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A Study of Etavopivat for the Treatment of Anemia in Patients With Myelodysplastic Syndromes (MDS)

Phase 2
Terminated
Conditions
Very Low Risk, Low Risk, or Intermediate Risk MDS Per IPSS-R
Interventions
Registration Number
NCT05568225
Lead Sponsor
Forma Therapeutics, Inc.
Brief Summary

The purpose of this study is to evaluate the safety and efficacy of etavopivat (FT-4202) for the treatment of anemia in adult patients with very low risk, low risk, or intermediate risk MDS.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
45
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Etavopivat 400 mg QD dailyEtavopivatNon-transfusion dependent (NTD), Low transfusion burden (LTB) , and High transfusion burden (HTB) patients
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With Hematologic Improvement- Erythroid (HI-E) Response for >=8 Weeks Within 24 Weeks of Etavopivat TreatmentFrom Baseline to Week 24

This outcome measure reported on the combined incidence of NTD, LTB and HTB in terms of (HI-E) response for \>=8 weeks duration in participants with myelodysplastic syndromes (MDS) within 24 weeks. The participants were allocated to the following arms which were defined as: 1) NTD: \>=1.5 grams per deciliter (g/dL) increase in haemoglobin (Hb) from baseline maintained \>=8 consecutive weeks and no transfusion of RBC units for anemia over a continuous 8-week treatment period; 2) LTB: absence of any transfusion for \>=8 consecutive weeks; and 3) HTB: reduction by \>=50 percent (%) of RBC units for \>=8 consecutive weeks.

Secondary Outcome Measures
NameTimeMethod
Percentage of Participants With Hematologic Improvement-Erythroid (HI-E) Response for =>8 Weeks Within 16 and 48 Weeks of Etavopivat48 weeks

This outcome measure focused on the combined incidence of NTD, LTB and HTB participants, evaluating HI-E lasting =\>8 weeks in individuals with MDS within 16 weeks and 48 weeks. Participant's response were defined as follows: 1) NTD: an increase of =\>1.5 g/dL in Hb maintained for =\>8 consecutive weeks without any RBC transfusions for anemia; 2) LTB: no transfusions over =\>8 consecutive weeks; and 3) HTB: a reduction of =\>50% in RBC units for =\>8 consecutive weeks.

Percentage of Participants With Hematologic Improvement- Erythroid (HI-E) Response for =>16 Weeks Within 24 and 48 Weeks of Etavopivat48 weeks

This outcome measure focused on the combined incidence of NDT, LTB and HTB participants, evaluating HI-E response lasting =\>16 weeks in individuals with MDS within 24 weeks and 48 weeks. Participant's response were defined as follows: 1) NTD: an increase of =\>1.5 g/dL in Hb maintained for =\>16 consecutive weeks without any RBC transfusions for anemia; 2) LTB: no transfusions over =\>16 consecutive weeks; and 3) HTB: a reduction of =\>50% in RBC units for =\>16 consecutive weeks.

Number of All Adverse Events (AEs), Serious Adverse Events (SAEs), and AEs Related to EtavopivatFrom baseline up to 48 weeks

This outcome measures the total number of AEs and SAEs in participants, including AEs related to etavopivat. AEs are any unfavorable medical occurrences in participants taking the medicinal product, regardless of causality. They include new or worsening symptoms, abnormal lab findings, and exacerbations of existing conditions, documented from the first dose through 28 days after the last dose. SAEs are severe AEs that result in death, are life-threatening, require hospitalization, lead to significant disability, or involve congenital anomalies. Important medical events posing risks to the participants are also classified as SAEs. Treatment Emergent Adverse Events (TEAEs) are AEs occurring after treatment initiation, aiding in the safety assessment of etavopivat. TEAEs will be considered drug-related if assessed by the Investigator as possibly related or related, or if relationship is missing.

Overall Response RateUp to 48 weeks

The Overall Response Rate (ORR) is defined as the percentage of participants who achieve a predefined level of response according to the 2006 International Working Group (IWG) criteria, assessed at each scheduled evaluation.

Number of Premature Discontinuations, Dose Interruptions, and Dose ReductionsWithin 48 weeks

The outcome measures the total number of premature discontinuations, dose interruptions and dose reductions. Premature discontinuation was defined as any discontinuation prior to week 48. A dose interruption is a temporary halt in treatment due to an AE, while a dose reduction involves lowering the dosage of the drug when AEs occur. If a participant tolerates a reduced dose for 14 days, a rechallenge with the original dose may occur after a clinic visit, but any new Grade 3 or higher AEs require treatment discontinuation and consultation with the Global Medical Monitor before resuming.

Percent Change From Baseline in RBC Transfusion Independence for =>8 Weeks in Participants With LTB or HTB at Study EntryUp to 48 weeks

This outcome measure is percent change in RBC transfusion by 8-week interval in participants with LTB and HTB. Percent reduction from baseline in RBC transfusion burden is defined as -100×(Total RBC Units Transfused During Interval)/(Baseline RBC Units Transfused Per 8 Weeks).

Duration of ResponseUp to 48 weeks

This outcome measure reported duration of response which was defined as duration of response will be summarized with quantiles based on product limit estimates (ie, Kaplan-Meier). Duration of response is defined as the time from date of first known incidence of a 2006 IWG criteria response to the most recent date that the 2006 IWG (International Working Group) criteria is not met following the initial response. If the participant has met IWG criteria throughout the period following the initial response, the participant will be censored at the latest date of end of study, loss to follow-up, or death.

Reduction in RBC Transfusions for >=8 Weeks in Participants With LTB or HTB at Study EntryUp to 48 weeks

This outcome measure reports reduction in RBC transfusion by 8-week interval in participants with LTB and HTB.

Change From Baseline in Neutrophils and/or Platelets CountsBaseline (week 0), week 48

This outcome measure reports the change from baseline in neutrophils and/or platelets counts from baseline to week 48

Overall SurvivalWithin 48 weeks

Overall survival is defined as the time from first dose to date of death. If the participant was alive at last contact, the end date will be censored at the latest of either end of study, loss to follow-up, or study discontinuation.

Decrease in Ferritin and Transferrin Saturation (TSAT)Up to 48 weeks

This outcome measure were to report decrease in ferritin and TSAT from baseline to Week 48.

Decrease in Iron Chelation Therapyup to 48 weeks

This outcome measure were to report decrease of Iron chelation therapy and will be recorded at Screening and on an ongoing basis throughout the study.

Etavopivat Plasma ConcentrationsWeeks 1 and 4 pre-dose, post-dose 1, 2, 4, 6 hours.Week 2 and EOT (week 48):pre-dose, post-dose 1, 2 hours

This outcome measure reported Etavopivat plasma concentrations in order to assess the PK properties of etavopivat in participants with MDS. PK parameters included but not limited to were: Time to maximum observed plasma concentration, area under the plasma concentration-time curve from time zero until the last quantifiable time point (AUC0-last), from time zero to infinity (AUC0-inf), for a dosing interval (AUCtau/AUC0-24).) However due to early termination of the study, the PK parameters were not assessed and only the plasma concentrations could be assessed.

RBC 2,3-diphosphoglycerate (2,3-DPG) and Adenosine Triphosphate (ATP) Levels Over TimeWithin 48 weeks

Etavopivat plasma concentrations were collected in order to assess the pharmacodynamic (PD) properties of etavopivat in participants with MDS.

Trial Locations

Locations (18)

University of Miami Hospital and Clinics

🇺🇸

Miami, Florida, United States

Ocala Oncology

🇺🇸

Ocala, Florida, United States

Cedars-Sinai Medical Center

🇺🇸

Plainsboro, New Jersey, United States

Northwell Health

🇺🇸

Plainsboro, New Jersey, United States

Northwestern Memorial Hospital

🇺🇸

Plainsboro, New Jersey, United States

The Ohio State University Medical Center

🇺🇸

Plainsboro, New Jersey, United States

NYU Langone Health

🇺🇸

New York, New York, United States

Columbia University Irving Medical Center

🇺🇸

New York, New York, United States

University of British Columbia - St. Paul's Hospital

🇨🇦

Vancouver, British Columbia, Canada

Nice University Hospital - Hôpital de l'Archet

🇫🇷

Route de Saint-Antoine, Nice, France

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University of Miami Hospital and Clinics
🇺🇸Miami, Florida, United States

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