The Safety and Effectiveness of Interferon Alfa-2B Plus Didanosine in Patients With Kaposi's Sarcoma

A Randomized Phase II Trial to Determine the Safety, Tolerance, and Efficacy of Two Doses of Interferon Alfa-2b Combined With Didanosine in Patients With Kaposi's Sarcoma

Primary: To evaluate the safety, toxicity, and antitumor activity of two doses of interferon alfa-2b (IFN-alpha) combined with a fixed dose of didanosine (ddI) in patients with Kaposi's sarcoma associated with HIV infection.

Secondary: To evaluate the effects of combined IFN-alpha and ddI treatment on HIV expression and markers of immune function.

Previous studies have shown that IFN-alpha can induce regression of Kaposi's sarcoma and suppression of HIV in some patients. Although various trials using IFN-alpha in combination with the nucleoside analogue zidovudine have demonstrated a high degree of antitumor activity and evidence of HIV suppression, the overlapping toxicity (primarily neutropenia) of these two agents has proven dose-limiting. The toxicity profile of ddI suggests that this drug may be better tolerated than zidovudine when combined with IFN-alpha.

Study Overview

Status

Completed

Detailed Description

Previous studies have shown that IFN-alpha can induce regression of Kaposi's sarcoma and suppression of HIV in some patients. Although various trials using IFN-alpha in combination with the nucleoside analogue zidovudine have demonstrated a high degree of antitumor activity and evidence of HIV suppression, the overlapping toxicity (primarily neutropenia) of these two agents has proven dose-limiting. The toxicity profile of ddI suggests that this drug may be better tolerated than zidovudine when combined with IFN-alpha.

Up to 90 patients are randomized to receive either low or high doses of IFN-alpha (1 or 10 million Units/day) in combination with a fixed dose of ddI. Fourteen patients are initially entered at each dose level. If no objective antitumor responses are observed among the first 14 patients at a given dose, no further patients are entered on that treatment arm. If one or more antitumor responses are seen at a given dose, up to 45 patients may be entered on that treatment arm. Patients must complete at least 4 weeks of study therapy to be considered evaluable for tumor response. Treatment is continued until tumor progression or unacceptable toxicity occurs. PER AMENDMENT 9/19/96: NOTE - After 16 weeks of treatment subjects may receive any FDA approved antiretroviral drug regimen in addition to or in place of ddI.

Study Type

Interventional

Enrollment

90

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

      • San Juan, Puerto Rico, 00936
        • Puerto Rico-AIDS CRS
    • California
      • Palo Alto, California, United States, 94115
        • Stanford CRS
    • Colorado
      • Aurora, Colorado, United States, 80262
        • University of Colorado Hospital CRS
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University CRS
      • Chicago, Illinois, United States, 60612
        • Rush Univ. Med. Ctr. ACTG CRS
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana Univ. School of Medicine, Infectious Disease Research Clinic
    • Massachusetts
      • Boston, Massachusetts, United States, 02118
        • Bmc Actg Crs
    • Missouri
      • Saint Louis, Missouri, United States
        • Washington U CRS
      • Saint Louis, Missouri, United States, 63112
        • St. Louis ConnectCare, Infectious Diseases Clinic
    • New York
      • Buffalo, New York, United States, 14215
        • SUNY - Buffalo, Erie County Medical Ctr.
      • New York, New York, United States, 10021
        • Memorial Sloan-Kettering Cancer Ctr.
    • Ohio
      • Cincinnati, Ohio, United States, 45267
        • Univ. of Cincinnati CRS
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Hosp. of the Univ. of Pennsylvania 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

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Chemoprophylaxis for candidiasis and herpes simplex.
  • Up to 14 days of metronidazole.
  • Recombinant erythropoietin.
  • G-CSF (for severe cases of neutropenia).
  • Isoniazid for treatment of TB if given in conjunction with pyridoxine.

Required in patients with CD4 counts < 200 cells/mm3:

  • Prophylaxis for PCP.

PER AMENDMENT 9/19/96:

  • After the first 16 weeks of combined IFN alpha-2b and ddI treatment subjects may at the discretion of the investigator receive any FDA approved antiretroviral drug regimen in addition to or in place of ddI.

Patients must have:

  • Positive antibody to HIV.
  • Biopsy-proven Kaposi's sarcoma (at least 5 measurable lesions, with at least 1 measurable cutaneous lesion) involving the skin, lymph nodes, oral cavity, or asymptomatic lesions of the GI tract not requiring systemic chemotherapy. Lung involvement with Kaposi's sarcoma excludes.
  • Consent of parent or guardian if less than 18 years of age.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms and conditions are excluded:

  • Concurrent opportunistic infection or B symptoms including unexplained fever, night sweats, weight loss > 10 percent, and diarrhea lasting more than 2 weeks.
  • Visceral (non-nodal) Kaposi's sarcoma requiring cytotoxic chemotherapy.
  • Severe (> 2+) tumor-associated edema.
  • Concurrent neoplasia other than basal cell carcinoma, or anogenital intraepithelial neoplasia.
  • Current clinical evidence of peripheral neuropathy (= or > grade 1), pancreatitis, intractable diarrhea, or active seizure disorder not well controlled by anti-seizure medications.
  • Significant symptomatic cardiac disease.
  • Medical contraindication.

Concurrent Medication:

Excluded:

  • Other investigational, antiviral, immunomodulating, or antitumor agents.
  • Drugs associated with peripheral neuropathy (other than ddI).

PER AMENDMENT 9/19/96:

  • Other antiretroviral agents may not be taken during the first 16 weeks of combined IFN alpha-2b and ddI treatment.

Concurrent Treatment:

Excluded:

  • Radiation therapy.

Patients with the following prior conditions are excluded:

  • Opportunistic infection or B symptoms including unexplained fever, night sweats, weight loss > 10 percent, and diarrhea lasting more than 2 weeks.
  • Prior grade 3 or 4 toxicity attributed to ddI therapy.
  • Prior history of peripheral neuropathy (= or > grade 1), pancreatitis, intractable diarrhea, or active seizure disorder not well controlled by anti-seizure medications.
  • History of myocardial infarction or ventricular arrhythmias.

Prior Medication:

Excluded:

  • Prior IFN-alpha.
  • Corticosteroids, biological response modifiers, cytotoxic chemotherapy, or known neurotoxic drugs (other than ddI or ddC) within 30 days prior to study entry.
  • Therapy with antiretroviral drugs (other than ddI) within 7 days prior to study entry.

Prior Treatment:

Excluded:

  • Radiation therapy within 30 days prior to study entry.

Risk Behavior:

  • Alcohol consumption is strongly discouraged.
  • Patients considered to be noncompliant should be excluded.

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.

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 Completion (Actual)

March 1, 2000

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 (Actual)

November 1, 2021

Last Update Submitted That Met QC Criteria

October 28, 2021

Last Verified

October 1, 2021

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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