NCT01135888

Brief Summary

Because of their lack of sweat glands individuals with hypohidrotic ectodermal dysplasia (HED) are at particular risk of life-threatening hyperthermia during exercise in a warm environment. In this study, the effects of physical exercise are investigated in boys and male adolescents with X-chromosomally inherited HED as well as age-matched controls, who undergo standardized exertion on a bicycle ergometer at ambient temperatures of 25°C and 30°C. Body core temperature during and after ergometry, heart rate, performance, and serum lactate as a marker of metabolic stress are measured. Subjects with HED are expected to show an endangering rise of body temperature in connection with physical exercise. To clarify, whether novel cooling devices may reduce the likelihood of overheating, the effects of such devices are evaluated at 30°C.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Apr 2009

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2009

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2010

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

June 2, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

June 3, 2010

Completed
Last Updated

August 19, 2021

Status Verified

August 1, 2021

Enrollment Period

10 months

First QC Date

June 2, 2010

Last Update Submit

August 13, 2021

Conditions

Keywords

hypohidrotic ectodermal dysplasiaexertional hyperthermiacooling device

Study Arms (4)

HED children

HED adolescents

Device: Skin cooling devices

Control children

Control adolescents

Device: Skin cooling devices

Interventions

Cooling vest and cooling bandana

Also known as: Cooline
Control adolescentsHED adolescents

Eligibility Criteria

Age7 Years - 18 Years
Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

subjects with X-chromosomally inherited hypohidrotic ectodermal dysplasia (HED) and age-matched controls

You may qualify if:

  • for patients: hypohidrotic ectodermal dysplasia caused by EDA gene mutations
  • regular fluid intake prior to the investigation
  • written informed consent

You may not qualify if:

  • acute febrile illness
  • acute or chronic heart disease
  • arterial hypertension
  • gastrointestinal disorders
  • implantable electronic devices
  • MRI investigation scheduled for the 5 days subsequent to the study
  • clinical signs or diagnostic findings of dehydration

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Erlangen

Erlangen, Bavaria, 91054, Germany

Location

Related Publications (1)

  • Hammersen JE, Neukam V, Nusken KD, Schneider H. Systematic evaluation of exertional hyperthermia in children and adolescents with hypohidrotic ectodermal dysplasia: an observational study. Pediatr Res. 2011 Sep;70(3):297-301. doi: 10.1203/PDR.0b013e318227503b.

Biospecimen

Retention: SAMPLES WITHOUT DNA

Serum

MeSH Terms

Conditions

Ectodermal Dysplasia 1, Anhidrotic

Condition Hierarchy (Ancestors)

Ectodermal DysplasiaAbnormalities, MultipleCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesSkin AbnormalitiesGenetic Diseases, X-LinkedGenetic Diseases, InbornSkin Diseases, GeneticSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Holm Schneider, MD

    University Hospital Erlangen

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Pediatrics

Study Record Dates

First Submitted

June 2, 2010

First Posted

June 3, 2010

Study Start

April 1, 2009

Primary Completion

February 1, 2010

Study Completion

February 1, 2010

Last Updated

August 19, 2021

Record last verified: 2021-08

Locations