Granulocyte transfusions in patients with chronic granulomatous disease and refractory infections: The NIH experience.
Beatriz E Marciano, Elisabeth S Allen, Cathy Conry-Cantilena...
https://pubmed.ncbi.nlm.nih.gov/28342916Actively Recruiting
Led by National Institute of Allergy and Infectious Diseases (NIAID) · Updated on 2026-04-24
25
Participants Needed
1
Research Sites
N/A
Total Duration
Researchers are investigating a new procedure to help cells in people with Chronic Granulomatous Disease (CGD) better fight infections. CGD is caused by a gene mutation that prevents cells from killing germs effectively, leading to frequent or serious infections. This phase 1, open-label trial aims to assess the safety and feasibility of giving patients with a specific CGD gene mutation a treatment involving messenger RNA (mRNA) to correct their blood cells temporarily. The treatment involves collecting granulocyte-enriched white blood cells from each participant through a procedure called apheresis. These cells are then treated with mRNA to correct the gene defect and infused back into the participant through an intravenous (IV) line. The trial uses a dose-escalation design with three doses: 1 million, 10 million, and up to 500 million cells per kilogram of body weight, given to different groups to find the safest and most effective dose. Participants receive one infusion and are monitored in the hospital for at least three days afterward. Participants will undergo medical exams, blood and urine tests, and throat swabs during screening and throughout the study. After hospital discharge, they will keep a symptom diary and have weekly contact for one month, then monthly follow-up visits including a final visit three months after infusion. Researchers will measure safety by tracking serious side effects, determine the maximum tolerated dose, and assess how well the corrected cells function and persist in the blood. The total study duration for each participant is about three months after treatment.
CONDITIONS
NADPH Oxidase Correction in mRNA-transfected Granulocyte-enriched Cells in Chronic Granulomatous Disease (CGD)
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Hospitalization for at least 3 days after infusion
Participants undergo granulocyte-enriched apheresis to provide cells for mRNA correction and then receive 1 intravenous infusion of CGD-Grans at an escalating dose. Participants are hospitalized for at least 3 days following the infusion for monitoring.
1 hospitalization period and regular blood collection during stay
Duration - Approximately 3 months
Participants return for a final study visit about 3 months after the infusion for safety and efficacy evaluations including blood collection.
1 final follow-up visit approximately 3 months after treatment
Total: 1 location
1
National Institutes of Health Clinical Center
Bethesda, Maryland, United States, 20892
Actively Recruiting
J
Joanna L Peterson
S
Suk S De Ravin, M.D.
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SEQUENTIAL
Primary Purpose
TREATMENT
Number of Arms
3
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