Tom3 schreef op 2 november 2021 11:30:
Deze onderzoeksgegevens werden in augustus 2020 bekend gemaakt:
Presentation Details:
Title: Short-term treatment with RNA interference therapy, JNJ-3989, results in sustained hepatitis B surface antigen suppression in patients with chronic hepatitis B receiving nucleos(t)ide analogue treatment
Authors: Edward Gane, et al.
Type: Oral Presentation
Date and Time: August 28, 2020 at 13:30 CEST
Key points presented include the following:
In the AROHBV1001 study in CHB patients, JNJ-3989 was administered on Days 0, 28, and 56 in combination with daily oral NA treatment
The objectives of this analysis were to assess sustained response in hepatitis B surface antigen (HBsAg), HBV RNA, hepatitis B e-antigen (HBeAg) and hepatitis B core-related antigen (HBcrAg) up to Day 392, 48 weeks after the last JNJ-3989 dose in patients with CHB continuing with NA treatment from Day 0 to end of study Sustained responders were classified as those CHB patients with =1 log10 IU/mL reduction in HBsAg from Day 0 to Day 392.
For the first time in patients with CHB, siRNA therapy resulted in sustained, off-treatment =1log10 IU/mL reductions in HBsAg through to 48 weeks in 39% of patients after the last JNJ-3989 dose. Reductions in HBV RNA, HBeAg, HBcrAg were seen across all cohorts, and were more pronounced in HBsAg sustained responders than non-responders. Three injections of JNJ-3989 administered once every 4 weeks were well tolerated at doses up to 400 mg and appeared to have a good long-term safety profile
These results support the evaluation of longer durations of treatment with JNJ-3989 + NA, with the objective of providing a functional cure in patients with CHB.
In 2020 werd nog het aantal (39%) genoemd dat een significante (log 10 IU/ml) verlaging van HBsAG bereikte. Dat aantal is nu niet gespecificeerd. Nu weten we dat in het 200mg (kennelijk de optimale dosis) cohort 33% minder dan 10IU/ml HBsAG in week 44 had en 72% had minder dan 100IU/ml.
Voor een functional cure is het nodig dat je geen HBsAG meer kunt ontdekken (HBsAG loss), dat doel is hier geloof ik nog maar voor 4% bereikt.
Lees svp het navolgende artikel:
www.cghjournal.org/article/S1542-3565...