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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 2 Interventional

Safety and Efficacy of Ilaprazole 5, 20 and 40 mg QD and Lansoprazole 30 mg QD on Healing of Erosive Esophagitis

NCT00471094
View directory record Official record
Conditions
Esophagitis
Interventions
Ilaprazole, Lansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
831 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
94
States / cities
Hueytown, Alabama • Huntsville, Alabama • Chandler, Arizona + 91 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2012 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Phase 3 Interventional Results available

Comparison of Dexlansoprazole MR to Placebo on the Ability to Maintain Healing in Subjects With Healed Erosive Esophagitis

NCT00255151
View directory record Official record
Conditions
Esophagitis, Reflux, Esophagitis, Peptic
Interventions
Dexlansoprazole MR, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
451 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
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 11, 2026, 10:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Dexlansoprazole on Bone Homeostasis

NCT01216293
View directory record Official record
Conditions
Homeostasis, Bone and Bones
Interventions
Dexlansoprazole, Esomeprazole, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
Up to 75 Years · Female only
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
12
States / cities
San Diego, California • Walnut Creek, California • Lakewood, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2024 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Not applicable Interventional

A Prospective Trial to Assess Cost and Clinical Outcomes of a Clinical Pharmacogenomic Program

NCT02297126
View directory record Official record
Conditions
Adverse Drug Reaction
Interventions
Pharmacogenetic Intervention Arm (pharmacogenetic testing)
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
4,465 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 7, 2021 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Lansoprazole 30 mg DR Capsule Replicate Food Study

NCT01046084
View directory record Official record
Conditions
Healthy
Interventions
Lansoprazole, Prevacid®
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 7, 2010 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating The Potential Effect Of Lansoprazole On The Pharmacokinetics Of Bosutinib In Healthy Subjects

NCT00952913
View directory record Official record
Conditions
Healthy
Interventions
Bosutinib, Lansoprazole
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 18, 2011 · Synced Sep 11, 2026, 10:14 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 11, 2026, 10:14 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Dexlansoprazole MR Compared to Placebo on Maintaining Healing in Subjects With Healed Erosive Esophagitis

NCT00321737
View directory record Official record
Conditions
Esophagitis, Reflux, Esophagitis, Peptic
Interventions
Dexlansoprazole MR, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
445 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
80
States / cities
Huntsville, Alabama • Tuscon, Arizona • Anaheim, California + 77 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2012 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Phase 3 Interventional Results available

Genotype-tailored Treatment of Symptomatic Acid-Reflux in Children With Uncontrolled Asthma

NCT03015610
View directory record Official record
Conditions
Asthma, Gastroesophageal Reflux
Interventions
commercially available lansoprazole, matched placebo
Drug
Lead sponsor
Jason Lang, M.D., M.P.H.
Other
Eligibility
6 Years to 17 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
2
States / cities
Jacksonville, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 11, 2026, 10:14 AM EDT
Not listed Phase 4 Interventional

Dexlansoprazole to Treat Laryngopharyngeal Reflux and Lingual Tonsil Hypertrophy

NCT01328652
View directory record Official record
Conditions
Laryngopharyngeal Reflux, Hypertrophy of Lingual Tonsil
Interventions
dexlansoprazole
Drug
Lead sponsor
Advanced Center for Specialty Care
Other
Eligibility
18 Years to 59 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 4, 2011 · Synced Sep 11, 2026, 10:14 AM EDT
Terminated Phase 4 Interventional Results available

Dietary Control Alone Versus Dietary Control Plus Use of Proton Pump Inhibitors to Treat Pediatric Hoarseness

NCT00637416
View directory record Official record
Conditions
Dysphonia
Interventions
Lansoprazole, Placebo
Drug · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
3 Years to 18 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2017 · Synced Sep 11, 2026, 10:14 AM EDT
Completed Phase 3 Interventional

The Use of Lansoprazole to Treat Infants With Symptoms of Gastroesophageal Reflux

NCT00324974
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
Lansoprazole microgranules suspension, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
1 Month to 11 Months
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
9
States / cities
Tampa, Florida • Park Ridge, Illinois • Shreveport, Louisiana + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2010 · Synced Sep 11, 2026, 10:14 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 20, 2019 · Synced Sep 11, 2026, 10:14 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 11, 2026, 10:14 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 11, 2026, 10:14 AM EDT
Completed Phase 4 Interventional Results available

Levothyroxine Sodium in Thyroidectomized Patients Taking Proton Pump Inhibitors

NCT03094416
View directory record Official record
Conditions
Hypothyroidism;Postablative
Interventions
levothyroxine sodium capsule, Proton pump inhibitor (PPI), Levothyroxine Sodium (LT4) Tablets
Drug
Lead sponsor
IBSA Institut Biochimique SA
Industry
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
La Jolla, California • Ventura, California • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 11, 2026, 10:14 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 11, 2026, 10:14 AM EDT
Completed Phase 4 Interventional

Nexium 40mg Once Daily vs Prevacid 30mg Twice a Day for Control of Severe GERD

NCT00295685
View directory record Official record
Conditions
GERD
Interventions
Antacids
Drug
Lead sponsor
Digestive & Liver Disease Specialists
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 24, 2009 · Synced Sep 11, 2026, 10:14 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 11, 2026, 10:14 AM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Extended Release and Immediate Release Febuxostat in Participants With Gout and Moderate Renal Impairment

NCT02128490
View directory record Official record
Conditions
Gout, Moderate Renal Impairment
Interventions
Febuxostat IR, Febuxostat XR, Febuxostat placebo, Colchicine, Naproxen, Lansoprazole
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
89
States / cities
Birmingham, Alabama • Muscle Shoals, Alabama • Phoenix, Arizona + 75 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Sep 11, 2026, 10:14 AM EDT
Terminated Not applicable Interventional

Quantifying Effects of Treatment of Pediatric Dysphonia

NCT00237679
View directory record Official record
Conditions
Voice Disorders, Gastroesophageal Reflux
Interventions
Neuromuscular Electrical Stimulation, Unstimulated
Behavioral
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
6 Years to 11 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 13, 2015 · Synced Sep 11, 2026, 10:14 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 11, 2026, 10:14 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Antibiotic Treatment and Long-term Outcomes of Patients With Pseudomyxoma Peritonei of Appendiceal Origin

NCT02387203
View directory record Official record
Conditions
Pseudomyxoma Peritonei, Appendiceal Neoplasms
Interventions
PrevPac (Prevacid, Amoxicillin, Clarithromycin)
Drug
Lead sponsor
Mercy Medical Center
Other
Eligibility
21 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 18, 2024 · Synced Sep 11, 2026, 10:14 AM EDT
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 15, 2007 · Synced Sep 11, 2026, 10:14 AM EDT