RT Journal Article T1 Brief Consent Methods Enable Rapid Enrollment in Acute Stroke Trial: Results From the TICH-2 Randomized Controlled Trial. A1 Law, Zhe Kang A1 Appleton, Jason P A1 Scutt, Polly A1 Roberts, Ian A1 Al-Shahi Salman, Rustam A1 England, Timothy J A1 Werring, David J A1 Robinson, Thompson A1 Krishnan, Kailash A1 Dineen, Robert A A1 Laska, Ann Charlotte A1 Lyrer, Philippe A A1 Egea-Guerrero, Juan Jose A1 Karlinski, Michal A1 Christensen, Hanne A1 Roffe, Christine A1 Bereczki, Daniel A1 Ozturk, Serefnur A1 Thanabalan, Jegan A1 Collins, Ronan A1 Beridze, Maia A1 Ciccone, Alfonso A1 Duley, Lelia A1 Shone, Angela A1 Bath, Philip M A1 Sprigg, Nikola A1 TICH-2 Investigators, K1 cerebral hemorrhage K1 humans K1 informed consent K1 logistic models K1 lost to follow-up K1 tranexamic acid AB Seeking consent rapidly in acute stroke trials is crucial as interventions are time sensitive. We explored the association between consent pathways and time to enrollment in the TICH-2 (Tranexamic Acid in Intracerebral Haemorrhage-2) randomized controlled trial. Consent was provided by patients or by a relative or an independent doctor in incapacitated patients, using a 1-stage (full written consent) or 2-stage (initial brief consent followed by full written consent post-randomization) approach. The computed tomography-to-randomization time according to consent pathways was compared using the Kruskal-Wallis test. Multivariable logistic regression was performed to identify variables associated with onset-to-randomization time of ≤3 hours. Of 2325 patients, 817 (35%) gave self-consent using 1-stage (557; 68%) or 2-stage consent (260; 32%). For 1507 (65%), consent was provided by a relative (1 stage, 996 [66%]; 2 stage, 323 [21%]) or a doctor (all 2-stage, 188 [12%]). One patient did not record prerandomization consent, with written consent obtained subsequently. The median (interquartile range) computed tomography-to-randomization time was 55 (38-93) minutes for doctor consent, 55 (37-95) minutes for 2-stage patient, 69 (43-110) minutes for 2-stage relative, 75 (48-124) minutes for 1-stage patient, and 90 (56-155) minutes for 1-stage relative consents (P The use of initial brief consent was associated with shorter times to enrollment, while maintaining good participant retention. Seeking written consent from relatives was associated with significant delays. URL: https://www.isrctn.com; Unique identifier: ISRCTN93732214. YR 2021 FD 2021-12-01 LK http://hdl.handle.net/10668/20202 UL http://hdl.handle.net/10668/20202 LA en DS RISalud RD Apr 17, 2025