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New drug cocktail aims to tame deadly transplant complication

NCT ID NCT06615050

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 3 trial compares two drug combinations given after a stem cell transplant to prevent graft-versus-host disease (GVHD), a serious complication where donor cells attack the patient's body. The study will enroll 572 adults with blood cancers like leukemia or myelodysplasia. One group gets tacrolimus, methotrexate, and ruxolitinib; the other gets cyclophosphamide, tacrolimus, and mycophenolate mofetil. The goal is to see which combination better prevents severe GVHD and improves survival.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Tacrolimus, Methotrexate, Ruxolitinib, Cyclophosphamide, Mycophenolate mofetil
What this could lead to
If successful, this could identify a better drug combination to prevent severe graft-versus-host disease after stem cell transplant, improving survival and quality of life.
What could go wrong
This is a large phase 3 trial, but the new combination may not be better than the standard one. Both regimens have significant side effects, including infection and organ damage.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 572 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2025

Expected to finish

Jan 2031

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18.0 years or older at the time of enrollment. * Participants undergoing allogeneic HCT for one of the following indications: * Acute leukemia or chronic myelogenous leukemia with no circulating blasts and with less than 5% blasts in the bone marrow. Therapy related myeloid neoplasms are allowed. * Myelodysplasia/chronic myelomonocytic leukemia with no circulating blasts and with less than 10% blasts in the bone marrow (higher blast percentage allowed in MDS due to lack of differences in outcomes with \< 5% versus 5-10% blasts in this disease). Therapy related myeloid neoplasms are allowed. * Lymphoma \[follicular lymphoma, Hodgkin lymphoma, diffuse large B cell lymphoma, mantle cell lymphoma, peripheral T-cell lymphoma, angioimmunoblastic T-cell lymphoma and anaplastic large cell lymphoma\]. * Planned NMA/reduced intensity conditioning regimen. * Participants must have a related or unrelated PBSC donor as follows: * Sibling donor must be a 6/6 match for HLA-A and -B at intermediate (or higher) resolution, and -DRB1 at high resolution using DNA-based typing and must be willing to donate peripheral blood stem cells and meet institutional criteria for donation. HLA-matched parents and children may be used as donors. * Unrelated donor must be a 7/8 or 8/8 match at HLA-A, -B, -C and -DRB1 at high resolution using DNA-based typing. Unrelated donor must be willing to donate peripheral blood stem cells and meet NMDP criteria for donation. * Donor selection must comply with 21 CFR 1271. * Cardiac function: Left ventricular ejection fraction at least 45%. * Estimated glomerular filtration rate greater than 60 ml/min/1.73 m2 using the 2021 CKD-EPI formula Note: For eligibility, GFR by 2021 CKD-EPI is required. A baseline creatinine clearance by Cockcroft-Gault should be done to establish baseline CrCl for ruxolitinib dosing. * Pulmonary function: DLCO corrected for hemoglobin at least 40% and FEV1 predicted at least 50%. * Liver function: AST/ALT \< 3x ULN; Total bilirubin \< 2 mg/dL excluding Gilbert's syndrome or hemolysis. * Karnofsky Performance Score of at least 60%. * Female participants (unless postmenopausal for at least one year before the screening visit, or surgically sterilized), agree to practice two effective methods of contraception at the same time, or agree to completely abstain from heterosexual intercourse, from the time of signing the informed consent through 15 months post-transplant. Fertility preservation methods will be left to institutional standards. * Male participants (even if surgically sterilized), of partners of women of childbearing potential must agree to one of the following: practice effective barrier contraception or abstain from heterosexual intercourse from the time of signing the informed consent through 15 months post-transplant. * Plans for the use of targeted small molecule inhibitor post-transplant maintenance therapy must be disclosed upon enrollment and must be used irrespective of the outcome of the randomization. Planned use of investigational maintenance agents is not permitted. Planned hypomethylating agents as maintenance therapy is not permitted. * Voluntary written consent obtained prior to the performance of any study-related procedure that is not a part of standard medical care, with the understanding that consent may be withdrawn by the participant at any time without prejudice to future medical care. Exclusion Criteria: * Prior allogeneic transplant. * Active CNS involvement by malignant cells. * Participants with secondary AML arising from myeloproliferative neoplasms or secondary AML arising from overlap syndromes, including CMML and MDS/MPN syndromes; participants with secondary AML arising from myelodysplastic neoplasm are eligible. * Participants with primary, post-Essential Thrombocythemia (post-ET) and post-Polycythemia Vera (post-PV) myelofibrosis. * Participants with uncontrolled bacterial, viral, or fungal infections (currently taking medication and with progression or no clinical improvement) at time of enrollment. * Active or inadequately treated latent infection with Mycobacterium tuberculosis (i.e., TB). * Presence of clinically significant fluid collection (ascites, pleural or pericardial effusion) that interferes with methotrexate clearance or makes methotrexate use contraindicated. * Participants seropositive for human immunodeficiency virus (HIV) with detectable viral load. HIV+ participants with an undetectable viral load on antiviral therapy are eligible. * Evidence of uncontrolled hepatitis B virus (HBV) or hepatitis C virus (HCV). The study allows: * Positive HBV serology with undetectable viral load and ongoing antiviral prophylaxis to prevent potential HBV reactivation. * Positive HCV serology with quantitative PCR for plasma HCV RNA below the lower limit of detection, with or without concurrent antiviral HCV treatment. * Arterial or venous thrombosis including DVT, PE, stroke, and myocardial infarction within six (6) months prior to enrollment or New York Heart Association (NYHA) Class III or IV heart failure, uncontrolled angina, severe uncontrolled ventricular arrhythmias, or electrocardiographic evidence of acute ischemia. Catheter-associated DVT is not exclusionary. * Female participants who are pregnant (as per institutional practice) or lactating. * Participants with a serious medical or psychiatric illness likely to interfere with participation in this clinical study. * Participants with prior malignancies except resected non-melanoma skin cancer 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 Protocol Officer or Chairs. * Planned use of ATG or alemtuzumab in conditioning regimen. * Planned use of prophylactic donor leukocyte infusions. * Prior use of ruxolitinib. * Prior use of immune checkpoint inhibitors (i.e., PD1, PDL1, CTLA4 modulators) within six (6) months prior to conditioning. * For participants with 7/8 HLA-matched donors: * Donor specific antibodies (DSAs) directed at the mismatched donor allele. * Any use of desensitization protocols. * Treatment with any other Investigational Medicinal Product (IMP) is not allowed while on study treatment. An IMP is defined as medications without any known FDA or EMA approved indications.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    30 sites. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Email: •••••@•••••

Locations

  • Baylor College of Medicine

    RECRUITING

    Houston, Texas, 77030, United States

  • Blood and Marrow Transplant Group of Georgia

    RECRUITING

    Atlanta, Georgia, 30342, United States

  • Cleveland Clinic

    RECRUITING

    Cleveland, Ohio, 44195, United States

  • Dana Farber Cancer Institute

    RECRUITING

    Boston, Massachusetts, 02215, United States

  • Duke University Medical Center

    RECRUITING

    Durham, North Carolina, 27705, United States

  • Fred Hutchinson Cancer Research Center

    RECRUITING

    Seattle, Washington, 98109, United States

  • Henry Ford Hospital

    RECRUITING

    Detroit, Michigan, 48202, United States

  • Indiana University Cancer Center

    RECRUITING

    Indianapolis, Indiana, 46202, United States

  • Karmanos Cancer Institute

    RECRUITING

    Detroit, Michigan, 48201, United States

  • Levine Cancer Institute

    RECRUITING

    Charlotte, North Carolina, 28204, United States

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02114, United States

  • Medical College of Wisconsin

    RECRUITING

    Milwaukee, Wisconsin, 53226, United States

  • Medical University of South Carolina

    RECRUITING

    Charleston, South Carolina, 29425, United States

  • Memorial Sloan Kettering

    RECRUITING

    New York, New York, 10065, United States

  • Moffitt Cancer Center

    RECRUITING

    Tampa, Florida, 33612, United States

  • Mount Sinai Hospital

    RECRUITING

    New York, New York, 10029, United States

  • Ohio State University

    RECRUITING

    Columbus, Ohio, 43210, United States

  • Oregon Health & Science University

    RECRUITING

    Portland, Oregon, 97239, United States

  • Sarah Cannon

    RECRUITING

    Nashville, Tennessee, 37203, United States

  • Stanford Cancer Center

    RECRUITING

    Palo Alto, California, 94304, United States

  • University of California San Francisco

    RECRUITING

    San Francisco, California, 94158, United States

  • University of Kansas Hospital Authority

    RECRUITING

    Kansas City, Kansas, 66160, United States

  • University of Miami

    RECRUITING

    Miami, Florida, 33136, United States

  • University of Michigan

    RECRUITING

    Ann Arbor, Michigan, 48109, United States

  • University of North Carolina At Chapel Hill

    RECRUITING

    Chapel Hill, North Carolina, 27514, United States

  • University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • University of Wisconsin

    RECRUITING

    Madison, Wisconsin, 53705, United States

  • Vanderbilt Medical Center

    RECRUITING

    Nashville, Tennessee, 37232, United States

  • Virginia Commonwealth University, North Hospital

    RECRUITING

    Richmond, Virginia, 23298, United States

  • Washington University

    RECRUITING

    St Louis, Missouri, 63110, United States

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