A Phase II, Double-Blind Trial of Recombinant Human Nerve Growth Factor for Treatment of HIV-Associated Sensory Neuropathy

To assess the efficacy, safety, and tolerability of recombinant human nerve growth factor ( rhNGF ) in the treatment of HIV-associated sensory neuropathy. AS PER AMENDMENT 5/6/97: To compare the change in viral load between the double-blind phase baseline and week 4 in placebo and active rhNGF recipients. To ensure that rhNGF does not induce an increase in viral load compared with viral load changes seen with placebo.

Up to now, treatments for HIV-associated sensory neuropathy have been symptomatic, relying on pain-modifying agents or membrane-stabilizing drugs. Because nerve growth factor is important in the development and maintenance of sympathetic and sensory neurons and their outgrowths, it is proposed that recombinant human nerve growth factor may provide a specific restorative treatment for HIV-associated painful sensory neuropathy.

Study Overview

Detailed Description

Up to now, treatments for HIV-associated sensory neuropathy have been symptomatic, relying on pain-modifying agents or membrane-stabilizing drugs. Because nerve growth factor is important in the development and maintenance of sympathetic and sensory neurons and their outgrowths, it is proposed that recombinant human nerve growth factor may provide a specific restorative treatment for HIV-associated painful sensory neuropathy.

Patients are randomized to receive either rhNGF at one of two doses or placebo, administered subcutaneously twice weekly for 18 weeks. Patients are stratified into three groups within their regimens by use of didanosine, zalcitabine, or stavudine as follows: current use vs. discontinued between 8 and 26 weeks before randomization vs. never used or discontinued use at least 26 weeks before randomization. Patients will assess their pain daily using the Gracely Pain Scale. AS PER AMENDMENT 5/6/97: After completion of the double-blind phase (18 weeks on treatment followed by 4 weeks off treatment), patients may receive open-label, active drug treatment according to their previously assigned regimen for an additional 48 weeks.

Study Type

Interventional

Enrollment

270

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 Mateo, California, United States
        • San Mateo County AIDS Program
      • Stanford, California, United States, 943055107
        • Stanford CRS
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University CRS
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins Adult AIDS CRS
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess - East Campus A0102 CRS
    • Missouri
      • Saint Louis, Missouri, United States
        • Washington U CRS
    • New York
      • New York, New York, United States, 10016
        • NY Univ. HIV/AIDS CRS
      • New York, New York, United States
        • Cornell University A2201
      • Rochester, New York, United States, 14642
        • Univ. of Rochester ACTG CRS
    • North Carolina
      • Chapel Hill, North Carolina, United States, 275997215
        • Unc Aids Crs
    • Ohio
      • Cleveland, Ohio, United States, 44106
        • Case CRS
      • Columbus, Ohio, United States, 432101228
        • The Ohio State Univ. AIDS CRS
    • Washington
      • Seattle, Washington, United States, 981224304
        • 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 to 70 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Maintenance treatment of CMV retinitis, MAI bacteremia, or cryptococcal meningitis is permitted.
  • Local therapy for Kaposi's sarcoma.

Patients must have:

  • Evidence of HIV antibodies documented by a licensed ELISA and a second, FDA-approved, confirmatory test.
  • Diagnosis of HIV-associated, predominantly sensory neuropathy by a neurologist.
  • Willingness and ability to complete the pain and medication log and competence to assess pain level throughout the study.

Prior Medication:

Allowed:

  • History of stable-dose (defined as no more than 50% increase or decrease in dose) antiretroviral therapy for eight weeks before randomization, including the following:
  • didanosine, zalcitabine, stavudine, lamivudine, protease inhibitors, and antiretrovirals available through expanded access trials.
  • Chemotherapeutic drugs other than neurotoxic systemic chemotherapeutic agents within 30 days prior to randomization.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

  • Presence of acute, active, opportunistic infection, except oral thrush; oral, genital or rectal herpes; and MAI bacteremia within two weeks before randomization.
  • Evidence of another contributing cause for peripheral neuropathy, including:
  • diabetes mellitus, hereditary neuropathy, current vitamin B12 deficiency and no supplementation or supplementation <= 3 months, or treatment with any drug that might contribute to sensory neuropathy.
  • Major active psychiatric disorder (depression is allowed provided patient has received a stable antidepressant regimen for at least four weeks before randomization).
  • Current active malignancy. NOTE: Malignancies in remission that do not require further treatment or Kaposi's sarcoma requiring only local treatment are allowed.
  • Any conditions, including dementia and myelopathy, that would interfere with patient evaluation, accurate completion of the symptom scale, or compliance with subcutaneous injection.

Concurrent Medication:

Excluded:

  • Chemotherapeutic agents.
  • Systemic corticosteroids or immunomodulators.
  • Initiation of new antiretroviral to a stable regimen.

Prior Medication:

Excluded:

  • Neurotoxic systemic chemotherapy within the past 90 days.
  • Systemic corticosteroids or immunomodulators within the past 30 days.
  • Initiation of non-opioid prescription medication for pain during the 2 weeks preceding randomization (including tricyclic antidepressants, mexiletine, phenytoin, and carbamazepine).
  • Treatment for acute opportunistic infections within the past 14 days (maintenance therapy for CMV retinitis, MAI bacteremia, or cryptococcal meningitis is permitted).

Active drug or alcohol abuse that would affect study compliance.

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
  • Masking: DOUBLE

Collaborators and Investigators

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

Investigators

  • Study Chair: McArthur J
  • Study Chair: Schifitto G

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)

February 1, 1999

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 4, 2021

Last Update Submitted That Met QC Criteria

October 27, 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.

Clinical Trials on HIV Infections

Clinical Trials on Nerve Growth Factor, Recombinant Human

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