Filgrastim + Plerixafor for Bone Marrow Failure Syndrome

Age: 18 - 65
Sex: Any
Trial Phase: Phase 1
Sponsor: St. Jude Children's Research Hospital
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial examines the safety and feasibility of collecting hematopoietic stem and progenitor cells (HSPCs) from individuals with bone marrow failure syndromes. The study uses two drugs: Filgrastim, which stimulates white blood cell production, and Plerixafor, which mobilizes stem cells into the bloodstream for collection. These collected cells may be used in future gene therapy. This trial suits individuals with a genetic type of bone marrow failure syndrome who can donate cells for research and have not undergone a prior bone marrow transplant. As a Phase 1 trial, the research focuses on understanding how the treatment works in people, offering participants a chance to contribute to groundbreaking research.

Do I have to stop taking my current medications for the trial?

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Is there any evidence suggesting that this treatment is likely to be safe for humans?

Research has shown that using Filgrastim and Plerixafor together is generally safe. Studies have found that this combination effectively mobilizes stem cells, with side effects that are usually manageable. Most side effects are mild, such as nausea, fatigue, or slight bone pain. Serious side effects are rare but can occur. For instance, in a study with a similar drug combination, some patients experienced serious issues like disease progression or transplant complications, though these were not directly linked to the treatment. Overall, this combination has been used successfully in other contexts, indicating it is a safe choice for many patients.12345

Why are researchers excited about this trial's treatments?

Researchers are excited about the combination of Filgrastim and Plerixafor for bone marrow failure syndrome because it introduces a novel method to mobilize and collect stem cells more effectively. Unlike standard treatments that primarily focus on managing symptoms, this approach aims to gather CD34+ hematopoietic stem and progenitor cells (HSPCs) through apheresis, which could potentially pave the way for future gene therapy applications. This method not only offers a new way to address the root cause of the condition but also holds promise for advancing research into long-term, curative treatments.

What evidence suggests that Filgrastim and Plerixafor might be effective for bone marrow failure syndrome?

Research has shown that using Filgrastim and Plerixafor together effectively gathers stem cells, crucial for treating conditions like bone marrow failure syndromes (BMFS). In this trial, participants will receive a combination of Filgrastim and Plerixafor to facilitate the collection of CD34+ HSPCs via apheresis. Studies have found that Plerixafor, when combined with Filgrastim, aids in collecting these vital cells even in patients who struggled with other methods. In some cases, this combination successfully mobilized stem cells in up to 80% of individuals with similar conditions. This increased mobilization ensures enough stem cells are collected for potential treatments, such as gene therapy. Overall, this combination shows promise for collecting stem cells in challenging cases.13467

Who Is on the Research Team?

AL

Alexis Leonard, MD

Principal Investigator

St. Jude Children's Research Hospital

Are You a Good Fit for This Trial?

This trial is for people aged 18 to 25 with bone marrow failure syndromes caused by a known genetic issue. Participants must have stable blood counts, recent bone marrow evaluation, be healthy enough for the procedure, and test negative for certain infections.

Inclusion Criteria

Bone marrow evaluation within the preceding 6 months prior to mobilization and apheresis
I have a genetic bone marrow failure and am willing to donate my own stem cells.
I am between 18 and 25 years old.
See 7 more

Exclusion Criteria

I have sickle cell disease.
I have had a stem cell transplant in the past.
I currently have an active infection.
See 11 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

At least 6 months
Labs, physical examination, and bone marrow evaluation

Intervention

Mobilization and apheresis of patient HSPCs using Filgrastim and plerixafor

5 days
Daily visits for drug administration and apheresis

Follow-up

Participants are monitored for safety and effectiveness after treatment

7-10 days
Outpatient follow-up and telephone follow-up approximately 30 days after intervention

Long-term Follow-up

Bone marrow evaluation within 6 months post-intervention

Within 6 months

What Are the Treatments Tested in This Trial?

Interventions

  • Filgrastim
  • Plerixafor

Trial Overview

The study tests if two drugs—Filgrastim and Plerixafor—can safely help move stem cells from the bone marrow into the bloodstream so they can be collected using a process called leukapheresis. The goal is to see if this method works well and is safe.

How Is the Trial Designed?

1

Treatment groups

Experimental Treatment

Group I: BDSTEM TreatmentExperimental Treatment3 Interventions

Find a Clinic Near You

Who Is Running the Clinical Trial?

St. Jude Children's Research Hospital

Lead Sponsor

Trials
451
Recruited
5,326,000+

Citations

Plerixafor and granulocyte colony-stimulating factor for first- ...

There were no reports of secondary graft failure. Twelve patients had disease progression or recurrence within 12 months after their transplant.

Plerixafor for Stem Cell Mobilization in Normal Donors

The disease, disorder, syndrome, illness, or injury that is being studied. ... Failure to submit primary and secondary outcomes. Correction: Shown when the ...

Plerixafor - an overview | ScienceDirect Topics

Plerixafor was also effective in remobilization attempts for patients who failed initial collection goals.93 Plerixafor clearance is proportional to the degree ...

Plerixafor Salvage Is Safe and Effective in Hard-to-Mobilize ...

... disease control [9–11]. Limited data are available on the preemptive use of plerixafor salvage in patients failing to collect adequate numbers of PBPC with ...

Plerixafor - Medical Clinical Policy Bulletins

Current mobilization regimens are associated with a substantial failure rate irrespective of underlying disease. Patients who fail initial mobilization are more ...

Non-inferiority Study of XM02 Filgrastim (Granix) and ...

The disease, disorder, syndrome, illness, or injury that is being studied. ... Submission of false or misleading clinical trial information; Failure to submit ...

Salvage Bone Marrow Harvest in Patients Failing Plerixafor ...

These data suggest, limited incremental benefit of a salvage BMH after plerixafor mobilization failure, cautioning against routine use of this strategy.