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ClinicalTrials.gov public records Last synced Oct 20, 2026, 4:50 PM EDT

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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: antacid Clear all
Completed Not applicable Interventional Results available

Minocycline in the Treatment of Angelman Syndrome

NCT01531582
View directory record Official record
Conditions
Angelman Syndrome
Interventions
minocycline
Drug
Lead sponsor
University of South Florida
Other
Eligibility
4 Years to 12 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Sequential Rotavirus Vaccine Schedules

NCT01266850
View directory record Official record
Conditions
Rotavirus Infection
Interventions
Rotarix®, RotaTeq®
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Weeks to 14 Weeks
Enrollment
1,384 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
13
States / cities
Oakland, California • Atlanta, Georgia • Iowa City, Iowa + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2014 · Synced Oct 20, 2026, 4:50 PM EDT
Active, not recruiting Phase 2 Interventional

Controlled Trial of Omadacycline Randomized Treatment Given for Bone and Joint Infection

NCT05753215
View directory record Official record
Conditions
Bone Infection, Joint Infection, Bone and Joint Infection
Interventions
Omadacycline Pill, Standard of Care
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional

Effect of Food and Antacid on BIIB021 With Advanced Solid Tumors

NCT01017198
View directory record Official record
Conditions
Advanced Solid Tumors
Interventions
BIIB021 and Food, BIIB0121 and Antacid
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
3
States / cities
Scottsdale, Arizona • Encinitas, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 16, 2013 · Synced Oct 20, 2026, 4:50 PM 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 25, 2009 · Synced Oct 20, 2026, 4:50 PM EDT
Not listed Phase 2 Interventional

Microbiota Transplant Therapy for Children With Both Autism Spectrum Disorder and Gastrointestinal Disorders

NCT06503978
View directory record Official record
Conditions
Autism Spectrum Disorder, Gastro-Intestinal Disorder, Constipation, Diarrhea
Interventions
MTP-101P, Vancomycin, Miralax, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
4 Years to 18 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Oct 20, 2026, 4:50 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Optimizing PTCy Dose and Timing

NCT03983850
View directory record Official record
Conditions
Graft Versus Host Disease, Hematologic Neoplasms
Interventions
Busulfan, Fludarabine, Cyclophosphamide, Mycophenolate Mofetil, Sirolimus
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
12 Years to 120 Years
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 26, 2025 · Synced Oct 20, 2026, 4:50 PM EDT
Not listed Phase 2 Interventional

Microbiota Transfer Therapy for Children and Adults With Both Pitt Hopkins Syndrome and Gastrointestinal Disorders

NCT06321796
View directory record Official record
Conditions
Pitt Hopkins Syndrome
Interventions
MTP-101P, Vancomycin, Magnesium Citrate, Antacid, Placebo MTP-101P, Placebo Vancomycin
Combination Product
Lead sponsor
Gut-Brain-Axis Therapeutics Inc.
Other
Eligibility
5 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 20, 2024 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Study To Investigate The Potential Effect Of Proton Pump Inhibitor On The Pharmacokinetics Of Palbociclib (PD-0332991)

NCT01918176
View directory record Official record
Conditions
Healthy
Interventions
Palbociclib alone, Palbociclib + Rabeprazole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Antacid on Bioavailability of Febuxostat After Administration of a Febuxostat 80 mg Extended-Release Capsule

NCT02382640
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Febuxostat XR, Maalox Advance Regular Strength liquid
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 55 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 29, 2016 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Antacids on Gleevec® in Healthy Volunteers

NCT00446316
View directory record Official record
Conditions
Healthy
Interventions
Antacids (Mg-Al-based), Imatimib Mesylate (Gleevec®)
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 22, 2016 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 2 Interventional Results available

Effect of Alendronate on Bone in People With Chronic Spinal Cord Injury (SCI) Previously Treated With Teriparatide

NCT02195895
View directory record Official record
Conditions
Spinal Cord Injury, Bone Loss, Osteoporosis
Interventions
Alendronate, Calcium, Vitamin D
Drug · Dietary Supplement
Lead sponsor
Northwestern University
Other
Eligibility
21 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 30, 2023 · Synced Oct 20, 2026, 4:50 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Gedatolisib, Hydroxychloroquine or the Combination for Prevention of Recurrent Breast Cancer ("GLACIER")

NCT03400254
View directory record Official record
Conditions
Breast Cancer
Interventions
Hydroxychloroquine (HCQ), Gedatolisib
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 28, 2020 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 2 Interventional Results available

Proof of Concept Study Efficacy of an Antacid/Lansoprazole Combination for Relief of Heartburn

NCT01037452
View directory record Official record
Conditions
Heartburn
Interventions
Calcium carbonate/magnesium hydroxide/Lansoprazole 15 mg, Lansoprazole, Calcium carbonate/magnesium hydroxide, Placebo
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Mar 28, 2011 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Examine the Effect of Antacid and Omeprazole on the Single-Dose Pharmacokinetics of Tebipenem Pivoxil Hydrobromide (TBPM-PI-HBr) in Healthy Adult Subjects

NCT04368585
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Tebipenem pivoxil hydrobromide (TBPM-PI-HBr), 20 mL aluminum hydroxide/magnesium hydroxide/simethicone (400 mg aluminum hydroxide/400 mg magnesium hydroxide/40 mg simethicone per 5 mL), Omeprazole
Drug
Lead sponsor
Spero Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 4, 2020 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 3 Interventional Results available

Efficacy Study of PN400 (VIMOVO) Twice Daily and Celebrex Once Daily in Patients With Osteoarthritis

NCT00665431
View directory record Official record
Conditions
Osteoarthritis
Interventions
PN 400 (VIMOVO), celebrex, Placebo, Rescue Antacid
Drug · Other
Lead sponsor
POZEN
Industry
Eligibility
50 Years and older
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 6, 2011 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 2 Interventional Results available

Anemia Studies in CKD: Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat- Iron (ASCEND: Fe)

NCT03457701
View directory record Official record
Conditions
Anaemia
Interventions
Daprodustat, rhEPO, Ferrous sulfate containing the stable iron isotope (57Fe), Ferrous sulfate containing the stable iron isotope (58Fe)
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
3
States / cities
Fort Worth, Texas • Lufkin, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Food and Calcium on Pharmacokinetics of a Single Dose of S-888711 in Healthy Adult Volunteers

NCT03897413
View directory record Official record
Conditions
Healthy Volunteer
Interventions
S-888711, Calcium Antacid
Drug · Dietary Supplement
Lead sponsor
Shionogi
Industry
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 1, 2019 · Synced Oct 20, 2026, 4:50 PM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Comparing Alkalinizing Agents Efficacy on Stone Risk in Patients on a Metabolically Controlled Diet

NCT04651088
View directory record Official record
Conditions
Kidney Stone
Interventions
Potassium citrate, Sodium bicarbonate, Litholyte, Crystal Lite, Potassium Bicarbonate
Drug · Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2026 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Of Three Different Stomach Acid Reducing Agents When Given With Palbociclib (PD-0332991) And Food

NCT02097329
View directory record Official record
Conditions
Healthy
Interventions
palbociclib commercial free base, famotidine, rabeprazole, antacid
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 19, 2014 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Antacid and Multivitamin and Mineral Tablet on the Study Drug GSK1349572

NCT00858455
View directory record Official record
Conditions
Healthy Volunteer
Interventions
GSK1349572 and MaaloxAdvanced Maximum Strength, GSK1349572 and Maalox Advanced Maximum Strength, GSK1349572 and One A Day, GSK1349572
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jun 5, 2009 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 4 Interventional

Effectiveness of Urinary Alkalinizing Agents on Kidney Stone Risk

NCT04095975
View directory record Official record
Conditions
Kidney Stone
Interventions
Baking Soda, LithoLyte
Dietary Supplement
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Oct 20, 2026, 4:50 PM EDT
Recruiting Phase 4 Interventional

Famotidine and Antacids for Treatment of Dyspepsia

NCT06241183
View directory record Official record
Conditions
Dyspepsia, GERD, Acid Reflux
Interventions
Intravenous Famotidine, Oral Maalox/ Mylanta
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Oct 20, 2026, 4:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Drug Interactions Between Danicopan and Cyclosporine, Tacrolimus, Antacids, and Omeprazole in Healthy Adults

NCT05109390
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Cyclosporine, Tacrolimus, Calcium Carbonate, Aluminum/Magnesium Hydroxide/Simethicone, Omeprazole
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 20, 2026, 4:50 PM EDT