An Efficacy and Safety Study of Luspatercept (ACE-536) Versus Placebo in Subjects With Myeloproliferative Neoplasm-Associated Myelofibrosis on Concomitant JAK2 Inhibitor Therapy and Who Require Red Blood Cell Transfusions
INDEPENDENCE
A Phase 3, Double-blind, Randomized Study to Compare the Efficacy and Safety of Luspatercept (ACE-536) Versus Placebo in Subjects With Myeloproliferative Neoplasm-Associated Myelofibrosis on Concomitant JAK Inhibitor Therapy and Who Require Red Blood Cell Transfusions
3 other identifiers
interventional
313
25 countries
180
Brief Summary
The purpose of this Phase 3 study is to evaluate the efficacy and safety of Luspatercept compared with placebo in subjects with myeloproliferative neoplasm (MPN)-associated Myelofibrosis (MF) and anemia on concomitant Janus kinase 2 (JAK2) inhibitor therapy and who require red blood cell count (RBC) transfusions. The study is divided into Screening Period, a Treatment Phase (consisting of a Blinded Core Treatment Period, a Day 169 Response Assessment, a Blinded Extension Treatment Period, and an Open-label Extension Treatment Period), and a Posttreatment Follow-up Period. Following the Day 169 Response Assessment, subjects who did not show clinical benefit will have the option to unblind. Subjects who were on placebo during the Blinded Core Treatment Period will have the opportunity to crossover into the Open-Label Extension Treatment Period and receive Luspatercept.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Feb 2021
Longer than P75 for phase_3
180 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 29, 2020
CompletedFirst Posted
Study publicly available on registry
January 22, 2021
CompletedStudy Start
First participant enrolled
February 25, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 26, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 18, 2032
ExpectedJuly 10, 2025
June 1, 2025
4.2 years
December 29, 2020
July 7, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Red blood cell-transfusion independence (RBC-TI) ≥ 12 weeks (RBC-TI 12)
Proportion of subjects who become RBC-transfusion free over any consecutive 12-week period starting within the first 24 weeks.
Up to 24 weeks
Secondary Outcomes (15)
Red blood cell-transfusion independence ≥ 16 weeks (RBC-TI 16)
Up to 24 weeks
Duration of Red blood cell-transfusion independence (RBC-TI 12)
Up to end of treatment, approximately 3 years
Reduction of transfusion burden by ≥ 50% and by ≥ 4 units/12 weeks from baseline over any consecutive 12-week period
Up to 24 weeks
Duration of reduction in transfusion burden
Up to end of treatment, approximately 3 years
Red blood cell-transfusion independence ≥ 12 weeks in the treatment period (RBC-TI 12/TP)
Up to end of treatment, approximately 3 years
- +10 more secondary outcomes
Study Arms (2)
Experimental Arm: Luspatercept (ACE-536)
EXPERIMENTALLuspatercept will be given to participants via subcutaneous injection (administered on Day 1 of each 21-day treatment cycle)
Control Arm: Placebo
PLACEBO COMPARATORPlacebo starting dose with volume equivalent to experimental arm subcutaneous injection every 3 weeks (administered on Day 1 of each 21-day treatment cycle)
Interventions
Eligibility Criteria
You may qualify if:
- \- Subject is ≥18 years of age at the time of signing the ICF.
- Subject has a diagnosis of PMF according to the 2016 World Health Organization (WHO) criteria or diagnosis of post-ET or post-PV MF according to the IWG-MRT 2007 criteria, confirmed by the most recent local pathology report.
- Subject is requiring RBC transfusions as defined as:.
- i) Average RBC-transfusion frequency: 4 to 12 RBC units/12 weeks immediately up to randomization. There must be no interval \> 6 weeks (42 days) without ≥ 1 RBC transfusion.
- ii) RBC transfusions are scored in determining eligibility when given for treatment of:.
- A. Symptomatic (ie, fatigue or shortness of breath) anemia with a pretransfusion Hgb ≤ 9.5 g/dL or.
- B. Asymptomatic anemia with a pretransfusion Hgb ≤ 7 g/dL.
- iii) RBC transfusions given for worsening of anemia due to bleeding or infections are not scored in determining eligibility.
- \- Subjects on continuous (eg, absent of dose interruptions lasting ≥ 2 consecutive weeks) JAK2 inhibitor therapy as approved in the country of the study site for the treatment for MPN-associated MF as part of their standard-of-care therapy for at least 32 weeks, on stable daily dose for at least 16 weeks immediately up to the date of randomization and anticipated to be on a stable daily dose of that JAK2 inhibitor for at least 24 weeks after randomization.
- Subject has an Eastern Cooperative Oncology Group (ECOG) performance score of ≤ 2.
- A female of childbearing potential (FCBP) for this study is defined as a female who: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (eg, has had menses at any time in the preceding 24 consecutive months). Females of childbearing potential (FCBP)participating in the study must:.
- i) Have 2 negative pregnancy tests as verified by the Investigator prior to starting study therapy. She must agree to ongoing pregnancy testing during the study, and after end of IP. This applies even if the subject practices true abstinence\* from heterosexual contact.
- ii) Either commit to true abstinence\* from heterosexual contact (which must be reviewed on a monthly basis and source documented) or agree to use, and be able to comply with, effective contraception\*\* without interruption, 28 days prior to starting IP, during the study therapy (including dose interruptions), and for 12 weeks (approximately 5 times the mean terminal half-life of IP based on multiple-dose PK data) after discontinuation of study therapy.
- \- Male subjects must: Practice true abstinence\* (which must be reviewed on a monthly basis) or agree to use a condom during sexual contact with a pregnant female or a female of childbearing potential\*\* while participating in the study, during dose interruptions and for at least 12 weeks (approximately 5 times the mean terminal half-life of IP based on multiple-dose PK data) following IP discontinuation, even if he has undergone a successful vasectomy.
- i) True abstinence is acceptable when it is in line with the preferred and usual lifestyle of the subject. \[Periodic abstinence (eg, calendar, ovulation, symptothermal, postovulation methods) and withdrawal are not acceptable methods of contraception.\].
- +3 more criteria
You may not qualify if:
- The presence of any of the following will exclude a subject from randomization:.
- Subject with anemia from cause other than MPN-associated MForJAK2 inhibitor therapy (eg, iron deficiency, vitamin B12 and/or folate deficiencies, autoimmune or hemolytic anemia, infection, or any type of known clinically significant bleeding or sequestration).
- Subject use of hydroxyurea, immunomodulatory compounds such as pomalidomide, thalidomide, ESAs, androgenic steroids or other drugs with potential effects on hematopoiesis ≤ 8 weeks immediately up to the date of randomization.
- i) Systemic corticosteroids are permitted for nonhematological conditions providing the subject is receiving a constant dose equivalent to ≤ 10 mg prednisone for the 4 weeks immediately up to randomization.
- ii) Iron chelation therapy (ICT) is permitted providing the subject is receiving a stable dose for the 8 weeks immediately up to randomization.
- \- Subject with any of the following laboratory abnormalities at screening:.
- i) Neutrophils: \< 1 x 10\^9/L.
- ii) White blood count (WBC): \> 100 x 10\^9/L.
- iii) Platelets: the lowest allowable level as approved for the concomitant JAK2 inhibitor but not \< 25 x 10\^9/L or \> 1000 x 10\^9/L.
- iv) Peripheral blood myeloblasts:\> 5%.
- v) Estimated glomerular filtration rate:\< 30 mL/min/1.73 m2 (via the 4-variable modification of diet in renal disease \[MDRD\] formula) or nephrotic subjects (eg, urine albumin-to-creatinine ratio \> 3500 mg/g).
- vi) Aspartate aminotransferase (AST) or alanine aminotransferase (ALT):\> 3.0 x upper limit of normal (ULN).
- vii) Direct bilirubin: ≥ 2 x ULN.
- A. Higher levels are acceptable if these can be attributed to active red blood cell precursor destruction within the bone marrow (eg, ineffective erythropoiesis).
- Subject with uncontrolled hypertension, defined as repeated elevations of systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg, that is not resolved at the time of randomization.
- +16 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Celgenelead
Study Sites (185)
Local Institution - 110
Los Angeles, California, 90095, United States
Local Institution - 135
Orlando, Florida, 32804, United States
Local Institution - 133
Plantation, Florida, 33322, United States
Local Institution - 112
Chicago, Illinois, 60612, United States
Local Institution - 124
Lexington, Kentucky, 40536-0293, United States
Local Institution - 114
Ann Arbor, Michigan, 48109, United States
Local Institution - 108
St Louis, Missouri, 63110, United States
John Theurer Cancer Center
Hackensack, New Jersey, 07601-2191, United States
Mount Sinai Medical Center
New York, New York, 10029, United States
University of Pittsburg Medical Center
Pittsburgh, Pennsylvania, 15213, United States
Allegheny Health Network
Pittsburgh, Pennsylvania, 15224, United States
Local Institution - 130
Knoxville, Tennessee, 37920, United States
The University of Texas - MD Anderson Cancer Center
Houston, Texas, 77030, United States
Local Institution - 119
Salt Lake City, Utah, 84112, United States
Local Institution - 172
Ciudad Autónoma de BuenosAires, Buenos Aires, C1280AEB, Argentina
Hospital Italiano de La Plata
La Plata, Buenos Aires, B1900AX, Argentina
Hospital Italiano de Buenos Aires
Buenos Aires, C1199ABB, Argentina
Monash Medical Centre
Clayton, Victoria, 3168, Australia
The Alfred Hospital
Melbourne, Victoria, 3004, Australia
Sir Charles Gairdner Hospital
Nedlands, Western Australia, 6009, Australia
Gosford Hospital
Gosford, 2250, Australia
Royal Hobart Hospital
Hobart, 7000, Australia
Local Institution - 272
Graz, 8036, Austria
Krankenhaus der Elisabethinen Linz, I Interne Abteilung
Linz, 4020, Austria
Local Institution - 271
Vienna, 1090, Austria
Local Institution - 274
Vienna, 1140, Austria
Local Institution - 318
Bruges, 8000, Belgium
Local Institution - 312
Brussels, 1200, Belgium
Local Institution - 313
Hasselt, 3500, Belgium
Uz Leuven
Leuven, 3000, Belgium
Local Institution - 319
Liège, 4000, Belgium
Local Institution - 316
Roeselare, 8800, Belgium
Local Institution - 315
Verviers, 4800, Belgium
Cliniques Universitaires UCL de Mont-Godine
Yvoir, 5530, Belgium
Local Institution - 181
Calgary, Alberta, T2N 4N2, Canada
Local Institution - 179
Edmonton, Alberta, T6G 2S2, Canada
Local Institution - 183
Vancouver, British Columbia, V6Z 2A5, Canada
University Hospital - London Health Sciences Centre
London, Ontario, N6C 6B5, Canada
Local Institution - 180
Toronto, Ontario, M5G 2M9, Canada
Local Institution - 177
Montreal, Quebec, H1T 2M4, Canada
Sir Mortimer B. Davis - Jewish Genl
Montreal, Quebec, H3T 1E2, Canada
Local Institution - 176
Sherbrooke, Quebec, J1H5N4, Canada
IC La Serena Research
La Serena, Coquimbo Region, 1720430, Chile
Local Institution - 192
Las Condes, Metropolitana de Santiago, 7560742, Chile
Local Institution - 193
Santiago, 7500587, Chile
Nanfang Hospital of Southern Medical University
Guangzhou, GD, 510515, China
The First Affiliated Hospital of Nanyang Medical College
Nanyang, Henan, China
Xiangya Hospital Central-South University
Changsha, Hunan, 410008, China
Local Institution - 804
Nanjing, Jiangsu, 210029, China
Local Institution - 818
Nantong, Jiangsu, 226001, China
Local Institution - 820
Nanchang, Jiangxi, 330006, China
Nanchang University - The Second Affiliated Hospital
Nanchang, Jiangxi, 330008, China
Local Institution - 821
Qingdao, Shandong, 0, China
Local Institution - 816
Taiyuan, Shanxi, 030001, China
The Second Affiliated Hospital Of Kunming Medical University
Kunming, Yunnan, 650101, China
Beijing Peking Union Medical College Hospital
Beijing, 100730, China
Local Institution - 802
Changchun, 130021, China
Guangdong General Hospital
Guangzhou, 510030, China
The First Affiliated Hospital Of Harbin Medical University
Harbin, 150081, China
Local Institution - 809
Shanghai, 200025, China
Local Institution - 801
Shanghai, 200233, China
Local Institution - 811
Suzhou, 215006, China
Local Institution - 800
Tianjin, 300041, China
Tianjin Medical University General Hospital
Tianjin, 300052, China
Local Institution - 810
Zhengzhou, 0, China
Local Institution - 161
Medellín, Antioquia, 50034, Colombia
Local Institution - 163
Bogotá, Distrito Capital de Bogotai, 111511, Colombia
Local Institution - 162
Floridablanca, Soto, 681002, Colombia
Local Institution - 341
Prague, 128 08, Czechia
Local Institution - 331
Angers, 49033, France
Local Institution - 333
Clermont-Ferrand, 63000, France
Local Institution - 324
Créteil, 94010, France
Chu De Grenoble
Grenoble, 38043, France
Local Institution - 327
Lille, 59037, France
Local Institution - 332
Lyon, 69008, France
CHU de Nice Archet I
Nice, 06202, France
Centre Hospitalier Universitaire de Nimes (CHU) - Hopital Universitaire Caremeau
Nîmes, 30029, France
Hopital Saint Louis
Paris, 75475, France
Groupe Hospitalier Sud Hopital Haut Leveque USN
Pessac, 33604, France
CHU La Miletrie
Poitiers, 86021, France
ICANS Institut de cancerologie Strasbourg Europe
Strasbourg, 67200, France
Local Institution - 330
Toulouse, 31059, France
Unviversitatsklinikum Aachen
Aachen, 52074, Germany
Stauferklinikum Schwab. Gmund
Baden-Warttemberg, 73557, Germany
Local Institution - 299
Düsseldorf, 40225, Germany
Universitatsklinikum Halle Saale
Halle, 06120, Germany
Local Institution - 300
Hamburg, 22081, Germany
Universitaetsklinikum Jena
Jena, 07740, Germany
Local Institution - 297
Leipzig, 04103, Germany
Local Institution - 301
Mannheim, 68167, Germany
Johannes Wiesling Klinikum Minden
Minden, 32429, Germany
Local Institution - 387
Pátrai, Achaia, 264 43, Greece
Local Institution - 383
Alexandroupoli, 08100, Greece
Evangelismos General Hospital of Athens
Athens, 10676, Greece
Local Institution - 386
Athens, 11 527, Greece
Attikon University General Hospital
Athens, 12464, Greece
University General Hospital of Patras
Rio Patras, 26500, Greece
Georgios Papanikolaou General Hospital of Thessaloniki
Thessaloniki, 57010, Greece
Local Institution - 661
Hong Kong, 0, Hong Kong
Prince of Wales Hospital the Chinese University of Hong Kong
Shatin, 0, Hong Kong
Local Institution - 462
Budapest, 1096, Hungary
Local Institution - 463
Győr, 9023, Hungary
Cork University Hospital
Cork, T12 DFK4, Ireland
Mater Misercordiae Hospital
Dublin, 7, Ireland
St James Hospital
Dublin, Dublin 8, Ireland
Tel-Aviv Sourasky Medical Center
Tel Aviv, Tel Aviv, 64239, Israel
Rambam Medical Center
Haifa, 31096, Israel
Hadassah Medical Organization
Jerusalem, 91120, Israel
Meir Medical Center
Kfar Saba, 44281, Israel
Shamir Medical Center - Assaf Harofeh
Ẕerifin, 70300, Israel
IRCCS - Istituto Romagnolo per lo Studio Dei Tumori "Dino Amadori" (IRST)
Meldola (fc), Fc, 47014, Italy
Local Institution - 250
Ancona, 60126, Italy
Azienda Ospedaliero-Universitaria di Bologna - Policlinico S.Orsola-Malpighi
Bologna, 40138, Italy
Asst Spedali Civili Di Brescia
Brescia, 25123, Italy
Azienda Ospedaliero - Universitaria Policlinico - Vittorio Emanuele - Ospedale Gaspare Rodolico
Catania, 95123, Italy
Azienda Ospedaliera Universitaria Careggi
Florence, 50134, Italy
Fondazione Irccs Ca' Granda Ospedale Maggiore Policlinico
Milan, 20122, Italy
Local Institution - 246
Napoli Campania, 80131, Italy
A.O.U. Maggiore della Carit
Novara, 28100, Italy
Azienda Ospedaliera Di Padova
Padua, 35128, Italy
Local Institution - 248
Pisa, 56100, Italy
Grande Ospedale Metropolitano Bianchi-Melacrino-Morelli
Reggio Calabria, 89124, Italy
Azienda Policlinico Universitario Umberto I
Roma, 00100, Italy
Local Institution - 251
Roma, 00189, Italy
Local Institution - 249
Roma, 144, Italy
Local Institution - 245
Terni, 05100, Italy
Local Institution - 259
Torino, 10126, Italy
Universita degli Studi dell'Insubria - Ospedale di Circolo e Fondazione Macchi - Varese
Varese, 21100, Italy
Centro Ricerche Cliniche di Verona S.r.l.
Verona, 37134, Italy
The Japanese Red Cross Nagasaki Genbaku Hospital
Nagasaki, Nagasaki, 8528511, Japan
Kindai University Hospital- Osakasayama Campus
Sayama, Osaka, 5898511, Japan
Local Institution - 701
Bunkyo-ku, Tokyo, 113-8431, Japan
Local Institution - 709
Chūō, Yamanashi, 409-3898, Japan
Aomori Prefectural Central Hospital
Aomori, 030-8553, Japan
Local Institution - 713
Bunkyō City, 113-8677, Japan
Tokai University Hospital
Isehara City, Kanagawa, 259-1193, Japan
Local Institution - 717
Kamakura, 247-8533, Japan
Kameda General Hospital
Kamogawa, 296-8602, Japan
Local Institution - 706
Maebashi, 371-8511, Japan
University of Miyazaki Hospital
Miyazaki, 889-1692, Japan
Osaka Metropolitan university Hospital
Osaka, 545-8586, Japan
Ogaki Municipal Hospital
Ōgaki, 503-8502, Japan
Local Institution - 708
Sapporo, 003-0006, Japan
NTT Medical Center Tokyo
Shinagawa-ku, Tokyo, 141-8625, Japan
Tokyo Women's Medical University Hospital
Shinjuku, 162-8666, Japan
Local Institution - 710
Shinjyuku-ku, 160-0023, Japan
Toyohashi Municipal Hospital
Toyohashi, 441-8570, Japan
Local Institution - 551
Saida, South, 652, Lebanon
Local Institution - 550
Badaro Beirut, 11072280, Lebanon
Local Institution - 552
Beirut, 11-3288, Lebanon
Local Institution - 436
Gdansk, 80-952, Poland
Samodzielny Publiczny Zaklad Opieki Zdrowotnej Szpital Uniwersytecki w Krakowie
Krakow, 31-501, Poland
Wojewódzki Szpital Specjalistyczny im. M. Kopernika w Lodzi
Lodz, 93-510, Poland
Local Institution - 433
Poznan, 61-696, Poland
Specjalistyczny Szpital im. dra Alfreda Sokolowskiego
Wałbrzych, 58-309, Poland
Local Institution - 435
Wroclaw, 50367, Poland
Local Institution - 395
Craiova, Dolj, 200143, Romania
Onco Card SRL
Brasov, 500052, Romania
Local Institution - 391
Bucharest, 022328, Romania
Prof. Dr. I. Chiricuta Institute of Oncology
Cluj-Napoca, 400015, Romania
Local Institution - 500
Moscow, 125284, Russia
Local Institution - 503
Saint Petersburg, 197022, Russia
Local Institution - 502
Saint Petersburg, 197341, Russia
Kyungpook National University Hospital
Daegu, 700-721, South Korea
Chonnam National University Hwasun Hospital
Hwasun-Gun, 58128, South Korea
Local Institution - 643
Seongnam-si, 13620, South Korea
Local Institution - 647
Seoul, 06351, South Korea
The Catholic University of Korea Seoul - Saint Mary's Hospital
Seoul, 06591, South Korea
Seoul National University Hospital
Seoul, 3080, South Korea
Asan Medical Center
Seoul, 5505, South Korea
Hospital Clinic de Barcelona
Barcelona, 08036, Spain
Hospital Universitari Germans Trias i Pujol ICO Badalona
Barcelona, 08916, Spain
Local Institution - 208
Granada, 18014, Spain
Hospital Universitario De Gran Canaria Dr. Negrin
Las Palmas de Gran Canaria, 35012, Spain
Hospital Universitario Ramón y Cajal
Madrid, 28034, Spain
Hospital Universitario 12 De Octubre
Madrid, 28041, Spain
Local Institution - 202
Palma de Mallorca, 7120, Spain
Universitario de Salamanca - Hospital Clinico
Salamanca, 37007, Spain
Complejo Hospitalario Universitario De Santiago
Santiago de Compostela, 15706, Spain
Hospital Universitario Virgen del Rocio
Seville, 41013, Spain
Hospital Clinico Universitario De Valencia
Valencia, 46010, Spain
Nottingham City Hospital
Nottingham, Nottinghamshire, NG5 1PB, United Kingdom
Heart of England NHS Foundation Trust
Birmingham, B9 5SS, United Kingdom
United Lincolnshire Hospitals NHS Trust
Boston, PE21 9QS, United Kingdom
Churchhill Hospital
Oxford, OX3 7LI, United Kingdom
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bristol-Myers Squibb
Bristol-Myers Squibb
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 29, 2020
First Posted
January 22, 2021
Study Start
February 25, 2021
Primary Completion
May 26, 2025
Study Completion (Estimated)
August 18, 2032
Last Updated
July 10, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- See Plan Description
- Access Criteria
- See Plan Description
Information relating to our policy on data sharing and the process for requesting data can be found at the following link: https://www.celgene.com/research-development/clinical-trials/clinical-trials-data-sharing/