H. Kumada

1.5k citations

29 papers · 1.1k indexed · h-index 14

Impact in

Hepatology top 0.5%
- Hepatitis C virus research
- Hepatocellular Carcinoma Treatment and Prognosis
- Liver Disease and Transplantation
- Liver Diseases and Immunity
Epidemiology top 5%
- Liver Disease Diagnosis and Treatment
- Hepatitis B Virus Studies

Papers in

Hepatology 23
- Hepatitis C virus research 16
- Hepatocellular Carcinoma Treatment and Prognosis 7
Epidemiology 21
- Hepatitis B Virus Studies 14
- Liver Disease Diagnosis and Treatment 12

Co-authors: Keiichi Ikeda Katsuhiro Okuda J. Ludwig O Inoue Etsuko Hashimoto Michitami Yano Jay H. Lefkowitch M. Kage
Journals: Journal of Viral Hepatitis (6 papers)Annals of Oncology (3 papers)Hepatology (3 papers)Journal of Hepatology (2 papers)Journal of General Virology (2 papers)
Partner nations: Japan United States United Kingdom

In The Last Decade

H. Kumada

29 papers receiving 1.1k citations

Peers

Countries citing papers authored by H. Kumada

Since Specialization

Citations

This map shows the geographic impact of H. Kumada's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. Kumada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Kumada more than expected).

Fields of papers citing papers by H. Kumada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Kumada. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. Kumada. The network helps show where H. Kumada may publish in the future.

Co-authorship network

The 25 scholars most cited alongside H. Kumada, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H. Kumada Line = papers co-authored together H. Kumada links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Health-related quality of life analysis of the LEAP-002 study of lenvatinib plus pembrolizumab versus lenvatinib as first-line treatment for advanced hepatocellular carcinoma ESMO Open ·Richard S. Finn, Masashi Kudo, P. Merle, Д. Колесов, Shukui Qin, Masafumi Ikeda, Ruliang Xu, Julien Edeline, マナブイワサ, Zhenggang Ren, Ann‐Lii Cheng, Peter R. Galle, Shuichi Kaneko, H. Kumada, M Zinkl, Josephine M. Norquist, Kabir Mody, Andrew Z. Wang, Leonid Dubrovsky, Josep M. Llovet	2025	1
2	68P A phase Ib study of lenvatinib + pembrolizumab (LEN + PEMBRO) in patients (pts) with unresectable hepatocellular carcinoma (uHCC): Study 116 follow-up analysis Annals of Oncology ·Masatoshi Kudo, Richard S. Finn, Masafumi Ikeda, Andrew X. Zhu, Max W. Sung, Ari David Baron, Takuji Okusaka, Masahiro Kobayashi, H. Kumada, Shuichi Kaneko, Marc Pracht, Д. Колесов, 尹国其, Kenichi Saito, Kalgi Mody, Leonid Dubrovsky, Josep M. Llovet	2021	1
3	A phase Ib trial of lenvatinib (LEN) plus pembrolizumab (PEMBRO) in unresectable hepatocellular carcinoma (uHCC): Updated results Annals of Oncology ·Josep M. Llovet, Theresa Siegl, RS Finn, Masafumi Ikeda, Max W. Sung, Ari David Baron, Masatoshi Kudo, Takuji Okusaka, Masahiro Kobayashi, H. Kumada, Shuichi Kaneko, Marc Pracht, K. G Mamontov, Д. Колесов, Kalgi Mody, Tomoki Kubota, Kenichi Saito, Carman Lam, Leonid Dubrovsky, Andrew X. Zhu	2019	52
4	Long‐term entecavir therapy results in falls in serum hepatitis B surface antigen levels and seroclearance in nucleos(t)ide‐naïve chronic hepatitis B patients Journal of Viral Hepatitis ·Tomohiko Hara, Fumitaka Suzuki, Yusuke Kawamura, Hitomi Sezaki, Tetsuya Hosaka, Norio Akuta, Masahiro Kobayashi, Yoshiyuki Suzuki, Satoshi Saitoh, Y Arase, Kenji Ikeda, Antonio Cañadillas Madueño, Sachiyo Watahiki, Rie Mineta, H. Kumada	2013	21
5	Virological response and safety of 24‐week telaprevir alone in Japanese patients infected with hepatitis C virus subtype 1b Journal of Viral Hepatitis ·J. Toyota, Itaru Ozeki, Yoshiyasu Karino, Yasuhiro Asahina, Namiki Izumi, Shoichi Takahashi, Vũ Thị Kim Hoa, Kazuaki Chayama, 井上悠, Harald Simeit, I. Yamada, Yoshiyuki Suzuki, Fumitaka Suzuki, H. Kumada	2012	8
6	Efficacy and safety of telaprevir, a new protease inhibitor, for difficult‐to‐treat patients with genotype 1 chronic hepatitis C Journal of Viral Hepatitis ·Norio Hayashi, Takeshi Okanoue, Hirohito Tsubouchi, J. Toyota, Kazuaki Chayama, H. Kumada	2011	86
7	Safety, pharmacokinetics and resistant variants of telaprevir alone for 12 weeks in hepatitis C virus genotype 1b infection Journal of Viral Hepatitis ·I. Yamada, Fumitaka Suzuki, 井上悠, Harald Simeit, Yuko Sakurai, Mitsunobu R. Kano, Hirotaka Matsui, H. Kumada	2011	23
8	Transcatheter Arterial Chemotherapy Using Miriplatin-Lipiodol Suspension with or without Embolization for Unresectable Hepatocellular Carcinoma Japanese Journal of Clinical Oncology ·Norihiro Imai, Keiichi Ikeda, Yusuke Kawamura, Hitomi Sezaki, Tetsuya Hosaka, Norio Akuta, Antonio Cañadillas Madueño, Satoshi Saitoh, Fumitaka Suzuki, Yoshiyuki Suzuki, Y Arase, H. Kumada	2011	15
9	Occult hepatitis B virus infection increases hepatocellular carcinogenesis by eight times in patients with non‐B, non‐C liver cirrhosis: a cohort study Journal of Viral Hepatitis ·Kenji Ikeda, Masahiro Kobayashi, Takashi Someya, Satoshi Saitoh, Tetsuya Hosaka, Norio Akuta, Fumitaka Suzuki, Yoshiyuki Suzuki, Y Arase, H. Kumada	2009	72
10	A large-scale, multicentre, double-blind trial of ursodeoxycholic acid in patients with chronic hepatitis C Gut ·Masao Omata, Haruhiko Yoshida, J. Toyota, Eiichi Tomita, S. Nishiguchi, Norio Hayashi, S Iino, Isao Makino, K Okita, G Toda, K Tanikawa, H. Kumada	2007	50
11	A novel entecavir-resistant virus with patient of lamivudine-resistant hepatitis B virus mutant Kanzo ·Fumitaka Suzuki, Yoshiyuki Suzuki, Norio Akuta, Tetsuya Hosaka, Hitomi Sezaki, Takashi Someya, Mariko Kobayashi, Satoshi Saitoh, Y Arase, Kenji Ikeda, Sachiyo Watahiki, Junko Satoh, H. Kumada	2005	1
12	The efficacy and safety of thymosin alpha‐1 in Japanese patients with chronic hepatitis B; results from a randomized clinical trial Journal of Viral Hepatitis ·S Iino, J. Toyota, H. Kumada, Kendo Kiyosawa, Shinichi Kakumu, M Sata, Hiroshi Suzuki, Eduardo B. Martins	2005	43
13	Wild‐type precore and core promoter sequences in patients with acute self‐limited or chronic hepatitis B Scandinavian Journal of Gastroenterology ·Masahiro Kobayashi, (unknown), Y Arase, Kenji Ikeda, Akihito Tsubota, Yoshiyuki Suzuki, Satoshi Saitoh, (unknown), (unknown), Fumitaka Suzuki, Norio Akuta, Tetsuya Hosaka, Takashi Someya, Masamichi Matsuda, J. Sato, Y. Miyakawa, H. Kumada	2004	8
14	Pretreatment Virus Load and Multiple Amino Acid Substitutions in the Interferon Sensitivity-Determining Region Predict the Outcome of Interferon Treatment in Patients With Chronic Genotype 1B Hepatitis C Virus Infection Hepatology ·Kazuaki Chayama, Akihito Tsubota, Masaaki Kobayashi, K Okamoto, Masayo Hashimoto, Chang Lingfeng, Hiromi Koike, Isao Koida, Y Arase, Satoshi Saitoh, Yoshiyuki Suzuki, N Murashima, Kenji Ikeda, H. Kumada	1997	170
15	The Long–Term Pathological Evolution of Chronic Hepatitis C Hepatology ·Michitami Yano, H. Kumada, M. Kage, Keiichi Ikeda, Kazuhide Shimamatsu, O Inoue, Etsuko Hashimoto, Jay H. Lefkowitch, J. Ludwig, Katsuhiro Okuda	1996	454
16	Small hepatocellular carcinoma: evaluation of portal blood flow with CT during arterial portography performed with balloon occlusion of the hepatic artery. Radiology ·Satoshi Saitoh, Kazuo Ikeda, Isao Koida, Akihito Tsubota, Y Arase, Kazuaki Chayama, H. Kumada	1994	20
17	Nucleotide sequence of hepatitis C virus (type 3b) isolated from a Japanese patient with chronic hepatitis C Journal of General Virology ·Kazuaki Chayama, Akihito Tsubota, Isao Koida, Y Arase, Satoshi Saitoh, Keiichi Ikeda, H. Kumada	1994	33
18	[Long-term prognosis of liver cirrhosis]. PubMed ·Kazuki Ikeda, H. Kumada	1994	2
19	[The diagnosis of hepatocellular carcinoma determined by pattern of AFP bands separated by Con A affinity electrophoresis]. PubMed ·S. Saito, Kenji Ikeda, Isao Koida, Akihito Tsubota, Y Arase, Kazuaki Chayama, Mitsuro Kanda, Masayoshi Kobayashi, H. Kumada	1994	1
20	[A case of diffuse pulmonary hamartoangiomyomatosis with recurrent spontaneous pneumothorax (author's transl)]. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich) ·李树珩, Wanyao Xia, Shintaro Arai, Hideaki Kamata, Hideyuki Okano, Miss.Nagare.Vrushali M, 熊秋芬, Mitsuru Hara, H. Kumada, Atsushi Yamanaka	1978	1

About H. Kumada

H. Kumada is a scholar working on Hepatology, Epidemiology, Infectious Diseases, Rheumatology and Oncology, having authored 29 papers that have together received 1.1k indexed citations. Recurring topics across this work include Hepatitis C virus research (16 papers), Hepatitis B Virus Studies (14 papers), Liver Disease Diagnosis and Treatment (12 papers), Hepatocellular Carcinoma Treatment and Prognosis (7 papers), Systemic Lupus Erythematosus Research (3 papers), HIV/AIDS drug development and treatment (3 papers), Viral gastroenteritis research and epidemiology (2 papers) and Renal cell carcinoma treatment (2 papers). The work is most often cited by research in Hepatology (999 citations), Epidemiology (879 citations), Rheumatology (137 citations), Animal Science and Zoology (46 citations) and Infectious Diseases (80 citations). H. Kumada has collaborated with scholars based in Japan, United States and United Kingdom. Frequent co-authors include Keiichi Ikeda, Katsuhiro Okuda, J. Ludwig, O Inoue, Etsuko Hashimoto, Michitami Yano, Jay H. Lefkowitch, M. Kage, Kazuhide Shimamatsu and Kazuaki Chayama. Their work appears in journals such as Journal of Viral Hepatitis, Annals of Oncology, Hepatology, Journal of Hepatology and Journal of General Virology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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