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Drug

Entonox clinical trials

studies test it
8
open now
1
in phase 3
2
first study started
2007

How each study uses Entonox 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 Entonox studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

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Exercise during chemotherapy

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Approvals

The first approval found in each region, with its record

United States
Not in FDA's approval records
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

Entonox
4
50% Oxygen/50% Nitrous oxide premix (Kalinox 170 bar)
2
Kalinox 170 bar
2

Studies by the year they started

8 studies that test it; most in 2007 (3)

Studies that test Entonox, by start year
YearStudies
20073
20081
20132
20191
20241

By phase

A phase 1/2 study counts in both.

Phase 3
2
Phase 4
4
No phase
2

What it is tested for

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

Neoplasms
1
Depression
1
Burns
1

Who runs them

Industry 4 · Other 4

Air Liquide Santé International (4) · Rajavithi Hospital (1) · Sheffield Teaching Hospitals NHS Foundation Trust (1) · University of Oxford (1) · The Royal Bournemouth Hospital (1)

Coming up

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

Tested against it · 1 phase 3 study under way

Entonox is the comparator. A study of two new drugs counts under both.

  • 1Fentanyl · KK Women's and Children's Hospital
  • 1Ropivacaine · KK Women's and Children's Hospital

Studies

Open first, then newest update. How each study uses Entonox 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

As the comparator · 1 — what is tested is compared with Entonox

Codes

What other systems call Entonox · ClinicalTrials.gg INT002229

  • MeSH (NLM) C001147EntonoxOne source ClinicalTrials.gov

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