Role of Alphacalcidol Supplement to Reduce Pain and COMP in Geriatric Knee Osteoarthritis Patients
Study Details
Study Description
Brief Summary
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.
Condition or Disease | Intervention/Treatment | Phase |
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Phase 3 |
Detailed 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.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Intervention group Individuals in intervention group were given oral Vitamin D supplements (Alphacalcidol 1 µg) once daily |
Drug: Alfacalcidol 1 MCG Oral Capsule
The subjects in the intervention group were given 1 µg oral capsule alphacalcidol once daily Subjects in the control group were given placebo once daily with similar capsule shape and color to the capsule given to the intervention group. The process of alphacalcidol and placebo encapsulation were carried out by pharmacists in the pharmacy depot under the supervision of researchers and CRO Equilab. Alphacalcidol and placebo were put into plastic pots containing 30 capsules for every 4 weeks for each subject. The pot had an etiquette written explaining how to consume the drug (after breakfast between 7 - 10 a.m.). The drugs' packaging and code numbering were carried out by CRO Equilab to ensure a double-blind procedure. As a control, each subject was equipped with a monitoring card. Alphacalcidol and placebo were given for 12 weeks without interruption. Monitoring of compliance and side effects was performed by physicians every 2 weeks.
Other Names:
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Placebo Comparator: Control Group Individuals in control group were given placebo once daily |
Drug: Sugar pill
The subjects in the control group were given placebo containing simple sugar oral capsule once daily with similar capsule shape and color to the capsule given to the intervention group. The process of alphacalcidol and placebo encapsulation were carried out by pharmacists in the pharmacy depot under the supervision of researchers and CRO Equilab. Alphacalcidol and placebo were put into plastic pots containing 30 capsules for every 4 weeks for each subject. The pot had an etiquette written explaining how to consume the drug (after breakfast between 7 - 10 a.m.). The drugs' packaging and code numbering were carried out by CRO Equilab to ensure a double-blind procedure. As a control, each subject was equipped with a monitoring card. Alphacalcidol and placebo were given for 12 weeks without interruption. Monitoring of compliance and side effects was performed by physicians every 2 weeks.
Other Names:
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Outcome Measures
Primary Outcome Measures
- WOMAC Pain Score Difference [Initial and final week (week 0 and 12).]
Instrument for assessing pain in knee OA patients from The Western Ontario & McMaster University OA Index. WOMAC pain score was assessed every 2 weeks to ensure that subject's pain within inclusion criteria.
- Cartilage Oligomeric Matrix Protein Difference [Initial and final week (week 0 and 12).]
Serum concentration of Cartilage Oligomeric Matrix Protein (COMP) as a biomarker for the severity of knee OA.
Secondary Outcome Measures
- Serum 25(OH)D Concentration Difference [Initial and final week (week 0 and 12).]
Serum 25(OH)D Concentration as vitamin D deficiency status
- Body Mass Index [Once, on week-0]
Body mass index, calculated by measuring subject's height and weight
- Kellgren-Lawrence Knee OA Grade [Once, on week-0]
Radiological knee OA grading system
- Mean Physical Activity [Every 2 weeks (from week-0 until week-12)]
Physical activities performed by subjects using their energy related to work and daily leisure time. Measured using Basic Health Research (Riskesdas) 2007 Questionnaire
- Mean Sun Exposure Frequency [Every 2 weeks (from week-0 until week-12)]
Ultraviolet B (UVB) exposure between 7-11 am for ≥ 30 minutes with exposure at least to the face and palms
- Mean Vitamin D Consumption [Every 4 weeks (from week-0 until week-12)]
The amount of Vitamin D consumption by subjects, which is calculated based on the consumption of fruits, vegetables, milk and its processed products, fish, etc.
Eligibility Criteria
Criteria
Inclusion Criteria:
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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
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Body mass index ≤27 kg/m2
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Do not have any systemic inflammatory diseases or other systemic diseases from history taking and physical examination
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Do not have any other OA in other joints according to physical examination
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Did not do any heavy physical activity or strenuous exercise for at least 1 month (last month)
Exclusion Criteria:
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Grade 4 Kellgren-Lawrence
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WOMAC pain score >15
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Serum 25(OH)D >125 nmol/L
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Calcium serum >10.5 mg/dl
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Diagnosed with rheumatoid or psoriatic arthritis, lupus or cancer, heart or kidney disorders, vitamin D hypersensitivity.
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Knee trauma, including injury to the ligament or meniscus before the study
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Consuming drugs that contain Magnesium (Antacids), Digitalis (Digoxin), Barbiturates or other anti-convulsants for a long time, which will interact with Vitamin D
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Currently undergoing vitamin D therapy for the last 30 days
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Use of other supplements intended to have an effect on cartilage such as glucosamine and chondroitin sulphate
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Undergo intra-articular therapy 3 months before the study
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Consume oral corticosteroids
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Senile dementia or other signs and symptoms of memory loss
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Public Health Service Clinic Reni Jaya | South Tangerang | Banten | Indonesia | 15417 |
Sponsors and Collaborators
- Syarif Hidayatullah State Islamic University Jakarta
Investigators
- Principal Investigator: Achmad Zaki, PhD, Faculty of Medicine Syarif Hidayatullah State Islamic University Jakarta
Study Documents (Full-Text)
None provided.More Information
Additional Information:
Publications
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