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ClinicalTrials.gov public records Last synced Oct 19, 2026, 1:35 AM EDT

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

Showing 1–24 of 25 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Naltrexone block Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Dose Proportionality Study Of PF-00345439 Formulation Under Fed Conditions

NCT02089295
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
2
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Human Non-Shivering Thermogenesis and Basal Metabolic Rate

NCT01950520
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Propranolol, Pindolol, Dantrolene, Magnesium Sulfate, Caffeine, Qsymia, Topiramate, Phentermine, Naltrexone, Mirabegron 50mg, Mirabegron 200mg, Placebo Cohort 1, Placebo Cohort 2, Placebo for Mirabegron
Drug · Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 35 Years · Male only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional

Double-Blind Trial of Ketamine Therapy Plus or Minus Naltrexone in Treatment Resistant Depression (TRD)

NCT02911597
View directory record Official record
Conditions
Depression
Interventions
Naltrexone
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2018 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Not applicable Interventional Results available

Risky Decision Making in Methamphetamine Users: The Role of Opioid Blockade

NCT01822132
View directory record Official record
Conditions
Methamphetamine Abuse, HIV
Interventions
Extended release naltrexone, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 55 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 4 Interventional

Long-acting Buprenorphine vs. Naltrexone Opioid Treatments in CJS-involved Adults

NCT04219540
View directory record Official record
Conditions
Opioid-use Disorder
Interventions
XR-B (SUBLOCADETM), XR-NTX
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
675 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
New Haven, Connecticut • Baltimore, Maryland • Hanover, New Hampshire + 3 more
Source: ClinicalTrials.gov public record
Updated May 14, 2025 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food Effect And Relative Bioavailability Study Of Oxycodone in Healthy Volunteers

NCT01924676
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2015 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 4 Interventional

Rapid Antidepressant Improvement Secondary to Excitatory Brain Responses

NCT04276259
View directory record Official record
Conditions
Major Depressive Disorder, Depression
Interventions
Buprenorphine, Naltrexone, Oral Placebo, IM Placebo, Theta burst stimulation (TBS) of the ventromedial prefrontal cortex.
Drug · Device
Lead sponsor
Marta Peciña, MD PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 19, 2026, 1:35 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Yohimbine and Naltrexone on Sexual Function

NCT00042536
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Naltrexone HCL/ Yohimbine HCL
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 4 Interventional Results available

Study of Naltrexone-Induced Blockade of Antidepressant Effects

NCT04322526
View directory record Official record
Conditions
Depression, Major Depressive Disorder
Interventions
Naltrexone 50 Mg Oral Tablet, Placebo oral tablet
Drug
Lead sponsor
Marta Peciña, MD PhD
Other
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Oral PF614 Relative to OxyContin (PF614-102)

NCT05043766
View directory record Official record
Conditions
Healthy Volunteers
Interventions
PF614, Naltrexone Hydrochloride, OxyContin
Drug
Lead sponsor
Ensysce Biosciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 24, 2024 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Ketoconazole on Sufentanil NanoTab Pharmacokinetics

NCT01721070
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Sufentanil NanoTab (SUF NT) 15 mcg, Ketoconazole 400 mg, sufentanil NanoTab (SUF NT) 15 mcg
Drug
Lead sponsor
Talphera, Inc
Industry
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 4, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of PF614 Compared to OxyContin® in Healthy Volunteers (PF614-101)

NCT02454712
View directory record Official record
Conditions
Healthy
Interventions
PF614, Oxycodone extended-release, Naltrexone Hydrochloride
Drug
Lead sponsor
Ensysce Biosciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioequivalency Study of Buprenorphine Hydrochloride 8 mg Tablet Under Fasted Conditions

NCT00992095
View directory record Official record
Conditions
Opioid-Related Disorders
Interventions
buprenorphine hydrochloride
Drug
Lead sponsor
Roxane Laboratories
Industry
Eligibility
18 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Ethanol on Oxycodone Pharmacokinetics in Healthy Volunteers

NCT02165930
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone, Naltrexone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
21 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
2
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics Study of ALO-02 and OxyContin

NCT01557257
View directory record Official record
Conditions
Management of Moderate to Severe Pain
Interventions
ALO-02, Naltrexone block, OxyContin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 28, 2012 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study To Characterize The Pharmacokinetics Of Oxycodone In Healthy Volunteers

NCT01552863
View directory record Official record
Conditions
Pain
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 31, 2015 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 3 Interventional Results available

Behavioral Naltrexone Therapy for Promoting Adherence to Oral Naltrexone vs Extended Release Injectable Depot Naltrexone

NCT00577408
View directory record Official record
Conditions
Opiate Dependence, Heroin Dependence
Interventions
depot naltrexone, Oral Naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2017 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Food on Oxycodone Pharmacokinetics in Healthy Volunteers

NCT02117583
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
2
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study of Long-Acting Injectable Naltrexone to Treat Cannabis Dependence

NCT02088177
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Long-acting injectable naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Pharmacokinetics of the Hydrocodone Extended-Release Tablet (CEP-33237) in Subjects With Normal Renal Function and Subjects With Varying Degrees of Renal Impairment

NCT01319266
View directory record Official record
Conditions
Renal Impairment
Interventions
Hydrocodone Bitartrate extended-release tablet
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
4
States / cities
Miami, Florida • Orlando, Florida • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2012 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single-Dose, Crossover Study To Compare Bioavailability Of Two Formulations Under Fed And Fasted Conditions

NCT02059915
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 4, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Not applicable Interventional Results available

Effect of Naltrexone on Counterregulatory Mechanisms in Hypoglycemia

NCT01462227
View directory record Official record
Conditions
Hypoglycemia
Interventions
Naltrexone High Dose, Naltrexone Low Dose
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 18, 2016 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics And Relative Bioavailability Study Of Oxycodone in Healthy Volunteers

NCT01717027
View directory record Official record
Conditions
Healthy
Interventions
Oxycodone
Drug
Lead sponsor
Pain Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 31, 2015 · Synced Oct 19, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioequivalency Study of Oxymorphone Hydrochloride 10 mg Tablets Under Fasted Conditions

NCT01210638
View directory record Official record
Conditions
Pain
Interventions
Oxymorphone
Drug
Lead sponsor
Roxane Laboratories
Industry
Eligibility
18 Years to 45 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 19, 2026, 1:35 AM EDT