PMID- 35485332 OWN - NLM STAT- MEDLINE DCOM- 20220502 LR - 20220607 IS - 2040-2058 (Electronic) IS - 1359-6535 (Linking) VI - 26 IP - 3-5 DP - 2021 May TI - Safety, tolerability, pharmacokinetics, and pharmacodynamics of oral JNJ-64794964, a TLR-7 agonist, in healthy adults. PG - 58-68 LID - 10.1177/13596535211056581 [doi] AB - BACKGROUND: This Phase I, two-part, first-in-human study assessed safety/tolerability and pharmacokinetics/pharmacodynamics of single-ascending doses (SAD) and multiple doses (MD) of the oral toll-like receptor-7 agonist, JNJ-64794964 (JNJ-4964) in healthy adults. METHODS: In the SAD phase, participants received JNJ-4964 0.2 (N = 6), 0.6 (N = 6), 1.25 (N = 8) or 1.8 mg (N = 6) or placebo (N = 2/dose cohort) in a fasted state. Food effect was evaluated for the 1.25 mg cohort following >/=6 weeks washout. In the MD phase, participants received JNJ-4964 1.25 mg (N = 6) or placebo (N = 2) weekly (fasted) for 4 weeks. Participants were followed-up for 4 weeks. RESULTS: No serious adverse events (AEs) occurred. 10/34 (SAD) and 5/8 (MD) participants reported mild-to-moderate (/=100 pg/mL and lymphopenia (<1 x 10(9)/L), between 24-48 h after dosing and resolving approximately 96 h after dosing. One participant (MD) had an asymptomatic Grade 1 AE of retinal exudates (cotton wool spots) during follow-up, resolving 6 weeks after observation. JNJ-4964 exhibited dose-proportional pharmacokinetics, with rapid absorption (t(max) 0.5-0.75 h) and distribution, and a long terminal half-life (150-591 h). Overall, no significant differences in JNJ-4964 pharmacokinetic parameters were observed in the fed versus fasted state. JNJ-4964 dose-dependently and transiently induced cytokines with potential anti-HBV activity, including interferon-alpha, IP-10, IL-1 RA, and/or MCP-1, and interferon-stimulated genes (ISG15, MX1, and OAS1) in serum. CONCLUSIONS: In healthy adults, JNJ-4964 was generally well-tolerated, exhibited dose-proportional pharmacokinetics and induced cytokines/ISGs, with possible anti-HBV activity. FAU - Gane, Edward AU - Gane E AD - New Zealand Liver Transplant Unit, University of Auckland, Auckland, New Zealand. FAU - Pastagia, Mina AU - Pastagia M AD - 333755Janssen BioPharma Inc., South San Francisco, CA, USA. FAU - Schwertschlag, Ullrich AU - Schwertschlag U AD - 333755Janssen BioPharma Inc., South San Francisco, CA, USA. FAU - De Creus, An AU - De Creus A AD - Janssen Research & Development, 50148Janssen Pharmaceutica NV, Beerse, Belgium. FAU - Schwabe, Christian AU - Schwabe C AD - Auckland Clinical Studies, Auckland, New Zealand. FAU - Vandenbossche, Joris AU - Vandenbossche J AD - Janssen Research & Development, 50148Janssen Pharmaceutica NV, Beerse, Belgium. FAU - Slaets, Leen AU - Slaets L AD - Janssen Research & Development, 50148Janssen Pharmaceutica NV, Beerse, Belgium. FAU - Fevery, Bart AU - Fevery B AD - Janssen Research & Development, 50148Janssen Pharmaceutica NV, Beerse, Belgium. FAU - Smyej, Ilham AU - Smyej I AD - Janssen Research & Development, 50148Janssen Pharmaceutica NV, Beerse, Belgium. FAU - Wu, Liviawati S AU - Wu LS AD - 333755Janssen BioPharma Inc., South San Francisco, CA, USA. FAU - Li, Rui AU - Li R AD - Janssen Research & Development LLC, Titusville, NJ, USA. FAU - Siddiqui, Samia AU - Siddiqui S AD - Janssen Research & Development LLC, Titusville, NJ, USA. FAU - Oey, Abbie AU - Oey A AD - 333755Janssen BioPharma Inc., South San Francisco, CA, USA. FAU - Musto, Clark AU - Musto C AD - 333755Janssen BioPharma Inc., South San Francisco, CA, USA. FAU - Van Remoortere, Pieter AU - Van Remoortere P AUID- ORCID: 0000-0002-5537-5008 AD - Janssen Research & Development LLC, Titusville, NJ, USA. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211027 PL - England TA - Antivir Ther JT - Antiviral therapy JID - 9815705 RN - 0 (Adjuvants, Immunologic) RN - 0 (Cytokines) RN - 0 (Interferon-alpha) RN - 0 (Toll-Like Receptor 7) SB - IM MH - *Adjuvants, Immunologic MH - Adult MH - Area Under Curve MH - Cytokines MH - Double-Blind Method MH - Humans MH - Interferon-alpha MH - *Toll-Like Receptor 7 EDAT- 2022/04/30 06:00 MHDA- 2022/05/03 06:00 CRDT- 2022/04/29 05:52 PHST- 2022/04/29 05:52 [entrez] PHST- 2022/04/30 06:00 [pubmed] PHST- 2022/05/03 06:00 [medline] AID - 10.1177/13596535211056581 [doi] PST - ppublish SO - Antivir Ther. 2021 May;26(3-5):58-68. doi: 10.1177/13596535211056581. Epub 2021 Oct 27.