Effect of GABAB Agonist on Visceral Hyperalgesia in NCCP patientsChinese?

The effect of baclofen (GABAB agonist), diltiazem (muscle relaxant) and placebo will be compared in a double-blinded randomized study for the treatment of NCCP. Cerebral cortical, brainstem and spinal evoked potentials before and after treatment will be evaluated. Results of this study will shed lights on pathogenesis and treatment of NCCP in Chinese.We hypothesize that Baclofen alleviates...

Date First Received: September 9, 2005

Last Updated: March 25, 2008

Verified by: Chinese University of Hong Kong, March 2008

Clinical Trial Phase: N/A | Start Date: November 2004

Overall Status: Terminated

Estimated Enrollment: 60

Brief Summary

Official Title: “Is Visceral Hyperalgesia the Culprit of Noncardiac Chest Pain in Chinese? Part 2: Effect of GABAB Agonist on Visceral Hyperalgesia in NCCP Patients”

Condition Keyword(s):

Intervention(s):

The effect of baclofen (GABAB agonist), diltiazem (muscle relaxant) and placebo will be compared in a double-blinded randomized study for the treatment of NCCP. Cerebral cortical, brainstem and spinal evoked potentials before and after treatment will be evaluated. Results of this study will shed lights on pathogenesis and treatment of NCCP in Chinese.We hypothesize that Baclofen alleviates visceral hyperalgesia in NCCP patients by suppressing afferent sensory pathway.

Study Type: Interventional

Study Design: Treatment, Randomized, Double-Blind, Placebo Control, Parallel Assignment, Safety Study

Intervention(s) in this Clinical Trial

  • Drug: Baclofen, Diltiazem

Outcome Measures for this Clinical Trial

Primary Measures

  • Esophageal sensory and pain thresholds

Secondary Measures

  • Symptom severity of chest pain at the end of treatment
  • Evoked potential responses

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • Consecutive patients with monthly angina-like chest pain and negative coronary angiogram or scintigraphy
  • Age between 18-70
  • Gastroesophageal reflux disease
  • Psychiatric illness
  • Cerebrovascular accident
  • Active peptic ulceration
  • Heart failure or cardiac bradyarrhythmia
  • Epilepsy
  • Pregnancy or lactating female
  • Previous hypersensitivity to muscle relaxant

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: 70 Years

Clinical Trial Sponsor Information

Lead Sponsor: Chinese University of Hong Kong

Overall Clinical Trial Officials and Contacts

Justin CY CU, MD Principal Investigator Chinese University of Hong Kong  

Additional Information

Information obtained from ClinicalTrials.gov on July 02, 2009

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00164801

Study ID Number: NPB study

ClinicalTrials.gov Identifier: NCT00164801

Health Authority: Hong Kong: Department of Health

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