A Study of Two Forms of Pentamidine in HIV-Infected Children Who May Have Pneumocystis Carinii Pneumonia

A Phase I Study of the Safety, Tolerance, and Study of the Pharmacokinetics of Aerosolized Pentamidine and Parenteral Pentamidine in Children With HIV Infection and Suspected Pneumocystis Carinii Pneumonia

To evaluate the delivery of a single dose of aerosolized pentamidine to children; to evaluate the tolerance of pentamidine administration by mask; to compare intravenous pentamidine first dose pharmacokinetics (blood levels) in children with information previously collected on adults; and to compare plasma pentamidine levels in children after an aerosolized treatment with levels previously collected on adults.

Pneumocystis carinii pneumonia (PCP) is the most common serious infection in children with AIDS and is associated with a high death rate. Current approved treatment includes intravenous trimethoprim - sulfamethoxazole (TMP / SMX) and intravenous pentamidine, which are both effective in treatment of the first episode of PCP pneumonia. However, both therapies have a 50 percent or greater incidence of adverse reactions. Because of serious toxicities, drug treatment has had to be discontinued. Animal studies show that aerosolized pentamidine (pentamidine given through inhalation) is as effective as intravenous pentamidine. It is hoped that the aerosolized route will be less toxic than intravenous pentamidine. The study is the first step in evaluating the delivery of aerosolized pentamidine to children.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

Pneumocystis carinii pneumonia (PCP) is the most common serious infection in children with AIDS and is associated with a high death rate. Current approved treatment includes intravenous trimethoprim - sulfamethoxazole (TMP / SMX) and intravenous pentamidine, which are both effective in treatment of the first episode of PCP pneumonia. However, both therapies have a 50 percent or greater incidence of adverse reactions. Because of serious toxicities, drug treatment has had to be discontinued. Animal studies show that aerosolized pentamidine (pentamidine given through inhalation) is as effective as intravenous pentamidine. It is hoped that the aerosolized route will be less toxic than intravenous pentamidine. The study is the first step in evaluating the delivery of aerosolized pentamidine to children.

Sixteen patients are assigned into one of the following groups. Group 1 (four patients) receives intravenous pentamidine as a one-time dose, infused over 2 hours. Group 2a (six patients) receives aerosolized pentamidine via face mask. Group 2b (six patients) receives aerosolized pentamidine 2 times. Group 2b will be studied only if initial dose is well tolerated. Small amounts (1 - 2 cubic centimeters) of blood is taken from all groups at 40 minutes, and 2, 3, 7, 14, and 24 hours from the beginning of pentamidine treatment and at the same time as the lung biopsy or bronchial alveolar lavage. Patients are given routine TMP / SMX (or whatever medications are considered appropriate by the patient's primary physician for medical management) dosing 1 - 2 hours after pentamidine is given. Bronchial alveolar lavage fluid or lung tissue from biopsy will be obtained between 2 - 48 hours after initiation of pentamidine treatment (optionally 10 - 24 hours post dose).

Study Type

Interventional

Enrollment

16

Phase

  • Phase 1

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-Los Angeles/Brazil AIDS Consortium (LABAC) CRS
      • Los Angeles, California, United States, 90027
        • Childrens Hosp. LA - Dept. of Ped., Div. of Clinical Immunology & Allergy
      • Oakland, California, United States, 94609
        • Children's Hosp. & Research Ctr. Oakland, Ped. Clinical Research Ctr. & Research Lab.
    • Texas
      • Houston, Texas, United States, 77030
        • Texas Children's Hosp. 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

2 months to 13 years (CHILD)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Routine trimethoprim / sulfamethoxazole (TMP / SMX) (or whatever medications are considered appropriate by the patient's primary physician for medical management) 1 - 2 hours after pentamidine is given.

Patients must have:

  • HIV infection with suspected Pneumocystis carinii pneumonia (PCP).
  • Parent(s) or legal guardian must sign an informed consent.

Exclusion Criteria

Co-existing Condition:

Patients with the following conditions or symptoms are excluded:

  • Known history of reactive airway disease or another chronic lung disease.
  • Known previous adverse reaction to pentamidine.
  • Thrombocytopenia.

Patients with the following are excluded:

  • History of reactive airway disease or another chronic lung disease.
  • Known previous adverse reaction to pentamidine.

Unable to cooperate with administration of aerosol via face mask.

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: NONE

Collaborators and Investigators

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

Investigators

  • Study Chair: ER Stiehm
  • Study Chair: YJ Bryson

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

  • Conte JE Jr; Wara D. Pharmacokinetics of aerosolized pentamidine in children. Int Conf AIDS. 1993 Jun 6-11;9(1):381 (abstract no PO-B10-1477)
  • Kreuz W, Gunguor T, Funk M, Ehrenforth S, Linde R, Lotz C, Kornhuber B. First experience with Pneumocystis carinii pneumonia-prophylaxis by inhaled pentamidine in HIV-infected children. Int Conf AIDS. 1991 Jun 16-21;7(2):242 (abstract no WB2243)

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)

September 1, 1996

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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