Genetic Determinants of the Response to Salbutamol Among Asthma Patients

The response to salbutamol varies greatly among individuals. Data from previous studies indicate that some of the variability is accounted for by genetic polymorphisms in the gene encoding for the adrenoceptor subtype β2. The current study was designed to evaluate variability in the response to salbutamol among recently diagnosed patients who have not been treated by β2 agonists or...

Date First Received: September 11, 2005

Last Updated: March 17, 2008

Verified by: Hadassah Medical Organization, March 2008

Clinical Trial Phase: N/A | Start Date: August 1999

Overall Status: Recruiting

Estimated Enrollment: 150

Brief Summary

Official Title: “Evaluation of Genetic Factors That May Account for Variability in the Response to Salbutamol Among Patients Suffering From Asthma”

Condition Keyword(s):

Intervention(s):

The response to salbutamol varies greatly among individuals. Data from previous studies indicate that some of the variability is accounted for by genetic polymorphisms in the gene encoding for the adrenoceptor subtype β2. The current study was designed to evaluate variability in the response to salbutamol among recently diagnosed patients who have not been treated by β2 agonists or corticosteroids.

Lung function tests will be performed prior to and following a single dose administration of salbutamol through inhalation. Additional pharmacodynamic indices will be monitored including pulse and blood pressure. Three samples of plasma will be drawn for the evaluation of salbutamol plasma concentration.

Study Type: Interventional

Study Design: Non-Randomized, Open Label, Uncontrolled, Single Group Assignment, Pharmacokinetics/Dynamics Study

Intervention(s) in this Clinical Trial

  • Drug: Albuterol

Outcome Measures for this Clinical Trial

Primary Measures

  • Change in lung function tests after salbutamol inhalation
  • Change in blood pressure and pulse after salbutamol inhalation

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • 18 years and older
  • Recently diagnosed as asthmatic

Exclusion Criteria:

  • Current treatment by β2 agonist
  • Current treatment by corticosteroids
  • Acute asthma attack

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Sponsor Information

Lead Sponsor: Hadassah Medical Organization

Overall Clinical Trial Officials and Contacts

Yoseph Caraco, MD Principal Investigator Hadassah Medical Organization, Jerusalem, Israel  

Overall Contact: Yoseph Caraco, MD 00 972 2 6778584 caraco@hadassah.org.il

Additional Information

Information obtained from ClinicalTrials.gov on September 05, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00162396

Study ID Number: yc195511-HMO-CTIL

ClinicalTrials.gov Identifier: NCT00162396

Health Authority: Israel: Israeli Health Ministry Pharmaceutical Administration

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