PPT - International AIDS Society-USA

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Antiretrovirals in the

Management of HIV Infection:

Case-Based, Panel Discussion

Eric S. Daar, MD

Professor of Medicine

David Geffen School of Medicine at University of California Los Angeles

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA. IAS –USA

Slide 2 of 42

When to Start: Case 1

– 30 yo white man

– Diagnosed on routine insurance examination

– PMHx remarkable for HTN, diet controlled

– No medications

– Understands treatment issues and wants to begin therapy if you think it is appropriate

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA. Adapted from Mike Saag

Slide 3 of 42

When to Start: Case 1b

– 30 yo white man

– Diagnosed on admission to jail for disorderly conduct

– PMHx remarkable for HTN, diet controlled and paranoid schizophrenia

– Doesn ’t take any medications and doesn’t want to

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 4 of 42

Effect on inflammation in predicting mortality higher in

HIV disease than the general population (SOCA/SCOPE)

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA. Hunt et al CROI 12

Slide 5 of 42

T cell “ activation ” is lower in treated than untreated adults, but consistently higher than “ normal ”

P < 0.001

P < 0.001

80

60

40

20

0

HAART –

Hunt et al JID 2003, PLoS ONE 2011 and unpublished

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 6 of 42

Permanent Loss of CD4 if Wait to Start

• CD4 count increases on sustained suppressive

(<400 c/mL) ARV treatment

(n=655) by baseline count

– >350 cells/mm 3 :

CD4 counts return to near-normal levels

– ≤350 cells/mm 3 : CD4 counts significantly increased but plateau after 4 years below normal range

• Differences in CD4 counts associated with differences in morbidity and mortality

Moore RD, Keruly JC. Clin Infect Dis 2007;44:441-446.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

400

300

200

100

0

Median CD4 Counts Over 6 Years

Stratified by Baseline CD 4 Count

900

800

700

740

500

<200 201 –350 >350

0 1 2 3 4 5 6

Years After Starting HAART

Slide 7 of 42

Reasons to Start Early:

• The Biology

• Association of Inflammation and Disease

• Better Tolerated/Easier to Take

Medications

• Randomized Controlled Trial Data

• Cohort Data

• Irreversible Damage

• Public Health

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 8 of 42

Most New Infections Transmitted by

Persons Who Do Not Know Their

Status account for…

~25%

Unaware of

Infection

~54%

New

Infections

~42%

Aware of

Infection

~46% of New

Infections

Source : G. Marks et al. AIDS 2006

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 9 of 42

HPTN 052

1763 HIV discordant couples

(HIV+ partner CD4 350-550)

886 immediate

HAART

874 delayed

HAART (CD4 250)

All receiving HIV prevention services

1 transmission*

& 3 cases of extrapulmonary TB

27 transmissions*

& 17 cases of extrapulmonary TB

*96% reduction in HIV transmission to HIV-negative partner median follow-up 2 years

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

So ….what is the harm?

Slide 10 of 42

• Destruction of lymphoid tissue

• Inflammation

• Increased cardiovascular events

• Increased incidence of certain malignancies

• Increased ‘ aging ’

• Accelerated cognitive decline

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 11 of 42

When to Start Treatment

Clinical Category

AIDS-defining illness or severe symptoms

CD4 Count

(cells/mm 3 )

Any value

HIV RNA

(copies/mL)

Any value

2/13/13

DHHS

Guidelines

Treat

2012

IAS-USA

Guidelines

Asymptomatic <500 Any value Treat

>500 Any value Treat

Pregnant women

HIV-associated nephropathy

HIV/HBV coinfection when HBV treatment is indicated

Any value

Any value

Any value

Any value

Any value

Any value

Treat

Treat

Treat

*Unless elite controller (HIV RNA <50 copies/mL) or has stable CD4 cell count and low-level viremia in absence of therapy. The IAS-USA guidelines also recommend initiating antiretroviral therapy in HIV-infected patients with active hepatitis C virus infection, active or high risk for cardiovascular disease, and symptomatic primary HIV infection.

DHHS. Available at: http://www.aidsinfo.nih.gov/ContentFiles/AdultandAdolescentGL.pdf.

Revision February 2013; Thompson MA, et al. JAMA. 2012;308:387-402.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 12 of 42

When to Start: Case 2

• 34 yo woman is diagnosed with TB

• As part of evaluation she is found to be HIV+

• Initial lab values

– CD4 82 cells/µL

– VL 76,000 c/mL

• No other significant medical condition

• She is started on 4-drug anti-TB therapy

(including INH and rifabutin)

• Virus is wild-type virus

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 13 of 42

When to Start ARV with Complications

• ARVs within 0-2 weeks of diagnosis

– Infections for which there is no specific treatment (e.g. dementia, cryptosporidium, microsporidium, PML) (AIII)

– Other OIs, e.g. PCP (AI)

• Consider deferring therapy for crypto meningitis

• Tuberculosis

– Within 2 weeks for CD4 <50 cells/uL (AI)

– Within 2-4 weeks for severe symptoms with CD4 50-200

(BI) and >200 cells/uL (BIII)

– Within 8-12 weeks for mild symptoms and 50-500 cells/uL (AI) and >500 cells/uL (BIII)

– Meningitis 2 months (AI) in RLS, perhaps earlier in other settings (CIII)

DHHS. Available at: http://www.aidsinfo.nih.gov/ContentFiles/AdultandAdolescentGL.pdf.

Revision February 2013; Thompson MA, et al. JAMA. 2012;308:387-402.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 14 of 42

A 49 year old asymptomatic man presents to your clinic after recently being diagnosed with HIV

• History of HTN with CrCl ~42 mL/min

• HBsAb+, HCV antibody negative

• CD4 cells repeatedly 700-420 cells/uL

• Plasma HIV RNA 30-50,000 copies/mL

• Not anxious to start antiretrovirals but willing if you think it is necessary

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 15 of 42

Factors to consider in choosing first-line therapy

• Patient’s willingness to commit to therapy

• Baseline resistance

• Efficacy data

• Tolerability

• Convenience

• Comorbid conditions

• Consequences of failure (resistance)

• Since the introduction of potent ARV therapy preferred regimens all include NRTIs + third drug

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Boosted-Protease Inhibitors

Slide 16 of 42

KLEAN 1

(ITT-E, TLOVR)

48 weeks

ARTEMIS 2

(ITT, TLOVR)

96 weeks

CASTLE 3

(ITT, NC=F)

96 weeks

100

80

74

65

66

100

80

74

71

79

100

80

74

68

74

40 40 40

20 20 20 n=434 N=444 n=346 n=343 n=443 n=440

0 0 0

LPV/r

400/100

BID

FPV/r

700/100

BID

LPV/r

QD or

BID

DRV/r

800/100

QD

LPV/r

400/100

BID

ATV/r

300/100

QD

Adapted from: 1. Eron J, et al. Lancet 2006; 368:476-482; 2. Mills A, et al. AIDS May 29, 2009

3. Molina J-M, et al. 48 th ICAAC/46 th IDSA , Washington, DC, 2008. Abst. H-1250d

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

ATV/r vs. EFV

Primary Endpoint

Slide 17 of 42

Daar ES, et al. Ann Intern Med 2011; 154:445-456.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

STARTMRK: RAL vs. EFV

Slide 18 of 42

ITT, NC=F

100

86

81

42 76

80

71

82

79

74

69

67

61

40

20 CD4 Change: RAL +374 vs. EFV +312

Weeks

0

0 12 24 48 72 96 120 144 168 192 216 240

Number of Contributing Patients

Raltegravir 400 mg BID 281 278 279 280 281 281 274 280 281 281 274 279

Efavirenz 740 mg QHS 282 282 282 281 282 282 281 281 282 282 282 279

Rockstroh J, et al, 19th IAC; Washington, DC; July 22-27, 2012; Abst. LBPE19.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 19 of 42

Pooled ECHO and THRIVE: Virologic

Response (ITT-TLOVR)

84.3%

82.3%

Rimsky L, et al. 50 th ICAAC 2010, Boston, MA. Abst. H-1810

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 20 of 42

Pooled ECHO and THRIVE:

Virologic Response (ITT-TLOVR)

Rimsky L, et al. 50 th ICAAC 2010, Boston, MA. Abst. H-1810

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 21 of 42

GS102 & GS103: EVG/COBI/TDF/FTC vs.

EFV/TDF/FTC or ATV/RTV + TDF/FTC

Randomized, Phase III, Double-blind, Double Dummy,

Active-controlled, International Studies

GS 102

~89% men

33% >10 5 c/mL

CD4= ~385 c/uL

Quad QD

EFV/FTC/TDF Placebo QD

EFV/FTC/TDF QD

Treatment Naïve

HIV-1 RNA ≥5,000 c/mL

Any CD4 cell count eGFR ≥70 mL/min

Quad Placebo QD

Quad QD

ATV/r +TDF/FTC Placebo QD

GS 103

~90% men

~41% >10 5 c/mL

CD4= ~370 c/uL

QUAD Placebo QD

ATV/r +TD/FTC QD

48 weeks

Sax P, et al, Lancet 2012: 3 79::2439-48; D eJesus E, et al, Lancet 2012; 379: 2429-38

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

192 weeks

Slide 22 of 42

Study 236-102: Primary Endpoint:

HIV-1 RNA < 50 copies/mL

+3.6%, 95% CI 3.6 (-1.6% to +8.8%)

CD4+ change: Quad +239 vs. EFV +206 c/mm 3 (p=0.009)

No difference by baseline characteristics

Sax P, et al. 19th CROI; Seattle, WA; March 5-8, 2012. Abst. 101.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Study 236-102:

Common Adverse Events

Slide 23 of 42

EFV/FTC/TDF

(n=352)

Quad

(n=348)

Treatment Emergent Adverse Events in ≥ 10% of subjects (%)

Diarrhea

Nausea *

Abnormal Dreams

Fatigue

Insomnia *

^

Upper Respiratory Infection

Headache

23%

21%

15%

14%

14%

12%

9%

Depression

Dizziness ^

Rash #

9%

7%

6%

* p<0.05; ^ p<0.001; # p=0.009

Sax P, et al, Lancet 2012: 3 79::2439-48

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

19%

14%

27%

11%

9%

13%

14%

11%

24%

12%

Slide 24 of 42

Study 236-103: ATV/r vs.

TDF/FTC/COBI/EVG HIV-1 RNA < 50 c/mL

100 92%

90

88%

80

70 Diff: 3.5% (95% CI: -1.0 to 8.0)

74

50

QUAD

ATV/r

40

30

20

10

0

BL 2 4 8 12 16 24

Week

32 40 48

Changes in CD4+ count: Quad +207 vs. ATV/r +211 cells/mm 3 (p=0.61)

No difference by baseline characteristics

D eJesus E, et al, Lancet 2012; 379: 2429-38

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 25 of 42

Study 236-103:

Adverse Events

Diarrhea

Nausea

Upper respiratory infection

Headache

Fatigue

Ocular icterus

Adverse Events > 10% in Either Group

Quad

(n=353)

22%

20%

15%

15%

14%

1%

ATV/r + FTC/TDF

(n=355)

27%

19%

16%

12%

13%

14%

Discontinuation rates due to renal events were identical in both arms (0.3%)

D eJesus E, et al, Lancet 2012; 379: 2429-38

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 26 of 42

TDF/FTC/EVG/COBI vs. EFV or

ATV/r: Lipid changes

P =0.006

P <0.001

P= 0.001

P =0.001

P =0.44

Conclusion: While some lipid fractions better with Quad than EFV or ATV/r, overall differences were modest and unlikely to be of clinical significance.

Sax P, et al, Lancet 2012: 3 79::2439-48; D eJesus E, et al, Lancet 2012; 379: 2429-38

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 27 of 42

EVG/COBI/TDF/FTC vs. EFV or ATV/r:

Creatinine Changes

Conclusion: Cobicistat is associated with reduced active secretion of creatinine in the renal tubules leading to initial rises in creatinine levels.

Sax P, et al, Lancet 2012: 3 79::2439-48; D eJesus E, et al, Lancet 2012; 379: 2429-38

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

A5202: Study Design

Slide 28 of 42

Arm

A

ABC/3TC Placebo QD

HIV-1 RNA ≥1000 c/mL

Any CD4+ count

> 16 years of age

B

C

Stratified by screening HIV-1 RNA

(< or ≥ 100,000 c/mL)

Enrolled 2005-2007 last pt enrolled

D

Followed through Sept 2009, 96 wks after

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 29 of 42

A5202: Time to Virologic Failure in

Patients with HIV RNA >100,000 c/mL

Probability of No Virologic Failure

100

TDF-FTC (26 events)

80

ABC-3TC (57 events)

60

40

20

P<0.001, log-rank test

Hazard ratio, 2.33 (95% CI, 1.46-3.72)

0

0 12 24 36 48 60 72 84 96 108

Weeks since Randomization

No. at Risk

ABC-3TC 398

TDF-FTC 399

363 313

361 321

267

284

222

236

188

204

Sax PE, et al. NEJM 2009;361:2230-2240.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

137

174

87

104

49

65

20

23

ABC/3TC vs. TDF/FTC

Low Viral Load Stratum

Slide 30 of 42

Sax PE, et al. JID 2011: 204:1191-1201.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 31 of 42

HEAT: Virologic Failure by Baseline

HIV-1 RNA (A5202 Efficacy Endpoint)

100

80

60

90

87 87

90 100%

80%

74%

22%

18% ~59%

15%

4%

19%

~37%

18%

40 40%

63%

20 20% 41%

0 0%

<100,000 ≥100,000

ABC/3TC n = 188 205 155 140

≥500,000 c/mL

ABC/3TC

250,000 - <500,000 c/mL

Pappa K, et al. 17th IAC, Mexico City, 2008. Abst. THAB0304.

Young B, et al. 48th ICAAC/46th IDSA, Washington, DC, 2008. Abst. H-1233.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

TDF/FTC

100,000 - <250,000 c/mL

<100,000 c/mL

Slide 32 of 42

Concerns regarding NRTIs

• Conflicting results regarding relationship between ABC and CV events

• TDF-associated with greater decline in bone mineral density

• TDF-associated with variable decline in renal function

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 33 of 42

D HHS Guidelines for Adolescents/Adults:What to Start

Preferred

Regimens

Alternative

Regimens

• EFV/TDF/FTC

• ATV/r + TDF/FTC

• DRV/r (once daily) + TDF/FTC

• RAL + TDF/FTC

[Pregnant Women Only: LPV/r (twice daily) + ZDV/3TC]

• EFV + ABC/3TC

• RPV + (TDF or ABC)/(FTC or 3TC)

• ATV/r or DRV/r + ABC/3TC

• FPV/r or LPV/r (qd or bid) ABC/3TC or TDF/FTC

• RAL + ABC/3TC

• EVG/COBI/TDF/FTC (9/18/12)

Acceptable

Regimens

• EFV or RPV + ZDV/3TC

• NVP + TDF/FTC or ZDV/3TC or ABC/3TC

• ATV + (ABC or ZDV)/3TC

• ATV/r, DRV/r, LPV/r, FPV/r , RAL + ZDV/3TC

• MVC + ZDV or ABC/3TC

• SQV/r + TDF/FTC or ABC/3TC or ZDV/3TC (with caution)

DHHS Guidelines. Available at: http://aidsinfo.nih.gov/contentfiles/lvguidelines/adultandadolescentgl.pdf

. Revision March 27, 2012.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 34 of 42

ART: What to Start

IAS –USA Recommendations, 2012

Component Recommended Regimens

NNRTI plus nRTIs

• Efavirenz/tenofovir/emtricitabine (AIa)

• Efavirenz plus abacavir/lamivudine (AIa) in HLA-B*5701-negative patients with baseline plasma HIV-1 RNA <100,000 copies/mL

PI/r plus nRTIs

• Darunavir/r plus tenofovir/emtricitabine (AIa)

• Atazanavir/r plus tenofovir/emtricitabine (AIa)

• Atazanavir/r plus abacavir/lamivudine (AIa) in patients with plasma HIV-1 RNA <100,000 copies/mL

InSTI plus nRTIs • Raltegravir plus tenofovir/emtricitabine (AIa)

Thompson MA, et al. JAMA. 2012;308(4):387-402

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 35 of 42

A 45 year old African American woman presents to your clinic having been diagnosed with HIV and severe thrush/onychomycosis

• Clinically stable on fluconazole

• History mild depression, diabetes, HTN and dyslipidemia on ACE, metformin, atorvastatin

• Laboratories

– HBsAg and HCV antibody negative

– AST/ALT- 42/82 IU/mL, CrCl~70 mL/min (relatively stable),

HgbA1C=7.1%, UA- 3+ proteinuria

– CD4= 78 cells/uL, HIV-RNA= 219,000 copies/mL

– HIV genotype- WT

• Ready to start antiretrovirals if recommended with no specific concerns regarding various adverse events but would prefer simple regimen

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 36 of 42

Patient starts TDF/FTC/EFV, TMP/SMX and continues other meds. At 2 months CD4 190 cells/uL, HIV RNA 220 copies/mL, but patient has increasing depression and persistent neurologic symptoms thought to be associated with EFV. CrCl is repeatedly ~70 mL/min. She is seeing psych and on antidepressants.

A 45 year old African American woman

• H/O depression, DM, HTN, dyslipidemia, CKD

• CrCl- 70 mL/min with proteinuria

• CD4 nadir= 78 cells/uL and BL HIV RNA 212,000 copies/mL

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 37 of 42

Switch TDF/FTC + EFV to RPV

(N=49)

RPV mean C trough in ECHO/THRIVE

Mills A, et al. 51 st ICAAC; Chicago, IL; September 17-20, 2011. Abst. H2-794c.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 38 of 42

Patient switched to TDF/FTC + ATV/r and continued other meds. After 4 months neurologic symptoms resolved, CD4 250 cells/uL, HIV RNA <40 copies/mL but patient

CrCl has gradually declined (now off TMP/SMX) to 40-45 mL/min with no change in other labs or

UA (glucosuria and proteinuria).

A 45 year old African American woman

• H/O depression, DM, HTN, dyslipidemia, CKD

• CrCl- 40-45 mL/min with proteinuria (HLA-B5701-negative)

• CD4 nadir= 78 cells/uL and BL HIV RNA 212,000 copies/mL

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 39 of 42

D:A:D Study: NRTIs and Risk of MI

1.9

1.5

1.2

1

**

0.8

0.6

Recent Exposure*: yes/no

Cumulative Exposure: per year

ZDV ddI

#PYFU: 138,109 74,407

#MI: 533 331 ddC d4T 3TC ABC

29,676 95,320 153,009 53,300

148 405 554 221

Adjusting for eGFR does not change ABC MI finding:

Adjusted RR 1.89; 95% CI (1.46 – 2.44; P=0.0001)

TDF

39,157

139

* Recent use=current or within the last 6 months.

**Not shown (low number of patients currently on ddC)

Lundgren J, et al. 16th CROI, Montreal, Canada, 2009. Abst. 44LB. Sabin C, et al. Lancet

2008;371:1417-26.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 40 of 42

VA Case Registry: Use of ABC or

TDF in Last Regimen and Risk of MI

2.2

2.0

1.8

1.6

Unadjusted HR of AMI for each PY of exposure to each one of the categories

Adjusted for estimated GFR prior to regimen onset (by MDRD method)

1.4

1.2

1.0

0.8

0.6

0.4

0.2

ABC TDF Both ABC and TDF

NRTI in Last Regimen During Observation Period

Bedimo R, et al. Clin Inf Dis. 2011;53:84-91.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

Slide 41 of 42

Cumulative Exposure to ARVs and Risk of CKD

Tenofovir

Indinavir

Cockcroft-Gault (n=225)

MDRD (n=274)

CKD-EPI (n=258)

INSIGHT def (n=129)

Censoring ATV

Censoring TDF

Censoring boosted PI

Atazanavir

Lopinavir/r

0.9

Mocroft A, et al. AIDS. 2010; 53:1667-78

1.4

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

A5202: ABC/3TC vs. TDF/FTC

Slide 42 of 42

Median Change in Creatinine Clearance p-values: ABC/3TC vs.

TDF/FTC

Wk 48, p=0.83

Wk 96, p=0.14

Wk 48, p<0.001

Wk 96, p<0.001

Week 48

Week 96

TDF/FTC

ABC/3TC ABC/3TC TDF/FTC

N= 191 173

ATV/r

217 191 186 157

EFV

200 178

>25% decr(%): 3 2 7 6 2 3 1 3

Daar ES, et al. Ann Intern Med 2011; 154:445-456.

From ES Daar, MD, at Los Angeles, Ca: April 22, 2013, IAS-USA.

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