Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 3, 2026, 10:25 AM EDT

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Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Birth Control
Interventions
WC then FC2, FC2 then WC
Device
Lead sponsor
CONRAD
Other
Eligibility
18 Years and older
Enrollment
505 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Infertility
Interventions
Completion questionnaires/providing biological samples
Other
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 55 Years
Enrollment
1,474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
HIV/AIDS, HIV Infections
Interventions
darunavir, Ritonavir, Etravirine
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Not yet recruiting Not applicable Interventional

Sperm, Exposure and Endocrine Disruptors

NCT07703046
Conditions
Fertility, Male Fertility, Sperm Count, Low, Sperm Quality
Interventions
EDC Education Intervention
Behavioral
Lead sponsor
Million Marker Wellness, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Berkeley, California
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetic Study of Avanfil in Healthy Young Male Subjects

NCT00914511
Conditions
Avanfil ADME, Semen Exposure, Sperm Function
Interventions
avanafil 200mg
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Tempe, Arizona
Conditions
Healthy
Interventions
dolutegravir
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
HIV/AIDS
Interventions
Maraviroc
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Completed No phase listed Observational Accepts healthy volunteers

Residence Time of Biomarkers of Semen Exposure

NCT00984555
Conditions
Semen Exposure
Interventions
Not listed
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland • Norfolk, Virginia