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NCT00839436 · ClinicalTrials.gov registry record · Phase 1
Interleukin-7 (CYT107) Treatment of Idiopathic CD4 Lymphocytopenia: Expansion of CD4 T Cells (ICICLE)
A Phase 1 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
- Terminated
- Registry status
- Phase 1
- Development phase
- 21
- Enrollment target
NCT00839436: Clinical Trial Phase 1 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
NCT00839436 is a Phase 1 study that was terminated before completion, run by National Institute of Allergy and Infectious Diseases (NIAID). The registered enrollment target is 21 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (65% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00839436, a Phase 1 study, was terminated before completion, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
- TERMINATED
- Registry status
- Phase 1
- Development phase
- 21 participants
- Enrollment target
Study Summary
Background: * Idiopathic CD4 lymphocytopenia (ICL) is a condition in which patients have low levels of T cells, a type of white blood cell that helps fight infection. Animal studies have shown that an experimental drug Interleukin 7 (IL-7), which is named CYT107, can increase the number and function of T cells. CYT107, however, has not been used in people with ICL. Objectives: * To determine the safety of CYT107 in people with ICL. * To determine whether CYT107 will increase the number and function of T cells in people with ICL. Eligibility: * Patients 18 years of age and older diagnosed with ICL and who are at risk of becoming sick because of this condition are eligible for this study. In addition, patients must not be pregnant, or have other illnesses that would cause low CD4 T cell counts, such as human immunodeficiency virus (HIV) or human T-lymphotrophic virus (HTLV) infection. Design: * The initial screening visit will include the following examinations and tests: * A complete physical exam and medical history * Blood analysis, including CD4 T cell count; complete blood count and additional blood tests to determine clotting ability and blood composition; thyroid, liver, kidney, and pancreatic function tests; HIV and HTLV tests; and tests for anti-IL-7 antibodies that block normal IL-7 activity * Routine urine test * Urine or blood pregnancy test for women * Chest X-ray * Electrocardiogram * Spleen ultrasound. * The baseline visit will include blood tests to determine levels of each of the major types of antibodies, a test of genetic background, and more detailed CD4 and protein analysis. In addition, leukapheresis (a procedure to collect large numbers of immune cells without red blood cells) will be done. Participants will also have the option of having colon and lymph node biopsies. * The schedule will be as follows: * Weeks 1, 2, and 3 (Cycle 1): Three weekly IL-7 dosing visits. * Weeks 5, 8, and 12: Follow-up visits. * Weeks 24, 25, and 26 (Cycle 2):
Interventions
- DRUG CYT107
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 21 participants |
| Start Date | 2009-02 |
| Est. Completion | 2014-09 |
| Phase | Phase 1 |
Why NCT00839436 stopped before completion
NCT00839436 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 21 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (65% lower).
The record links to 0 conditions, and to 1 intervention - of which CYT107 is the first listed.
NCT00839436 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00839436 about?
NCT00839436 is a clinical study titled "Interleukin-7 (CYT107) Treatment of Idiopathic CD4 Lymphocytopenia: Expansion of CD4 T Cells (ICICLE)". Background: * Idiopathic CD4 lymphocytopenia (ICL) is a condition in which patients have low levels of T cells, a type of white blood cell that helps fight infection. Animal studies have shown that an experimental drug Interleukin 7 (IL-7), which is named CYT107, can increase the number and functio...
What is the current status of trial NCT00839436?
This trial is currently terminated. It is a Phase 1 study. The enrollment target is 21 participants. The study started on 2009-02. Estimated completion is 2014-09.
What interventions are being tested in trial NCT00839436?
The interventions under investigation include: CYT107 (DRUG).
Who is sponsoring clinical trial NCT00839436?
This trial is sponsored by National Institute of Allergy and Infectious Diseases (NIAID), which has 2,006 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00839436's enrollment target sits among peer trials
21 1615th of 2000 higher than 372 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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