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NCT00000667 · ClinicalTrials.gov registry record · Phase 1
A Phase I/II Dose Escalation Study of Intradermal gp160 to Evaluate Safety, Delayed Type Hypersensitivity (Skin Test) Responses and Immunogenicity in Asymptomatic HIV Seropositive Patients With More Than 400 CD4+ Cells
A Phase 1 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
- Completed
- Registry status
- Phase 1
- Development phase
- 20
- Enrollment target
NCT00000667: Completed Phase 1 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
NCT00000667 is a Phase 1 study that has completed, run by National Institute of Allergy and Infectious Diseases (NIAID). The registered enrollment target is 20 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00000667, a Phase 1 study, has completed, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 20 participants
- Enrollment target
Study Summary
To determine the safety of intradermal gp160 in HIV seropositive individuals who are asymptomatic and have a relatively intact immune system. To determine whether there is evidence of a delayed-type hypersensitivity (DTH) response (a "positive" skin test) in these patients, and also the dose of gp160 that elicits a delayed-type hypersensitivity (DTH) response. Early immunity to HIV may play an important role in the long interval between virus infection and the onset of clinical disease. Immune responses have been demonstrated in HIV-infected individuals within weeks to months of infection. Although none of these responses has been shown to be protective, it is possible that boosting anti-HIV immune responses through immunization may slow the progression of HIV infection. DTH responses to HIV-derived recombinant envelope glycoprotein could provide a means of measuring an important immune function in infected patients, and serve as an easily measured surrogate marker of cellular immunity. In addition to eliciting local, cutaneous DTH responses, intradermal inoculation of skin test antigens may be immunogenic, resulting in new antibody production and cellular immune responses. This study allows direct comparison of gp160 administered intradermally with alum-adjuvanted intramuscular preparation with respect to immunogenicity in HIV seropositive patients.
Interventions
- BIOLOGICAL gp160 Vaccine (MicroGeneSys)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 20 participants |
| Est. Completion | 1993-07 |
| Phase | Phase 1 |
What the finished NCT00000667 record still lists
NCT00000667 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 20 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (67% lower).
The record links to 0 conditions, and to 1 intervention - of which gp160 Vaccine (MicroGeneSys) is the first listed.
NCT00000667 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00000667 about?
NCT00000667 is a clinical study titled "A Phase I/II Dose Escalation Study of Intradermal gp160 to Evaluate Safety, Delayed Type Hypersensitivity (Skin Test) Responses and Immunogenicity in Asymptomatic HIV Seropositive Patients With More Than 400 CD4+ Cells". To determine the safety of intradermal gp160 in HIV seropositive individuals who are asymptomatic and have a relatively intact immune system. To determine whether there is evidence of a delayed-type hypersensitivity (DTH) response (a "positive" skin test) in these patients, and also the dose of gp16...
What is the current status of trial NCT00000667?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 20 participants. Estimated completion is 1993-07.
What interventions are being tested in trial NCT00000667?
The interventions under investigation include: gp160 Vaccine (MicroGeneSys) (BIOLOGICAL).
Who is sponsoring clinical trial NCT00000667?
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 NCT00000667's enrollment target sits among peer trials
20 1629th of 2000 higher than 285 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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