Effect of vitamin D supplementation on the functional efficiency of patients after stroke

ISRCTN ISRCTN11086312
DOI https://doi.org/10.1186/ISRCTN11086312
Submission date
16/02/2023
Registration date
07/03/2023
Last edited
24/01/2025
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Stroke is the third leading cause of death in the adult population after heart disease and cancer. Post-stroke death rates in Poland are higher than in other European countries and the USA. Long-term disability is a serious problem among survivors. Studies have shown that almost 15-30% of people after a stroke are permanently disabled, and more than 20% of people require institutional help 3 months after the stroke. Vitamin D deficiency is now a widely recognized public health problem, affecting almost every second person worldwide. Recent evidence from multiple population studies indicates that vitamin D deficiency is a predictor of future strokes. The aim of this study is to find out whether vitamin D supplementation has an impact on patients undergoing neurological rehabilitation over 6 weeks.

Who can participate?
Patients aged 45-65 years who have had their first ischemic stroke and have been admitted to the ward for early post-stroke rehabilitation

What does the study involve?
Participants will undergo examinations including medical history, history and physical examination, and basic laboratory tests. They will be randomly allocated to one of two groups to take vitamin D supplements every morning (at 7.30 a.m.) for 6 weeks or to not take vitamin D supplements. Participants are assessed at the beginning of hospitalization and after 42 days.

What are the possible benefits and risks of participating?
For the safety of patients, blood pressure and heart rate will be measured before each unit of rehabilitation. Improvement training will always be selected individually for each patient to their current capabilities and needs, taking into account the patient's capabilities. Each of the patients qualified for rehabilitation in the Local Department of Neurological Rehabilitation may withdraw from participation in rehabilitation.
The results of the study will be used to participate in the discussion on modern forms of therapy used in patients after a stroke, their effectiveness, and the possibility of practical use on a wider scale.

Where is the study run from?
Regional Specialist Hospital in Wrocław, Local Department of Neurological Rehabilitation (Poland)

When is the study starting and how long is it expected to run for?
December 2022 to December 2023

Who is funding the study?
Wroclaw Medical University (Poland) - SUBZ.E060.23.037

Who is the main contact?
Prof. Małgorzata Paprocka-Borowicz, malgorzata.paprocka-borowicz@umw.edu.pl

Contact information

Prof Małgorzata Paprocka-Borowicz
Principal Investigator

Chałubińskiego 3
Wroclaw
50-368
Poland

ORCiD logoORCID ID 0000-0003-4296-7052
Phone +48 (0)71 784 28 15
Email malgorzata.paprocka-borowicz@umw.edu.pl

Study information

Study designSingle-center non-placebo-controlled prospective randomized study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeOther
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleThe effect of vitamin D Supplementation on the fUnctional efficiency of Patients after ischemic strOke undergoing neurological Rehabilitation - a prospective, randomized Trial with a control group (D-SUPORT)
Study acronymD-SUPORT
Study objectivesVitamin D (25[OH]D) supplementation improves the functional efficiency of patients undergoing 6-week neurological rehabilitation better than no supplementation.
Ethics approval(s)Approved 01/02/2023, Institutional Review Board at Wroclaw Medical University (ul. Pasteura 1, 50-367 Wrocław, Poland; +48 (0)71 784 17 10; bioetyka@umed.wroc.pl), ref: KB – 813/2022
Health condition(s) or problem(s) studiedPatients who had their first ischemic stroke were admitted to the ward for early post-stroke rehabilitation
InterventionParticipants in the study will be randomized (using the randomization program from the website random.org) and assigned to one of two comparison groups: group A - a group in which vitamin D supplementation at a dose of 2000 IU every morning (at 7.30 a.m.) for 6 weeks and group B (control) - group without vitamin D supplementation.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)25-hydroxyvitamin D (25[OH]D)
Primary outcome measure1. Clinical symptoms in the course of stroke were assessed using the National Institute of Health Stroke Scale (NIHSS) at baseline and after the intervention and 1 and 3 months after the intervention
2. Everyday activity assessed using the Barthel Scale at baseline and after the intervention and 1 and 3 months after the intervention
3. Degree of disability assessed using the Modified Rankin Scale at baseline and after the intervention and 1 and 3 months after the intervention
Secondary outcome measuresComplete blood count, urine analysis, and concentration of 25(OH)D and IGF-1 measured using basic laboratory tests before and after the intervention at baseline and after the intervention and 1 and 3 months after the intervention
Overall study start date01/12/2022
Completion date31/12/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants120
Total final enrolment160
Key inclusion criteria1. First ischemic stroke (time of occurrence 2 weeks before admission to the Department of Neurological Rehabilitation)
2. Stroke confirmed by MR or CT scan
3. Age >18 years old
4. No contraindications to participate in the experiment (consent of the attending physician)
5. No concomitant neurological diseases
6. Written informed consent of the patient to participate in the research
Key exclusion criteria1. Patients with infection in the last 2 weeks
2. Patients who have taken vitamin D and its derivatives or calcium in the last 3 months
3. Patients with liver and kidney disorders
4. Patients with thyroid dysfunction
5. Patients with aphasia
6. Patients who do not consent to the research
Date of first enrolment01/03/2023
Date of final enrolment30/09/2023

Locations

Countries of recruitment

  • Poland

Study participating centre

Regional Specialist Hospital in Wrocław Local Department of Neurological Rehabilitation
Poświecka 8 Street
Wrocław
51-128
Poland

Sponsor information

Wroclaw Medical University
University/education

Wybrzeże L. Pasteura 1
Wroclaw
50-367
Poland

Phone +48 (0)71 784 10 11
Email ewelina.tyczynska@umw.edu.pl
Website https://www.umw.edu.pl/pl/jednostki/katedra-fizjoterapii

Funders

Funder type

University/education

Uniwersytet Medyczny im. Piastów Slaskich we Wroclawiu
Private sector organisation / Universities (academic only)
Alternative name(s)
Wroclaw Medical University
Location
Poland

Results and Publications

Intention to publish date31/01/2024
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 analyzed during the current study are available from Prof. Małgorzata Paprocka-Borowicz (malgorzata.paprocka-borowicz@umw.edu.pl) upon reasonable request. Raw data (taking into account the anonymity of patients) will become available from the end of the study for 5 years. The research results will be passed on to other researchers in order to compare these results with the results of their own research.

Editorial Notes

24/01/2025: The total final enrolment was added.
20/02/2023: Trial's existence confirmed by the Institutional Review Board at Wroclaw Medical University.