Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients

NCT ID: NCT01858051

Last Updated: 2017-03-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

WITHDRAWN

Clinical Phase

NA

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-31

Study Completion Date

2017-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

In the United States, \~1 million elective hip or knee replacement surgeries are performed annually. With estimated surgical site infection (SSI) rates as high as 2.5%, this represents \~25,000 patients at risk of potentially avoidable morbidity following lower extremity joint replacement surgery. Although SSIs only account for 20% of all HAIs, they are a major risk factor for prosthetic joint infections (PJIs). Furthermore, UTIs have also been identified as an independent risk factor for infections of implanted hardware.

In general, the majority of PJIs become apparent within 3 months of hardware implantation, but deep infections may not be evident for up to one year after surgery. Hardware infections result in delayed healing, repeated surgical interventions, and long-term antibiotic therapy. PJIs are associated with an average increase in hospital LOS by 14 days, additional expenditures of up to $50,000 per infected joint, and a doubling of the mortality rate compared to uninfected lower extremity joint replacements.

Recent work from our group suggests that vitamin D insufficiency may be a risk factor for perioperative HAIs. The prevalence of vitamin D insufficiency is approximately 40% in elective joint replacement surgery patients, and perioperative 25(OH)D levels drop 30-40% in the setting of surgical stress, remaining 20% below baseline up to 3 months after surgery. To date, perioperative vitamin D optimization strategies have not been reported. Therefore, our goal is to study the effect of a single (pre-operative) versus a divided (pre-operative and on post-operative day 1) dose of cholecalciferol on perioperative vitamin D status in patients scheduled for elective hip or knee joint replacement surgery.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Hypovitaminosis D

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Cholecalciferol Bolus Dose

70 patients will receive a bolus pre-operative oral dose of 150,000 IU cholecalciferol 3-7 days before surgery

Group Type ACTIVE_COMPARATOR

Cholecalciferol

Intervention Type DIETARY_SUPPLEMENT

Cholecalciferol Divided Dose

70 patients will receive an oral 100,000 IU cholecalciferol dose 3-7 days before surgery and an additional oral 50,000 IU cholecalciferol dose on post-operative day 1

Group Type ACTIVE_COMPARATOR

Cholecalciferol

Intervention Type DIETARY_SUPPLEMENT

Sugar Pill

35 patients will receive a placebo pill orally 3-7 days before surgery

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Cholecalciferol

Intervention Type DIETARY_SUPPLEMENT

Placebo

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Male or female
* Age ≥18 years
* English or Spanish speaking
* Scheduled for preoperative clinic assessment
* Scheduled to have elective hip or knee joint replacement surgery
* Not taking more than 1000 IU of either cholecalciferol or ergocalciferol daily

Exclusion Criteria

* Unable to provide consent
* Inability to comply with study protocol
* History of anemia (hematocrit \<25%)
* History of renal stones or hypercalcemia
* Conditions that can cause hypercalcemia (e.g. metastatic cancer, sarcoidosis, myeloma)
* Medications that affect vitamin D metabolism (e.g. anti-epileptics, tuberculosis medication)
* Already enrolled or planning to enroll in a research study that would conflict with full participation in the current study or confound the observation or interpretation of the study findings
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Bio-Tech Pharmacal, Inc.

INDUSTRY

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Sadeq A. Quraishi

Assistant Professor of Anaesthesia, Harvard Medical School

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Sadeq A Quraishi, MD, MMSc

Role: PRINCIPAL_INVESTIGATOR

Harvard Medical School, Massachusetts General Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2013P001071

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Vitamin Therapy in JGH Patients
NCT01630720 COMPLETED PHASE2
A Study on Oral Vitamin D Megadoses
NCT01067898 COMPLETED PHASE4