From: A randomized, double-blind, placebo-controlled phase III trial of duloxetine in Japanese fibromyalgia patients
Week
Direct effect
Indirect effect
Week 2a
84.3
15.7
Week 4a
83.8
16.2
Week 6a
63.1
36.9
Week 10a
43.2
56.8
Week 14a
41.6
58.4
Endpointb
28.3
71.7