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A Randomized Double-Blind Trial of Abatacept Extended Dosing Versus Abatacept Short-term Dosing for Graft Versus Host Disease Prophylaxis: ABA3

  • Protocol Number: 202203135
  • Principal Investigator: Shenoy, Shalini
  • Cancer Types: Siteman Kids- Pediatrics

Learn more about this study at: clinicaltrials.gov

For more information on this trial, contact us here:

Phone
800-600-3606
Email
[email protected]

Brief Summary

This is a multicenter randomized, double blind, Phase 2 trial for patients receiving transplants from 7 of 8 HLA matched donors, in which an extended dosing regimen of abatacept, and a short-term dosing regimen + placebo, when added to standard calcineurin inhibitor + methotrexate-based prophylaxis, will be compared for their ability to improve outcomes in patients with a minimum follow-up of one year post-transplant. All patients will receive 4 doses of abatacept (Days -1, +5, +14, +28). Prior to the fifth dose, patients will be randomly assigned to the 4-dose abatacept arm and receive 4 doses of placebo or 8-dose abatacept arm and receive 4 more doses of abatacept. The primary endpoint of the study will be severe AGVHD-free, severe CGVHD-free, relapse-free survival (SGRFS). The study will end when the last patient has reached 2 years after transplant. Results will first be calculated and the study unblinded when the last patient has reached one year post-transplant.

Protocol Interventions

Placebo, Abatacept