PAIN OUT: Improvement in Postoperative PAIN OUTcome (PAIN-OUT)
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ClinicalTrials.gov Identifier: NCT02083835 |
Recruitment Status :
Recruiting
First Posted : March 11, 2014
Last Update Posted : February 10, 2022
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Condition or disease |
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Post-operative Pain |
PAIN OUT offers a large registry as well as a system for benchmarking and feedback of outcome quality and decision support in acute pain conditions. It collects demographic, clinical and outcome data, using a validated assessment tool available in multiple languages.
The registry part of the project aims at performing population-based research. Furthermore, its infrastructure allows for the conduct of prospective studies comparing the effectiveness of processes of care.
The benchmark part of the project provides the medical community with a unique, user-friendly system to improve treatment of patients with postoperative pain. A web-based information system, featuring two main functions, was developed:
- a feedback and benchmarking system which provides participating sites with continuously updating data and analyses about the quality of care they provide compared to other institutions and allows identification of best clinical practice.
- a knowledge library which provides clinicians with easily accessible and regularly updated summaries of evidence-based recommendations tailored to specific post-operative situations.
PAIN OUT is leading and overseeing sub-projects in Mexico, China, a number of European countries. Additional countries will join over time. The sub-projects are scheduled to take place over a period of two years. The design is an uncontrolled pre- post-study, in which approximately 10 hospitals from each country participate. The project consists of collecting data (processes and patient reported outcomes) at baseline from 1-3 wards in participating hospitals; analyzing of the findings, selecting and implementing measures for change in practice; carrying out another round of data collection; summerizing the findings and discussing options for further work.
Study Type : | Observational [Patient Registry] |
Estimated Enrollment : | 200000 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Target Follow-Up Duration: | 12 Months |
Official Title: | Improvement in Postoperative Pain Outcome |
Actual Study Start Date : | January 2009 |
Estimated Primary Completion Date : | December 2030 |
Estimated Study Completion Date : | December 2030 |
Group/Cohort |
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post-surgical patients
post-surgical patients > 18 years
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pediatric patients post-op day 1
pediatric patients <18 years on post-op day 1 (sub-project QUIPSI - PAIN OUTinfant)
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- Assessment of postoperative pain treatment [ Time Frame: first postoperative day ]
- patients' perception of pain treatment outcome [ Time Frame: first postoperative day ]
- worst pain since surgery
- least pain since surgery
- time in pain
- interference of pain with activities
- affect of pain on mood and emotions
- pain therapy side effects
- pain relief
- wish for more treatment
- information on treatment
- participation in decisions
- satisfaction
- non-medical treatment methods
- pre-hospital existence of pain

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Ages Eligible for Study: | 4 Years and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Probability Sample |
Inclusion Criteria:
- >= 18 years or >= 4 years for sub-project QUIPSI/PAIN OUTinfant
- patient is post-op day 1
- patient is at least 6 hours on the ward
- patient has given consent
Exclusion Criteria:
- patient cannot communicate
- patient is cognitively impaired
- patient is asleep
- patient is too ill
- patient does not want to fill in the questionnaire

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02083835
Contact: Winfried Meissner, Prof. Dr. | +49 3641 9323353 | winfried.meissner@med.uni-jena.de |
Germany | |
Jena University Hospital | Recruiting |
Jena, Germany, 07747 | |
Contact: Winfried Meissner, Prof. +49 3641 9323353 |
Study Director: | Winfried Meissner, Prof. | University of Jena |
Publications of Results:
Other Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Prof. Dr. Winfried Meissner, apl. Prof. Dr. med. Winfried Meissner, University of Jena |
ClinicalTrials.gov Identifier: | NCT02083835 |
Other Study ID Numbers: |
FP7 223590 |
First Posted: | March 11, 2014 Key Record Dates |
Last Update Posted: | February 10, 2022 |
Last Verified: | January 2022 |
post-operative pain paitent reported outcomes quality improvement |
Pain, Postoperative Postoperative Complications Pathologic Processes Pain Neurologic Manifestations |