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A Phase 2 Open-label Study to Evaluate the Activity of Etavopivat on Transcranial Doppler Velocities in Pediatric Patients With Sickle Cell Disease Who Are at Increased Risk for Primary Stroke

NCT05953584 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 27

Last updated 2025-09-18

No results posted yet for this study

Summary

The study will test a new medicine, etavopivat, for sickle cell disease and see if it is safe and help-ful for participants with sickle cell disease who are at an increased risk of stroke. Participants will be divided into two cohorts depending on their transcranial doppler (TCD) ultrasound results and whether or not they receive hydroxyurea (medication that they may already be taking). In one cohort, participants with conditional transcranial doppler (TCD) or participants with abnormal TCD who are not able to receive hydroxyurea will be included. The study doctor will determine if the TCD result is conditional or abnormal. In another cohort, participants with conditional TCD or participants with abnormal TCD who are receiving a stable dose of hydroxyurea will be included. The study doctor will determine if the TCD result is conditional or abnormal. The participant will start a 52-week (1 year) treatment period. The participant will take 400 milligrams (mg) of etavopivat once a day for the 52 weeks. The dose of 400 mg will be taken as 2 tablets by mouth, each containing 200 mg of etavopivat. Etavopivat may be taken with or without food. Each dose should be taken with a glass of water. As part of the study, the participants will be asked to visit the clinic frequently. The participant will have the opportunity to participate in a 48-week optional extension treatment period. The optional extension treatment period will allow continued as-sessment of safety of etavopivat in paediatric patients. At the end of the study, if deemed appro-priate the participant, the caregiver, and the study doctor, the participant may be offered the op-portunity to participate in a separate study to continue receiving etavopivat. If/when this separate study becomes available, the participant may only transfer to the new study after completion of the 52-week primary treatment period and at any time during the 48-week optional extension treatment period.

Conditions

Interventions

DRUG

Etavopivat

Participants will receive a dose of 400 mg (two 200 mg oral tablets) etavopivat once daily.

DRUG

Hydroxyurea

Participants will receive a stable dose of HU.

Sponsors & Collaborators

  • Forma Therapeutics, Inc.

    lead INDUSTRY

Principal Investigators

  • Clinical Transparency (dept. 2834) · Novo Nordisk A/S

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
12 Years
Max Age
16 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-06-20
Primary Completion
2027-09-20
Completion
2027-09-20
FDA Drug
Yes

Countries

  • India
  • Nigeria
  • Oman

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05953584 on ClinicalTrials.gov