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MigrainePhase 3CLORMIGNCT04726592

Efficacy of CLORazepate for the Treatment of MIGraine Attack in the Emergency Room

A Phase 3 study testing Clorazepate Dipotassium, Ketoprofen and Metoclopramide in people with Migraine and Migraine Without Aura, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to evaluate the efficacy of clorazepate in addition to the usual medication for treating migraine attack in the emergency room Read more about this study

Who is it for?
Ages 18 to 70 years
What is being tested?
Clorazepate Dipotassium, Ketoprofen and Metoclopramide
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
323 participants
Where
1 siteFrance
Study dates
8 Jul 2021to 10 Apr 2024
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age from 18 to 70
  • Patient suffering migraine or probable migraine (diagnosis made by neurologist according to IHCD3)
  • Present migraine attack lasting ≤ 72 hours
  • Headache intensity moderate or severe on the verbal ordinal scale (4 levels: no headache, mild, moderate or severe)
  • Patient requiring parenteral treatment
  • Affiliation to the French Health-care System "sécurité sociale"

Who cannot join

  • abnormalities of neurological exam, seizure, fever (≥ 38°C), and/or SBP≥180 and/or DBP≥110 mmHg
  • suspicion of secondary headache
  • inability to understand the consent or scales
  • pregnancy or breast-feeding
  • known respiratory or liver insufficiency
  • acute alcohol consumption or alcoholism
Show all 13Show fewer
  • myasthenia
  • Patient requiering treatment with sumatriptan SC, particularly in the event of failure of an anti-inflammatory drug at an effective dose taken within 6 hours
  • recent use of benzodiazepines (< 24h diazepam, clonazepam, clorazepate ; < 6h alprazolam, lorazepam, midazolam)
  • recent use of pain killers (< 2h)
  • contraindication to any of the investigational medication
  • contraindication to intravenous access
  • previous participation to this study

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hôpital Lariboisière

    Paris, Île-de-France Region, 75010

Other trials in France

About this study

Official title: Randomized Double Blinded Monocentric Study Evaluating the Efficacy of CLORazepate for the Treatment of MIGraine Attack in the Emergency Room

The purpose of this study is to evaluate the efficacy of clorazepate in addition to the usual medication for treating migraine attack in the emergency room

Read the detailed description

Each patient will receive the usual migraine treatment: IV ketoprofen 100 mg and, if he suffers nausea and/or vomiting, additional IV metoclopramide 10 mg.

Depending on randomization assignment, patient will receive additional placebo (standard treatment arm) or additional IV Clorazepate 20 mg (study arm). The central pharmacy will be responsible for preparing the medications, using a double-blind protocol.

Being tested
Clorazepate Dipotassium, Placebo, Ketoprofen, Metoclopramide
Medical subject headings
Migraine Disorders, Migraine without Aura, Migraine with Aura, Headache

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Clorazepate DipotassiumDrug

    Also called TRANXENE

    Clorazepate Dipotassium : 20 mg intravenous injection

  • PlaceboDrug

    Placebo IV

  • KetoprofenDrug

    Ketoprofen 100 mg IV

  • MetoclopramideDrug

    Metoclopramide 10 mg IV

Study groups in NCT04726592
Study groupRoleWhat they receive
Control armPlacebo comparatorplacebo and standard care : * Placebo IV * Ketoprofen 100 mg IV (if nausea-vomiting) * Metoclopramide 10 mg IV(if nausea-vomiting)
Receives: Drug: Placebo; Drug: Ketoprofen; Drug: Metoclopramide
Experimental armExperimentalclorazepate and standard care : * Clorazepate 20 mg IV * Ketoprofen 100 mg IV (if nausea-vomiting) * Metoclopramide 10 mg IV(if nausea-vomiting)
Receives: Drug: Clorazepate Dipotassium; Drug: Ketoprofen; Drug: Metoclopramide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain relief

    Percentage of patients "pain-relief" 2 hours after administration of the treatment

    Measured: 2 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jan 2021
  2. Study start8 Jul 2021
  3. Primary completion10 Apr 2024
  4. Study completion10 Apr 2024

Why it stopped: It has been determined that continuing with enrollments in this study is no longer justified due to the lack of significant impact on the expected outcomes.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
323 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04726592
Sponsor's protocol ID
P170903J
Acronym
CLORMIG
Status last verified
Oct 2024
First submitted
24 Jan 2021
Last updated
8 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Clorazepate Dipotassium, Ketoprofen and Metoclopramide in people with Migraine and Migraine Without Aura, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 8 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: It has been determined that continuing with enrollments in this study is no longer justified due to the lack of significant impact on the expected outcomes.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain relief (time frame: 2 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Sep 2025.

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