Fig. 2From: Challenges recruiting to a proof-of-concept pharmaceutical trial for a rare disease: the trigeminal neuralgia experienceDetailed breakdown of prescreening and screening results from the London cohort. No pain = TN diagnosis but no current pain (on or off treatment); mild pain = score of 1–3; moderate pain = score of 4–7; severe pain = score of 7–10 [21]. aIncludes Fridericia’s formula requirements (< 450 ms in two of three electrocardiograms done at screening). Abbreviations: CBZ carbamazepine, F female, GABA gabapentin, LAM lamotrigine, M male, MS multiple sclerosis, OXC oxcarbazepine, PG pregabalin, TN trigeminal neuralgiaBack to article page