Joachim Sieper

75.4k citations

551 papers · 37.6k indexed · 14 hit papers · h-index 101

Impact in

Rheumatology top 0.01%
- Spondyloarthritis Studies and Treatments
- Rheumatoid Arthritis Research and Therapies
- Systemic Lupus Erythematosus Research
Hematology top 0.01%
- Autoimmune and Inflammatory Disorders Research

Papers in

Rheumatology 515
- Spondyloarthritis Studies and Treatments 478
- Rheumatoid Arthritis Research and Therapies 358
- Systemic Lupus Erythematosus Research 40
Immunology 257
- Psoriasis: Treatment and Pathogenesis 224

Co-authors: Jürgen Braun Martín Rudwaleit Joachim Listing Désirée van der Heijde Denis Poddubnyy Xenofon Baraliakos Hildrun Haibel J. Brandt
Journals: Annals of the Rheumatic Diseases (166 papers)Lara D. Veeken (34 papers)Arthritis Research & Therapy (24 papers)The Journal of Rheumatology (20 papers)RMD Open (18 papers)
Partner nations: Germany United States Netherlands

In The Last Decade

Joachim Sieper

527 papers receiving 36.3k citations

Hit Papers

14 papers align trajectories log scale

Axial spondyloarthritis 2017 · 871 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2017 The Lancet
2015 New England Journal of Medicine
2010 Annals of the Rheumatic Diseases
2009 Annals of the Rheumatic Diseases
2009 Annals of the Rheumatic Diseases
2009 Arthritis & Rheumatism
2008 Annals of the Rheumatic Diseases
2008 Annals of the Rheumatic Diseases
2008 Arthritis & Rheumatism
2007 The Lancet
2006 Arthritis & Rheumatism
2005 Arthritis & Rheumatism
2002 The Lancet
1998 Arthritis & Rheumatism

Peers

Countries citing papers authored by Joachim Sieper

Since Specialization

Citations

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

Fields of papers citing papers by Joachim Sieper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Joachim Sieper, 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 Joachim Sieper Line = papers co-authored together Joachim Sieper links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Longitudinal association of early axial spondyloarthritis status at the time of diagnosis with disease activity over time: 10-year results from the GESPIC cohort RMD Open ·David Kiefer, Imke Redeker, Murat Torğutalp, Valeria Ríos Rodríguez, Judith Rademacher, Fabian Proft, Mikhail Protopopov, Hildrun Haibel, Joachim Sieper, Martín Rudwaleit, Xenofon Baraliakos, Denis Poddubnyy	2025	0
2	Evaluation of instruments assessing peripheral arthritis in spondyloarthritis: an analysis of the ASAS-PerSpA study Annals of the Rheumatic Diseases ·治郎伊藤, Clementina López‐Medina, Désirée van der Heijde, Robert Landewé, Maxime Dougados, Joachim Sieper, Anna Moltó, Sofía Ramiro	2025	2
3	Association between resolution of MRI-detected inflammation and improved clinical outcomes in axial spondyloarthritis under long-term anti-TNF therapy RMD Open ·Murat Torğutalp, Judith Rademacher, Fabian Proft, Kay‐Geert Hermann, Christian E. Althoff, Hildrun Haibel, Mikhail Protopopov, Joachim Sieper, Valeria Ríos Rodríguez, Denis Poddubnyy	2025	0
4	Exploring complement biomarkers in suspected axial spondyloarthritis RMD Open ·Kahriman Mesud, Anne Troldborg, Anne Gitte Loft, Steffen Thiel, Laura Spiller, Mikhail Protopopov, Valeria Ríos Rodríguez, Burkhard Muche, Judith Rademacher, Makharov Nodirbek Tolkunovich, Şahin Erdöl, Joachim Sieper, Denis Poddubnyy, Fabian Proft	2024	1
5	Comparison of the effect of treatment with NSAIDs added to anti-TNF therapy versus anti-TNF therapy alone on the progression of structural damage in the spine over 2 years in patients with radiographic axial spondyloarthritis from the randomised-controlled CONSUL trial Annals of the Rheumatic Diseases ·Fabian Proft, Murat Torğutalp, Burkhard Muche, Valeria Ríos Rodríguez, Joachim Listing, Mikhail Protopopov, Judith Rademacher, Hildrun Haibel, Laura Spiller, Makharov Nodirbek Tolkunovich, Chuck Needy, Anne Christine Peyter, Uta Kiltz, Elisa Chiavassa, 正門馬, Joachim Sieper, Denis Poddubnyy	2024	9
6	Efficacy and safety of upadacitinib for active ankylosing spondylitis refractory to biological therapy: a double-blind, randomised, placebo-controlled phase 3 trial Annals of the Rheumatic Diseases ·Désirée van der Heijde, Xenofon Baraliakos, Joachim Sieper, Atul Deodhar, Robert D. Inman, Hideto Kameda, Xiaofeng Zeng, Yunxia Sui, J. F. Wang, Aileen L. Pangan, Peter Wung, In‐Ho Song	2022	79
7	MRI lesions of the spine in patients with axial spondyloarthritis: an update of lesion definitions and validation by the ASAS MRI working group Annals of the Rheumatic Diseases ·Xenofon Baraliakos, Mikkel Østergaard, R. Lambert, Iris Eshed, Pedro Machado, Susanne Juhl Pedersen, Ulrich Weber, Manouk de Hooge, Joachim Sieper, Denis Poddubnyy, Martín Rudwaleit, Désirée van der Heijde, Robert Landewé, Walter P. Maksymowych	2022	41
8	The Sensitivity to Change of the ASAS Health Index in an Observational Real-Life Cohort Study The Journal of Rheumatology ·Anne C. Regierer, Anja Weiß, Uta Kiltz, Joachim Sieper, Fardila Nasriyati, M. Bohl-Bühler, Herbert Kellner, Denis Poddubnyy, A. Zink, Jürgen Braun, Joachim Listing, Anja Strangfeld	2022	3
9	What amount of structural damage defines sacroiliitis: a CT study RMD Open ·Kay‐Geert Hermann, Katharina Ziegeler, 基維山県, Denis Poddubnyy, Fabian Proft, Юлия Ивановна Башкатова, Juliane Greese, Joachim Sieper, Torsten Diekhoff	2022	14
10	Upadacitinib in active ankylosing spondylitis: results of the 2-year, double-blind, placebo-controlled SELECT-AXIS 1 study and open-label extension RMD Open ·Désirée van der Heijde, Atul Deodhar, Walter P. Maksymowych, Joachim Sieper, Filip Van den Bosch, Tae‐Hwan Kim, Mitsumasa Kishimoto, Andrew J.K. Östör, Bernard Combe, Yunxia Sui, Yuanyuan Duan, Peter Wung, In‐Ho Song	2022	32
11	Long-term tolerability and efficacy of golimumab in active non-radiographic axial spondyloarthritis: results from open-label extension Lara D. Veeken ·Désirée van der Heijde, Maxime Dougados, Walter P. Maksymowych, G. Bergman, Sean Curtis, Anjela Tzontcheva, Susan Huyck, George Philip, Joachim Sieper	2021	3
12	Diagnosing axial spondyloarthritis: estimation of the disease probability in patients witha prioridifferent likelihoods of the diagnosis Lara D. Veeken ·Denis Poddubnyy, Fabian Proft, Laura Spiller, Mikhail Protopopov, Valeria Ríos Rodríguez, Burkhard Muche, Judith Rademacher, Murat Torğutalp, Janis L. Vahldiek, Joachim Sieper, Imke Redeker	2021	9
13	OP0079 PRELIMINARY DEFINITION OF A POSITIVE MRI FOR STRUCTURAL LESIONS IN THE SACROILIAC JOINTS IN AXIAL SPONDYLOARTHRITIS Annals of the Rheumatic Diseases ·Walter P. Maksymowych, Xenofon Baraliakos, Ulrich Weber, Pedro Machado, Susanne Juhl Pedersen, Joachim Sieper, Stephanie Wichuk, Denis Poddubnyy, Martín Rudwaleit, Désirée van der Heijde, Robert Landewé, Joel Paschke, R. Lambert, Mikkel Østergaard	2020	1
14	Assessment of radiographic sacroiliitis in anteroposterior lumbar vs conventional pelvic radiographs in axial spondyloarthritis Lara D. Veeken ·Valeria Ríos Rodríguez, Arjan Bosman And, Mikhail Protopopov, Joachim Sieper, Hildrun Haibel, Fabian Proft, Martín Rudwaleit, Denis Poddubnyy	2020	5
15	Is a positive family history of spondyloarthritis relevant for diagnosing axial spondyloarthritis once HLA-B27 status is known? Lara D. Veeken ·M. van Lunteren, Désirée van der Heijde, Alexandre Sepriano, Inger Jorid Berg, Maxime Dougados, Laure Gossec, L. Jacobsson, Roberta Ramonda, Martín Rudwaleit, Joachim Sieper, Robert Landewé, F. van Gaalen	2019	26
16	Efficacy and safety of ixekizumab through 52 weeks in two phase 3, randomised, controlled clinical trials in patients with active radiographic axial spondyloarthritis (COAST-V and COAST-W) Annals of the Rheumatic Diseases ·Maxime Dougados, James Cheng‐Chung Wei, Robert Landewé, Joachim Sieper, Xenofon Baraliakos, Filip Van den Bosch, Walter P. Maksymowych, Joerg Ermann, Jessica A. Walsh, Tetsuya Tomita, Atul Deodhar, Désirée van der Heijde, Xiaoqi Li, Fangyi Zhao, Clinton C. Bertram, Gaia Gallo, Hilde Carlier, Lianne S. Gensler	2019	86
17	Impact of baseline C-reactive protein levels on the response to secukinumab in ankylosing spondylitis: 3-year pooled data from two phase III studies RMD Open ·Jürgen Braun, Atul Deodhar, Robert Landewé, Xenofon Baraliakos, Corinne Miceli‐Richard, Joachim Sieper, Erhard Quebe‐Fehling, Ruvie Martin, Brian Porter, Kunal K. Gandhi, Désirée van der Heijde, (unknown)	2018	24
18	Genetic diagnostic profiling in axial spondyloarthritis: a real world study. PubMed ·Gethin Thomas, Dana Willner, Philip C. Robinson, Adrián Cortés, Ran Duan, Martín Rudwaleit, Nurullah Akkoç, Jürgen Braun, Fernando Velasquez, Walter P. Maksymowych, Salih Özgöçmen, Euthalia Roussou, Joachim Sieper, Rafael Valle‐Oñate, Désirée van der Heijde, James Cheng‐Chung Wei, Paul Leo, Matthew A. Brown	2017	24
19	Clinical and MRI responses to etanercept in early non-radiographic axial spondyloarthritis: 48-week results from the EMBARK study Annals of the Rheumatic Diseases ·Walter P. Maksymowych, Maxime Dougados, Désirée van der Heijde, Joachim Sieper, Jürgen Braun, Gustavo Citera, Filip Van den Bosch, I. Logeart, Joseph Wajdula, Heather Jones, Lisa Marshall, R. Bonin, Ron Pedersen, Bonnie Vlahos, Sameer Kotak, Jack F. Bukowski	2015	80
20	Development of an ASAS-endorsed recommendation for the early referral of patients with a suspicion of axial spondyloarthritis Annals of the Rheumatic Diseases ·Denis Poddubnyy, Astrid van Tubergen, Robert Landewé, Joachim Sieper, Désirée van der Heijde	2015	82

About Joachim Sieper

Joachim Sieper is a scholar working on Rheumatology, Immunology, Hematology, Orthopedics and Sports Medicine and Dermatology, having authored 551 papers that have together received 37.6k indexed citations. Recurring topics across this work include Spondyloarthritis Studies and Treatments (478 papers), Rheumatoid Arthritis Research and Therapies (358 papers), Psoriasis: Treatment and Pathogenesis (224 papers), Autoimmune and Inflammatory Disorders Research (132 papers), Bone and Joint Diseases (70 papers), Systemic Lupus Erythematosus Research (40 papers), Fibromyalgia and Chronic Fatigue Syndrome Research (21 papers) and Inflammatory mediators and NSAID effects (19 papers). The work is most often cited by research in Rheumatology (32.8k citations), Hematology (11.0k citations), Immunology (18.7k citations), Orthopedics and Sports Medicine (4.7k citations) and Dermatology (946 citations). Joachim Sieper has collaborated with scholars based in Germany, United States and Netherlands. Frequent co-authors include Jürgen Braun, Martín Rudwaleit, Joachim Listing, Désirée van der Heijde, Denis Poddubnyy, Xenofon Baraliakos, Hildrun Haibel, J. Brandt, Maxime Dougados and Kay‐Geert Hermann. Their work appears in journals such as Annals of the Rheumatic Diseases, Lara D. Veeken, Arthritis Research & Therapy, The Journal of Rheumatology and RMD Open.

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.

Explore authors with similar magnitude of impact