Conditions: Osteoarthritis, Knee
Keywords: Osteoarthritis, Knee Transdermal therapeutic system (TTS) fentanyl Durogesic
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 35
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the efficacy and safety of Transdermal therapeutic system (TTS) fentanyl patches (transdermal patch containing a drug that is put on the skin so the drug will enter the body through the skin) in knee osteoarthritis (disorder, which is seen mostly in older persons, in which the joints become painful and stiff) participants with moderate to severe pain.

Detailed description:
This is an open-label (a medical research study in which participants and researchers are told which treatments the participants are receiving, "unblinded"), single-arm, prospective study (study following participants forward in time) of TTS-fentanyl matrix form in knee osteoarthritis participants. The study consists of 3 phases: a screening phase, an open label treatment phase consisting of 2 periods, and an evaluation phase. The first patch will be applied on the first day of treatment phase by the investigator, and sufficient patches until Day 30 will be provided to the participant with the instructions to apply the patch. The TTS-fentanyl dose will normally be increased, if needed by 12.5 microgram per hour taking into account the daily dose of supplemental paracetamol required by the participant. Efficacy with regard to pain control will be recorded principally by the participant via questionnaires in a daily diary. This record will be used to support more detailed assessments at study visits on Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaire. Participants' safety will be monitored.

Arms:
arm 1: Transdermal therapeutic system (TTS) fentanyl patches releasing at the rate of 12.5 microgram per hour for 3 days. The patches will be replaced every 3 days until 30 days.

Interventions: intervention 1: TTS-fentanyl
Intervention descriptions: intervention 1: None

Protocol document: