Research Article

Open-Label Placebo Trial among Japanese Patients with Chronic Low Back Pain

Table 3

Responders at week 3 and week 12.

Number of responders (%)Number of responders (%)
Week 3 (n = 26) valueWeek 12 (n = 24) value

RMDQ (∆ ≤ −2)TAU11 (42.3%)1.0013 (54.2%)0.56
TAU + OLP11 (42.3%)15 (62.5%)

NRS (∆ ≤ −2)TAU7 (26.9%)0.517 (29.2%)0.23
TAU + OLP5 (19.2%)11 (45.8%)

A responder is defined as one that shows changes of at least 2-point from the baseline value at each follow-up point.