Koremasa Hayama

1.4k total citations · 1 hit paper
47 papers, 930 citations indexed

About

Koremasa Hayama is a scholar working on Dermatology, Rheumatology and Immunology. According to data from OpenAlex, Koremasa Hayama has authored 47 papers receiving a total of 930 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Dermatology, 19 papers in Rheumatology and 12 papers in Immunology. Recurrent topics in Koremasa Hayama's work include Urticaria and Related Conditions (17 papers), Hidradenitis Suppurativa and Treatments (9 papers) and Autoimmune Bullous Skin Diseases (8 papers). Koremasa Hayama is often cited by papers focused on Urticaria and Related Conditions (17 papers), Hidradenitis Suppurativa and Treatments (9 papers) and Autoimmune Bullous Skin Diseases (8 papers). Koremasa Hayama collaborates with scholars based in Japan, United States and Switzerland. Koremasa Hayama's co-authors include Tadashi Terui, Yoshimichi Okayama, Tomomi Sasaki-Sakamoto, Chisei Ra, Daisuke Fujisawa, Hideki Fujita, Kazumichi Kuroda, Yusuke Kikukawa, Satoshi Nunomura and Yasushi Fujitani and has published in prestigious journals such as SHILAP Revista de lepidopterología, Free Radical Biology and Medicine and Journal of Allergy and Clinical Immunology.

In The Last Decade

Koremasa Hayama

40 papers receiving 921 citations

Hit Papers

Remibrutinib, a novel BTK inhibitor, demonstrates promisi... 2022 2026 2023 2024 2022 25 50 75 100
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Remibrutinib, a novel BTK inhibitor, demonstrates promising efficacy and safety in chronic spontaneous urticaria
    2022 100 citations Marcus Maurer, Koremasa Hayama et al. Journal of Allergy and Clinical Immunology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koremasa Hayama Japan 12 536 439 298 202 192 47 930
Luís Felipe Ensina Brazil 15 198 0.4× 391 0.9× 156 0.5× 179 0.9× 96 0.5× 72 694
Yuichi Teraki Japan 19 335 0.6× 296 0.7× 394 1.3× 237 1.2× 103 0.5× 46 950
A. Mussi Italy 17 405 0.8× 307 0.7× 216 0.7× 271 1.3× 70 0.4× 33 804
Sibylle Haemmerle Switzerland 9 486 0.9× 419 1.0× 206 0.7× 137 0.7× 71 0.4× 25 716
L. D’Auria Italy 17 231 0.4× 348 0.8× 138 0.5× 365 1.8× 87 0.5× 33 704
Kathleen M. David-Bajar United States 15 174 0.3× 297 0.7× 169 0.6× 215 1.1× 43 0.2× 20 564
Vimal H. Prajapati Canada 13 249 0.5× 179 0.4× 588 2.0× 89 0.4× 179 0.9× 87 861
C. S. Seitz Germany 10 143 0.3× 161 0.4× 75 0.3× 162 0.8× 54 0.3× 22 599
Donald W. MacGlashan United States 8 470 0.9× 202 0.5× 80 0.3× 34 0.2× 599 3.1× 9 1.0k
Bradford A. Youngblood United States 17 514 1.0× 289 0.7× 43 0.1× 37 0.2× 206 1.1× 35 814

Countries citing papers authored by Koremasa Hayama

Since Specialization
Citations

This map shows the geographic impact of Koremasa Hayama'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 Koremasa Hayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koremasa Hayama more than expected).

Fields of papers citing papers by Koremasa Hayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koremasa Hayama. 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 Koremasa Hayama. The network helps show where Koremasa Hayama may publish in the future.

Co-authorship network of co-authors of Koremasa Hayama

This figure shows the co-authorship network connecting the top 25 collaborators of Koremasa Hayama. A scholar is included among the top collaborators of Koremasa Hayama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koremasa Hayama. Koremasa Hayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
McLaren, Julie, Yun Chon, Kevin Gorski, et al.. (2025). Tezepelumab for the treatment of chronic spontaneous urticaria: Results of the phase 2b INCEPTION study. Journal of Allergy and Clinical Immunology. 155(6). 1945–1956. 8 indexed citations
2.
Shi, Vivian Y., John R Ingram, Hadar Lev‐Tov, et al.. (2025). Bimekizumab Impact on Patient-Reported Outcomes in Patients with Moderate to Severe Hidradenitis Suppurativa: Pooled 48-Week Results from BE HEARD I&II. Dermatology and Therapy. 15(9). 2553–2570.
3.
Hayama, Koremasa, et al.. (2025). Effectiveness of transitioning from omalizumab to dupilumab in chronic spontaneous urticaria patients with inadequate response to omalizumab. World Allergy Organization Journal. 18(8). 101098–101098. 1 indexed citations
4.
Takahashi, Hidetoshi, Atsushi Fukunaga, Koremasa Hayama, et al.. (2024). Long term safety and efficacy of ligelizumab in the treatment of Japanese patients with chronic spontaneous urticaria. Allergology International. 74(1). 136–143. 1 indexed citations
5.
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Hayama, Koremasa, et al.. (2023). Factors associated with generalized pustular psoriasis progression among patients with psoriasis vulgaris in Japan: Results from a claims database study. The Journal of Dermatology. 50(12). 1531–1538. 4 indexed citations
7.
Hayashi, Nobukazu, Koremasa Hayama, Kenzo Takahashi, et al.. (2023). Real‐world safety and effectiveness of adalimumab in patients with hidradenitis suppurativa: A 52‐week analysis of a postmarketing surveillance study in Japan. The Journal of Dermatology. 50(8). 1034–1044. 3 indexed citations
8.
Hayama, Koremasa, et al.. (2021). A Case of IgA Vasculitis During Nivolumab Therapy for Renal Cell Carcinoma. Clinical Cosmetic and Investigational Dermatology. Volume 14. 1885–1888. 9 indexed citations
9.
Toyoshima, Shota, Koremasa Hayama, Akira Matsuda, et al.. (2021). miR103a-3p in extracellular vesicles from FcεRI-aggregated human mast cells enhances IL-5 production by group 2 innate lymphoid cells. Journal of Allergy and Clinical Immunology. 147(5). 1878–1891. 24 indexed citations
10.
11.
Hayama, Koremasa, et al.. (2019). A case of contact dermatitis caused by a polyurethane hot melt adhesive. Contact Dermatitis. 81(5). 389–391. 1 indexed citations
12.
13.
Fujita, Hideki, Tadashi Terui, Koremasa Hayama, et al.. (2018). Japanese guidelines for the management and treatment of generalized pustular psoriasis: The new pathogenesis and treatment of GPP. The Journal of Dermatology. 45(11). 1235–1270. 180 indexed citations
14.
Hayama, Koremasa, et al.. (2017). 054 A novel γ-secretase gene mutation in a Japanese family with hidradenitis. Journal of Investigative Dermatology. 137(10). S201–S201. 2 indexed citations
15.
Hayama, Koremasa, et al.. (2017). 026 Nationwide investigation of hidradenitis suppurativa in Japan. Journal of Investigative Dermatology. 137(10). S197–S197. 3 indexed citations
16.
Hayama, Koremasa, et al.. (2014). Effectiveness of a heparinoid‐containing moisturiser to treat senile xerosis. Australasian Journal of Dermatology. 56(1). 36–39. 16 indexed citations
17.
Fujisawa, Daisuke, Jun-ichi Kashiwakura, Hirohito Kita, et al.. (2014). Expression of Mas-related gene X2 on mast cells is upregulated in the skin of patients with severe chronic urticaria. Journal of Allergy and Clinical Immunology. 134(3). 622–633.e9. 297 indexed citations
18.
Hayama, Koremasa, Yoshihiro Suzuki, Toshio Inoué, et al.. (2011). Gold activates mast cells via calcium influx through multiple H2O2-sensitive pathways including L-type calcium channels. Free Radical Biology and Medicine. 50(10). 1417–1428. 6 indexed citations
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Tada, Kouji, et al.. (1995). Clinical significance of antiphospholipid antibodies in fulminant hepatic failure.. PubMed. 42(1). 27–30. 4 indexed citations

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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