Role of Alphacalcidol Supplement to Reduce Pain and COMP in Geriatric Knee Osteoarthritis Patients

Syarif Hidayatullah State Islamic University Jakarta

Status and phase

Completed

Phase 3

Conditions

Aged

Osteoarthritis, Knee

Treatments

Drug: Alfacalcidol 1 MCG Oral Capsule

Drug: Sugar pill

Study type

Interventional

Funder types

Other

Identifiers

NCT04405960

162/UN2.F10/PPM.00.02/2016

Details and patient eligibility

About

Indonesian population's life expectancy has been increasing steadily in the last 3 decades. It potentially increases the prevalence of degenerative diseases, including osteoarthritis (OA). Serum Vitamin D (25(OH)D) level has been recognized as a risk factors for knee OA. Cartilage Oligomeric Matrix Protein (COMP) is cartilage degradation product can be used as a diagnostic marker for knee OA. This study aims to determine the effect of Vitamin D supplementation (Alphacalcidol) on pain based on WOMAC indicators and joint cartilage condition based on COMP serum markers in knee OA elderly patients.

Full description

Vitamin D plays important role to enhance calcium absorption in intestine and promotes mineralization of bones. Several studies found that Vitamin D levels were low in patients with knee OA.

Vitamin D deficiency were found in 50% of women age 45-55 years old and 35% of women age 60-90 years old in Jakarta and Bekasi. Alphacalcidol is a vitamin D supplementation recommended to be used in patients with renal insufficiency, which is prevalent in elderly. Alfacalcidol does not need to undergo renal 1-alpha-hydroxylation which impaired in renal insufficiency, although it can still cause hypercalcemia.

Current detection and diagnosis of knee OA relies on plain radiological examination, which is not really objective because it depends on radiological expertise and experience. Moreover, plain radiological diagnosis has limited ability to detect joint damage at an early stage. Therefore, knee OA is often diagnosed at advanced stage. For this reason, selecting accurate joint cartilage biomarkers is important to detect and predict the severity of OA objectively and at earlier stage. Cartilage Oligomeric Matrix Protein (COMP) is one of degradation products released into synovium fluid and bloodstream from cartilage matrix turnover process. Therefore, COMP can be used as a marker of diagnosis and cartilage injury severity of knee OA.

Currently, there has been no study about the association of Vitamin D supplementation with pain level and cartilage matrix turnover process in Indonesia. Therefore, this study aims to determine the effect of Vitamin D supplementation (Alphacalcidol) on pain and joint cartilage condition in elderly patients with knee OA.

Enrollment

146 patients

Sex

All

Ages

60 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patients with knee pain due to OA who meet clinical and radiological criteria according to Kellgren-Lawrence grade at least 1 month with knee pain of at least 5 measured using the WOMAC pain index
Body mass index ≤27 kg/m2
Do not have any systemic inflammatory diseases or other systemic diseases from history taking and physical examination
Do not have any other OA in other joints according to physical examination
Did not do any heavy physical activity or strenuous exercise for at least 1 month (last month)

Exclusion criteria

Grade 4 Kellgren-Lawrence
WOMAC pain score >15
Serum 25(OH)D >125 nmol/L
Calcium serum >10.5 mg/dl
Diagnosed with rheumatoid or psoriatic arthritis, lupus or cancer, heart or kidney disorders, vitamin D hypersensitivity.
Knee trauma, including injury to the ligament or meniscus before the study
Consuming drugs that contain Magnesium (Antacids), Digitalis (Digoxin), Barbiturates or other anti-convulsants for a long time, which will interact with Vitamin D
Currently undergoing vitamin D therapy for the last 30 days
Use of other supplements intended to have an effect on cartilage such as glucosamine and chondroitin sulphate
Undergo intra-articular therapy 3 months before the study
Consume oral corticosteroids
Senile dementia or other signs and symptoms of memory loss