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HIV InfectionsPhase 1NCT00357188

Dose Finding Confirmation of Atazanavir With Ritonavir and Efavirenz (ATV/RTV + EFV) in Healthy Subjects

A Phase 1 study testing Atazanavir Sulphate + Ritonavir and Atazanavir Sulphate + Ritonavir + Efavirenz in people with HIV Infections and Protease Inhibitor, run by Bristol-Myers Squibb at 1 site 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

The purpose of this study is to assess the exposure of Atazanavir 400 mg with Ritonavir 100 mg and with Efavirenz 600 mg compared to Atazanavir 300 mg with 100 mg without Efavirenz in Healthy Subjects Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections, Protease Inhibitor
What is being tested?
Atazanavir Sulphate + Ritonavir and Atazanavir Sulphate + Ritonavir + Efavirenz
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
Jul 2006to Sep 2006
Phase
Phase 1
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 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • BMI 18-30
  • Men and women who are not of childbearing potential, ages 18-50 years, inclusive

Who cannot join

  • History of seizures or other central nervous system disorders (including migraine headaches)
  • history of diagnosed mental illness or suicidal tendencies
  • positive screening for Hep B surface antigen
  • Hep C antibody
  • HIV-1, -2

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Local Institution

    Hamilton, New Jersey

Other trials in United States

About this study

Official title: Open-Label, Multiple Dose Study to Determine the Relative Bioavailability of Atazanavir (ATV) 400 mg Administered With Ritonavir (RTV) and Efavirenz (EFV) Compared to Atazanavir 300 mg Administered With Ritonavir Alone in Healthy Subjects

The purpose of this study is to assess the exposure of Atazanavir 400 mg with Ritonavir 100 mg and with Efavirenz 600 mg compared to Atazanavir 300 mg with 100 mg without Efavirenz in Healthy Subjects

Being tested
Atazanavir Sulphate + Ritonavir, Atazanavir Sulphate + Ritonavir + Efavirenz
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 Sulphate + RitonavirDrug

    Also called Reyataz

    Capsules, Oral, ATV 300 mg + RTV 100 mg, once daily, 10 days.

  • Atazanavir Sulphate + Ritonavir + EfavirenzDrug

    Also called Reyataz, Sustiva

    Capsules/Tablets, oral, ATV 400 mg + RTV 100 mg + EFV 600 mg, once daily, 14 days.

Study groups in NCT00357188
Study groupRoleWhat they receive
AActive comparatorNot described
Receives: Drug: Atazanavir Sulphate + Ritonavir
BActive comparatorNot described
Receives: Drug: Atazanavir Sulphate + Ritonavir + Efavirenz

What is being measured

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

  1. To assess the comparability of atazanavir exposure when dosed in the evening as atazanavir 400 mg with ritonavir 100 mg and with efavirenz 600 mg relative to ATV 300 mg and RTV 100 mg alone in healthy subjects

Secondary outcomes (3)
  1. To assess the PK of EFV when coadministered with ATV 400 mg and RTV 100 mg in the evening

  2. To assess the PK of RTV when dosed as ATV 400 mg with RTV 100 mg and with EFV 600 mg in the evening relative to ATV 300 mg with RTV 100 mg alone

  3. To assess the safety and tolerability of ATV and RTV alone and when coadministered with EFV in the evening in healthy subjects

Timeline

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

  1. First posted27 Jul 2006 (estimated)
  2. Study startJul 2006
  3. Primary completionSep 2006
  4. Study completionSep 2006

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 1
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
22 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00357188
Sponsor's protocol ID
AI424-283
Status last verified
Jun 2008
First submitted
26 Jul 2006
Last updated
8 Apr 2011
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Atazanavir Sulphate + Ritonavir and Atazanavir Sulphate + Ritonavir + Efavirenz in people with HIV Infections and Protease Inhibitor, run by Bristol-Myers Squibb at 1 site 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 2 inclusion and 5 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 8 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

To assess the comparability of atazanavir exposure when dosed in the evening as atazanavir 400 mg with ritonavir 100 mg and with efavirenz 600 mg relative to ATV 300 mg and RTV 100 mg alone in healthy subjects. 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 8 Apr 2011; AzTrials last refreshed its copy on 8 Nov 2026.

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