On December 3, 2019 Bristol-Myers Squibb Company (NYSE: BMY) and Acceleron Pharma Inc. (NASDAQ: XLRN) reported the U.S. Food and Drug Administration’s (FDA) Oncologic Drugs Advisory Committee will hold a review of Bristol-Myers Squibb’s supplemental Biologics License Application (sBLA) for the use of Reblozyl (luspatercept-aamt) in patients with myelodysplastic syndromes (MDS) at its meeting on December 18, 2019 (Press release, Bristol-Myers Squibb, DEC 3, 2019, View Source [SID1234551869]). Bristol-Myers Squibb is seeking approval of Reblozyl, an erythroid maturation agent representing a new class of therapy, for the treatment of adult patients with very low- to intermediate-risk MDS-associated anemia who have ring sideroblasts and require red blood cell (RBC) transfusions.

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Reblozyl is currently being reviewed by the FDA for an indication in patients with MDS, and the agency has set a Prescription Drug User Fee Act (PDUFA), or target action, date of April 4, 2020 for completion of the review. The agency recently granted approval of Reblozyl for the treatment of anemia in adult patients with beta thalassemia who require regular RBC transfusions. Reblozyl is not indicated for use as a substitute for RBC transfusions in patients who require immediate correction of anemia.

Reblozyl is not approved for the treatment of MDS in any country.

About Anemia in Myelodysplastic Syndromes

Myelodysplastic syndromes (MDS) are a group of closely related, but diverse blood cancers in which mutations prevent the bone marrow stem cells from making healthy blood cells. Most patients experience severe chronic anemia due to the lack of mature RBCs. Anemia associated with MDS remains a significant area of unmet need for these patients, as current treatment options are limited, consisting primarily of medicines that stimulate the production of erythropoietin, and regular RBC transfusions. Regular RBC transfusions can disrupt and diminish a patient’s quality of life and are associated with an increased risk of iron overload, transfusion reactions and infections.

Bristol-Myers Squibb: Advancing Cancer Research

At Bristol-Myers Squibb, patients are at the center of everything we do. The goal of our cancer research is to increase quality, long-term survival and make cure a possibility. We harness our deep scientific experience, cutting-edge technologies and discovery platforms to discover, develop and deliver novel treatments for patients.

Building upon our transformative work and legacy in hematology and Immuno-Oncology that has changed survival expectations for many cancers, our researchers are advancing a deep and diverse pipeline across multiple modalities. In the field of immune cell therapy, this includes registrational chimeric antigen receptor (CAR) T-cell agents for numerous diseases, and a growing early-stage pipeline that expands cell and gene therapy targets, and technologies. We are developing cancer treatments directed at key biological pathways using our protein homeostasis platform, a research capability that has been the basis of our approved therapies for multiple myeloma and several promising compounds in early to mid-stage development. Our scientists are targeting different immune system pathways to address interactions between tumors, the microenvironment and the immune system to further expand upon the progress we have made and help more patients respond to treatment. Combining these approaches is key to delivering new options for the treatment of cancer and addressing the growing issue of resistance to immunotherapy. We source innovation internally, and in collaboration with academia, government, advocacy groups and biotechnology companies, to help make the promise of transformational medicines a reality for patients.

About Reblozyl (luspatercept-aamt)

Reblozyl is a first-in-class erythroid maturation agent that promotes late-stage RBC maturation in animal models. Bristol-Myers Squibb and Acceleron are jointly developing Reblozyl as part of a global collaboration. It is currently approved in the U.S. for the treatment of anemia in adult patients with beta thalassemia who require regular RBC transfusions. Reblozyl is not indicated for use as a substitute for RBC transfusions in patients who require immediate correction of anemia. A Phase 3 trial (COMMANDS) in erythroid stimulating agent-naïve, lower-risk MDS patients, the BEYOND Phase 2 trial in adult patients with non-transfusion-dependent beta thalassemia, and a Phase 2 trial in myelofibrosis patients are ongoing. For more information, please visit www.clinicaltrials.gov.

U.S. FDA-APPROVED INDICATIONS FOR REBLOZYL

REBLOZYL is indicated for the treatment of anemia in adult patients with beta thalassemia who require regular red blood cell (RBC) transfusions.

REBLOZYL is not indicated for use as a substitute for RBC transfusions in patients who require immediate correction of anemia.

Important Safety Information

WARNINGS AND PRECAUTIONS

Thrombosis/Thromboembolism

Thromboembolic events (TEE) were reported in 8/223 (3.6%) REBLOZYL-treated patients. TEEs included deep vein thrombosis, pulmonary embolus, portal vein thrombosis, and ischemic stroke. Patients with known risk factors for thromboembolism (splenectomy or concomitant use of hormone replacement therapy) may be at further increased risk of thromboembolic conditions. Consider thromboprophylaxis in patients at increased risk of TEE. Monitor patients for signs and symptoms of thromboembolic events and institute treatment promptly.

Hypertension

Hypertension was reported in 10.7% (61/571) of REBLOZYL-treated patients. Across clinical studies, the incidence of Grade 3 to 4 hypertension ranged from 1.8% to 8.6%. In patients with beta thalassemia with normal baseline blood pressure, 13 (6.2%) patients developed systolic blood pressure (SBP) >130 mm Hg and 33 (16.6%) patients developed diastolic blood pressure (DBP) >80 mm Hg. Monitor blood pressure prior to each administration. Manage new or exacerbations of preexisting hypertension using anti-hypertensive agents.

Embryo-Fetal Toxicity

REBLOZYL may cause fetal harm when administered to a pregnant woman. REBLOZYL caused increased post-implantation loss, decreased litter size, and an increased incidence of skeletal variations in pregnant rat and rabbit studies. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment and for at least 3 months after the last dose.

ADVERSE REACTIONS

Serious adverse reactions occurring in 1% of patients included cerebrovascular accident and deep vein thrombosis. A fatal adverse reaction occurred in 1 patient treated with REBLOZYL who died due to an unconfirmed case of acute myeloid leukemia (AML).

Most common adverse reactions (at least 10% for REBLOZYL and 1% more than placebo) were headache (26% vs 24%), bone pain (20% vs 8%), arthralgia (19% vs 12%), fatigue (14% vs 13%), cough (14% vs 11%), abdominal pain (14% vs 12%), diarrhea (12% vs 10%) and dizziness (11% vs 5%).

LACTATION

It is not known whether REBLOZYL is excreted into human milk or absorbed systemically after ingestion by a nursing infant. REBLOZYL was detected in milk of lactating rats. When a drug is present in animal milk, it is likely that the drug will be present in human milk. Because many drugs are excreted in human milk, and because of the unknown effects of REBLOZYL in infants, a decision should be made whether to discontinue nursing or to discontinue treatment. Because of the potential for serious adverse reactions in the breastfed child, breastfeeding is not recommended during treatment and for 3 months after the last dose.