Feasibility and acceptability of transcranial stimulation in obsessive–compulsive symptoms (FEATSOCS): study protocol for a randomised controlled trial of transcranial direct current stimulation (tDCS) in obsessive–compulsive disorder (OCD)

Table 1 Table of study assessments

Conducted By	Test	Screening (completed by Clinician)	In centre assessments for each of 3 sessions (Sham, OFC, SMA) Day 1										In centre assessments for each of 3 sessions (Sham, OFC, SMA) Day 2									Follow-up via telephone^b
Conducted By	Test	Screening (completed by Clinician)	Baseline	Intervention	1 h	2 h	3 h	4 h	Intervention	1 h	2 h	4 h	0 h	Intervention	1 h	2 h	4 h	Intervention	1 h	2 h	4 h	24 h	7 days	14 days
DR	DSM-5	X
DR/RA	Y-BOCS	X	X										X									X	X	X
DR/RA	Y-BOCS Challenge		X		X	X		X		X	X	X	X		X	X	X		X	X	X	X	X	X
RA	CGIS		X										X									X	X	X
DR/RA	MÅDRS	X	X																			X	X	X
RA	BIS		X
RA	SDS		X																			X	X	X
RA	CANTAB		X				X
RA ^a	AEs		X		X	X		X		X	X	X			X	X	X		X	X	X	X	X	X
DR	Clinical Review		X					X			X		X				X			X
	Time (min)	60	105	20	15	15	30	30	20	15	15	30	30	20	15	15	20	20	15	15	30	15	15	15

^aThe RA will complete the AE questionnaire with participants and refer to the clinician if necessary
^bThere will be an additional telephone call at 28 days only after the patients have completed the last arm of the intervention. The assessments will be the same as the previous phone calls (prior to this, day 28 will be day 1 of the next intervention arm that the patient completes)

ISSN: 2055-5784