The Safety and Effectiveness of Cidofovir in the Treatment of Cytomegalovirus (CMV) of the Eyes in Patients With AIDS

June 23, 2005 updated by: Gilead Sciences

A Phase II/III Study of the Safety and Efficacy of 1-(S)-(3-Hydroxy-2-Phosphonylmethoxypropyl)Cytosine Dihydrate (Cidofovir; HPMPC) for the Treatment of Peripheral Cytomegalovirus Retinitis in Patients With AIDS

To determine whether cidofovir (HPMPC) therapy administered by intravenous infusion can extend the time to progression of peripheral cytomegalovirus (CMV) retinitis in AIDS patients. To evaluate the safety and tolerance of HPMPC therapy when administered by intravenous infusion in AIDS patients with CMV retinitis that is not immediately sight-threatening. To evaluate the virologic effects of intravenous HPMPC therapy on CMV shedding in urine, blood, and/or semen. To evaluate the impact of HPMPC therapy on visual acuity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Patients are randomized to one of two treatment arms. Group A receives HPMPC by IV infusion weekly for 2 consecutive weeks (induction) and then every other week (maintenance) with oral probenecid and IV hydration. Group B receives no treatment until the time of retinitis progression (deferred treatment), at which time they receive the same regimen as Group A, provided retinitis progression is not immediately sight-threatening.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
48

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • United Kingdom
      • London SW 10, United Kingdom
        • Charing Cross and Westminster Med School
  • United States
    • California
      • Los Angeles, California, United States, 90033
        • Los Angeles County - USC Med Ctr
      • Orange, California, United States, 92668
        • UCI Med Ctr
      • San Francisco, California, United States, 94115
        • Mount Zion Med Ctr
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Hosp
    • New Jersey
      • Princeton, New Jersey, United States, 085406681
        • Besselaar Associates
    • New York
      • Rochester, New York, United States, 14607
        • Univ of Rochester Med Ctr
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • Univ of North Carolina Hosps
    • Texas
      • San Antonio, Texas, United States, 78284
        • Audie L Murphy Veterans Administration Hosp

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

13 years to 60 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Antiretroviral agents.
  • Oral trimethoprim/sulfamethoxazole.
  • Aerosolized pentamidine.
  • Dapsone.
  • Fluconazole.
  • Rifabutin.
  • Filgrastim (G-CSF).
  • p24 vaccine.

Patients must have:

  • Diagnosis of AIDS by CDC criteria.
  • Diagnosis of peripheral (not immediately sight-threatening) CMV retinitis.
  • Visual acuity in the affected eye of >= three lines on the ETDRS (Early Treatment Diabetic Retinopathy Study) chart at 1 m distance.
  • Life expectancy of at least 3 months.
  • Consent of parent or guardian in patients less than 18 years of age.

Prior Medication:

Allowed:

  • Acyclovir.
  • Prior ganciclovir, foscarnet, or CMV hyperimmune immunoglobulin if given solely as prophylaxis.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

  • Media opacity that precludes visualization of the fundus of both eyes.
  • Retinal detachment.
  • Clinically significant cardiac disease, including symptoms of ischemia, congestive heart failure, or arrhythmia.
  • Active medical problems considered sufficient to hinder study compliance.
  • Known clinically significant allergy to probenecid.

Concurrent Medication:

Excluded:

  • Acyclovir (may be reinstituted following development of herpetic lesions).
  • Ganciclovir.
  • Foscarnet.
  • Amphotericin B.
  • Diuretics.
  • Aminoglycoside antibiotics.
  • CMV hyperimmune immunoglobulin.
  • Intravenous pentamidine.
  • Other nephrotoxic agents.
  • Other investigational drugs with potential nephrotoxicity.

Prior Medication:

Excluded:

  • Prior ganciclovir, foscarnet, or CMV hyperimmune immunoglobulin as therapy for CMV disease (although permitted if previously received solely as prophylaxis).

Excluded within 1 week prior to study entry:

  • Amphotericin B.
  • Vidarabine.
  • Other nephrotoxic agents.
  • Aminoglycoside antibiotics.
  • Intravenous pentamidine. Drug or alcohol abuse.

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

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gilead Sciences

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.

General Publications

  • Lalezari J, et al. A phase II/III randomized study of immediate versus deferred intravenous (IV) cidofovir (CDV, HPMPC) for the treatment of peripheral CMV retinitis (CMV-R) in patients with AIDS. Natl Conf Hum Retroviruses Relat Infect (2nd). 1995 Jan 29-Feb 2:170

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 Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 2, 1999

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 30, 2001

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 31, 2001

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 24, 2005

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 23, 2005

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 1994

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 216A
  • GS-93-106

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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