NCT03192488

Brief Summary

This study seeks to determine whether a simple, single intervention of Cetirizine / Zyrtec® use can improve exercise performance of active individuals when acutely exposed to altitude. For this project, healthy subjects will perform steady state and progressive work rate exercise, endurance performance time trials, and repeated sprint performance time trials in the laboratory at a simulated altitude of 3000m (9900ft) after dosing with 10 mg of Cetirizine or a placebo in a repeated measures design.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
13

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Aug 2017

Shorter than P25 for phase_4

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

First Submitted

Initial submission to the registry

June 16, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 20, 2017

Completed
2 months until next milestone

Study Start

First participant enrolled

August 31, 2017

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 6, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 6, 2018

Completed
2 years until next milestone

Results Posted

Study results publicly available

June 16, 2020

Completed
Last Updated

June 16, 2020

Status Verified

June 1, 2020

Enrollment Period

9 months

First QC Date

June 16, 2017

Results QC Date

May 7, 2019

Last Update Submit

June 2, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Performance Time

    Time to complete 8km cycling time trial

    Performed 60min after pill ingestion

Secondary Outcomes (1)

  • Plasma Histamine Concentrations at Baseline and Post-Exercise

    baseline and immediately post-exercise, same day as pill ingestion

Study Arms (3)

Cetirizine/Hypoxia

EXPERIMENTAL

Subjects orally ingested 10 mg of Cetirizine 60 min before exercising in a normobaric hypoxic environment (14.3% oxygen simulating an altitude of 3,000m/9,000ft).

Drug: CetirizineOther: Hypoxia

Placebo/Normoxia

PLACEBO COMPARATOR

Subjects orally ingested a 10 mg gelatin Placebo 60 min before exercising in a normoxic (room-air) environment (20.9% oxygen).

Drug: Placebo oral capsule

Placebo/Hypoxia

PLACEBO COMPARATOR

Subjects orally ingested a 10 mg Placebo 60 min before exercising in a normobaric hypoxic environment (14.3% oxygen simulating an altitude of 3,000m/9,000ft).

Drug: Placebo oral capsuleOther: Hypoxia

Interventions

Cetirizine tablet 10 mg

Also known as: Zyrtec
Cetirizine/Hypoxia

Gelatin placebo

Placebo/HypoxiaPlacebo/Normoxia
HypoxiaOTHER

Exposure to a 14.3% oxygen environment simulating an altitude of 3,000m/9,000ft

Also known as: altitude, low-oxygen environment
Cetirizine/HypoxiaPlacebo/Hypoxia

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Physically active a minimum of 120 minutes a week, as determined by questionnaire
  • years of age
  • Classified as low risk, based on the modified PAR-Q questionnaire, BMI, and non-smoking status
  • No history of pulmonary disease and pulmonary function classified as normal, as defined by the following measurements being 80% of predicted values: forced vital capacity (FVC), forced expired volume in one second (FEV1) and FEV1/FVC, according to the American Thoracic Society standards.

You may not qualify if:

  • Current smoker
  • Women who are pregnant or could possibly be pregnant
  • BMI \> 25 kg/m2
  • A 'yes' answer to any of the 14 questions on the PAR-Q pre-participation questionnaire
  • History of pulmonary disease or \<80% of predicted FCV, FEV1 and/or FEV1/FVC.
  • A history of renal or liver disease, due to possible interaction effect with Cetirizine
  • Currently taking any prescription or over the counter medications for the treatment of allergies, or taking any of the below listed drugs known to have a moderate or higher interaction effect with Cetirizine:
  • isocarboxazid tranylcypromine bosutinib clobazam crizotinib daclatasvir eliglustat hyaluronidase lomitapide lurasidone ombitasvir/paritaprevir/ritonavir phenelzine ponatinib ritonavir vemurafenib

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Indiana University

Bloomington, Indiana, 47401, United States

Location

MeSH Terms

Conditions

Altitude Sickness

Interventions

CetirizineAltitude

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

HydroxyzinePiperazinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsEnvironmentEcological and Environmental PhenomenaBiological PhenomenaEnvironment and Public Health

Results Point of Contact

Title
Robert Chapman
Organization
Indiana University

Study Officials

  • Robert Chapman, PhD

    Indiana University School of Public Health

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

June 16, 2017

First Posted

June 20, 2017

Study Start

August 31, 2017

Primary Completion

June 6, 2018

Study Completion

June 6, 2018

Last Updated

June 16, 2020

Results First Posted

June 16, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

No IPD plan

Locations