Tailored interventions to improve adherence to medication in elderly patients with Parkinson’s disease: a randomized controlled trial

Organizational Data

DRKS-ID:
DRKS00023655
Recruitment Status:
Recruiting complete, study continuing
Date of registration in DRKS:
2021-02-24
Last update in DRKS:
2023-03-22
Registration type:
Prospective

Acronym/abbreviation of the study

AdhCare

URL of the study

No Entry

Brief summary in lay language

Many people are unable or unwilling to take their medication as agreed with their treating physician. This so-called non-adherence causes high costs, is associated with poorer health, increased hospital treatment and poorer quality of life. Among others, three broad patterns of non-adherence can be described: 1) patients modify their prescribed medications without consulting physician (e.g., reduce the dose), 2) patients have poor knowledge about their medication, and 3) patients forget to take their medications. With this randomized controlled intervention study, we aim to specifically address these patterns of non-adherence in elderly non-adherent patients. To do so, we compare patients with Parkinson´s disease who receive an intervention adapted to the patterns of non-adherence (AdhCare arm) with patients who do not receive an intervention (control arm). We want to test if such an intervention leads to better medication adherence and thus better mobility and body function after 6 months.

Brief summary in scientific language

The aim of the study is to evaluate the effectiveness of an individualized intervention to enhance adherence in terms of motor function in older people with Parkinson's disease. It is based on the NeuGerAdh study (DRKS00016774), a longitudinal observational study of adherence in elderly patients with neurological disorders. Already in previous studies we were able to show that non-adherence has different reasons or patterns: (1) modifications of medication without consulting physician, (2) lack of knowledge about the prescribed medication, and (3) forgetting to take the medication. We will conduct a randomized controlled trial to test the effectiveness of AdhCare. AdhCare is an individualized intervention to improve adherence, tailored to each patient's reason for non-adherence. The primary endpoint of the study is motor function assessed with the combined MDS-UPDRS II and III (revised Unified Parkinson's Disease Rating Scale) after 6 months in the control vs. AdhCare arm (Intent-To-Treat). Secondary outcomes are self-reported adherence, pill count, and number of physician visits. We will also qualitatively assess perceptions of the intervention as well as barriers and facilitators to implementation.

Health condition or problem studied

Free text:
Non-Adherence
ICD10:
G20 - Parkinson disease
Healthy volunteers:
No

Interventions, Observational Groups

Arm 1:
AdhCare: All patients in this group receive a tailored intervention to improve adherence depending on the individual reasons of non-adherence: - Standardized informational talk to improve patient empowerment to take responsibility and control of their own health. - Written summary of the most important aspects for their individual improvement of adherence. - Their physician, who continues treatment, will be contacted and informed about the study and the individual patient’s adherence-problems and barriers and possible strategies to minimize non-adherence in the individual patient. - A follow-up telephone call with the patient to reinforce the respective focus about the medications and adherence.
Arm 2:
Control: All patients in this group will receive standard information about the course and therapy of the Parkinson’s disease. In the form of: - An informative conversation - Written-down information (leaflet) - Follow-up telephone call about course of disease and possible therapies.

Endpoints

Primary outcome:
The primary endpoint in this study is motor function assessed with the combined MDS-UPDRS II and MDS-UPDRS III (revised Unified Parkinson's Disease Rating) after 6 months in the control vs. AdhCare arm (Intent-To-Treat).
Secondary outcome:
Self-reported adherence (SAMS), Medication adherence scores, Number of Primary Care Visits. We will also qualitatively evaluate the perception of intervention and barriers and facilitators for the implementation. Will be assessed after 3 and 6 month.

Study Design

Purpose:
Treatment
Allocation:
Randomized controlled study
Control:
  • Other
Phase:
N/A
Study type:
Interventional
Mechanism of allocation concealment:
No Entry
Blinding:
Yes
Assignment:
Parallel
Sequence generation:
No Entry
Who is blinded:
  • Assessor
  • Caregiver
  • Data analyst
  • Patient/subject

Recruitment

Recruitment Status:
Recruiting complete, study continuing
Reason if recruiting stopped or withdrawn:
No Entry

Recruitment Locations

Recruitment countries:
  • Germany
Number of study centers:
Monocenter study
Recruitment location(s):
  • University medical center Department of Neurology Jena

Recruitment period and number of participants

Planned study start date:
2021-04-01
Actual study start date:
2021-04-26
Planned study completion date:
2023-09-30
Actual Study Completion Date:
No Entry
Target Sample Size:
128
Final Sample Size:
132

Inclusion Criteria

Sex:
All
Minimum Age:
60 Years
Maximum Age:
no maximum age
Additional Inclusion Criteria:
- The patient is clinically diagnosed with Parkinson‘s disease according to the MDS-criteria - Montreal cognitive assessment (MoCA) ≥ 19/30 points - Patient manages his medication independently - Presence of self-reported non-adherence according to the German Stendal Adherence with Medication Score (SAMS > 1) - Informed consent is obtained from the participant

Exclusion Criteria

- Acute psychotic symptoms, delirium - Montral cognitive assessment (MoCA) < 19/30 - Patient is not actively involved in drug management (e.g., bedridden in nursing home) - Inability to provide informed consent

Addresses

Primary Sponsor

Address:
Department of Neurology, Jena University Hospital
PD Dr. Tino Prell
Am Klinikum 1
07747 Jena
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry
Investigator Sponsored/Initiated Trial (IST/IIT):
Yes

Contact for Scientific Queries

Address:
Department of Neurology, Jena University Hospital
PD Dr. Tino Prell
Am Klinikum 1
07747 Jena
Germany
Telephone:
+49 3641 9 323497
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Contact for Public Queries

Address:
Department of Neurology, Jena University Hospital
Dr. Hannah Mühlhammer
Am Klinikum 1
07747 Jena
Germany
Telephone:
+49 3641 9 323546
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Principal Investigator

Address:
Department of Neurology, Jena University Hospital
PD Dr. Tino Prell
Am Klinikum 1
07747 Jena
Germany
Telephone:
+49 3641 9 323497
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Sources of Monetary or Material Support

Public funding institutions financed by tax money/Government funding body (German Research Foundation (DFG), Federal Ministry of Education and Research (BMBF), etc.)

Address:
Bundesministerium für Bildung und Forschung Dienstsitz Berlin
Friedrichstraße 130 B
10117 Berlin
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.bmbf.de

Public funding institutions financed by tax money/Government funding body (German Research Foundation (DFG), Federal Ministry of Education and Research (BMBF), etc.)

Address:
Deutsche Forschungsgemeinschaft
Kennedyallee 40
53175 Bonn
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
http://www.dfg.de

Public funding institutions financed by tax money/Government funding body (German Research Foundation (DFG), Federal Ministry of Education and Research (BMBF), etc.)

Address:
Interdisziplinäres Zentrum für Klinische Studien (IZKF)
Salvador-Allende-Platz 29
07747 Jena
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Ethics Committee

Address Ethics Committee

Address:
Ethik-Kommission der Friedrich-Schiller-Universität Jena an der Medizinischen Fakultät
Bachstr. 18 Gebäude 1
07740 Jena
Germany
Telephone:
+49-3641-9391191
Fax:
+49-3641-9391192
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Vote of leading Ethics Committee

Vote of leading Ethics Committee
Date of ethics committee application:
2021-01-26
Ethics committee number:
2021-2091-BO
Vote of the Ethics Committee:
Approved
Date of the vote:
2021-02-23

Further identification numbers

Other primary registry ID:
No Entry
EudraCT Number:
No Entry
UTN (Universal Trial Number):
No Entry
EUDAMED Number:
No Entry

IPD - Individual Participant Data

Do you plan to make participant-related data (IPD) available to other researchers in an anonymized form?:
Yes
IPD Sharing Plan:
All of the individual participant’s data that underlie the results after deidentification will be placed on a corresponding platform, beginning immediately following article publication. Data can be used for scientific purpose. In addition the study protocol will be published.

Study protocol and other study documents

Study protocols:
No Entry
Study abstract:
No Entry
Other study documents:
No Entry
Background literature:
No Entry
Related DRKS studies:
No Entry

Publication of study results

Planned publication:
No Entry
Publikationen/Studienergebnisse:
No Entry
Date of first publication of study results:
No Entry
DRKS entry published for the first time with results:
No Entry

Basic reporting

Basic Reporting / Results tables:
No Entry
Brief summary of results:
No Entry