Case Control Study of Non Viral Hepatitis Relating to Herbal Drug Use in the Emergency Department

NCT00201578 | Unknown

• 1 other identifier: 9361701120
• Study Type: observational
• Target: N/A
• Locations: 1 country
• Sites: 1

Brief Summary

The use of traditional Chinese herbal medicine and various forms of alternative medicine to maintain health among the Chinese ethnic group has had a long history and has been deeply rooted in the Chinese way of living for centuries. It has been a general belief that these therapies consist of "natural" substances and are less toxic than their western synthetic drug counterparts. However, recent reports of side effects of systemic traditional Chinese medicine, including hypersensitivity, hepatotoxicity, neurotoxicity, cardiovascular toxicity, renal failure, and contact dermatitis, have been increasing. Since there is a high prevalence in the usage of traditional Chinese herbal medicine in Taiwan, this study examines the frequency of patients using herbal medicine whose initial diagnosis in the emergency department (ED) is acute non viral hepatitis. We, the researchers at National Taiwan University Hospital, then correlate if the cause of hepatitis is related to the use of these herbal drugs by taking a detailed history of medication or herbs used and by verifying the contents by chemical analysis of the "medications" used. To our knowledge, this is the first study in examining the relationship between non viral hepatitis and the use of herbal drugs prior to arriving at the ED. We expect to prove adverse effects of these substances, especially hepatitis, is the cause for requiring emergency care. Our study design is a prospective, density sampling case control study in which one hundred patients with non viral hepatitis will be recruited as our case. We use a questionnaire designed by the investigator in the survey of demographic background, education, and income status of the cases, as well as the frequency of use of the drug, total dosage used, where the drug was purchased, what the drug is used for, and whether they know of any adverse effect that the drug might have. If they had taken the drug within three months prior to this emergency visit, then they are asked to bring the drug in for examination. Examination of the drug includes the use of high performance liquid chromatography (HPLC) and if necessary, inductively coupled plasma mass spectrometry (ICP mass). In contrast, our control group consists of subjects that are admitted to the ED due to trauma or fracture. For each case, they are matched with two subjects in the control group in both gender and age. They should also arrive within two days after the arrival of the case. All cases and controls are screened for viral hepatitis and serology must be negative before entering the study. The questionnaire is given to both groups. If more than one control is eligible to enter the study, then the control is chosen by a random draw in a hat. After this use of density sampling, we collect the data and logistic regression is used for analysis.

Conditions

Acute Hepatitis

Keywords

Herbal Drugs; Alternative medicine

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Abnormal liver function test
• Hepatitis other than viral induced

You may not qualify if:

• Under age 18 years old
• Viral hepatitis

Sponsors & Collaborators

• National Taiwan University Hospital: lead

Study Sites (1)

National Taiwan University Hospital

Taipei, 100, Taiwan

RECRUITING

Study Officials

• Jung D Wang

  National Taiwan University

  STUDY DIRECTOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: OTHER
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: September 12, 2005
• First Posted: September 20, 2005
• Last Updated: April 27, 2006

Record last verified: 2005-01

Locations

TW (1)