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Showing 1–24 of 47 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Lansoprazole 30 mg Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Investigation of the Association Between Nasal Polyposis and Extraesophageal Reflux Disease

NCT00215787
View directory record Official record
Conditions
Nasal Polyps, Gastroesophageal Reflux
Interventions
lansoprazole
Drug
Lead sponsor
Head and Neck Surgery Associates
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 21, 2010 · Synced Sep 22, 2026, 6:12 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 14, 2010 · Synced Sep 22, 2026, 6:12 AM EDT
Not yet recruiting Phase 2Phase 3 Interventional

Efficacy and Safety of Aspirin and Lansoprazole for Prevention of Preterm Birth in High-Risk Pregnant Women: A Biomarker-Enriched Trial

NCT07337655
View directory record Official record
Conditions
Pre-term Birth
Interventions
Low-Dose Aspirin Dose: 81 mg & Lansoprazole Dose: 30 mg, Standard of Care
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
670 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Results available

Study to Evaluate the Pharmacokinetics and Safety of Dexlansoprazole in Pediatric Subjects With Symptomatic Gastroesophageal Reflux Disease

NCT01045096
View directory record Official record
Conditions
Gastroesophageal Reflux
Interventions
Dexlansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
1 Year to 11 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Anaheim, California • Miami Garden, Florida • Kansas City, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2012 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Dexlansoprazole MR and Lansoprazole on Healing of Erosive Esophagitis

NCT00251693
View directory record Official record
Conditions
Esophagitis, Reflux, Esophagitis, Peptic
Interventions
Dexlansoprazole MR, Lansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
2,038 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
96
States / cities
Alabaster, Alabama • Birmingham, Alabama • Huntsville, Alabama + 93 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2012 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Results available

A Study in Patients With Erosive Esophagitis to Investigate Safety, Tolerability, and Healing Rates After 4 Weeks Treatment of X842 or Lansoprazole and Symptom Pattern During Subsequent 4 Weeks Treatment With Lansoprazole

NCT05055128
View directory record Official record
Conditions
Erosive Esophagitis
Interventions
X842, X842 Dummy, Lansoprazole, Lansoprazole Dummy
Drug
Lead sponsor
Cinclus Pharma Holding AB
Industry
Eligibility
18 Years to 75 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 4 Interventional

Evaluation of 24-Hour Intragastric pH Using Esomeprazole, Lansoprazole, and Pantoprazole in Hispanic Patients With GERD

NCT00410592
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Esomeprazole 40mg, Pantoprazole 40mg, Lansoprazole 30mg
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 69 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
7
States / cities
Anaheim, California • Orange, California • San Diego, California + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2009 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Combination Therapy With Sitagliptin and Lansoprazole to Restore Pancreatic Beta Cell Function in Recent-Onset Type 1 Diabetes

NCT01155284
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Sitagliptin and Lansoprazole, Placebo
Drug
Lead sponsor
Sanford Health
Other
Eligibility
11 Years to 45 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
3
States / cities
San Diego, California • Saint Paul, Minnesota • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Sep 17, 2017 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional

Can E-cadherin Found in Tissue/Blood be Valuable in Identifying & Monitoring Patients With Post-proton Pump Inhibitor (PPI)-Responsive Heartburn

NCT01149395
View directory record Official record
Conditions
Heartburn, Gastroesophageal Reflux Disease
Interventions
Dexlansoprazole
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 18, 2016 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Not applicable Interventional

Trial of Oral Versus Intravenous Proton Pump Inhibitor on Intragastric pH in Patients With Bleeding Ulcers

NCT00573924
View directory record Official record
Conditions
Peptic Ulcer Hemorrhage
Interventions
Proton pump inhibitor (lansoprazole)
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 7, 2011 · Synced Sep 22, 2026, 6:12 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 23, 2012 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 2 Interventional

A Study to Check the Safety of Dexlansoprazole and Learn if it Can Treat Symptomatic Nonerosive Gastroesophageal Reflux Disease in Children 2 to 11 Years Old

NCT02616302
View directory record Official record
Conditions
Gastroesophageal Reflux Disease (GERD)
Interventions
Dexlansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
2 Years to 11 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Mobile, Alabama • San Francisco, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Dexlansoprazole Modified Release Formulation to Treat Gastroesophageal Reflux Disease

NCT00321984
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Dexlansoprazole MR, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
947 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
153
States / cities
Alabaster, Alabama • Birmingham, Alabama • Hueytown, Alabama + 150 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2011 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Bioequivalence Study of Dexlansoprazole Capsules From Two Manufacturing Plants

NCT03131895
View directory record Official record
Conditions
Healthy Volunteers
Interventions
30 mg dexlansoprazole capsules manufactured at TOB, 30 mg dexlansoprazole capsules manufactured at TPC, 60 mg dexlansoprazole capsules manufactured at TOB, 60 mg dexlansoprazole capsules manufactured at TPC
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 13, 2019 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Sensory Evaluation of Dexlansoprazole Delayed-Release Orally Disintegrating Tablets

NCT02096458
View directory record Official record
Conditions
Gastroesophageal Reflux Disease, Erosive Esophagitis, Heartburn
Interventions
Dexlansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
25 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 5, 2015 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Results available

Do Laryngeal Tissue Changes in Patients Suspected of Having Laryngopharyngeal Reflux Predict Response to Treatment?

NCT00444145
View directory record Official record
Conditions
Larynx Disease, Gastroesophageal Reflux
Interventions
Prevacid, Esophageal and Laryngeal Biopsies
Drug · Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Dexlansoprazole MR and Lansoprazole on Healing of Erosive Esophagitis

NCT00251719
View directory record Official record
Conditions
Esophagitis, Reflux, Esophagitis, Peptic
Interventions
Dexlansoprazole MR, Lansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
2,054 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
100
States / cities
Anniston, Alabama • Hueytown, Alabama • Huntsville, Alabama + 97 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2012 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Not applicable Interventional Results available

A Clinical Trial of Proton Pump Inhibitors to Treat Children With Chronic Otitis Media With Effusion

NCT00546117
View directory record Official record
Conditions
Otitis Media With Effusion
Interventions
lansoprazole, placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
2 Years to 12 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 2 Interventional

A Study to Evaluate the Efficacy and Safety of Arbaclofen Placarbil (XP19986) as Adjunctive Therapy in Subjects With Gastroesophageal Reflux Disease (GERD)

NCT00978016
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
arbaclofen placarbil-Cohort 1, Placebo-Cohort 5, arbaclofen placarbil-Cohort 2, arbaclofen placarbil-Cohort 3, arbaclofen placarbil-Cohort 4, PPI
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
62
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 56 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Compare the Bioavailability (BA) of Dexlansoprazole Delayed-release Capsules

NCT03801148
View directory record Official record
Conditions
Healthy Volunteers
Interventions
30 mg dexlansoprazole capsules manufactured at TOB, 30 mg dexlansoprazole capsules manufactured at TPC, 60 mg dexlansoprazole capsules manufactured at TOB, 60 mg dexlansoprazole capsules manufactured at TPC
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Enrollment
122 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Bioavailability, Safety, and Pharmacodynamics of Dexlansoprazole Delayed-Release Orally Disintegrating Tablets in Healthy Participants

NCT02064907
View directory record Official record
Conditions
Bioavailability
Interventions
Dexlansoprazole Delayed Release Orally Disintegrating Tablets, Dexlansoprazole Delayed Release Capsules
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Sep 22, 2026, 6:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study of 24-hour Intragastric pH Profiles of Esomeprazole 40 mg and Lansoprazole 30 mg in Healthy Volunteer Subjects

NCT00230516
View directory record Official record
Conditions
Healthy
Interventions
Nexium, Prevacid
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
2
States / cities
Los Angeles, California • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jan 3, 2013 · Synced Sep 22, 2026, 6:12 AM EDT
Terminated Phase 4 Interventional Results available

The Frequency of Eosinophilic Esophagitis in Patients With Heartburn That is Refractory to Proton Pump Inhibitors

NCT01404832
View directory record Official record
Conditions
Gastroesophageal Reflux Disease, Eosinophilic Esophagitis
Interventions
Treat with lansoprazole 30 mg BID for 2 weeks, endoscopic examination with esophageal biopsy for patients with persistent symptoms
Drug
Lead sponsor
Dallas VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 26, 2013 · Synced Sep 22, 2026, 6:12 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Study to Assess the Relative Bioavailability of Fixed-Dose Combination (FDC) Tablet (Simeprevir, Odalasvir and AL-335) Compared With Single Agents Administered Together, and to Assess the Effect of Multiple-Dose Lansoprazole or Omeprazole on Single-Dose Pharmacokinetics of SMV, ODV, and AL-335 (FDC)

NCT03059303
View directory record Official record
Conditions
Healthy
Interventions
Simeprevir 75 mg, Odalasvir 25 mg, Odalasvir 12.5 mg, Odalasvir 75 mg, AL-335 800 mg, Lansoprazole 30 mg, Omeprazole 20 mg
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 21, 2017 · Synced Sep 22, 2026, 6:12 AM EDT