New drug cocktail aims to tame deadly transplant complication
NCT ID NCT06615050
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 572 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2025
- Expected to finish
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Jan 2031
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
30 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
Show contact details
Enter your email to view the contact information for this study.
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Study contacts
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Contact
Email: •••••@•••••
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Contact
Email: •••••@•••••
Locations
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Baylor College of Medicine
RECRUITINGHouston, Texas, 77030, United States
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Blood and Marrow Transplant Group of Georgia
RECRUITINGAtlanta, Georgia, 30342, United States
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Cleveland Clinic
RECRUITINGCleveland, Ohio, 44195, United States
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Dana Farber Cancer Institute
RECRUITINGBoston, Massachusetts, 02215, United States
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Duke University Medical Center
RECRUITINGDurham, North Carolina, 27705, United States
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Fred Hutchinson Cancer Research Center
RECRUITINGSeattle, Washington, 98109, United States
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Henry Ford Hospital
RECRUITINGDetroit, Michigan, 48202, United States
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Indiana University Cancer Center
RECRUITINGIndianapolis, Indiana, 46202, United States
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Karmanos Cancer Institute
RECRUITINGDetroit, Michigan, 48201, United States
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Levine Cancer Institute
RECRUITINGCharlotte, North Carolina, 28204, United States
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
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Medical College of Wisconsin
RECRUITINGMilwaukee, Wisconsin, 53226, United States
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Medical University of South Carolina
RECRUITINGCharleston, South Carolina, 29425, United States
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Memorial Sloan Kettering
RECRUITINGNew York, New York, 10065, United States
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Moffitt Cancer Center
RECRUITINGTampa, Florida, 33612, United States
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Mount Sinai Hospital
RECRUITINGNew York, New York, 10029, United States
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Ohio State University
RECRUITINGColumbus, Ohio, 43210, United States
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Oregon Health & Science University
RECRUITINGPortland, Oregon, 97239, United States
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Sarah Cannon
RECRUITINGNashville, Tennessee, 37203, United States
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Stanford Cancer Center
RECRUITINGPalo Alto, California, 94304, United States
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University of California San Francisco
RECRUITINGSan Francisco, California, 94158, United States
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University of Kansas Hospital Authority
RECRUITINGKansas City, Kansas, 66160, United States
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University of Miami
RECRUITINGMiami, Florida, 33136, United States
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University of Michigan
RECRUITINGAnn Arbor, Michigan, 48109, United States
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University of North Carolina At Chapel Hill
RECRUITINGChapel Hill, North Carolina, 27514, United States
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University of Pennsylvania
RECRUITINGPhiladelphia, Pennsylvania, 19104, United States
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University of Wisconsin
RECRUITINGMadison, Wisconsin, 53705, United States
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Vanderbilt Medical Center
RECRUITINGNashville, Tennessee, 37232, United States
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Virginia Commonwealth University, North Hospital
RECRUITINGRichmond, Virginia, 23298, United States
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Washington University
RECRUITINGSt Louis, Missouri, 63110, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can adding linperlisib to standard chemotherapy improve outcomes in rare T-Cell lymphoma?
- Double-Drug attack on Hard-to-Treat lymphomas
- PET scans guide Nivolumab-Chemo combo in relapsed hodgkin lymphoma
- Patient's own t cells engineered to hunt lymphoma in early trial
- Off-the-Shelf Gene-Edited immune cells tested against Hard-to-Treat lymphoma