NCT01060969

Brief Summary

To evaluate the additive value of tadalafil given together with Diamox (acetazolamide) in preventing acute mountain sickness in travelers to high altitude areas.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
55

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2006

Longer than P75 for not_applicable

Geographic Reach
1 country

3 active sites

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

January 1, 2006

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

November 3, 2008

Completed
1.2 years until next milestone

First Posted

Study publicly available on registry

February 2, 2010

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2010

Completed
Last Updated

September 10, 2012

Status Verified

September 1, 2012

Enrollment Period

4.6 years

First QC Date

November 3, 2008

Last Update Submit

September 7, 2012

Conditions

Keywords

Acute Mountain SicknesstravellersAcetazolamideTadalafilAcute Mountain Sickness assessed by Lake Louise scoreHigh altitude pulmonary edemaHigh altitude cerebral edema

Outcome Measures

Primary Outcomes (1)

  • Results will be evaluated by using the Lake Louise AMS scoring system

    one month after travel

Study Arms (2)

Acetazolamide

ACTIVE COMPARATOR

acetazolamide 125 mg BID

Drug: Acetazolamide

Acetazolamide and Tadalafil

EXPERIMENTAL

Intervention arm

Drug: Tadalafil and acetazolamide

Interventions

Experimental arm: Tadalafil 20 mg daily + acetazolamide 125 mg BID beginning above 3000 m altitude.

Acetazolamide and Tadalafil

Active comparator arm (control): acetazolamide 125 mg BID beginning above 3000 m altitude

Acetazolamide

Eligibility Criteria

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

You may qualify if:

  • Participant in trekking to high altitude
  • Agreement to sign the informed consent.

You may not qualify if:

  • No agreement to sign informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Center of Geographic Medicine

Tel Litwinsky, Israel

Location

Sheba Medical Ctr.

Tel Litwinsky, Israel

Location

Unknown Facility

Tel Litwinsky, Israel

Location

Related Publications (1)

  • Leshem E, Caine Y, Rosenberg E, Maaravi Y, Hermesh H, Schwartz E. Tadalafil and acetazolamide versus acetazolamide for the prevention of severe high-altitude illness. J Travel Med. 2012 Sep-Oct;19(5):308-10. doi: 10.1111/j.1708-8305.2012.00636.x. Epub 2012 Jul 30.

MeSH Terms

Conditions

Pulmonary EdemaBrain EdemaAltitude Sickness

Interventions

TadalafilAcetazolamide

Condition Hierarchy (Ancestors)

Lung DiseasesRespiratory Tract DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesRespiration Disorders

Intervention Hierarchy (Ancestors)

CarbolinesPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsIndole AlkaloidsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds, 3-RingThiadiazolesThiazolesSulfur CompoundsOrganic ChemicalsAzoles

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of the Center for Travel and Geographic Medicine

Study Record Dates

First Submitted

November 3, 2008

First Posted

February 2, 2010

Study Start

January 1, 2006

Primary Completion

August 1, 2010

Study Completion

August 1, 2010

Last Updated

September 10, 2012

Record last verified: 2012-09

Locations