A Study to Evaluate the Use of Memantine In Combination With Anti-HIV Drugs to Treat AIDS Dementia Complex (ADC)

A Phase II, Randomized, Double Blind, Placebo-Controlled Trial of Memantine for AIDS Dementia Complex (ADC) as Concurrent Treatment With Antiretroviral Therapy

The purpose of this study is to determine the safety and effectiveness of memantine, an experimental drug, in improving AIDS dementia complex (ADC).

The symptoms of ADC can be improved with zidovudine (ZDV). However, ZDV therapy has been associated with significant toxicities, and the effectiveness of ZDV seems to decrease during the second and third years of therapy. The effectiveness of other antiretroviral drugs as treatment for ADC is not known, so it is important to explore alternative therapies.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

The signs and symptoms of the AIDS Dementia Complex can be alleviated by zidovudine (ZDV). However, ZDV therapy has been associated with significant toxicities, particularly bone marrow suppression. The efficacy of ZDV appears to decrease during the second and third years of therapy. It is not known whether this reflects cumulative toxicity. In addition, the efficacy of other antiretroviral agents remains uncertain. Hence, adjunctive therapy for cognitive and motor symptoms of AIDS is important.

Patients will be randomized to one of the following 2 arms:

Arm 1 receives memantine plus concurrent antiretroviral therapy; Arm 2 receives placebo plus concurrent antiretroviral therapy. The initial dose of memantine is increased each week for the next 3 weeks, unless a maximum tolerated dose is reached. Following a 16-week evaluation period there is a 4-week washout prior to re-assessment. After the washout period, all patients, including those formerly randomized to the placebo arm, are given the opportunity to receive an open-label, 12-week administration of memantine. [AS PER AMENDMENT 4/6/99: The open-label phase is extended by 48 weeks to a total of 60 weeks of therapy. Patients who did not receive the initial 12 weeks of open-label treatment are eligible still for the 48-week open-label treatment phase.]

Study Type

Interventional

Enrollment

120

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Los Angeles, California, United States, 90095
        • UCLA CARE Center CRS
      • San Francisco, California, United States, 94110
        • Ucsf Aids Crs
    • Florida
      • Miami, Florida, United States, 33136
        • Univ. of Miami AIDS CRS
    • Hawaii
      • Honolulu, Hawaii, United States, 96816
        • Univ. of Hawaii at Manoa, Leahi Hosp.
      • Honolulu, Hawaii, United States, 96816
        • Queens Med. Ctr.
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Cook County Hosp. CORE Ctr.
      • Chicago, Illinois, United States, 60611
        • Northwestern University CRS
    • Kentucky
      • Lexington, Kentucky, United States, 40536-0226
        • The Univ. of Kentucky, Lexington A2405 CRS
    • Massachusetts
      • Boston, Massachusetts, United States, 02118
        • Bmc Actg Crs
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess - East Campus A0102 CRS
    • Missouri
      • St. Louis, Missouri, United States, 63110
        • Washington U CRS
    • Nebraska
      • Omaha, Nebraska, United States, 68198
        • Univ. of Nebraska Med. Ctr., Durham Outpatient Ctr.
    • New York
      • Buffalo, New York, United States, 14215
        • SUNY - Buffalo, Erie County Medical Ctr.
      • New York, New York, United States, 10003
        • Beth Israel Med. Ctr. (Mt. Sinai)
      • New York, New York, United States, 10029
        • Mt. Sinai Med. Ctr. A0404 CRS
      • New York, New York, United States, 10029
        • Mt. Sinai Med. Ctr. (N.Y.) A1801 CRS
      • Rochester, New York, United States, 14642
        • Univ. of Rochester ACTG CRS
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Hosp. of the Univ. of Pennsylvania CRS
    • Washington
      • Seattle, Washington, United States, 98104
        • University of Washington AIDS CRS

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

You may be eligible for this study if you:

  • Are HIV positive.
  • Have been diagnosed with AIDS dementia complex (ADC).
  • Have an estimated IQ of at least 70 (before the onset of ADC) or the ability to read at a 6th grade level.
  • Have impaired mental skills.
  • Are age18 or older.

Exclusion Criteria

You will not be eligible for this study if you:

  • Have a history of a neurologic disease unrelated to HIV infection.
  • Have a history of chronic seizures or head injuries.
  • Have a history of central nervous system infections.
  • Have certain cancers.
  • Have any psychiatric illness.
  • Have an active AIDS-defining opportunistic infection.
  • Are pregnant or breast-feeding.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Interventional Model: PARALLEL

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Bradford Navia
  • Study Chair: Richard Price

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 1996

Study Completion (ACTUAL)

July 1, 2001

Study Registration Dates

First Submitted

November 2, 1999

First Submitted That Met QC Criteria

August 30, 2001

First Posted (ESTIMATE)

August 31, 2001

Study Record Updates

Last Update Posted (ESTIMATE)

June 10, 2013

Last Update Submitted That Met QC Criteria

June 7, 2013

Last Verified

June 1, 2013

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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