Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 10:49 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 74 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo + PPI Clear all
Completed Phase 3 Interventional

Efficacy/Safety of Lansoprazole in Patients With Frequent Heartburn

NCT00389948
View directory record Official record
Conditions
Heartburn
Interventions
Lanzoprazole
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
576 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
28
States / cities
Hoover, Alabama • Huntsville, Alabama • Sierra Vista, Arizona + 23 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2007 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 3 Interventional

Efficacy/Safety of Lansoprazole in Patients With Frequent Nighttime Heartburn

NCT00701259
View directory record Official record
Conditions
Frequent Heartburn
Interventions
Lansoprazole, placebo
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
852 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Parsippany, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 15, 2010 · Synced Oct 19, 2026, 10:49 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Averting Complications of Proton Pump Inhibitor Therapy by Effervescent Calcium Magnesium Citrate

NCT03812380
View directory record Official record
Conditions
Osteoporosis, Hypomagnesemia
Interventions
EffCaMgCit, Placebo
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 99 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 17, 2022 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 3 Interventional

Efficacy/Safety of Lansoprazole in Patients With Frequent Heartburn

NCT00390390
View directory record Official record
Conditions
Heartburn
Interventions
Lansoprazole
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
576 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
30
States / cities
Mobile, Alabama • Little Rock, Alaska • Chandler, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated May 25, 2010 · Synced Oct 19, 2026, 10:49 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

EffCaMgCit to Prevent Mineral Metabolism and Renal Complications of Chronic PPI Therapy

NCT05998863
View directory record Official record
Conditions
Osteoporosis, Hypomagnesemia
Interventions
EffCaMgCit, Placebo
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
21 Years to 99 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 2 Interventional Results available

Proton Pump Inhibitors (PPI) and Fat Absorption in Cystic Fibrosis (CF) and Exocrine Pancreatic Insufficiency (EPI)

NCT03551691
View directory record Official record
Conditions
Pancreatic Insufficiency, Cystic Fibrosis
Interventions
Omeprazole 20mg Capsule, Placebo oral capsule
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
12 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 30, 2024 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Results available

A Multiple Ascending Dose Trial Investigating Safety, Tolerability and Pharmacokinetics of NNC0361-0041

NCT04279613
View directory record Official record
Conditions
Type I Diabetes
Interventions
NNC0361-0041, Placebo
Drug · Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 45 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
16
States / cities
Orange, California • San Francisco, California • Stanford, California + 13 more
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 4 Interventional

Role of Pain Modulation in GERD Patients Who Failed Standard Dose Proton Pump Inhibitors (PPI)

NCT00251732
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Standard dose (once daily) PPI plus low-dose antidepressant, Double dose PPI plus evening placebo, Rabeprazole , placebo, placebo
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 19, 2010 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Tolerability of SYNB1934 in Healthy Adult Volunteers

NCT04984525
View directory record Official record
Conditions
Healthy
Interventions
SYNB1934, SYNB1618
Drug
Lead sponsor
Synlogic
Industry
Eligibility
18 Years to 64 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2022 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 3 Interventional Results available

Efficacy of Dexlansoprazole MR on Heartburn Control in Participants Previously Receiving Twice Daily Proton Pump Inhibitor Therapy

NCT00847808
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Dexlansoprazole MR QD
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
52
States / cities
Hueytown, Alabama • Chandler, Arizona • Sierra Vista, Arizona + 49 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2012 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Biomarker Strategies for Medication-Enhanced Cognitive Training in Schizophrenia

NCT01555697
View directory record Official record
Conditions
Schizophrenia
Interventions
Memantine, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 55 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Oct 4, 2022 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Rabeprazole in Infants With Gastroesophageal Erosive Reflux Disease (GERD)

NCT00992589
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Rabeprazole sodium 5 mg, Rabeprazole sodium 10 mg, Placebo
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
1 Month to 11 Months
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
43
States / cities
Birmingham, Alabama • Columbiana, Alabama • Dothan, Alabama + 40 more
Source: ClinicalTrials.gov public record
Updated May 22, 2013 · Synced Oct 19, 2026, 10:49 AM EDT
Recruiting Phase 4 Interventional

The Mechanism Versus PPI Trial

NCT06999577
View directory record Official record
Conditions
Laryngopharyngeal Reflux, Cough, Throat Clearing, Dysphonia, Reflux
Interventions
Omeprazole 40 MG, Laryngeal Recalibration Therapy, GERD Lifestyle Recommendations
Drug · Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 89 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Deigo, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 4 Interventional Results available

Biomarker Predictors of Memantine Sensitivity in Patients With Alzheimer's Disease

NCT03703856
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Memantine
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
50 Years to 83 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of PVP001, PVP002, and PVP003 in Healthy Adults and PVP001 and PVP002 in Adults With Celiac Disease

NCT03701555
View directory record Official record
Conditions
Digestive System Disease
Interventions
PvP001 placebo, PvP001 100 mg, PvP001 300 mg, PvP001 900 mg, Maximum Feasible Dose (MFD) of PvP002, Maximum Tolerated Dose (MTD) of PvP001, MTD of PvP001 following 7 days of PPI treatment, PvP002 placebo, PvP001 600 mg, PvP003 placebo, PvP003, PvP003 150 mg
Other · Drug
Lead sponsor
Millennium Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Oct 19, 2026, 10:49 AM EDT
Terminated Phase 2 Interventional

Safety and Efficacy of AST-120 in Patients With GERD Who Continue to be Symptomatic on a Standard Dose of PPI

NCT00587275
View directory record Official record
Conditions
Gastroesophageal Reflux Disease (GERD)
Interventions
AST-120, Celphere CP-305
Drug
Lead sponsor
Ocera Therapeutics
Industry
Eligibility
18 Years to 80 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 18, 2014 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 2 Interventional Results available

Selective 5-HT4 Receptor Agonist and Proton Pump Inhibitor (PPI) in Subjects With Gastroesophageal Reflux Disease (GERD)

NCT01472939
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
SSP-002358 (0.1 mg) + PPI, SSP-002358 (0.5 mg) + PPI, SSP-002358 (2.0 mg) + PPI, Placebo + PPI
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 70 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
62
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 58 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Oct 19, 2026, 10:49 AM EDT
Terminated Phase 4 Interventional Results available

Safety and Efficacy of Lansoprazole 30mg Twice Daily in Treatment of Laryngitis Associated With Gastroesophageal Reflux

NCT00369265
View directory record Official record
Conditions
Laryngopharyngeal Reflux
Interventions
Lansoprazole, Sugar pill
Drug · Dietary Supplement
Lead sponsor
American Institute for Voice and Ear Research
Other
Eligibility
18 Years to 89 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
3
States / cities
Detroit, Michigan • Philadelphia, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2012 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of Viokase® 16 for the Correction of Steatorrhea

NCT00559364
View directory record Official record
Conditions
Exocrine Pancreatic Insufficiency, Chronic Pancreatitis, Pancreatectomy
Interventions
Viokase® 16, Placebo, Proton pump inhibitor (PPI), Omeprazole
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Mar 16, 2017 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Effect of Pantoprazole 40mg Daily vs Placebo on Power Spectral Analysis of the Sleep EEG of Patients With GERD.

NCT00674245
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Pantoprazole, placebo
Drug
Lead sponsor
Southern Arizona VA Health Care System
Federal
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 19, 2010 · Synced Oct 19, 2026, 10:49 AM EDT
Terminated Phase 3 Interventional Results available

A Trial of IW-3718 for 8 Weeks in Patients With Persistent Gastroesophageal Reflux Disease (GERD) Receiving Proton Pump Inhibitors (PPIs)

NCT03561090
View directory record Official record
Conditions
Gastroesophageal Reflux Disease (GERD)
Interventions
IW-3718, placebo, Standard-dose PPIs QD
Drug
Lead sponsor
Ironwood Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
495 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
93
States / cities
Anniston, Alabama • Mobile, Alabama • Phoenix, Arizona + 81 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2021 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of LY2940680 in Healthy Participants

NCT01681186
View directory record Official record
Conditions
Healthy Participants
Interventions
LY2940680 Capsule(s) (Reference), LY2940680 Tablet (Test), Lansoprazole, Placebo Capsule(s)
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 21, 2019 · Synced Oct 19, 2026, 10:49 AM EDT
Withdrawn Phase 2 Interventional

A Phase II Trial of Proton Pump Inhibitors With Chemotherapy in Patients With Metastatic Head and Neck Cancer

NCT02013453
View directory record Official record
Conditions
Cancer of Head and Neck
Interventions
Omeprazole, Carboplatin, 5FU, Paclitaxel, Pemetrexed
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 19, 2026, 10:49 AM EDT
Completed Phase 1 Interventional

A Study of GDC-0134 to Determine Initial Safety, Tolerability, and Pharmacokinetic Parameters in Participants With Amyotrophic Lateral Sclerosis

NCT02655614
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
GDC-0134, Placebo, Rabeprazole, Midazolam, Caffeine
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
8
States / cities
San Francisco, California • Jacksonville, Florida • Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Oct 19, 2026, 10:49 AM EDT