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Dr. T.G.H. (Thomas) Kempen

Assistant Professor 
Science
Pharmaceutical sciences
Pharmacoepi. and Clinical Pharmacol.
Pharmacoepi. and Clinical Pharmacol.
David de Wiedgebouw
Universiteitsweg 99
3584 CG Utrecht

Dr. T.G.H. (Thomas) Kempen

Assistant Professor
Pharmacoepi. and Clinical Pharmacol.
+31 6 28 541 980
t.g.h.kempen@uu.nl
Profile Publications Teaching Ancillary activities Contact
Profile Publications Teaching Ancillary activities Contact

Publications

2025

Scholarly publications

Cam, H., Franzon, K., Östman, V., Kälvemark Sporrong, S., Kempen, T. G. H., Nielsen, E. I., Lindner, K.-J., Ekelo, B., Bernsten, C., Ehlin, U., Lindmark, S., Hadziosmanovic, N., & Gillespie, U. (2025). Improved Medication communication and Patient involvement At Care Transitions (IMPACT-care): study protocol for a pre-post intervention trial in older hospitalised patients. BMJ Open, 15(5), Article e099547. https://doi.org/10.1136/bmjopen-2025-099547
https://research-portal.uu.nl/ws/files/263478618/e099547.full.pdf
Mertens, J. F., Hessel, M. H. M., Kempen, T. G. H., Böhringer, S., Norbart, A. F., Walinga, C. W., & van Gelder, T. (2025). Evaluation of an interprofessional education program involving medical and pharmacy students: a mixed-method study. BMC Medical Education, 25(1), Article 48. https://doi.org/10.1186/s12909-024-06574-w
https://research-portal.uu.nl/ws/files/252571938/s12909-024-06574-w.pdf
Kaymakci, B., Philbert, D., Hazen, A. C. M., Heringa, M., Kwint, H. F., Zwart, D. L. M., van Dijk, L., Kälvemark Sporrong, S., & Kempen, T. G. H. (2025). Pharmacists’ perspectives on potential pharmacist prescribing: a nationwide survey in the Netherlands. International Journal of Clinical Pharmacy, 47(2), 392–402. Article e2421993. https://doi.org/10.1007/s11096-024-01842-7
https://research-portal.uu.nl/ws/files/261675216/s11096-024-01842-7.pdf

2024

Scholarly publications

Cam, H., Franzon, K., Sporrong, S. K., Kempen, T. G. H., Bernsten, C., Nielsen, E. I., Gustavsson, L., Moosavi, E., Lindmark, S., Ehlin, U., Sjölander, M., Lindner, K. J., & Gillespie, U. (2024). 'You're Just Thinking About Going Home': Exploring Person-Centred Medication Communication With Older Patients at Hospital Discharge. Health expectations : an international journal of public participation in health care and health policy, 27(5), Article e70065. https://doi.org/10.1111/hex.70065
https://research-portal.uu.nl/ws/files/243462298/Health_Expectations_-_2024_-_Cam_-_You_re_Just_Thinking_About_Going_Home_Exploring_Person_Centred_Medication.pdf
Kempen, T. G. H., Benaissa, Y., Molema, H., Valk, L. E., Hazen, A. C. M., Heringa, M., Kwint, H.-F., Zwart, D. L. M., Sporrong, S. K., Stewart, D., & van Dijk, L. (2024). Pharmacists' current and potential prescribing roles in primary care in the Netherlands: a case study. Journal of Interprofessional Care, 38(5), 787-798. https://doi.org/10.1080/13561820.2024.2374017
https://research-portal.uu.nl/ws/files/238683372/Pharmacists_current_and_potential_prescribing_roles_in_primary_care_in_the_Netherlands_a_case_study.pdf
Mertens, J. F., Kempen, T. G. H., Koster, E. S., Deneer, V. H. M., Bouvy, M. L., & van Gelder, T. (2024). Pharmacists and pharmacy students' perceptions on how a new teaching model supports their clinical decision-making. Currents in Pharmacy Teaching and Learning, 16(10), Article 102136. https://doi.org/10.1016/j.cptl.2024.102136
https://research-portal.uu.nl/ws/files/230491260/1-s2.0-S1877129724001680-main.pdf
Cam, H., Gillespie, U., Sporrong, S. K., Nielsen, E., Kempen, T. G. H., & Franzon, K. (2024). Failure to Involve Older Hospitalised Patients in Medication Decisions - a Change of Approach is Called For. Research in Social and Administrative Pharmacy, 20(2), 216-217. https://doi.org/10.1016/j.sapharm.2023.09.016
Kempen, T. G. H., van Dijk, L., Floor-Schreudering, A., Kohli, A., Kwint, H. F., Schackmann, L., van Tuyl, L. H. D., & Heringa, M. (2024). Potential for pharmacist prescribing in primary care: A Dutch citizen perspective. Exploratory Research in Clinical and Social Pharmacy, 14, Article 100453. https://doi.org/10.1016/j.rcsop.2024.100453
https://research-portal.uu.nl/ws/files/226639132/1-s2.0-S2667276624000507-main.pdf
Mertens, J. F., Kempen, T. G. H., Koster, E. S., Deneer, V. H. M., Bouvy, M. L., & van Gelder, T. (2024). Cognitive processes in pharmacists’ clinical decision-making. Research in Social and Administrative Pharmacy, 20(2), 105-114. https://doi.org/10.1016/j.sapharm.2023.10.007
http://@https://dspace.library.uu.nl/bitstream/handle/1874/434475/1-s2.0-S155174112300459X-main.pdf?sequence=1

Professional publications

Mertens, J., Koster, E., Deneer, V., Kempen, T., Bouvy, M., & van Gelder, T. (2024). 'MEER FOCUS OP KLINISCHE BESLUITVORMING IN ONDERWIJS'. Pharmaceutisch Weekblad, 159(4), 14-16.

2023

Scholarly publications

Cam, H., Wennlöf, B., Gillespie, U., Franzon, K., Nielsen, E. I., Ling, M., Lindner, K.-J., Kempen, T. G. H., & Kälvemark Sporrong, S. (2023). The complexities of communication at hospital discharge of older patients: a qualitative study of healthcare professionals' views. BMC Health Services Research, 23(1), 1-18. Article 1211. https://doi.org/10.1186/s12913-023-10192-5
http://@https://dspace.library.uu.nl/bitstream/handle/1874/434468/s12913-023-10192-5.pdf?sequence=1
Snijders, B. M. G., Kempen, T. G. H., Aubert, C. E., Koek, H. L., Dalleur, O., Donzé, J., Rodondi, N., O'Mahony, D., Gillespie, U., & Knol, W. (2023). Drug-related readmissions in older hospitalized adults: External validation and updating of OPERAM DRA prediction tool. Journal of the American Geriatrics Society, 71(12), 3848-3856. https://doi.org/10.1111/jgs.18575
http://@https://dspace.library.uu.nl/bitstream/handle/1874/434460/J_American_Geriatrics_Society_-_2023_-_Snijders_-_Drug_related_readmissions_in_older_hospitalized_adults_External_1_.pdf?sequence=1
Glans, M., Kempen, T. G. H., Jakobsson, U., Kragh Ekstam, A., Bondesson, Å., & Midlöv, P. (2023). Identifying older adults at increased risk of medication-related readmission to hospital within 30 days of discharge: development and validation of a risk assessment tool. BMJ Open, 13(8), Article e070559. https://doi.org/10.1136/bmjopen-2022-070559
http://@https://dspace.library.uu.nl/bitstream/handle/1874/434459/e070559.full.pdf?sequence=1
Kempen, T. G. H., Koumi, R., & Sporrong, S. K. (2023). Pharmacists in general practice: what do they do? A qualitative case study. International Journal of Clinical Pharmacy, 45(6), 1472–1482. https://doi.org/10.1007/s11096-023-01619-4
http://@https://dspace.library.uu.nl/bitstream/handle/1874/434458/s11096-023-01619-4.pdf?sequence=1
Kempen, T. G. H., Hedman, A. N., Hadziosmanovic, N., Lindner, KJ., Melhus, H., Nielsen, E. I., Sulku, J., & Gillespie, U. (2023). Risk factors for and preventability of drug‐related hospital revisits in older patients: A post‐hoc analysis of a randomized clinical trial. British Journal of Clinical Pharmacology, 89(5), 1575-1587. https://doi.org/10.1111/bcp.15621

2022

Scholarly publications

Kempen, T., Hedman, A., & Gillespie, U. (2022). Drug-related hospital admissions and emergency department visits: a feasibility study and an updated version of the AT-HARM10 assessment tool. Research Square. https://doi.org/10.21203/rs.3.rs-1466217/v1
Kempen, T. G. H., Hedman, A., & Gillespie, U. (2022). Drug-related emergency department visits in older patients: an applicability and reliability study of an existing assessment tool. International Journal of Clinical Pharmacy, 44, 1078–1082. https://doi.org/10.1007/s11096-022-01456-x
http://@https://dspace.library.uu.nl/bitstream/handle/1874/427964/s11096_022_01456_x.pdf?sequence=1

2021

Scholarly publications

Kempen, T. G. H., Bertilsson, M., Hadziosmanovic, N., Lindner, KJ., Melhus, H., Nielsen, E. I., Sulku, J., & Gillespie, U. (2021). Effects of Hospital-Based Comprehensive Medication Reviews Including Postdischarge Follow-up on Older Patients’ Use of Health Care: A Cluster Randomized Clinical Trial. JAMA network open, 4(4), Article e216303. https://doi.org/10.1001/jamanetworkopen.2021.6303
Cam, H., Kempen, T. G. H., Eriksson, H., Abdulreda, K., Franzon, K., & Gillespie, U. (2021). Assessment of requests for medication-related follow-up after hospital discharge, and the relation to unplanned hospital revisits, in older patients: a multicentre retrospective chart review. BMC Geriatrics, 21, Article 618. https://doi.org/10.1186/s12877-021-02564-5

2020

Scholarly publications

Kempen, T. G. H., Kälvemark, A., Gillespie, U., & Stewart, D. (2020). Comprehensive medication reviews by ward‐based pharmacists in Swedish hospitals: What does the patient have to say? Journal of Evaluation in Clinical Practice, 26(1), 149-157. https://doi.org/10.1111/jep.13121
Kempen, T. G. H., Kälvemark, A., Sawires, M., Stewart, D., & Gillespie, U. (2020). Facilitators and barriers for performing comprehensive medication reviews and follow-up by multiprofessional teams in older hospitalised patients. European Journal of Clinical Pharmacology, 76, 775–784. https://doi.org/10.1007/s00228-020-02846-8
Kempen, T. G. H., Cam, H., Kälvemark, A., Lindner, KJ., Melhus, H., Nielsen, E. I., Sulku, J., & Gillespie, U. (2020). Intervention fidelity and process outcomes of medication reviews including post‐discharge follow‐up in older hospitalized patients: Process evaluation of the MedBridge trial. Journal of Clinical Pharmacy and Therapeutics, 45(5), 1021-1029. https://doi.org/10.1111/jcpt.13128

2019

Scholarly publications

Kempen, T. G. H., Hedström, M., Olsson, H., Johansson, A., Ottoson, S., Al-Sammak, Y., & Gillespie, U. (2019). Assessment tool for hospital admissions related to medications: development and validation in older patients. International Journal of Clinical Pharmacy, 41, 198–206. https://doi.org/10.1007/s11096-018-0768-8
Kempen, T. G. H., Gillespie, U., Färdborg, M., McIntosh, J., Mair, A., & Stewart, D. (2019). A case study of the implementation and sustainability of medication reviews in older patients by clinical pharmacists. Research in Social and Administrative Pharmacy, 15(11), 1309-1316. https://doi.org/10.1016/j.sapharm.2018.12.006

2018

Scholarly publications

McIntosh, J., Alonso, A., MacLure, K., Stewart, D., Kempen, T., Mair, A., Castel-Branco, M., Codina, C., Fernandez-Llimos, F., Fleming, G., Gennimata, D., Gillespie, U., & Consortium, SIMPATHY. (2018). A case study of polypharmacy management in nine European countries: Implications for change management and implementation. PLoS One, 13(4), 1-20. Article e0195232. https://doi.org/10.1371/journal.pone.0195232
Kempen, T. G. H., & Melhus, H. (2018). A Trial of Blood-Pressure Reduction in Black Barbershops. The New England journal of medicine, 379(2). https://doi.org/10.1056/nejmc1806026

2017

Scholarly publications

SIMPATHY Consortium (2017). Guidance to manage inappropriate polypharmacy in older people: systematic review and future developments. Expert Opinion on Drug Safety, 16(2), 203-213. https://doi.org/10.1080/14740338.2017.1265503
SIMPATHY Consortium, & Kempen, T. (2017). A modified Delphi study to determine the level of consensus across the European Union on the structures, processes and desired outcomes of the management of polypharmacy in older people. PLoS One. https://doi.org/10.1371/journal.pone.0188348
http://@https://dspace.library.uu.nl/bitstream/handle/1874/429527/A_modified_Delphi_study_to_determine_the_level_of_consensus_across_the_European_Union_on_the_structures_processes_and_desired_outcomes_of_the_management_of_polypharmacy_in_older_people.pdf?sequence=1
Kempen, T. G. H., Bertilsson, M., Lindner, K.-J., Sulku, J., Nielsen, E. I., Högberg, A., Vikerfors, T., Melhus, H., & Gillespie, U. (2017). Medication Reviews Bridging Healthcare (MedBridge): Study protocol for a pragmatic cluster-randomised crossover trial. Contemporary Clinical Trials, 61, 126-132. https://doi.org/10.1016/j.cct.2017.07.019

2014

Scholarly publications

Kempen, T. G. H., van de Steeg-van Gompel, C. H. P. A., Hoogland, P., Liu, Y., & Bouvy, M. L. (2014). Large scale implementation of clinical medication reviews in Dutch community pharmacies: drug-related problems and interventions. International Journal of Clinical Pharmacy, 36(3), 630-635. https://doi.org/10.1007/s11096-014-9947-4
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