Proof of Concept study of the efficacy and tolerability of a 4-week treatment with F13640 in patients in whom the adaptation of opioid therapy of cancer pain has failed. A prospective, multinational, multicentre, randomised, double-blind, placebo-co
Proof of Concept study of the efficacy and tolerability of a 4-week treatment with F13640 in patients in whom the adaptation of opioid therapy of cancer pain has failed. A prospective, multinational, multicentre, randomised, double-blind, placebo-co
Proof of Concept study of the efficacy and tolerability of a 4-week treatment with F13640 in patients in whom the adaptation of opioid therapy of cancer pain has failed. A prospective, multinational, multicentre, randomised, double-blind, placebo-controlled study.