This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Study of Medication Compliance - a Comparison of Patients in Pain Management and Pre-surgical Patients

This study has been completed.
Information provided by (Responsible Party):
Christoph Maier, Ruhr University of Bochum Identifier:
First received: June 19, 2012
Last updated: June 20, 2012
Last verified: June 2012
In this study medication compliance regarding current drug use is investigated using toxicological analyzes in two patient groups: patients from a pain management department and pre-surgical control patients. The aim is to explore the incidence of concealed and feigned substances and to determine the respective substance classes. Expecting that noncompliance is higher in the pain patient group, the investigators want to identify clinical risk factors for noncompliant drug report.


Study Type: Observational
Study Design: Observational Model: Case-Crossover
Time Perspective: Prospective
Official Title: Toxicological Analyses of Blood and Urine Samples in Pain Patients and Pre-surgical Control Patients to Investigate Incidences of Concealed and Feigned Substances

Further study details as provided by Christoph Maier, Ruhr University of Bochum:

Biospecimen Description:
serum, urine

Enrollment: 343
Study Start Date: May 2010
Study Completion Date: October 2011
Primary Completion Date: September 2011 (Final data collection date for primary outcome measure)
pain patients
patients from a specific pain management department, patients with long duration of pain, mostly insufficiently treated pain
pre-surgical patients
patients from a surgical outpatient department with current pain


Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
pain management and surgical outpatient department of a University hospital

Inclusion Criteria:

  • provided informed consent
  • current pain

Exclusion Criteria:

  • no taking of blood sample possible
  • no consent with toxicological analyzes
  • insufficient comprehension of the German language
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01625065

University hospital Bergmannsheil
Bochum, Germany
Sponsors and Collaborators
Ruhr University of Bochum
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Christoph Maier, Prof. Dr. med., Ruhr University of Bochum Identifier: NCT01625065     History of Changes
Other Study ID Numbers: Medi-3889-10
Study First Received: June 19, 2012
Last Updated: June 20, 2012

Keywords provided by Christoph Maier, Ruhr University of Bochum:
medication compliance
toxicological analyzes
pain patients
opioid misuse
patients with current pain processed this record on August 16, 2017