Cytochrome P-450 CYP3A Inhibitors clinical trials
A class of medicines: the studies that test any of its 11 members, each study once. Members are as MeSH files each medicine’s actions, and as the NCI Thesaurus classes newer ones.
Get an email when these change. Save the cytochrome p-450 cyp3a inhibitors studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.
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Example · made-up studies
Breast cancer · Recruiting: 2 came in, 3 changed
What changed in your saved searches, Oct 31 – Nov 6:
A study of drug A after surgery for early breast cancer
Came in · now Recruiting
Drug B with hormone therapy in advanced breast cancer
Changed
· Sites: 4 added, including Seoul and Busan
· Enrollment: 300 → 450 participants
Exercise during chemotherapy
Now Active, not recruiting
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Medicines in this class
Studies that test each. A study of two counts under both, and once above.
Studies by the year they started
834 studies that test it; most in 2008 (51); 2 more planned to start later
| Year | Studies |
|---|---|
| 1991 | 2 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 2 |
| 1997 | 5 |
| 1998 | 4 |
| 1999 | 10 |
| 2000 | 13 |
| 2001 | 7 |
| 2002 | 20 |
| 2003 | 27 |
| 2004 | 26 |
| 2005 | 31 |
| 2006 | 43 |
| 2007 | 35 |
| 2008 | 51 |
| 2009 | 42 |
| 2010 | 32 |
| 2011 | 40 |
| 2012 | 30 |
| 2013 | 32 |
| 2014 | 38 |
| 2015 | 50 |
| 2016 | 32 |
| 2017 | 35 |
| 2018 | 30 |
| 2019 | 24 |
| 2020 | 32 |
| 2021 | 32 |
| 2022 | 28 |
| 2023 | 16 |
| 2024 | 27 |
| 2025 | 17 |
| 2026 | 17 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it, so a study counts once.
Who runs them
Industry 380 · Other 526
Hoffmann-La Roche (38) · Pfizer (36) · National Institute of Allergy and Infectious Diseases (NIAID) (36) · Boehringer Ingelheim (30) · Gilead Sciences (26) · Bristol-Myers Squibb (24) · GlaxoSmithKline (14) · ViiV Healthcare (14)
Studies
Open first, then newest update. How each study uses a medicine is read from its arms, and is right about nine times in ten. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.
Testing one of them · 906
- Improving Osimertinib Exposure and Cost-effectiveness Using Pharmacokinetic Boosting With CobicistatRecruitingPhase 4Maastricht University Medical CenterNCT05748093Written as Cobicistat
- A Study to Provide Continued Access to Study Drug to Children and Adolescents Who Have Completed Clinical Studies Involving Gilead HIV TreatmentsRecruitingPhase 4Gilead SciencesNCT06337032Written as E/C/F/TAF
- Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired PneumoniaRecruitingPhase 3UMC UtrechtNCT02735707Written as Hydroxychloroquine + lopinavir/ritonavir
- Compare Oral Itraconazole and Standard Care Versus Standard Care Alone in Patients With Non-cystic Fibrosis Related Bronchiectasis With Chronic Aspergillus Infection in Reducing Bronchiectasis ExacerbationsRecruitingPhase 3Post Graduate Institute of Medical Education and Research, ChandigarhNCT06160713Written as Itraconazole 65 MG
- Randomized Interventional Clinical Trial on the Prevention of Atrial Fibrillation Using Colchicine, Amiodarone And a Posterior Pericardiotomy.Not yet recruitingPhase 3ElsanNCT07887022Written as Amiodarone
- A Phase II Trial to Evaluate the Effect of Itraconazole on Pathologic Complete Response Rates in Resectable Esophageal CancerRecruitingPhase 2VA Office of Research and DevelopmentNCT05563766Written as Itraconazole
- A Trial to Assess Cobicistat Boosted Venetoclax in Combination With Azacitidine in Adult Patients With Newly Diagnosed AMLRecruitingPhase 2Stichting Hemato-Oncologie voor Volwassenen NederlandNCT06014489Written as Cobicistat
- A Drug-drug Interaction Study to Assess the Effect of Phenytoin and Itraconazole on the Pharmacokinetics of Pelabresib in Healthy ParticipantsRecruitingPhase 1Novartis PharmaceuticalsNCT07783503Written as Itraconazole
- Itraconazole in Combination With Ablation for the Prevention of Esophageal Cancer in Patients With High-risk Barrett's EsophagusRecruitingPhase 2National Cancer Institute (NCI)NCT06732388Written as Itraconazole
- Comparative Study Evaluating Safety and Effectiveness of ( Proton Pump Inhibitor Versus Vonoprazan ) Based Triple Therapy With or Without Zinc to Eradicate H. Pylori InfectionRecruitingPhase 3Tanta UniversityNCT07275827Written as Vonoprazan + amoxicillin + clarithromycin
- Vonoprazan vs Proton Pump Inhibitor With Vitamin D or Probiotics Based Triple Therapy for Eradication of Helicobacter Pylori InfectionRecruitingPhase 2Tanta UniversityNCT07293910Written as Clarithromycin 500 mg
- Short Term Anti-aRrhythmic Therapy for Post-Operative AF in Cardiac Surgery Patients Pilot TrialRecruitingPhase 3Population Health Research InstituteNCT05841056Written as Amiodarone Hydrochloride 200 MG
- Antifungal Agents and Infrared Thermotherapy Alone or in Combination in the Treatment of SporotrichosisRecruitingNot applicableFirst Hospital of China Medical UniversityNCT06300138Written as Itraconazole
- Ketoconazole Effects on the Daily Cortisol Rhythm in Mild Autonomous Cortisol SecretionRecruitingPhase 1National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)NCT07649317Written as Ketoconazole
- An Adaptive Platform Trial for Evaluation of Novel Treatment Regimens in Children and Adolescents With HIV in AfricaNot yet recruitingPhase 3University College, LondonNCT07792096Written as Ritonavir (RTV)
- Itraconazole Therapy In Bronchiectasis With Airway MoldRecruitingPhase 4Mayo ClinicNCT07283497Written as Itraconazole 200 mg
- The Effectiveness of Itraconazole Pulse Therapy vs Topical 2% Ketoconazole in the Treatment of Moderate to Severe Seborrheic Dermatitis of Scalp.RecruitingEarly Phase 1Combined Military Hospital (CMH) institute of Medical Sciences Bahawalpur PakistanNCT07734441Written as Itraconazole (200 mg)
- Study on Drug Interactions Affecting the Pharmacokinetics of RSS0343 TabletNot yet recruitingPhase 1Reistone Biopharma Company LimitedNCT07696091Written as RSS0343 Tablet; Clarithromycin Tablets
- Effectiveness and Safety of Darunavir/Cobicistat Plus Lamivudine Compared With Darunavir/Cobicistat Plus Tenofovir Alafenamide/Emtricitabine in Virologically Suppressed People Living With HIV at 24 and 48 Weeks of Follow-upRecruitingPhase 4Instituto Mexicano del Seguro SocialNCT07678268Written as Dual therapy: darunavir/cobicistat + lamivudine
- Pragmatic Amiodarone Trial to Reduce Postoperative Atrial Fibrillation in Patients Undergoing Cardiac SurgeryNot yet recruitingPhase 4Massachusetts General HospitalNCT05543278Written as Amiodarone
See all 906 studies that test one of the cytochrome p-450 cyp3a inhibitors →
What changed recently
From the registry's own updates since Oct 15, 2026.