Drug

Ranitidine clinical trials

Also written Zantac.

studies test it: 25
open now: 0
in phase 3: 4
first study started: 1996

Counted the way a researcher would: Ranitidine with its salts, dosage forms, brands and biosimilars. Looking for a trial to join? Including related medicines shows more you could take part in.

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How each study uses Ranitidine is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study

Approvals

The first approval found in each region, with its record

United States: 9 Jun 1983 · ZANTAC 300 · NDA 018703 (FDA, Drugs@FDA)
European Union: Not in EMA's list of EU-wide authorisations

From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out

How studies write it

Studies that test it under each name

Name

Ranitidine: 18

Brand

Zantac: 5

Studies by the year they started

23 studies that test it; most in 2006 (3)

Studies that test Ranitidine, by start year
Year	Studies
1996	1
2000	1
2002	2
2003	2
2004	1
2005	2
2006	3
2007	2
2011	1
2012	3
2013	1
2017	1
2018	2
2020	1

By phase

A phase 1/2 study counts in both.

Phase 1: 7
Phase 2: 3
Phase 3: 4
Phase 4: 7
No phase: 4

What it is tested for

Each study’s main condition, where its own words name it, so a study counts once.

Dyspepsia: 2
Poisoning: 1
Neoplasms: 1
Gastroesophageal Reflux: 1
Stroke: 1
Stomach Ulcer: 1
Pneumonia, Ventilator-Associated: 1
HIV Infections: 1
Multiple Sclerosis: 1
Cough: 1
Laryngopharyngeal Reflux: 1
Peptic Ulcer: 1

Who runs them

Industry 9 · Other 16

AstraZeneca (2) · University of Edinburgh (1) · Nova Scotia Health Authority (1) · Mahidol University (1) · Food and Drug Administration (FDA) (1) · Sanofi (1) · GlaxoSmithKline (1) · Vanderbilt University (1)

Often tested with

Tested in the same studies.

Omeprazole (4) · Esomeprazole (4) · Pantoprazole (3) · Chlorpheniramine (2) · Acetaminophen (2) · Diphenhydramine (2) · Vandetanib (1) · Lavoltidine (1)

Related medicines

As reviewed, each with the page that says it.

One of H2 blockers source

Studies

Open first, then newest update. How each study uses Ranitidine is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.

Testing it · 25

See all 25 studies that test Ranitidine →

Given beside what is tested · 15 — Ranitidine is usual care or a partner of the new treatment

As the comparator · 6 — what is tested is compared with Ranitidine

Codes

What other systems call Ranitidine · ClinicalTrials.gg INT008151

MeSH (NLM) D011899RanitidineConfirmed ClinicalTrials.gov, NLM, Wikidata
UNII (FDA) 884KT10YB7RANITIDINEConfirmed FDA, NLM, Wikidata
RxNorm 9143Confirmed FDA, Wikidata
Wikidata Q423037ranitidineConfirmed FDA, NLM, Wikidata
NCI Thesaurus C29412RanitidineOne source FDA
DrugBank DB00863One source Wikidata

System	Code	Name there	Checked by
MeSH (NLM)	D011899	Ranitidine	Confirmed ClinicalTrials.gov, NLM, Wikidata
UNII (FDA)	884KT10YB7	RANITIDINE	Confirmed FDA, NLM, Wikidata
RxNorm	9143	—	Confirmed FDA, Wikidata
Wikidata	Q423037	ranitidine	Confirmed FDA, NLM, Wikidata
NCI Thesaurus	C29412	Ranitidine	One source FDA
DrugBank	DB00863	—	One source Wikidata

Also registered as ranitidine hydrochloride (UNII BK76465IHM · RxNorm 203136).

“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.