Intra-patient Dose Escalation Study to Investigate Safety and Feasibility of Vactosertib in Treating Anemic MPN Patients

NCT04103645 | Terminated Phase 2 Results DMC FDA Drug

• 1 other identifier: 19-06020285
• Study Type: interventional
• Target: 2
• Locations: 1 country
• Sites: 1

Brief Summary

This study assesses the potential of using a TGFβ receptor inhibitor for the treatment of anemic patients with myeloproliferative neoplasms. TGFβ signaling is known to be abnormally high in patients with myeloproliferative neoplasms and it is thought that abnormal TGFβ signals cause many of the problems with blood cell formation in these diseases. The study design allows all patients to receive the study drug, vactosertib. The dose of vactosertib is individualized within a pre-set range based upon its effectiveness and tolerability. A total of up to 37 patients will be treated.

Conditions

Myeloproliferative Neoplasm

Keywords

Anemia

Outcome Measures

Primary Outcomes (8)

• Identify the Safest, Minimally Effective Starting Dose Level for Patients on Tier 1

  The safest minimally effective dose is defined as the lowest dose level for which no dose limiting toxicity (DLT) was observed in Tier 1 AND the lowest dose level for which at least one of the 12 subjects enrolled on Tier 1 meet Criteria for Clinical Benefit

  Baseline to week 16

• Identify Dose Limiting Toxicities (DLTs) in Patients With MPN Enrolled on Tier 1

  Identify the incidence of dose limiting toxicity (DLT) within the first 12 weeks which are defined as: 1. Any non-hematologic grade ≥3 toxicity except for nausea, vomiting or diarrhea lasting 3 days or less 2. Any grade 4 neutropenia of any duration 3. Any grade ≥3 neutropenia that has not recovered to grade ≥2 within 7 days of onset 4. Any grade ≥3 febrile neutropenia 5. Any grade ≥3 thrombocytopenia associated with clinically significant bleeding or requiring platelet transfusion

  Baseline to week 12

• Identify the Maximum Tolerated Dose (MTD) of Vactosertib in Patients With MPN Enrolled on Tier 1

  Identify the Maximum Tolerated Dose (MTD) of vactosertib defined as the highest dose which does not meet the Tier 1 stopping rule. The tier 1 stopping rule is triggered if any patient experiences a Grade 5 dose limiting toxicity within the first 12 weeks of starting vactosertib or if more than five patients experience a dose limiting toxicity at any dose within the first 12 weeks on study.

  Baseline to week 12

• Number of Tier 2 Patients Who Have Achieved Erythropoietic Response as Defined by the International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria

  Number of patients who achieve an erythropoietic response defined by: 1. HGB increase of 1.5g/dL compared to baseline hemoglobin; 2. Reduction in PRBC transfusion rate to ≤ 50% of pre-treatment transfusion rate; or 3. Reduction in PRBC transfusions by ≥ 4 Units over an 8-week period.

  baseline to week 16

• Number of Tier 2 Patients Who Have Achieved Clinical Response in Symptoms as Defined by International Working Group (IWG) Criteria

  Number of patients who have achieved clinical response defined by a reduction in Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) total score by ≥ 50% compared to pretreatment score

  baseline to week 16

• Number of Tier 2 Patients Who Have Achieved Splenic Response in Symptoms as Defined by International Working Group (IWG) Criteria

  Number of patients who have achieved splenic response defined by: 1. Non-palpable spleen when baseline spleen size was 5-10 cm below left costal margin; 2. At least 50% reduction in spleen size when baseline spleen is \> 10 cm below left costal margin 3. At least 35% reduction in spleen size as assessed by US, CT or MRI.

  baseline to week 16

• Identify Dose Limiting Toxicities (DLTs) in Patients With MPN Enrolled on Tier 2

  Identify the number of dose limiting toxicities (DLT) within the first 12 weeks which are defined as: 1. Any non-hematologic grade ≥3 toxicity except for nausea, vomiting or diarrhea lasting 3 days or less 2. Any grade 4 neutropenia of any duration 3. Any grade ≥3 neutropenia that has not recovered to grade ≥2 within 7 days of onset 4. Any grade ≥3 febrile neutropenia 5. Any grade ≥3 thrombocytopenia associated with clinically significant bleeding or requiring platelet transfusion

  baseline to week 12

• Identify the Maximum Tolerated Dose (MTD) of Vactosertib in Patients With MPN Enrolled on Tier 2

  Identify the Maximum Tolerated Dose (MTD) of vactosertib defined as the highest dose which does not meet the Tier 2 stopping rule. The tier 2 stopping rule is triggered if any patient experiences a Grade 5 dose limiting toxicity within the first 12 weeks of starting vactosertib or if more than five patients experience a dose limiting toxicity at any dose within the first 12 weeks on study.

  baseline to week 12

Secondary Outcomes (6)

• Number of Patients in Which a Histological Response is Seen

  16 weeks

• Number of Patients in Which a Molecular Response is Seen

  16 weeks

• Number of Patients in Which a Pharmacodynamic Response is Seen

  16 weeks

• Number of Patients Who Have Experienced Any of the Following: Hematologic Toxicities, Infections, Disease Progression, and Thrombosis Events

  baseline to 16 weeks

• Overall Survival Defined as the Amount of Time a Patient is Alive After Starting Study Treatment

  Week 1 Day 1 to 6 months post treatment discontinuation. This collection period for both subjects on study was over an average duration of 54 weeks.

Study Arms (5)

Tier 1: Vactosertib 50 mg BID

EXPERIMENTAL

Vactosertib intra-patient dose finding cohort.

Drug: Vactosertib

Tier 1: Vactosertib 100 mg BID

EXPERIMENTAL

Drug: Vactosertib

Tier 1: Vactosertib 150 mg BID

EXPERIMENTAL

Drug: Vactosertib

Tier 1: Vactosertib 200mg BID

EXPERIMENTAL

Drug: Vactosertib

Tier 2: Vactosertib

EXPERIMENTAL

Drug: Vactosertib

Interventions

Vactosertib DRUG

50 mg BID This drug is a TGF-Beta receptor type 1 inhibitor, by inhibiting phosphorylation of the ALK5 substrates SMAD2 and SMAD3. This inhibition could promote regeneration of normal human stem cells and proliferation of erythroid progenitors to treat the underlying hypoproliferative anemia in advanced MPNs.

Also known as: TEW-7197

Tier 1: Vactosertib 50 mg BID

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients who meet the WHO 2016 criteria for a Ph-neg MPN (including PV, ET, MF, MDS/MPN, MPN-U).
• Patients with MF must have DIPSS+ Intermediate or High-risk MF (primary of post-PV/ET).
• For patients receiving cytoreductive therapy, they should be on a stable dose of current cytoreductive therapy for at least 3 months prior to C1D1.
• Anemia as defined by HGB \< 10 g/dL, or transfusion of ≥ 2 packed red blood cell (PRBC) unit within the past 4 weeks with HGB ≤8.5g/dL.
• Ineligible, unsuitable or refractoriness to ESA therapy defined as any of the following:
• Serum erythropoietin (EPO) \>125 U/L.
• Proven ESA unsuitability is defined by history of any of the following:
• Loss of erythroid hematologic improvement while receiving stable or increased ESA dose; or
• ESA-attributed toxicity that, in the treating physician's opinion, makes ESA therapy unsuitable for subject.
• ESA refractoriness defined by lack of erythroid hematologic improvement to ESA:27
• Less than 1.5 g/dL increase in hemoglobin after at least 6 weeks of ESA therapy; or
• Ongoing transfusion dependence that has not been reduced by \> 4U over an 8-week period compared to ESA pre-treatment 8 weeks.
• Acceptable Cardiovascular status

You may not qualify if:

• Any other serious medical condition which in the Investigator's opinion would preclude safe participation in the study.
• Patients with history of TIA or stroke within the past 12 months are excluded.
• Female subjects who are breastfeeding, or intend to breastfeed, during the study or in the 30 days following the last dose of study drug are excluded.

Sponsors & Collaborators

• Weill Medical College of Cornell University: lead

Study Sites (1)

Weill Medical College of Cornell University

New York, New York, 10021, United States

Location

Related Publications (34)

• Hernandez-Boluda JC, Correa JG, Garcia-Delgado R, Martinez-Lopez J, Alvarez-Larran A, Fox ML, Garcia-Gutierrez V, Perez-Encinas M, Ferrer-Marin F, Mata-Vazquez MI, Raya JM, Estrada N, Garcia S, Kerguelen A, Duran MA, Albors M, Cervantes F. Predictive factors for anemia response to erythropoiesis-stimulating agents in myelofibrosis. Eur J Haematol. 2017 Apr;98(4):407-414. doi: 10.1111/ejh.12846. Epub 2017 Jan 19.

  PMID: 28009442 BACKGROUND

• Tefferi A, Cervantes F, Mesa R, Passamonti F, Verstovsek S, Vannucchi AM, Gotlib J, Dupriez B, Pardanani A, Harrison C, Hoffman R, Gisslinger H, Kroger N, Thiele J, Barbui T, Barosi G. Revised response criteria for myelofibrosis: International Working Group-Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) and European LeukemiaNet (ELN) consensus report. Blood. 2013 Aug 22;122(8):1395-8. doi: 10.1182/blood-2013-03-488098. Epub 2013 Jul 9.

  PMID: 23838352 BACKGROUND

• Barosi G, Mesa R, Finazzi G, Harrison C, Kiladjian JJ, Lengfelder E, McMullin MF, Passamonti F, Vannucchi AM, Besses C, Gisslinger H, Samuelsson J, Verstovsek S, Hoffman R, Pardanani A, Cervantes F, Tefferi A, Barbui T. Revised response criteria for polycythemia vera and essential thrombocythemia: an ELN and IWG-MRT consensus project. Blood. 2013 Jun 6;121(23):4778-81. doi: 10.1182/blood-2013-01-478891. Epub 2013 Apr 16.

  PMID: 23591792 BACKGROUND

• Tefferi A, Guglielmelli P, Larson DR, Finke C, Wassie EA, Pieri L, Gangat N, Fjerza R, Belachew AA, Lasho TL, Ketterling RP, Hanson CA, Rambaldi A, Finazzi G, Thiele J, Barbui T, Pardanani A, Vannucchi AM. Long-term survival and blast transformation in molecularly annotated essential thrombocythemia, polycythemia vera, and myelofibrosis. Blood. 2014 Oct 16;124(16):2507-13; quiz 2615. doi: 10.1182/blood-2014-05-579136. Epub 2014 Jul 18.

  PMID: 25037629 BACKGROUND

• Verstovsek S, Mesa RA, Gotlib J, Levy RS, Gupta V, DiPersio JF, Catalano JV, Deininger MW, Miller CB, Silver RT, Talpaz M, Winton EF, Harvey JH Jr, Arcasoy MO, Hexner EO, Lyons RM, Raza A, Vaddi K, Sun W, Peng W, Sandor V, Kantarjian H; COMFORT-I investigators. Efficacy, safety, and survival with ruxolitinib in patients with myelofibrosis: results of a median 3-year follow-up of COMFORT-I. Haematologica. 2015 Apr;100(4):479-88. doi: 10.3324/haematol.2014.115840. Epub 2015 Jan 23.

  PMID: 25616577 BACKGROUND

• Newberry KJ, Patel K, Masarova L, Luthra R, Manshouri T, Jabbour E, Bose P, Daver N, Cortes J, Kantarjian H, Verstovsek S. Clonal evolution and outcomes in myelofibrosis after ruxolitinib discontinuation. Blood. 2017 Aug 31;130(9):1125-1131. doi: 10.1182/blood-2017-05-783225. Epub 2017 Jul 3.

  PMID: 28674026 BACKGROUND

• Vannucchi AM, Guglielmelli P. Traffic lights for ruxolitinib. Blood. 2017 Aug 31;130(9):1075-1077. doi: 10.1182/blood-2017-07-795880. No abstract available.

  PMID: 28860323 BACKGROUND

• Huang J, Tefferi A. Erythropoiesis stimulating agents have limited therapeutic activity in transfusion-dependent patients with primary myelofibrosis regardless of serum erythropoietin level. Eur J Haematol. 2009 Aug;83(2):154-5. doi: 10.1111/j.1600-0609.2009.01266.x. Epub 2009 Apr 10. No abstract available.

  PMID: 19366369 BACKGROUND

• Akel S, Petrow-Sadowski C, Laughlin MJ, Ruscetti FW. Neutralization of autocrine transforming growth factor-beta in human cord blood CD34(+)CD38(-)Lin(-) cells promotes stem-cell-factor-mediated erythropoietin-independent early erythroid progenitor development and reduces terminal differentiation. Stem Cells. 2003;21(5):557-67. doi: 10.1634/stemcells.21-5-557.

  PMID: 12968110 BACKGROUND

• Soderberg SS, Karlsson G, Karlsson S. Complex and context dependent regulation of hematopoiesis by TGF-beta superfamily signaling. Ann N Y Acad Sci. 2009 Sep;1176:55-69. doi: 10.1111/j.1749-6632.2009.04569.x.

  PMID: 19796233 BACKGROUND

• Scandura JM, Boccuni P, Massague J, Nimer SD. Transforming growth factor beta-induced cell cycle arrest of human hematopoietic cells requires p57KIP2 up-regulation. Proc Natl Acad Sci U S A. 2004 Oct 19;101(42):15231-6. doi: 10.1073/pnas.0406771101. Epub 2004 Oct 11.

  PMID: 15477587 BACKGROUND

• Brenet F, Kermani P, Spektor R, Rafii S, Scandura JM. TGFbeta restores hematopoietic homeostasis after myelosuppressive chemotherapy. J Exp Med. 2013 Mar 11;210(3):623-39. doi: 10.1084/jem.20121610. Epub 2013 Feb 25.

  PMID: 23440043 BACKGROUND

• Chabanon A, Desterke C, Rodenburger E, Clay D, Guerton B, Boutin L, Bennaceur-Griscelli A, Pierre-Louis O, Uzan G, Abecassis L, Bourgeade MF, Lataillade JJ, Le Bousse-Kerdiles MC. A cross-talk between stromal cell-derived factor-1 and transforming growth factor-beta controls the quiescence/cycling switch of CD34(+) progenitors through FoxO3 and mammalian target of rapamycin. Stem Cells. 2008 Dec;26(12):3150-61. doi: 10.1634/stemcells.2008-0219. Epub 2008 Aug 28.

  PMID: 18757300 BACKGROUND

• Zermati Y, Fichelson S, Valensi F, Freyssinier JM, Rouyer-Fessard P, Cramer E, Guichard J, Varet B, Hermine O. Transforming growth factor inhibits erythropoiesis by blocking proliferation and accelerating differentiation of erythroid progenitors. Exp Hematol. 2000 Aug;28(8):885-94. doi: 10.1016/s0301-472x(00)00488-4.

  PMID: 10989189 BACKGROUND

• Zhou L, Nguyen AN, Sohal D, Ying Ma J, Pahanish P, Gundabolu K, Hayman J, Chubak A, Mo Y, Bhagat TD, Das B, Kapoun AM, Navas TA, Parmar S, Kambhampati S, Pellagatti A, Braunchweig I, Zhang Y, Wickrema A, Medicherla S, Boultwood J, Platanias LC, Higgins LS, List AF, Bitzer M, Verma A. Inhibition of the TGF-beta receptor I kinase promotes hematopoiesis in MDS. Blood. 2008 Oct 15;112(8):3434-43. doi: 10.1182/blood-2008-02-139824. Epub 2008 May 12.

  PMID: 18474728 BACKGROUND

• Komrokji R, Garcia-Manero G, Ades L, Prebet T, Steensma DP, Jurcic JG, Sekeres MA, Berdeja J, Savona MR, Beyne-Rauzy O, Stamatoullas A, DeZern AE, Delaunay J, Borthakur G, Rifkin R, Boyd TE, Laadem A, Vo B, Zhang J, Puccio-Pick M, Attie KM, Fenaux P, List AF. Sotatercept with long-term extension for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes: a phase 2, dose-ranging trial. Lancet Haematol. 2018 Feb;5(2):e63-e72. doi: 10.1016/S2352-3026(18)30002-4. Epub 2018 Jan 10.

  PMID: 29331635 BACKGROUND

• Platzbecker U, Germing U, Gotze KS, Kiewe P, Mayer K, Chromik J, Radsak M, Wolff T, Zhang X, Laadem A, Sherman ML, Attie KM, Giagounidis A. Luspatercept for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes (PACE-MDS): a multicentre, open-label phase 2 dose-finding study with long-term extension study. Lancet Oncol. 2017 Oct;18(10):1338-1347. doi: 10.1016/S1470-2045(17)30615-0. Epub 2017 Sep 1.

  PMID: 28870615 BACKGROUND

• Zhang H, Kozono DE, O'Connor KW, Vidal-Cardenas S, Rousseau A, Hamilton A, Moreau L, Gaudiano EF, Greenberger J, Bagby G, Soulier J, Grompe M, Parmar K, D'Andrea AD. TGF-beta Inhibition Rescues Hematopoietic Stem Cell Defects and Bone Marrow Failure in Fanconi Anemia. Cell Stem Cell. 2016 May 5;18(5):668-81. doi: 10.1016/j.stem.2016.03.002. Epub 2016 Mar 24.

  PMID: 27053300 BACKGROUND

• Herbertz S, Sawyer JS, Stauber AJ, Gueorguieva I, Driscoll KE, Estrem ST, Cleverly AL, Desaiah D, Guba SC, Benhadji KA, Slapak CA, Lahn MM. Clinical development of galunisertib (LY2157299 monohydrate), a small molecule inhibitor of transforming growth factor-beta signaling pathway. Drug Des Devel Ther. 2015 Aug 10;9:4479-99. doi: 10.2147/DDDT.S86621. eCollection 2015.

  PMID: 26309397 BACKGROUND

• Badalucco S, Di Buduo CA, Campanelli R, Pallotta I, Catarsi P, Rosti V, Kaplan DL, Barosi G, Massa M, Balduini A. Involvement of TGFbeta1 in autocrine regulation of proplatelet formation in healthy subjects and patients with primary myelofibrosis. Haematologica. 2013 Apr;98(4):514-7. doi: 10.3324/haematol.2012.076752. Epub 2013 Feb 12.

  PMID: 23403314 BACKGROUND

• Ciurea SO, Merchant D, Mahmud N, Ishii T, Zhao Y, Hu W, Bruno E, Barosi G, Xu M, Hoffman R. Pivotal contributions of megakaryocytes to the biology of idiopathic myelofibrosis. Blood. 2007 Aug 1;110(3):986-93. doi: 10.1182/blood-2006-12-064626. Epub 2007 May 1.

  PMID: 17473062 BACKGROUND

• Gastinne T, Vigant F, Lavenu-Bombled C, Wagner-Ballon O, Tulliez M, Chagraoui H, Villeval JL, Lacout C, Perricaudet M, Vainchenker W, Benihoud K, Giraudier S. Adenoviral-mediated TGF-beta1 inhibition in a mouse model of myelofibrosis inhibit bone marrow fibrosis development. Exp Hematol. 2007 Jan;35(1):64-74. doi: 10.1016/j.exphem.2006.08.016.

  PMID: 17198875 BACKGROUND

• Martyre MC, Romquin N, Le Bousse-Kerdiles MC, Chevillard S, Benyahia B, Dupriez B, Demory JL, Bauters F. Transforming growth factor-beta and megakaryocytes in the pathogenesis of idiopathic myelofibrosis. Br J Haematol. 1994 Sep;88(1):9-16. doi: 10.1111/j.1365-2141.1994.tb04970.x.

  PMID: 7803262 BACKGROUND

• Zingariello M, Martelli F, Ciaffoni F, Masiello F, Ghinassi B, D'Amore E, Massa M, Barosi G, Sancillo L, Li X, Goldberg JD, Rana RA, Migliaccio AR. Characterization of the TGF-beta1 signaling abnormalities in the Gata1low mouse model of myelofibrosis. Blood. 2013 Apr 25;121(17):3345-63. doi: 10.1182/blood-2012-06-439661. Epub 2013 Mar 5.

  PMID: 23462118 BACKGROUND

• Ponce CC, de Lourdes F Chauffaille M, Ihara SS, Silva MR. The relationship of the active and latent forms of TGF-beta1 with marrow fibrosis in essential thrombocythemia and primary myelofibrosis. Med Oncol. 2012 Dec;29(4):2337-44. doi: 10.1007/s12032-011-0144-1. Epub 2011 Dec 27.

  PMID: 22200991 BACKGROUND

• Bock O, Loch G, Schade U, von Wasielewski R, Schlue J, Kreipe H. Aberrant expression of transforming growth factor beta-1 (TGF beta-1) per se does not discriminate fibrotic from non-fibrotic chronic myeloproliferative disorders. J Pathol. 2005 Apr;205(5):548-57. doi: 10.1002/path.1744.

  PMID: 15726648 BACKGROUND

• Shehata M, Schwarzmeier JD, Hilgarth M, Hubmann R, Duechler M, Gisslinger H. TGF-beta1 induces bone marrow reticulin fibrosis in hairy cell leukemia. J Clin Invest. 2004 Mar;113(5):676-85. doi: 10.1172/JCI19540.

  PMID: 14991065 BACKGROUND

• Ceglia I, Dueck AC, Masiello F, Martelli F, He W, Federici G, Petricoin EF 3rd, Zeuner A, Iancu-Rubin C, Weinberg R, Hoffman R, Mascarenhas J, Migliaccio AR. Preclinical rationale for TGF-beta inhibition as a therapeutic target for the treatment of myelofibrosis. Exp Hematol. 2016 Dec;44(12):1138-1155.e4. doi: 10.1016/j.exphem.2016.08.007. Epub 2016 Aug 31.

  PMID: 27592389 BACKGROUND

• Margolskee E, Krichevsky S, Orazi A, Silver RT. Evaluation of bone marrow morphology is essential for assessing disease status in recombinant interferon alpha-treated polycythemia vera patients. Haematologica. 2017 Mar;102(3):e97-e99. doi: 10.3324/haematol.2016.153973. Epub 2016 Nov 3. No abstract available.

  PMID: 27810993 BACKGROUND

• Anand S, Stedham F, Beer P, Gudgin E, Ortmann CA, Bench A, Erber W, Green AR, Huntly BJ. Effects of the JAK2 mutation on the hematopoietic stem and progenitor compartment in human myeloproliferative neoplasms. Blood. 2011 Jul 7;118(1):177-81. doi: 10.1182/blood-2010-12-327593. Epub 2011 May 11.

  PMID: 21562050 BACKGROUND

• Arber DA, Orazi A, Hasserjian R, Thiele J, Borowitz MJ, Le Beau MM, Bloomfield CD, Cazzola M, Vardiman JW. The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia. Blood. 2016 May 19;127(20):2391-405. doi: 10.1182/blood-2016-03-643544. Epub 2016 Apr 11.

  PMID: 27069254 BACKGROUND

• Scherber R, Dueck AC, Johansson P, Barbui T, Barosi G, Vannucchi AM, Passamonti F, Andreasson B, Ferarri ML, Rambaldi A, Samuelsson J, Birgegard G, Tefferi A, Harrison CN, Radia D, Mesa RA. The Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF): international prospective validation and reliability trial in 402 patients. Blood. 2011 Jul 14;118(2):401-8. doi: 10.1182/blood-2011-01-328955. Epub 2011 May 2.

  PMID: 21536863 BACKGROUND

• Mascarenhas J, Hoffman R, Talpaz M, Gerds AT, Stein B, Gupta V, Szoke A, Drummond M, Pristupa A, Granston T, Daly R, Al-Fayoumi S, Callahan JA, Singer JW, Gotlib J, Jamieson C, Harrison C, Mesa R, Verstovsek S. Pacritinib vs Best Available Therapy, Including Ruxolitinib, in Patients With Myelofibrosis: A Randomized Clinical Trial. JAMA Oncol. 2018 May 1;4(5):652-659. doi: 10.1001/jamaoncol.2017.5818.

  PMID: 29522138 BACKGROUND

• Harrison C, Kiladjian JJ, Al-Ali HK, Gisslinger H, Waltzman R, Stalbovskaya V, McQuitty M, Hunter DS, Levy R, Knoops L, Cervantes F, Vannucchi AM, Barbui T, Barosi G. JAK inhibition with ruxolitinib versus best available therapy for myelofibrosis. N Engl J Med. 2012 Mar 1;366(9):787-98. doi: 10.1056/NEJMoa1110556.

  PMID: 22375970 BACKGROUND

MeSH Terms

Conditions

Myeloproliferative Disorders; Anemia

Interventions

vactosertib

Condition Hierarchy (Ancestors)

Bone Marrow Diseases; Hematologic Diseases; Hemic and Lymphatic Diseases

Limitations and Caveats

Only a small number of subjects was analyzed due to low accrual and early termination. Additionally, only Tier 1 outcome measures could be analyzed due to 0 subjects enrolling onto Tier 2.

Results Point of Contact

• Title: Joseph Scandura, MD
• Organization: Weill Cornell Medicine

jms2003@med.cornell.edu

(212) 746-2072

Study Officials

• Joseph M Scandura, MD, PhD

  Weill Medical College of Cornell University

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: This is an intra-patient dose finding study which starts with low dose of vactosertib.

Study Record Dates

• First Submitted: September 18, 2019
• First Posted: September 25, 2019
• Study Start: November 22, 2019
• Primary Completion: July 10, 2024
• Study Completion: July 10, 2024
• Last Updated: July 2, 2025
• Results First Posted: July 2, 2025

Record last verified: 2025-06

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)