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Study identifier: NCT05144256 Synced from ClinicalTrials.gov · August 04, 2026
● Active Not Recruiting

A Study to Evaluate the Efficacy and Safety of Mitapivat in Pediatric Participants With Pyruvate Kinase Deficiency (PKD) Who Are Regularly Transfused, Followed by a 5-Year Extension Period

Condition: Pediatric Pyruvate Kinase Deficiency · Pediatric Hemolytic Anemia  ·  Sponsor: Agios Pharmaceuticals, Inc.

PhasePhase 3
Planned participants49
Who can joinAll sexes, 1 Year to 17 Years
Healthy volunteersNo

About this study

ACTIVATE-KidsT (AG348-C-022) is a multicenter study designed to evaluate the efficacy and safety of treatment with mitapivat compared with placebo in pediatric participants with pyruvate kinase deficiency (PK deficiency) who are regularly receiving blood transfusions. Participants will be randomized 2:1 to receive either mitapivat or matching placebo. Randomization will be stratified by age (1 to \< 6 years, 6 to \< 12 years, 12 to \< 18 years) and splenectomy status. Participants will be dosed by age and weight during a double-blind period consisting of an 8-week dose titration period followed by a 24-week fixed-dose period. Participants who complete the double-blind period will be eligible to receive mitapivat in the open-label extension (OLE) period.

This description comes directly from the study's public registry record.

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No contact information is available for this study as per the public registry record.

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Locations (22)

Phoenix Children's HospitalPhoenix, Arizona, United States
Stanford MedicinePalo Alto, California, United States
Children's Healthcare of Atlanta - EmoryAtlanta, Georgia, United States
Boston Children's HospitalBoston, Massachusetts, United States
Cure 4 the Kids Foundation, A Division of Roseman University of Health SciencesLas Vegas, Nevada, United States
Weill Cornell Medical CollegeNew York, New York, United States
Children's Hospital of PhiladelphiaPhiladelphia, Pennsylvania, United States
UT Southwestern Medical CenterDallas, Texas, United States
Texas Children's HospitalHouston, Texas, United States
Comprehensive Hemophilia Care Clinic at CHEO (Children's Hospital Eastern Ontario)Ottawa, Ontario, Canada
Fakultní Nemocnice OlomoucOlomouc, Czechia
Aarhus University HospitalAarhus, Central Jutland, Denmark

+ 10 more locations — full list on the registry record.

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