Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 65 and up

Using cyclophosphamide for older patients after stem cell transplant

Official title: 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

Run by Cedars-Sinai Medical Center · NCT05849207 · Data updated 2026-11-12

This study is testing the best dose of cyclophosphamide for older patients receiving a specific type of stem cell transplant to see how it affects their recovery and health.

Quick facts

PhasePhase 1
Study typeInterventional
Ages65 Years and up
SexAll
Enrollment26 (estimated)
SponsorCedars-Sinai Medical Center
Academic / other
Drugs / interventionscyclophosphamide
Locations1 site (Los Angeles, California)
StatusRecruiting
StartedOctober 24, 2023
Main results expectedJuly 1, 2027
Study endsJuly 1, 2028
Registry record updatedAugust 5, 2026
Trial IDNCT05849207 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients aged 65 years and older who are eligible for allogeneic stem cell transplantation.

Probably not a fit

Patients with myelofibrosis or those who have undergone prior stem cell transplants may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase 1 study aims to find the optimal dose of cyclophosphamide, an immune suppressive drug, for patients aged 65 and older who are undergoing haploidentical stem cell transplantation for hematologic malignancies. Participants will receive either a standard or reduced dose of cyclophosphamide following their transplant. The study will include various assessments such as cardiac MRI scans, laboratory tests, and geriatric evaluations to monitor the patients' health and response to treatment. Follow-up visits will occur at specified intervals up to one year post-transplant.

Why it matters

Potential benefit: If successful, this study could improve transplant outcomes and reduce complications for older patients with hematologic malignancies.

How similar studies have gone: Other studies have explored the use of cyclophosphamide in transplant settings, but this specific approach for older patients is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
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.

Where it's running

  • Cedars-Sinai Medical Center
    Los Angeles, California, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.