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20-4-2015 Woodennature/CC-BY-SA-3.0 http://theintelligence.de Medication safety in vulnerable patient groups - Elderly patients - 20th Congress of EAHP 25-27 March, 2015, Hamburg, Germany Dr. rer. nat. Beate Wickop - Pharmacist Conflict of

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  1. 20-4-2015 Woodennature/CC-BY-SA-3.0 http://theintelligence.de Medication safety in vulnerable patient groups - Elderly patients - 20th Congress of EAHP 25-27 March, 2015, Hamburg, Germany Dr. rer. nat. Beate Wickop - Pharmacist Conflict of interest: nothing to disclose. 1

  2. 20-4-2015 Control questions 1. Should all medicines be started with the same initial dose in a 40-year-old and an 80-year-old? 2. Is creatinine a reliable indicator of glomerular filtration rate in the elderly subject? 3. Use of PIM is rarely appropriate in elderly patients – correct? Learning Objectives parameters, that influence pharmacokinetics and pharmacodynamics in elderly patients different classification systems for PIM (Potentially Inappropriate Medication) problems with the application of drugs in elderly patients de.dreamstime.com, gegenwind.windpark-laufenburg.de, www.vigo.de 2

  3. 20-4-2015 Global Demographics: From pyramid (1980) to bell (2015) to barrel (2050) The situation in Europe 3

  4. 20-4-2015 Elderly patients are the most important target group of pharmacotherapy. DDD per insurant age group Schwabe U, Paffrath D. Arzneiverordnungs-Report, Aktuelle Daten, Kosten, Trends und Kommentare. Springer; 2008. Multiple co-morbidities  polypharmacy Beware of: • drugs that are suboptimal or lacking an indication • therapeutic duplication • multiple prescribing doctors • drug interactions • vicious cycle of polypharmacy • complementary medicines nursing.advanceweb.com 4

  5. 20-4-2015 A non-uniform group www.apotheken-umschau.de www.abendblatt.de www.allgemeinarzt-online.de „ Go-go-patients “ „ Slow-go-patient “ „ No-go-patient “ Alterations in pharmacokinetics • reduction in renal clearance • drug absorption changes little • altered volume of drug distribution • loss of first pass metabolism medicalgraphics.de 5

  6. 20-4-2015 Alterations in pharmacodynamics • increased central nervous system sensitivity • increased sensitivity for anticholinergic effects Therapy based on guidelines? • patients > 65 rarely enrolled in clinical trials • patients on polypharmacy often excluded from clinical trials  only a few guidelines adequately address the elderly 6

  7. 20-4-2015 Case example 83-year-old woman PIM = P otentially I nappropriate M edication Woodennature/CC-BY-SA-3.0 • unfavourable balance of risks and benefits • limited effectiveness in older adults • carry an increased risk of adverse drug events • with certain diseases or syndromes 7

  8. 20-4-2015 International PIM-lists author country year Beers et al. USA 1991 McLeod et al. Canada 1997 Fick et al. USA 2003 (update Beers-list) Laroche et al. France 2007 Gallagher, O’Mahony et al.: STOPP Ireland 2008 Rognstad et al. Norway 2009 Holt et al.: PRISCUS Germany 2010 Wehling et al.: FORTA Germany 2011 (validation 2014) 2012 (2 nd update Beers-list) American Geriatrics Society: USA Beers Criteria 2012 O’Mahony et al.: STOPP/START Ireland 2014 (version 2) 2012 AGS Beers Criteria 53 medications or medication classes divided into three categories 1) PIM < 2) PIM with certain diseases and syndromes 3) PIM to be used with caution in older adults AGS 2012 Beers Criteria Update Expert Panel. American Geriatrics Society updated Beers Criteria for potentially inappropriate medication use in older adults. J Am Geriatr Soc. 2012 60(4):616-31. 8

  9. 20-4-2015 STOPP Screening Tool of Older P ersons’ potentially inappropriate Prescriptions 65 clinically significant criteria for potentially inappropriate prescribing C. Gastrointestinal System 1. Diphenoxylate, loperamide or codeine phosphate for treatment of diarrhoea of unknown cause (risk of delayed diagnosis, may exacerbate constipation with overflow diarrhoea, may precipitate toxic megacolon in inflammatory bowel disease, may delay recovery in unrecognised gastroenteritis). 2. Diphenoxylate, loperamide or codeine phosphate for treatment of severe infective gastroenteritis i.e. bloody diarrhoea, high fever or severe systemic toxicity (risk of exacerbation or protraction of infection) 3. Prochlorperazine (Stemetil) or metoclopramide with Parkinsonism (risk of exacerbating Parkinsonism). 4. PPI for peptic ulcer disease at full therapeutic dosage for > 8 weeks (earlier discontinuation or dose reduction for maintenance/prophylactic treatment of peptic ulcer disease, oesophagitis or GORD indicated). 5. Anticholinergic antispasmodic drugs with chronic constipation (risk of exacerbation of constipation). 4. PPI for peptic ulcer disease at full therapeutic dosage for > 8 weeks (earlier discontinuation or dose reduction for maintenance/prophylactic treatment of peptic ulcer disease, oesophagitis or GORD indicated). Gallagher P et al. STOPP and START. Consensus validation. Int J Clin Pharmacol Ther. 2008;46(2):72 – 83 START Screening Tool to Alert doctors to the Right Treatment 22 evidence-based prescribing indicators for commonly encountered diseases (iii) Calcium and vitamin D supplement in patients with known osteoporosis (previous fragility fracture, acquired dorsal kyphosis). P. J. Barry et al. Age Ageing 2007;36:632-638 9

  10. 20-4-2015 FORTA - Fit for the aged 4 categories: A – Absolutely, B – Beneficial, C – Careful, D – Don‘t 190 items FORTA Class Expert ratings on a (original numerical scale FORTA class A=1, B=2, C=3, D=4 in parentheses Consensus if different coefficient, from Round 1 BPSD: SLEEP DISORDERS consensus Nr. of (cutoff Selection of pertinent comments given by participating experts results) raters 0.800) Mean; Mode during the consensus procedure Substance/group Slow-release melatonin C 18 0.833 3.1; 3 (2-4 mg) Zopiclone (3.75-7.5 mg) C 18 1.000 3.0; 3 Caution: not for long-term use Tetracyclic antidepressant C 20 (R1) 0.775 3.0; 3 (R1) Recommendation : lowest possible dosages recommended Mirtazapine (15-30mg) 20 (R2) 3.0; 3 (R2) Tricyclic antidepressant C 18 0.801 3.4; 3 Recommendation : other substances should be favored when Doxepine (25-50mg) symptoms of depression are not present Caution : anticholinergic side effects Beers Criteria versus STOPP outcomeresources.com getselfhelp.co.uk Age Ageing. 2008;37(6):673. Arch Intern Med. 2011;171(11):1013 10

  11. 20-4-2015 STOPP: 51.3% PIM prevalence Beers ‘ : 30.4% • Prevalence of potentially inappropriate prescribing in an acutely ill population of older patients admitted to six European hospitals. Gallagher P et al. (Eur J Clin Pharmacol. 2011 Nov;67(11):1175-88.) • Prevalence of potentially inappropriate medications and risk of adverse clinical outcome in a cohort of hospitalized elderly patients: results from the REPOSI Study. Beers ‘ 2003: 20.1% Pasina L et al. (J Clin Pharm Ther. 2014 Oct;39(5):511-5.) Beers ‘ 2012: 23.5% • STOPP better than Beers‘ in Europe? • Is there a European PIM-Tool? PIM-lists are variable in form and content - Results from a study conducted at UKE (Germany) 11

  12. 20-4-2015 GERAS – The UKE-PIM-Tool 4. Procedure by insomnia In patients aged > 65 years use of zopiclone 3.75 mg is recommended. Compliance – specific barriers • polypharmacy • cognitive impairment • forgetfulness • lack of understanding • handling of medicines • problems opening packaging due to loss of fine motor skills • swallowing problems • vision loss • … www.vigo.de 12

  13. 20-4-2015 Sensible prescribing in older patients • Is it needed? • Start low, go slow! • Keep it simple. • Review regularly. • Work in teams. www.de.123rf.com Take home messages Prescribing of a new drug – if: „Start low, go slow!“ PIM should be avoided in the elderly Handling of medicines can be a problem in the elderly  non-compliance printcopyfactory.com, gegenwind.windpark-laufenburg.de, www.vigo.de 13

  14. 20-4-2015 Control questions 1. Should all medicines be started with the same initial dose in a 40-year-old and an 80-year-old?  no 2. Is creatinine a reliable indicator of glomerular filtration rate in the elderly subject?  no 3. Use of PIM is rarely appropriate in elderly patients – correct?  yes www.aktiv-online.de contact: b.wickop@uke.de Dr. Beate Wickop, University Medical Centre Hamburg-Eppendorf, Pharmacy, Martinistr. 52, 20246 Hamburg, Germany 14

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