Effect of Vitamin D on Cognitive Decline of Patients With Memory Complaint
D-COG
2 other identifiers
interventional
68
1 country
11
Brief Summary
As recommended allowance of oral vitamine D are unable to ensure the recommended serum concentration of vitamine D, the purpose of this study is to show that a dose of vitamin D3 higher than the recommended allowance may slow the cognitive decline of patients with a memory complaint.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Oct 2014
Typical duration for phase_3
11 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 30, 2014
CompletedFirst Posted
Study publicly available on registry
July 9, 2014
CompletedStudy Start
First participant enrolled
October 23, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 10, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
October 10, 2018
CompletedNovember 4, 2020
November 1, 2020
4 years
June 30, 2014
November 3, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Changes from baseline memory functions measured by the score of the total recall test from Free and Cued Selective Recall Reminding Test (Rappel Libre / Rappel Indicé 16 items : RL/RI 16) at one year and at two years
The score of the total recall test from Free and Cued Selective Recall Reminding Test (RL/RI 16) is recommended by a European Task Force consensus.
Baseline (at inclusion), one year and two years
Secondary Outcomes (19)
Changes from baseline global efficiency measured by the Mc Nair scale at one year and at two years
Baseline (inclusion), one year and two years
Evolution of anaemia evaluated by red blood cells count
Baseline (pre-inclusion), one year and two years
Evolution of plasma calcium and albumin concentration
Baseline (pre-inclusion), 45 days, one year and two years
Evolution of urinary calcium and creatinine concentration
45 days, one year and two years
All adverse events
Up to two years
- +14 more secondary outcomes
Study Arms (2)
Cholecalciferol 100 000 UI (Unité Internationale)
EXPERIMENTALOral solution in single-dose : 100 000 UI per month
Placebo
PLACEBO COMPARATOROral solution in single-dose per month
Interventions
Study of superiority between Cholecalciferol high dose 100 000 UI versus placebo : one bulb per month during two years
Study of superiority between Cholecalciferol high dose 100 000 UI versus placebo : one bulb per month during two years
Eligibility Criteria
You may qualify if:
- Patients aged 60 years or older,
- Who report to a memory centre with symptoms of memory complaint,
- Having a Mini-Mental State Examination (MMSE) score strictly \> the 5th percentile for sociocultural level of the patient (GRECO standards for elderly patients),
- Having visual, hearing abilities (authorized equipment) and an oral or written expression sufficient for the suitable realization of the tests,
- Who accept participation in the study and are able to sign the informed consent of the - Affiliated to the French social security system.
- Insufficient 25 OH D serum level : 25 OH D \< 50 nmol/L (20 ng/ml),
- Normal corrected plasma calcium concentration,
- Normal kidney function (cockcroft \> 30 mL/mn)
You may not qualify if:
- Alzheimer's disease or other dementia,
- Parkinson's disease treated,
- Epilepsy treated,
- Huntington's disease,
- Brain tumor,
- History of a progressive disease which may have consequences for the central nervous system (blood pressure, higher or equal to 180/100 mmHg, chronic pulmonary disease with hypoxia; cerebrovascular accident of less than 3 months, cranial traumatism with persistent neurologic deficit, subdural hematoma, brain surgery),
- Antecedent of alcoholism or chronic drug-addiction with an obvious or documented consequence on cognition,
- Severe depression : score Montgomery Asberg Depression Rating Scale (MADRS) \> 18,
- Psychotropic drug therapy (at the discretion of the clinician),
- Hypercalcaemia or treatment for a hypercalcaemia,
- Known hypersensitivity to the vitamin D,
- Granulomatous disease,
- Treatment of vit D at doses higher than the current recommendations,
- History of calcium urinary lithiasis of less than 1 year,
- Nonsteroidal antiinflammatory drug (NSAID) chronic treatment,
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (11)
Chu Angers
Angers, 49933, France
CH BLOIS
Blois, France
CHU BREST - Hôpital de la Cavale Blanche
Brest, 29200, France
CHI ELBEUF Louviers Val-de-Reuil
Elbeuf, France
CHU NANTES - Hôpital Bellier
Nantes, 44093, France
CHU NANTES - Hôpital Laënnec
Nantes, 44093, France
Chr Orleans
Orléans, 45067, France
CHU POITIERS - Hôpital de la Milétrie
Poitiers, 86021, France
CHU RENNES - Hôpital Hôtel Dieu
Rennes, 35064, France
CHU ROUEN - Hôpital Charles Nicolle
Rouen, 76031, France
CHRU TOURS - Hôpital Bretonneau
Tours, 37044, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Fanny HENNEKINE, PH
CHRU TOURS - Hôpital Bretonneau
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 30, 2014
First Posted
July 9, 2014
Study Start
October 23, 2014
Primary Completion
October 10, 2018
Study Completion
October 10, 2018
Last Updated
November 4, 2020
Record last verified: 2020-11