NCT03823677

Brief Summary

This study analyses both Protein Expression and emotional alterations during hypobaric hypoxia in volunteers of different groups.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
250

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2018

Longer than P75 for not_applicable

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

July 1, 2018

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

January 7, 2019

Completed
23 days until next milestone

First Posted

Study publicly available on registry

January 30, 2019

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2022

Completed
Last Updated

May 17, 2022

Status Verified

May 1, 2022

Enrollment Period

3.8 years

First QC Date

January 7, 2019

Last Update Submit

May 16, 2022

Conditions

Outcome Measures

Primary Outcomes (5)

  • Protein Expression before hypoxia

    proteomic profiling of Serum by 2D-gels. All Proteins present in the sample will be identified by proteomics

    Measurement immediately 1 minute before of hypoxia/experiment

  • Protein Expression after hypoxia

    proteomic profiling of Serum by 2D-gels. All Proteins present in the sample will be identified by proteomics

    Measurement immediately and at termination (i.e., 1 minute after) of hypoxia/experiment

  • Emotional assessment tears

    Emotional tears test

    Measurement starts immediately with hypoxia in the pressure chamber. duration 10 minutes

  • Emotional assessment

    Emotional stroop test; Williams, J. M. G., Mathews, A., \& MacLeod, C. (1996). The emotional Stroop task and psychopathology. Psychological Bulletin, 120, 3-24.

    Measurement in the pressure chamber after tears test (i.e. 10 minutes after start). duration 10 minutes

  • Emotional assessment mood

    Emotional mood test, POMS mood score. Shukitt-Hale, B., Banderet, L.E., \& Lieberman, H.R. (1998). Elevation-dependent symptom, mood, and performance changes produced by exposure to hypobaric hypoxia, The International Journal of Aviation Psychology, 8, 319-334,

    Measurement in the pressure chamber after stroop test (i.e. 20 minutes after start). duration 10 minutes

Study Arms (15)

control group 15

NO INTERVENTION

Protein expression and emotional test 15 minutes normoxia Interventions: Blood drawing 1 Minute before and 1 Minute after the pressure chamber Phase for Proteomic profiling with 2D-gels Emotional tests (tears, stroop, mood) during the pressure chamber phase

control group 30

NO INTERVENTION

30 minutes normoxia Interventions: Blood drawing 1 Minute before and 1 Minute after the pressure chamber Phase for Proteomic profiling with 2D-gels Emotional tests (tears, stroop, mood) during the pressure chamber phase

control group 60

NO INTERVENTION

60 minutes normoxia Interventions: Blood drawing 1 Minute before and 1 Minute after the pressure chamber Phase for Proteomic profiling with 2D-gels Emotional tests (tears, stroop, mood) during the pressure chamber phase

hypoxia 5000ft group 15

EXPERIMENTAL

Intervention: 15 minutes hypoxia

Procedure: Hypoxia

hypoxia 5000ft group 30

EXPERIMENTAL

Intervention: 30 minutes hypoxia

Procedure: Hypoxia

hypoxia 5000ft group 60

EXPERIMENTAL

Intervention: 60 minutes hypoxia

Procedure: Hypoxia

hypoxia 8000ft group 15

EXPERIMENTAL

Intervention: 15 minutes hypoxia

Procedure: Hypoxia

hypoxia 8000ft group 30

EXPERIMENTAL

Intervention: 30 minutes hypoxia

Procedure: Hypoxia

hypoxia 8000ft group 60

EXPERIMENTAL

Intervention: 60 minutes hypoxia

Procedure: Hypoxia

hypoxia 10000ft group 15

EXPERIMENTAL

Intervention: 15 minutes hypoxia

Procedure: Hypoxia

hypoxia 10000ft group 30

EXPERIMENTAL

Intervention: 30 minutes hypoxia

Procedure: Hypoxia

hypoxia 10000ft group 60

EXPERIMENTAL

Intervention: 60 minutes hypoxia

Procedure: Hypoxia

hypoxia 15000ft group 15

EXPERIMENTAL

Intervention: 15 minutes hypoxia

Procedure: Hypoxia

hypoxia 15000ft group 30

EXPERIMENTAL

Intervention: 30 minutes hypoxia

Procedure: Hypoxia

hypoxia 15000ft group 60

EXPERIMENTAL

Intervention: 60 minutes hypoxia

Procedure: Hypoxia

Interventions

HypoxiaPROCEDURE

hypoxia

hypoxia 10000ft group 15hypoxia 10000ft group 30hypoxia 10000ft group 60hypoxia 15000ft group 15hypoxia 15000ft group 30hypoxia 15000ft group 60hypoxia 5000ft group 15hypoxia 5000ft group 30hypoxia 5000ft group 60hypoxia 8000ft group 15hypoxia 8000ft group 30hypoxia 8000ft group 60

Eligibility Criteria

Age18 Years - 65 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Helathy

You may not qualify if:

  • Ear problems

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital of Cologne

Cologne, North Rhine-Westphalia, 50937, Germany

Location

MeSH Terms

Conditions

Altitude Sickness

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract Diseases

Study Officials

  • Jochen Hinkelbein

    University Hospital of Cologne

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
volunteers
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: 15 different Groups are analysed: control Group, 5000ft Group, 8000 ft Group, 10000ft Group and 15000ft Group - all for 15, 30, and 60 minutes.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

January 7, 2019

First Posted

January 30, 2019

Study Start

July 1, 2018

Primary Completion

April 30, 2022

Study Completion

April 30, 2022

Last Updated

May 17, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

Locations