Evidence map›Paper›PMID 33502731›Full record

ArticleInternal and emergency medicine2021

Effect of pegylated interferon alfa-2a in HBeAg-negative chronic hepatitis B during and 48 weeks after off-treatment follow-up: the limitation of pre-treatment HBsAg load for the seroclearance of HBsAg.

Shima Mimura, Koji Fujita, Kei Takuma, Mai Nakahara, Kyoko Oura, Tomoko Tadokoro, Hideki Kobara, Joji Tani, Asahiro Morishita, Takashi Himoto and 1 more

Abstract read
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In one paragraph

Article in Internal and emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.6field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Functional Cure for Hepatitis B Virus: Challenges and Achievements.International journal of molecular sciences · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Shima MimuraDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan. shima@med.kagawa-u.ac.jp.ORCID 0000-0002-9574-0479
Koji FujitaDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Kei TakumaDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Mai NakaharaDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Kyoko OuraDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Tomoko TadokoroDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Hideki KobaraDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Joji TaniDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Asahiro MorishitaDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Takashi HimotoDepartment of Medical Technology, Kagawa Prefectural University of Health Sciences, Kagawa, Japan.
Tsutomu MasakiDepartment of Gastroenterology and Neurology, Kagawa University Hospital, Ikenobe Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
Kagawa University Hospital · JPKagawa Prefectural College of Health Sciences · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis B virus (HBV) infection is a major public health problem worldwide. The study aimed to evaluate the efficacy of pegylated interferon (Peg-IFN) alfa-2a treatment for seroclearance of HBs antigen (HBsAg) in HBe antigen (HBeAg)-negative chronic hepatitis B (CHB) patients. This retrospective study investigated 16 HBeAg-negative CHB patients who received Peg-IFN alfa-2a weekly for 48 weeks. Thereafter, the patients were followed-up for 48 weeks after the end of therapy. The following criteria were also used for inclusion: HBV-DNA < 5.0 log copies/mL and without nucleot(s)ide analogs. Four HBsAg-positive cases became HBsAg negative. The HBsAg levels of the 4 patients who achieved HBsAg seroclearance were lower significantly than that of the non-seroclearance group (p = 0.007). The mean HBsAg levels in these 4 cases were 68 IU/mL, while the mean HBsAg levels in the non-seroclearance group were 2,114 IU/mL. The mean HBV-DNA levels in the 4 HBsAg seroclearance cases were 2.8 log copies/mL as compared to 3.6 log copies/mL in HBsAg-non-seroclearance cases (p = 0.01). Cases that are HBeAg negative, with HBV-DNA levels < 5 log copies/mL, and HBsAg titers < 120 IU/mL cases may achieve HBsAg clearance with Peg-IFN therapy.

Indexed as

Time FactorsAdultAftercareChi-Square DistributionFemaleHepatitis BHepatitis B e AntigensHumansInterferon-alphaMaleMiddle AgedPolyethylene GlycolsRecombinant ProteinsSeroconversionTreatment OutcomeHepatitis B e AntigensInterferon-alphapeginterferon alfa-2aPolyethylene GlycolsRecombinant ProteinsChronic hepatitis BHBeAg negativeHBsAgPeg-IFN

Identifiers

PMID33502731
OpenAlexW3123406504

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.