Clinical trials: Ritonavir
HIV/AIDS, HIV Infections
Study in Healthy Males to Measure Darunavir and Etravirine in Blood, Seminal Fluid, and Rectal Tissue
This study is being conducted to look at how the body handles the drugs darunavir and etravirine. It will measure the amount of darunavir and etravirine in blood, semen, and in the rectum of men.
- Trial name
- DESeRT (NCT00855088)
- Testing
- darunavir, Ritonavir, Etravirine
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
HIV Infections
The Effects of Staggered Dosing on Interactions Between Paired Combinations of Nelfinavir, Ritonavir, and Saquinavir
The purpose of this study is to see if staggering doses of nelfinavir, ritonavir, and saquinavir has any effect on the interactions between these drugs.
- Trial name
- NCT00000898
- Testing
- Ritonavir, Nelfinavir mesylate, Saquinavir
- Where
- 4 sites in United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Healthy Volunteer
A Study of Danoprevir in Combination With Low-Dose Ritonavir in Healthy Subjects
This single-dose, randomized, double-blind, double-dummy, placebo-controlled, positive-controlled four-way crossover study will evaluate the effect of a single dose of danoprevir with low-dose ritonavir on the QC/QTc interval in…
- Trial name
- NCT01398293
- Testing
- danoprevir, moxifloxacin, ritonavir
- Where
- France
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Hoffmann-La Roche
HIV, HIV Infections
Atazanavir/Ritonavir and Darunavir/Ritonavir PK Tail Study
The purpose of the study is to look at the levels of three HIV medications darunavir, ritonavir and atazanavir in the blood after the drug intake has been stopped in order to understand how long these drugs persist in blood for.
- Trial name
- NCT01073761
- Testing
- darunavir/ritonavir then atazanavir/ritonavir
- Where
- United Kingdom
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- St Stephens Aids Trust
Healthy Volunteer
Pharmacokinetics and Safety of the Co-administration of ABT-450/Ritonavir/ABT-267 (ABT-450/r/ABT-267) and ABT-333 in Healthy Chinese Subjects
The purpose of this study is to assess the pharmacokinetics and safety of multiple oral doses of ABT-450/ritonavir/ABT-267 and ABT-333 when co-administered under non-fasting conditions in healthy Chinese adult participants.
- Trial name
- NCT02534870
- Testing
- ABT-450/r/ABT-267, ABT-333
- Where
- China
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- AbbVie
HIV Infections, Malaria
Pharmacokinetic Interaction Between the Antimalarial Combination Artemether/Lumefantrine and Combination Antiretroviral Therapy Including Lopinavir/Ritonavir in HIV-infected Adults
Despite the clinical significance of potential interactions between antimalarials and antiretrovirals, no drug interaction studies have been published and there is an urgent need to address this gap in current knowledge.
- Trial name
- SEACAT 2_4_2 (NCT00869700)
- Testing
- Artemether/Lumefantrine
- Where
- South Africa
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Cape Town
HIV Infections, Malaria
Pharmacokinetic Interactions Between Antiretroviral Agents and Antimalarial Drug Combinations
The purpose of the study is to determine in healthy volunteers whether certain anti-HIV medications (lopinavir/ritonavir and efavirenz) affect the drug levels of certain anti-malarial medications (artesunate/ amodiaquine and…
- Trial name
- NCT00697892
- Testing
- lopinavir/ritonavir, efavirenz, artemether/lumefantrine
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Fran Aweeka
Hepatic Impairment
Study to Estimate the Effects of Hepatic Impairment on the Pharmacokinetics (PK) of PF-07321332
The study is to estimate the effect of hepatic impairment on the plasma PK of PF-07321332/ritonavir. Findings from this study will be used to develop dosing recommendations so that the dose and/or dosing interval may be adjusted…
- Trial name
- NCT05005312
- Testing
- PF-07321332, Ritonavir
- Where
- 2 sites in United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Pfizer
HIV Infections
Preventing Sexual Transmission of HIV With Anti-HIV Drugs
This study will determine whether anti-HIV drugs can prevent the sexual transmission of HIV among couples in which one partner is HIV infected and the other is not.
- Trial name
- NCT00074581
- Testing
- Atazanavir, Didanosine, Efavirenz
- Where
- 17 sites in United States, Botswana and 7 more
- Volunteers
- 3,526 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Human Immunodeficiency Virus Infection
Mechanisms of Immune Reconstitution & Reduced Immune Activation Following Darunavir-based ART
Potent HIV suppression with Darunavir-based antiretroviral therapy (ART) will lead to repopulation of gastrointestinal-associated lymphoid tissue (GALT) cluster of differentiation (CD)4+ T-cell populations, normalization of…
- Trial name
- NCT01869634
- Testing
- darunavir with ritonavir and fixed-dose viread+emtricitabine daily
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
HCV Infection
Safety, Tolerability and PK Study of Single Doses of ABT-450 With and Without Ritonavir to Treat Hepatitis C Virus (HCV) Genotype 1
The purpose of this study is to determine the pharmacokinetic and safety profiles of an experimental HCV protease inhibitor with and without ritonavir in healthy volunteers.
- Trial name
- NCT00850044
- Testing
- ABT-450, ritonavir
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- AbbVie
COVID-19 Respiratory Infection
Food Effects of GST-HG171 Tablets Combined With Ritonavir in Healthy Chinese Participants
A single-center, randomized, open, single-dose, two-cycle, two-sequence, cross-over study was conducted to evaluate the effect of food on the pharmacokinetic characteristics of GST-HG171 in combination with Ritonavir.
- Trial name
- NCT06084507
- Testing
- GST-HG171/ritonavir, ritonavir
- Where
- China
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Fujian Akeylink Biotechnology Co., Ltd.
HIV Infections
Pharmacokinetic Study of Antiretroviral Drugs and Related Drugs During and After Pregnancy
IMPAACT P1026s is a Phase IV prospective clinical study to evaluate the pharmacokinetics (PKs) of antiretroviral (ARV) and tuberculosis (TB) medications in pregnant women and their infants.
- Trial name
- NCT00042289
- Testing
- atazanavir/cobicistat, darunavir/ritonavir dosage #1, darunavir/ritonavir dosage #2
- Where
- 62 sites in United States, Argentina and 6 more
- Volunteers
- 1,578 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Healthy
Dose Escalation Study of Pharmacokinetics, Safety and Tolerability After Single Dose Administration of BILR 355 (SDS) Plus Low-dose Ritonavir in Healthy Volunteers
The primary objective was to explore the relative bioavailability of increasing doses of BILR 355 BS, as a sodium dodecyl sulfate-containing solid formulation (SDS), in combination with ritonavir 100 mg and to explore the…
- Trial name
- NCT02253927
- Testing
- BILR 355 - D1, BILR 355 - D2, BILR 355 - D3
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Boehringer Ingelheim
Human Immunodeficiency Virus Type 1 (HIV-1), HIV Infections
Drug Interactions Between Voriconazole and Atazanavir Coadministered as Atazanavir/Ritonavir in Healthy Participants
This study assesses the effects of voriconazole, 200 mg, administered twice daily (BID), on the steady-state pharmacokinetics of atazanavir administered as atazanavir/ritonavir, 300/100 mg once daily (QD), in healthy participants…
- Trial name
- NCT00833482
- Testing
- Voriconazole, Atazanavir, Ritonavir
- Where
- 2 sites in United States, Netherlands
- Volunteers
- 185 people, healthy volunteers welcome
- Sponsor
- Bristol-Myers Squibb
Healthy
Electrophysiological Effects of Tipranavir Co-administered With Ritonavir on the QT Interval in Healthy Female and Male Subjects
To demonstrate that tipranavir (TPV) co-administered with ritonavir (RTV) does not affect the QT interval more than placebo co-administered with ritonavir
- Trial name
- NCT02248883
- Testing
- TPV low, Moxifloxacin, TPV high
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Boehringer Ingelheim
Pharmacokinetics
Drug-Drug Interaction Between Colchicine and Ritonavir
Ritonavir is a potent inhibitor of CYP3A4, one of the enzymes responsible for the metabolism of colchicine. This study will evaluate the effect of multiple doses of ritonavir on the pharmacokinetic profile of a single 0.6 mg dose…
- Trial name
- NCT00983515
- Testing
- Colchicine, Ritonavir
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Mutual Pharmaceutical Company, Inc.
Healthy
Investigation of Ritonavir Effects on Afatinib Exposure in Healthy Subjects
To study the effect of the P-glycoprotein inhibitor ritonavir on the pharmacokinetics (PK) of afatinib depending on the timepoint of ritonavir administration
- Trial name
- NCT01426958
- Testing
- afatinib, ritonavir + afatinib
- Where
- Germany
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Boehringer Ingelheim
Healthy Subjects, Infection, Human Immunodeficiency Virus
GSK1349572 Drug Interaction Study With Protease Inhibitors
A study in healthy volunteers to determine whether there is a drug interaction between GSK1349572 and the HIV protease inhibitors lopinavir/ritonavir and darunavir/ritonavir
- Trial name
- NCT00774735
- Testing
- GSK1349572
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Hepatitis C
Drug Interaction Study Between Eltrombopag and Lopinavir/Ritonavir in Healthy Adult Subjects.
This is a Phase I, open-label, single sequence, crossover study to be conducted in healthy adult subjects. There will be a screening visit, three treatment periods, and a follow-up visit.
- Trial name
- NCT00833378
- Testing
- Eltrombopag, Lopinavir/Ritonavir, Eltrombopag and Lopinavir/Ritonavir
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline