AIDS Education and Training Center National Coordinating Resource Center Recommendations for Use of Antiretroviral Drugs in Pregnant HIV-1-Infected Women for Maternal Health and Interventions to Reduce Perinatal HIV Transmission in the United States HHS Panel on the Treatment of HIV-infected Pregnant Women and Prevention of Perinatal Transmission A Working Group of the Office of AIDS Research Advisory Council AETC NCRC Slide Set About This Presentation These slides were developed from the August 6, 2015 revisions to the guidelines. The goal of the guidelines is to provide guidance to HIV care practitioners. Because the field of HIV care is changing rapidly, users of this slide set are advised to check http://aidsinfo.nih.gov/guidelines/html/3/perinatalguidelines/0 for updates. It is intended that these slides be used as prepared, without changes in either content or attribution. Users are asked to honor this intent. AETC National Coordinating Resource Center 2 August 2015 Table of Contents Topic 3 Introduction Preconception Counseling Antepartum Care Intrapartum Care Postpartum Care Care of the Neonate Appendices Slide Number 6 9 27 112 122 128 151 August 2015 Abbreviations Antibody (Ab) Antigen (Ag) Antiretroviral (ARV) Antiretroviral therapy (ART) Centers for Disease Control and Prevention (CDC) Combination antiretroviral therapy (cART) Enzyme immunoassay (EIA) Fixed dose combination (FDC) Immune reconstitution inflammatory syndrome (IRIS) Integrase strand transfer inhibitor (INSTI) Intrauterine device (IUD) Nucleoside/Nucleotide analogue reverse transcriptase inhibitor (NRTI/NtRTI) Non-Nucleoside analogue reverse transcriptase inhibitor (NNRTI) Pharmacokinetic (PK) Polymerase chain reaction (PCR) Proton pump inhibitor (PPI) Pre-exposure prophylaxis (PrEP) Protease inhibitor (PI) Viral load (VL) 4 August 2015 Drug Abbreviations NRTI Abacavir (ABC) Didanosine (ddI) Emtricitabine (FTC) Lamivudine (3TC) Stavudine (d4T) Tenofovir DF (TDF) Zidovudine (AZT, ZDV) PI Atazanavir (ATV) Darunavir (DRV) Fosamprenavir (FPV) Indinavir (IDV) Lopinavir (LPV) Nelfinavir (NFV) Saquinavir (SQV) Tipranavir (TPV) Entry Inhibitor Enfuvirtide (ENF, T-20) Maraviroc (MVC) INSTI Raltegravir (RAL) Elvitegravir (EVG) Dolutegravir (DTG) NNRTI Efavirenz (EFV) Etravirine (ETR) Nevirapine (NVP) Rilpivirine (RPV) 5 Pharmacokinetic Enhancers Ritonavir (RTV, /r) Cobicistat (COBI) August 2015 Introduction (1) With universal prenatal HIV counseling and testing, preconception care, ARV prophylaxis, scheduled Csection delivery (if indicated), and avoidance of breastfeeding, the rate of perinatal transmission of HIV infection has diminished to <2% in the United States. The CDC goal for elimination of perinatal HIV transmission in the U.S. is defined as a rate of <1%. A focus on appropriate overall medical care for HIVinfected women is the best way to prevent HIV infection of infants. Every HIV-infected infant is a sentinel event representing missed opportunities for prevention. 6 August 2015 Introduction (2) A critical component of prevention of perinatal HIV transmission is ensuring the use of ART to maximally suppress viral replication as early as possible during pregnancy. Combined antepartum, intrapartum, and infant ARV prophylaxis is recommended to prevent perinatal transmission of HIV. ARV drugs reduce perinatal transmission by several mechanisms, including: Lowering maternal antepartum HIV RNA (viral load). Providing infant pre- and post-exposure prophylaxis. 7 August 2015 Introduction (3) Recommendations in these guidelines are based on scientific evidence and expert opinion and are rated using the system below: Strength of Recommendation A: Strong B: Moderate C: Optional Quality of Evidence I: One or more randomized trials with clinical outcomes and/or validated laboratory end points II: One or more well-designed, nonrandomized trials or observational studies with long-term clinical outcomes III: Expert opinion 8 August 2015 AIDS Education and Training Center National Coordinating Resource Center PRECONCEPTION COUNSELING AND CARE FOR HIV-INFECTED WOMEN OF CHILDBEARING AGE Preconception Counseling and Care (1) Comprehensive family planning and preconception care is part of routine primary care and is recommended by CDC, ACOG, and other national organizations. Purpose: Prevention of unintended pregnancies. Optimization of maternal health prior to pregnancy. Prevention of perinatal transmission. Prevention of HIV transmission to an uninfected partner while trying to conceive. 10 August 2015 Preconception Counseling and Care (2) Recommendations Discuss childbearing intentions with all women of childbearing age on an ongoing basis throughout the course of their care (AIII). Provide information about effective and appropriate contraceptive methods to reduce the likelihood of unintended pregnancy (AI). 11 August 2015 Preconception Counseling and Care (3) During preconception counseling, include information on safer sexual practices and elimination of alcohol, illicit drugs, and smoking (AII). All HIV-infected women contemplating pregnancy should be receiving combination antiretroviral therapy (cART) and have a plasma viral load below the limit of detection prior to conception (AII). 12 August 2015 Preconception Counseling and Care (4) When selecting or evaluating cART for HIVinfected women of childbearing age, consider the following (AII): A regimen’s effectiveness. A woman’s hepatitis B status. Teratogenic potential of the drugs in the cART regimen. Possible adverse outcomes for the mother and fetus. 13 August 2015 Preconception Counseling and Care (5) Women who do not desire pregnancy should be offered contraception, including hormonal contraception and intrauterine devices. HIV infection does not preclude the use of any contraceptive method (AII). However, drug-drug interactions between hormonal contraceptives and cART should be taken into account. Interactions between some ARVs and hormonal contraceptives may lower contraceptive efficacy. Emergency contraception can be used as appropriate ̶ either pills or copper IUD. Again, be aware of potential interactions with ARVs that could lower contraceptive efficacy. 14 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII (1) NNRTIs: See Guidelines Table 3 ARV Drug Recommendation for Combined Hormonal Methods and Progestin-Only Pills Recommendation for DMPA Recommendation for Etonogestrel Implants EFV Use alternative or additional contraception No additional contraceptive needed Use alternative or additional contraception ETR No additional contraceptive needed No additional contraceptive needed No additional contraceptive needed NVP Consider alternative contraceptive, or barrier + oral hormonal methods No additional contraceptive needed Consider alternative contraceptive, or barrier + implant RPV No additional contraceptive needed No additional contraceptive needed No additional contraceptive needed 15 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII) (2) RTV-Boosted PIs: See Guidelines Table 3 ARV Drug Recommendation for Combined Hormonal Methods and Progestin-Only Pills Recommendation for DMPA Recommendation for Etonogestrel Implants ATV/r Use alternative or additional contraception No additional contraceptive needed Consider alternative contraceptive, or barrier + implant DRV/r Use alternative or additional contraception No additional contraceptive needed No additional contraceptive needed FPV/r Use alternative or additional contraception No additional contraceptive needed Consider alternative contraceptive, or barrier + implant LPV/r Use alternative or additional contraception No additional contraceptive needed Consider alternative contraceptive, or barrier + implant 16 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII) (3) RTV-Boosted PIs: See Guidelines Table 3 ARV Drug Recommendation for Combined Hormonal Methods and ProgestinOnly Pills Recommendation for DMPA Recommendation for Etonogestrel Implants SQV/r Use alternative or additional contraception No additional contraceptive needed Consider alternative contraceptive, or barrier + implant TPV/r Use alternative or additional contraception No additional contraceptive needed Consider alternative contraceptive, or barrier + implant 17 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII) (4) PIs without RTV: See Guidelines Table 3 ARV Drug ATV Recommendation for Combined Hormonal Methods and ProgestinOnly Pills Recommendation for DMPA Recommendation for Etonogestrel Implants No additional contraceptive needed No additional contraceptive needed No additional contraceptive needed No additional contraceptive needed Use alternative or additional contraception •OC should contain ≤30 μg ethinyl estradiol (EE), or use alternative method •No data on OCs with <25 μg EE or progestins other than norethindrone or norgestimate FPV Use alternative contraception (use with estradiol/norethindrone may cause virologic failure) 18 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII) (5) PIs without RTV: See Guidelines Table 3 ARV Drug Recommendation for Combined Hormonal Methods and Progestin-Only Pills Recommendation for DMPA Recommendation for Etonogestrel Implants IDV No additional contraceptive needed No additional No additional contraceptive needed contraceptive needed NFV Use alternative or additional contraception No additional Use alternative or contraceptive needed additional contraception 19 August 2015 Drug Interactions between ARVs and Hormonal Contraceptives (CIII) (6) Integrase Inhibitors: See Guidelines Table 3 ARV Drug Recommendation for Combined Hormonal Methods and Progestin-Only Pills Recommendation for DMPA Recommendation for Etonogestrel Implants RAL DTG No additional contraceptive needed No additional contraceptive needed No additional contraceptive needed EVG/COBI CCR5 Antagonist: See Guidelines Table 3 ARV Drug MVC 20 Recommendation for Combined Hormonal Methods and Progestin-Only Pills Recommendation for DMPA Recommendation for Etonogestrel Implants No additional contraceptive needed August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (1) For concordant (both partners are HIV infected) and discordant couples: Expert consultation is recommended so that approaches can be tailored to specific needs (AIII). Partners should be screened and treated for genital tract infections before attempting to conceive (AII). The HIV-infected partner should attain maximum viral suppression before attempting conception (AIII). 21 August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (2) For discordant couples: The HIV-infected partner should be receiving combination antiretroviral therapy and demonstrate sustained suppression of plasma viral load below the limits of detection (AI). cART for the infected partner may not be fully protective against sexual transmission of HIV. Periconception administration of antiretroviral preexposure prophylaxis (PrEP) for HIV-uninfected partners may offer an additional tool to reduce the risk of sexual transmission. (CIII) The utility of PrEP for the uninfected partner when the infected partner is receiving cART and has a suppressed viral load has not been studied. 22 August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (3) Discordant couples with HIV-infected women: The safest conception option is artificial insemination, including the option of self-insemination with a partner’s sperm during the periovulatory period (AIII). 23 August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (4) Discordant couples with HIV-infected men: The use of donor sperm from an HIV-uninfected male with artificial insemination is the safest option (AIII). When the use of donor sperm is unacceptable, the use of sperm preparation techniques coupled with either intrauterine insemination or in vitro fertilization should be considered (AII). Semen analysis is recommended for HIV-infected males before conception is attempted to prevent unnecessary exposure to infectious genital fluid when the likelihood of getting pregnant is low because of semen abnormalities (AIII). 24 August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (5) Periconception PrEP Very few data to date on periconception PrEP; studies under way. Infected partner should be on ART with fully suppressed HIV viral load. Once daily tenofovir/emtricitabine is currently FDA approved for PrEP; CDC recommends 1 month before and 1 month after conception attempted. Couples should use condoms at all times except during periovulatory intercourse. No reported increase in congenital anomalies for children whose mothers were exposed to tenofovir or emtricitabine during first trimester. Review Table 4 “Clinical Trials of PrEP” for more information 25 August 2015 Reproductive Options for HIV-Concordant and Serodiscordant Couples (6) Baseline laboratory testing for HIV infection, renal function, pregnancy, and chronic HBV infection should be done before initiating PrEP. HBV-uninfected individuals should be vaccinated. Monitor for potential side effects such as renal dysfunction and clinical toxicities. Conduct pregnancy test every 3 months. Test HIV-uninfected partner for HIV every 3 months; if result is HIV positive, discontinue PrEP to minimize drug resistance and refer for treatment. 26 August 2015 AIDS Education and Training Center National Coordinating Resource Center ANTEPARTUM CARE Principles of ARV Use during Pregnancy (1) Initial evaluation of HIV-infected pregnant women should include assessment of HIV disease status and recommendations regarding initiation or modification of cART (AIII). All pregnant women should receive ART to prevent perinatal transmission regardless of HIV RNA and CD4 levels (AI). The goal of cART is to maintain a viral load below the limit of detection throughout pregnancy. Combined antepartum, intrapartum, and infant ARV prophylaxis is recommended because ARV drugs reduce perinatal transmission by several mechanisms, including lowering maternal antepartum viral load and providing infant pre- and postexposure prophylaxis (AI). 28 August 2015 Principles of ARV Use during Pregnancy (2) The known benefits and potential risks of all medication use, including ARV use, during pregnancy should be discussed with all HIV-infected women (AIII). The importance of adherence to ARV regimens should be emphasized in patient counseling (AII). ARV drug-resistance studies should be performed before starting or modifying ARV drug regimens in women whose HIV RNA is above the threshold for resistance testing (AIII). In pregnant women not already receiving cART, consideration should be given to initiating cART before results of drugresistance testing are available because earlier viral suppression has been associated with lower risk of transmission. If cART is initiated before results are available, the regimen should be modified, if necessary, based on resistance assay results (BIII). 29 August 2015 Principles of ARV Use during Pregnancy (3) Coordination of services among prenatal care providers, primary care and HIV specialty care providers, and when appropriate, mental health and drug abuse treatment services, and public assistance programs, is essential to ensure that infected women adhere to their ARV drug regimens (AIII). 30 August 2015 Clinician Consultation Center (formerly the National Perinatal HIV Hotline) (1-888-448-8765) http://nccc.ucsf.edu/clinician-consultation/perinatal-hiv-aids/ For free clinical consultation about all aspects of perinatal HIV care 31 August 2015 General Principles of Drug Selection Guidelines for use of cART for maternal health during pregnancy generally are the same as for women who are not pregnant. Some modifications based on concerns about specific ARVs during pregnancy and limited experience during pregnancy with newer ARVs. Consider and discuss the benefits vs. risks of ARV drug use during pregnancy. Ensure that at least 1 NRTI with high placental transfer is included in cART regimen for sufficient infant preexposure prophylaxis. Counsel women on the importance of close adherence to ARV regimen. Offer support services, mental health services, smoking cessation, and drug abuse treatment plans as indicated. Coordinate between HIV and OB specialists. 32 August 2015 Teratogenicity (1) All cases of ARV drug exposure during pregnancy should be reported to the Antiretroviral Pregnancy Registry at: http://www.APRegistry.com (AIII). Efavirenz (EFV): Nonpregnant women of childbearing potential should undergo pregnancy testing before initiation of EFV and receive counseling about the potential risk to the fetus and desirability of avoiding pregnancy while on EFV-containing regimens (AIII). Alternative ARV regimens that do not include EFV should be strongly considered in women who are planning to become pregnant or are sexually active and not using effective contraception, assuming these alternative regimens are not thought to compromise the woman’s health (BIII). 33 August 2015 Teratogenicity (2) EFV can be continued in women receiving an EFV-based regimen who present for antenatal care in the first trimester because the risk of neural tube defects is restricted to the first 5-6 weeks of pregnancy. Pregnancy is rarely recognized before 5-6 weeks of pregnancy, and unnecessary changes in ARV drugs during pregnancy may be associated with loss of viral control and increased risk of perinatal transmission. In such situations, fetal ultrasound is recommended at 18 to 20 weeks to assess anatomy (CIII). 34 August 2015 Teratogenicity (3) Data from recently-reported cohort studies and updated APR data reaffirm the lack of association between first trimester exposure to any ARV’s and increased risk of birth defects. A recent study found small but statistically significant decreases in bone mineral content in newborns exposed to tenofovir in utero. Clinical significance and long term outcome not clear. Refer to Table 7 and Appendix B for information about individual drugs. 35 August 2015 Combination ARV Drug Regimens and Pregnancy Outcome Clinicians should be aware of a possible small increased risk of preterm birth in pregnant women receiving protease inhibitor (PI)-based ART. However, given the clear benefits of such regimens for both a women’s health and prevention of perinatal transmission, PIs should not be withheld for fear of altering pregnancy outcome (AII). 36 August 2015 Recommendations for Use of ARVs during Pregnancy (1) In general, the same regimens as recommended for treatment of nonpregnant adults should be used in pregnant women unless there are known adverse effects for women, fetuses, or infants that outweigh benefits (AIII). Multiple factors must be considered when choosing a regimen for a pregnant woman including comorbidities, convenience, adverse effects, drug interactions, resistance testing results, pharmacokinetics (PK), and experience with use in pregnancy (AII). PK changes may lead to lower plasma drug levels of drugs and necessitate increased dosages, more frequent dosing, or boosting, especially of protease inhibitors (AII). 37 August 2015 Recommendations for Use of ARVs during Pregnancy (2) Individualize ARVs based on factors such as: 38 Potential adverse effects on woman and on fetus Experience in pregnancy Genotypic resistance testing and prior ARV exposure PK changes in pregnancy, placental ARV transfer Comorbidities Ability to adhere and convenience August 2015 ART for Pregnant Women Who Are ARV Naive (1) All HIV-infected pregnant women should receive cART to reduce the risk of perinatal transmission of HIV (AI). The choice of regimen should take into account current adult treatment guidelines, what is known about the use of specific drugs in pregnancy, and the risk of teratogenicity (see Tables 6 and 7 for drug information). Reducing HIV RNA to undetectable levels lowers the risk of perinatal transmission, lessens the need for elective Csection to reduce risk of HIV transmission, and reduces risk of ARV drug resistance in the mother. 39 August 2015 ART for Pregnant Women Who Are ARV Naive (2) Consideration should be given to initiating cART as soon as HIV is diagnosed during pregnancy; earlier viral suppression is associated with lower risk of transmission. This decision may be influenced by CD4 count, HIV RNA levels, and maternal conditions (e.g., nausea and vomiting) (AIII). The benefits of cART must be weighed against potential fetal effects of drug exposure. Fetuses are most susceptible to potential teratogenic effects in the first trimester. However, evidence from observational studies has been reassuring showing no differences in rates of birth defects between first trimester and later gestational exposures or rates in the general population. 40 August 2015 ART for Pregnant Women Who Are ARV Naive (3) ARV drug-resistance studies should be performed to guide selection of ARV regimen in women whose HIV RNA is above the threshold for resistance testing unless drug-resistance studies have already been performed (AI). If cART is initiated before the results of the drugresistance assays are available, the antiretroviral regimen should be modified, if necessary, based on the resistance assay results (BIII). 41 August 2015 ART for Pregnant Women Who Are ARV Naive (4) cART regimens for ARV naïve pregnant women should include at least 3 ARVs, as in nonpregnant adults: 2 NRTIs + 1 ritonavir-boosted PI OR 2 NRTIs + 1 NNRTI, OR 2 NRTIs + 1 integrase inhibitor. If there is no evidence of resistance, preferred cART regimens for the treatment of antiretroviral-naive HIVinfected pregnant women include: a dual NRTI combination (ABC/3TC, TDF/FTC or 3TC, or ZDV/3TC) AND either a ritonavir-boosted PI (ATV/r or DRV/r), OR a NNRTI (EFV initiated after 8 weeks of pregnancy), OR an integrase inhibitor (RAL) (AIII). See Table 6 for information about ARV regimens for ARV naïve pregnant women: Preferred, Alternative, Insufficient data and Not recommended 42 August 2015 ART for Pregnant Women Who Are ARV Naive (5) Preferred Drugs or Drug Combinations Clinical trial data in adults have demonstrated optimal efficacy and durability with acceptable toxicity and ease of use. Pregnancy-specific PK data are available to guide dosing. No established association with teratogenic effects or clinically significant adverse outcomes for mothers, fetuses, or newborns. Some recommended ARVs may have toxicity in animal studies that has not been verified in humans. 43 August 2015 Initial ART for ARV-Naive Pregnant Women (1) Preferred 2-NRTI Backbone Regimens Comments ABC/3TC • Available as FDC, can be given once daily • Potential HSR: ABC should not be used in patients who test positive for HLA-B*5701 because of risk of hypersensitivity reaction • Not recommended with ATV/r or with EFV if pretreatment HIV RNA >100,000 copies/mL TDF/FTC or TDF + 3TC • Available as FDC, can be given once daily • TDF has potential renal toxicity, use with caution in patients with renal insufficiency ZDV/3TC • Most experience for use during pregnancy • Available as FDC. Twice-daily administration • Higher risk of hematologic toxicity 44 August 2015 Initial ART for ARV-Naive Pregnant Women (2) Preferred PI Regimens Comments ATV/r + preferred 2-NRTI • Once daily administration • Extensive experience in pregnancy backbone • Maternal hyperbilirubinemia DRV/r + preferred 2-NRTI • Better tolerated than LPV/r. • PK data available. Increasing backbone experience in pregnancy • Must be used twice-daily in pregnancy. 45 August 2015 Initial ART for ARV-Naive Pregnant Women (3) Preferred NNRTI Regimen Comments EFV + preferred 2-NRTI backbone Note: May be initiated after the first 8 weeks of pregnancy 46 • Birth defects in primates; risk in humans is unclear. • Postpartum contraception must be ensured. • Preferred regimen in women requiring coadministration of drugs with significant interactions with PIs or the convenience of co-formulated, single-tablet, once-daily regimen. August 2015 Initial ART for ARV-Naive Pregnant Women (3) Preferred Integrase Inhibitor Regimen Comments RAL + preferred 2-NRTI backbone 47 • PK data available and increasing experience in pregnancy. • Rapid viral load reduction. • Useful when drug interactions with PI regimens are a concern. • Twice-daily dosing required. August 2015 Initial ART for ARV-Naive Pregnant Women (4) Alternative Regimens: Clinical trial data demonstrate efficacy in adults but experience in pregnancy is limited, data are lacking or incomplete on teratogenicity, or the drug or regimen is associated with dosing, tolerability, formulation, toxicity, or interaction issues. 48 August 2015 Initial ART for ARV-Naive Pregnant Women (5) Alternative PI Regimens Comments LPV/r + preferred 2NRTI backbone 49 • Abundant experience and established PK in pregnancy. • More nausea than preferred agents. • Twice-daily administration. Once-daily LPV/r is not recommended for use in pregnant women. August 2015 Initial ART for ARV-Naive Pregnant Women (6) Alternative NNRTI Regimen Comments RPV + preferred 2NRTI backbone 50 • RPV not recommended with pretreatment HIV RNA >100,000 copies/mL or CD4 cell count <200 cells/mm3. • Do not use with PPIs. • PK data available in pregnancy but relatively little experience with use in pregnancy. • Available in co-formulated single-pill once daily regimen. August 2015 Initial ART for ARV-Naive Pregnant Women (7) Insufficient Data to Recommend: Drugs and drug combinations are approved for use but lack sufficient pregnancy-specific PK or safety data. Not Recommended: Inferior virologic response, potentially serious maternal or fetal safety concerns, or pharmacologic antagonism, or not recommended for ARV-naive non-pregnant populations. 51 August 2015 Initial ART for ARV-Naive Pregnant Women (8) Insufficient Data to Recommend Routine Use DTG EVG/COBI/TDF/FTC FDC FPV MVC RPV Not Recommended ABC/3TC/ZDV SQV d4T ETR ddI NVP IDV/r T-20 NFV TPV/r RTV as single PI 52 August 2015 Table 7. Antiretroviral Drug Use in Pregnant HIVInfected Women Summary table of information about individual ARVs with pharmacokinetic and toxicity data and recommendations for use in pregnancy. Includes: Formulations, including fixed dose combinations (FDCs) Dosing recommendations Pharmacokinetics Dosing in pregnancy Use in pregnancy 53 Placental transfer Teratogenicity Toxicity Considerations about use August 2015 Individual ARVs: Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (1) Comments on Use during Pregnancy Abacavir (ABC) PK not significantly altered. High placental transfer. No evidence of teratogenicity. Hypersensitivity reactions occur in 5-8% of nonpregnant women; much smaller percentage are fatal and usually associated with rechallenge. Testing for HLA-B*5701 identifies patients at risk; conduct before starting ABC, do not give if positive. Didanosine PK not significantly altered. Low-moderate placental transfer. (ddl) Do not use with d4T; may cause lactic acidosis and death if used together. Increased rate of birth defects compared with general population noted after 1st trimester and later exposure, relevance uncertain. 54 August 2015 Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (2) Comments on Use during Pregnancy Emtricitabine PK not significantly altered. High placental transfer. No evidence of teratogenicity. (FTC) Active against HBV; if hepatitis B (HBV)-coinfected, flare may occur if drug stopped. Lamivudine (3TC) PK not significantly altered. High placental transfer. No evidence of teratogenicity. Active against HBV; if HBV-coinfected, flare may occur if drug stopped. Stavudine (d4T) PK not significantly altered. High placental transfer. No evidence of teratogenicity. Do not use with ddl or ZDV. May cause lactic acidosis or death if ddI and d4T used together. August 2015 55 Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (3) Comments on Use during Pregnancy Tenofovir Disoproxil Fumarate (TDF) AUC lower in 3rd trimester; trough levels adequate—no dosing change needed. High placental transfer. No evidence of human teratogenicity. In monkeys, decreased fetal growth and fetal bone porosity. Human studies demonstrate no effect on intrauterine growth, but data are conflicting about potential effects on growth outcomes later in infancy. Risk of renal toxicity; monitor renal function. Active against HBV; if HBV-coinfected, hepatitis flare may occur if drug stopped. Zidovudine (AZT, ZDV) 56 PK not significantly altered. High placental transfer. No evidence of teratogenicity. August 2015 Table 7. Nonnucleoside Reverse Transcriptase Inhibitors (NNRTIs) (1) Comments on Use during Pregnancy Efavirenz (EFV) AUC decreased in 3rd trimester but no change in dose indicated. Moderate placental transfer. Potential fetal safety concern. CNS or other malformations observed in 3 of 20 monkeys; 6 human reports + 1 case report of CNS defects and 1 report of anophthalmia. • Counsel nonpregnant women on risks and conduct pregnancy test prior to initiation of EFV. • Consider alternative regimen in women planning to become pregnant and those who are sexually active and not using effective contraception, assuming alternatives are acceptable to provider and will not compromise health of the woman. • Continue EFV in pregnant women receiving and EFV-based regimen who present for care in 1st trimester if there is virologic suppression on the regimen. 57 August 2015 Nonnucleoside Reverse Transcriptase Inhibitors (NNRTIs) (2) Comments on Use during Pregnancy Etravirine (ETR) PK data suggest increased exposure, no dosing change needed. Variable placental transfer—usually moderate to high. Teratogenicity data insufficient in humans; no evidence of teratogenicity in rats or rabbits. Nevirapine PK not significantly altered. High placental transfer. No evidence of teratogenicity. (NVP) Increased risk of potentially life-threatening hepatotoxicity (often rash-associated) in women with high CD4 count at the time of NVP initiation. If CD4 is >250 cells/µL, start NVP only if benefit outweighs risk. Elevated transaminase levels at baseline may also increase risk. Women who become pregnant while on NVP and are tolerating it well can continue, regardless of CD4 count. 58 August 2015 Non-nucleoside Reverse Transcriptase Inhibitors (NNRTIs) (3) Comments on Use during Pregnancy Rilpivirine (RPV) 59 Reduced PK but exceeded target exposure, no dosing change needed. Moderate to high placental transfer. Insufficient data to assess for teratogenicity in humans. No evidence of teratogenicity in rats or rabbits. August 2015 Protease Inhibitors (1) Class concerns for PIs: hyperglycemia, diabetes mellitus, diabetic ketoacidosis, question of increased risk of preterm delivery Recommendations for Use during Pregnancy Atazanavir (ATV) Decreased ATV plasma concentrations during pregnancy; further reduced further when given concomitantly with TDF or H2receptor antagonist. Low placental transfer. No evidence of human teratogenicity. Must be given with RTV boosting during pregnancy, unboosted ATV not recommended. Use of ATV/r with TDF AND H2 antagonist in pregnancy not recommended. Unknown effect of in utero ATV exposure on infant indirect bilirubin levels; nonpathologic elevations of hyperbilirubinemia observed in some neonates. 60 August 2015 Protease Inhibitors (2) Comments on Use during Pregnancy Darunavir (DRV) Decreased exposure in pregnancy. Once daily dosing not recommended, give twice daily. Increased twice daily DRV dose being investigated. Low placental transfer. No evidence of human teratogenicity. Must be combined with low-dose RTV. Fosamprenavir AUC reduced during 3rd trimester. Low placental transfer. Insufficient data to assess teratogenicity risk in humans; (FPV) increased fetal loss in rabbits; no increase in defects in rats and rabbits. Give twice daily standard dose with RTV boosting during pregnancy. Unboosted FPV or once daily FOS with RTV boosting not recommended. 61 August 2015 Protease Inhibitors (3) Comments on Use during Pregnancy Indinavir (IDV) Minimal placental transfer. No evidence of human teratogenicity in cases reported to APR. Must be given with RTV boosting during pregnancy. Unboosted IDV not recommended. Theoretical concern regarding increased bilirubin in neonates. Lopinavir/ ritonavir (LPV/r) PK indicated reduced exposure during pregnancy. Low placental transfer. No evidence of human teratogenicity. Must be given twice daily during pregnancy. Some experts recommend dosage increase in 2nd and 3rd trimesters. Monitor virologic response and LPV drug levels with standard dose. Oral solution contains 42% alcohol and 15% propylene glycol and is not recommended for use during pregnancy. 62 August 2015 Protease Inhibitors (4) Comments on Use during Pregnancy Nelfinavir Lower NFV exposure in 3rd trimester. Twice daily dosing. Minimal to low placental transfer. No evidence of human (NFV) teratogenicity. Contains aspartame, should not be used in individuals with phenylketonuria. Ritonavir Recommended only as low dose PK booster for other PIs. See pharmacokinetic enhancers. (RTV) 63 August 2015 Protease Inhibitors (5) Comments on Use during Pregnancy Saquinavir (SQV) SQV exposure may be reduced in pregnancy but not significantly. No dose change needed. Low placental transfer. Insufficient data to assess for teratogenicity in humans; no evidence of teratogenicity in rats or rabbits. Must be combined with low-dose RTV boosting. PR and/or QT interval prolongations have been observed; baseline ECG recommended before starting. Contraindicated if cardiac conduction system disease. SQV contraindicated in patients with preexisting cardiac conduction system disease. Tipranavir (TPV) 64 No PK data in human pregnancy. Moderate placental transfer reported in 1 patient. Insufficient data to assess for teratogenicity in humans; no evidence of teratogenicity in rats or rabbits. August 2015 Entry Inhibitors Comments on Use during Pregnancy Enfurvirtide (T-20) No PK data in pregnancy. Minimal/low placental transfer. No data on human teratogenicity. Insufficient data to recommend use Maraviroc (MVC) No PK studies in pregnancy. No evidence of teratogenicity in rats or rabbits.. Insufficient data to recommend use 65 August 2015 Integrase Inhibitors Comments on Use during Pregnancy Dolutegravir (DTG) No PK data in pregnancy; insufficient data to make dosing recommendation. Unknown placental transfer. Insufficient data to assess for teratogenicity in humans; no evidence of teratogenicity in mice, rats or rabbits. Elvitegravir (EVG) No PK data in pregnancy; insufficient data to make dosing recommendation. No data on placental transfer. Insufficient data to assess for teratogenicity in humans; no evidence of teratogenicity in rats or rabbits Raltegravir (RAL) 66 Decreased levels 3rd trimester but no dosing change needed. High placental transfer. Insufficient data to assess teratogenicity in humans. Increased skeletal variants in rats, no increase in defects in rabbits. Case report of severe increase in transaminases. Chewable tablets contain phenylalanine. August 2015 Pharmacokinetic Enhancers Comments on Use during Pregnancy Cobicistat (COBI) No PK data in pregnancy. No data on placental transfer. Insufficient data to assess for teratogenicity in humans. No evidence of teratogenicity in rats or rabbits. Ritonavir (RTV) Recommended only as low dose PK booster for other PIs. No dosage adjustment needed when used as booster. Minimal to low placental transfer. No evidence of human teratogenicity. Oral solution not optimal during pregnancy owing to alcohol content. 67 August 2015 HIV-Infected Pregnant Women Who Are Currently Receiving Antiretroviral Therapy (1) In general, HIV-infected pregnant women receiving cART who present for care in the 1st trimester should continue treatment during pregnancy, assuming the regimen is tolerated and effective in suppressing viral replication (HIV-1 viral load less than lower limits of detection of the assay) (AII). It is recommended that efavirenz be continued in pregnant women receiving efavirenz-based cART who present for antenatal care in the first trimester provided the regimen is achieving virologic suppression (CIII). 68 August 2015 HIV-Infected Pregnant Women Who Are Currently Receiving Antiretroviral Therapy (2) Rationale for continuing EFV in pregnancy: 1st-trimester exposure is not definitely associated with increased risk of neural tube defects. The risk of neural tube defects is limited to the first 5-6 weeks of pregnancy, before most pregnancies are recognized. Unnecessary ARV changes during pregnancy may increase the risk of loss of virologic control and transmission to infant. 69 August 2015 HIV-Infected Pregnant Women Who Are Currently Receiving Antiretroviral Therapy (3) HIV antiretroviral drug-resistance testing should be performed to assist in the selection of active drugs when changing antiretroviral regimens in pregnant women on therapy with virologic failure and HIV RNA levels >1,000 copies/mL (AI). In individuals with HIV RNA levels >500 but <1,000 copies/mL, testing may be unsuccessful but should still be considered (BII). * See Lack of Viral Suppression 70 August 2015 Pregnant Women Who Are ARV-Experienced but Not Currently on ARVs (1) Obtain an accurate history of all prior ARV regimens used for treatment of HIV disease or prevention of transmission, including virologic efficacy, tolerance, results of prior resistance testing, and any adherence issues (AIII). If HIV RNA is above the threshold for resistance testing (i.e., >500 to 1,000 copies/mL), do ARV drug-resistance studies before starting ART (see Antiretroviral Drug Resistance and Resistance Testing in Pregnancy) (AIII). Consideration should be given to initiating cART prior to receiving results of antiretroviral drug resistance studies in light of data demonstrating an association between earlier viral suppression and lower risk of HIV transmission. The antiretroviral regimen should be modified based on the results of the resistance assay, if necessary (BIII). 71 August 2015 Pregnant Women Who Are ARV-Experienced but Not Currently on ARVs (2) Choose and initiate a cART regimen based on results of resistance testing and prior history of cART while avoiding drugs with teratogenic potential or with known adverse potential for the mother or fetus/infant (AII). Consider obtaining a consultation with specialists in treatment of HIV infection about the choice of a cART regimen for women who previously received ARV (AIII). Perform repeat ARV resistance testing (AI), assess adherence, and consult with an HIV treatment specialist to guide changes in ARV drugs in women who do not achieve virologic suppression on their ARV regimens. 72 August 2015 Pregnant Women Who Are ARV-Experienced but Not Currently on ARVs (3) Pregnant women with HIV infection who have received ARVs previously for prevention of perinatal transmission: Concern that time-limited use may lead to genotypic resistance and reduced efficacy in subsequent pregnancies. Rates of resistance appear to be low after prophylaxis with cART. NVP prophylaxis may cause resistance and failure of subsequent NVP-based cART. Longer, more complex ARV tails after stopping pregnancylimited NVP appear to reduce risk of resistance. 73 August 2015 Pregnant Women Who Are ARVExperienced but Not Currently on ARVs (4) Treatment failure has not been demonstrated with reinitiation of cART following prophylactic use of cART in pregnancy. Pregnant women with HIV infection who have received ARVs previously for their own health: Choice of ARV regimen may be challenging and will vary by: 74 History of ART and adherence problems Indication for stopping treatment Efficacy of previous ART Results of past and current resistance testing Lab testing, including HLA-B*5701 prior to abacavir use August 2015 Maternal and Fetal Monitoring during Pregnancy (1) More frequent HIV RNA (viral load) monitoring in pregnancy is recommended because of the importance of rapid and persistent viral suppression in preventing perinatal HIV transmission. Viral suppression generally achieved in 12-24 weeks in ARV-naive adherent individuals. May take longer in some patients and may be dependent on starting viral load. 75 August 2015 Maternal and Fetal Monitoring during Pregnancy (2) Monitor HIV RNA: At the initial visit (AI) 2-4 weeks after initiating or changing ARV drug regimens (BI) Monthly until HIV RNA is undetectable (BIII) At least every 3 months during pregnancy (BIII) HIV RNA should also be assessed at approximately 34-36 weeks’ gestation to inform decisions about mode of delivery and about infant ARV prophylaxis (AIII). 76 August 2015 Maternal and Fetal Monitoring during Pregnancy (3) Monitor CD4 count: At initial antenatal visit (AI). At least every 3 months during pregnancy (BIII). Can monitor CD4 count every 6 months in patients on cART with consistently suppressed viral load who have CD4 counts well above the threshold for opportunistic infection risk (CIII). 77 August 2015 Maternal and Fetal Monitoring during Pregnancy (4) Genotypic resistance testing should be performed at baseline in all HIV-infected pregnant women with HIV RNA levels >1,000 copies/mL (A1). In individuals with HIV RNA levels >500 but <1,000 copies/mL, testing may be unsuccessful but should still be considered (BII). Tests should be performed whether the women are antiretroviral-naive or currently on therapy (AIII). 78 August 2015 Maternal and Fetal Monitoring during Pregnancy (4) HIV drug-resistance studies should be performed before modifying antiretroviral regimens for those entering pregnancy with detectable HIV RNA levels that are above the threshold for resistance testing (i.e., >500 to 1,000 copies/mL) while receiving antiretroviral drugs. They should also be performed on women who have suboptimal viral suppression after starting ARV drugs during pregnancy (AII). 79 August 2015 Maternal and Fetal Monitoring during Pregnancy (5) Monitoring for complications of ARV drugs should be based on what is known about the adverse effects of the drugs a woman is receiving (AIII). Women taking cART during pregnancy should undergo standard glucose screening at 24-28 weeks’ gestation (AIII). Some experts would perform earlier glucose screening in women receiving PI-based regimens initiated before pregnancy, similar to recommendations for women with high risk factors for glucose intolerance (BIII). Early ultrasound is recommended to confirm gestational age and, if scheduled cesarean delivery is necessary, to guide its timing (AII). 80 August 2015 Maternal and Fetal Monitoring during Pregnancy (6) In women on effective cART, no perinatal transmissions have been reported after amniocentesis, but a small risk of transmission cannot be ruled out. If amniocentesis is indicated, it should be performed only after initiation of an effective cART regimen and, ideally, when HIV RNA levels are undetectable (BIII). In women with detectable HIV RNA levels in whom amniocentesis is deemed necessary, consultation with an expert should be considered (BIII). Consider using cell-free, fetal DNA as a noninvasive alternative to decrease need for amniocentesis. 81 August 2015 ARV Resistance during Pregnancy (1) Drug resistance: Is one of the major factors leading to treatment failure. May limit future maternal treatment options and decrease effectiveness of ARV prophylaxis during current and future pregnancies. Increased risk of resistance during pregnancy with: Nausea and vomiting (poor ARV adherence or absorption). PK changes. Postpartum: If taking ARVs with low genetic barrier to resistance and simultaneous discontinuation of drugs with different half-lives. 82 August 2015 ARV Resistance during Pregnancy (2) HIV drug-resistance studies should be performed before starting ARV regimens in all ARV-naïve pregnant women whose HIV RNA levels (> 500 to 1,000 copies/mL) are above the threshold for resistance testing unless they have already been tested for ARV resistance (AIII). HIV drug-resistance studies should be performed before modifying ARV regimens for those entering pregnancy with a detectable HIV RNA levels that are above the threshold for resistance testing while receiving ARV drugs and those who have suboptimal viral suppression after starting ARV drugs during pregnancy (AII). cART should be initiated in pregnant women prior to receiving results of ARV-resistance studies. The ARV regimen should be modified, if necessary, based on the results of the resistance assay (BIII). 83 August 2015 ARV Resistance during Pregnancy (3) Documented ZDV resistance does not affect the indications for use of intrapartum ZDV (BIII). The optimal prophylactic regimen for newborns of women with ARV resistance is unknown. Therefore, ARV prophylaxis for an infant born to a woman with known or suspected drug resistance should be determined in consultation with a pediatric HIV specialist, preferably before delivery (AIII). HIV-infected pregnant women should be given cART to maximally suppress viral replication, which is the most effective strategy for preventing development of resistance and minimizing risk of perinatal transmission (AII). 84 August 2015 ARV Resistance during Pregnancy (4) All pregnant and postpartum women should be counseled about the importance of adherence to prescribed ARV medications to reduce the potential for development of resistance (AII). Several studies demonstrated that women’s adherence to cART may worsen in the postpartum period. Clinicians should specifically address adherence including evaluating specific factors that facilitate or impede adherence. 85 August 2015 ARV Resistance during Pregnancy (5) To minimize development of resistance, pregnant women who receive an NNRTI-based combination ARV regimen that is discontinued after delivery should receive either dual NRTI agents alone (AI) or with a PI (BII) for 7-30 days (AII) after stopping the NNRTI drug. NNRTIs have longer half-lives than other ARVs. The optimal interval between stopping an NNRTI and the other ARV drugs is unknown. 86 August 2015 Lack of Viral Suppression (1) Because maternal antenatal viral load correlates with risk of perinatal transmission of HIV, suppression of HIV RNA to undetectable levels should be achieved as rapidly as possible (AII). High baseline viral load and later start of ART reduce the likelihood of HIV RNA suppression at delivery. 87 August 2015 Lack of Viral Suppression (2) If an ultrasensitive HIV RNA assay indicates failure of viral suppression (persistent HIV RNA >20-75 copies/mL, depending on the assay used) after an adequate period of treatment: Assess adherence and resistance (if HIV RNA high enough for resistance testing) (AII). Consult an HIV treatment expert and consider possible cART modification (AIII). Scheduled C-section is recommended for HIV-infected pregnant women who have HIV RNA >1,000 copies/mL near the time of delivery (AII). 88 August 2015 Lack of Viral Suppression (3) Addition of RAL in late pregnancy if the HIV RNA is high or if incomplete virologic suppression: RAL can rapidly suppress HIV RNA. Efficacy and safety of this approach have not been evaluated and it is not routinely recommended. In setting of drug resistance, addition of RAL may lead to RAL resistance. 89 August 2015 Stopping ARVs during Pregnancy (1) HIV-infected women on cART who present for care during the 1st trimester should continue treatment during pregnancy (AII). ART should not be interrupted in women taking EFV who present in the 1st trimester, if the HIV RNA is suppressed. If an ARV drug regimen is stopped acutely for severe or lifethreatening toxicity, severe pregnancy-induced hyperemesis unresponsive to antiemetics, or other acute illnesses that preclude oral intake, all ARV drugs should be stopped simultaneously and ARV therapy should be reinitiated as soon as possible (AIII). Restart all ARV drugs simultaneously with same or new regimen depending on situation/toxicity. 90 August 2015 Stopping ARVs during Pregnancy (2) EFV can be detected in the blood for longer than 3 weeks after discontinuation. Consider assessing rebound viremia and potential drug resistance if stopped if EFV containing regimen is stopped for more than a few days. If a NVP containing regimen has been stopped for more than 7 days, a 2 week dose escalation is recommended when restarting NVP. 91 August 2015 HIV/Hepatitis B Virus Coinfection (1) All HIV-infected pregnant women should be screened during pregnancy for hepatitis B virus (HBV) and hepatitis C virus (HCV) unless they are known to be coinfected or have already been screened during the current pregnancy (AIII). All HIV-infected pregnant women who screen negative for HBV (surface antigen, core antibody and surface antibody) should receive the HBV vaccine series (AII). Women with chronic HBV who have not already received the hepatitis A virus (HAV) vaccine series should be screened for immunity to HAV because they are at increased risk of complications from coinfection with other viral hepatitis infections (AIII). HAV vaccine series if negative for HAV IgG. 92 August 2015 HIV/Hepatitis B Virus Coinfection (2) The management of HIV/HBV coinfection in pregnancy is complex; consultation with an expert in HIV and HBV is strongly recommended (AIII). Interferon-alfa and pegylated interferon-alfa are not recommended during pregnancy (AIII). All pregnant women with HIV/HBV coinfection should receive cART. Antepartum cART should include TDF plus 3TC or FTC (AI). These drugs are active against HIV and HBV. Initiation of an ARV regimen that does not include anti-HBV drugs may be associated with reactivation of HBV and development of IRIS. 93 August 2015 HIV/Hepatitis B Virus Coinfection (3) Pregnant women with HIV/HBV coinfection receiving ARVs should be counseled about signs and symptoms of liver toxicity, and liver transaminases should be assessed 1 month following initiation of ARV drugs and at least every 3 months thereafter during pregnancy (BIII). If ARVs are discontinued postpartum in women with HIV/HBV coinfection, frequent monitoring of liver function tests for potential exacerbation of HBV infection is recommended, with prompt reinitiation of treatment for both HIV and HBV if a flare is suspected (BIII). 94 August 2015 HIV/Hepatitis B Virus Coinfection (4) Decisions concerning mode of delivery in HIV/HBVcoinfected pregnant women should be based on standard obstetric and HIV-related indications alone. HBV coinfection does not necessitate cesarean delivery, if not otherwise indicated (BIII). Within 12 hours of birth, infants born to women with HBV infection should receive hepatitis B immune globulin and should initiate the HBV vaccine series (A1). Timing of later doses in series differs between infants > 2,000 g and < 2,000 g. The regimen is 95% effective in preventing HBV. Post-vaccination testing for anti-HBs and HBsAg should be performed after completion of the vaccine series, at age 9 months to 18 months. 95 August 2015 HIV/Hepatitis C Virus Coinfection (1) All HIV-infected pregnant women should be screened during the current pregnancy for HBV and HCV unless they are known to be coinfected (AIII). Use the most sensitive immunoassays to detect HCV antibody (anti-HCV) (AIII). All HIV-infected pregnant women who screen negative for HBV should receive the HBV vaccination series (AII). Women with chronic HCV infection should also be screened for hepatitis A virus (HAV) because they are at increased risk of complications from coinfection with other viral hepatitis infections (AIII). 96 August 2015 HIV/Hepatitis C Virus Coinfection (2) The management of HIV/HCV coinfection in pregnancy is complex because currently approved medications for HCVare not recommended during pregnancy, and no safety data exist for use of the recently approved HCV oral medications in pregnant women (AIII). If considering treatment of HCV in a coinfected pregnant woman, consultation with an expert in HIV and HCV is strongly recommended (AIII). Interferon-alfa and pegylated interferon-alfa are not recommended and ribavirin is contraindicated during pregnancy (AII). No pregnancy data on newer oral agents. 97 August 2015 HIV/Hepatitis C Virus Coinfection (3) Recommendations for ARV drug use during pregnancy are the same for HIV-infected women whether or not they have chronic HCV (BIII). Pregnant women with HIV/HCV coinfection receiving ARV drugs should be counseled about signs and symptoms of liver toxicity, and liver transaminases should be assessed 1 month following initiation of ARV drugs and at least every 3 months thereafter during pregnancy (BIII). Decisions concerning mode of delivery in HIV/HCV-coinfected pregnant women should be based on standard obstetric and HIVrelated indications alone; HCV coinfection does not necessitate cesarean delivery, if not otherwise indicated (AIII). 98 August 2015 HIV/Hepatitis C Virus Coinfection (4) Infants born to women with HIV/HCV coinfection should be evaluated for HCV infection with anti-HCV antibody testing after age 18 months (AII). Infants who screen positive should undergo confirmatory HCV RNA testing. HCV RNA virologic testing can be done after age 2 months, if earlier diagnosis is indicated (AIII). Because HCV viremia can be intermittent, 2 negative HCV RNA test results at or after age 2 months, including 1 test at or after age 12 months, are needed to definitively exclude HCV infection (BIII). Children are considered to be HCV infected if they have 2 or more positive HCV RNA result results at any age or are HCV antibody positive beyond age 18 months (AII). 99 August 2015 HIV-2 Infection and Pregnancy (1) HIV-2 is endemic in West African countries and in parts of India. It also occurs in France and Portugal with large numbers of immigrants from these regions. It remains rare in the United States. In the United States, 166 cases met CDC criteria for HIV-2 diagnosis between 1998 and 2010. 100 August 2015 HIV-2 Infection and Pregnancy (2) HIV-2 infection should be considered in pregnant women who are from ̶ or have partners from ̶ countries in which the disease is endemic, who have positive results on an HIV-1/HIV-2 antibody or HIV-1/HIV-2 antigen/antibody immunoassay. They should be tested with a supplemental HIV-1/HIV-2 antibody differentiation assay. If they are indeed HIV-2 infected it would show negative HIV-1 antibodies and positive HIV-2 antibodies (AII). 101 August 2015 HIV-2 Infection and Pregnancy (3) 2014 CDC new HIV testing algorithm may enhance the diagnosis of HIV-2. 1st test with HIV-1/HIV-2 antigen antibody combination assay (Abbott Architect HIV Ag/Ab combo assay, BioRad GS Combo Ag/Ab EIA, Alere Determine). If positive, use a FDA approved 2nd generation antibody assay Multispot HIV-1/HIV-2 Rapid Test (BioRad Laboratories) and GeeniuS (Bio-Rad Laboratories). 102 August 2015 HIV-2 Infection and Pregnancy (4) Viral load assays for HIV-2 are not commercially available. University of Washington and NY State Department of Health offer HIV-2 viral load assays. See Guidelines. No validated HIV-2 genotype or phenotype resistance assays are available in the United States but internet tool by European experts available (http://www.hiv-grade.de). All HIV-2 cases should be reported to the state or local health department; they can arrange confirmative HIV-2 testing by CDC. 103 August 2015 HIV-2 Infection and Pregnancy (5) A regimen with 2 NRTIs and a boosted PI is recommended for HIV-2-infected pregnant women who require treatment for their own health because they have significant clinical disease or CD4 count of <500 cells/µL (AIII). Preferred ART regimen for HIV-2-infected pregnant women who require treatment: Lopinavir/ritonavir + ZDV/3TC or ABC/3TC or TDF/FTC (AIII). 104 August 2015 HIV-2 Infection and Pregnancy (6) Optimal prophylactic regimens have not been defined for HIV-2-infected pregnant women who do not require treatment for their own health (i.e., CD4 counts >500 cells/µL and no significant clinical disease). Experts have recommended: 2 NRTIs plus lopinavir/ritonavir for prophylaxis, with the drugs stopped postpartum (BIII); or Zidovudine prophylaxis alone during pregnancy and intrapartum (BIII). 105 August 2015 HIV-2 Infection and Pregnancy (7) NNRTIs and enfuvirtide are not active against HIV-2 and should not be used for treatment or prophylaxis (AIII). All infants born to HIV-2-infected mothers should receive the standard 6-week zidovudine prophylactic regimen (BIII). In the United States, where safe infant formula is readily available, breast-feeding is not recommended for infants of HIV-2-infected mothers (AIII). 106 August 2015 Pregnancy in Women with Perinatal HIV Infection (1) Increasing number of individuals with perinatally acquired HIV now reaching childbearing age and becoming pregnant or fathering children. The components of prenatal care and general principles of cART and HIV management do not differ between pregnant women who were perinatally infected and those who acquired HIV infection in other ways. There are unique challenges related to adherence and risk of ARV resistance due to extensive cART exposure. Consultation with experts in HIV and pregnancy recommended. 107 August 2015 Pregnancy in Women with Perinatal HIV Infection (2) Some studies suggest women with perinatal may have elevated rates of preterm and small-for gestational-age infants compared to women with horizontal HIV infection, but this was not seen in all studies. Data are limited. When appropriate ART and prenatal management occurs and optimal viral load suppression is attained, the risk of perinatal transmission does not appear to be increased. Pregnancy may create additional burdens in the transition from pediatric/adolescent to adult care. Developmentally appropriate adherence counseling and counseling for reproductive health and pregnancy prevention are important. 108 August 2015 Acute HIV Infection (1) When acute retroviral syndrome is suspected in pregnancy or during breast-feeding, a plasma HIV RNA test should be obtained in conjunction with a routine HIV antibody test or an antigen/antibody immunoassay test (AII). Repeat HIV antibody testing during the 3rd trimester is recommended for pregnant women with initial negative HIV antibody test results who are (AII): known to be at risk of acquiring HIV. receiving care in facilities that have an HIV incidence among pregnant women of at least 1 per 1,000 per year. are incarcerated. reside in jurisdictions with elevated HIV incidence. 109 August 2015 Acute HIV Infection (2) All pregnant women with acute or recent HIV infection should start a combination ARV regimen as soon as possible to prevent perinatal transmission, with the goal of suppressing plasma viral load to below detectable levels (AI). In women with acute HIV infection, baseline genotypic resistance testing should be performed simultaneously with initiation of the combination ARV regimen, and the ARV regimen should be adjusted, if necessary, to optimize virologic response (AIII). Because clinically significant resistance to PIs is less common than resistance to NNRTIs in ARV-naive individuals, an RTVboosted PI-based regimen should be initiated (AIII). 110 August 2015 Acute HIV Infection (3) Primary or acute HIV infection during pregnancy or breast-feeding is associated with increased risk of transmission. Counsel all pregnant or breast-feeding women about prevention of HIV. Reinforce importance of using condoms. Consider the use of pre- or postexposure ARV prophylaxis for those whose partners are HIV infected. Maintain a high level of suspicion for acute HIV in women who have a compatible clinical syndrome, even if highrisk behaviors are not reported. 111 August 2015 AIDS Education and Training Center National Coordinating Resource Center INTRAPARTUM CARE Intrapartum ARV Therapy/Prophylaxis (1) Women should continue their antepartum combination ARV drug regimen on schedule as much as possible during labor and before scheduled cesarean delivery (AIII). Intravenous (IV) ZDV should be administered to HIVinfected women with VL >1,000 copies/mL (or unknown VL) near delivery (AI), but is not required for HIV-infected women receiving cART regimens who have VL ≤1,000 copies/ mL consistently during late pregnancy and near delivery and no concerns regarding adherence to the regimen (BII). 113 August 2015 Intrapartum ARV Therapy/Prophylaxis (2) Scheduled cesarean delivery at 38 weeks’ gestation (compared to 39 weeks for most indications) is recommended for women who have HIV RNA >1,000 copies/mL near delivery (AI). Women who present in labor with unknown HIV status should undergo expedited HIV testing (AII). If positive result: Do a confirmatory HIV test ASAP and initiate maternal (IV ZDV) and infant (combination ARV prophylaxis) ARV drugs pending results of the confirmatory test (AII). If the maternal confirmatory HIV test result is positive, infant ARV drugs should be managed as discussed under Infant ARV Prophylaxis (AI); if the maternal confirmatory result is negative, maternal and infant ARV drugs should be stopped. 114 August 2015 Intrapartum ARV Therapy/Prophylaxis (3) The additional benefit of IV ZDV in women on cART regimens has not been evaluated in randomized studies. In nonrandomized studies of women on cART, addition of intrapartum ZDV appears to reduce risk of perinatal transmission if HIV RNA is not consistently suppressed to <1,000 copies/mL near time of delivery. 115 August 2015 Transmission and Mode of Delivery (1) Scheduled cesarean delivery at 38 weeks’ gestation to minimize perinatal transmission of HIV is recommended for women with HIV RNA levels >1000 copies/mL or unknown HIV levels near the time of delivery, irrespective of administration of antepartum antiretroviral drugs (AII). 116 August 2015 Transmission and Mode of Delivery (2) For pregnant women receiving cART with HIV RNA levels <1,000 copies/mL : Scheduled cesarean delivery is not routinely recommended due to the low rate of perinatal transmission in this group and the potential for increased complications following cesarean delivery in HIV-infected women (AII). C-sections performed for standard obstetrical indications should be scheduled for 39 weeks’ gestation (AII). 117 August 2015 Transmission and Mode of Delivery (3) Because there is insufficient evidence to determine whether cesarean delivery after rupture of membranes or onset of labor reduces the risk of perinatal HIV transmission, management of women originally scheduled for cesarean delivery who present with ruptured membranes or in labor must be individualized at the time of presentation (BII). Consultation with an expert in perinatal HIV (e.g., telephone consultation with the National HIV/AIDS Clinician Consultation Center at (888)448-8765) may be helpful in rapidly developing an individualized plan. 118 August 2015 Transmission and Mode of Delivery (4) Women with HIV infection should be counseled that HIV infection may put them at higher risk of surgical complications of cesarean delivery (AII). If unscheduled cesarean delivery is performed and IV ZDV administration is indicated (HIV RNA > 1,000 copies/mL), consider shortening the interval between initiation of IV ZDV and delivery. Some experts recommend proceeding with delivery after giving the loading dose of IV ZDV. 119 August 2015 Other Intrapartum Management Considerations (1) The following should generally be avoided because of a potential increased risk of transmission, unless there are clear obstetric indications: Artificial rupture of membranes (BIII). Routine use of fetal scalp electrodes (BIII). Operative delivery with forceps or vacuum extractor and/or episiotomy (BIII). 120 August 2015 Other Intrapartum Management Considerations (2) Consider the ARVs a woman is receiving when treating excessive postpartum bleeding resulting from uterine atony: If receiving a cytochrome (CYP) 3A4 enzyme inhibitor (e.g., a PI), use methergine only if no alternative treatments are available and the need for pharmacologic treatment outweighs the risks. If methergine is used, it should be administered in the lowest effective dose for the shortest possible duration (BIII). If receiving a CYP3A4 enzyme inducer such as NVP, EFV, or etravirine, additional uterotonic agents may be needed because of the potential for decreased methergine levels and inadequate treatment effect (BIII). 121 August 2015 AIDS Education and Training Center National Coordinating Resource Center POSTPARTUM CARE Postpartum Care (1) Decisions about continuing cART should be made in consultation with the woman and her HIV provider, ideally before delivery. cART is recommended for all HIV-infected individuals to reduce the risk of disease progression and to prevent sexual HIV transmission (AIII). Take into account current recommendations for the initiation of cART in adults, HIV RNA levels, adherence issues, whether a woman has an HIV-uninfected sex partner, and patient preferences. 123 August 2015 Postpartum Care (2) Because the immediate postpartum period poses unique challenges to antiretroviral adherence, arrangements for new or continued supportive services should be made before hospital discharge for women continuing cART (AII). Counsel women about the challenge of adherence in the postpartum period. Remain vigilant for signs of depression, intimate partner violence, and drug or alcohol use. Consider simplifying cART regimens to improve adherence. 124 August 2015 Postpartum Care (3) Contraceptive counseling should be a critical aspect of postpartum care (AIII). Ideally contraception will also have been addressed in the prenatal period. Lack of breastfeeding is associated with earlier return of fertility. Women may be at risk of pregnancy shortly after delivery. Ovulation occurs as early as 6 weeks postpartum, even before return of menses. Encourage dual-protection strategy of condom use plus a second highly effective contraceptive Review possible drug interactions of specific ARV drugs with hormonal contraceptives before prescribing Encourage safer sex practices and secondary transmission prevention. 125 August 2015 Postpartum Care (4) Women with a positive rapid HIV antibody test result during labor require immediate linkage to HIV care and comprehensive follow-up including confirmation of HIV infection. If infection confirmed, the following are indicated (AII): 126 Full health assessment, Evaluation for associated medical conditions, Counseling related to HIV diagnosis, Assessment of need for cART and opportunistic infection prophylaxis. August 2015 Postpartum Care (5) Breast-feeding is not recommended for HIVinfected women in the United States (AII). cART dramatically reduces but does not eliminate breast milk transmission. Safer infant feeding options are available. Other potential risks include toxicity to the neonate or ARV resistance should transmission occur due to variable passage of ARV drugs into breast milk. Health care providers should routinely inquire about premastication, instruct HIV-infected caregivers against this feeding practice, and advise on safer feeding options. 127 August 2015 AIDS Education and Training Center National Coordinating Resource Center CARE OF THE NEONATE Infant Antiretroviral Prophylaxis (1) A 6 week neonatal ZDV prophylaxis regimen is generally recommended for all HIV-exposed neonates to reduce perinatal transmission of HIV (AI). However, a 4-week neonatal zidovudine prophylaxis regimen can be considered for full-term infants when: The mother has received standard cART during pregnancy with consistent viral suppression, and There are no concerns related to maternal adherence (BII). 129 August 2015 Infant Antiretroviral Prophylaxis (2) ZDV, at gestational age-appropriate doses, should be initiated as close to the time of birth as possible, preferably within 6 to 12 hours of delivery (AII). Infants at higher risk of HIV acquisition should receive prophylaxis with ZDV and NVP. This includes infants born to women who: received only intrapartum ARV drugs (AI), or have not received antepartum or intrapartum antiretroviral drugs (AI), or have received antepartum ARV drugs but have had suboptimal viral suppression (>1000 copies/mL) near delivery (BIII). 130 August 2015 Infant Antiretroviral Prophylaxis (3) The prophylaxis regimen for infants at higher risk of HIV acquisition: ZDV for 6 weeks combined with 3 doses of NVP in the first week of life 1st dose at birth 2nd dose 48 hours later 3rd dose 96 hours after the second dose. Begin regimen as soon as possible after birth. 131 August 2015 Infant Antiretroviral Prophylaxis (4) Some experts recommend triple-ARV prophylaxis for infants at higher risk of HIV acquisition although there are no data demonstrating improved efficacy for a three-drug regimen over a two-drug regimen in prevention of transmission. A decision to administer triple-ARV prophylaxis should be made only in consultation with a pediatric HIV specialist, preferably before delivery, and should be accompanied by parental counseling on the potential risks (e.g., neonatal toxicity), and benefits (e.g., prevention of perinatal transmission) of this approach (BIII). 132 August 2015 Infant Antiretroviral Prophylaxis (5) In the United States, the use of antiretroviral drugs other than zidovudine and nevirapine cannot be recommended in premature infants as prophylaxis to prevent transmission because of lack of dosing and safety data (BIII). For additional information refer to the Pediatric Antiretroviral Guidelines, Specific Issues in Antiretroviral Therapy in Neonates. The Clinician Consultation Center (1-888-4488765) provides free clinical consultation on all aspects of perinatal HIV, including infant care. 133 August 2015 Infant Antiretroviral Prophylaxis (6) For infants born to mothers with unknown HIV status: Conduct expedited HIV testing of mothers and/or infants as soon as possible, either during labor or after birth, with immediate initiation of infant antiretroviral prophylaxis if the initial expedited test is positive (AII). If supplemental testing is negative, antiretroviral prophylaxis can be discontinued. See Diagnosing HIV Infection in Infants 134 August 2015 Infant Antiretroviral Prophylaxis (7) Infants born to mothers with known or suspected ARV-resistant virus: Optimal ARV prophylaxis regimen for newborns is unknown. Consult with a pediatric HIV specialist or with the Clinician Consultation Center before delivery. Even with maternal ZDV resistance, a 6-week course of infant ZDV is recommended. Thee is no evidence that prophylactic regimens customized based on maternal drug resistance are more effective than standard regimens. 135 August 2015 Short-Term ARV Safety in Neonatal Prophylaxis (1) ZDV: transient hematologic toxicity (mainly anemia). 3TC: in combination with ZDV may cause more severe anemia and neutropenia. TDF and FTC: limited data on dosing and safety not well defined; not recommended for infant prophylaxis. NVP: no cases of severe rash or hepatotoxicity with neonatal prophylaxis. Resistance may occur in infants who become infected despite prophylaxis. 136 August 2015 Short-Term ARV Safety in Neonatal Prophylaxis (2) PIs: not recommended for infant prophylaxis during the first few weeks of life due to lack of dosing and safety data – see also Pediatric ARV guidelines. In addition, LPV/r solution contains 42.4% alcohol and 15.3% propylene glycol. It should not be administered before a postmenstrual age (first day of the mother’s last menstrual period to birth plus the time elapsed after birth) of 42 weeks and a postnatal age of at least 14 days. RAL: Only integrase inhibitor with a pediatric formulation but not FDA-approved for use in infants aged <4 weeks or weight <3 kg. Not recommended until adequate PK and safety data are available. 137 August 2015 Initial Postnatal Management of the HIVExposed Neonate (1) Obtain a CBC with differential as a baseline evaluation before initiation of ARV prophylaxis (BIII). Decisions about the timing of subsequent hematologic monitoring is based on (CIII): 138 Baseline values, Gestational age and clinical condition of infant, ZDV dosage administered, Receipt of other ARV drugs, Concomitant medications, Maternal ARV regimen. August 2015 Initial Postnatal Management of the HIVExposed Neonate (2) Consider more frequent monitoring for infants exposed to combination ARV regimes in utero or neonatally: 139 CBC, Serum chemistry, Liver function, Bilirubin levels (ATV exposure). August 2015 Initial Postnatal Management of the HIVExposed Neonate (3) For infants receiving combination ZDV/3TC-containing ARV prophylaxis regimens: Hemoglobin and neutrophil counts should be remeasured 4 weeks after initiation of prophylaxis (A1). 140 August 2015 Initial Postnatal Management of the HIVExposed Neonate (4) If hematologic abnormalities are identified, decisions on whether to continue infant ARV prophylaxis need to be individualized. Consultation with an expert in pediatric HIV infection is advised if early discontinuation of prophylaxis is considered (CIII). Considerations about whether to continue ARV prophylaxis include: Extent of abnormality, Related symptoms, Duration of infant ARV prophylaxis, Risk of HIV infection. May consider reducing ARV prophylaxis to 4 weeks when mother has received cART with consistent viral suppression and there are no adherence concerns. 141 August 2015 Initial Postnatal Management of the HIVExposed Neonate (5) Routine measurement of serum lactate is not recommended unless infant develops severe clinical symptoms of unknown etiology. (CIII) Particularly neurologic symptoms. In symptomatic infants with significantly abnormal serum lactate levels (>5 mmol/L): Discontinue ARV prophylaxis. Consult a pediatric HIV specialist for alternative prophylaxis. 142 August 2015 Diagnosing HIV Infection in Infants (1) Diagnostic HIV tests for infants: Use HIV nucleic acid amplification virologic assays (e.g., HIV DNA and RNA PCR) (AII). Maternal HIV antibodies cross placenta and are detectable in HIV-exposed infants for up to 18 months. Standard antibody tests cannot be used to diagnose HIV infection in infants. 143 August 2015 Diagnosing HIV Infection in Infants (2) Virologic tests should be performed at (AII): 14-21 days, 1-2 months, and 4-6 months. Virologic test may be performed at birth: If mother did not have good virologic control during pregnancy, or If adequate follow-up cannot be assured. Confirm a positive HIV virologic test with a second virologic test on a different specimen. 144 August 2015 Diagnosing HIV Infection in Infants (3) HIV infection in an infant is diagnosed by 2 positive virologic tests on separate specimens. Some experts prefer to use HIV DNA assays (rather than HIV RNA) for infant HIV diagnosis, although the effects of maternal or infant ARV exposure on the sensitivity of virologic testing—particularly HIV RNA assays—are unknown. 145 August 2015 Diagnosing HIV Infection in Infants (4) HIV infection is excluded: Presumptively by 2 negative virologic tests, 1 at age ≥14 days and 1 at age ≥1 month. Definitively (in non-breast-fed infants) by 2 negative virologic tests, 1 at age ≥1 month or older and 1 at age ≥4 months. Many experts confirm negative status by antibody testing at 12-18 months (HIV antibodies can sometimes occur at or beyond 18 months). Diagnosis of non-subtype-B HIV may be difficult: see Pediatric ARV Guidelines. 146 August 2015 Postnatal Management of the HIV-Exposed Neonate: Prophylaxis and Immunizations To prevent Pneumocystis jirovecii pneumonia (PCP), prophylaxis should begin at age 4-6 weeks, after completion of ARV prophylaxis (AII). Unless HIV infection can be presumptively excluded Evaluate and treat infants as indicated for transmittable maternal coinfections identified through history or physical evaluation. HIV-exposed infants should follow the routine immunization schedule. 147 August 2015 Infant Feeding Practices and Risk of HIV Transmission To prevent HIV transmission, HIV-infected women in the U.S. should not breast-feed. Safe infant feeding alternatives are available. ART may decrease free HIV virus in breast milk, but cellassociated virus remains and may pose transmission risk. Feeding with premasticated foods may transmit HIV. Health care providers should routinely inquire about premastication and Instruct HIV-infected caregivers to avoid this practice, and Advise on safer feeding options (AII). 148 August 2015 Long-Term Follow-Up of Infants Exposed to ARVs (1) Data on the long term risks of in utero and neonatal ARV exposure are insufficient, but the balance of evidence is reassuring. However, there are concerns that exposure may have long-term effects. Children with in utero or neonatal exposure to ARVs who develop significant organ system abnormalities of unknown etiology, particularly of the nervous system or heart, should be evaluated for mitochondrial dysfunction (CIII). 149 August 2015 Long-Term Follow-Up of Infants Exposed to ARVs (2) It is important that the long-term medical record of an uninfected child includes information about ARV exposure, should unusual symptoms develop later in life, or if adverse late effects of HIV or ARV exposure in uninfected children are identified in the future. 150 August 2015 AIDS Education and Training Center National Coordinating Resource Center APPENDICES Appendices Appendix A. Review of Clinical Trials of Antiretroviral Interventions to Prevent Perinatal HIV Transmission Includes a table of major studies and results. Appendix B. Safety and Toxicity of Individual Antiretroviral Agents in Pregnancy Summarizes and presents available data from human and animal studies. Pharmacokinetics, placental and breast milk passage, teratogenicity, safety. 152 August 2015 ARV Pregnancy Registry (APR) (1) The APR collects observational, nonexperimental data on ARV drug exposure during pregnancy for the purpose of assessing the potential teratogenicity of these drugs. It is strongly recommended that health care providers treating HIV-infected pregnant women and their infants report cases of prenatal exposure to ARV drugs to the APR. The registry does not use patient names and birth outcome follow-up is obtained from the reporting physician by registry staff. 153 August 2015 ARV Pregnancy Registry (APR) (2) Report cases of prenatal exposure to ARV drugs (either alone or in combination) to: ARV Pregnancy Registry Research Park 1011 Ashes Drive Wilmington, NC 28405 (T) 1-800-258-4263 (F) 1-800-800-1052 http://www.APRegistry.com 154 August 2015 Websites to Access the Guidelines http://www.aidsetc.org http://aidsinfo.nih.gov 155 August 2015