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Our Mission

Odense Deprescribing INitiative (ODIN) aims to facilitate rational use of medication through deprescribing research and implementation activities. ODIN assesses medication use and deprescribing opportunities for all patients, in particular older individuals and those with frailty and/or limited life expectancy.

ODIN is a collaboration between four clinical departments and research units at Odense University Hospital and University of Southern Denmark in Odense, Denmark. Together, ODIN spans clinical pharmacy, geriatrics, pharmacology, and general practice. The four research units have a long-standing publication record, using a wide range of research methodologies, from qualitative research to observational and clinical studies as well as implementation research.

ODIN is part of the task group for Seponeringslisten, an official list with deprescribing recommendations for selected medications, published yearly by the Danish Medicines Council. ODIN has also recently contributed to the development of a clinical guideline on deprescribing and prevention of polypharmacy in general practice, together with the Danish College of General Practitioners.

On this site, you can read more about the participants in ODIN and access ODIN’s current pipeline of activities and previous publications.

About us

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Carina Lundby

Hospital Pharmacy Funen, Odense University Hospital

The Hospital Pharmacy Research Unit focuses mainly on deprescribing research, with a particular emphasis on deprescribing in the last part of life, as well as research related to transitions of care and other clinical research, especially rational treatment of pain and constipation. Read more about it here.

This unit is represented by Assistant Professor Carina Lundby (pharmacist), who, in addition to her deprescribing research, is a founder and leader of the Network of European Researchers in Deprescribing (NERD) and is involved in organizing the International Conference on Deprescribing (ICOD).

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Jens Søndergaard

Research Unit For General Practice, University of Southern Denmark



The Research Unit of General Practice conducts research of high international quality, focusing on patient pathways, chronic disease, medication use, diagnostics, prevention, and health services research. The unit works closely with clinicians, patients, and the healthcare system to generate knowledge that can be translated into better treatment and more patient centered practice. Read more about it here.

This unit is led by Professor Jens Søndergaard (general practitioner, clinical pharmacologist), who has published more than 500 peer reviewed papers spanning broadly within general practice, including rational use of medication, multimorbidity, early diagnostics, and patient centered treatment.

Karen Andersen-Ranberg

Department of Geriatric Medicine, Odense University Hospital

The Geriatric Research Unit is cross-disciplinary and combines quantitative and qualitative methods across geriatric medicine, nursing care, frailty and vulnerability, person-centered physiotherapy, tele-geriatrics, and geriatric outreach services. Its main focus areas are falls, clinical pharmacy, and cross-sectoral research. Read more about it here.

This unit is represented by Professor Karen Andersen-Ranberg (consultant, geriatrician), who has published more than 150 peer-reviewed papers on ageing, public health, geriatric medicine, and medication use, including falls assessment, outreach services, home visits, and frailty.

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Per Damkier

Department of Clinical Pharmacology, Odense University Hospital



The Department of Clinical Pharmacology has a broad portfolio of clinical services. The department provides decision support for hospital owners on the use of expensive medications and contributes substantially to the Danish Medicines Council. It offers decision support for physicians facing medication related challenges in individual patients and runs an online consultancy service for practitioners with challenging polypharmacy patients. The Clinical Pharmacology Research Unit embraces many aspects of clinical pharmacology, from pharmacogenomics and sustainable medication use to polypharmacy and rational use of medication in everyday clinical practice. Read more about it here.

This unit is represented by Professor Per Damkier (consultant, clinical pharmacologist), who has published more than 200 peer reviewed papers spanning broadly across most aspects of medication use.

Projects

Attitudes towards deprescribing

A portfolio of projects including literature reviews, qualitative studies and quantitative studies to describe patient’s, relatives’ and health care professionals’ barriers regarding deprescribing.

For older individuals reaching the last years of life, continued use of some medications may be of questionable benefit due a limited life expectancy and shifts in goals of care. In such situations, it may therefore be relevant to reduce or discontinue treatment with these medications. Despite this, a number of barriers towards deprescribing have been identified among both patients, relatives, and health care professionals.

In a series of papers, we explore attitudes towards deprescribing from the perspective of both patients, relatives, and health care professionals. We do this to get a better understanding of what may hinder as well as facilitate deprescribing, as this will help us developing interventions, tools, and strategies that may improve the uptake of deprescribing in clinical practice. We explore patient/relative and prescriber perspectives through both systematic reviews, qualitative studies, and surveys.

ODIN-1

A primary care RCT testing a comprehensive deprescribing intervention on quality of life among patients with limited life expectancy.

Numerous deprescribing interventions have been shown to be feasible, safe, and generally effective at reducing medication use. However, the evidence of impact on patient-important outcomes, such as quality of life, is limited.

With ODIN-1, we will test whether a comprehensive and patient-centered deprescribing intervention can improve quality of life as well as other outcomes among older patients with limited life expectancy. The intervention will be focused on aligning medical treatment with patient’s preferences, and it will be carried out in collaboration between patient and general practitioner.

The trial will be initiated during the summer of 2020 and run for one year. The study is funded by the VELUX Foundation.

 

Patient preferences for discussing life expectancy

A portfolio of studies exploring patients’ preferences for discussing life expectancy.

 

A patient’s estimated life expectancy is an essential part of individual care planning in the last part of life. A careful discussion about life expectancy between patients and physicians may assist patients in making informed decisions related to e.g. medication use and deprescribing, screening needs, and personalized care. Several studies have explored patient preferences for discussing life expectancy but the results are conflicting. Further, previous research has primarily focused on the preferences of patients with cancer and to a lesser extent other patient populations where discussions about life expectancy may also be particularly relevant.

In two studies, we explore patient preferences for discussing life expectancy. In the first study, we provide a comprehensive overview of the literature on patient preferences for discussing life expectancy and, in the second study, we examine these preferences in a Danish geriatric outpatient setting.

Characteristics of and use of medication among Danish nursing home residents

A portfolio of register-based studies examining characteristics of and drug use patterns in the Danish nursing home population.

Admission to nursing home generally indicates an altered disease status, a certain level of frailty, and a relatively limited life expectancy, thus representing a time where treatment goals might change from preventive to symptomatic control. To ensure appropriate medication use among nursing home residents, insight into characteristics of and use of medication among nursing home residents is needed.

In a series of studies, we use the nationwide Danish health registries to examine characteristics of and drug use patterns in the Danish nursing home population.

Publications

2026

Deprescribing Methadone for Chronic Non-Cancer Pain: Management of Withdrawal Symptoms (in Danish) (Link)

Drastrup AM, Eltved R, Lundby C.• Ugeskr Laeger. 2026;188:V06250485.

The Significance of Frailty in the Assessment of Polypharmacy and Deprescribing (in Danish) (Link)

Schjørring CB, Ryg J, Christensen MB, Holm A, Lundby C, Sonne DP, Madsen GK, Schultz M.• Ugeskr Laeger. 2026;188:V01260031.

Afmedicinering kræver både mod og inspiration (in Danish) (Link)

Pottegård A, Lundby C.• Ugeskr Laeger. 2026;188:V205208.

Continuing the Progress in Deprescribing: Learnings From the Second International Conference on Deprescribing (Link)

Lundby C, Thompson W, Fournier JP.• Basic Clin Pharmacol Toxicol. 2026;138(5):e70231

2025

Studying Deprescribing Using Routinely Collected Health Care Data: Old Challenges and New Opportunities (Link)

Wastesson JW, Kamgang KHS, Lundby C, Pottegård A.• Basic Clin Pharmacol Toxicol. 2025;137(5):e70131.

Tools for Evaluating Potentially Inappropriate Medication Use in Older Adults: A Scoping Review Assessing Suitability for Register-Based Research (Link)

Mose K, Lundby C, Rasmussen L, Pottegård A.• Basic Clin Pharmacol Toxicol. 2025;137(4):e70094.

The Evidence and Impact of Deprescribing on Sarcopenia Parameters: A Systematic Review (Link)

Ibrahim K, Cox NJ, Lim SER, Radcliffe E, Lundby C, Prokopidis K, Thompson W, Moriarty F.• BMC Geriatr. 2025;25(1):158.

Reducing Potentially Inappropriate Polypharmacy at a National and International Level: The Impact of Deprescribing Networks (Link)

McDonald EG, Lundby C, Thompson W, Boyd C, Farrell B, Gagnon C, Herbin J, Khuong N, Moriarty F, Pierson T, Scott S, Scott IA, Silvius J, Spinewine A, Steinman MA, Tannenbaum C, Trimble J, Turner JP, Reeve E.• Expert Rev Clin Pharmacol. 2024;17(5-6):433-440.

Measuring Quality of Life in Deprescribing Trials: A Scoping Review (Link)

Thompson W, Lundby C, Bleik A, Waring H, Hong JA, Xi C, Hughes C, Salzwedel DM, McDonald EG, Pruskowski J, Scott S, Spinewine A, Kutner JS, Graabæk T, Elmi S, Moriarty F.• Drugs Aging. 2024;41(5):379-397.

Deprescribing Antihypertensive Medications in Older People: A Systematic Review and a Meta-Analysis (Link)

Floriani C, Minchio G, Schulthess-Lisibach AE, Lundby C, Andersen MJL, Zangger M, Efthimiou O, Vallejo-Yagüe E, Neuner-Jehle S, Thompson W, Søndergaard J, McCarthy LM, Lunny C, Poortvliet RKE, Gussekloo J, Daskalopoulou S, von Gernler M, Streit S.• BMC Geriatr. 2025;26(1):222.

Tracking Nursing Home Residents in Denmark: The Danish Nursing Home Resident Database (Link)

Schaller MC, Pottegård A, Lundby C, Hansen L, Toftlund SA, Reilev M.• Scand J Public Health. 2025;14034948251391588.

Psychotropic Drug Use Among Danish Care Home Residents During and After the COVID-19 Pandemic (Link)

Harbi H, Rasmussen L, Bjørk E, Højlund M, Lundby C, Søndergaard J, Ryg J, Kildegaard H.• J Am Geriatr Soc. 2025;74(2):493-499.

Discontinuing Chronic Medications Suggested for Deprescribing in Routine Clinical Practice: Nationwide Evidence From Routinely Collected Data in Swedish Older Adults (Link)

Kamgang KHS, Lundby C, Szilcz M, Johnell K, Wastesson JW.• Basic Clin Pharmacol Toxicol. 2025;137(3):e70093.

Use of Potentially Inappropriate Medications Identified by STOPPFrail Among Danish Care Home Residents: A Nationwide Cohort Study (Link)

Mose K, Lundby C, Ernst MT, Ryg J, Pottegård A, Rasmussen L.• Basic Clin Pharmacol Toxicol. 2025;137(2):e70076.

Medication Use Patterns Among Older Patients in Temporary Stays in Denmark (Link)

Harbi H, Lundby C, Jensen PB, Larsen SP, Rørbæk LG, Ravn-Nielsen LV, Ryg J, Reilev M, Edwards K, Pottegård A.• Eur Geriatr Med. 2025;16(4):1427-1435.

Characteristics and Care Trajectories of Older Patients in Temporary Stays in Denmark (Link)

Harbi H, Lundby C, Jensen PB, Larsen SP, Rørbæk LG, Ravn-Nielsen LV, Ryg J, Reilev M, Edwards K, Pottegård A.• Eur Geriatr Med. 2025;16(4):1437-1445.

2024

Anticholinergic Deprescribing: A Case Report Demonstrating Improved Cognition and Function With Minimal Adverse Withdrawal Effects (Link)

Lundby C, Farrell B, Wilson A.• Br J Clin Pharmacol. 2024;90(7):1741-1744.

Antihypertensive Deprescribing in Frail Long-Term Care Residents (OptimizeBP): Protocol for a Prospective, Randomised, Open-Label Pragmatic Trial (Link)

Kraut RY, Youngson E, Sadowski CA, Bakal JA, Faulder D, Korownyk C, Vucenovic A, Eurich DT, Manca DP, Lundby C, Kivi P, Manville M, Garrison SR.• BMJ Open. 2024;14(8):e084619.

Medication Management in Danish Home Health Care: Mapping of Tasks and Time Consumption (Link)

Stubmark H, Post S, Bjørk E, Pottegård A, Lundby C.• Basic Clin Pharmacol Toxicol. 2024;135(4):464-474.

Use of Antibiotics for Urinary Tract Infections up to and After Care Home Admission in Denmark: A Nationwide Study (Link)

Bjørk E, Aabenhus R, Larsen SP, Ryg J, Henriksen DP, Lundby C, Pottegård A.• Eur Geriatr Med. 2024;15(3):797–805.

Attitudes Towards Deprescribing in Geriatric Psychiatry: A Survey Among Older Psychiatric Outpatients (Link)

Lundby C, Nielsen M, Simonsen T, Galsgaard S, Haastrup MB, Ravn-Nielsen LV, Pottegård A.• Basic Clin Pharmacol Toxicol. 2024;134(1):97-106.

Measuring Quality of Life in Deprescribing Trials: A Scoping Review (Link)

Thompson W, Lundby C, Bleik A, Waring H, Hong JA, Xi C, Hughes C, Salzwedel DM, McDonald EG, Pruskowski J, Scott S, Spinewine A, Kutner JS, Graabæk T, Elmi S, Moriarty F.• Drugs Aging. 2024;41(5):379-397.

Advancing Deprescribing: Learnings From the First International Conference on Deprescribing (Link)

Lundby C, Thompson W.• Basic Clin Pharmacol Toxicol. 2024;134(1):3-5.

2023

The State of Deprescribing Research: How Did We Get Here? (Link)

Reeve E, Thompson W, Boyd C, Lundby C, Steinman MA.• Basic Clin Pharmacol Toxicol. 2023;133(6):657-660.

Recommendations on Deprescribing of Bisphosphonates in Osteoporosis Guidelines: A Systematic Review (Link)

Jepsen DB, Bergen ES, Pan J, van Poelgeest E, Osman A, Burghle A, Ryg J, Thompson W, Lundby C.• Eur Geriatr Med. 2023;14(4):747-760.

Ten Deprescribing Articles You Should Know About: A Guide for Newcomers to the Field (Link)

Thompson W, Reeve E, McDonald EG, Farrell B, Scott S, Steinman MA, Morin L, Lundby C.• Basic Clin Pharmacol Toxicol. 2023;133(6):661-664.

2022

Deprescribing in Danish Clinical Treatment Guidelines (in Danish) (Link)

Lundby C, Burghle A, Ryg J, Abuna L, Alnabhan WA, Thanikaikumaran JK, Esmael A, Søndergaard J, Pottegård A.• Ugeskr Laeger. 2022;184(27):V01220063.

Afmedicinering i Almen Praksis: Udfordringer og Muligheder (In Danish) (Link)

Lundby C, Henriksen DP, Ryg J, Søndergaard J, Thonesen IL, Pottegård A.• Rationel Farmakoterapi, Sundhedsstyrelsen. 2022;(1).

Preferences for Discussing Life Expectancy: A Cross-Sectional Survey Among Geriatric Outpatients in Denmark (Link)

Bjørk E, Lundby C, Ryg J, Thompson W.• J Gen Intern Med. 2022;37(12):3224-7.

Antihypertensive Medication in Frail Older Adults: A Narrative Review Through a Deprescribing Lens (Link)

Kraut R, Lundby C, Babenko O, Kamal A, Sadowski CA.• American Heart Journal Plus – Cardiology Research and Practice. 2022;17:100166.

2021

Patient Preferences for Discussing Life Expectancy: A Systematic Review (Link)

Bjørk E, Thompson W, Ryg J, Gaardboe O, Jørgensen TL, Lundby C.• J Gen Intern Med. 2021;36(10):3136-47.

Considerations Regarding Choice of Primary Outcome in Clinical Trials in Deprescribing (Link)

Lundby C, Pottegård A.• Br J Clin Pharmacol. 2021; 88(7):3032-4.

Use of Sedating Medications Around Nursing Home Admission in Denmark (Link)

Pottegård A, Lundby C, Jarbøl DE, Larsen SP, Hoppe BC, Hoffmann H, Thompson W.• Pharmacoepidemiol Drug Saf. 2021;30(11):1560-5.

Attitudes Towards Deprescribing: The Perspectives of Geriatric Patients and Nursing Home Residents (Link)

Lundby C, Glans P, Simonsen T, Søndergaard J, Ryg J, Lauridsen HH, Pottegård A.• J Am Geriatr Soc. 2021;69(6):1508-18.

Translation, Cross-Cultural Adaptation, and Validation of Danish Version of the Revised Patients’ Attitudes Towards Deprescribing (rPATD) Questionnaire: Version for Older People With Limited Life Expectancy (Link)

Lundby C, Simonsen T, Ryg J, Søndergaard J, Pottegård A, Lauridsen HH.• Res Social Adm Pharm. 2021;17(8):1444-1452.

“I Simply Don’t Know, Because I Don’t Know Which Drugs I Get”: Perspectives on Deprescribing Among Older Adults With Limited Life Expectancy and Their Relatives (Link)

Graabæk T, Lundby C, Ryg J, Søndergaard J, Pottegård A, Nielsen D.• Basic Clin Pharmacol Toxicol. 2021;128(1):115-127.

Statin Use and Discontinuation in Danes Age 70 and Older: A Nationwide Drug Utilisation Study (Link)

Thompson W, Jarbøl DE, Nielsen JB, Haastrup P, Pottegård A.• Age Ageing. 2021;50(2):554-8.

2020

Attitudes Towards Deprescribing Among Older Adults With Limited Life Expectancy and Their Relatives: A Systematic Review (Link)

Burghle A, Lundby C, Ryg J, Søndergaard J, Pottegård A, Nielsen D, Graabæk T.• Drugs Aging. 2020;37(7):503–20.

Discussing Proton Pump Inhibitor Deprescribing: The Views of Danish GPs and Older Patients (Link)

Thompson W, Nissen M, Haastrup P, Le JV, Lundby C, Nielsen JB, Jarbøl DE.• BMC Fam Pract. 2020;21(1):160.

Use of Medication Among Nursing Home Residents: A Danish Drug Utilisation Study (Link)

Lundby C, Jensen J, Larsen SP, Hoffmann H, Pottegård A, Reilev M.• Age Ageing. 2020;49(5):814-20.

Nursing Home Residents’ Thoughts on Discussing Deprescribing of Preventive Medications (Link)

Thompson W, Jacobsen IT, Jarbøl DE, Haastrup P, Nielsen JB, Lundby C.• Drugs Aging. 2020;37:187–92.

Morbidity and Mortality Among Older People Admitted to Nursing Home (Link)

Reilev M, Lundby C, Jensen J, Larsen SP, Hoffmann H, Pottegård A.• Age Ageing; 2020;49(1):67-73.

‘… Above All, It’s a Matter of This Person’s Quality of Life’: Health Care Professionals’ Perspectives on Deprescribing in Older Patients With Limited Life Expectancy (Link)

Lundby C, Graabæk T, Ryg J, Søndergaard J, Pottegård A, Nielsen D.• Gerontologist. 2020;60(3):439-449.

2019

Statins in Older Danes: Factors Associated With Discontinuation Over the First 4 Years of Use (Link)

Thompson W, Jarbøl DE, Haastrup P, Nielsen JB, Pottegård A.• J Am Geriatr Soc. 2019;67(10):2050-7.

Discontinuation of Therapy Among COPD Patients Who Experience an Improvement in Exacerbation Status (Link)

Reilev M, Kristensen KB, Søndergaard J, Henriksen DP, Thompson W, Pottegård A.• Eur J Clin Pharm. 2019;75(7):1025-32.

Health Care Professionals’ Attitudes Towards Deprescribing in Older Patients With Limited Life Expectancy: A Systematic Review (Link)

Lundby C, Graabæk T, Ryg J, Søndergaard J, Pottegård A, Nielsen D.• Br J Clin Pharmacol. 2019;85:868–892.

Tools for Deprescribing in Frail Older Persons and Those With Limited Life Expectancy: A Systematic Review (Link)

Thompson W, Lundby C, Graabæk T, Nielsen D, Ryg J, Søndergaard J, Pottegård A• J Am Geriatr Soc. 2019;67:172–180.

#ICOD

ODIN is actively involved in organizing the International Conference on Deprescribing (ICOD). We secured funding for and co-hosted the first ICOD in Denmark in 2022 and have since been part of the organizing teams for the second and third ICOD, held in France (2024) and Canada (2026).

Research presentations and discussions from the first ICODs have resulted in two successful special issues on deprescribing in the scientific journal Basic & Clinical Pharmacology & Toxicology. You can find the two editorials here and here. A third special issue is currently welcoming submissions on deprescribing-related research.

Stay tuned for information about the fourth ICOD!

Contact







If you wish to get in touch with us, send a mail to
contact@deprescribing-odin.com