Risk reduction of hospital admissions for people with dementia in German shared-housing arrangements with outpatient care

ISRCTN ISRCTN89825211
DOI https://doi.org/10.1186/ISRCTN89825211
Secondary identifying numbers 01VSF18054
Submission date
05/06/2019
Registration date
16/07/2019
Last edited
07/05/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The risk for hospital admissions is higher for people with dementia compared to those free of dementia. Unfortunately, the literature shows that hospitalization has negative effects on the people with dementia, their family and the healthcare system. Hence, the DemWG project aims at reducing hospital admissions, stabilizing cognition and quality of life, and reducing agitation as well as the risk of falling in people with dementia in German shared-housing arrangements with outpatient care. For this purpose, a complex intervention will be conducted with:
1. Education of the nursing staff and other people working in the shared-housing arrangement.
2. Sensitization for hospitalization risks and fostering the involvement of the involved general practitioners.
3. Motor and cognitive training for the people with dementia in the shared-housing arrangement.

Who can participate?
People with mild cognitive impairment or mild to moderate dementia who live in a shared-housing arrangement with outpatient care in Germany can participate. There is no restriction regarding age or gender. People with the following conditions cannot participate in the study: severe dementia, severe hearing and/or visual impairment, cognitive decline due to diseases other than dementia (e.g. schizophrenia or Korsakov), permanently immobile, no verbal communication in German possible, history of severe major depression and/or more than one stroke.

What does the study involve?
The multimodal motor and cognitive training MAKS-mk+ is based on the central elements “cognition” (K) and “motor stimulation” (M) of the evidence-based MAKS therapy (www.maks-therapie.de). These elements have been extended by evidence based exercises to increase muscle strength and balance (+), derived from the evidence-based OTAGO exercise program for fall prevention, and adapted to the situation in shared-housing arrangements when developing the intervention MAKS-mk+. MAKS therapy has been shown to stabilize cognition and abilities of daily living in nursing homes and day care. In the DemWG project, MAKS-mk+ will be performed for 60 minutes five days a week in groups of maximum 12 persons for six months.

Education for nursing staff and other people working in shared-housing arrangements focuses on detecting health risk situations and informing about possible action strategies. General practitioners get also involved through further education about risks and consequences of hospital admissions and awareness raising interventions.
Participants will be examined with regard to the main and secondary outcomes before and after the therapy. The main outcome is hospital admissions in the last 6 months and secondary outcomes are quality of life, behavioural and psychological symptoms of dementia (including e.g. agitation), risk of falling and cognition. Additionally, focus groups and expert interviews are planned to be performed.

Of the 180 shared-housing arrangements in Germany collaborating in the study, 90 will perform the complex intervention immediately (intervention group); the others 12 months later optionally (waiting control group).

Additionally, an analysis of health insurance data will be performed to calculate the costs of health service utilization.

What are the possible benefits and risks of participating?
The possible benefits of participating in the study are stabilized cognition and quality of life, and reduced agitation as well as reduced risk of falling in people with dementia in German shared-housing arrangements with outpatient care. On the basis of previous studies, no side effects of the treatments are expected, neither for the evidence-based MAKS therapy (see http://www.biomedcentral.com/1741-7015/9/129 and https://www.aerzteblatt.de/int/archive/article/
195559/Non-pharmacological-treatment-in-people-with-cognitive-impairment-results-from-the-randomized-controlled-German-Day-Care-Study) nor for the evidence-based OTAGO exercise program for fall prevention (see https://academic.oup.com/ageing/article/39/6/681/9467).

Where is the study run from?
The study is run from the Institute for Public Health and Nursing Research (IPP) of the University of Bremen and the Center for Health Services Research in Medicine of the Department of Psychiatry and Psychotherapy of the Universitätsklinikum Erlangen (University Hospital Erlangen).

When is the study starting and how long is it expected to run for?
The DemWG project starts in April 2019 and will start with participant recruitment in January 2020. The end of the trial is 31/12/2022.

Who is funding the study?
The main sponsor is the Innovationsausschuss beim Gemeinsamen Bundesausschuss (Innovation Committee at the Federal Joint Committee [G-BA]).

Who is the main contact?
For further information, please contact the study supervisors: Prof. Dr. Karin Wolf-Ostermann (Mail: wolf-ostermann@uni-bremen.de) and Dr. Carolin Donath (Mail: carolin.donath@uk-erlangen.de.

Study website

Contact information

Prof Karin Wolf-Ostermann
Scientific

Grazer Straße 4
Bremen
28359
Germany

ORCiD logoORCID ID 0000-0001-8513-3125
Phone +4942121868960
Email wolf-ostermann@uni-bremen.de
Dr Carolin Donath
Scientific

Schwabachanlage 6
Erlangen
91054
Germany

ORCiD logoORCID ID 0000-0001-9502-861X
Phone +4991318534526
Email carolin.donath@uk-erlangen.de

Study information

Study designTwo-armed study: 1. Cluster-randomized controlled multi-center intervention study, complex intervention, waiting control group. Longitudinal data acquisition. Additional, focus groups and expert interviews are planned to be performed. 2. Panel study: analysis of health insurance data to calculate costs of health service utilization.
Primary study designInterventional
Secondary study designCluster randomised trial
Study setting(s)Other
Study typeQuality of life
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleRisk reduction of hospital admissions for people with dementia in German shared-housing arrangements with outpatient care by a complex intervention: a cluster-randomized controlled trial
Study acronymDemWG
Study objectivesPrimary Hypothesis:
1. Compared to the control group (treatment as usual), the intervention will lead to a reduction in hospital admissions and related consequences in the intervention group.

Secondary Hypotheses:
1. Compared to the control group (treatment as usual), the intervention will stabilize the quality of life for people with dementia in the intervention group.
2. Compared to the control group (treatment as usual), the intervention will reduce agitation and behavioral psychological symptoms of dementia in the intervention group.
3. Compared to the control group (treatment as usual), the intervention will reduce the risk of falling for people with dementia in the intervention group.
4. Compared to the control group (treatment as usual), the intervention will stabilize cognition for people with dementia in the intervention group.
Ethics approval(s)Approved 24/09/2019, the Ethics Committee of the University of Bremen (Mrs Strehmel-Fischer, Universität Bremen, Rechtsstelle – Referat 06, Postfach 330440, 28334 Bremen; tstrehm@uni-bremen.de; +49421 218 60220), ref: 2019-18 06-3
Health condition(s) or problem(s) studiedMild cognitive impairment, mild or moderate dementia (degenerative type, not solely vascular).
InterventionTreatment (the complex intervention) consists of three parts:
1. Education of nursing staff and other people working in shared-housing arrangements in detecting health risk situations and possible action strategies. education contents are risk factors for hospitalization, prevention options for falls, for dehydration and serious infections. The control group receives the education optionally one year after the intervention was implemented in the intervention group (ethical reasons).

2. Sensitization for hospitalization risks and fostering the involvement of general practitioners through further education about risks and consequences of hospital admissions and awareness raising interventions. The control group receives this intervention component optionally one year after the intervention was implemented in the intervention group (ethical reasons).

3. The intervention MAKS-mk+: The evidence-based MAKS therapy (see http://www.biomedcentral.com/1741-7015/9/129 and https://www.aerzteblatt.de/int/archive/article/
195559/Non-pharmacological-treatment-in-people-with-cognitive-impairment-results-from-the-randomized-controlled-German-Day-Care-Study) will be adapted to the shared-housing arrangement setting (MAKS-mk+). MAKS-mk+ is a multicomponent group intervention. During the intervention time of six months, the modules “motor stimulation” (M) and “cognition” (K) of the MAKS therapy, extended by evidence-based exercises to increase muscle strength and balance (+), will be performed five days a week in the shared-house arrangements in groups of a minimum of three and a maximum of 12 persons. Each daily session will begin with approximately 30 minutes of motor exercises: exercises for upper limps, derived from the module “motor stimulation” (M) of the MAKS therapy, on two days a week and evidence-based exercises to increase muscle strength and balance (+), derived from the evidence-based OTAGO exercise program for fall prevention (see https://onlinelibrary.wiley.com/doi/full/10.1046/j.1532-5415.2002.50218.x?sid=nlm%3Apubmed and https://academic.oup.com/ageing/article/39/6/681/9467), on three days a week. This is followed by about 30 minutes completing a variety of cognitive tasks from the module “cognition” (K) of the MAKS therapy projected digitally onto a large screen to be solved by the group five days a week. MAKS-mk+ was designed to promote activities that take place at an individual’s performance limit. Therefore, therapists can choose cognitive tasks in various difficulty levels according to the cognitive impairment in the group. The control group receives the usual care offered in each shared-housing arrangement (treatment as usual). After a waiting time of one year, the control group receives training in MAKS-mk+ and the intervention manual optionally (ethical reasons).
Intervention typeMixed
Primary outcome measureHospital admissions in the preceding 6 months are measured by nursing documentation of frequency, reasons and dates of hospital admissions at baseline, 6 months, 12 months and 18 months.
Secondary outcome measures1. Quality of life is measured by QUALIDEM at baseline, 6 months, 12 months and 18 months.
2. Behavioural and psychological symptoms of dementia and agitation are measured by Neuropsychiatric Inventory (NPI) and Cohen-Mansfield Agitation Inventory (CMAI) at baseline, 6 months, 12 months and 18 months.
3. Falls are measured by a self-developed questionnaire at baseline, 6 months, 12 months and 18 months.
4. Cognition is measured using the Mini-Mental State Examination (MMSE) at baseline, 6 months, 12 months and 18 months.
Overall study start date01/04/2019
Completion date31/12/2022

Eligibility

Participant type(s)Mixed
Age groupSenior
SexBoth
Target number of participants1,260 people with dementia (participants) in 180 shared-housing arrangements with outpatient care (clusters).
Total final enrolment363
Key inclusion criteriaCurrent inclusion criteria as of 25/11/2019:
1. Resident of shared-housing arrangements (with outpatient care).
2. Mild cognitive impairment or mild to moderate dementia.
3. Shared-housing arrangement is located in Bavaria, Bremen, Hamburg or Berlin. In order to reach the target number of participants we opened up the recruitment regions for the shared housing-arrangements to the remaining federal states of Germany.

Previous inclusion criteria:
1. Resident of shared-housing arrangements (with outpatient care).
2. Mild cognitive impairment or mild to moderate dementia.
3. Shared-housing arrangement is located in Bavaria, Bremen, Hamburg or Berlin.
Key exclusion criteria1. Severe hearing impairment.
2. Severe visual impairment.
3. Severe dementia.
4. Cognitive decline due to diseases other than dementia (e.g. schizophrenia or Korsakov).
5. Permanently immobile.
6. No verbal communication in German possible.
7. History of more than one stroke.
8. History of severe major depression.
Date of first enrolment01/01/2020
Date of final enrolment31/12/2020

Locations

Countries of recruitment

  • Germany

Study participating centres

University of Bremen, Institute for Public Health and Nursing Research (IPP)
Grazer Straße 4
Bremen
28359
Germany
Universitätsklinikum Erlangen, Department of Psychiatry and Psychotherapy, Center for Health Services Research
Schwabachanlage 6
Erlangen
91054
Germany

Sponsor information

Innovation Committee at the Federal Joint Comittee (Innovationsausschuss beim Gemeinsamen Bundesausschuss), general project administration: DLR Project Management Agency (DLR Projektträger)
Government

Gutenbergstraße 13
Berlin
10587
Germany

Phone +49 228 38211020
Email innovationsfonds-versorgungsformen@dlr.de
Website https://innovationsfonds.g-ba.de/

Funders

Funder type

Government

Innovation Committee at the Federal Joint Comittee (Innovationsausschuss beim Gemeinsamen Bundesausschuss), general project administration: DLR Project Management Agency (DLR Projektträger)

No information available

Results and Publications

Intention to publish date31/12/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from Stephan Kloep (kloep@uni-bremen.de).

Data will be available in the time interval from 12 months until 36 months after publication of the article. The data will be provided for non-commercial research purposes only to researchers with a proposal that was peer-reviewed and approved by an independent review committee. The inquiring researchers have to present an analysis plan and state the research purpose for which the data are needed, e.g. meta-analysis. Data will be available through the data warehouse of the University Bremen without any additional investigator support. The data that can be provided refer solely to the data underlying the presented results of the manuscript. They will be completely anonymized, linkage to the stored data with personal information will not be possible, thus case-specific additional information/clarification cannot be provided anymore.

Generally, informed consent of patients was obtained concerning participation of the study and data acquisition. Patients were informed according to the EU data protection legislation and the corresponding German equivalent (DSGVO). For further interest see the study protocol.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article 02/12/2020 13/04/2021 Yes No
Other publications Validation of Cohen-Mansfield Agitation Inventory-Short Form (CMAI-SF) in German 29/05/2023 30/05/2023 Yes No
Other publications Urban versus rural locations 13/03/2025 18/03/2025 Yes No
Results article Primary data 06/05/2025 07/05/2025 Yes No

Editorial Notes

07/05/2025: Publication reference added.
18/03/2025: Publication reference added.
30/05/2023: Publication reference added.
13/04/2021: The following changes were made to the trial record:
1. The overall trial end date was changed from 31/03/2022 to 31/12/2022.
2. The intention to publish date was changed from 31/03/2023 to 31/12/2023.
3. Total final enrolment number and trial website added.
27/05/2020: Recruitment to this study is no longer paused.
07/04/2020: Internal review.
23/03/2020: Due to current public health guidance, recruitment for this study has been paused.
20/03/2020: Due to current public health guidance, the investigators have paused the start of baseline data collection from March 2020 to June 2020 and the start of the intervention from April 2020 to July 2020.
20/03/2020: The IPD Sharing statement has been added to the publication and dissemination plan.
05/02/2020: Ethics approval details added.
22/01/2020: The recruitment end date was changed from 31/03/2020 to 31/12/2020.
25/11/2019: The following changes have been made:
1. The participant inclusion criteria have been changed.
2. The plain English summary has been updated to reflect the change in inclusion criteria.
07/06/2019: Trial's existence confirmed by the Innovation Committee at the Federal Joint Committee [G-BA].