Ralf Sigmund

2.8k total citations · 1 hit paper
42 papers, 1.5k citations indexed

About

Ralf Sigmund is a scholar working on Physiology, Pulmonary and Respiratory Medicine and Pharmacology. According to data from OpenAlex, Ralf Sigmund has authored 42 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Physiology, 21 papers in Pulmonary and Respiratory Medicine and 5 papers in Pharmacology. Recurrent topics in Ralf Sigmund's work include Asthma and respiratory diseases (24 papers), Inhalation and Respiratory Drug Delivery (15 papers) and Respiratory and Cough-Related Research (12 papers). Ralf Sigmund is often cited by papers focused on Asthma and respiratory diseases (24 papers), Inhalation and Respiratory Drug Delivery (15 papers) and Respiratory and Cough-Related Research (12 papers). Ralf Sigmund collaborates with scholars based in Germany, United States and Netherlands. Ralf Sigmund's co-authors include Petra Moroni-Zentgraf, Huib A.M. Kerstjens, Mark Vandewalker, Ronald Dahl, Eric D. Bateman, M. Salzer‐Kuntschik, G. Beron, G. Delling, Michael Engel and Pierluigi Paggiaro and has published in prestigious journals such as New England Journal of Medicine, PEDIATRICS and CHEST Journal.

In The Last Decade

Ralf Sigmund

37 papers receiving 1.4k citations

Hit Papers

Tiotropium in Asthma Poorly Controlled with Standard Comb... 2012 2026 2016 2021 2012 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. Tiotropium in Asthma Poorly Controlled with Standard Combination Therapy
    2012 476 citations Huib A.M. Kerstjens, Michael Engel et al. New England Journal of Medicine profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralf Sigmund Germany 17 1.1k 1.0k 131 127 115 42 1.5k
Sumiko Shingo United States 14 331 0.3× 440 0.4× 138 1.1× 52 0.4× 39 0.3× 18 699
K. Malmström Switzerland 15 276 0.3× 358 0.4× 203 1.5× 283 2.2× 30 0.3× 20 856
Marius Lebret France 16 270 0.3× 257 0.3× 53 0.4× 249 2.0× 22 0.2× 64 1.0k
R. Testi Italy 18 851 0.8× 957 1.0× 277 2.1× 108 0.9× 10 0.1× 35 1.3k
B. Melloni France 17 407 0.4× 237 0.2× 37 0.3× 168 1.3× 38 0.3× 60 862
K. Hirata Japan 14 317 0.3× 233 0.2× 32 0.2× 235 1.9× 23 0.2× 36 747
Harry R. Jacobson United States 16 351 0.3× 164 0.2× 48 0.4× 285 2.2× 18 0.2× 25 1.0k
Lisa Hickey United States 13 106 0.1× 210 0.2× 34 0.3× 113 0.9× 20 0.2× 31 684
Jerzy Dropiński Poland 15 157 0.1× 103 0.1× 26 0.2× 75 0.6× 141 1.2× 44 674
M. Castro Argentina 16 248 0.2× 119 0.1× 37 0.3× 252 2.0× 13 0.1× 26 1000

Countries citing papers authored by Ralf Sigmund

Since Specialization
Citations

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

Fields of papers citing papers by Ralf Sigmund

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ralf Sigmund

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf Sigmund. A scholar is included among the top collaborators of Ralf Sigmund 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 Ralf Sigmund. Ralf Sigmund 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.
2.
Bissonnette, Robert, William Abramovits, Étienne Saint‐Cyr Proulx, et al.. (2022). Spesolimab, an anti‐interleukin‐36 receptor antibody, in patients with moderate‐to‐severe atopic dermatitis: Results from a multicentre, randomized, double‐blind, placebo‐controlled, phase IIa study. Journal of the European Academy of Dermatology and Venereology. 37(3). 549–557. 34 indexed citations
3.
Szefler, Stanley J., Stanley Goldstein, Christian Vogelberg, et al.. (2020). Forced Expiratory Flow (FEF25–75%) as a Clinical Endpoint in Children and Adolescents with Symptomatic Asthma Receiving Tiotropium: A Post Hoc Analysis. Pulmonary Therapy. 6(2). 151–158. 12 indexed citations
4.
Buhl, Roland, J. Mark FitzGerald, Eli O. Meltzer, et al.. (2019). Efficacy of once-daily tiotropium Respimat in adults with asthma at GINA Steps 2–5. Pulmonary Pharmacology & Therapeutics. 60. 101881–101881. 7 indexed citations
5.
Vrijlandt, Elianne J.L.E., Georges El Azzi, Mark Vandewalker, et al.. (2018). Safety and efficacy of tiotropium in children aged 1–5 years with persistent asthmatic symptoms: a randomised, double-blind, placebo-controlled trial. The Lancet Respiratory Medicine. 6(2). 127–137. 49 indexed citations
6.
Vogelberg, Christian, Michael E. Engel, Jonathan A. Bernstein, et al.. (2018). Tiotropium add-on therapy improves lung function in children with symptomatic moderate asthma. The Journal of Allergy and Clinical Immunology In Practice. 6(6). 2160–2162.e9. 32 indexed citations
7.
Beck, Edward C., ER Bleecker, Rikke Buhl, et al.. (2018). Efficacy of once-daily tiotropium Respimat® in adults with asthma based on GINA steps 2 – 5. Pneumologie. 72(S 01). S32–S32. 1 indexed citations
8.
Halpin, David, J. Mark FitzGerald, Michael Engel, et al.. (2018). Comparison of PEF vs. FEV1 Endpoints in Trials with Tiotropium in Adults and Adolescents with Moderate or Severe Symptomatic Asthma. Journal of Allergy and Clinical Immunology. 141(2). AB211–AB211.
9.
Beeh, Kai-Michael, Anne‐Marie Kirsten, Daniel Dusser, et al.. (2016). Pharmacodynamics and Pharmacokinetics Following Once-Daily and Twice-Daily Dosing of Tiotropium Respimat ® in Asthma Using Standardized Sample-Contamination Avoidance. Journal of Aerosol Medicine and Pulmonary Drug Delivery. 29(5). 406–415. 19 indexed citations
10.
Dahl, Ronald, Eric D. Bateman, Thomas B. Casale, et al.. (2014). Once-daily tiotropium Respimat (R) as add-on to at least medium- to high-dose ICS, with or without LABA, improves lung function in patients with symptomatic asthma, independent of allergic status. Allergy. 69. 515–515. 2 indexed citations
11.
Vogelberg, Christian, Michael E. Engel, Petra Moroni-Zentgraf, et al.. (2014). Once-Daily Tiotropium Respimat Add-On to Medium-Dose ICS Is an Efficacious 24-Hour Bronchodilator in Adolescent Patients With Symptomatic Asthma. CHEST Journal. 146(4). 698A–698A. 1 indexed citations
12.
Vandewalker, Mark, Eli O. Meltzer, Michael Engel, et al.. (2014). Safety and Tolerability of Once-Daily Tiotropium Respimat Add-On to at Least ICS: Results From Five Phase III Trials in Adult Patients With Symptomatic Asthma. CHEST Journal. 146(4). 1A–1A. 1 indexed citations
13.
Vogelberg, Christian, Michael Engel, Petra Moroni-Zentgraf, et al.. (2014). Tiotropium in asthmatic adolescents symptomatic despite inhaled corticosteroids: A randomised dose-ranging study. Respiratory Medicine. 108(9). 1268–1276. 78 indexed citations
14.
Kerstjens, Huib A.M., Michael Engel, Ronald Dahl, et al.. (2012). Tiotropium in Asthma Poorly Controlled with Standard Combination Therapy. New England Journal of Medicine. 367(13). 1198–1207. 476 indexed citations breakdown →
15.
Kerstjens, Huib A.M., Ronald Dahl, Ekkehard Beck, et al.. (2012). Tiotropium reduces asthma exacerbations in asthmatic patients with persistent airflow obstruction uncontrolled despite treatment in accordance with guidelines. 40. 1796.
16.
Kerstjens, Huib A.M., Bernd Disse, Theo A. Bantje, et al.. (2011). Tiotropium improves lung function in patients with severe uncontrolled asthma: A randomized controlled trial. Journal of Allergy and Clinical Immunology. 128(2). 308–314. 211 indexed citations
17.
Díaz‐González, Federico, W. Bensen, Jacques P. Brown, et al.. (2006). Clinical trial of a leucotriene B4 receptor antagonist, BIIL 284, in patients with rheumatoid arthritis. Annals of the Rheumatic Diseases. 66(5). 628–632. 38 indexed citations
18.
Türck, Dietrich, Werner Weber, Ralf Sigmund, et al.. (2004). Pharmacokinetics of Intravenous, Single‐Dose Tiotropium in Subjects with Different Degrees of Renal Impairment. The Journal of Clinical Pharmacology. 44(2). 163–172. 36 indexed citations
19.
Zeidler, H., et al.. (2002). Prescription and Tolerability of Meloxicam in Day-to-Day Practice. JCR Journal of Clinical Rheumatology. 8(6). 305–315. 18 indexed citations
20.
Sigmund, Ralf, et al.. (1997). Efficacy and Tolerability of Intramuscular and Oral Meloxicam in Patients with Acute Lumbago: A Comparison with Intramuscular and Oral Piroxicam. Current Medical Research and Opinion. 14(1). 29–38. 26 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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