MethOxyflUraNe at moderaTe High AltItudes for PAIN Management

NCT ID: NCT03849027

Last Updated: 2019-02-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-05-31

Study Completion Date

2019-12-31

Brief Summary

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A randomised, double-blind, cross-over study to assess the analgesic effect of methoxyflurane at moderate high altitudes in a wilderness field setting.

Phase IV, randomised, double-blind, cross-over clinical trial to evaluate the analgesic effect of methoxyflurane at moderate high altitudes in a wilderness field setting, in 24 healthy volunteers

Detailed Description

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Primary outcome: To assess the analgesic efficacy of inhaled methoxyflurane at moderate high altitudes in a wilderness setting.

Secondary outcomes: To assess the comparative safety and adverse events with inhaled methoxyflurane at moderate high altitudes in a wilderness setting.

Conditions

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Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

randomised, controlled, cross-over
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors
double-blind

Study Groups

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Methoxyflurane

Inhaled methoxyflurane once-off dose of 3 ml will be administered via the inhaler at each dosing visit .

Inhaled methoxyflurane will be administered using the disposable field inhaler device (Penthrop®).

Group Type EXPERIMENTAL

Methoxyflurane

Intervention Type DRUG

Inhaled methoxyflurane will be administered using the disposable field inhaler device (Penthrop®) according to the recommended dosing schedule.

Sham Methoxyflurane

The sham inhaler will have one droplet of methoxyflurane applied to the outer surface, but no drug in the vaporization chamber to give off the prominent odour with no analgesic effect, partially blinding the participants to the test

Group Type SHAM_COMPARATOR

Placebo

Intervention Type DRUG

The sham inhaler will have one droplet of methoxyflurane applied to the outer surface, but no drug in the vaporization chamber to give off the prominent odour with no analgesic effect, partially blinding the participants to the test.

Interventions

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Methoxyflurane

Inhaled methoxyflurane will be administered using the disposable field inhaler device (Penthrop®) according to the recommended dosing schedule.

Intervention Type DRUG

Placebo

The sham inhaler will have one droplet of methoxyflurane applied to the outer surface, but no drug in the vaporization chamber to give off the prominent odour with no analgesic effect, partially blinding the participants to the test.

Intervention Type DRUG

Other Intervention Names

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Penthrop Penthrox Sham methoxyflurane

Eligibility Criteria

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Inclusion Criteria

1. Male or female between 18 and 65 years of age (inclusive).
2. Able to provide informed consent and comply with study-related procedures

Exclusion Criteria

1. History of diabetes
2. Renal or hepatic disease or impairment (defined as a value exceeding the maximum reference range)
3. Chronic or nociplastic pain
4. Chronic fatigue syndrome
5. Chronic/regular use of analgesic medications
6. Personal or familial history of malignant hyperthermia
7. Personal or familial history of anaesthesia-induced rhabdomyolysis
8. Personal history of anaesthesia volatile-induced hepatitis or drug induced liver injury
9. Recent volatile anaesthesia (within 6 months)
10. History of significant altitude-related illness
11. Significant underlying medical condition which precludes gentle exercise at moderate high altitude (\<2500 m ASL) as determined by the investigators
12. Hypersensitivity to Penthrox/Penthrop®, methoxyflurane or any fluorinated anaesthetic.
13. Concurrent treatment with CYP 2A6 or CYP 2E1 enzyme inducers (such as: phenobarbital, rifampicin, alcohol or isoniazid)
14. Pregnancy
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Cape Town

OTHER

Sponsor Role lead

Responsible Party

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Ross Hofmeyr

Prof

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ross Hofmeyr

Role: PRINCIPAL_INVESTIGATOR

University of Cape Town

Locations

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University of Cape Town Department of Anaesthesia & Perioperative Medicine

Cape Town, Western Cape, South Africa

Site Status

Countries

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South Africa

Central Contacts

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Ross Hofmeyr

Role: CONTACT

+2721 650 4957

Nicky Kramer

Role: CONTACT

+2721 650 4196

Facility Contacts

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Ross Hofmeyr

Role: primary

+2721 650 4957

Nicky Kramer

Role: backup

+2721 650 4196

Other Identifiers

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MOUNTAIN-PAIN

Identifier Type: -

Identifier Source: org_study_id

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