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Clinical Trials/NCT00002092
NCT00002092CompletedNot Applicable

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

Community Research Initiative of New England1 site in 1 countryStarted: August 31, 2001Last updated:
Conditions
Drugs

Trial Snapshot

Phase
Not Applicable
Status
Completed
Locations
1

Study Overview

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.

Study Design

Study Type
Interventional
Primary Purpose
Treatment

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •Concurrent Medication:
  • •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.
  • •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.
  • •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:
  • •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:
  • •Warfarin (Coumadin).
  • •Prior Medication:
  • •Excluded within 4 weeks prior to study entry:
  • •cimetidine (Tagamet), ranitidine (Zantac), famotidine (Pepcid), and nizatidine (Axid).

Investigators

Study Sites (1)

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