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ATG Plus PTCy vs ATG for CGVHD Prophylaxis

NCT04202835

Active Not RecruitingPhase 2

Sponsor: McMaster University

Conditions: Acute Leukemia, Myelodysplasia, Chronic Graft-versus-host-disease

Interventions: Cyclophosphamide, Anti-Thymocyte globulin (rabbit)

Countries: Australia, Canada

A Randomized Pilot Trial to test the feasibility of comparing anti-thymocyte globulin plus post transplant cyclophosphamide with anti-thymocyte globulin alone to prevent chronic graft versus host disease.

Eligibility overview

Sex: ALL

Age: 16 Years to 70 Years

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria

Inclusion Criteria:

1. The participant is aged ≥ 16 and deemed medically fit per investigator for protocol
2. The participant has either acute myeloid leukemia in 1st or 2nd complete remission (CR), or has myelodysplastic syndrome
3. The participant will receive a blood progenitor cell graft ("HPC, Apheresis")
4. The participant has a related or unrelated donor, who is fully MHC matched with the recipient at HLA-A, B, C and DRB1.
5. The participant meets the transplant centre's criteria for transplantation, using either myeloablative or reduced intensity conditioning.
6. The participant has good performance status (Karnofsky ≥60%)
7. The participant is able to understand and sign the informed consent form
8. Ability and willingness to comply with study procedures and schedule, in the Investigator's opinion.
9. The participant is receiving their first transplant

Exclusion Criteria:

1. The participant is HIV antibody positive
2. The participant has a hypersensitivity to rabbit proteins or Thymoglobulin® pharmaceutical excipients, glycine or mannitol.
3. The participant has active or chronic infection (i.e. infection requiring oral or IV therapy)
4. The participant (if female and of childbearing potential) is pregnant or breast-feeding at the time of enrollment
5. The participant (if female and of childbearing potential) does not agree to use an adequate contraceptive method from the time of enrollment until a minimum of one year following transplant3
6. The participant (if male and fertile) does not agree to use an adequate contraceptive method from the time of enrollment until a minimum of one year following transplant3
7. The participant has urinary outflow obstruction
8. The participant is in poor condition (determined per institutional guidelines)
9. The participant has acute leukemia in relapse
10. The participant has myelodysplastic syndrome with \> 10% marrow blasts
11. The participant is having their second transplant
12. The participant is taking T-cell antibody prophylaxis (anti-CD52)
13. The participant is receiving a cord blood graft or T-cell depleted grafts
14. The participant has mixed phenotype acute leukemia
15. The participant has prior malignancies, except resected nonmelanoma or treated cervical carcinoma in situ. Cancer treated with curative intent ≥ 5 years previously will be allowed. Cancer treated with curative intent \< 5 years previously must be reviewed and approved by the sponsors.
16. The participant is in complete remission with incomplete recovery (CRi)

Locations (9)

Darlinghurst, New South Wales, Australia
St Leonards, New South Wales, Australia
Melbourne, Victoria, Australia
Winnipeg, Manitoba, Canada
Halifax, Nova Scotia, Canada
Hamilton, Ontario, Canada
London, Ontario, Canada
Québec, Quebec, Canada
Saskatoon, Saskatchewan, Canada