Drugs / Luspatercept
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Luspatercept

also known as ACE-536 · Reblozyl · BMS-986346 · Luspatercept aamt

Protein / enzyme biologic targets GDF11, SMAD2, SMAD3 via inhibition

Developed for
myelodysplastic syndrome · anemia · beta thalassemia · myelofibrosis · aplastic anemia · primary myelofibrosis · acute leukemia · aregenerative anemia
+13 more · beta-thalassemia major · bone marrow failure syndrome · clonal hematopoiesis · engraftment syndrome · erythrocyte disorder · hematopoietic and lymphoid cell neoplasm · myelodysplastic syndrome associated with isolated del(5q) · myelodysplastic/myeloproliferative neoplasm · myeloproliferative neoplasm · neutropenia · ovarian granulosa cell tumor · thalassemia · thrombocytopenia
Investigated by
Celgene Corporation · Acceleron Pharma, Inc. · Bristol-Myers Squibb · Nanfang Hospital, Southern Medical University · Peking Union Medical College Hospital · Institute of Hematology & Blood Diseases Hospital, China
+27 more · National Cancer Institute (NCI) · Affiliated Hospital of Guangdong Medical University · Associazione Qol-one · Beijing Health Alliance Charitable Foundation · Bing Han · EuroBloodNet Association · First Affiliated Hospital of Guangxi Medical University · GWT-TUD GmbH · GlaxoSmithKline · Groupe Francophone des Myelodysplasies · Guangdong Second Provincial General Hospital · Guangzhou 8th People's Hospital · Guangzhou First People's Hospital · H. Lee Moffitt Cancer Center and Research Institute · Hematology department of the 920th hospital · M.D. Anderson Cancer Center · Mayo Clinic · Mikkael Sekeres MD · Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University · Sun Yat-sen University · The First Affiliated Hospital of Zhejiang Chinese Medical University · University Health Network, Toronto · University Hospital, Grenoble · University of Leipzig · Weill Medical College of Cornell University · Yale University · Zhujiang Hospital

Regulatory milestones approvals, filings & regulatory actions · 8 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed anemia 3 milestones
Filed US (FDA) Reblozyl anemia 2023-07-27

“The FDA accepted the supplemental Biologics License Application for Reblozyl , a first-in-class treatment option, to expand its current indication to include treatment of anemia” bms.com ↗

Filed EU (EMA) Reblozyl anemia 2023-07-27

“the European Medicines Agency (EMA) validated the Type II Variation Application for Reblozyl to expand its current indication to include ESA-naïve treatment of anemia” bms.com ↗

Filed Japan (PMDA) Reblozyl anemia 2023-07-27

“Japan’s Ministry of Health, Labour and Welfare accepted the New Drug Application for Reblozyl as a treatment of anemia in adult patients with MDS” bms.com ↗

Filed beta-thalassemia and related diseases 2 milestones
Filed EU (EMA) Reblozyl beta-thalassemia and related diseases 2021-12-03

“the European Medicines Agency has validated the Type II variation for Reblozyl in NTD beta thalassemia.” bms.com ↗

“The EMA also validated the Type II variation for Reblozyl for NTD beta thalassemia.” bms.com ↗

“regulatory filings of luspatercept and ozanimod in the U.S. and Europe.” bms.com ↗

Filed US (FDA) Reblozyl beta-thalassemia and related diseases 2021-12-03

“The FDA has accepted for priority review the supplemental Biologics License Application (sBLA) for Reblozyl” bms.com ↗

“has accepted for priority review the supplemental Biologics License Application (sBLA) for Reblozyl” bms.com ↗

“regulatory filings of luspatercept and ozanimod in the U.S. and Europe.” bms.com ↗

Approved Indication not stated 3 milestones
Label expansion US (FDA) REBLOZYL — 2023-08-28 fda.gov ↗
Approved EU (EMA) Reblozyl — 2020-06-25 europa.eu ↗
Approved US (FDA) REBLOZYL — 2019-11-08 fda.gov ↗

Trials 49

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT01432717 Sep 2011 → Sep 2012 anemia Acceleron Pharma, Inc. Completed No outcome recorded
Phase 1/24 trials
Phase 1/2 NCT07663864 Jun → Dec 2026 expected aregenerative anemia Guangdong Second Provincial General Hospital Recruiting No outcome recorded
Phase 1/2 NCT07362095 Oct 2025 → Dec 2027 expected acute leukemia Zhujiang Hospital Recruiting No outcome recorded
Phase 1/2 NCT05181735 May 2022 → Dec 2028 expected myelodysplastic syndrome Groupe Francophone des Myelodysplasies Recruiting No outcome recorded
Phase 1/2 NCT04539236 Nov 2021 → Aug 2029 myelodysplastic syndrome Mikkael Sekeres MD Suspended No outcome recorded Stop: Business
Phase 225 trials · 2 met primary
Phase 2 NCT07463820 Dec 2026 → Dec 2027 expected myelodysplastic syndrome National Cancer Institute (NCI) Not yet recruiting No outcome recorded
Phase 2 NCT07450313 Mar 2026 → Jun 2027 expected disease related to hematopoietic stem cell transplant Institute of Hematology & Blood Diseases Hospital, China Not yet recruiting No outcome recorded
Phase 2 NCT07331818 Jan 2026 → Sep 2028 expected erythrocyte disorder EuroBloodNet Association Not yet recruiting No outcome recorded
Phase 2 NCT07096297 Dec 2025 → Aug 2030 expected myelodysplastic syndrome Yale University Recruiting No outcome recorded
Phase 2 NCT06788691 Mar 2025 → Feb 2027 expected anemia, clonal hematopoiesis, neutropenia, thrombocytopenia Weill Medical College of Cornell University Recruiting No outcome recorded
Phase 2 NCT06517875 Feb 2025 → Mar 2027 expected myelofibrosis, primary myelofibrosis GlaxoSmithKline Recruiting No outcome recorded
Phase 2 NCT05564390 Jun 2024 → May 2029 expected acute myeloid leukemia with multilineage dysplasia, myelodysplastic syndrome National Cancer Institute (NCI) Recruiting No outcome recorded
Phase 2 NCT06113302 Mar 2024 → Jun 2028 expected myelodysplastic syndrome M.D. Anderson Cancer Center Active not recruiting No outcome recorded
Phase 2 NCT05925504 Jul 2023 → Jun 2026 overdue myelodysplastic syndrome Institute of Hematology & Blood Diseases Hospital, China Recruiting No outcome recorded
Phase 2 NCT05732961 Feb 2023 → Mar 2026 overdue anemia, myelodysplastic syndrome, myeloproliferative neoplasm H. Lee Moffitt Cancer Center and Research Institute Active not recruiting No outcome recorded
Phase 2/32 trials
Phase 2/3 NCT07636486 Jun 2026 → Jun 2028 expected engraftment syndrome, hematopoietic and lymphoid cell neoplasm Nanfang Hospital, Southern Medical University Not yet recruiting No outcome recorded
Phase 2/3 NCT07539779 May 2026 → Jan 2030 expected bone marrow failure syndrome, myelofibrosis Nanfang Hospital, Southern Medical University Not yet recruiting No outcome recorded
Phase 39 trials · 3 met primary · 1 missed
Phase 3 NCT06927232 Apr 2025 → Jan 2026 overdue myelodysplastic syndrome Peking Union Medical College Hospital Not yet recruiting No outcome recorded
Phase 3 NCT05949684 Oct 2023 → Mar 2028 expected myelodysplastic syndrome Bristol-Myers Squibb Active not recruiting No outcome recorded
Phase 3 NCT06045689 Oct 2023 → Oct 2025 overdue myelodysplastic syndrome Bristol-Myers Squibb Active not recruiting No outcome recorded
Phase 3 NCT05181592 Oct 2021 → Oct 2026 expected myelodysplastic syndrome GWT-TUD GmbH Active not recruiting No outcome recorded
Phase 3 NCT04717414 Feb 2021 → May 2025 overdue myelofibrosis, primary myelofibrosis Celgene Corporation Active not recruiting Missed primary
Phase 3 NCT04064060 Aug 2019 → May 2028 expected beta thalassemia, myelodysplastic syndrome, myelofibrosis Celgene Corporation Recruiting No outcome recorded
Phase 3 NCT03682536 Jan 2019 → Mar 2023 overdue myelodysplastic syndrome Celgene Corporation Active not recruiting Met primary
Phase 3 NCT02604433 May 2016 → Jan 2021 beta thalassemia Celgene Corporation Completed Met primary
Phase 3 NCT02631070 Feb 2016 → Jun 2019 myelodysplastic syndrome Celgene Corporation Completed Met primary
Phase 45 trials
Phase 4 NCT07830004 Nov 2026 → May 2031 expected myelodysplastic syndrome University Hospital, Grenoble Not yet recruiting No outcome recorded
Phase 4 NCT06424639 May 2024 → May 2025 aplastic anemia Peking Union Medical College Hospital Withdrawn No outcome recorded
Phase 4 NCT06006949 Aug 2023 → Aug 2024 myelodysplastic syndrome Peking Union Medical College Hospital Unknown No outcome recorded
Phase 4 NCT05891249 Jun 2023 → Dec 2028 expected anemia Bristol-Myers Squibb Active not recruiting No outcome recorded
Phase 4 NCT05462548 Jul 2022 → Feb 2023 beta-thalassemia major Sun Yat-sen University Unknown No outcome recorded
Phase not applicable3 trials
— NCT06964971 May 2025 → May 2027 expected aplastic anemia The First Affiliated Hospital of Zhejiang Chinese Medical University Not yet recruiting No outcome recorded
— NCT06164821 Jan 2024 — Hematology department of the 920th hospital Unknown No outcome recorded
— NCT06254781 May → Aug 2022 ovarian granulosa cell tumor University Health Network, Toronto Completed No outcome recorded
Comparator or background therapy1 trial
Phase 2 NCT07338344 Comparator Feb 2026 → Dec 2027 expected beta-thalassemia major Rongrong Liu Recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 30

DateIssuerRelease
2026-02-23 Bristol-Myers Squibb Results Bristol Myers Squibb Announces Positive Top-Line Results from Registrational Phase 2 Study of Luspatercept in Adults with Alpha (α)-Thalassemia bms.com ↗
The study also met all key secondary endpoints.
2025-12-01 Bristol-Myers Squibb Results Bristol Myers Squibb Data at ASH 2025 Showcase Potential of Hematology Pipeline and Build Momentum for Next Generation Portfolio bms.com ↗
Clinical benefit of luspatercept in erythropoiesis-stimulating agent (ESA)-naive patients (pts) with early disease characteristics and very low-, low-, or intermediate-risk myelodysplastic syndromes (LR-MDS)-associated anemia: A post hoc analysis from the COMMANDS trial
2025-07-18 Bristol-Myers Squibb Results Bristol Myers Squibb Announces Topline Results from Phase 3 INDEPENDENCE Trial for Reblozyl® (luspatercept-aamt) in Adult Patients with Myelofibrosis-Associated Anemia bms.com ↗
Patients saw a numerical and clinically meaningful improvement in RBC transfusion independence favoring Reblozyl , in line with previous results from the Phase 2 trial ( NCT03194542 ).
2024-05-23 Bristol-Myers Squibb Results Bristol Myers Squibb to Present Data at ASCO & EHA from More Than 130 Studies Across 25 Diseases Supporting Expansion into New Indications, Demonstrating Long-Term Survival, and Highlighting Novel Modalities and Research Platforms bms.com ↗
Luspatercept improves hematopoiesis in lower-risk myelodysplastic syndromes (MDS): Comparative biomarker analysis of ring sideroblast-positive and -negative subgroups from the phase 3 COMMANDS study.
2024-04-02 Bristol-Myers Squibb Regulatory European Commission Expands Approval of Bristol Myers Squibb’s Reblozyl® (luspatercept) to Include First-Line Treatment of Transfusion-Dependent Anemia in Adults with Lower-Risk Myelodysplastic Syndromes (LR-MDS) bms.com ↗
Bristol Myers Squibb (NYSE: BMY) today announced that the European Commission (EC) has expanded approval of Reblozyl ® (luspatercept) to include the first-line treatment of adult patients with transfusion-dependent anemia due to very low, low and intermediate-risk myelodysplastic syndromes (MDS).
2024-02-23 Bristol-Myers Squibb Regulatory Bristol Myers Squibb Receives Positive CHMP Opinion for Reblozyl ® (luspatercept) for Treatment of Adults with Transfusion-Dependent Anemia due to Low- to Intermediate-Risk Myelodysplastic Syndromes (MDS) bms.com ↗
2023-12-09 Bristol-Myers Squibb Results Bristol Myers Squibb Presents Primary Efficacy and Safety Analysis of the Phase 3 COMMANDS Trial of Reblozyl for Treatment of Anemia in Erythropoiesis Stimulating Agent-Naïve Patients with Lower-Risk Myelodysplastic Syndromes at ASH 2023 bms.com ↗
New data confirm findings consistent with interim analysis, reaffirming superior efficacy and significantly longer durability of response with Reblozyl ® (luspatercept-aamt) compared to epoetin alfa
2023-11-02 Bristol-Myers Squibb Results Bristol Myers Squibb’s First Disclosures and New Data at ASH 2023 Highlight Company’s Leadership and Progress in Cell Therapy, Targeted Protein Degradation and Novel Approaches in Hematology bms.com ↗
New data from the Phase 3 COMMANDS study evaluating Reblozyl ® (luspatercept-aamt), including results from the primary analysis and patient-reported outcomes, reinforce Reblozyl’s clinical benefit in erythropoiesis stimulating agent-naïve, myelodysplastic syndromes-related anemia
2023-08-28 Bristol-Myers Squibb Regulatory U.S. FDA Approves Bristol Myers Squibb’s Reblozyl® (luspatercept-aamt) as First-Line Treatment of Anemia in Adults with Lower-Risk Myelodysplastic Syndromes (MDS) Who May Require Transfusions bms.com ↗
2023-05-25 Bristol-Myers Squibb Results Bristol Myers Squibb to Present First Results at ASCO and EHA from Phase 3 COMMANDS Study of Reblozyl® (luspatercept-aamt) in First-Line Treatment of Anemia in Adults with Lower-Risk Myelodysplastic Syndromes (MDS) bms.com ↗
Results from Phase 3 COMMANDS study, selected for ASCO’s official press program, show nearly twice as many patients treated with Reblozyl achieved superior transfusion independence with concurrent hemoglobin increase vs. epoetin alfa, including in clinically relevant subgroups
2023-05-11 Bristol-Myers Squibb Results Bristol Myers Squibb to Highlight Diversified Approaches and Commitment to Improving Outcomes for Patients with Cancer and Serious Blood Disorders at ASCO, EHA and ICML 2023 bms.com ↗
demonstrated highly statistically significant and clinically meaningful improvement in patients with anemia associated with very low- to intermediate-risk myelodysplastic syndromes
2023-05-01 Bristol-Myers Squibb Regulatory U.S. FDA Accepts for Priority Review Supplemental Biologics License Application and EMA Validates Application for Reblozyl® (luspatercept-aamt) as First-Line Treatment of Anemia in Adults with Lower-Risk Myelodysplastic Syndromes (MDS) bms.com ↗
In the U.S., the FDA has granted the application Priority Review and assigned a Prescription Drug User Fee Act (PDUFA) goal date of August 28, 2023.

All press releases naming this drug 30 releases

DateIssuerRelease

Evidence & citations 11 cited values

Every value below carries the sentence it was read from. 56 sources stand behind the page.

FieldValueCited text
Known as Luspatercept “Luspatercept (ACE-536)” NCT04717414 ↗
46

NCT01749514 ↗

NCT02268409 ↗

NCT05462548 ↗

NCT07338344 ↗

NCT06254781 ↗

NCT05384691 ↗

NCT07096297 ↗

NCT05924100 ↗

NCT03682536 ↗

NCT04064060 ↗

Show 36 more sources

Known as ACE-536 “Luspatercept (ACE-536), an erythroid maturation agent, is a recombinant fusion protein consisting of a modified form of the extracellular domain (ECD) of the human activin...” NCT04064060 ↗
6

“An Efficacy and Safety Study of Luspatercept (ACE-536) for the Treatment of Anemia Due to IPSS-R Very Low, Low or Intermediate Risk Myelodysplastic Syndromes (MDS) in Japanese...” NCT03900715 ↗

“Luspatercept (ACE-536) is a novel fusion protein that blocks transforming growth factor beta (TGF β) superfamily inhibitors of erythropoiesis, giving rise to a promising new...” PMID 28870615 ↗ Sep 2017

“Eligible subjects will receive luspatercept (ACE-536): starting dose of 1.0 mg/kg subcutaneous injection every 3 weeks (21 days; Q3W).” NCT05924100 ↗

“Luspatercept (ACE-536)” NCT04717414 ↗

NCT01432717 ↗

NCT04143724 ↗

Known as BMS-986346 “luspatercept (BMS-986346)” NCT03342404 ↗
Known as Luspatercept aamt ChEMBL registry synonym — accepted as the source's own label CHEMBL3039545 ↗
Known as Reblozyl “Luspatercept (Reblozyl®) is an agent that stimulates the production of red blood cells and is used to treat anemia caused by β-thalassemia.” PMID 36505885 ↗ Dec 2022
4

“Luspatercept(Reblozyl) combined with low-dose thalidomide” NCT07338344 ↗

“Drug: Luspatercept Injection [Reblozyl]” NCT05181735 ↗

“Luspatercept Injection [Reblozyl]” NCT05924100 ↗

NCT07331818 ↗

Action Inhibit “binding to transforming growth factor-β superfamily ligands and inhibiting signaling through transcription factors Smad 2/3” PMID 24715706 ↗ Apr 2014
Modality Protein / enzyme biologic “ACE-536, a recombinant protein containing a modified activin receptor type IIB” PMID 24715706 ↗ Apr 2014
Route Subcutaneous “given subcutaneously every 2 weeks” PMID 24715706 ↗ Apr 2014
Target GDF11 “Luspatercept (and sotatercept), ligand traps that particularly inhibit GDF11, lead to RBC transfusion independence in 10% to 50% of lower-risk MDSs resistant to available...” PMID 30602619 ↗ Jan 2019
Target SMAD2 “Luspatercept, a recombinant fusion protein that binds transforming growth factor β superfamily ligands to reduce SMAD2 and SMAD3 signaling, showed promising results in a phase 2 study.” PMID 31914241 ↗ Jan 2020
Target SMAD3 “Luspatercept, a recombinant fusion protein that binds transforming growth factor β superfamily ligands to reduce SMAD2 and SMAD3 signaling, showed promising results in a phase 2 study.” PMID 31914241 ↗ Jan 2020