TheraRadar
Data updated: May 26, 2026

PREVACID (lansoprazole)

Proton Pump Inhibitors
Gastrointestinal Approved 1995-05-10

Prevacid (lansoprazole) is a proton pump inhibitor (PPI) indicated for the short-term treatment and maintenance of healed duodenal ulcers and active benign gastric ulcers in adults. It is used to treat symptomatic gastroesophageal reflux disease (GERD) and erosive esophagitis (EE) in both adults and pediatric patients aged 1 year and older, as well as for the maintenance of healed EE in adults. Additionally, Prevacid is indicated to reduce the risk of NSAID-associated gastric ulcers, treat pathological hypersecretory conditions (such as Zollinger-Ellison syndrome), and eradicate *H. pylori* to reduce duodenal ulcer recurrence when used in combination with antibiotics (amoxicillin and/or clarithromycin).

Source: FDA Label • Takeda • Proton Pump Inhibitor

How PREVACID Works

Lansoprazole is an antisecretory substituted benzimidazole that suppresses gastric acid secretion by specifically inhibiting the (H+, K+)-ATPase enzyme system at the secretory surface of the gastric parietal cell. By inhibiting this "proton pump," the drug blocks the final step of gastric acid production. This effect is dose-related and inhibits both basal and stimulated acid secretion, regardless of the stimulus. Lansoprazole does not possess anticholinergic or histamine type-2 antagonist activity.

14
Indications
--
Phase 3 Trials
3
Priority Reviews
31
Years on Market

Details

Status
Prescription
First Approved
1995-05-10
Routes
ORAL
Dosage Forms
TABLET, ORALLY DISINTEGRATING, DELAYED RELEASE, CAPSULE, DELAYED REL PELLETS, FOR SUSPENSION, DELAYED RELEASE

Companies

Active Ingredient: LANSOPRAZOLE

PREVACID Approval History

1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
230 FDA actions from 1995 to 2023 · 10 indication expansions
Aug 2023 SUPPL
Label · Labeling
Mar 2022 SUPPL
Label · Labeling
Nov 2020 SUPPL
Label · Labeling

What PREVACID Treats

6 indications

PREVACID is approved for 6 conditions since its original approval in 1995. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Duodenal Ulcer
  • H. pylori Infection
  • Gastric Ulcer
  • Gastroesophageal Reflux Disease
  • Erosive Esophagitis
  • Zollinger-Ellison Syndrome
Source: FDA Label

PREVACID Competitive Set

Pro

Three rings of competition based on shared molecular targets and treated indications.

Unlock 16 more competitors across all three rings.
Upgrade to Pro

Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to PREVACID

3 of 20

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

LANSOPRAZOLE
LANSOPRAZOLE
6 shared
Dr. Reddy's
Shared indications:
Duodenal UlcerH. pylori InfectionGastric Ulcer +3 more
ESOMEPRAZOLE MAGNESIUM
ESOMEPRAZOLE MAGNESIUM
5 shared
Cipla
FAMOTIDINE PRESERVATIVE FREE
FAMOTIDINE
5 shared
Viatris
📋

Clinical Trial Registry

65 trials
Trial Sponsor ID Phase Status Title
NCT05946135 4-2023-0598 Ph 4 completed Efficacy of Fexuprazan for Prevention or Control of Gastritis Symptoms in Patients on Treatment With Systemic Steroids
NCT04965298 TIPAL 269050-80-06-19 2020-000041-14, 269050 Ph 3 recruiting Treating People With Idiopathic Pulmonary Fibrosis With the Addition of Lansoprazole
NCT04188119 IMpALA CFT / sp123 2018-004121-80, 017NovCC107 Ph 2 withdrawn A Proof of Concept Window Trial of the IMmunological Effects of AveLumab and Aspirin in Triple-Negative Breast Cancer
NCT07079540 X842 SND-X842-301 ChiCTR20210736 Ph 3 completed The Phase III Clinical Trial of X842 Capsules for Reflux Esophagitis
NCT04531475 SND-X842-201 Ph 2 completed Study to Evaluate the Safety and Efficacy of X842 in Patients With Reflux Esophagitis
NCT06284876 IY-NTNS03 Ph 3 recruiting Study to Evaluate the Efficacy and Safety of Ilaprazole 10 mg in Prevention NSAIDs Associated Peptic Ulcer
NCT06964334 vit D supplement h.pylori Ph 3 not yet recruiting The Effect of Vitamin D Supplement as Adjuvant Therapy in Eradication of Helicobacter Pylori Infection
NCT04453189 CR108812 2020-000380-23, 64417184RSV1004 Ph 1 completed A Study to Assess the Effects of Acid-Reducing Agent(s) on JNJ-64417184 in Healthy Participants
NCT05050188 KFP-2020-H008-HW-101 Ph 1 completed A Study to Evaluate the Safety, Tolerability and Pharmacokinetics/Pharmacodynamics of Oral Doses of H008
NCT02679508 results posted Vonoprazan-4003 U1111-1178-8948, JapicCTI-163153 Ph 4 completed Vonoprazan Study in Patients With Erosive Esophagitis to Evaluate Long-term Safety
NCT05055128 results posted CX842A2201 2020-003319-91 Ph 2 completed 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
NCT05861687 LB.02.01.XV.III.2.2.2/344/2022 Ph 2, Ph 3 completed Recurrence Rate Comparison Between Esomeprazole and Lansoprazole in Eradicating Helicobacter Pylori Infection Among Children
NCT04729101 results posted VONO-103 Ph 1 completed Study to Evaluate the Pharmacokinetics, Pharmacodynamics, and Safety of Vonoprazan and Lansoprazole in Healthy Participants
NCT03355170 NEU-05.16 Ph 4 withdrawn Cardiac Safety of Lansoprazole and Domperidon Combination
NCT04874935 34615/4/21 Ph 3 completed The Possible Efficacy and Safety of Lansoprazole Co-administration With Neoadjuvant Chemotherapy in Women With Breast Cancer
NCT02022280 PPI 23848 1144447-121-DHAXB Ph 1 completed Effect of Proton Pump Inhibitors on Endothelial Function
NCT04124926 results posted EE-301 2019-002579-33 Ph 3 completed Efficacy and Safety of Vonoprazan Compared to Lansoprazole in Participants With Erosive Esophagitis
NCT05417997 APRON 2020-OK-01 Ph 3 completed Effect of Kunamin in SARS-CoV-2 RT-PCR Positive Covid-19 Patients
NCT04167670 results posted HP-301 2019-002668-28 Ph 3 completed Efficacy and Safety of Vonoprazan Compared to Lansoprazole in Participants With Helicobacter Pylori Infection
NCT00472186 results posted 06-11-0513 Ph 4 terminated The Effects of Reducing Stomach Acid on Post-tonsillectomy Pain
NCT03192059 PRIMMO 2016-001569-97 Ph 2 completed Study of Pembrolizumab, Radiation and Immune Modulatory Cocktail in Cervical/Uterine Cancer
NCT03050307 results posted TAK-438_302 U1111-1138-8706, CTR20170100 Ph 3 completed Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Gastric Ulcer Participants With or Without Helicobacter Pylori Infection
NCT03050359 results posted TAK-438_304 U1111-1139-0293, CTR20170104 Ph 3 completed Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Duodenal Ulcer Participants With or Without Helicobacter Pylori Infection
NCT02388737 results posted TAK-438_305 U1111-1136-5706, CTR20150039 Ph 3 completed Efficacy and Safety of Vonoprazan Compared to Lansoprazole in the Maintenance Treatment of Erosive Esophagitis
NCT01123031 CCH-100118 Ph 4 withdrawn Oral vs Intravenous and Proton Pump Inhibitor (PPI)for Peptic Ulcer Bleeding (PUB)
NCT01681186 results posted 14893 I4J-MC-HHBG Ph 1 completed A Study of LY2940680 in Healthy Participants
NCT01180179 NNH_RCT Ph 4 completed PPI vs H2RA in Patients With Helicobacter Pylori-Negative Idiopathic Bleeding Ulcers
NCT03487562 DW_DWP14012003 Ph 1 completed Pharmacokinetics, Pharmacodynamics, Safety and Tolerability of After Administrations of DWP14012 Alone and Combinations of DWP14012, Clarithromycin and Amoxicillin in Healthy Male Subjects
NCT02388724 results posted TAK-438_303 U1111-1138-4788, CTR20150040 Ph 3 completed Efficacy and Safety of Oral Once-Daily Vonoprazan (TAK-438) in Participants With Erosive Esophagitis
NCT02873702 results posted TAK-390MR_301 U1111-1142-0320 Ph 3 terminated Efficacy and Safety of Dexlansoprazole in Healing and Maintaining Healing of Erosive Esophagitis
NCT02892409 results posted TAK-438_115 U1111-1179-5816, 02892409 Ph 1 completed TAK-438 Bismuth Drug Interaction Study
NCT03468777 CR108437 2017-004832-12, 64041575RSV1010 Ph 1 terminated A Crossover Study to Assess the Drug-drug Interaction of Acid Reducing Agent(s) on the Pharmacokinetics of a Single Oral Dose of Lumicitabine (JNJ-64041575) in Healthy Adult Participants
NCT03124420 17MMHIS020 Ph 4 completed Intraluminal Therapy for Helicobacter Pylori Infection
NCT02625259 results posted MLN1117-1002 U1111-1159-5909 Ph 1 completed A Study to Evaluate the Relative Bioavailability, Effect of Food, and Gastric Potential Hydrogen (pH) Modification on the Pharmacokinetics of TAK-117 (MLN1117) in Healthy Participants
NCT00685295 FAIRTOP results posted FAIRTOP Ph 1, Ph 2 completed Fentanyl Administered Intraorally for Rapid Treatment of Orthopedic Pain
NCT00637416 results posted 10720 Ph 4 terminated Dietary Control Alone Versus Dietary Control Plus Use of Proton Pump Inhibitors to Treat Pediatric Hoarseness
NCT02633930 KY20151203-2 Ph 4 completed Helicobacter Pylori Eradication With Berberine Quadruple Therapy Versus Clarithromycin Quadruple Therapy
NCT02139046 results posted FEB-XR_301 U1111-1152-4040 Ph 3 completed Efficacy and Safety of Extended Release and Immediate Release Febuxostat in Participants With Gout
NCT02128490 results posted FEB-XR_201 U1111-1152-3942 Ph 2 completed Efficacy and Safety of Extended Release and Immediate Release Febuxostat in Participants With Gout and Moderate Renal Impairment
NCT02334501 PUMA-NER-0101 Ph 1 completed Open-label PK Study to Evaluate Lansoprazole and Neratinib in Healthy Subjects
NCT02755753 REPAIR 037-OTC-1201i Ph 4 completed A Study to Evaluate REbamiPide as an Adjuvant Regimen to Heal erosIve Reflux Esophagitis
NCT02175927 rjkls2014007 Ph 4 completed High Dose Amoxicillin Versus Tetracycline as Second-line Treatment of Resistant Helicobacter Pylori Infection
NCT01082029 07-435 Ph 4 completed Study of Anti-reflux Medication as a Potential Treatment for Glue Ear in Children
NCT02175901 rjkls2014006 Ph 4 completed Amoxicillin/Metronidazole Based Quadruple Therapy for Helicobacter Pylori Eradication
NCT01946971 Konect-LASP Ph 1, Ph 2 completed Lansoprazole in Preterm Infants With Gastroesophageal Reflux (GER)
NCT01456247 TAK-438/OCT-302 U1111-1123-9658, JapicCTI-111616 Ph 3 completed Long-term Extension Study of TAK-438 for the Prevention of Recurrent Gastric or Duodenal Ulcers During Therapy of Low-dose Aspirin
NCT01456260 TAK-438/OCT-301 U1111-1123-8762, JapicCTI-111611 Ph 3 completed Long-term Extension Study of TAK-438 for the Prevention of Recurrent Gastric or Duodenal Ulcers During Therapy of Non-steroidal Anti-inflammatory Drug (NSAID)
NCT01040455 200907053M Ph 4 terminated Lansoprazole for Subgroups of Functional Dyspepsia
NCT01452750 TAK-438/CCT-301 U1111-1123-8722, JapicCTI-111613 Ph 3 completed Efficacy and Safety of TAK-438 for the Prevention of Recurrent Gastric or Duodenal Ulcers During Therapy of Non-steroidal Anti-inflammatory Drug (NSAID)
NCT01452763 TAK-438/CCT-302 U1111-1123-8746, JapicCTI-111610 Ph 3 completed Efficacy and Safety of TAK-438 for the Prevention of Recurrent Gastric or Duodenal Ulcers During Therapy of Low-dose Aspirin

Showing 50 of 65 trials

🔬

Active Pipeline

Pro

Ongoing clinical trials by development phase

Loading...

Key Completed Trials

Pro

Completed studies with published results, ranked by significance

Loading...
📊

Trial Timeline

Full development history with FDA approval milestones

|
Loading...
Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

PREVACID FDA Label Details

Indications & Usage

FDA Label (PDF)

PREVACID is indicated for the treatment of Duodenal Ulcer; H. pylori Infection; Gastric Ulcer; Gastroesophageal Reflux Disease; Erosive Esophagitis; Zollinger-Ellison Syndrome.

Track PREVACID with TheraRadar Pro

Watchlist alerts, full database access, CSV exports across 14,000+ drugs.

Upgrade to Pro

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.