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Drug

Ensitrelvir clinical trials

Also written S-217622.

studies test it
8
open now
1
in phase 3
3
first study started
2021

How each study uses ensitrelvir 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

Get an email when these change. Save the ensitrelvir studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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Approvals

The first approval found in each region, with its record

United States
29 May 2026 · XOCOVA · NDA 220442 (FDA, Drugs@FDA)
European Union
18 Sept 2026 · Zokovea · EMEA/H/C/006063 (EMA)

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

Ensitrelvir
5

Development codes

S-217622
5

Studies by the year they started

8 studies that test it; most in 2022 (4)

Studies that test ensitrelvir, by start year
YearStudies
20211
20224
20231
20242

By phase

A phase 1/2 study counts in both.

Phase 1
3
Phase 2
2
Phase 3
3

What it is tested for

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

COVID-19
4
Post-Acute COVID-19 Syndrome
1

Who runs them

Industry 5 · Other 3

Shionogi (5) · Timothy Henrich (1) · University of Oxford (1) · University of Minnesota (1)

Often tested with

Tested in the same studies.

Nirmatrelvir and ritonavir drug combination (1) · Nitazoxanide (1) · Molnupiravir (1) · Nirmatrelvir (1) · Hydroxychloroquine (1) · Antibodies, Monoclonal (1) · Fluoxetine (1) · Sotrovimab (1)

Coming up

From the study records. Dates are the sponsors’ own estimates and often move.

Reaching primary completion within a year · 1

Studies that test ensitrelvir.

Studies

Open first, then newest update. How each study uses ensitrelvir 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 · 8

Codes

What other systems call ensitrelvir · ClinicalTrials.gg INT001840

  • MeSH (NLM) C000722354ensitrelvirConfirmed ClinicalTrials.gov, NLM
  • UNII (FDA) PX665RAA3HENSITRELVIRConfirmed FDA, NLM, Wikidata
  • Wikidata Q110798570ensitrelvirConfirmed FDA, NLM, Wikidata
  • NCI Thesaurus C188613EnsitrelvirOne source FDA
  • DrugBank DB18834One source Wikidata

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