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Optimizing GVHD Prophylaxis After Allogeneic Hematopoietic Cell Transplantation

A Phase II Randomized Trial to Optimize GVHD Prophylaxis After Allogeneic Hematopoietic Cell Transplantation in Older Adults With Hematological Malignancies: the PROMISE Trial

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06799195
Acronym
PTCYGVHD
Enrollment
126
Registered
2025-01-29
Start date
2025-06-23
Completion date
2031-11-30
Last updated
2025-12-15

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

Conditions

Hematological Malignancies, Graft-versus-Host Disease (GVHD)

Keywords

Allogeneic Hematopoietic Stem Cell Transplantation, GVHD Prophylaxis, Sirolimus, Mycophenolate Mofetil (MMF), Health-Related Quality of Life (HRQoL), Randomized Controlled Trial

Brief summary

This study will compare post-transplant health-related quality of life following the use of standard versus attenuated dose of post-transplant cyclophosphamide in addition to two-drug graft-versus-host disease (GVHD) prophylaxis among recipients of allogeneic hematopoietic stem cell transplant.

Detailed description

This is a single-center phase II study of 126 participants (63 per arm) with hematological malignancies. Participants will be randomized to receive high doses (standard arm) or attenuated doses of cyclophosphamide in addition to two-drug GVHD prophylaxis. Participants will be monitored for health-related quality of life \[Functional Assessment of Cancer Therapy-Bone Marrow Transplant, FACT-BMT(1)\], functional outcomes (Karnofsky Performance Scale (KPS), activities of daily living, instrumental activities of daily living, Clock-in-the-Box Test, Fried Frailty Index, fall history, BMI, and Geriatric Depression Scale-15, GVHD, relapse, survival, and toxicities (using Common Terminology Criteria for Adverse Events, CTCAE version 5.0).

Interventions

DRUGAttenuated-dose Cyclophosphamide

Cyclophosphamide administered at an attenuated dose of 25 mg/kg on days +3 and +4 post-transplant for GVHD prophylaxis.

Cyclophosphamide administered at the standard high dose of 50 mg/kg on days +3 and +4 post-transplant for GVHD prophylaxis.

DRUGSirolimus

Sirolimus is started on day +5 with a loading dose of 6 mg, followed by a maintenance dose of 2 mg daily, adjusted to target trough levels of 8-12 ng/mL. Sirolimus taper is recommended to start at day +90 and to be completed by day +180, provided there is no evidence of acute GVHD.

DRUGMycophenolate Mofetil (MMF)

MMF is started on day +5 at a dose of 15 mg/kg per dose (maximum 1 g per dose) three times daily. MMF is generally discontinued by day +35 in the absence of GVHD.

Sponsors

University of Nebraska
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Not applicable; the study is open-label.

Intervention model description

This is a single-center, randomized, phase II trial comparing two graft-versus-host disease (GVHD) prophylaxis regimens in older adults undergoing allogeneic hematopoietic stem cell transplantation. Participants are randomized into two arms: high-dose (standard care) versus attenuated-dose post-transplant cyclophosphamide (PTCy), both in addition to sirolimus and mycophenolate mofetil (MMF).

Eligibility

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

Inclusion criteria

* Adults aged 60 years or older * Diagnosis of a hematological malignancy or other serious hematological disorder that requires an allogeneic hematopoietic cell transplantation * Planned to receive any reduced-intensity conditioning regimen (any graft source is acceptable) and availability of human leukocyte antigen (HLA)-matched donor at HLA loci A, B, C, and HLA-DR beta chain antigen (DRB1) * Karnofsky Performance Status (KPS) of 70% or higher.

Exclusion criteria

* Previous history of one or more prior allogeneic stem cell transplants (i.e., second or third allogeneic transplant) * Planned use of high doses of cyclophosphamide (e.g., a total cyclophosphamide dose of approximately 50 mg/kg or more) as part of the conditioning regimen prior to allogeneic stem cell transplant. A lower dose of cyclophosphamide (e.g., fludarabine, cyclophosphamide, and low-dose total body irradiation regimen that uses 2 doses of cyclophosphamide at 14.5 mg/kg) is acceptable. * Known diagnosis of liver cirrhosis or other advanced liver disease that may impact cyclophosphamide metabolism. * Diagnosis of myelofibrosis * Creatinine clearance less than 40 mL/min/1.73 m², which may increase the risk of hemorrhagic cystitis with post-transplant cyclophosphamide (PTCy) * Systolic cardiac dysfunction with an ejection fraction of less than 45%. * Use of a haploidentical or mismatched donor. * Any other condition judged by the physician to increase the risk of toxicities associated with PTCy.

Design outcomes

Primary

MeasureTime frameDescription
Change in Health-Related Quality of Life as Measured by Functional Assessment of Cancer Therapy-Bone Marrow TransplantationBaseline and 3 months post-transplantThe health-related quality of life will be assessed using the Functional Assessment of Cancer Therapy-Bone Marrow Transplantation (FACT-BMT) trial outcome index (TOI). The FACT-BMT is a validated, patient-reported questionnaire that measures physical and functional well-being specifically in bone marrow transplant recipients. Higher scores indicate better quality of life. The primary outcome is to compare the FACT-BMT TOI scores between the attenuated-dose PTCy arm and the high-dose PTCy arm at 3 months post-transplant.

Secondary

MeasureTime frameDescription
Change in Activities of Daily LivingBaseline and 3 months post-transplantActivities of Daily Living (ADL) measures basic self-care tasks such as bathing and dressing. The typical total score ranges from 0 to 6, with higher scores indicating better functional status.
Change in Instrumental Activities of Daily LivingBaseline and 3 months post-transplantChange in Instrumental Activities of Daily Living (IADL) assesses more complex tasks (e.g., handling finances). Total scores typically range from 0 to 8 or 0 to 14 (depending on the version), with higher scores indicating greater independence.
Change in Fried Frailty IndexBaseline and 3 months post-transplantThe Fried Frailty Index assesses five components (weight loss, exhaustion, grip strength, walking speed, and physical activity). A higher total score indicates greater frailty.
Change in Clock-in-the-Box TestBaseline and 3 months post-transplantThis is a brief test of visuospatial and executive function, typically scored on accuracy of clock drawing/placement (range 0-8). Higher scores suggest better cognitive performance.
Change in History of FallsBaseline and 3 months post-transplantThe number of falls, if any, will be collected since baseline. Results will be analyzed as the proportion of participants experiencing ≥1 fall over the time frame, or as the difference in mean (or median) number of falls between arms.
Change in Body Mass IndexBaseline and 3 months post-transplantBody Mass Index (BMI) is calculated as weight (kg) / \[height (m)\]² (kg/m²). Higher or lower values do not necessarily indicate better or worse status by themselves but will be compared between arms for changes from baseline.
Change in Geriatric Depression Scale-15Baseline and 3 months post-transplantThe Geriatric Depression Scale-15 (GDS-15) is a 15-item screening tool for depression in older adults (scores 0-15). Higher scores indicate more severe depression.
Change in Karnofsky Performance ScaleBaseline and 3 months post-transplantKarnofsky Performance Scale (KPS) is a validated tool ranging from 0 (death) to 100 (normal activity). Higher scores indicate better functional status.
Overall Survival at 1 Year Post-Transplant and Event-Free SurvivalFrom date of transplant to 1 year post-transplantOverall Survival (OS) is defined as survival from the date of transplant until death from any cause. Event-Free Survival (EFS) is defined as survival from the date of transplant without disease relapse or progression. The study will compare the proportion of participants alive (for OS) and without relapse or progression (for EFS) at 1 year post-transplant between the two treatment arms
Cumulative Incidence of Transplant-Related MortalityFrom date of transplant to 1 year post-transplantTransplant-related mortality (TRM) is defined as death from causes other than disease relapse or progression. The study will estimate and compare the cumulative incidence of TRM at 1 year post-transplant between the two treatment arms.
Cumulative Incidence of Grade II-IV Acute GVHDFrom date of transplant to 1 year post-transplantAcute graft-versus-host disease (GVHD) of grade II-IV is assessed using the Mount Sinai acute GVHD grading system. The study will estimate and compare the cumulative incidence of grade II-IV acute GVHD at 1 year post-transplant between the two treatment arms.
Cumulative Incidence of Chronic GVHDFrom date of transplant to 1 year post-transplantChronic GVHD is assessed using the NIH chronic GVHD grading system, which includes both classical chronic GVHD and overlap syndrome. The study will estimate and compare the cumulative incidence of chronic GVHD at 1 year post-transplant between the two treatment arms.
To determine the cumulative incidence and kinetics of hematologic recovery (neutrophil and platelet) among the two treatment armsFrom date of transplant to day +28 and day +100 post-transplantHematologic recovery is evaluated by time to neutrophil engraftment (absolute neutrophil count ≥ 500/mm³ for three consecutive days) and platelet engraftment (platelet count ≥ 20,000/mm³ or ≥ 50,000/mm³ without transfusion for seven days). The study will describe and compare the cumulative incidence and kinetics of neutrophil and platelet recovery by days +28 and +100 post-transplant between the two treatment arms.
Incidence of Grade III or Higher Adverse EventsFrom date of transplant to day +100 post-transplantAdverse events will be graded using the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The study will assess and compare the incidence of grade III or higher adverse events by day +100 post-transplant between the two treatment arms.
Cumulative Incidence of Grade II or Higher InfectionsFrom date of transplant to 6 months post-transplantInfections will be graded according to Blood and Marrow Transplant Clinical Trials Network (BMT CTN) criteria. The study will estimate and compare the cumulative incidence of grade II or higher infections by 6 months post-transplant between the two treatment arms.
Gaft-Versus-Host Disease-Free, Relapse-Free SurvivalFrom date of transplant to 1 year post-transplantGraft-Versus-Host Disease (GRFS) is defined as the time from transplant to the first occurrence of grade III-IV acute GVHD, chronic GVHD requiring systemic immune suppression, disease relapse or progression, or death from any cause. An event is counted when any of these conditions are met. The GRFS at 1 year post-transplant will be compared between the two treatment arms.

Countries

United States

Contacts

Primary ContactTaylor Johnson
taylora.johnson@unmc.edu402-559-4596
Backup ContactIIT OFFICE
iitoffice@unmc.edu402-559-4596

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026