期刊
JOURNAL OF VIRAL HEPATITIS
卷 27, 期 7, 页码 699-708出版社
WILEY
DOI: 10.1111/jvh.13282
关键词
GSK2878175; HCV; long-acting injectable; RG-101; single-visit cure
资金
- Regulus Therapeutics
Single-visit cures for chronic hepatitis C are lacking. We conducted two clinical studies towards the goal of developing a regimen for single-visit cure. In a randomized, open-label, Phase 2 study (RG101-04), investigators enrolled 26 adult chronic hepatitis C patients to evaluate safety and efficacy of single subcutaneous injection of RG-101 (4 mg/kg) and daily oral tablets of GSK2878175 (20 mg) for 6, 9 or 12 weeks. In another randomized, double-blind, single dose Phase 1 study (RG101-06), investigators enrolled 18 healthy men to assess safety and PK of GSK2878175 long-acting injectable at 100, 200 or 400 mg. In RG101-04, SVR48 rates were 50%, 56% and 89%, for the 6, 9 and 12 weeks treatment arms, respectively. All AEs were mild or moderate in severity (<= Grade 2). In RG101-06 at 400 mg, the mean duration of GSK2878175 plasma levels above in vitro therapeutic concentrations for GT1b was 41 days. All AEs were Grade 2 or less. In conclusion, single injection of RG-101 combined with 12 weeks of GSK2878175 oral tablets was generally well tolerated and resulted in high SVR rates in chronic hepatitis C patients. Single injections of GSK2878175 long-acting injectable were also well tolerated; however, higher doses would be required if used in combination with RG-101 to achieve the SVR rates observed in the oral combination study to enable a single-visit curative regimen.
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