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A Study to Evaluate the Effect of Cimetidine on CD4 Lymphocyte Counts in HIV Infection

A Study to Evaluate the Effect of Cimetidine on CD4 Lymphocyte Counts in HIV Infection

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00002092
Enrollment
Unknown
Registered
2001-08-31
Start date
Unknown
Completion date
Unknown
Last updated
2005-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections

Keywords

Acquired Immunodeficiency Syndrome, AIDS-Related Complex, Cimetidine

Brief summary

To determine the change in CD4 count after 4 and 8 weeks in HIV-infected patients treated with cimetidine compared to placebo. To observe time-associated trends at weeks 4, 8, 12, and 16 in the change of CD4 counts for patients taking cimetidine for the full 16 weeks. To establish a safety record for cimetidine use in HIV-positive patients.

Interventions

Sponsors

Community Research Initiative of New England
Lead SponsorOTHER

Study design

Primary purpose
TREATMENT

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Concurrent Medication: Allowed: * All FDA-approved medications, antiretrovirals, and PCP prophylaxis drugs, with the exception of warfarin (Coumadin). * Other self-prescribed medications available either over the counter or through buyer's clubs. Patients must have: HIV positivity. NOTE: * Patients on an antiviral or immunomodulating drug must have received it for at least 2 months and have no intention to make clinical or therapeutic changes in the first 8 weeks (such as adding a new agent or discontinuing effective viral suppressive therapy) that may interfere with the study. NOTE: * Patients who become pregnant after enrollment will be permitted to continue on study drug but must sign an additional informed consent indicating their awareness of the issues in taking a drug with limited safety data during pregnancy. Prior Medication: Allowed: * Antiviral and immunomodulating drugs, provided patient has been on such therapy for at least 2 months prior to study entry.

Exclusion criteria

Co-existing Condition: Patients with the following symptoms or conditions are excluded: * Known intolerance or hypersensitivity to cimetidine. * Evidence of active opportunistic infection or malignancy requiring high-dose systemic chemotherapy. * Any symptoms suggestive of concurrent illness that are not attributable to overall impairment by HIV or are not diagnosable based on the available evidence. * Inability to swallow tablets (gastric feeding tubes are allowed). * Not willing to comply with visit schedule and study procedures. Concurrent Medication: Excluded: * Warfarin (Coumadin). Prior Medication: Excluded within 4 weeks prior to study entry: * cimetidine (Tagamet), ranitidine (Zantac), famotidine (Pepcid), and nizatidine (Axid).

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026