Gregory Klein

4.7k total citations · 2 hit papers
82 papers, 2.1k citations indexed

About

Gregory Klein is a scholar working on Physiology, Radiology, Nuclear Medicine and Imaging and Psychiatry and Mental health. According to data from OpenAlex, Gregory Klein has authored 82 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Physiology, 20 papers in Radiology, Nuclear Medicine and Imaging and 19 papers in Psychiatry and Mental health. Recurrent topics in Gregory Klein's work include Alzheimer's disease research and treatments (34 papers), Dementia and Cognitive Impairment Research (18 papers) and Medical Imaging Techniques and Applications (14 papers). Gregory Klein is often cited by papers focused on Alzheimer's disease research and treatments (34 papers), Dementia and Cognitive Impairment Research (18 papers) and Medical Imaging Techniques and Applications (14 papers). Gregory Klein collaborates with scholars based in Switzerland, United States and United Kingdom. Gregory Klein's co-authors include Paulo Fontoura, Paul Delmar, Carsten Hofmann, Mirjana Andjelković, Gertrude Henle, Pascal Burtin, Hsing-Ying Ho, G de-Thé, Volker Diehl and Y Cachin and has published in prestigious journals such as Neurology, JNCI Journal of the National Cancer Institute and PLoS Biology.

In The Last Decade

Gregory Klein

71 papers receiving 2.0k citations

Hit Papers

A phase III randomized tr... 1970 2026 1988 2007 2017 1970 100 200 300 400
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. A phase III randomized trial of gantenerumab in prodromal Alzheimer’s disease
    2017 411 citations Frederik Barkhof, Carsten Hofmann et al. Alzheimer s Research & Therapy profile →
  2. Antibodies to Epstein-Barr Virus in Nasopharyngeal Carcinoma, Other Head and Neck Neoplasms, and Control Groups<xref ref-type="fn" rid="FN2">2</xref>
    1970 341 citations Gregory Klein et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Gregory Klein 1.0k 604 479 304 297 82 2.1k
Juan Deng 571 0.6× 217 0.4× 277 0.6× 570 1.9× 161 0.5× 145 2.2k
Gwendlyn Kollmorgen 555 0.5× 397 0.7× 357 0.7× 499 1.6× 61 0.2× 110 1.8k
Richard Batrla 1.2k 1.1× 906 1.5× 61 0.1× 494 1.6× 91 0.3× 24 2.4k
Luigi Grimaldi 562 0.5× 217 0.4× 219 0.5× 507 1.7× 56 0.2× 51 2.3k
Wen Liu 485 0.5× 72 0.1× 357 0.7× 516 1.7× 124 0.4× 89 2.0k
Zhenyu Zhong 767 0.7× 198 0.3× 89 0.2× 402 1.3× 157 0.5× 52 1.5k
Shuting Zhang 557 0.5× 111 0.2× 112 0.2× 778 2.6× 133 0.4× 123 2.3k
Cynthia Evans 895 0.9× 485 0.8× 56 0.1× 279 0.9× 318 1.1× 40 1.6k
Elizabeth A. Milward 874 0.8× 136 0.2× 124 0.3× 761 2.5× 182 0.6× 55 2.2k
Vilmantas Giedraitis 692 0.7× 341 0.6× 139 0.3× 1.2k 3.9× 100 0.3× 51 2.6k

Countries citing papers authored by Gregory Klein

Since Specialization
Citations

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

Fields of papers citing papers by Gregory Klein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Gregory Klein

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory Klein. A scholar is included among the top collaborators of Gregory Klein 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 Gregory Klein. Gregory Klein 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.
Klein, Gregory, Tobias Bittner, Daria Rukina, et al.. (2025). Interim biomarker results for trontinemab, a novel Brainshuttle™ antibody in development for the treatment of Alzheimer’s disease. Alzheimer s & Dementia. 21(S5). e104288–e104288.
2.
Klein, Gregory, et al.. (2025). In Vivo Head-to-Head Comparison of [18F]GTP1 with [18F]MK-6240 and [18F]PI-2620 in Alzheimer Disease. Journal of Nuclear Medicine. 66(2). 277–285. 3 indexed citations
3.
Bittner, Tobias, Mattéo Tonietto, Gregory Klein, et al.. (2025). Biomarker treatment effects in two phase 3 trials of gantenerumab. Alzheimer s & Dementia. 21(2). e14414–e14414. 2 indexed citations
4.
Kulic, Luka, Gregory Klein, Carsten Hofmann, et al.. (2025). Latest results from the dose‐expansion part (Part 2) of the Brainshuttle™ AD study of trontinemab in people with Alzheimer’s disease. Alzheimer s & Dementia. 21(S5). e104293–e104293.
5.
Boada, Merçé, Szofia Bullain, Tobias Bittner, et al.. (2024). Long-term safety of gantenerumab in participants with Alzheimer's disease: A phase III, open-label extension study (SCarlet RoAD). Journal of Alzheimer s Disease. 103(2). 528–541.
6.
7.
Salloway, Stephen, Nicola Voyle, Christopher Lane, et al.. (2024). Amyloid-Related Imaging Abnormalities (ARIA) in Clinical Trials of Gantenerumab in Early Alzheimer Disease. JAMA Neurology. 82(1). 19–19. 15 indexed citations
8.
Vogel, Jacob W., Alexa Pichet Binette, Travis Thompson, et al.. (2024). Regional Amyloid Load Predicts Tau and Atrophy Dynamics. Alzheimer s & Dementia. 20(S2).
9.
Boess, Frank, Marzia A. Scelsi, Timo Grimmer, et al.. (2024). At-home Administration of Gantenerumab by Care Partners to People with Early Alzheimer's Disease: Feasibility, Safety and Pharmacodynamic Impact. The Journal of Prevention of Alzheimer s Disease. 11(3). 537–548. 1 indexed citations
10.
11.
Smith, Ruben, Douglas Hägerström, Gregory Klein, et al.. (2023). Clinical Utility of Tau Positron Emission Tomography in the Diagnostic Workup of Patients With Cognitive Symptoms. JAMA Neurology. 80(7). 749–749. 18 indexed citations
12.
Bracoud, Luc, Gregory Klein, Marzia A. Scelsi, et al.. (2023). Validation of 3‐ and 5‐point severity scales to assess ARIA‐E. Alzheimer s & Dementia Diagnosis Assessment & Disease Monitoring. 15(4). e12503–e12503. 6 indexed citations
13.
14.
Klein, Gregory, Paul Delmar, Nicola Voyle, et al.. (2019). Gantenerumab reduces amyloid-β plaques in patients with prodromal to moderate Alzheimer’s disease: a PET substudy interim analysis. Alzheimer s Research & Therapy. 11(1). 101–101. 158 indexed citations
15.
Klein, Gregory, Paul Delmar, Carsten Hofmann, et al.. (2018). Higher Dose Gantenerumab leads to Significant Reduction in Amyloid Plaque Burden -Results for the Marguerite and Scarlet Road Open Label Extension Studies (S2.005). Neurology. 90(15_supplement). 3 indexed citations
16.
17.
O’Neill, Joseph, Jamie L. Eberling, Norbert Schuff, et al.. (2000). Method to correlate 1H MRSI and 18FDG-PET. Magnetic Resonance in Medicine. 43(2). 244–244. 3 indexed citations
18.
O’Neill, Joseph, Jamie L. Eberling, Norbert Schuff, et al.. (2000). Method to correlate1H MRSI and18FDG-PET. Magnetic Resonance in Medicine. 43(2). 244–250. 33 indexed citations
19.
Marín, Gustavo H., Gregory Klein, Claire M. Italiano, et al.. (1999). Immune recovery after bone marrow and peripheral blood stem cells transplantation. Transplantation Proceedings. 31(6). 2582–2584. 6 indexed citations
20.
Andersson‐Anvret, Maria, Gregory Klein, Nils Forsby, & W Henle. (1978). The association between undifferentiated nasopharyngeal carcinoma and Epstein-Barr virus shown by correlated nucleic acid hybridization and histopathological studies.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 347–57. 11 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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