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Active Not RecruitingNCT04872595

A Modified Dose of Rabbit Anti-thymocyte Globulin (rATG) in Children and Adults Receiving Treatment to Help Prepare Their Bodies for a Bone Marrow Transplant

Phase 2 Study of Personalized r-ATG Dosing to Improve Survival Through Enhanced Immune Reconstitution in Pediatric and Adult Patients Undergoing Ex-vivo CD34-Selected Allogeneic-HCT (PRAISE-IR)

Status
Active Not Recruiting
Phase
Phase 2
Study type
Interventional
Enrollment
59 (actual)
Sponsor
Memorial Sloan Kettering Cancer Center · Academic / Other
Sex
All
Age
4 Years
Healthy volunteers
Not accepted

Summary

The purpose of this study is to see if conditioning regimens that include personalized rabbit ATG (P-rATG) help the immune system recover sooner and decrease the chances of transplant-related side effects. Participants in this study will be children and adults who have acute leukemia or myelodysplastic syndrome (MDS), and will receive a standard conditioning regimen to prepare the body for an allogeneic hematopoietic cell transplant (allo-HCT). The conditioning regimen will include r-ATG, one of two combinations of chemotherapy, and possibly total body irradiation (TBI).

Conditions

Interventions

TypeNameDescription
OTHERPersonalized rATG (P-rATG)P-rATG days (always starting on Day -12 to -10)
RADIATIONHyper fractionated total body irradiation(1375 - 1500cGy\*) Day -9 to -6 \*TBI dose in 125cGy fractions (with lung shielding) and total dose to be determined by treating physician/radiation oncology and is based off age, stage of disease, and anesthesia requirements.
DRUGThiotepa(5mg/kg/day x 2 day) Day -5 to -4
DRUGCyclophosphamide(60mg/kg/day x 2 days) Day -3 to -2
DRUGGCSFDay +7
DRUGBusulfanDay -9 to -7 doses 2-3 to be adjusted per PK for target cumulative exposure of 65 mg\*h/L
DRUGMelphalan(70mg/m2/day x 2 days) Day -6 to -5
DRUGFludarabine(25mg/m2/day x 5 days) Day -6 to -2

Timeline

Start date
2021-04-30
Primary completion
2026-04-01
Completion
2026-04-01
First posted
2021-05-04
Last updated
2025-09-04

Locations

1 site across 1 country: United States

Regulatory

Source: ClinicalTrials.gov record NCT04872595. Inclusion in this directory is not an endorsement.