Title {1}	Tailored interventions to improve adherence to medication in elderly patients with Parkinson’s disease: A study protocol for a randomized controlled trial (AdhCare)
Trial registration {2a and 2b}.	Trial registration: DRKS00023655 German Clinical Trials Register (DRKS) Date of registration in DRKS: 24 Feb 2021 Last update in DRKS: 22 Mar 2023
Protocol version {3}	Version 2.0, 14 Aug 2023
Funding {4}	This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) Clinician Scientist Program OrganAge funding number 413668513 by the Interdisciplinary Center of Clinical Research of the Medical Faculty Jena and by a Bundesministerium für Bildung und Forschung grant to HM Mühlhammer, née Zipprich, and T Prell (01GY1804).
Author details {5a}	Sarah Mendorf1*, Ulrike Teschner1, Thomas Lehmann3, Tino Prell2, Hannah Mühlhammer1,2 1 Department of Neurology, Jena University Hospital, Jena, Germany 2 Department of Geriatrics, Halle University Hospital, Halle, Germany 3 Institute of Medical Statistics, Computer and Data Sciences, Jena University Hospital, Jena, Germany *Correspondence: sarah.mendorf@med.uni-jena.de; Tel.: +49-3641-9323511
Name and contact information for the trial sponsor {5b}	n/a, as the study was not sponsored
Role of sponsor {5c}	n/a, as the study was not sponsored. The funders had no role in the study design, decision to publish, or writing of the manuscript