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Completed Phase 1 Interventional Accepts healthy volunteers

Interactions Between HIV Protease Inhibitors and Calcium Channel Blockers

ClinicalTrials.gov ID: NCT00039975

Public ClinicalTrials.gov record NCT00039975. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 27, 2026, 7:41 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Evaluation of Potential Pharmacokinetic Interactions Between HIV Protease Inhibitors and Calcium Channel Blockers

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Diltiazem CD and amlodipine are drugs used to treat heart disease and high blood pressure. The purpose of this study is to find out if these drugs interact with the anti-HIV drugs indinavir and ritonavir. The study will also look at the safety of taking the study drugs together. Heart disease and high blood pressure are major health concerns for people with HIV. Standard treatment for these illnesses often includes calcium channel blockers (CCBs). There is a potential for significant drug interactions between CCBs and HIV protease inhibitors (PIs) that may influence the dosing, monitoring, and choosing of CCBs and PIs when used in people infected with HIV. This study will examine the drug interactions between 2 commonly used CCBs and the PI combination indinavir and ritonavir (IDV/RTV). This information should help doctors choose the appropriate treatment for high blood pressure or heart disease in people taking PIs.

Study identification

NCT ID
NCT00039975
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Enrollment
32 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 60 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Not listed
Primary completion
Not listed
Completion
Apr 2004 (Actual)
Last update posted
Nov 1, 2021

Ends 2004

United States locations

U.S. sites
9
U.S. states
7
U.S. cities
9
Facility City State ZIP Site status
Univ of California San Francisco San Francisco California 94110 —
Stanford Univ Med Ctr Stanford California 943055107 —
Univ of Colorado Health Sciences Ctr Denver Colorado 80262 —
Johns Hopkins Hosp Baltimore Maryland 21287 —
Univ of Minnesota Minneapolis Minnesota 55455 —
Washington Univ (St. Louis) St Louis Missouri 63108 —
Cornell Univ Med Ctr New York New York 10021 —
Univ of Rochester Medical Center Rochester New York 14642 —
Univ of Cincinnati Cincinnati Ohio 452670405 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00039975, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 1, 2021 · Synced Oct 27, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00039975 live on ClinicalTrials.gov.

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