NCT06747559

Brief Summary

The goal of this clinical trial is to learn if vitamin D supplementation affects postoperative rehabilitation in osteoarthritis patients who underwent joint arthroplasty. The main questions it aims to answer are: Does oral vitamin D supplementation for a period of time after joint arthroplasty affect the postoperative recovery speed in patients who have vitamin D deficiency? Does oral vitamin D supplementation after joint arthroplasty affect the long-term recovery of joint functions in patients who have vitamin D deficiency? Participants will: Take vitamin D oral supplement every day for 3 months. Visit the clinic in 1, 3, 6, 12 months after joint replacement surgery for checkups and tests.

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Jan 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress67%
Jan 2025Dec 2026

First Submitted

Initial submission to the registry

November 21, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 24, 2024

Completed
8 days until next milestone

Study Start

First participant enrolled

January 1, 2025

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

December 24, 2024

Status Verified

November 1, 2024

Enrollment Period

12 months

First QC Date

November 21, 2024

Last Update Submit

December 19, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Knee joint function

    Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Pain ranging from 0 to 20 points; stiffness, 0 to 8 points; and physical function, 0 to 68 points. Higher scores represent worse pain, stiffness, and functional limitations.

    From enrollment to the end of treatment at 1 year

  • Hip joint function

    Harris Hip Score. The maximum score possible is 100. Results can be interpreted with the following: \<70 = poor result; 70-80 = fair, 80-90 = good, and 90-100 = excellent.

    From enrollment to the end of treatment at 1 year

  • Muscle strength

    Using portable muscle strength tester to measure flexor and extensor muscle strength of knee or hip joint

    From enrollment to the end of treatment at 1 year

Study Arms (2)

Vitamin D oral supplement

EXPERIMENTAL

Using vitamin D oral supplement that has been widely used in clinic

Drug: Vitamin D

No vitamin D supplementation

NO INTERVENTION

Interventions

Vitamin D oral supplementation

Vitamin D oral supplement

Eligibility Criteria

Age60 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Vitamin D deficiency (blood 25-hydroxyvitamin D value \< 20ng/ml);
  • Meeting the diagnostic criteria for hip or knee osteoarthritis;
  • Planning to undergo hip or knee arthroplasty after clinical assessment;

You may not qualify if:

  • \. Having other diseases that could cause damage to the bone or cartilage structure of the hip or knee, such as trauma, joint infection, congenital joint malformation, and systemic diseases such as rheumatoid arthritis and gout.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

2nd Affiliated Hospital, School of Medicine, Zhejiang University

Hangzhou, Zhejiang, China

Location

MeSH Terms

Conditions

Osteoarthritis, Hip

Interventions

Vitamin D

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

SecosteroidsSteroidsFused-Ring CompoundsPolycyclic Compounds

Study Officials

  • Xiang Zhao, MD

    2nd Affiliated Hospital, School of Medicine, Zhejiang University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 21, 2024

First Posted

December 24, 2024

Study Start

January 1, 2025

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

December 24, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

IPD cannot be shared publicly due to the sponsor policy.

Locations