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Michael J. Mauro, MD Leader, Myeloproliferative Neoplasms Program Memorial Sloan Kettering Cancer Center, New York, NY Cardiotoxicities of Tyrosine Kinase Inhibitors to Treat CML and CLL: Heart Attacks, Strokes, and Atrial Fibrillation Oh My!
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  • Michael J. Mauro, MDLeader, Myeloproliferative Neoplasms Program

    Memorial Sloan Kettering Cancer Center, New York, NY

    Cardiotoxicities of Tyrosine Kinase Inhibitors to Treat CML and CLL: Heart Attacks, Strokes, and Atrial Fibrillation Oh My!

    PresenterPresentation NotesPatients with BCR-ABL1 values >10% at 3 months had better outcomes if the BCR-ABL1 halving time was ≤76 days. Among the 95 patients with BCR-ABL1 values >10%, the 74 patients with a halving time of ≤76 days had significantly superior (A) OS, (B) PFS, (C) FFS, and (D) MMR compared with the 21 patients with a halving time of >76 days. For some of the patients with an assigned halving time of >76 days, their BCR-ABL1 value did not halve at any time or increased. The outcome for patients with BCR-ABL1 values ≤10% at 3 months are also plotted.

  • Disclosures:

    • Consultant, Advisory Board Member:– Novartis, Bristol Myers Squibb, Takeda, Pfizer

    • Clinical Trial Steering Committee:– Novartis, Bristol Myers Squibb, Takeda

    • Clinical Trial Funding (to Institution, MSKCC):– Novartis, Bristol Myers Squibb, Sun Pharma

    PresenterPresentation NotesPatients with BCR-ABL1 values >10% at 3 months had better outcomes if the BCR-ABL1 halving time was ≤76 days. Among the 95 patients with BCR-ABL1 values >10%, the 74 patients with a halving time of ≤76 days had significantly superior (A) OS, (B) PFS, (C) FFS, and (D) MMR compared with the 21 patients with a halving time of >76 days. For some of the patients with an assigned halving time of >76 days, their BCR-ABL1 value did not halve at any time or increased. The outcome for patients with BCR-ABL1 values ≤10% at 3 months are also plotted.

  • Targeted Therapy in Oncologyand the Problem of ‘Late Cardiovascular Events’

    • CLL: Ibrutinib– Atrial Fibrillation, Ventricular Arrhythmias, Bleeding

    • CML: Tyrosine Kinase Inhibitors– Vascular Occlusive Events; Pulmonary Arterial Hypertension

    • Others likely to develop as targeted therapy continues to quickly expand

    • CLL, the most common leukemia, previously was a disease treated expectantly, and ‘best’ (young/fit) with chemotherapy; now high risk pts better treated and ?cure

    • CML has set the paradigm for targeted therapy and is highly treatable and (potentially) functionally curable for all patients– Imatinib and Herceptin development contemporaneous

  • Novel Agents for CLLBCR-associated Kinase and BCL-2 Inhibitors

    Adapted from Niiro H. Nat Rev Immunol 2:945

    • Syk (spleen tyrosine kinase):1. fostamatinib (R935788) 2. entospletinib (GS-9973)

    • Btk (Bruton’s tyrosine kinase):1. ibrutinib (PCI-32765)2. acalabrutinib (ACP-196)3. tirabrutinib (GS-4059)

    • PI3K (phosphatidylinositol 3-kinase):1. idelalisib (GS-1101)2. duvelisib (IPI-145)3. umbralisib (TG-1202)

    mitochondria

    X

    • BCL-2:1. venetoclax (ABT-199)

  • Cumulative Incidence of Discontinuation of Ibrutinib in CLL by Cause

    Woyach J. JCO. 2017; 35:1347.

    Cumulative Incidence 2 Yrs 3 Yrs 4 Yrs

    CLL Progression 5.0% 10.8% 19.1%

    Transformation 7.3% 9.1% 9.6%

    Other Event 18.7% 23.9% 25.0%

  • CMLAt present, five oral kinase inhibitors approved in the US for Ph+ Leukemia:

    a ‘spoil of riches’; more on the way?

    1st Gen. TKI

    2nd Gen. TKIs

    3rd Gen. TKI

    2001Novartis(1st line)

    2007/2010BMS

    (1st, 2nd line)

    2012/2015 IL-YANG:

    (1st, 2nd line)

    2012Pfizer

    (1st, 2nd, 3rd line)

    2012Ariad

    (2nd?/3rd line)

    2007/2010Novartis

    (1st, 2nd line)

    Radotinib (IY5511)

    Imatinib (STI571)

    Dasatinib (BMS354825) Nilotinib (AMN107)

    Bosutinib (SKI606)

    Ponatinib (AP24534)

    4th Gen. TKI (allosteric): ABL001

    South Koreaonly

  • Huang et al, Cancer 118:3123-3127, 2012.Bower H et al, J Clin Oncol 34:2851-57, 2016.

    20000

    40000

    60000

    80000

    100000

    120000

    140000

    160000

    180000

    200000

    2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050

    • Incidence 4700 per year• Age-matched mortality ratio vs

    normal population = 1.50

    • Accounts for increased US population to 410 million in 2050

    Year

    Num

    ber o

    f Cas

    es 10x greatersteady state number

    of CML patients in USby 2050

    CML is an increasingly

    prevalent and survivable cancer

    lifespan

    prevalence

  • Ready for prime time:

    ‘treatment free remission’

    (TKI cessation for patients in

    deep molecular remission)

    100

    80

    60

    40

    20

    0

    0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

    Months from discontinuation of TKI

    EURO-SKI: Survival without loss of MMRn=200; MR4 or greater, >2y (inclusion)Relapses, n=86Relapses within 6 months , n=77

    Saussele S, et al. EHA. 2014: [abstract LB-6214]

    Relapsemol-free survival at 6 months : 61% (54-68)

    Rel

    apse

    free

    sur

    viva

    l

    Cum

    ulat

    ive

    inci

    denc

    e o

    f MR

    Months since stop of imatinib

    • Median time to molecular recurrence: 2.5 mo. (range,0.8 to 22.2)

    • 57 out of the 61 pts restarted TKI (imatinib, n=56; dasatinib , n=1) and 55 achieved 2nd CMR at a median of 4.2 months

    • Median follow-up of 63 mo. : - None of the MR patients have CML progression event

  • Treatment Free Remission in the label for Nilotinibas of 12/22/17

  • Front-line nilotinib in CML: CVEs over time(5y data- ENESTnd)

    Larson RA, et al. J Clin Oncol. 2014;32:5s (suppl; abstr 7073).

  • CLL

    New agents, new problems

  • Ibrutinib in CLL

    • Front-line CLL• Relapsed CLL• Mantle cell lymphoma• Waldenströms

    • Effective in P53mutated disease(high risk)

  • Ibrutinib-associated bleeding

    • Irreversibly binds BTK and TEC kinasesGPVIcollagen / CRP dep’dactivation abolished

    • CLEC-2 signaling inhibited (mediates thrombus stability after platelet adhesion to damaged endothelium)

    • Inhibits GPIb-VWF interaction (tethers plts to injured vessel wall)• Inhibits αIIbβ3 signaling (Fibrinogen-integrin αIIbβ3 induced

    platelet activation)

  • Current understanding of bleeding with ibrutinib use:a systematic review and meta-analysis

    • 22 manuscripts, 4 randomized trials, 2152 pts• Pooled rate of major bleeding- 17 studies: 2.76 per 100 person-

    years (vs 1.9 per 100 for non-ibrutinib therapy)• RESONATE: ibrutinib = 44% vs. ofatumumab = 12%• HELIOS: ibrutinib = 31% vs. placebo = 15%• Acalabrutinib: all grades = 34%; grade >3 = 0%

    Caron F et al, Blood Advances 1:772-78, 2017

    major bleeding

  • Potential Mechanism of AF:AP and APD perturbation by overlapping pathways

    Alexandre J et al Pharmacology and Therapeutics 189 89-103, 2018

  • Ibrutinib AF and Hypertension

    Atrial fibrillation• Ibrutinib = 5% vs. ofatumumab = 1%• Possibly due to ibrutinib metabolism• HELIOS: I + BRi = 7.7% vs. P + BR = 2.4%• RESONATE2: ibrutinib = 7.4% vs chlorambucil = 1%• Acalabrutinib = 3%

    Hypertension• HELIOS: ibrutinib = 10% vs. placebo = 5%• RESONATE2: ibrutinib = 14% vs. chlorambucil = 0%• Acalabrutinib: not reported

  • The risk of atrial fibrillation with ibrutinib use:a systematic review and meta-analysis

    • 20 manuscripts, 4 randomized trials

    • Pooled rate of AF- all studies, 26mo follow-up: 3.3 per 100 person-years (vs 0.84 per 100 for non-ibrutinib therapy)

    • Framingham data: age 65-74, 1-2/100 person yearsLeong DP et al, Blood 128:138-40, 2016

    : R/R MCL, IB vs temsirolimus

    : HELIOS: BR +/- IB in CLL

    : RESONATE: IB vs Ofatumumab in CLL

    : RESONATE-2: IB vs Chlorambucilin CLL

    Surveillance methods? Case definitions? Underestimate? Unmasking preexisting AF?

  • Ventricular Arrhythmias and Sudden Death in Patients Taking Ibrutinib

    • Index cases-> FAERS data for 2y after approval date

    • 13 additional cases (VA) with 6 sudden death– 10/13 no CV history; median age = 61; median 65d after ibrutinib start

    • Clinical trial experience (n~1000): incidence rate 788 events per 100,000 person-years– HELIOS trial: bendamustine/rituximab +/- ibrutinib: 7 vs 0 >Gr3 VA,

    cardiac arrest, sudden death-> 1991 vs 0 per 100,000 person years

    Lampson BL et al Blood 129:2581-84, 2017

  • Honigberg LA. PNAS 2010; 107:13075.

    Activity of Ibrutinib on Other Kinases;Acalabrutinib vs Ibrutinib

    Irreversible Reversible

    Kinase IC50 (nM) Kinase IC50 (nM)BTK 0.46 FGR 2.31

    BLK 0.52 CSK 2.30

    BMX/ETK 0.76 Brk 3.34

    EGFR 5.55 HCK 3.67

    ErbB2 9.40 YES 6.50

    ITK 10.70 FRK 29.20

    JAK3 16.13 LCK 33.24

    TEC 77.76 RET 36.5

    FLT3 73.0

    ABL 86.12

    FYN 96.0

    KinaseACP-196IC50(nM)

    IbrutinibIC50(nM)

    Btk 1.2 0.43

    Tec 29 1.8

    Bmx 39 0.87

    Itk >1000 168

    Txk 291 2.0

    EGFR >1000 5.0

    ErbB2 912 6.2

    ErbB4 13.2 2.7

    Blk >1000 0.10

    Jak3 >1000 48

  • CML

    Trying to avoid collateral damagewhilst headed for functional cure

  • Cardiomyopathy associated with

    imatinib

    Decreased EFMyocyte injury

    Myocyte apoptosis

    Injury via endoplasmicreticulum stress response

    Mediated via c-JunN-terminal kinase

    Kerkela R et al. Nat Med 2006; 12(8):908-16.

  • PAD associated with nilotinib:biochemical and ABI changes

    Kim TD et al. Leukemia 2013; 27:1316-21.

  • PAD associated with nilotinib: clinical impact

    Kim TD et al. Leukemia 2013; 27:1316-21.

  • Summary of VOEs:ponatinib phase I and phase II (PACE) trials

    Treatment-EmergentAdverse Events

    Treatment-EmergentSerious Adverse Events

    All, n/N (%)

    Treatment-Related, n /N (%)

    All, n/N (%)

    Treatment-Related, n/N (%)

    Phase IAll patients (N=81)

    37/81 (46) 7/81 (9) 16/81 (20) 5/81 (6)

    Phase ICML and Ph+ ALL(N=65)

    31/65 (48) 7/65 (11) 14/65 (22) 5/65 (8)

    Phase II (PACE)All patients (N=449)

    109/449 (24) 45/449 (10) 67/449 (15) 27/449 (6)

    27%Dec 2013

    USPI

    Phase I Data as of 26 Sep 2013; PACE Data as of 03 Sept 2013

  • Meta-analysis:imatinib versus subsequent generation TKIs, VOEs

    Douxfils J et al, Lancet Oncology, 2016

  • Montani et al. Circulation. 2012 May 1;125(17):2128-37

    Data from French PH Registry 2006-2010

    Incidence:13/2900 (0.45%)

    8:1 female:male

    Median interval:34 mths (8-48)

    Characterization of PAH with dasatinib:

  • Clinical, functional, and hemodynamic parameters after dasatinibdiscontinuation

    Montani et al. Circulation. 2012 May 1;125(17):2128-37

    •All but 1 pt improved after withdrawal of dasatinib

    •Symptomatic and functional improvement seen but did not return to normal hemodynamics

    •2 pts died from RV failure and SCD

    Other cases reported:• Dumitrescu et al. Eur Respir J. 2011 Jul;38(1):218-20• Rasheed et al. Leuk Res. 2009 Jun;33(6):861-4• Mattei et al. Bone Marrow Transplant. 2009 Jun;43(12):967-8• Hennigs et al. BMC Pulm Med. 2011 May 23;11:30zz

    PresenterPresentation NotesMuestra la evolucion clinica funcional y parametros hemodinamicos luego de discontinuado DASATINIB. A muestra la evolucion clinica. Luego de una media de 15 meses de discontinuado la droga los pts mejoraron per en tres continuaban con sintomas y 2 fallecieron. B evaluacion de la caminta de 6 minutos. Cy D: evaluacion hemodinamica invasiva: La mayoría de los pacientes mejoró después de parar el dasatinib pero ninguno regresó completamente a la normalidad

  • Nilotinib-induced vasculopathy: identification of vascular endothelial cells as a primary target site

    • pro-atherogenic and anti-angiogenic effects in vivo– aortic root plaque– hind limb ischemia – BM microvessel density (n.b. may be treatment effect)

    Hadzijusufovic E et al, Leukemia 2017 epub 9/8/2017

  • Nilotinib-induced vasculopathy: identification of vascular endothelial cells as a primary target site

    Hadzijusufovic E et al, Leukemia 2017 epub 9/8/2017

  • Dasatinib induces lung vascular toxicity and predisposes to pulmonary hypertension

    • serum markers EC injury/dysfunction in vitro, in pt samples

    Healthy ControlCML, no PAH, at DX CML, no PAH, on DAS

    CML, no PAH, on IM

    Guignabert C E et al, J Clin Inv 126(9), 3207-18, 2016

  • Dasatinib induces lung vascular toxicity and predisposes to

    pulmonary hypertension• exaggerated response to

    monocrotaline and chronic hypoxia• Induced apoptosis of pulmonary EC

    Guignabert C E et al,J Clin Inv 126(9), 3207-18, 2016

  • Ponatinib exerts anti-angiogenic effects in the zebrafish and human umbilical vein endothelial cells

    via blocking VEGFR signaling pathway

    • antiangiogenic effect of PON demonstrated by reduction/elimination of intersegmental and subintestinalvessels (ISV / SIV)

    Ai N, et al, Oncotarget 9:62, 31958-70, 2018

    First it was pastrami, now ponatinib too?

  • Ponatinib exerts anti-angiogenic effects in the zebrafish and human umbilical vein endothelial cells

    via blocking VEGFR signaling pathway

    Ai N, et al, Oncotarget 9:62, 31958-70, 2018

  • Ponatinib Activates an Inflammatory Response in Endothelial Cells via ERK5 SUMOylation

    • In cultured human aortic ECs (HAECs) treated with ponatinib– NF-kB/p65 phosphorylation and NF-kB activity– inflammatory gene expression, cell permeability, cell apoptosis– extracellular signal-regulated

    kinase 5 (ERK5) transcriptionalactivity

    – KLF2/4, eNOS– ERK5 SUMOylationtranscriptional activity

    Paez-Mayorga J et al, Front. Cardiovasc Med 06 Sept 2018 (ePUB)Figure adapted from SpringerLink Encyclopedia of Signaling Molecule, 2018 edition

  • Dasatinib reversibly disrupts endothelial vascular integrity by increasing non-muscle myosin II contractility in a ROCK-dependent manner

    • Dasatinib may active ROCK kinase as an off target effect-> EC dysregulation, permeability-> pleural effusions, PAH?

    • Ponatinib potentially thought to have similar effect?

    Kreutzman A et al, Clin Can Res 23(21), 6697-6707, 2017

  • Aphosphoproteomic

    signature in endothelial cells predicts vascular

    toxicity of tyrosine kinase inhibitors

    used in CML

    • HUVEC ‘toxicity’ assessed with in vitro exposure

    Leukocyte Adhesion

    Wound Healing

    Cell Survival Gopal A et al, Blood Advances 2(14) 1680-84, 2018

  • A phosphoproteomic signature in endothelial cells predicts vascular toxicity of tyrosine kinase

    inhibitors used in CML

    • Mass spec study of 96 sentinel phosphopeptides validated to be representative of cellular states in response to drug perturbations

    Gopal A et al, Blood Advances 2(14) 1680-84, 2018

  • What to do?

    a call to action (slow march?)

  • Monitoring on TKI trials:minimal imaging, biochemical assessments

    Entry criteria related to CV/vascular disease:PACE Phase II trial

    Monitoring Schedule:PACE Phase II trial

    Cortes JC, et al, N Engl J Med 2013; 369:1783-1796 (Supplemental Materials)

  • Guidelines at present for management of CV risk:

    work-in-progress

    ‘ABCDE’ Step Approach to CV InterventionA: Awareness of cardiovascular disease signs and symptoms

    A: Aspirin (in select patients)

    A: Ankle-brachial index measurement at baseline and follow-up to document peripheral arterial disease

    B: Blood pressure control

    C: Cigarette/tobacco cessation

    C: Cholesterol (regular monitoring and treatment if indicated)

    D: Diabetes mellitus (regular monitoring, dose of radiation/chemotherapy, and treatment if indicated)

    D: Diet and weight management

    E: Exercise (echocardiogram)

    = Recommended = As clinically indicated Imatinib Bosutinib Dasatinib Nilotinib Ponatinib

    Baseline Assessment Cardiovascular assessment

    Blood pressure check Fasting glucose

    Fasting lipid panel Echocardiogram

    * Electrocardiogram

    Ankle-brachial index 1-month follow up

    Cardiovascular assessment Blood pressure check

    3- to 6-month follow-up Cardiovascular assessment

    Blood pressure check Fasting glucose

    Fasting lipid panel Echocardiogram

    * Electrocardiogram

    Ankle-brachial index *Patients treated with dasatinib should be considered for echocardiogram if cardiopulmonary symptoms are present.

    ‘Complete MolecularRemission’

    ‘Treatment FreeRemission’

    MICVAPADDyslipidemiaDM/Glu Intol

    Barber M, Mauro M and Moslehi J, Blood 2017

  • • Extraction of medical records• Biomarkers: Fasting lipid panel, Homocysteine,

    Insulin, c-peptide, hsTNT, hs-CRP, NT-proBNP, sST2, GD-15, HbA1c, glucose, LOX-1 sequencing

    • Urine for albuminuria• ECG

    • Ankle-brachial Index (ABI)• Coronary calcium scoring• Echocardiography• Cytogenetic and molecular assessments

    Dasatinib cohort

    Imatinib cohort

    Nilotinib cohort

    Newly diagnosed patients with Ph+

    CML-CP aged ≥18 years (N = 200)

    Δ in CV riskΔ in metabolic risk

    CV AEsCML response

    Data Collection

    Cardiovascular (CV) and Metabolic Risk in Patients With Chronic Myeloid Leukemia in Chronic Phase (CML-CP) Receiving First-line BCR-ABL Tyrosine Kinase Inhibitors (TKIs) in the United States (CA180-653)

    CA180-653 (NCT03045120) is a prospective cohort study intended to characterize the impact of imatinib, dasatinib, and nilotinib on CV and metabolic risk factors in patients with newly diagnosed CML-CP in the United States

    ‘dealer’s choice’ of therapy

    during SOC visits

    CA180-653 Study Design

  • Hypertension observed on Ponatinib: warrants monitoring for and intervention…

  • PFA and aggregation studies demonstrate inhibition with

    dasatinib and ponatinib

    Quintas-Cardama A, et al. Blood 2009; 114(2):261-63Neelakantan P et al. Haematologica 2012; 97(9):1444

  • Retrospective analysis of known and novel biomarkers of risk

    • MVA showed cluster of co-existing nilotinib treatment, dyslipidaemia and G allele of LOX-1 polymorphism associated with CV events

    • IVS4-14 G/G LOX-1 polymorphism strongest predictive factor for a higher incidence of CV events in nilotinib patients

    • unbalanced pro-inflammatory cytokines network in nilotinib vs imatinib patients Boccia M et al, Oncotarget, 2016

  • Role of additional markers of clonal hematopoiesis

    Jaiswal S et al, NEJM 371: 2488-98, 2014; Hadzijusufovic E et al, Leukemia 2017 epub 9/8/2017

    Coronary Artery Disease:Traditional RF and ARCH mutations

    ARCH mutations in NIL patients:Association with AOD?

  • Role of additional markers of clonal hematopoiesis

    Jaiswal S et al, NEJM 371: 2488-98, 2014; Hadzijusufovic E et al, Leukemia 2017 epub 9/8/2017

    ARCH mutations in NIL patients:Association with AOD?

  • Questions/Future: ‘Good Problems’

    • Using CML as an example-> ‘functional curable’ cancer but ~5-6y therapy needed (new paradigm), potentially indefinite for many– How to risk stratify, risk mitigate, track AE development?

    • Needed:– Prospective evaluation, rapid engagement for collaboration,

    MOA based research and intervention

    • Cardio-Oncology collaboration will be essential for our success in oncology!

  • Thank you for the kind [email protected]

    212-639-3107

    mailto:[email protected]

    Slide Number 1Slide Number 2Targeted Therapy in Oncology�and the Problem of ‘Late Cardiovascular Events’Slide Number 4Cumulative Incidence of Discontinuation of Ibrutinib in CLL by Cause CML�At present, five oral kinase inhibitors approved in the US for Ph+ Leukemia:�a ‘spoil of riches’; more on the way?CML is an increasingly prevalent and survivable cancerReady for prime time:��‘treatment free remission’��(TKI cessation for patients in deep molecular remission)Treatment Free Remission in the label for Nilotinib as of 12/22/17Front-line nilotinib in CML: CVEs over time�(5y data- ENESTnd)CLLIbrutinib in CLLIbrutinib-associated bleedingCurrent understanding of bleeding with ibrutinib use:�a systematic review and meta-analysisPotential Mechanism of AF:�AP and APD perturbation by overlapping pathwaysIbrutinib AF and HypertensionThe risk of atrial fibrillation with ibrutinib use:�a systematic review and meta-analysisVentricular Arrhythmias and Sudden Death in Patients Taking IbrutinibSlide Number 19CMLCardiomyopathy associated with imatinibPAD associated with nilotinib:�biochemical and ABI changesPAD associated with nilotinib: clinical impactSummary of VOEs:�ponatinib phase I and phase II (PACE) trialsMeta-analysis:�imatinib versus subsequent generation TKIs, VOEs Characterization of PAH with dasatinib:Clinical, functional, and hemodynamic parameters after dasatinib discontinuation �Slide Number 28Nilotinib-induced vasculopathy: identification of vascular endothelial cells as a primary target siteNilotinib-induced vasculopathy: identification of vascular endothelial cells as a primary target siteDasatinib induces lung vascular toxicity and predisposes to pulmonary hypertensionDasatinib induces lung vascular toxicity and predisposes to pulmonary hypertensionPonatinib exerts anti-angiogenic effects in the zebrafish and human umbilical vein endothelial cells via blocking VEGFR signaling pathwayPonatinib exerts anti-angiogenic effects in the zebrafish and human umbilical vein endothelial cells via blocking VEGFR signaling pathwayPonatinib Activates an Inflammatory Response in Endothelial Cells via ERK5 SUMOylation�Dasatinib reversibly disrupts endothelial vascular integrity by increasing non-muscle myosin II contractility in a ROCK-dependent mannerA�phosphoproteomic signature in endothelial cells predicts vascular toxicity of tyrosine kinase inhibitors used in CMLA phosphoproteomic signature in endothelial cells predicts vascular toxicity of tyrosine kinase inhibitors used in CMLWhat to do?Monitoring on TKI trials:�minimal imaging, biochemical assessmentsGuidelines at present for management of CV risk:��work-in-progressCardiovascular (CV) and Metabolic Risk in Patients With Chronic Myeloid Leukemia in Chronic Phase (CML-CP) Receiving First-line BCR-ABL Tyrosine Kinase Inhibitors (TKIs) in the United States (CA180-653)Hypertension observed on Ponatinib: �warrants monitoring for and intervention…PFA and aggregation studies demonstrate inhibition with dasatinib and ponatinibRetrospective analysis of known and novel biomarkers of riskRole of additional markers of clonal hematopoiesisRole of additional markers of clonal hematopoiesisQuestions/Future: ‘Good Problems’Slide Number 49


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