Special issues facing individuals with myeloproliferative neoplasms

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Symptoms and Special

Circumstance in MPNs

2014 Florida Patient Symposium

Laura C. Michaelis, MD

Medical College of Wisconsin, Milwaukee

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Spectrum of

Symptoms

– “clinical conditions with high relevance for the duration and quality of the patient’s life, but with limited evidence to support sound diagnostic and therapeutic recommendations…”

– Tiziano Barbui. 2010

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EMD

• Spleen

Catabolic

State

• Fatigue,

Weight loss

Clone

Cytokines

• Fevers, fatigue,

NS

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Dyspoesis

• Clotting,

Bleeding

Milwaukee

Spectrum of Symptoms

• Day-to-Day

– Fatigue, Itching, Night sweats, Bone Pain,

Fevers, Bleeding, Erythromelagia

• Life-Threatening

– Arterial and Venous Clots, Bleeding

• Medication Associated

– Side Effects, Anxieties, Financial

• Special Circumstances

– Surgery, Contraception and Pregnancy

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0,5

0,4

0,3

0,2

0,1

0

0,9

0,8

0,7

0,6

Heterogeneous Presentations:

Symptoms

Polycythemia Vera

N=405

Essential

Thrombocythemia N=304

Primary Myelofibrosis

N=456

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Mesa, Cancer 2007

Milwaukee

Risks and Benefits

Sx of

Disease

SX of

Disease

Tox

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TX

Milwaukee

Case #1: Denise

• 46 yo woman with newly diagnosed PV

– History of a blood clot in the left leg following her last pregnancy, 8 years ago

– She has had 5 phlebotomies since diagnosis and her

CBC demonstrates good control of her blood counts

– She has been allergic to aspirin since childhood

• She tells you: I’m still having a lot of itching after showering

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Aquagenic pruritus

• Often occurs with PV

– Stinging, itching – often after contact with water

– Majority of patients experience it

• Recent German study demonstrated 68% of

PV patients reported about pruritus

• Can be relentless and may not always respond to treatment for the disease

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Treatment options for Pruritis

• Symptom-Oriented

– Antihistamines

– Paroxetine

– Light therapy

– Aprepitant

• Disease-Oriented

– Cytoreduction: HU or IFN

– Jak-Stat Pathway therapy

– Aspirin

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Case #2: Carla

• 64 yo woman with ET

– Diagnosed after a stroke at the age of 55

– Blood numbers are under good control

– Taking HU to control platelet count

• But

“I’m so tired at night – especially after eating.”

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Managing MPN Fatigue

• Symptom-Oriented

– Exercise (low-intensity as good as high intensity)

– Healthy Lifestyle and Diet

– Correction of Iron Deficiency When Possible

– Stimulants: Ritalin/Provigil/ Nuvigil

• Disease Treatment

– JAK2 Inhibitors

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Spleen-Related Symptoms:

N=1433

Prevalence

80%

70%

60%

50%

40%

30%

20%

10%

0%

PV

ET

MF

Severity

3,5

3

2,5

2

1,5

1

0,5

0

PV

ET

PMF

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Scherber Blood 2011

Milwaukee

COMFORT-1: Symptoms

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Case #3: Jessica

• 42 yo mother

• Essential

Thrombocythemia

• Diagnosed on routine blood testing at GYN office

• No risk factors

• WBC 12.3; Hgn 13;

Plts 560

• 1.5 years after diagnosis, reports

“foot pain.”

• Occurs when walking or standing on her feet

• Burning, painful, reddish

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Case #3 Jessica

• Erythromelalgia

– Neurovascular pain disorder

– Can occur secondary to ET

– Characterized by severe burning pain and redness

– Can be debilitating

• Treatment

– Aspirin, Cytoreduction

– Gabapentin

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Spectrum of Symptoms

• Day-to-Day

– Fatigue, Itching, Night sweats, Bone Pain,

Fevers, Bleeding, Erythromelagia

• Life-Threatening

– Arterial and Venous Clots, Bleeding

• Medication Associated

– Side Effects, Anxieties, Financial

• Special Circumstances

– Surgery, Contraception and Pregnancy

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Case #4: Gerald

• Gerald S.

– 56 yo man with newly diagnosed

Polycythemia Vera

• Hgn 19.3 gm/dL

• Hct 58%

• WBC 12.4 k/uL

• Plts 338 k/uL

– I recommend phlebotomy and starting a lowdose aspirin. He asks – how many treatments will I need and what’s our goal?

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PV: What is the optimal hematocrit?

January 2013

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Target Hematocrit

365

Hct <45%

BLEEDING

High Hct Low Hct

18/183

9.8%

5/182

2.7%

3 8

5 2

Hct 45-50%

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Case #4: Gerald

• So – answers?

– Phlebotomy goal should be a hematocrit of less than 45%

– In women, generally aim for even lower than that, 42-43%

• Frequency varies – but as often as needed

• Sometimes medication also needed, but you have to give phlebotomy a chance

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Case #5: Kyle

• 57 yo man with Essential

Thrombocythemia

– Incidentally discovered two years ago

– No symptoms, no history of blood clots

– Platelet count of 1,380 k/uL

– Now with found to occult + stools

– Colonscopy normal, but stomach ulcers noted on endoscopy

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Bleeding vs. Clotting

• Not as common as clotting problems

• Often manifest with

– Nosebleeds

– Gum bleeding

– Menorrhagia

– Less likely to be deep tissue bleeding

• Rarely can be life threatening

• Risk increases with

Platelets>1,000,000/uL

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Normal Blood Vessel

Acquired VWD

Increase in platelets

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Case #5: Kyle

• What can we do about his nose bleeds?

– Normalization of platelet count

– Medication vigilance  combos in particular

• Anagrilide + Aspirin

• Plavix or Aspirin + heparin products

– Predictable bleeding

• i.e. interventions to prevent menorrhagia

– Special care in individuals with gastric ulcers or esophageal varices

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Case #6: Bonnie

• 67 years old with PV

• TIA in her late 50s

• Treatment: HU and aspirin

• Recently diagnosed with small left-sided breast cancer, has opted for mastectomy

• What are my surgical risks?

• Surgery and VTE

• Increased risk for patients with MPN

• Likely due to differences in the

– Blood vessels

– Platelets

– Clotting factors?

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Modifying Surgical Risk

Planning

--Assessment by hematologist

--Optimize blood counts

--Especially platelets if splenectomy planned

Preoperative

--Discontinue ASA

Postoperative

--Anticoagulation – LMWH

--Clinical vigilance re hemorrhage

--US of abdominal veins

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Spectrum of Symptoms

• Day-to-Day

– Fatigue, Itching, Night sweats, Bone Pain,

Fevers, Bleeding, Erythromelagia

• Life-Threatening

– Arterial and Venous Clots, Bleeding

• Medication Associated

– Side Effects, Anxieties, Financial

• Special Circumstances

– Surgery, Contraception and Pregnancy

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Gender-based differences

• Differences between the disease incidence in men and women

• Problems specifically faced by women

• Contraception

• Pregnancy/Fertility

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Cancer: Sex-based differences

Breast

Ovarian

Cervical

Testicular

Prostate

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Cancer: Gender-based differences

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Gender and Cancer

• Does the disease occur more frequently in one sex vs. the other?

– Diagnostic bias?

– Due to exposure?

– Due to genetic predisposition?

• Does the disease behave differently in one sex vs the other?

– Modulated hormones? Gender-based lifestyle differences?

– Interactions that we don’t understand?

• Are there different consequences to the disease or treatment that depend on gender?

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Sex Ratio

Hematologic diseases

Disease

AML

ALL

HD

Multiple Myeloma

CLL

CML

ET

PV

MF

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Male:Female Ratio

1:1

1.3:1.0

1.3:1.0

1.4:1

2:1

3:2

Female Predominance

1.2:1.0

1:1

Milwaukee

25-29 30-50 Over 50 years

Sex Ratio: MPN

More women diagnosed than men

All MPNs

Essential

Thrombocythemia

More men diagnosed than women

Cartwright et al.

British Journal of Hematology 2002, 118 1071-1077

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Clinical Trial Inclusion

Trial

Total

Patients

HU in High-Risk ET

NEJM 1995

ASA in PV

NEJM 2004

HU vs Anagrilide in high-risk

ET

NEJM 2005

Ruxolitinib in MF (US Study)

NEJM 2012

114

518

809

309

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Male Female

37

(32%)

308

(59%)

342

(42%)

167

(54%)

77

(68%)

210

(41%)

467

(58%)

142

(46%)

Milwaukee

Case #7: Jennifer

• 37 yo woman with a history of thrombosis in her right calf while on birth control

• Found to have JAK2 mutation and a slightly elevated platelet count

• She asks you:

did the birth control or ET cause the blood clot? Can she take birth control again? Can she try and get pregnant?

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Challenges: Clotting

• ET – most common MPN in fertile women

• Hormonal contraception +

ET = hypercoaguable state

• Pregnancy + ET = hypercoaguable state

• Thrombosis -- #1 cause of maternal death

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Challenges: Fertility

• Contraception

– Combination hormones

>progesterone only OCPs

– General population have a 3–6-fold increased risk of venous thrombosis with OCPs

• One retrospective study of >300 patients. Subset on OCPs

– ET + OCPs = 23% VTE

– ET no OCPs = 7% VTE

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Challenges: Pregnancy

• Pregnancy outcomes likely impacted

– Live birth rate 50-70%

– First trimester loss 10-20%

– Late pregnancy loss 10%

– Increased rates of placental abruption, intrauterine growth restriction

• Can we change those outcomes?

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Preconception Counseling

• Risk Assessment

– Prior VTE or arterial clot

– Prior hemorrhage

– Prior pregnancy complication

– Diabetes or Hypertension requiring treatment

– Platelet count of >1500 X 10 9 before or during pregnancy

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Preconception Counseling

• Multidisciplinary approach

• Discussion of teratogenic drugs

• Therapeutic options

– Aspirin

– LMWH

– Cytoreductive therapy

• Delivery and post-partum plan

• Breastfeeding information

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Pregnancy: Low-Risk Patients

Antiplatelet agents  reduce risk of VTE in ET patients

Pregnancy is thrombotic

Aspirin is likely safe in pregnancy (APLA pts)

• Generally

– Continue low-dose aspirin

– Monitor platelet or Hct

• Keep HCT under 45%

• Consider venesection if necessary

– Increased plasma volume of pregnancy means no set targets

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Pregnancy: High-risk patients

• Remove possible teratogeneic drugs

– Taper off hydrea or anagrilide 3-6 months prior to conception

– Hydrea likely contraindicated, men and women

– Anagrilide crosses the placenta

• Cytoreduction

– Interferon-alpha -- Case reports indicating likely safe

• Prevent Clotting

– LMWH

– Prophylactic or, in some cases, therapeutic doses

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Summary and Conclusions

• Some symptoms can be addressed with a palliative approach

• Some require that the disease be treated

• Target Hgn, PV

• Preventing Bleeding

• Undergoing Surgery

• Gender-specific issues: Contraception, Fertility and Pregnancy

• Modifying risk – lifelong effort for all patients

– Cholesterol, Blood pressure, SMOKING

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Outcomes:

Venous, Arterial

Events like stroke, heart attack, VTE, bleeding

Exercise

HTN control

MPN

Smoking lipids DM

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Healthy

Weight

Milwaukee

Conclusions

• Get involved in your care

– Partner with your physician

– Educate other physicians, care-providers

• Ask questions

• Participate in clinical trials

• Control what you can

• Any questions?

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Thank yous to

All the patients

Ann Brazeau

MPN Research Foundation

The Chicago MPN

Roundtable

Jamile Shammo

Toyosi Odenike

Brady Stein

Damiano Rondelli

My mentors

Wendy Stock

Richard Larsen

Patrick Stiff

Sucha Nand

Mary Horowitz

Ruben Mesa

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