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This pilot study evaluates vitamin K2 (menaquinone-7) together with vitamin D3 in patients with osteopenia or osteoporosis (thinning of the bones) who carry a variant of the VDR gene. Adults aged 40-75 with a DXA-confirmed diagnosis of osteopenia or osteoporosis may take part. Sponsored by S.LAB (SOLOWAYS), this study without an assigned phase is currently recruiting participants.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * Adults aged 40-75 years with a confirmed DXA-based diagnosis of osteopenia or osteoporosis (T-score ≤ -1.0). * Stable dietary habits and willingness to maintain current exercise regimen throughout the study. * Willingness to undergo genotyping for the VDR variant. For the VDR Variant Cohort: confirmed homozygous "unfavorable" variant (e.g., BsmI or ApaI). * For the Non-Variant Cohort: confirmed absence of the "unfavorable" allele (wild-type). Exclusion Criteria: * Current or recent (last 3 months) use of high-dose bisphosphonates, anabolic agents (e.g., teriparatide), or selective estrogen receptor modulators (SERMs). Known allergy or hypersensitivity to vitamin K or vitamin D supplements. * Severe renal or hepatic dysfunction, uncontrolled hyperthyroidism, or other significant comorbidities that could confound bone metabolism assessments. * Pregnancy or breastfeeding. * Inability or unwillingness to provide informed consent or to comply with study procedures.