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HIV InfectionsPhase 4NCT00384904

Drug Interaction Study of Famotidine and Atazanavir With Ritonavir in HIV-Infected Patients

A Phase 4 study testing Atazanavir/Ritonavir, Atazanavir/Ritonavir + Famotidine and Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine in people with HIV Infections, run by Bristol-Myers Squibb at 4 sites in 2 countries.

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

The purpose of this clinical research study is to assess the effect of Famotidine given twice daily on Atazanavir administered with Ritonavir in HIV-Infected subjects. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
HIV Infections
What is being tested?
Atazanavir/Ritonavir, Atazanavir/Ritonavir + Famotidine and Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
4 sitesin 2 countries
Study dates
Dec 2006to Dec 2007
Phase
Phase 4
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • HIV-infected male and female subjects between the ages of 18 to 65 years old with a BMI 18 to 35 kg/m²
  • Prior to enrollment subjects must be currently receiving Atazanavir/Ritonavir plus at least 2 NRTIs, must have plasma HIV RNA <400 copies/mL and have CD4 count >200 cells/mm³

Who cannot join

None listed.

Trial locations and contacts

4 sites in 2 countries.

4 sites in 2 countries

United States3 sites
  • Unc Center For Aids Research

    Chapel Hill, North Carolina, 27599

  • Local Institution

    Philadelphia, Pennsylvania, 19104

  • Garden State Infectious Disease Associates, Pa

    Voorhees Township, New Jersey, 08043

Other trials in United States

United Kingdom1 site
  • Local Institution

    London, Greater London, SW10 9TH

Other trials in United Kingdom

About this study

Official title: Open-Label, Multiple-Dose, Drug Interaction Study to Assess the Effect of Famotidine With or Without Tenofovir on the Pharmacokinetics of Atazanavir When Given With Ritonavir in HIV-Infected Subjects

The purpose of this clinical research study is to assess the effect of Famotidine given twice daily on Atazanavir administered with Ritonavir in HIV-Infected subjects.

Conditions
HIV Infections
Being tested
Atazanavir/Ritonavir, Atazanavir/Ritonavir + Famotidine, Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine
Medical subject headings
HIV Infections

What participants receive

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

  • Atazanavir/RitonavirDrug

    Also called Reyataz

    Capsules/capsules, Oral, 300/100 mg, Once daily, 10 days.

  • Atazanavir/Ritonavir + FamotidineDrug

    Also called Reyataz

    Capsules/capsules + Tablets, Oral, 300/100 mg + 40 mg, Once daily + Twice daily, 7 days.

  • Atazanavir/Ritonavir + FamotidineDrug

    Also called Reyataz

    Capsules/capsules + Tablets, Oral, 300/100 mg + 20 mg, Once daily + Twice daily, 7 days.

  • Atazanavir/RitonavirDrug

    Also called Reyataz

    Capsules/capsules + Tablets, Oral, 300/100 mg, Once daily, 10 days.

  • Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + FamotidineDrug

    Also called Reyataz

    Capsules/capsules + Tablets + Tablets, Oral, 300/100 mg + 300 mg + 40 mg, Once daily + Twice daily, 7 days.

  • Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + FamotidineDrug

    Also called Reyataz

    Capsules/capsules + Tablets + Tablets, Oral, 300/100 mg + 300 mg + 20 mg, Once daily + Twice daily, 7 days.

Study groups in NCT00384904
Study groupRoleWhat they receive
A1No interventionNot described
Receives: Drug: Atazanavir/Ritonavir
A2ExperimentalNot described
Receives: Drug: Atazanavir/Ritonavir + Famotidine
A3ExperimentalNot described
Receives: Drug: Atazanavir/Ritonavir + Famotidine
B1No interventionNot described
Receives: Drug: Atazanavir/Ritonavir
B2ExperimentalNot described
Receives: Drug: Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine
B3ExperimentalNot described
Receives: Drug: Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Atazanavir plasma drug concentrations

    Measured: on days 10, 11, 17, 18, 24 and 25

Secondary outcomes (6)
  1. Ritonavir plasma drug concentrations

    Measured: on days 10, 11, 17, 18, 24 and 25

  2. Safety measures: Physical examinations

  3. ECGs

    Measured: entry and discharge

  4. laboratory tests including, liver and renal function

    Measured: entry, discharge and days 11, 18

  5. CD4 count

    Measured: discharge

  6. HIV viral load

    Measured: entry and discharge

Timeline

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

  1. First posted6 Oct 2006 (estimated)
  2. Study startDec 2006
  3. Primary completionDec 2007
  4. Study completionDec 2007

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 4
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00384904
Sponsor's protocol ID
AI424-328
Status last verified
Nov 2008
First submitted
3 Oct 2006
Last updated
5 Feb 2010
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Atazanavir/Ritonavir, Atazanavir/Ritonavir + Famotidine and Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine in people with HIV Infections, run by Bristol-Myers Squibb at 4 sites in 2 countries.

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 2 inclusion and 0 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 5 Feb 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States, United Kingdom. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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.

What does the primary outcome measure?

Atazanavir plasma drug concentrations (time frame: on days 10, 11, 17, 18, 24 and 25). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 5 Feb 2010.

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