~46 spots leftby Apr 2026

Mitapivat for Thalassemia

(ENERGIZE Trial)

Recruiting at 108 trial locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 3
Waitlist Available
Sponsor: Agios Pharmaceuticals, Inc.
Pivotal Trial (Near Approval)
Prior Safety Data

Trial Summary

What is the purpose of this trial?

This trial is testing mitapivat, a drug that may help improve anemia by making red blood cells healthier and last longer. It targets patients with a specific type of thalassemia who don't need regular blood transfusions but still suffer from anemia.

Research Team

MA

Medical Affairs

Principal Investigator

Agios Pharmaceuticals, Inc.

Eligibility Criteria

This trial is for individuals with alpha- or beta-non-transfusion dependent thalassemia (NTDT) who have stable hemoglobin levels ≤10.0 g/dL and haven't had more than 5 blood transfusions in the past 24 weeks. Participants must not be pregnant, breastfeeding, or have certain other health conditions like uncontrolled heart disease, severe kidney issues, or active infections.

Inclusion Criteria

I have not needed more than 5 blood transfusions in the last 6 months and none in the last 2 months.
I have been diagnosed with thalassemia based on specific blood tests or DNA analysis.
My hydroxyurea dose has been the same for at least 16 weeks.
See 3 more

Exclusion Criteria

Participants with any condition(s) that could create undue influence (including but not limited to incarceration, involuntary psychiatric confinement, and financial or familial affiliation with the Investigator or Sponsor)
Current enrollment or past participation (≤12 weeks before administration of the first dose of study drug or a timeframe equivalent to 5 half-lives of the investigational study drug, whichever is longer) in any other clinical study involving an investigational treatment or device
I do not have any health conditions that my doctor thinks would make this study unsafe for me.
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Treatment Details

Interventions

  • Mitapivat (Activator of Pyruvate Kinase-R)
  • Placebo Matching Mitapivat (Drug)
Trial OverviewThe study is testing Mitapivat against a placebo to see if it helps improve anemia in people with NTDT. Patients will either receive the actual drug or a placebo that has no therapeutic effect to compare outcomes between the two groups.
Participant Groups
2Treatment groups
Experimental Treatment
Placebo Group
Group I: MitapivatExperimental Treatment1 Intervention
Mitapivat 100 milligrams (mg), orally, twice daily (BID) for 24 weeks in double blind (DB) period and for up to 5 years in open label extension (OLE) period.
Group II: PlaceboPlacebo Group2 Interventions
Placebo matching mitapivat, orally, BID for 24 weeks in double blind period followed by Mitapivat 100 mg, orally, BID for up to 5 years in open label extension period.

Find a Clinic Near You

Who Is Running the Clinical Trial?

Agios Pharmaceuticals, Inc.

Lead Sponsor

Trials
55
Recruited
4,200+