Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Jun 27, 2026, 12:03 AM EDT

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

Showing 1–6 of 6 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Breast Cancer
Interventions
Tamoxifen
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Conditions
Pain, CYP2D6 Polymorphism
Interventions
CYP2D6, Brief Pain Inventory-Short Form (BPI-SF), M.D. Anderson Symptom Inventory (MDASI), OPRM1
Genetic · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 120 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Gainesville, Florida • Tampa, Florida
Completed No phase listed Observational

YouScript IMPACT Registry

NCT02191358
Conditions
Adverse Drug Events, Adverse Drug Reactions, Drug Interaction Potentiation, Drug Metabolism, Poor, CYP2D6-RELATED, Drug Metabolism, Poor, CYP2C19-RELATED, Cytochrome P450 Enzyme Deficiency, Cytochrome P450 CYP2D6 Enzyme Deficiency, Cytochrome P450 CYP2C9 Enzyme Deficiency, Cytochrome P450 CYP2C19 Enzyme Deficiency, Cytochrome P450 CYP3A Enzyme Deficiency, Poor Metabolizer Due to Cytochrome P450 CYP2C9 Variant, Poor Metabolizer Due to Cytochrome P450 CYP2C19 Variant, Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant
Interventions
Not listed
Lead sponsor
Genelex Corporation
Industry
Eligibility
65 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
7
States / cities
Garden Grove, California • Denver, Colorado • Lexington, Kentucky + 3 more
Completed Phase 4 Interventional Results available

Effects of Isotretinoin on CYP2D6 Activity

NCT03076021
Conditions
CYP2D6 Polymorphism
Interventions
Isotretinoin, dextromethorphan
Drug
Lead sponsor
University of Washington
Other
Eligibility
12 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Cytochrome P450 CYP2D6 Enzyme Deficiency, Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Ultrarapid Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Extensive Metabolizer Due to Cytochrome P450 CYP2D6 Variant, Cytochrome P450 CYP2C9 Enzyme Deficiency, Cytochrome P450 CYP2C19 Enzyme Deficiency, Drug Metabolism, Poor, CYP2D6-RELATED, Drug Metabolism, Poor, CYP2C19-RELATED, CYP2D6 Polymorphism
Interventions
Pharmacogenetic testing, Software-based drug & gene interaction risk analysis, MTM
Genetic · Other
Lead sponsor
Genelex Corporation
Industry
Eligibility
65 Years and older
Enrollment
341 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Retinoids on CYP2D6 Activity During Pregnancy

NCT03117660
Conditions
CYP2D6 Polymorphism
Interventions
Vitamin A
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Seattle, Washington