NCT07359859

Brief Summary

The researchers are doing this study to compare 2 different GVHD prevention (prophylaxis) approaches. The researchers will see which approach is good or more effective at preventing chronic GVHD until 1 year after allogeneic hematopoietic stem cell transplantation (allo-HCT).

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for phase_2

Timeline
32mo left

Started Jan 2026

Typical duration for phase_2

Geographic Reach
1 country

7 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress10%
Jan 2026Jan 2029

Study Start

First participant enrolled

January 20, 2026

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

January 21, 2026

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 22, 2026

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2029

Last Updated

February 17, 2026

Status Verified

February 1, 2026

Enrollment Period

3 years

First QC Date

January 21, 2026

Last Update Submit

February 13, 2026

Conditions

Keywords

graft-versus-host disease (GVHD)allogeneic hematopoietic stem cell transplant (allo-HCT)

Outcome Measures

Primary Outcomes (1)

  • assess cGVHD-free survival

    Chronic GVHD-free survival is defined as moderate-to-severe cGVHD requiring systemic immunosuppression treatment from the date of allo-HCT to first occurrence with follow-up through 12 months post-HCT or death.

    1 year post-HCT

Secondary Outcomes (1)

  • incidence of grade 2-4 infections.

    1 year

Study Arms (2)

An intermediate dose (medium dose) of PTCY, tacrolimus, MMF, and the drug ruxolitinib

EXPERIMENTAL

will receive an intermediate (medium) dose of PTCY, tacrolimus, MMF,and ruxolitinib

Drug: CyclophosphamideDrug: Mycophenolate MofetilDrug: RuxolitinibDrug: Tacrolimus

A full dose of PTCY, tacrolimus, and MMF (the standard GVHD prevention approach)

ACTIVE COMPARATOR

will receive a full dose of PTCY, tacrolimus, and MMF (the standard GVHD prevention approach)

Drug: CyclophosphamideDrug: Mycophenolate MofetilDrug: Tacrolimus

Interventions

An intermediate dose (medium dose) of Post-transplant Cyclophosphamide

An intermediate dose (medium dose) of PTCY, tacrolimus, MMF, and the drug ruxolitinib

Day +5 to +35

Also known as: MMF
A full dose of PTCY, tacrolimus, and MMF (the standard GVHD prevention approach)An intermediate dose (medium dose) of PTCY, tacrolimus, MMF, and the drug ruxolitinib

twice a day

An intermediate dose (medium dose) of PTCY, tacrolimus, MMF, and the drug ruxolitinib

Day +5, taper per SoC

A full dose of PTCY, tacrolimus, and MMF (the standard GVHD prevention approach)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients ≥18- years-old at time of consent
  • Diagnosis: hematologic malignancy in morphologic remission (blasts \<5%, no evidence of extramedullary disease in AML or MDS). Patients with CR with incomplete count recovery (CRp or CRi) or minimal residual disease are allowed. Patients with lymphoma must have a complete or partial response
  • Donor: related or unrelated 7-8/8 HLA-matched or related haploidentical
  • Karnofsky score ≥ 70%
  • Female subjects of childbearing potential (\<50 years old) have a negative serum or urine pregnancy test. Females of childbearing potential are defined as females without prior hysterectomy or who have had any evidence of menses in the past 12 months.
  • °Sexually active females of childbearing potential enrolled in the study must agree to consistently use two forms of accepted methods of contraception during the course of the study and for 3 months after their last dose of the study drug. Effective birth control includes: \*Intrauterine device (IUD) plus one barrier method \*Stable doses of hormonal contraception for at least 3 months (e.g., oral, injectable, implant, transdermal) plus one barrier method \*2 barrier methods. Effective barrier methods are male or female condoms, diaphragms, and spermicides (creams or gel that contain a chemical to kill sperm); or \* A vasectomized partner.
  • For male subjects who are sexually active and who are partners of females of childbearing potential: Agreement to use two forms of contraception as per above and to not donate sperm during the treatment period and for at least 3 months after the last dose of study drug

You may not qualify if:

  • Recipient of CD34+ selected or engineered stem cell graft
  • Treatment with in vivo T cell depletion (e.g. anti-thymocyte globulin)
  • Severely impaired renal function defined by serum creatinine \> 2mg/dL, renal dialysis requirement.
  • Use of investigational agent within 14 days pre-HCT
  • Evidence of current uncontrolled cardiovascular conditions, including uncontrolled hypertension, uncontrolled cardiac arrhythmias, symptomatic congestive heart failure, unstable angina, or myocardial infarction within the past 6 months
  • Uncontrolled psychiatric illness
  • Female patient who is pregnant or breastfeeding
  • Known allergy or sensitivity to ruxolitinib

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)

Basking Ridge, New Jersey, 07920, United States

RECRUITING

Memorial Sloan Kettering Monmouth (Limited Protocol Activities)

Middletown, New Jersey, 07748, United States

RECRUITING

Memorial Sloan Kettering Bergen (Limited Protocol Activities)

Montvale, New Jersey, 07645, United States

RECRUITING

Memorial Sloan Kettering Suffolk-Commack (Limited Protocol Activities)

Commack, New York, 11725, United States

RECRUITING

Memorial Sloan Kettering Westchester (Limited Protocol Activities)

Harrison, New York, 10604, United States

RECRUITING

Memorial Sloan Kettering Cancer Center (All Protocol Activities)

New York, New York, 10065, United States

RECRUITING

Memorial Sloan Kettering Nassau (Limited Protocol Activites)

Rockville Centre, New York, 11553, United States

RECRUITING

Related Links

MeSH Terms

Conditions

Hematologic NeoplasmsGraft vs Host Disease

Interventions

CyclophosphamideMycophenolic AcidruxolitinibTacrolimus

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsHematologic DiseasesHemic and Lymphatic DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

Phosphoramide MustardsNitrogen Mustard CompoundsMustard CompoundsHydrocarbons, HalogenatedHydrocarbonsOrganic ChemicalsPhosphoramidesOrganophosphorus CompoundsCaproatesAcids, AcyclicCarboxylic AcidsFatty AcidsLipidsMacrolidesLactones

Study Officials

  • Doris Ponce, MD, MS

    Memorial Sloan Kettering Cancer Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Doris Ponce, MD, MS

CONTACT

Brian Shaffer, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 21, 2026

First Posted

January 22, 2026

Study Start

January 20, 2026

Primary Completion (Estimated)

January 1, 2029

Study Completion (Estimated)

January 1, 2029

Last Updated

February 17, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will share

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made following one year after publication and for up to 36 months later. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Locations