Screening visit/SCR | Evaluation visit/EVA | DBS surgery/DBS | Randomization visit/RAN | Follow-up visit 1/FU1 | Follow-up visit 2/FU2 | Follow-up visit 3/FU3 | Follow-up visit 4/FU4 | Follow-up visit 5/FU5 | |
---|---|---|---|---|---|---|---|---|---|
timeline (weeks) | −14 (+/−1) | − 10 (+/− 1) | −6 (+/− 1) | 0 | +4 (+/− 1) | + 12 (+/− 1) | + 16 (+/− 1) | + 24 (+/− 1) | + 48 (+/− 1) |
Interventions | |||||||||
BoNT test injection | X | ||||||||
DBS surgery | X | ||||||||
Testing of stimulation (side) effects | X | ||||||||
DBS setting/sham stimulationa | X | X | |||||||
Blind BoNT/placebo injectiona | X | X | |||||||
Unblind neurostimulation | X | X | |||||||
Randomization | X | ||||||||
Data set | |||||||||
Informed consent | X | ||||||||
Inclusion/exclusion criteria | X | X | |||||||
Medical history | X | ||||||||
Concurrent medication | X | X | X | X | X | X | |||
TWSTRS | X | X | X | X | X | X | X | X | |
Tsui Rating Scale | X | X | X | X | X | X | X | X | |
Bain Tremor Rating | X | X | X | X | X | X | X | X | |
GCI | X | X | X | X | X | X | X | X | |
CDQ-24 | X | X | X | X | |||||
SF-36 | X | X | X | X | |||||
EQ-5D | X | X | X | X | |||||
MDRS | X | X | X | (X) | |||||
BDI | X | X | X | (X) | |||||
BPRS | X | X | X | (X) | |||||
Video recording | (X) | (X) | X | (X) | (X) | (X) | X | X | |
Questionnaire on DBS procedure | X | ||||||||
Postoperative control of electrode position | X | ||||||||
AE | X | X | X | X | X | ||||
DBS settings | X | X | X | X | X | X |