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Can a lower drug dose improve life after stem cell transplant for older adults?

NCT ID NCT06799195

Disease control Sponsor: University of Nebraska Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study is for adults aged 60 and older with blood cancers who need a stem cell transplant. It compares a standard high dose of a drug (cyclophosphamide) with a lower dose, both combined with another drug (sirolimus), to prevent graft-versus-host disease (GVHD). The goal is to see if the lower dose helps patients feel better and have a higher quality of life after transplant.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Cyclophosphamide (attenuated dose) and Sirolimus
What this could lead to
If successful, this could lead to a safer way to prevent graft-versus-host disease after stem cell transplants, improving quality of life for older adults with blood cancers.
What could go wrong
This is a small, early-phase trial, so results may not apply to all patients. The lower drug dose might not prevent GVHD as effectively, and side effects are still possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 126 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2025

Expected to finish

Nov 2031

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

60 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

graft versus host disease hematopoietic and lymphoid cell neoplasm hematopoietic and lymphoid system neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Graft-versus-host disease(GVHD) Hematological malignancies

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Nebraska Medical Center

    RECRUITING

    Omaha, Nebraska, 68198, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.