Clinical trial Recruiting at 1 site Observational Ages 18 to 60

Improved methods for selecting cells in bone marrow transplants

Official title: Use of Granulocyte Colony Stimulating Factor (G-CSF) Mobilized Leukapheresis Collections From Healthy Volunteers to Develop Improved Methods of Stem Cell and Lymphocyte Selection for Allogeneic Transplantation

Run by National Institutes of Health Clinical Center (CC) · NCT00001529 · Data updated 2026-11-12

This study is testing new ways to select cells from healthy donors for bone marrow transplants to see if it can make the procedure safer and more effective for patients with blood disorders.

Quick facts

Study typeObservational
Ages18 Years to 60 Years
SexAll
Enrollment500 (estimated)
SponsorNational Institutes of Health Clinical Center (CC)
NIH
Locations1 site (Bethesda, Maryland)
StatusRecruiting
StartedMarch 18, 1996
Registry record updatedNovember 6, 2026
Trial IDNCT00001529 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are healthy individuals aged 18 to 60 who meet specific health criteria.

Probably not a fit

Patients with active infections, significant health issues, or those outside the age range 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 study focuses on enhancing the safety and effectiveness of allogeneic bone marrow transplants by exploring new techniques for cell selection. Researchers aim to use peripheral blood stem cells (PBSC) collected from healthy donors, utilizing G-CSF to mobilize these cells. The study will analyze the collected samples to develop methods that can reduce the risk of graft-versus-host disease (GVHD) while preserving the donor's immune function. By testing various purification approaches, the research seeks to improve transplantation outcomes for patients with blood disorders.

Why it matters

Potential benefit: If successful, this study could lead to safer bone marrow transplant procedures with reduced risk of complications for patients.

How similar studies have gone: Previous studies have shown promise in using T cell depletion and delayed lymphocyte add-back strategies, indicating potential success for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
* INCLUSION CRITERIA:
* Healthy individual aged 18 to 60 years.
* No active infection or history of recurrent infection.
* Normal renal function: creatinine \<1.5 mg/dL or estimated glomerular filtration rate (eGFR) \>=60 mL/min/1.73 m\^2, with no significant proteinuria.

Normal liver function: bilirubin \<2.0 mg/dL (when unconjugated), transaminases \<2.0x ULN in the absence of known liver disease.

Normal blood count: WBC 2,500-11,000/microliter, ANC \>1,500/microliter, platelets \>150,000/microliter, hemoglobin \>12.0 g/dL.

* Normal cardiovascular function, no history of chest pain, myocardial infarction, peripheral vascular disease, transient ischemic attack, or stroke.
* Healthy female subjects of childbearing age should have a negative serum pregnancy test with one week of beginning G-CSF administration.
* Female subjects should not be lactating.
* Subject must be eligible for normal blood donation. He or she must be tested negative for syphilis (RPR), hepatitis B and C (HBsAg, Anti-HBc, Anti-HCV), HIV, HTLV-1, West Nile virus, T. Cruzi and Babesia test.
* Subject must be able to comprehend the investigational nature of the study and provide informed consent to participate in the protocol.
* Antecubital veins must be adequate for peripheral access during apheresis. Potential participants must be screened by an apheresis nurse to check venous access before protocol entry.

EXCLUSION CRITERIA:

* Active viral, bacterial, fungal or parasite infection.
* Female with positive pregnancy test or lactating.
* Active or moderate-to-severe autoimmune disease that is currently treated or expected to require immunosuppressive therapy. Candidates with stable, well-controlled mild autoimmune disease may be considered on a case-by-case basis.
* Active or recent malignancy within the past 5 years. Individuals with remote (\>5 years) histories of low-risk malignancies in remission (e.g., localized prostate cancer) or treated basal cell carcinoma may be included.
* History of any hematologic disorders.
* History of clinically significant cardiovascular disease (e.g., symptomatic coronary artery disease, uncontrolled hypertension). Minor risk factors must be evaluated on a case-by-case basis (e.g., controlled hypertension).
* Any positive serum screening test as listed in eligibility.
* Allergy to G-CSF or bacterial E coli products.
* Administration of NSAID within. 5-7 days of starting the protocol, depending on drug half-life.
* History of G-CSF administration and leukapheresis within past 3 months.

Where it's running

  • National Institutes of Health Clinical Center
    Bethesda, Maryland, United States
    Recruiting

Study contacts

  • Principal investigator: Andre Larochelle, M.D. — National Heart, Lung, and Blood Institute (NHLBI)
  • Study coordinator: Richard A Gustafson, R.N.
  • Email: richard.gustafson@nih.gov
  • Phone: (301) 402-5822

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.