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Mycobacterium Avium-intracellulare InfectionNCT00001023

The Safety and Effectiveness of Rifabutin, Combined With Clarithromycin or Azithromycin, in HIV-Infected Patients

A study testing Clarithromycin, Azithromycin and Rifabutin in people with Mycobacterium Avium-intracellulare Infection and HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 11 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

PER 03/10/94 AMENDMENT: PART B. To determine whether there is an effect on plasma drug levels of azithromycin and rifabutin as measured by changes in the plasma concentration-time curve (AUC) when these drugs are taken concomitantly. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Clarithromycin, Azithromycin and Rifabutin
How many people
91 participants
Where
11 sitesUnited States
Study dates
Start not givento Jul 1998
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Concurrent Medication:
  • Allowed:
  • Primary or secondary PCP prophylaxis with TMP/SMX, dapsone, or aerosolized pentamidine.
  • Any approved therapy for antiretroviral treatment, or antiretroviral therapy available through FDA-sanctioned treatment IND or treatment protocol.
  • Patients must have:
  • AMENDED (PART B):
Show all 11Show fewer
  • Either HIV infection OR no HIV infection.
  • CD4 count unspecified.
  • ORIGINAL:
  • Documented HIV infection.
  • CD4 count < 200 cells/mm3 within 90 days prior to study entry.

Who cannot join

  • Co-existing Condition:
  • Patients with the following symptoms and conditions are excluded:
  • Known Mycobacterium avium-intracellulare (MAI) bacteremia or presence of a clinical syndrome compatible with MAI (i.e., fevers, weight loss, elevated LDH and alkaline phosphatase).
  • Fever = or > 38.5 deg C (100.4 deg F) within 7 days prior to study entry.
  • Concurrent Medication:
  • Excluded:
Show all 23Show fewer
  • Acute or chronic use of phenobarbital, carbamazepine, rifampin, dilantin, fluconazole, itraconazole, ketoconazole, ciprofloxacin, beta-blockers, or clarithromycin.
  • Oral contraceptives.
  • Acute therapy for an AIDS-related opportunistic infection or malignancy, or other acute medical illness, or infection.
  • Maintenance therapy for CMV, cryptococcal meningitis, or toxoplasmosis.
  • Cytotoxic chemotherapy.
  • Patients with the following prior conditions are excluded:
  • History of intolerance or hypersensitivity to study drugs, other macrolide antibiotics, or rifampin.
  • Three or more loose bowel movements per day within 3 months prior to study entry.
  • Unintentional weight loss >= 5 percent of body weight within 3 months prior to study entry.
  • Prior Medication:
  • Excluded:
  • Rifabutin within 30 days prior to study entry.
  • Clarithromycin or azithromycin within 14 days prior to study entry.
  • Acute therapy for an AIDS-related opportunistic infection or malignancy, or other acute medical illness, or infection within 28 days prior to study entry.
  • Prior Treatment:
  • Excluded:
  • Blood transfusions within 1 month prior to study entry.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Univ of Maryland at Baltimore / Veterans Adm

    Baltimore, Maryland, 21201

  • Univ of North Carolina School of Medicine

    Chapel Hill, North Carolina, 275997215

  • Denver Public Health Dept

    Denver, Colorado, 802044507

  • Tulane Univ Med School

    New Orleans, Louisiana, 701122699

  • Palo Alto Veterans Affairs Health Care System

    Palo Alto, California, 94304

  • Univ of Rhode Island / Roger Williams Med Ctr

    Providence, Rhode Island, 02908

  • Med College of Virginia / School of Pharmacy

    Richmond, Virginia, 232980533

  • Davies Med Ctr

    San Francisco, California, 94114

  • Washington Univ School of Medicine

    St Louis, Missouri, 63108

  • Univ of Arizona / Health Science Ctr

    Tucson, Arizona, 85724

  • Georgetown Univ Med Ctr

    Washington D.C., District of Columbia, 20007

Other trials in United States

About this study

Official title: Evaluation of the Safety, Tolerance and Pharmacokinetics of Rifabutin/Clarithromycin Combination and Rifabutin/Azithromycin Combination in HIV-Infected Patients

PER 03/10/94 AMENDMENT: PART B. To determine whether there is an effect on plasma drug levels of azithromycin and rifabutin as measured by changes in the plasma concentration-time curve (AUC) when these drugs are taken concomitantly.

ORIGINAL PRIMARY: To gain preliminary information about the safety and tolerance of clarithromycin and azithromycin in combination with rifabutin (three potential agents against Mycobacterium avium-intracellulare) in HIV-infected patients with CD4 counts < 200 cells/mm3.

Read more

ORIGINAL SECONDARY: To determine whether there is an effect on the pharmacokinetics of the macrolide antibiotics or rifabutin when these drugs are taken concomitantly. To monitor the effect of rifabutin therapy on dapsone serum levels in patients taking dapsone for PCP prophylaxis. To monitor the effect of macrolide/rifabutin combination therapies on AZT or ddI serum levels.

Two new macrolide antibiotics, clarithromycin and azithromycin, and rifabutin (a rifamycin derivative) have all demonstrated in vitro and in vivo activity against Mycobacterium avium-intracellulare, a common systemic bacterial infection complicating AIDS. Further information is needed, however, regarding the clinical and pharmacokinetic interaction of these drugs used in combination.

Read the detailed description

Two new macrolide antibiotics, clarithromycin and azithromycin, and rifabutin (a rifamycin derivative) have all demonstrated in vitro and in vivo activity against Mycobacterium avium-intracellulare, a common systemic bacterial infection complicating AIDS. Further information is needed, however, regarding the clinical and pharmacokinetic interaction of these drugs used in combination.

AMENDED 03/10/94 (Part B): Approximately 38 HIV-infected or uninfected subjects are randomized to receive azithromycin or rifabutin (Groups 3 and 4) daily for 14 days, followed by a combination regimen of both drugs for 4 additional weeks. Patients are followed weekly. Pharmacokinetic sampling will be performed on days 14, 15, and 42-45.

ORIGINAL: Sixty-eight patients are randomly assigned to one of four groups (17 patients per group). They receive either clarithromycin or azithromycin in combination with rifabutin on one of two different dosing schedules. Patients receive medication for 6 weeks and undergo follow-up weekly during drug administration and at week 8.

Being tested
Clarithromycin, Azithromycin, Rifabutin
Keywords
Rifabutin, Mycobacterium avium-intracellulare Infection, Drug Interactions, Azithromycin, Clarithromycin
Medical subject headings
Mycobacterium avium-intracellulare Infection, HIV Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Aug 2001 (estimated)
  2. Study completionJul 1998

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Enrolment
91 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00001023
Sponsor's protocol ID
DATRI 001
Other IDs
11732
Status last verified
Oct 2012
First submitted
2 Nov 1999
Last updated
31 Oct 2012
Results posted
No

Publications

  • Hafner R, Bethel J, Standiford HC, Follansbee S, Cohn DL, Polk RE, Mole L, Raasch R, Kumar P, Mushatt D, Drusano G; DATRI 001B Study Group. Tolerance and pharmacokinetic interactions of rifabutin and azithromycin. Antimicrob Agents Chemother. 2001 May;45(5):1572-7. doi: 10.1128/AAC.45.5.1572-1577.2001.

    PubMed 11302832

Questions about this trial

What is this clinical trial studying?

A study testing Clarithromycin, Azithromycin and Rifabutin in people with Mycobacterium Avium-intracellulare Infection and HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 11 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Oct 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00001023, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Oct 2012.

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