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462
SUSTAINED RESPONSE WITHOUT NUCLEOS(T)IDES AFTER
PEGYLATED INTERFERON REPRESENT FAVORABLE OUTCOME:
UP TO 13years FOLLOW-UP
Soon Kyu Lee, Jung Hyun Kwon, Jeong Won Jang, Hee
Chul Nam, Yoon-Jung Kim, Sun Hong Yoo, Soon Woo
Nam, SI Hyun Bae, Jong Young Choi and Seung Kew Yoon,
Department of Internal Medicine, the Catholic University Liver
Research Center, College of Medicine, the Catholic University
of Korea
Background:: Pegylated interferon (PEG-IFN) treatment with
a high rate of off-therapy immune control is still an attractive
treatment for chronic hepatitis B in the era of nucleos(t)
ides (NAs) There remains uncertain about the prognosis of
sustained responder without NAs after completing PEG-IFN
therapy. We investigated the long-term outcomes of PEGIFN
treatment focused on tolerant patients without NAs up
to 13 years Methods: A consecutive 190 patients treated
with PEG-IFN for chronic hepatitis B or compensated liver
cirrhosis between 2005 and 2014 were enrolled and finally
122 patients who fully completed PEG-IFN treatment were
analyzed The virological response for PEG-IFN treatment
after 6 months of treatment was defined as; HBeAg positive
patients, achieve both virologic response (VR, <2,000 IU/
ml of HBV DNA) and serologic response (HBeAg loss or
seroconversion); HBeAg negative patients achieve VR. We
evaluated the rate of off-therapy HBsAg loss, and the rate
of starting NAs due to viral activation, and development of
liver cirrhosis and hepatocellular carcinoma (HCC) Results:
The median follow-up period of 122 patients were 7 2
years (range, 1 1 -13 2 years) Of 122 patients, 43 patients
(35 2%) showed a response after 6 months of treatment
During follow-up, 69 patients (56 6%) started NAs and the
patients who had a response for PEG-IFN significantly lower
rate of starting NAs (14/43 vs 55/79, P<0 001) HBsAg loss
subsequently occurred in 9 patients (7 4%) and sustained
responders without further NAs treatment had significantly
high rate of HBsAg loss compared to the patients with starting
NAs (13 2% vs 2 9%, P=0 01) All the patients (n=8, 6 6%)
who developed liver cirrhosis and HCC, were non-sustained
responders, in contrast, none of sustained responders
progressed to liver cirrhosis or HCC (P=0 03) Conclusion:
Even though including the patients who were not reached the
response at 6 months after PEG-IFN treatment, sustained
responders without further NAs treatment had a favorable
clinical outcome in HBsAg loss and no disease progression
up to 13 years.
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