NCT05086640

Unknown

Evaluation of the Effectiveness of the Local Application of ...

Institut de Formation et de Recherche en Médecine de Montagne Source

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Other study identifiers

Sponsor study identifier

Blisters-stop 2

Study Type

interventional

Estimated enrollment

82

Locations

1 country

Sites

1

Timeline

Study Start

July 30, 2021

Actual (reported)

Primary Completion

August 31, 2021

Actual (reported)

Study Completion

December 31, 2021

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Brief Summary

For more than a decade, worldwide participation in ultra-marathons and ultra-trails (running races longer than the 42.195 km marathon) has been increasing. Although considered benign, blisters are a common problem, with serious consequences and limiting performance. Although blisters are a major factor limiting endurance performance, they are a reason for only 5.8% of ultra-trail runners to quit. While equipment is improving and participants are increasing and intensifying their training, there is no consensus on the prevention of blisters in ultra-trail running, even though it is the number one factor limiting sports performance. There are few prospective interventional studies on the prevention of blisters during outdoor activities. On many running forums, there is the hypothesis that lemon applied to the feet prevents the appearance of blisters. This hypothesis has never been scientifically studied. The investigators hypothesize that the local application of Lemon allows a reduction in the number of blisters on ultra-trail. The objective of this Blisters-stop 2 study is to evaluate the efficacy of local application of Lemon in preventing the appearance of blisters.

Registry Overview

Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.

Recruitment status: unknown
Estimated enrollment: 82 participants
Study completion date: December 31, 2021
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Listed locations: 1 countries · 1 sites

Trial Relationships

Click on a node to explore related trials.

Some registry-reported names shown below are not yet linked in this graph.

Study Timeline

Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.

Study Start
July 30, 2021
Actual (reported)
Primary Completion
August 31, 2021
Actual (reported)
First Submitted
September 3, 2021
Actual (reported)
First Posted
October 21, 2021
Actual (reported)
Study Completion
December 31, 2021
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated: October 21, 2021
Status Verified: May 2021
Last Update Submitted: October 7, 2021

Conditions

Blister of Foot Sport Injury

Outcome Measures

Primary Outcomes (1)

Presence or not of blisters at the end of the ultra-trail or at the time of abandonment.
Blisters on each feet or non
up to 1 week

Secondary Outcomes (5)

Feasibility of the protocole
up to 1 week
Compliance
up to 1 week
Tolerance
up to 1 week
Main locations of residual blisters
up to 1 week
Severity of residual blisters
up to 1 week

Study Arms (2)

Lemon foot

EXPERIMENTAL

Application of Lemon in the Prevention of Blisters on one feet

Other: Lemon foot to prevent blister

Control foot without lemon

NO INTERVENTION

No application of Lemon or any other prevention cream in the Prevention of Blisters on one feet

Interventions

Lemon foot to prevent blisterOther

The investigators make the hypothesis that the local application of Lemon allows a reduction of the number of blisters on ultra-trail.

Lemon foot

Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.

Eligibility Criteria

Age18 Years+

Sexall

Healthy VolunteersYes

Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

Ultra-trail participants with validated registration
Major (≥ 18 years old)

You may not qualify if:

Sponsors & Collaborators

Institut de Formation et de Recherche en Médecine de Montagne
Otherlead

Study Sites (1)

Ifremmont

Chamonix, France

RECRUITING

Corentin Tanné, MDCONTACT0450473105 C.Tanne@ch-sallanches-chamonix.fr

Study Officials

Corentin Tanné
Institut de Formation et de Recherche en Médecine de Montagne
PRINCIPAL INVESTIGATOR

Central Study Contacts

Corentin Tanné, MD

CONTACT

0450473105 C.Tanne@ch-sallanches-chamonix.fr

Study Design

Study Type: interventional
Phase: not applicable
Allocation: RANDOMIZED
Masking: NONE
Purpose: TREATMENT
Intervention Model: PARALLEL
Sponsor Type: OTHER
Responsible Party: SPONSOR

Study Record Dates

First Submitted

September 3, 2021

First Posted

October 21, 2021

Study Start

July 30, 2021

Actual (reported)

Primary Completion

August 31, 2021

Actual (reported)

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Presence of blisters or other skin lesions on the feet 28 days before the race
Amputation of one or two feet
Allergy to lemon
Psychiatric disorders making comprehension impossible
Lack of social security coverage

Contact the study team to confirm eligibility.

Study Completion

December 31, 2021

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated

October 21, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing: Will not share

Source record

Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.

Source: ClinicalTrials.gov.

JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.

Registry identifier: NCT05086640
Data provider: ClinicalTrials.gov
Source updated: 2021-10-21
Normalization version: ctgov-legacy-1

Open registry record

Source retrieved: 2026-10-25 22:20:57 UTC

Locations

FR(1)

Brief Summary

Registry Overview

Trial Relationships

Related Scientific Literature

Study Timeline

Study Start

Primary Completion

First Submitted

First Posted

Study Completion

Conditions

Outcome Measures

Primary Outcomes (1)

Secondary Outcomes (5)

Study Arms (2)

Lemon foot

Control foot without lemon

Interventions

Eligibility Criteria

You may qualify if:

You may not qualify if:

Sponsors & Collaborators

Study Sites (1)

Study Officials

Central Study Contacts

Study Design

Study Record Dates

Data Sharing

Source record

Locations