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Safety, antiviral activity and pharmacokinetics of JNJ-64530440, a novel capsid assembly modulator, as 4 week monotherapy in treatment-naive patients with chronic hepatitis B virus infection
Ed J Gane 1 , Christian Schwabe 2 , Elina Berliba 3 4 , Pisit Tangkijvanich 5 , Alina Jucov 3 4 , Nelea Ghicavii 3 , Thierry Verbinnen 6 , Oliver Lenz 6 , Willem Talloen 6 , Thomas N Kakuda 7 , Chris Westland 7 , Megha Patel 7 , Jeysen Z Yogaratnam 7 , Leonard Dragone 7 , Pieter Van Remoortere 8
Affiliations
Affiliations
1
New Zealand Liver Transplant Unit, University of Auckland, Auckland, New Zealand.
2
Auckland Clinical Studies, Auckland, New Zealand.
3
ARENSIA Exploratory Medicine, Republican Clinical Hospital, Chisinau, Moldova.
4
State University of Medicine and Pharmacy N. Testemitanu, Chisinau, Moldova.
5
Center of Excellence in Hepatitis and Liver Cancer, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
6
Janssen Pharmaceutica, NV, Beerse, Belgium.
7
Janssen BioPharma Inc., South San Francisco, CA, USA.
8
Janssen Pharmaceuticals, Titusville, NJ, USA.
PMID: 35040959 DOI: 10.1093/jac/dkab491
Abstract
Objectives: We investigated JNJ-64530440 (a hepatitis B virus capsid assembly modulator) safety, antiviral activity and pharmacokinetics in patients with chronic hepatitis B (CHB) (Phase 1b, NCT03439488).
Methods: Twenty treatment-naive, HBeAg-positive or -negative CHB patients were randomized 4:1 to JNJ-64530440 750 mg once or twice daily, or placebo for 28 days.
Results: All patients (mean age 43.8 years; 85% male; 70% White; 20% HBeAg positive) completed dosing/28 day follow-up. Mild-to-moderate treatment-emergent adverse events occurred in 3/4 (placebo), 6/8 (once-daily) and 4/8 (twice-daily) patients; mostly fatigue, increased alanine aminotransferase, decreased neutrophil count, and headache. Hepatitis B virus (HBV) DNA was substantially reduced; mean (range) changes from baseline at day 29 were: -3.2 (-2.4 to -3.9) (once-daily) and -3.3 (-2.6 to -4.1) (twice-daily) log10 IU/mL; placebo 0.1 (0.7 to -0.6) log10 IU/mL. HBV DNA levels were below the lower limit of quantification (LLOQ) in 5/8 (once-daily) and 3/8 (twice-daily) patients. For patients with detectable baseline HBV RNA, mean (SE) changes versus baseline in HBV RNA at day 29 were: -2.65 (0.81) (once-daily) and -2.94 (0.33) (twice-daily) log10 copies/mL. HBV RNA levels were 'target not detected' in 4/6 (once-daily) and 3/7 (twice-daily) patients. JNJ-64530440 pharmacokinetics in CHB patients were comparable with those in healthy volunteers.
Conclusions: JNJ-64530440 750 mg once-daily or twice-daily for 28 days was well tolerated and achieved potent antiviral activity in CHB patients.
© The Author(s) 2022. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy. |
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