TACTICAL: TACrolimus Targeted Immunosuppression Cessation in ALlogeneic HCT
Stanford University
Summary
The purpose of this study is to test the feasibility and safety of early cessation of tacrolimus following allogeneic hematopoietic cell transplantation (HCT). Post-HCT tacrolimus is given to prevent graft-vs-host-disease (GVHD), but with the use of post-transplant cyclophosphamide (PTCy), the modern approach to GVHD prevention, GVHD rates have reduced markedly.
Eligibility
- Age range
- 18–80 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Eligible diseases: * Acute myeloid leukemia (AML) in complete remission (CR), CR with incomplete hematologic recovery (CRi), or MLFS. * Myelodysplasic syndrome (MDS) myelodysplastic syndromes eligible for alloHSCT based on IPSS-M of intermediate or higher, or IPSS-R of intermediate or higher, or refractory disease to standard growth factor or hypomethylating agent-based therapy * Myelofibrosis (MF) * Chronic myeloid leukemia (CML) in chronic phase with a prior history of accelerated phase or blast crisis or CML in chronic phase refractory to standard TKI therapy…
Interventions
- DrugTacrolimus
Tacrolimus is initiated on Day 5 post-HCT and transitioned to oral dosing once therapeutic levels are achieved. Oral tacrolimus is given in 0.5 mg increments up to twice daily. Levels are monitored several times weekly to target a trough of 5-10 ng/mL.
- OtherEarly Tacrolimus Taper Strategy
Eligible participants begin a taper on Day 60 (±5 days), reducing the tacrolimus dose by \~20% weekly, rounded to 0.5 mg, with planned discontinuation by Day 88 (±5 days). Tapering stops if significant acute GVHD develops or if unsafe.
Location
- Stanford UniversityPalo Alto, California