To assess the safety of 2 transdermal formulations of fentanyl (D-TRANS fentanyl with naltrexone transdermal system and Duragesic (fentanyl transdermal system) in patients with chronic pain who were opioid tolerant. [clinicaltrials_resource:5c8b984a8762a8d1de29ed6ee4c3cb03]

Click here to view the journal abstract from the study manuscript.

To assess the safety of 2 transdermal formulations of fentanyl (D-TRANS fentanyl with naltrexone transdermal system and Duragesic (fentanyl transdermal system) in patients with chronic pain who were opioid tolerant. [clinicaltrials_resource:5c8b984a8762a8d1de29ed6ee4c3cb03]

Click here to view the journal abstract from the study manuscript.