RT Journal Article T1 First-in-human phase I clinical trial of a TLR4-binding DNA aptamer, ApTOLL: Safety and pharmacokinetics in healthy volunteers A1 Hernández Jiménez, Macarena A1 Martín-Vílchez, Samuel A1 Ochoa, Dolores A1 Mejía-Abril, Gina A1 Román, Manuel A1 Camargo-Mamani, Paola A1 Luquero-Bueno, Sergio A1 Jilma, Bernd A1 Moro Sánchez, María Ángeles A1 Fernández Gómez-Chacón, Gerónimo Félix A1 Piñeiro, David A1 Ribó, Marc A1 González, Víctor M A1 Lizasoaín Hernández, Ignacio A1 Abad-Santos, Francisco AB ApTOLL is an aptamer that antagonizes Toll-like receptor 4 and improves functional outcomes in models of ischemic stroke and myocardial infarction. The aim of this study was to characterize the safety and pharmacokinetics of ApTOLL in healthy volunteers. A first-in-human dose-ascending, randomized, placebo-controlled phase I clinical trial to assess safety and pharmacokinetics of ApTOLL (30-min infusion intravenously) was performed in 46 healthy adult male volunteers. The study was divided into two parts: part A included seven single ascending dose levels, and part B had one multiple dose cohort. Safety and pharmacokinetic parameters were evaluated. No serious adverse events or biochemistry alterations were detected at any dose nor at any administration pattern studied. Maximum concentration was detected at the end of the infusion and mean half-life was 9.3 h. Interestingly, exposure increased in the first four levels receiving doses from 0.7 mg to 14 mg (AUC of 2,441.26 h∗ng/mL to 23,371.11 h∗ng/mL) but remained stable thereafter (mean of 23,184.61 h∗ng/mL after 70 mg). Consequently, the multiple dose study did not show any accumulation of ApTOLL. These results show an excellent safety and adequate pharmacokinetic profile that, together with the efficacy demonstrated in nonclinical studies, provide the basis to start clinical trials in patients. PB Cell Press YR 2022 FD 2022-03-09 LK https://hdl.handle.net/20.500.14352/113553 UL https://hdl.handle.net/20.500.14352/113553 LA eng NO Hernández-Jiménez M, Martín-Vílchez S, Ochoa D, Mejía-Abril G, Román M, Camargo-Mamani P, Luquero-Bueno S, Jilma B, Moro MA, Fernández G, Piñeiro D, Ribó M, González VM, Lizasoain I, Abad-Santos F. First-in-human phase I clinical trial of a TLR4-binding DNA aptamer, ApTOLL: Safety and pharmacokinetics in healthy volunteers. Mol Ther Nucleic Acids. 2022 Mar 9;28:124-135. doi: 10.1016/j.omtn.2022.03.005. PMID: 35402075; PMCID: PMC8938885. DS Docta Complutense RD 21 abr 2025