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Post-Transplant Cyclophosphamide in Patients Aged >/= 65 Years Undergoing Haploidentical Transplant

IIT2022-03-Paquette-GeriBMT: A Phase I Study of De-Escalation of Post-Transplant Cyclophosphamide Dosing in Patients Aged >/= 65 Years Undergoing Conditioning With Fludarabine and Total Body Irradiation 800 cGy

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05849207
Acronym
GeriBMT
Enrollment
26
Registered
2023-05-08
Start date
2023-10-24
Completion date
2028-07-01
Last updated
2026-08-05

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

Conditions

Hematologic Malignancies

Keywords

Allogeneic Transplantation

Brief summary

The purpose of this phase 1 study is to determine the optimal dose of the immune suppressive drug, cyclophosphamide, following standard allogeneic stem cell transplant in patients aged \>/= 65 years with hematologic malignancies.

Detailed description

The patients will receive a standard dose, or a reduced amount of the immune suppressive drug, cyclophosphamide, that is routinely administered after the transplant procedure. The following procedures will be performed: cardiac MRI scans and/or transthoracic echocardiogram (TTE); laboratory tests, geriatric assessments and tests to measure strength and stability. Participation in the study is expected to last up to one year with follow-up visits occurring on Day +30, Day +100, Day +180 and Day +365 following allogenic stem cell transplant.

Interventions

DRUGCyclophosphamide

Cyclophosphamide will be administered at 50, 40, 32, or 25 mg/k/d intravenous infusion (IV) continuously for two days starting 60-72 hours after transplant.

Sponsors

Ronald Paquette
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open-label trial De-escalation of post-transplant cyclophosphamide dosing

Eligibility

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

Inclusion criteria

* Patient age \>/= 65 years * Patient and related Donor (if applicable) sign the Informed Consent Form for the study. If donor is unrelated, donor does not sign Informed Consent Form and this will not affect recipient study eligibility. * Patient meets standard criteria for allogeneic stem cell transplant * Patient is deemed suitable to receive Flu/TBI 800 conditioning regimen as standard of care transplant * Donor is willing to donate peripheral blood stem cells

Exclusion criteria

* Patient has a diagnosis of myelofibrosis * Patient has high titer antibodies (\>10,000 mean fluorescent intensity) against one or more donor HLA antigens * Patient has undergone prior autologous or allogeneic stem cell transplant * Requiring sedation for cardiac MRIs. * Prohibited Implants and/or Devices: * Mechanical, magnetic or electrical activated implants (i.e. cardiac pacemakers, neurostimulators and infusion pumps) * Ferromagnetic implants and ferromagnetic foreign bodies, such as intracranial, aneurysm clips, shrapnel and intraocular metal chips as these could become dislodged. * Subjects with claustrophobia, problems being in enclosed spaces, or inability to lie supine.

Design outcomes

Primary

MeasureTime frameDescription
Maximum grade acute GVHD by day +100 by Modified Keystone Criteria100 days post-transplantEvaluate the frequency of grade III/IV acute GVHD using Modified Keystone Criteria

Secondary

MeasureTime frameDescription
Time to neutrophil and platelet engraftment60 days post-transplantDays to neutrophil and platelet engraftment since transplant
Non-Relapse mortality100 days post-transplantRate of treatment-related mortality
Chronic Graft Versus Host Disease (GVHD) at 1 year1-year post-transplant* Rate and severity of patients with chronic GVHD at day 365 post-transplantation. * Chronic GVHD is when the donated stem cells attack the body after 100 days post-transplant. Chronic GVHD is defined by NIH Consensus Criteria for chronic GVHD.
Relapse1-year post-transplantPercentage of patients who relapse by year 1
Overall Survival (OS)1-year post-transplantOverall survival at 1 year
Graft Versus Host Disease (GVHD)-free and Relapse Free Survival1-year post- transplantPercentage of patients without relapse or GVHD at 1 year
Change in cardiac functionFrom 60 days prior to transplant to 365 days post-transplantChange in cardiac (heart) injury defined by any of an increase in T1 time \> 500 ms from pre-transplant imaging, T2 time \> 5 ms from pre-transplant imaging, or a decrease in left ventricular ejection fraction \> 10% of the original measurement to below 53% from post-transplant imaging.
Change in active daily livingFrom 60 days prior to transplant to 365 days post-transplantChange in function over time as determined by Lawton Activities of Daily Living questionnaire. \- Patients will choose either 0 or 1 to rate their level of function with 1 being the highest level of function.
Change in functionFrom 60 days prior to transplant to 365 days post-transplantChange in function over time as determined by the Patient-Reported Outcomes Measurement Information System (PROMIS) Cancer Function Brief 3-Dimensional Profile. \- Patients will rate their physical condition and fatigue using an inverse 5-item likert scale where 5 represents the highest level of function or the greatest amount of impact on function.
Change in painFrom 60 days prior to transplant to 365 days post-transplantChange in pain over time as determined by the Patient-Reported Outcomes Measurement Information System (PROMIS) Cancer Function Brief 3-Dimensional Profile. \- Patients will rate their level of pain using a scale from 0 to 10 with 10 being the highest level of pain.
Change in physical functionFrom 60 days prior to transplant to 365 days post-transplantChange in lower limb functioning over time as evaluated by the Short Physical performance Battery. (SPPB). \- Patients will complete a series of tests evaluating balance, speed and standing capabilities. Patients will be rated using a scale of 0 to 12 where a score of less than 10 indicates mobility limitations.
Change in grip strengthFrom 60 days prior to transplant to 365 days post-transplantChange in grip strength as measured using the Jamar dynamometer (device used to measure grip)
Change in cognitive functionFrom 60 days prior to transplant to 365 days post-transplantChange in cognitive function over time using the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognition questionnaire. -Patients will rate their cognitive ability on a scale of 1 to 5 with 5 representing the least amount of difficulty.
Change in mental healthFrom 60 days prior to transplant to 365 days post-transplantChange in mental health over time using the Patient-Reported Outcomes Measurement Information System (PROMIS) 29 Depression Questionnaire. \- Patients will rate their level of depression on a scale of 1 to 5 with 5 representing the greatest level of depression.

Countries

United States

Contacts

CONTACTClinical Trials Navigator
GroupCancerTrialInformation@cshs.org310-423-5842
PRINCIPAL_INVESTIGATORRonald Paquette, MD

Cedars-Sinai Medical Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 6, 2026