Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 28, 2026, 7:31 PM EDT

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

Showing 25–31 of 7 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Back Pain Lower Back Chronic
Interventions
Buprenorphine, Oxycodone Immediate-Release
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
85
States / cities
Birmingham, Alabama • Haleyville, Alabama • Phoenix, Arizona + 72 more
Conditions
Low Back Pain, Chronic Pain
Interventions
NKTR-181 BID tablets, Placebo to match NKTR-181 BID tablets
Drug
Lead sponsor
Nektar Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
54
States / cities
Saraland, Alabama • Phoenix, Arizona • Tempe, Arizona + 48 more
Conditions
Low Back Pain
Interventions
Hydrocodone ER, Placebo
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
61
States / cities
Birmingham, Alabama • Mobile, Alabama • Montgomery, Alabama + 54 more
Conditions
Pain, Low Back Pain
Interventions
Buprenorphine, Placebo
Drug
Lead sponsor
BioDelivery Sciences International
Industry
Eligibility
18 Years and older
Enrollment
334 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
24
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 21 more
Conditions
Chronic Low Back Pain
Interventions
Oxycodone DETERx, Placebo
Drug
Lead sponsor
Collegium Pharmaceutical, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
740 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
45
States / cities
Mesa, Arizona • Phoenix, Arizona • Tucson, Arizona + 41 more
Conditions
Chronic Low Back Pain
Interventions
EN3324 (axomadol), Placebo
Drug
Lead sponsor
Grünenthal GmbH
Industry
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
59
States / cities
Phoenix, Arizona • Tucson, Arizona • Tuscon, Arizona + 43 more
Conditions
Chronic Low Back Pain
Interventions
ABT-712, Placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
21 Years to 75 Years
Enrollment
287 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
31
States / cities
Huntsville, Alabama • Burbank, California • San Diego, California + 27 more