Completed

A Phase I/II Trial of Ribavirin (With Escalation) + Isoprinosine in Asymptomatic HIV-Viremic Patients

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What is being tested

Data Collection

Who is being recruted

Blood-Borne Infections+13

+ Urogenital Diseases

+ Genital Diseases

From 18 to 75 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 1
Interventional
See protocol details

Summary

Principal SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

RBV has prevented the development of AIDS in some HIV-infected patients with LAS and INPX has stimulated the immune system of patients infected with HIV. The immune system fights infections in the human body, and the HIV attacks T cells that are an important part of the immune system. Reports from individual cases treated with both RBV and INPX suggest that clinical improvements occurred in HIV-infected patients, but there is no reliable information on the safety and effectiveness of this drug combination in such patients. All patients take INPX capsules 4 times a day and RBV capsules 2 or 3 times a day. The first group of patients take the dose of RBV shown to be effective in an earlier trial and subsequent groups take higher doses until toxic effects occur. The planned treatment period is 3 months, but further treatment may be allowed for patients showing improvement. Blood samples are taken from an arm vein and used to evaluate possible changes in the patient's immune system, any toxic effects that might be detected in the blood and possible changes in the presence of HIV in the blood.

Official TitleA Phase I/II Trial of Ribavirin (With Escalation) + Isoprinosine in Asymptomatic HIV-Viremic Patients
Principal SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

20 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 75 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Blood-Borne InfectionsUrogenital DiseasesGenital DiseasesAIDS-Related ComplexCommunicable DiseasesImmunologic Deficiency SyndromesImmune System DiseasesInfectionsRetroviridae InfectionsRNA Virus InfectionsSexually Transmitted DiseasesSlow Virus DiseasesVirus DiseasesSexually Transmitted Diseases, ViralHIV InfectionsLentivirus Infections

Criteria

Inclusion Criteria * It must be possible to culture HIV from peripheral blood lymphocytes on 2 consecutive screenings within 2 months of starting treatment. Concurrent Medication: Allowed: * Systemic medications not listed in the Exclusion Concurrent Medications field considered necessary for the patient's medical management and which would not interfere with the study may be used, but such use must be documented. Exclusion Criteria Concurrent Medication: Excluded: * Systemic steroids. * Cytotoxic immunosuppressive medications. * Any systemic experimental anti-HIV drug such as dideoxycytidine (ddC), foscarnet, ribavirin, isoprinosine, or zidovudine (AZT). * Any other medication felt to be immunomodulatory or felt to exhibit significant hepatotoxicity or hematologic or renal toxicity by study investigators. Prior Medication: Excluded within 6 weeks of study entry: * Systemic steroids. * Cytotoxic immunosuppressive medications. * Any systemic experimental anti-HIV drug such as dideoxycytidine (ddC), foscarnet, ribavirin, isoprinosine, or zidovudine (AZT). * Any other medication felt to be immunomodulatory or felt to exhibit significant hepatotoxicity or hematologic or renal toxicity by study investigators. Current active infections, known cardiac disease, or prior history of one of the following: * Gout, uric acid urolithiasis, uric acid nephrolithiasis, or renal dysfunction. * Neoplasms: * Other than locally treated basal or squamous carcinoma. * Cardiovascular: * Myocardial infarction, cardiac arrhythmia, cardiomyopathy, or congestive heart failure. Past or current history of CDC-defined AIDS including HIV encephalopathy and HIV wasting syndrome. Constitutional symptoms (CDC Group IV-A), neurologic symptoms (CDC Group IV-B), or any prior or current non-AIDS defining secondary infectious disease (CDC Group IV-C2). Grade 1 impairment on 2 or more items in the ACTG Micro Neuro-AIDS Assessment. Active drug or alcohol abuse.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

George Washington Univ Med Ctr

Washington D.C., United StatesOpen George Washington Univ Med Ctr in Google Maps
CompletedOne Study Center