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Study to Test the Effectiveness of Controlled-Release OROS® Hydromorphone HCl Compared to Placebo in Patients With Chronic Low Back Pain

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Mallinckrodt
ClinicalTrials.gov Identifier:
NCT00549042
First received: October 23, 2007
Last updated: March 20, 2012
Last verified: March 2012