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Study identifier: NCT00967785 Synced from ClinicalTrials.gov · July 28, 2026
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A Phase I Study of Mozobil in the Treatment of Patients With WHIMS

Condition: Leukopenia · Neutropenia · Infections  ·  Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

PhasePhase 1/Phase 2
Planned participants20
Who can joinAll sexes, 18 Years to 75 Years
Healthy volunteersNo

About this study

Background: * WHIMS (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome) is caused by various genetic changes that increase the activity of the chemokine receptor, CXCR4. Excessive function of this receptor causes mature neutrophils (part of the white blood cells) to be retained within the bone marrow rather than being released to the blood and is one of the causes of severe inherited neutropenia (low white blood counts). In neutropenia, the body is less able to fight off infection. Patients with WHIMS usually are at risk for skin, soft tissue, sinus, and lung infections, which can result in loss of hearing, teeth, and lung function. * Current treatment for WHIMS consists of regular injections of a white blood cell growth stimulating medication called granulocyte colony stimulating factor (G-CSF), and supplemental immunoglobulin (antibody). These therapies are expensive, nonspecific, have significant side effects and toxicities, and do not fully correct all problems, especially warts and cancers related to human papillomavirus (HPV). * A drug called Mozobil has been approved for use in combination with G-CSF to increase the number of stem cells that can be collected prior to bone marrow transplantation. Mozobil may offer a specific and well-tolerated new treatment for WHIMS and other syndromes characterized by neutropenia. Objectives: * To evaluate whether Mozobil is safe and effective to treat neutropenia (low white blood cell count) in patients with WHI…

This description comes directly from the study's public registry record.

Talk to the study team

Elena J Cho  ·  (301) 761-7280  ·  elena.cho@nih.gov

David H McDermott, M.D.  ·  (301) 761-6647  ·  dmcdermott@niaid.nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT00967785