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TAC/MTX vs. TAC/MMF/PTCY for Prevention of Graft-versus-Host Disease and Microbiome and Immune Reconstitution Study (BMT CTN 1703/1801)

A Randomized, Multicenter, Phase III Trial of Tacrolimus/Methotrexate Versus Post-Transplant Cyclophosphamide/Tacrolimus/Mycophenolate Mofetil in Non-Myeloablative/Reduced Intensity Conditioning Allogeneic Peripheral Blood Stem Cell Transplantation (BMT CTN 1703; Progress III); Companion Study: Microbiome and Immune Reconstitution in Cellular Therapies and Hematopoietic Stem Cell Transplantation (BMT CTN 1801; Mi-Immune)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03959241
Acronym
1703/1801
Enrollment
431
Registered
2019-05-22
Start date
2019-06-25
Completion date
2022-09-19
Last updated
2024-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Leukemia, Chronic Myelogenous Leukemia (CML), Lymphoma, Myelodysplasia

Keywords

Acute Leukemia, Chronic Myelogenous Leukemia (CML), Myelodysplasia (MDS), Lymphoma, GVHD prophylaxis, Acute GVHD

Brief summary

1703: The study is designed as a randomized, phase III, multicenter trial comparing two acute graft-versus-host disease (aGVHD) prophylaxis regimens: tacrolimus/methotrexate (Tac/MTX) versus post-transplant cyclophosphamide/tacrolimus/mycophenolate mofetil (PTCy/Tac/MMF) in the setting of reduced intensity conditioning (RIC) allogeneic peripheral blood stem cell (PBSC) transplantation. 1801: The goal of this protocol is to test the primary hypothesis that the engraftment stool microbiome diversity predicts one-year non-relapse mortality in patients undergoing reduced intensity allogeneic HCT.

Detailed description

1703: Graft-versus-Host Disease (GVHD) is a complication that affects many hematopoietic stem cell transplant (HSCT) patients; it occurs when the new cells from a transplant attack the recipient's body. The current standard GVHD prophylaxis regimen for patients with hematologic malignancies undergoing HSCT involves a combination of immunosuppressive agents given for the first 6 months after transplant. The standard strategy of Tacrolimus/Methotrexate will be used as a control arm in comparison to one other treatment plan utilizing Tacrolimus/Mycophenolate Mofetil/Post-Transplant Cyclophosphamide. Study participants will receive an infusion of mobilized peripheral blood stem cell grafts on both arms. Study participants will be randomized to one of these two treatment arms. 1801: A relationship between the intestinal microbiota and graft-versus-host disease (GVHD) has long been appreciated but is still not well understood. Mice transplanted in germ-free conditions or treated with gut-decontaminating antibiotics developed less severe GVHD. Clinical studies initially suggested a benefit from near-total bacterial decontamination, but later showed no clear benefit and this approach was discontinued in the early 1990s. Partial gut decontamination continues to be practiced at many centers. More recently, the advent of next-generation sequencing (NGS) has resulted in cheaper and easier characterization of complex microbial mixtures. This has led to a renewed interest in evaluating the relationship between the microbiota and human health and disease, including recipients of hematopoietic cell transplantation (HCT). Similarly, NGS has also contributed to significant advancements in the investigator's understanding of immune reconstitution in HCT patients and how this may impact clinica outcomes. The goal of this protocol is to test the primary hypothesis that the engraftment stool microbiome diversity predicts one-year non-relapse mortality in patients undergoing reduced intensity allogeneic HCT.

Interventions

PROCEDUREMobilized Peripheral Blood Stem Cell graft with Tacrolimus/Methotrexate

Mobilized PBSC grafts will be administered on Day 0 to all patients according to individual institutional guidelines after appropriate processing and quantification has been performed by the local laboratory. Stem cells are administered through an indwelling central venous catheter. If infusion occurs over two days, Day 0 is the first day the infusion is initiated.

DRUGTacrolimus

Tacrolimus will be given per institutional practices, orally at a dose of 0.05-0.06 mg/kg/day or intravenously at a dose of 0.02-0.03 mg/kg/day starting on Day -3. The dose of tacrolimus may be rounded to the nearest 0.5 mg for oral formulations. Subsequent dosing will be based on blood levels per institutional guidelines with a suggested range of 5-15. If patients are on medications which alter the metabolism of tacrolimus (e.g.concurrent CYP3A4 inhibitors), the initial starting dose and subsequent doses should be altered as per institutional practices. Tacrolimus taper can be initiated at a minimum of 90 days post HCT if there is no evidence of active GVHD. The rate of tapering will be done according institutional practices and patients should be off tacrolimus by Day 180 post HCT if there is no evidence of active GVHD.

DRUGMethotrexate

Methotrexate will be administered at the doses of 15 mg/m2 IV bolus on Day +1, and 10 mg/m2 IV bolus on Days +3, +6 and +11 after hematopoietic stem cell infusion. Methotrexate should be dose reduced, given with leucovorin rescue, or held for complications such as severe mucositis per institutional guidelines.

PROCEDUREMobilized Peripheral Blood Stem Cell graft with Tacrolimus/Mycophenolate Mofetil/Post-Transplant Cyclophosphamide

Mobilized PBSC grafts will be administered on Day 0 to all patients according to individual institutional guidelines after appropriate processing and quantification has been performed by the local laboratory. Stem cells are administered through an indwelling central venous catheter. If infusion occurs over two days, Day 0 is the first day the infusion is initiated.

DRUGMycophenolate Mofetil

MMF will be given at a dose of 15 mg/kg/dose ter in die (TID) (based upon actual body weight) with the maximum total daily dose not to exceed 3 grams (1g TID, IV or PO). MMF prophylaxis will start Day +5 and discontinue after the last dose on Day +35, or may be continued if active GVHD is present.

DRUGCyclophosphamide

Cyclophosphamide \[50 mg/kg ideal body weight (IBW); if actual body weight (ABW) \< IBW, use ABW\] will be given on Day +3 (between 60 and 72 hours after the start of the PBSC infusion) and on Day +4 post-transplant (approximately 24 hours after Day +3 cyclophosphamide). Cyclophosphamide will be given as an IV infusion over 1-2 hours (depending on volume).

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Blood and Marrow Transplant Clinical Trials Network
CollaboratorNETWORK
National Cancer Institute (NCI)
CollaboratorNIH
National Marrow Donor Program
CollaboratorOTHER
Medical College of Wisconsin
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Patients will be randomized at a ratio of 1:1 between the treatment arms using permuted blocks of random sizes.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age 18.0 years or older at the time of enrollment on Segment A 2. Patients with acute leukemia or chronic myelogenous leukemia with no circulating blasts and with less than 5% blasts in the bone marrow 3. Patients with 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% vs. 5-10% blasts in this disease) 4. Patients with relapsed chronic lymphocytic leukemia/small lymphocytic lymphoma with chemosensitive disease at time of transplantation 5. Patients with lymphoma \[follicular lymphoma, Hodgkin lymphoma, diffuse large B cell lymphoma, mantle cell lymphoma, peripheral T-cell lymphoma, angioimmunoblastic T-cell lymphoma and anaplastic large cell lymphoma\] with chemosensitive disease at the time of transplantation 6. Planned reduced intensity conditioning regimen (see eligible regimens in Table 2.4a) 7. Patients must have a related or unrelated peripheral blood stem cell donor as follows: 1. Sibling donor must be a 6/6 match for Human Leukocyte Antigen-A (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. 2. 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 National Marrow Donor Program (NMDP) criteria for donation. 8. Cardiac function: Left ventricular ejection fraction at least 45% 9. Estimated creatinine clearance acceptable per institutional guidelines 10. Pulmonary function: Diffusing capacity of lung for carbon monoxide (DLCO) corrected for hemoglobin at least 40% and forced expiratory volume at one second (FEV1) predicted at least 50% 11. Liver function acceptable per institutional guidelines 12. Karnofsky Performance Score at least 60% 13. Female patients (unless postmenopausal for at least 1 year before the screening visit, or surgically sterilized), agree to practice two (2) 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 12 months post-transplant (see Section 2.6.4 for definition of postmenopausal) 14. Male patients (even if surgically sterilized), of partners of women of childbearing potential must agree to one of the following: practice effective barrier contraception (see Section 2.6.4 for list of barrier methods), or abstain from heterosexual intercourse from the time of signing the informed consent through 12 months post-transplant 15. Plans for the use of post-transplant maintenance therapy must be disclosed upon enrollment and must be used irrespective of the outcome of the randomization. Please note that THIS DOES NOT INCLUDE INVESTIGATIONAL AGENTS and maintenance therapy with investigational treatment requires approval by the study chairs. 16. 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 patient at any time without prejudice to future medical care.

Exclusion criteria

1. Prior allogeneic transplant 2. Active central nervous system (CNS) involvement by malignant cells 3. Patients with secondary acute myeloid leukemia arising from myeloproliferative disease, including chronic myelomonocytic leukemia (CMML) 4. Patients with uncontrolled bacterial, viral or fungal infections (currently taking medication and with progression or no clinical improvement) at time of enrollment. 5. Presence of clinically significant fluid collection (ascites, pleural or pericardial effusion) that interferes with methotrexate clearance or makes methotrexate use contraindicated 6. Patients seropositive for human immunodeficiency virus (HIV) with detectable viral load. HIV+ patients with an undetectable viral load on antiviral therapy are eligible. 7. Myocardial infarction within 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. 8. Female patients who are pregnant (as per institutional practice) or lactating 9. Patients with a serious medical or psychiatric illness likely to interfere with participation in this clinical study 10. Patients 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. 11. Planned use of antithymocyte globulin (ATG) or alemtuzumab in conditioning regimen

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With GVHD/Relapse or Progression-free Survival (GRFS) at One Year1 year post randomizationThe primary endpoint is GRFS as a time to event endpoint from randomization. All randomized patients will be followed for one year; however, the primary endpoint will be analyzed as a time to event endpoint. The primary analysis will be done using the randomized population. An event for this time to event outcome is defined as grade III-IV acute GVHD, chronic GVHD requiring systemic immune suppression, disease relapse or progression, or death by any cause, whichever comes first. Time to event analyses were conducted. An unadjusted Kaplan-Meier analysis was done. Additionally, a multivariate Cox regression model adjusting for the following pre-specified covariates: age group (\< 65 vs. 65+), disease risk index (low, intermediate, high/very high), planned RIC conditioning regimen (Fludarabine/Busulfan, Fludarabine/Melphalan, Other), donor type/HLA matching score (related 6/6, unrelated 7/8, unrelated 8/8), and planned use of post-transplant maintenance therapy (Yes vs. no).

Secondary

MeasureTime frameDescription
Participants With Maximum Acute GVHD at One Year Post-transplantOne year post-transplantAcute GVHD were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. Biology of Blood and Marrow Transplantation 2016; 22:4-10). The higher acute GVHD grade indicates worse outcomes. Grade 0 is no acute GVHD of any organ. Grade I acute GVHD is defined as Skin stage of 1-2 and stage 0 for both GI and liver organs. Grade II is stage 3 of skin, or stage 1 of GI, or stage 1 of liver. Grade III is stage 2-3 for GI, or stage 2-3 of liver. Grade IV is stage 4 of skin, or stage 4 of liver. Max acute GVHD by one-year post-transplant was computed.
Number of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant1 year post-transplantParticipants who are alive, relapse-free, and do not need ongoing immune suppression (IS) to control GVHD at one year post-transplant are considered successes for the endpoint immunosuppression-free survival (ISFS). Immune suppression is defined as any systemic agents used to control or suppress GVHD. Corticosteroid doses greater than 10 mg were considered active systemic immune suppression treatment. Participants who discontinued immune suppression within 15 days or less prior to the 1-year time point was considered to be on immune suppression for this endpoint.
Participants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantDay 100 post-transplantOrgan stages were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. 2016). Higher stage in any organ indicates worse outcomes. For skin, stage 0-no GVHD rash; 1-Maculopapular Rash \<25% BSA; 2-Maculopapular Rash 25-50% BSA; 3-Maculopapular Rash \>50% BSA; 4-Generalized Erythroderma Plus Bullous Formation and Desquamation \>5% BSA. For Lower GI, 0-No Diarrhea or Diarrhea-Adult: \<500 mL/day, \<3 Episodes/day; Child: \<10 mL/kg/day, \<4 Episodes/day; 1-Diarrhea-Adult: 500-999 mL/day, 3-4 Episodes/day; Child: 10-19.9 mL/kg/day, 4-6 Episodes/day; 2-Diarrhea-Adult: 1000-1500 mL/day, 5-7 Episodes/day; Child: 20-30 mL/kg/day, 7-10 Episodes/day; 3-Diarrhea-Adult: \>1500 mL/day, \>7 Episodes/day; Child: \>30 mL/kg/day, \>10 Episodes/day; 4-Severe Abdominal Pain With or Without Ileus or Grossly Bloody Stool. For liver, 0-Bilirubin \<2.0 mg/dL; 1-Bilirubin 2.0-3.0 mg/dL; 2-Bilirubin 3.1-6.0 mg/dL; 3-Bilirubin 6.1-15.0 mg/dL; 4-Bilirubin \>15.0 mg/dL
Participants With Maximum Stage of Upper GI at Day 100 Post-transplantDay 100 post-transplantOrgan stages were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. 2016). Higher stage in any organ indicates worse outcomes. For upper GI, stage 0 is no or intermittent nausea, vomiting, or anorexia; stage 1 is persistent nausea, vomiting, or anorexia. The maximum stages of Upper GI at patient level were summarized at Day 100.
Percentage of Participants With Chronic GVHD Post-transplant6, 12 months post-transplantPercentage of participants with chronic GVHD (cGVHD) at one-year will be estimated with 95% confidence intervals for each treatment group using the cumulative incidence estimate with the complementary log-log transformation, treating death prior to cGVHD as a competing event. Chronic GVHD is based on NIH Consensus Criteria (2014 NIH Consensus Criteria) and includes mild, moderate and severe chronic GVHD. Eight organs were scored on a 0-3 scale to reflect degree of cGVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of cGVHD were also recorded. Assessment of cGVHD occurred up to one-year post-transplant. This endpoint considers any cGVHD onset. A multivariate Cox regression model for the cause-specific hazard of cGVHD was used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.
Number of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplant12 months post-transplantChronic GVHD data were collected directly from providers and chart review as defined by the NIH Consensus Conference Criteria. Eight organs were scored on a 0-3 scale to reflect degree of chronic GVHD involvement per the NIH global severity scores of mild, moderate and severe chronic GVHD. The maximum severity of chronic GVHD through 12 months post-transplant will be tabulated by treatment arm.
Percentage of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant1 year post-transplantParticipants who are alive, relapse-free, and do not need ongoing immune suppression to control GVHD at one year post-transplant are considered successes for the endpoint immunosuppression-free survival (ISFS). Percentage of participants alive, relapse free, and off immune suppression at 1 year post-transplant were described for each treatment group, along with 95% Clopper-Pearson confidence intervals.
Percentage of Participants With Neutrophil Recovery Post-transplantDays 28 and day 100 post-transplantNeutrophil recovery is defined as achieving an absolute neutrophil count (ANC) greater than or equal to 500/mm\^3 for three consecutive measurements on three different days. The first of the three days will be designated the day of neutrophil recovery. The competing event is death without neutrophil recovery. For participants who never drop ANC below 500/mm\^3, the date of neutrophil recovery will be Day +1 post-transplant. The cumulative incidence of neutrophil recovery by Day 28 and Day 100 was described for each treatment group with point estimates and 95% confidence intervals using the complementary log-log transformation and treating death as a competing event.
Percentage of Participants With Platelet Recovery Post-transplantDay 60 and Day 100 post-transplantPlatelet recovery is defined by two different metrics: the first day of a sustained platelet count greater than or equal to 20,000/mm\^3 or greater than or equal to 50,000/mm\^3 with no platelet transfusions in the preceding seven days. The first day of sustained platelet count above these thresholds will be designated the day of platelet engraftment. For participants who never drop their platelet count below 20,000/mm\^3 or 50,000/mm\^3, the date of platelet recovery will be Day +1 post HCT. The competing event is death without platelet recovery. The cumulative incidence estimate of platelet recovery by Day 60 and Day 100 were described by treatment group with 95% confidence intervals (complementary log-log transformation), treating death as a competing event.
Percentage of Participants With Lymphocyte Recovery Post-transplantDay 60, Day 100, 6 Months, and 1 year post-transplantLymphocyte recovery is defined as the first day of sustained absolute lymphocyte count greater than or equal to 1000/mm\^3. The competing event is death without lymphocyte recovery. The cumulative incidence estimate of Lymphocyte recovery were described by treatment group with 95% confidence intervals (complementary log-log transformation), treating death as a competing event.
Number of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 and Day 100 post-transplantDonor cell engraftment were assessed with donor/recipient chimerism studies. Mixed chimerism is defined as the presence of donor cells, as a proportion of total cells to be less than 95% but at least 5% in the bone marrow or peripheral blood. Full donor chimerism is defined as greater than or equal to 95% of donor cells. Mixed and full chimerism will be evidence of donor cell engraftment. Donor cells of less than 5% will be considered as graft rejection. The number of participants with each level of chimerism described above is described as part of this outcome.
Percentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantDays 100 post-transplantAcute GVHD was graded according to Mount Sinai aGVHD International Consortium (MAGIC) Criteria (Harris et al. 2016) with higher grade indicating worse outcomes. Grade I aGVHD is defined as Skin stage 1-2 and stage 0 for both GI and liver. Grade II is stage 3 skin, stage 1 GI, or stage 1 liver. Grade III is stage 2-3 GI or stage 2-3 liver. Grade IV is stage 4 skin or stage 4 liver. The cumulative incidence of acute GVHD grade II-IV and III-IV at Day 100 was estimated using the Aalen-Johansen estimator with 95% confidence intervals, treating death prior to aGVHD as a competing event. The cumulative incidences of Minnesota standard and high risk aGVHD at Day 100 were determined with 95% confidence intervals. Time to aGVHD is defined as time from transplant until onset of grades II-IV and III-IV aGVHD, respectively. A multivariate Cox regression model was used to compare the treatment groups, with adjustment for same baseline characteristics as for the primary endpoint.
Percentage of Participants With Disease Relapse at 1 Year Post-transplant1 year post-transplantDisease relapse/progression is defined as being alive and free of relapse/progression of the primary disease. The time from transplant until relapse/progression of the primary disease, or cumulative incidence, was estimated at one-year post-transplant along with 95% CIs computed using the complementary log-log transformation, treating death prior to disease relapse as a competing event. A multivariate Cox regression model for the cause-specific hazard of relapse or progression will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.
Percentage of Participants With Treatment-related Mortality (TRM) Post-transplantDays 100, 180 and 1 year post-transplantAn event for this endpoint TRM is death without evidence of disease progression or recurrence. Disease progression or recurrence will be considered a competing event. The time from transplant until TRM, or cumulative incidence, estimated at specific time points along with 95% CIs computed using the complementary log-log transformation, treating relapse/progression of the primary disease as a competing risk. A multivariate Cox regression model for the cause-specific hazard of TRM was used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.
Number of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplant1 year post-transplantAll Grade 3-5 toxicities will be tabulated by grade for each randomized treatment arm, by type of toxicity as well as the peak grade overall. Toxicities were evaluated using the NCI Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0.
Frequencies of Infections Categorized by Infection Type1 year post-transplantAll Grade 2 and 3 infections were reported according to the BMT CTN Technical Manual of Procedures (MOP) up to 1 year post-transplant. The frequency of Grade 2-3 infections and the number of participants experiencing infections occurring within 1 year post-transplant, are tabulated by treatment arm, organism, time period of infection onset, and severity, with Grade defined per the BMT CTN Technical MOP.
Number of Participants With Grade 2 and 3 Infections1 year post-transplantAll Grade 2 and 3 infections were reported according to the BMT CTN Technical Manual of Procedures (MOP) up to 1 year post-transplant. The frequency of Grade 2-3 infections and the number of participants experiencing infections occurring within 1 year post-transplant, are tabulated by treatment arm, organism, time period of infection onset, and severity, with Grade defined per the BMT CTN Technical MOP.
Percentage of Participants With Grade 2 and 3 Infections6 months and 1 year post-transplantGrade 2 and 3 infections, as defined by the BMT CTN Technical Manual of Procedures (MOP), are reported on the study. The cumulative incidence of infections post transplantation, treating death as a competing risk, were compared between the treatment groups using the Gray's test.
Percentage of Participants With CMV at Day 100 Post-transplantDay 100 post-transplantThe cumulative incidence of initiation of systemic treatment for CMV was compared between the treatment groups using the Gray's test, with death treated as a competing risk. Estimates of the cumulative incidence of CMV reactivation are provided at Day 100 post-transplant.
Percentage of Participants With Disease-Free Survival (DFS) at 1 Year Post-transplant1 year post-transplantDFS is defined as being alive and free of relapse/progression of the primary disease. The time from transplant until death or relapse/progression (DFS failure) was described for each treatment arm using the Kaplan-Meier estimator, with numbers of subjects at risk at specific time points presented for each treatment group. A multivariate Cox regression model for the hazard of death will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.
Percentage of Participants With Overall Survival (OS) at 1 Year Post-transplant1 year post-transplantThe event for this endpoint OS is death from any cause post-transplant. Time to overall survival is defined as the time interval between date of transplant and date of death from any cause. Surviving participants will be censored at last follow-up or 1 year post-transplant, whichever comes first. The time from transplant until death from any cause was described graphically for each treatment arm using the Kaplan-Meier estimator, with numbers of subjects at risk at specific time points presented for each treatment group. A multivariate Cox regression model for the hazard of death will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.
Percentage of Participants With Lymphoproliferative Disease (PTLD) at 1 Year Post-Transplant1 year Post-TransplantThe cumulative incidence of lymphoproliferative disease at 1-year post-transplant is described with 95% confidence intervals for each treatment group using the Aalen-Johansen estimator, treating death as a competing event.
Summary Statistics for Donor ChimerismDay 28 and Day 100 post-transplantDonor cell engraftment were assessed with donor/recipient chimerism studies. Mixed chimerism is defined as the presence of donor cells, as a percentage of total cells to be less than 95% but at least 5% in the bone marrow or peripheral blood. Full donor chimerism is defined as greater than or equal to 95% of donor cells. Mixed and full chimerism will be evidence of donor cell engraftment. Donor cells of less than 5% will be considered as graft rejection. Donor chimerism at Day 28 and Day 100 after transplant in each of the randomized treatment arms will be described numerically as median and range for those evaluable.

Countries

United States

Participant flow

Recruitment details

BMT CTN 1703's enrollment was between June 2019 and June 2021 with 431 participants enrolled from 37 centers. The study opened to accrual on June 25, 2019 with 39 centers activated for enrollment. The study closed to accrual on June 18, 2021 and study completed on September 19, 2022. BMT CTN 1801 is a companion study to BMT CTN 1703. The accrual goal was 300 participants. Enrollment to BMT CTN 1801 is performed solely through co-enrollment of BMT CTN 1703 participants.

Pre-assignment details

Enrolled participants were randomized in a 1:1 ratio to the two treatment arms. This is an open-label study and not blinded in treatment assignment. The randomized participants were intended to undergo transplant. For various reasons, a small portion of participants did not receive a transplant.

Participants by arm

ArmCount
PTCY/Tacrolimus/MMF
Mobilized Peripheral Blood Stem Cell graft with Tacrolimus/Mycophenolate Mofetil/Post-Transplant Cyclophosphamide: Mobilized PBSC grafts will be administered on Day 0 to all patients. Stem cells are administered through an indwelling central venous catheter. Tacrolimus: Tacrolimus will be given per institutional practices, orally at a dose of 0.05-0.06 mg/kg/day or intravenously at a dose of 0.02-0.03 mg/kg/day starting Day +5. Serum levels of tacrolimus will be measured at Day +7 and then should be checked weekly thereafter, the dose adjusted accordingly to maintain a suggested level of 5-15 ng/mL. Tacrolimus taper can be initiated at 90 days post HCT if there is no evidence of active GVHD. The tapering rate will be based on institutional practices, patients should be off tacrolimus by Day 180 post HCT if there is no evidence of active GVHD. Mycophenolate Mofetil: MMF will be given at a dose of 15 mg/kg/dose ter in die (TID) with the maximum total daily dose not to exceed 3 grams (1g TID, IV or PO). MMF prophylaxis will start Day +5 and discontinue after the last dose on Day +35, or may be continued if active GVHD is present. Cyclophosphamide: Cyclophosphamide \[50 mg/kg ideal body weight (IBW); if actual body weight (ABW) \< IBW, use ABW\] will be given on Day +3 (between 60 and 72 hours after the start of the PBSC infusion) and on Day +4 post-transplant (approximately 24 hours after Day +3 cyclophosphamide). Cyclophosphamide will be given as an IV infusion over 1-2 hours.
214
Tacrolimus/Methotrexate
Mobilized Peripheral Blood Stem Cell graft with Tacrolimus/Methotrexate: Mobilized PBSC grafts will be administered on Day 0 to all patients according to individual institutional guidelines after appropriate processing and quantification has been performed by the local laboratory. Stem cells are administered through an indwelling central venous catheter. If infusion occurs over two days, Day 0 is the first day the infusion is initiated. Tacrolimus: Tacrolimus will be given per institutional practices, orally at a dose of 0.05-0.06 mg/kg/day or intravenously at a dose of 0.02-0.03 mg/kg/day starting on Day -3. Subsequent dosing will be based on blood levels per institutional guidelines with a suggested range of 5-15. If patients are on medications which alter the metabolism of tacrolimus, the initial starting dose and subsequent doses should be altered as per institutional practices. Tacrolimus taper can be initiated at a minimum of 90 days post HCT if there is no evidence of active GVHD. The rate of tapering will be done according institutional practices and patients should be off tacrolimus by Day 180 post HCT if there is no evidence of active GVHD. Methotrexate: Methotrexate will be administered at the doses of 15 mg/m2 IV bolus on Day +1, and 10 mg/m2 IV bolus on Days +3, +6 and +11 after hematopoietic stem cell infusion. Methotrexate should be dose reduced, given with leucovorin rescue, or held for complications such as severe mucositis per institutional guidelines.
217
Total431

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDisease Relapse01
Overall StudyLost to Follow-up10
Overall StudyMove to Hospice Care10
Overall StudyOff Study10
Overall StudyScreen Failure10
Overall StudyWithdrawal by Subject78

Baseline characteristics

CharacteristicPTCY/Tacrolimus/MMFTotalTacrolimus/Methotrexate
Age, Continuous64.2 years
STANDARD_DEVIATION 8.5
64.3 years
STANDARD_DEVIATION 8.7
64.5 years
STANDARD_DEVIATION 8.9
Age, Customized
18-64 years
94 Participants186 Participants92 Participants
Age, Customized
65 years or older
120 Participants245 Participants125 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
0
49 Participants102 Participants53 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
1
31 Participants65 Participants34 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
2
60 Participants94 Participants34 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
3
24 Participants57 Participants33 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
4+
40 Participants95 Participants55 Participants
Allogeneic Hematopoietic Cell Transplantation-Comorbidity Index (HCT-CI) total score
Missing/Unknown
10 Participants18 Participants8 Participants
Disease Risk Index
High / Very High
70 Participants141 Participants71 Participants
Disease Risk Index
Intermediate
125 Participants250 Participants125 Participants
Disease Risk Index
Low
19 Participants40 Participants21 Participants
Donor/Recipient ABO Match
Bidirectional Mismatch
66 Participants149 Participants83 Participants
Donor/Recipient ABO Match
Major Mismatch
2 Participants3 Participants1 Participants
Donor/Recipient ABO Match
Match
122 Participants233 Participants111 Participants
Donor/Recipient ABO Match
Minor Mismatch
6 Participants7 Participants1 Participants
Donor/Recipient ABO Match
Missing/Unknown
18 Participants39 Participants21 Participants
Donor/Recipient CMV Status
Missing/Unknown
7 Participants11 Participants4 Participants
Donor/Recipient CMV Status
Neg/Neg
59 Participants129 Participants70 Participants
Donor/Recipient CMV Status
Neg/Pos
67 Participants107 Participants40 Participants
Donor/Recipient CMV Status
Pos/Neg
20 Participants52 Participants32 Participants
Donor/Recipient CMV Status
Pos/Pos
61 Participants132 Participants71 Participants
Donor/Recipient Sex Match
F-F
36 Participants71 Participants35 Participants
Donor/Recipient Sex Match
F-M
47 Participants96 Participants49 Participants
Donor/Recipient Sex Match
M-F
41 Participants95 Participants54 Participants
Donor/Recipient Sex Match
Missing/Unknown
5 Participants9 Participants4 Participants
Donor/Recipient Sex Match
M-M
85 Participants160 Participants75 Participants
Donor Type and HLA Matching
Related donor 6/6
60 Participants128 Participants68 Participants
Donor Type and HLA Matching
Unrelated donor 7/8
7 Participants15 Participants8 Participants
Donor Type and HLA Matching
Unrelated donor 8/8
147 Participants288 Participants141 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants31 Participants22 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
203 Participants394 Participants191 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants6 Participants4 Participants
Karnofsky / Lansky Performance Score
At least 90
106 Participants214 Participants108 Participants
Karnofsky / Lansky Performance Score
Less Than 90
108 Participants217 Participants109 Participants
Planned Post-Transplant Maintenance Therapy
Clinical Trial
1 Participants2 Participants1 Participants
Planned Post-Transplant Maintenance Therapy
FLT3 Inhibitor
10 Participants19 Participants9 Participants
Planned Post-Transplant Maintenance Therapy
Monoclonal Antibody
1 Participants1 Participants0 Participants
Planned Post-Transplant Maintenance Therapy
No Planned Post-Transplant Maintenance Therapy
159 Participants329 Participants170 Participants
Planned Post-Transplant Maintenance Therapy
Other
31 Participants53 Participants22 Participants
Planned Post-Transplant Maintenance Therapy
Tyrosine Kinase Inhibitor
12 Participants27 Participants15 Participants
Planned Reduced Intensity Conditioning Regimen
Fludarabine/Busulfan
58 Participants119 Participants61 Participants
Planned Reduced Intensity Conditioning Regimen
Fludarabine/Cyclophosphamide
6 Participants7 Participants1 Participants
Planned Reduced Intensity Conditioning Regimen
Fludarabine/Cyclophosphamide/TBI
24 Participants48 Participants24 Participants
Planned Reduced Intensity Conditioning Regimen
Fludarabine/Melphalan
125 Participants252 Participants127 Participants
Planned Reduced Intensity Conditioning Regimen
Fludarabine/TBI
1 Participants5 Participants4 Participants
Primary Disease
Acute lymphoblastic leukemia (ALL)
12 Participants39 Participants27 Participants
Primary Disease
Acute myelogenous leukemia (AML)
107 Participants207 Participants100 Participants
Primary Disease
Aggressive NHL
9 Participants16 Participants7 Participants
Primary Disease
Biphenotypic leukemia
1 Participants2 Participants1 Participants
Primary Disease
Burkitt lymphoma
1 Participants1 Participants0 Participants
Primary Disease
Chronic myelogenous leukemia (CML)
6 Participants11 Participants5 Participants
Primary Disease
Hodgkin lymphoma
3 Participants6 Participants3 Participants
Primary Disease
Indolent NHL
3 Participants4 Participants1 Participants
Primary Disease
Mantle cell lymphoma
0 Participants1 Participants1 Participants
Primary Disease
Myelodysplastic syndrome (MDS)
63 Participants128 Participants65 Participants
Primary Disease
T-cell NHL
7 Participants12 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
10 Participants14 Participants4 Participants
Race (NIH/OMB)
Black or African American
8 Participants13 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
10 Participants23 Participants13 Participants
Race (NIH/OMB)
White
186 Participants379 Participants193 Participants
Received reduced intensity conditioning regimen
Fludarabine/Busulfan
56 Participants117 Participants61 Participants
Received reduced intensity conditioning regimen
Fludarabine/Cyclophosphamide
5 Participants6 Participants1 Participants
Received reduced intensity conditioning regimen
Fludarabine/Cyclophosphamide/TBI
24 Participants48 Participants24 Participants
Received reduced intensity conditioning regimen
Fludarabine/Melphalan
122 Participants245 Participants123 Participants
Received reduced intensity conditioning regimen
Fludarabine/TBI
1 Participants5 Participants4 Participants
Received reduced intensity conditioning regimen
Missing/Unknown
6 Participants10 Participants4 Participants
Sex: Female, Male
Female
80 Participants171 Participants91 Participants
Sex: Female, Male
Male
134 Participants260 Participants126 Participants
Time from Disease Diagnosis to Transplant12.3 months
STANDARD_DEVIATION 17
12.7 months
STANDARD_DEVIATION 19.4
13.1 months
STANDARD_DEVIATION 21.5

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
58 / 21470 / 217
other
Total, other adverse events
142 / 208149 / 212
serious
Total, serious adverse events
7 / 20814 / 212

Outcome results

Primary

Percentage of Participants With GVHD/Relapse or Progression-free Survival (GRFS) at One Year

The primary endpoint is GRFS as a time to event endpoint from randomization. All randomized patients will be followed for one year; however, the primary endpoint will be analyzed as a time to event endpoint. The primary analysis will be done using the randomized population. An event for this time to event outcome is defined as grade III-IV acute GVHD, chronic GVHD requiring systemic immune suppression, disease relapse or progression, or death by any cause, whichever comes first. Time to event analyses were conducted. An unadjusted Kaplan-Meier analysis was done. Additionally, a multivariate Cox regression model adjusting for the following pre-specified covariates: age group (\< 65 vs. 65+), disease risk index (low, intermediate, high/very high), planned RIC conditioning regimen (Fludarabine/Busulfan, Fludarabine/Melphalan, Other), donor type/HLA matching score (related 6/6, unrelated 7/8, unrelated 8/8), and planned use of post-transplant maintenance therapy (Yes vs. no).

Time frame: 1 year post randomization

Population: Analysis Population includes all randomized participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With GVHD/Relapse or Progression-free Survival (GRFS) at One Year52.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With GVHD/Relapse or Progression-free Survival (GRFS) at One Year35.5 percentage of participants
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of GRFS hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapies.p-value: 0.00195% CI: [0.492, 0.835]Regression, Cox
Secondary

Frequencies of Infections Categorized by Infection Type

All Grade 2 and 3 infections were reported according to the BMT CTN Technical Manual of Procedures (MOP) up to 1 year post-transplant. The frequency of Grade 2-3 infections and the number of participants experiencing infections occurring within 1 year post-transplant, are tabulated by treatment arm, organism, time period of infection onset, and severity, with Grade defined per the BMT CTN Technical MOP.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFFrequencies of Infections Categorized by Infection TypeViral70 infections
PTCY/Tacrolimus/MMFFrequencies of Infections Categorized by Infection TypeProtozoal/Parasite0 infections
PTCY/Tacrolimus/MMFFrequencies of Infections Categorized by Infection TypeFungal18 infections
PTCY/Tacrolimus/MMFFrequencies of Infections Categorized by Infection TypeOther34 infections
PTCY/Tacrolimus/MMFFrequencies of Infections Categorized by Infection TypeBacterial128 infections
Tacrolimus/MethotrexateFrequencies of Infections Categorized by Infection TypeOther46 infections
Tacrolimus/MethotrexateFrequencies of Infections Categorized by Infection TypeBacterial118 infections
Tacrolimus/MethotrexateFrequencies of Infections Categorized by Infection TypeViral61 infections
Tacrolimus/MethotrexateFrequencies of Infections Categorized by Infection TypeFungal14 infections
Tacrolimus/MethotrexateFrequencies of Infections Categorized by Infection TypeProtozoal/Parasite0 infections
Secondary

Number of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplant

Chronic GVHD data were collected directly from providers and chart review as defined by the NIH Consensus Conference Criteria. Eight organs were scored on a 0-3 scale to reflect degree of chronic GVHD involvement per the NIH global severity scores of mild, moderate and severe chronic GVHD. The maximum severity of chronic GVHD through 12 months post-transplant will be tabulated by treatment arm.

Time frame: 12 months post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantMild29 Participants
PTCY/Tacrolimus/MMFNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantSevere3 Participants
PTCY/Tacrolimus/MMFNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantModerate11 Participants
PTCY/Tacrolimus/MMFNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantUnknown1 Participants
PTCY/Tacrolimus/MMFNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantNone164 Participants
Tacrolimus/MethotrexateNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantUnknown2 Participants
Tacrolimus/MethotrexateNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantNone139 Participants
Tacrolimus/MethotrexateNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantMild36 Participants
Tacrolimus/MethotrexateNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantModerate24 Participants
Tacrolimus/MethotrexateNumber of Participants Experiencing Chronic GVHD With Maximum Severity at 12 Months Post-transplantSevere11 Participants
Secondary

Number of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplant

All Grade 3-5 toxicities will be tabulated by grade for each randomized treatment arm, by type of toxicity as well as the peak grade overall. Toxicities were evaluated using the NCI Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 General Disorders51 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Immune System Disorders5 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 GI Disorders57 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Renal Disorders33 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Hemorrhagic Disorders12 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Cardiac Disorders71 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Nervous System Disorders12 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Blood and Lymphatic Disorders3 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Vascular Disorders6 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Musculoskeletal and Connective Tissue Disorders17 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Respiratory, Thoracic and Mediastinal Disorders41 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Metabolism and Nutrition Disorders24 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Hepatic Disorders24 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantReceived Dialysis11 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantHepatitis6 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantLiver failure2 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantAbnormal liver function14 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 3141 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 423 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 512 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 3113 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 417 Participants
PTCY/Tacrolimus/MMFNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 512 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Metabolism and Nutrition Disorders33 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 General Disorders48 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 3146 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Immune System Disorders6 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Hepatic Disorders44 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 GI Disorders77 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 3116 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Renal Disorders30 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantReceived Dialysis8 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Hemorrhagic Disorders11 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 427 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Cardiac Disorders72 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantHepatitis4 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Nervous System Disorders20 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 511 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Blood and Lymphatic Disorders3 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantLiver failure4 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Vascular Disorders12 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantOverall Grade 511 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Musculoskeletal and Connective Tissue Disorders12 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantAbnormal liver function15 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantGrades 3-5 Respiratory, Thoracic and Mediastinal Disorders42 Participants
Tacrolimus/MethotrexateNumber of Participants Reporting Grade 3-5 Toxicities by 1 Year Post-transplantMaximum Toxicity Grade 422 Participants
Secondary

Number of Participants With Each Level of Donor Cell Engraftment Post-transplant

Donor cell engraftment were assessed with donor/recipient chimerism studies. Mixed chimerism is defined as the presence of donor cells, as a proportion of total cells to be less than 95% but at least 5% in the bone marrow or peripheral blood. Full donor chimerism is defined as greater than or equal to 95% of donor cells. Mixed and full chimerism will be evidence of donor cell engraftment. Donor cells of less than 5% will be considered as graft rejection. The number of participants with each level of chimerism described above is described as part of this outcome.

Time frame: Day 28 and Day 100 post-transplant

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantFull (>95% Donor Cells)126 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantMixed (5-95% Donor Cells)39 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantGraft Rejection (<5% Donor Cells)4 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantData missing39 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantFull (>95% Donor Cells)116 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantMixed (5-95% Donor Cells)48 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantGraft Rejection (<5% Donor Cells)5 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantData missing39 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantData missing29 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantFull (>95% Donor Cells)129 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantFull (>95% Donor Cells)124 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantMixed (5-95% Donor Cells)45 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantGraft Rejection (<5% Donor Cells)1 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantGraft Rejection (<5% Donor Cells)4 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 100 post-transplantMixed (5-95% Donor Cells)58 Participants
Tacrolimus/MethotrexateNumber of Participants With Each Level of Donor Cell Engraftment Post-transplantDay 28 post-transplantData missing34 Participants
Comparison: The null hypothesis is that there is no difference of Donor Cell Engraftment at Day 28 after transplantation between the treatment groupsp-value: 0.919Fisher Exact
Comparison: The null hypothesis is that there is no difference of Donor Cell Engraftment at Day 100 after transplantation between the treatment groupsp-value: 0.198Fisher Exact
Secondary

Number of Participants With Grade 2 and 3 Infections

All Grade 2 and 3 infections were reported according to the BMT CTN Technical Manual of Procedures (MOP) up to 1 year post-transplant. The frequency of Grade 2-3 infections and the number of participants experiencing infections occurring within 1 year post-transplant, are tabulated by treatment arm, organism, time period of infection onset, and severity, with Grade defined per the BMT CTN Technical MOP.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with 2 Infections32 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of None99 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with 4 Infections8 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 121 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with 1 Infection46 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 257 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with 5 Infections4 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 325 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with 3 Infections14 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsCMV Reactivation by Day 10015 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with >= 6 Infections5 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsNon-Microbial Infections9 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Grade 2 and 3 InfectionsPatients with Infections109 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsNon-Microbial Infections10 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with Infections100 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with 1 Infection46 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with 2 Infections24 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with 3 Infections10 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with 4 Infections7 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with 5 Infections5 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsPatients with >= 6 Infections8 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of None112 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 119 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 236 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsMaximum Severity of Grade 328 Participants
Tacrolimus/MethotrexateNumber of Participants With Grade 2 and 3 InfectionsCMV Reactivation by Day 10016 Participants
Secondary

Number of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant

Participants who are alive, relapse-free, and do not need ongoing immune suppression (IS) to control GVHD at one year post-transplant are considered successes for the endpoint immunosuppression-free survival (ISFS). Immune suppression is defined as any systemic agents used to control or suppress GVHD. Corticosteroid doses greater than 10 mg were considered active systemic immune suppression treatment. Participants who discontinued immune suppression within 15 days or less prior to the 1-year time point was considered to be on immune suppression for this endpoint.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted and evaluable participants for ISFS

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantImmunosuppression-Free Survival99 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantDeath46 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantAlive & Relapse21 Participants
PTCY/Tacrolimus/MMFNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantAlive, no relapse, and still on IS32 Participants
Tacrolimus/MethotrexateNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantAlive, no relapse, and still on IS45 Participants
Tacrolimus/MethotrexateNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantImmunosuppression-Free Survival81 Participants
Tacrolimus/MethotrexateNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantAlive & Relapse22 Participants
Tacrolimus/MethotrexateNumber of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplantDeath56 Participants
Secondary

Participants With Maximum Acute GVHD at One Year Post-transplant

Acute GVHD were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. Biology of Blood and Marrow Transplantation 2016; 22:4-10). The higher acute GVHD grade indicates worse outcomes. Grade 0 is no acute GVHD of any organ. Grade I acute GVHD is defined as Skin stage of 1-2 and stage 0 for both GI and liver organs. Grade II is stage 3 of skin, or stage 1 of GI, or stage 1 of liver. Grade III is stage 2-3 for GI, or stage 2-3 of liver. Grade IV is stage 4 of skin, or stage 4 of liver. Max acute GVHD by one-year post-transplant was computed.

Time frame: One year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFParticipants With Maximum Acute GVHD at One Year Post-transplantGrade I27 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Acute GVHD at One Year Post-transplantGrade III11 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Acute GVHD at One Year Post-transplantGrade II99 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Acute GVHD at One Year Post-transplantGrade IV5 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Acute GVHD at One Year Post-transplantGrade 066 Participants
Tacrolimus/MethotrexateParticipants With Maximum Acute GVHD at One Year Post-transplantGrade IV14 Participants
Tacrolimus/MethotrexateParticipants With Maximum Acute GVHD at One Year Post-transplantGrade 060 Participants
Tacrolimus/MethotrexateParticipants With Maximum Acute GVHD at One Year Post-transplantGrade I32 Participants
Tacrolimus/MethotrexateParticipants With Maximum Acute GVHD at One Year Post-transplantGrade II81 Participants
Tacrolimus/MethotrexateParticipants With Maximum Acute GVHD at One Year Post-transplantGrade III25 Participants
Secondary

Participants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplant

Organ stages were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. 2016). Higher stage in any organ indicates worse outcomes. For skin, stage 0-no GVHD rash; 1-Maculopapular Rash \<25% BSA; 2-Maculopapular Rash 25-50% BSA; 3-Maculopapular Rash \>50% BSA; 4-Generalized Erythroderma Plus Bullous Formation and Desquamation \>5% BSA. For Lower GI, 0-No Diarrhea or Diarrhea-Adult: \<500 mL/day, \<3 Episodes/day; Child: \<10 mL/kg/day, \<4 Episodes/day; 1-Diarrhea-Adult: 500-999 mL/day, 3-4 Episodes/day; Child: 10-19.9 mL/kg/day, 4-6 Episodes/day; 2-Diarrhea-Adult: 1000-1500 mL/day, 5-7 Episodes/day; Child: 20-30 mL/kg/day, 7-10 Episodes/day; 3-Diarrhea-Adult: \>1500 mL/day, \>7 Episodes/day; Child: \>30 mL/kg/day, \>10 Episodes/day; 4-Severe Abdominal Pain With or Without Ileus or Grossly Bloody Stool. For liver, 0-Bilirubin \<2.0 mg/dL; 1-Bilirubin 2.0-3.0 mg/dL; 2-Bilirubin 3.1-6.0 mg/dL; 3-Bilirubin 6.1-15.0 mg/dL; 4-Bilirubin \>15.0 mg/dL

Time frame: Day 100 post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin43 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI310 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin154 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI41 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI0155 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver0198 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin314 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver19 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI133 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver20 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin216 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver31 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI29 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver40 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin0121 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver40 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin0125 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin140 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin218 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin321 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantSkin48 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI0159 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI127 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI211 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI311 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLower GI44 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver0192 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver17 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver28 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Skin, Lower GI, and Liver at Day 100 Post-transplantLiver35 Participants
Secondary

Participants With Maximum Stage of Upper GI at Day 100 Post-transplant

Organ stages were graded according to Mount Sinai Acute GVHD International Consortium (MAGIC) Criteria (Harris et al. 2016). Higher stage in any organ indicates worse outcomes. For upper GI, stage 0 is no or intermittent nausea, vomiting, or anorexia; stage 1 is persistent nausea, vomiting, or anorexia. The maximum stages of Upper GI at patient level were summarized at Day 100.

Time frame: Day 100 post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Upper GI at Day 100 Post-transplant0136 Participants
PTCY/Tacrolimus/MMFParticipants With Maximum Stage of Upper GI at Day 100 Post-transplant172 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Upper GI at Day 100 Post-transplant0137 Participants
Tacrolimus/MethotrexateParticipants With Maximum Stage of Upper GI at Day 100 Post-transplant175 Participants
Secondary

Percentage of Participants With Chronic GVHD Post-transplant

Percentage of participants with chronic GVHD (cGVHD) at one-year will be estimated with 95% confidence intervals for each treatment group using the cumulative incidence estimate with the complementary log-log transformation, treating death prior to cGVHD as a competing event. Chronic GVHD is based on NIH Consensus Criteria (2014 NIH Consensus Criteria) and includes mild, moderate and severe chronic GVHD. Eight organs were scored on a 0-3 scale to reflect degree of cGVHD involvement. Liver and pulmonary function test results and use of systemic therapy for treatment of cGVHD were also recorded. Assessment of cGVHD occurred up to one-year post-transplant. This endpoint considers any cGVHD onset. A multivariate Cox regression model for the cause-specific hazard of cGVHD was used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.

Time frame: 6, 12 months post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Chronic GVHD Post-transplant6 months post transplant11.3 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Chronic GVHD Post-transplant12 months post transplant21.9 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Chronic GVHD Post-transplant6 months post transplant13.9 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Chronic GVHD Post-transplant12 months post transplant35.1 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of chronic GVHD post-transplantation between the treatment groupsp-value: 0.005Gray's test for cumulative Incidence
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of the chronic GVHD hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapiesp-value: 0.00295% CI: [0.381, 0.813]Regression, Cox
Secondary

Percentage of Participants With CMV at Day 100 Post-transplant

The cumulative incidence of initiation of systemic treatment for CMV was compared between the treatment groups using the Gray's test, with death treated as a competing risk. Estimates of the cumulative incidence of CMV reactivation are provided at Day 100 post-transplant.

Time frame: Day 100 post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With CMV at Day 100 Post-transplant7.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With CMV at Day 100 Post-transplant7.1 percentage of participants
Comparison: The null hypothesis is that there is no difference of CMV between the treatment groupsp-value: 0.825Gray's test for cumulative Incidence
Secondary

Percentage of Participants With Disease-Free Survival (DFS) at 1 Year Post-transplant

DFS is defined as being alive and free of relapse/progression of the primary disease. The time from transplant until death or relapse/progression (DFS failure) was described for each treatment arm using the Kaplan-Meier estimator, with numbers of subjects at risk at specific time points presented for each treatment group. A multivariate Cox regression model for the hazard of death will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Disease-Free Survival (DFS) at 1 Year Post-transplant67.0 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Disease-Free Survival (DFS) at 1 Year Post-transplant62.6 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of Disease-Free Survival between the treatment groupsp-value: 0.351Log Rank
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of Disease-Free Survival hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapiesp-value: 0.3295% CI: [0.61, 1.176]Regression, Cox
Secondary

Percentage of Participants With Disease Relapse at 1 Year Post-transplant

Disease relapse/progression is defined as being alive and free of relapse/progression of the primary disease. The time from transplant until relapse/progression of the primary disease, or cumulative incidence, was estimated at one-year post-transplant along with 95% CIs computed using the complementary log-log transformation, treating death prior to disease relapse as a competing event. A multivariate Cox regression model for the cause-specific hazard of relapse or progression will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Disease Relapse at 1 Year Post-transplant20.8 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Disease Relapse at 1 Year Post-transplant20.2 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of Disease Relapse between the treatment groupsp-value: 0.906Gray's test for cumulative Incidence
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of Disease Relapse hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapiesp-value: 0.94795% CI: [0.641, 1.515]Regression, Cox
Secondary

Percentage of Participants With Grade 2 and 3 Infections

Grade 2 and 3 infections, as defined by the BMT CTN Technical Manual of Procedures (MOP), are reported on the study. The cumulative incidence of infections post transplantation, treating death as a competing risk, were compared between the treatment groups using the Gray's test.

Time frame: 6 months and 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Grade 2 and 3 Infections6 months post-transplant36.4 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Grade 2 and 3 Infections1 year post-transplant40.0 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grade 2 and 3 Infections6 months post-transplant24.1 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grade 2 and 3 Infections1 year post-transplant30.4 percentage of participants
Comparison: The null hypothesis is that there is no difference of Grade 2 and 3 infections between the treatment groupsp-value: 0.018Gray's test for cumulative Incidence
Secondary

Percentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplant

Acute GVHD was graded according to Mount Sinai aGVHD International Consortium (MAGIC) Criteria (Harris et al. 2016) with higher grade indicating worse outcomes. Grade I aGVHD is defined as Skin stage 1-2 and stage 0 for both GI and liver. Grade II is stage 3 skin, stage 1 GI, or stage 1 liver. Grade III is stage 2-3 GI or stage 2-3 liver. Grade IV is stage 4 skin or stage 4 liver. The cumulative incidence of acute GVHD grade II-IV and III-IV at Day 100 was estimated using the Aalen-Johansen estimator with 95% confidence intervals, treating death prior to aGVHD as a competing event. The cumulative incidences of Minnesota standard and high risk aGVHD at Day 100 were determined with 95% confidence intervals. Time to aGVHD is defined as time from transplant until onset of grades II-IV and III-IV aGVHD, respectively. A multivariate Cox regression model was used to compare the treatment groups, with adjustment for same baseline characteristics as for the primary endpoint.

Time frame: Days 100 post-transplant

Population: Analysis Population includes transplanted participants.

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantMAGIC aGVHD Grade II-IV53.8 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantMAGIC aGVHD Grade III-IV6.3 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantStandard risk aGVHD64.1 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantHigh risk aGVHD13.1 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantHigh risk aGVHD18.5 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantMAGIC aGVHD Grade II-IV51.9 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantStandard risk aGVHD64.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Grades II-IV and III-IV Acute GVHD at Day 100 Post-transplantMAGIC aGVHD Grade III-IV14.7 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of grade II-IV acute GVHD post-transplantation between the treatment groups.p-value: 0.995Gray's test for cumulative Incidence
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of grade III-IV acute GVHD post-transplantation between the treatment groupsp-value: 0.001Gray's test for cumulative Incidence
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of grade II-IV acute GVHD post-transplantation between the treatment groups using a Cox regression model for the cause-specific hazard of aGVHDp-value: 0.87995% CI: [0.758, 1.267]Regression, Cox
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of grade III-IV aGVHD hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapies.p-value: 0.00195% CI: [0.215, 0.691]Regression, Cox
Secondary

Percentage of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant

Participants who are alive, relapse-free, and do not need ongoing immune suppression to control GVHD at one year post-transplant are considered successes for the endpoint immunosuppression-free survival (ISFS). Percentage of participants alive, relapse free, and off immune suppression at 1 year post-transplant were described for each treatment group, along with 95% Clopper-Pearson confidence intervals.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted and evaluable participants for ISFS.

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant50 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Immunosuppression-Free Survival (ISFS) at 1 Year Post-transplant39.7 percentage of participants
Comparison: The null hypothesis is that there is no difference of Immunosuppression-Free Survival between the treatment groupsp-value: 0.038Chi-squared
Secondary

Percentage of Participants With Lymphocyte Recovery Post-transplant

Lymphocyte recovery is defined as the first day of sustained absolute lymphocyte count greater than or equal to 1000/mm\^3. The competing event is death without lymphocyte recovery. The cumulative incidence estimate of Lymphocyte recovery were described by treatment group with 95% confidence intervals (complementary log-log transformation), treating death as a competing event.

Time frame: Day 60, Day 100, 6 Months, and 1 year post-transplant

Population: Analysis Population includes transplanted participants with lymphocyte recovery data provided.

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Lymphocyte Recovery Post-transplantDay 60 post-transplant29.6 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Lymphocyte Recovery Post-transplantDay 100 post-transplant32.5 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Lymphocyte Recovery Post-transplant6 Months post-transplant41.5 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Lymphocyte Recovery Post-transplant1 Year post-transplant47.1 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Lymphocyte Recovery Post-transplant1 Year post-transplant63.2 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Lymphocyte Recovery Post-transplantDay 60 post-transplant48.2 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Lymphocyte Recovery Post-transplant6 Months post-transplant58.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Lymphocyte Recovery Post-transplantDay 100 post-transplant52.5 percentage of participants
Comparison: The null hypothesis is that there is no difference of Lymphocyte Recovery between the treatment groupsp-value: <0.001Gray's test for cumulative Incidence
Secondary

Percentage of Participants With Lymphoproliferative Disease (PTLD) at 1 Year Post-Transplant

The cumulative incidence of lymphoproliferative disease at 1-year post-transplant is described with 95% confidence intervals for each treatment group using the Aalen-Johansen estimator, treating death as a competing event.

Time frame: 1 year Post-Transplant

Population: Analysis Population includes transplanted participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Lymphoproliferative Disease (PTLD) at 1 Year Post-Transplant0.5 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Lymphoproliferative Disease (PTLD) at 1 Year Post-Transplant0 percentage of participants
Secondary

Percentage of Participants With Neutrophil Recovery Post-transplant

Neutrophil recovery is defined as achieving an absolute neutrophil count (ANC) greater than or equal to 500/mm\^3 for three consecutive measurements on three different days. The first of the three days will be designated the day of neutrophil recovery. The competing event is death without neutrophil recovery. For participants who never drop ANC below 500/mm\^3, the date of neutrophil recovery will be Day +1 post-transplant. The cumulative incidence of neutrophil recovery by Day 28 and Day 100 was described for each treatment group with point estimates and 95% confidence intervals using the complementary log-log transformation and treating death as a competing event.

Time frame: Days 28 and day 100 post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Neutrophil Recovery Post-transplantDay 28 post-transplant90.3 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Neutrophil Recovery Post-transplantDay 100 post-transplant92.7 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Neutrophil Recovery Post-transplantDay 28 post-transplant93.4 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Neutrophil Recovery Post-transplantDay 100 post-transplant97.2 percentage of participants
Comparison: The null hypothesis is that there is no difference of Neutrophil Recovery between the treatment groupsp-value: 0.032Gray's test for cumulative Incidence
Secondary

Percentage of Participants With Overall Survival (OS) at 1 Year Post-transplant

The event for this endpoint OS is death from any cause post-transplant. Time to overall survival is defined as the time interval between date of transplant and date of death from any cause. Surviving participants will be censored at last follow-up or 1 year post-transplant, whichever comes first. The time from transplant until death from any cause was described graphically for each treatment arm using the Kaplan-Meier estimator, with numbers of subjects at risk at specific time points presented for each treatment group. A multivariate Cox regression model for the hazard of death will be used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.

Time frame: 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Overall Survival (OS) at 1 Year Post-transplant76.8 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Overall Survival (OS) at 1 Year Post-transplant72.6 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of Overall Survival between the treatment groupsp-value: 0.335Log Rank
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of the Overall Survival hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapiesp-value: 0.25295% CI: [0.541, 1.175]Regression, Cox
Secondary

Percentage of Participants With Platelet Recovery Post-transplant

Platelet recovery is defined by two different metrics: the first day of a sustained platelet count greater than or equal to 20,000/mm\^3 or greater than or equal to 50,000/mm\^3 with no platelet transfusions in the preceding seven days. The first day of sustained platelet count above these thresholds will be designated the day of platelet engraftment. For participants who never drop their platelet count below 20,000/mm\^3 or 50,000/mm\^3, the date of platelet recovery will be Day +1 post HCT. The competing event is death without platelet recovery. The cumulative incidence estimate of platelet recovery by Day 60 and Day 100 were described by treatment group with 95% confidence intervals (complementary log-log transformation), treating death as a competing event.

Time frame: Day 60 and Day 100 post-transplant

Population: Analysis Population includes transplanted participants with platelet recovery data provided

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Platelet Recovery Post-transplantDay 60 post-transplant of Platelet Recovery to >20k88.3 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Platelet Recovery Post-transplantDay 100 post-transplant of Platelet Recovery to >20k90.3 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Platelet Recovery Post-transplantDay 60 post-transplant of Platelet Recovery to >50k77.6 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Platelet Recovery Post-transplantDay 100 post-transplant of Platelet Recovery to >50k79.5 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Platelet Recovery Post-transplantDay 100 post-transplant of Platelet Recovery to >50k83.7 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Platelet Recovery Post-transplantDay 60 post-transplant of Platelet Recovery to >20k91.8 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Platelet Recovery Post-transplantDay 60 post-transplant of Platelet Recovery to >50k82.7 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Platelet Recovery Post-transplantDay 100 post-transplant of Platelet Recovery to >20k92.8 percentage of participants
Comparison: The null hypothesis is that there is no difference of Platelet Recovery greater than or equal to 20,000/mm\^3 between the treatment groupsp-value: <0.001Gray's test for cumulative Incidence
Comparison: The null hypothesis is that there is no difference of Platelet Recovery greater than or equal to 50,000/mm\^3 between the treatment groupsp-value: <0.001Gray's test for cumulative Incidence
Secondary

Percentage of Participants With Treatment-related Mortality (TRM) Post-transplant

An event for this endpoint TRM is death without evidence of disease progression or recurrence. Disease progression or recurrence will be considered a competing event. The time from transplant until TRM, or cumulative incidence, estimated at specific time points along with 95% CIs computed using the complementary log-log transformation, treating relapse/progression of the primary disease as a competing risk. A multivariate Cox regression model for the cause-specific hazard of TRM was used to compare the treatment groups, after adjustment for baseline characteristics as described for the primary endpoint.

Time frame: Days 100, 180 and 1 year post-transplant

Population: Analysis Population includes transplanted participants

ArmMeasureGroupValue (NUMBER)
PTCY/Tacrolimus/MMFPercentage of Participants With Treatment-related Mortality (TRM) Post-transplantDay 100 post-transplant6.8 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Treatment-related Mortality (TRM) Post-transplantDay 180 post-transplant8.8 percentage of participants
PTCY/Tacrolimus/MMFPercentage of Participants With Treatment-related Mortality (TRM) Post-transplant12 Months post-transplant12.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Treatment-related Mortality (TRM) Post-transplantDay 100 post-transplant7.6 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Treatment-related Mortality (TRM) Post-transplantDay 180 post-transplant13.3 percentage of participants
Tacrolimus/MethotrexatePercentage of Participants With Treatment-related Mortality (TRM) Post-transplant12 Months post-transplant17.2 percentage of participants
Comparison: This is the unadjusted analysis. The null hypothesis is that there is no difference of Treatment-related Mortality between the treatment groupsp-value: 0.167Gray's test for cumulative Incidence
Comparison: This is the result of the Cox proportional hazards analysis. The null hypothesis is that there is no difference of Treatment-related Mortality hazard ratio between treatment groups after adjustment for age group, donor type and HLA Matching Score, disease risk index, Planned RIC Conditioning Regimen, and Planned post-transplant maintenance therapiesp-value: 0.13395% CI: [0.404, 1.127]Regression, Cox
Secondary

Summary Statistics for Donor Chimerism

Donor cell engraftment were assessed with donor/recipient chimerism studies. Mixed chimerism is defined as the presence of donor cells, as a percentage of total cells to be less than 95% but at least 5% in the bone marrow or peripheral blood. Full donor chimerism is defined as greater than or equal to 95% of donor cells. Mixed and full chimerism will be evidence of donor cell engraftment. Donor cells of less than 5% will be considered as graft rejection. Donor chimerism at Day 28 and Day 100 after transplant in each of the randomized treatment arms will be described numerically as median and range for those evaluable.

Time frame: Day 28 and Day 100 post-transplant

Population: Analysis Population includes transplanted participants who submitted post-transplant assessments.

ArmMeasureGroupValue (MEDIAN)
PTCY/Tacrolimus/MMFSummary Statistics for Donor ChimerismDay 28 post-transplant100 percentage of donor cells
PTCY/Tacrolimus/MMFSummary Statistics for Donor ChimerismDay 100 post-transplant99 percentage of donor cells
Tacrolimus/MethotrexateSummary Statistics for Donor ChimerismDay 28 post-transplant100 percentage of donor cells
Tacrolimus/MethotrexateSummary Statistics for Donor ChimerismDay 100 post-transplant99 percentage of donor cells
Comparison: The null hypothesis is that there is no difference of quantitative donor chimerism at Day 28 after transplantation between the treatment groupsp-value: 0.67Wilcoxon (Mann-Whitney)
Comparison: The null hypothesis is that there is no difference of quantitative donor chimerism at Day 100 after transplantation between the treatment groupsp-value: 0.607Wilcoxon (Mann-Whitney)

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026