Development of a Screening Tool for the Risk of Vitamin D Deficiency

NCT ID: NCT04404842

Last Updated: 2020-05-28

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 190 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2020-01-14
• Study Completion Date: 2022-01-31

Brief Summary

Since vitamin D deficiency is a condition that affects a high percentage of individuals of all ages and given the attention on the possible role of the deficiency of this vitamin in the development of various chronic diseases, including cardiovascular and metabolic disease (obesity, insulin resistance, hypertension, diabetes) and the correlation with mortality from major cardiovascular events (heart failure, myocardial infarction, sudden cardiac death, stroke, atrial fibrillation and peripheral vascular disease), it is clear that in clinical practice it is necessary to provide screening tools characterized by a simple use, high efficacy and a low economic impact, useful to detect a possible deficiency state that has a significant impact on general health and therefore provide targeted interventions for diagnosis and supplementation when and if necessary. Therefore, the objective of this study project is part of the broader context of supporting, with reproducible and shared scientific data, operational protocols useful for the clinician to identify subjects potentially at risk of vitamin D deficiency as well as directing to the diagnostic and more effective therapeutic. Surveillance of vitamin D status should be a high priority in which easy-to-use and interpreted tools, such as the questionnaire developed for this study, could respond to the needs of early identification of subjects potentially at risk of hypovitaminosis D, thus supporting the work of the clinician.

Detailed Description

It will be administered the questionnaire which includes specific and previously identified questions useful for the purpose of the study to all patients who belong to the clinic of the Dietetics and Clinical Nutrition, Internal Medicine and Endocrinology Unit, ICS Maugeri di Pavia who meet the inclusion criteria and signed the Informed Consent. The blood dosage of 25 (OH) D will be used as a reference standard useful for achieving the purpose of the study subject to the execution of diagnostic-therapeutic procedures that are beneficial to the patient or performed for routine diagnostic procedures or previously prescribed by the general practitioner. The collected data will be entered in the Data Collected Form together with the laboratory tests.

Therefore, all patients will receive the EVIDENCE Questionnaire which includes 19 items that investigate those factors that influence the production, absorption and intake of vitamin D:

• anthropometric data (weight, height, waist circumference, BMI),
• demographic information, such as latitude and phototype,
• dietary intake of vitamin D,
• health status and therapies,
• multivitamin or vitamin D supplementation,
• sun exposure habits according to the season, frequency and time of exposure, the body parts exposed, the sunscreens use and outdoor activities.

The aim of the study is to develop a questionnaire useful in screening the adequacy of vitamin D concentration in the adult population and to produce evidence of construct validity and concurrent validity of the questionnaire itself.

SAMPLE SIZE: Psychometric literature suggests enrolling around 5-10 subjects for each item. Considering the number of items in the questionnaire, equal to 19, the number of subjects to be enrolled will be approximately 190.

Conditions

Vitamin D Deficiency; Vitamin D3 Deficiency; Vitamin D

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

EvidenceQ Cohort

Adult subjects, aged over 18 years, male and female.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Subjects older than or equal 18 years;
• Absence of liver pathologies;
• Absence of kidney pathologies;
• Absence of intestinal malabsorption syndromes;
• Absence of bariatric surgery;
• Absence of cancer;
• Absence of primary hyperparathyroidism;
• Absence of extensive dermatological pathologies (e.g. psoriasis, atopic dermatitis, vitiligo)
• Absence of supplementation with multivitamin supplements or vitamin D;
• Absence of chronic drug therapy with: anticonvulsants, antipsychotics, glucocorticoids, immunosuppressive corticosteroids, anti-retrovirals, slimming, hypocolestrolemicants, laxatives (prolonged use);
• acceptance and sign of informed consent.

Exclusion Criteria

• Subjects under 18 years old;
• Affected by liver pathologies;
• Affected by kidney pathologies;
• Affected by intestinal malabsorption syndromes;
• Affected by cancer;
• Affected by primary hyperparathyroidism;
• Affected by extensive dermatological pathologies (e.g. psoriasis, atopic dermatitis, vitiligo).
• Candidates and/or undergoing bariatric surgery;
• Supplementation with multivitamin or vitamin D;
• Chronic therapy with: anticonvulsants, antipsychotics, glucocorticoids, immunosuppressive corticosteroids, anti-retrovirals, slimming, hypocolestrolemizzanti, laxatives (prolonged use).

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Istituti Clinici Scientifici Maugeri SpA

OTHER

Sponsor Role: collaborator

University of Pavia

OTHER

Sponsor Role: lead

Responsible Party

Hellas Cena

Tenured researcher

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Hellas Cena

Role: PRINCIPAL_INVESTIGATOR

Univeristy of Pavia, ICS Maugeri SpA SB

Locations

Istituti Clinici Scientifici Maugeri SpA

Pavia, Lombardy, Italy

Site Status: RECRUITING

Countries

Italy

Central Contacts

Chiara Elena Tomasinelli

Role: CONTACT

chiara.tomasinelli@unipv.it

+39 0382 987536

Hellas Cena

Role: CONTACT

hellas.cena@unipv.it

0382 987542

Facility Contacts

Hellas Cena

Role: primary

hellas.cena@unipv.it

+39 0382 987542

Other Identifiers

14052020

Identifier Type: -

Identifier Source: org_study_id