Cardiovascular And Metabolic Risk After Arthroplasty (CAMERA)

January 8, 2024 updated by: Kaspar Tootsi, University of Tartu

Cardiovascular And Metabolic Risk After Arthroplasty: the CAMERA Study

Osteoarthritis is a chronic joint disease that lacks curative therapy. Epidemiological studies show increase in the burden of disease. Total joint arthroplasty is one of the best treatment options for end-stage osteoarthritis. However, the specific effects of total joint arthroplasty on cardiovascular risk and metabolic profile are largely unknown. The aim of this project is to elucidate how hip and knee total joint arthroplasty impacts cardiovascular risk and metabolomic profile in comparison with general population. We hypothesize that arthroplasty decreases pain, systemic inflammation levels and increases functional status that all lead to decreased metabolic and cardiovascular risk.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
152

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Estonia
    • Tartumaa
      • Tartu, Tartumaa, Estonia, 51014
        • University of Tartu

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Patients with primary osteoarthritis

Description

Inclusion Criteria for the arthroplasty group:

primary hip and knee OA (according to the American College of Rheumatology criteria) eligible for total joint arthroplasty

Exclusion Criteria for the arthroplasty group:

posttraumatic OA, infectious and endocrine related arthropathy, any acute or chronic inflammatory disease, malignancy, renal insufficiency (estimated glomerular filtration rate (eGFR) < 60ml/min/1.73m2), cardiac arrhythmia, clinically significant heart failure, valvular disease, diabetes.

Exclusion criteria for the control group:

any concomitant acute or chronic inflammatory disease, a visit to family practitioner due to hip or knee joint complaints, any persistent knee or hip joint pain, diabetes, symptomatic coronary artery disease, cardiac arrhythmia, cerebrovascular or peripheral artery disease, malignancies and renal insufficiency.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Cases
Patients with end-stage osteoarthritis (OA), who were eligible for total joint arthroplasty in Tartu University Hospital. Exclusion criteria: posttraumatic OA, infectious or endocrine arthropathy, acute or chronic inflammatory disease, malignancies, end-stage renal impairment (eGFR < 60ml/min/1.73m2), dysrhythmias, clinically relevant heart failure, heart valve-disease, diabetes.
Procedure: Total joint arthroplasty
Hip or knee total joint arthroplasty
Controls
Gender and age matched control group, who is recruited from the general practitioner (GP) list and who are from the same geographical regions as the cases. Excluding criteria: acute or chronic inflammatory disease, GP visitation due to hip or knee problems, persistent knee or hip pain, diabetes, symptomatic coronary disease, dysrhythmias, cerebrovascular or peripheral artery disease, malignancy or renal impairment.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Aortic pulse wave velocity at 5 years after arthroplasty
Time Frame: 5 years
5 years after the beginning of study for control group; measurements are done using the Sphygmocor device.
5 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in low-molecular weight metabolites
Time Frame: 5 years
Low-molecular weight metabolites are measured using Biocrates Absolute IDQ p180 kit (BIOCRATES Life Sciences AG, Innsbruck, Austria), which enables to quantify lipides, acylcarnitines, aminoacids, biogenic amines, polyamides
5 years
Oxidative stress index
Time Frame: 5 years
Serum oxidative stress index. Expressed in %. The percentage of the ratio of total plasma peroxide concentration to plasma total antioxidative capacity (TAC, expressed in mmol trolox equivalent/L).
5 years
Leptin levels
Time Frame: 5 years
Measured from serum. Expressed in ng/ml.
5 years
Metabolic syndrome risk score
Time Frame: 5 years
A composite risk score is used to assess metabolic syndrome risk and include waist circumference(cm), HDL-cholesterol level(mmol/L), fasting glucose level(mmol/L), triglycerides level(mmol/L), blood pressure(mmHg). Each factor gives one point to the total score (range 0-5)
5 years
Harris Hip score or Hospital for Special Surgery Knee score
Time Frame: 5 years
Harris Hip Score for hip arthroplasty patients. The HHS is divided into three sections. The first section are questions about pain and its impact which are answered by the patient or client. The second and third sections require specialist to assess the patient or client's hip joint and function. The HHS is a measure of dysfunction so the higher the score, the better the outcome for the individual. 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.
5 years
Central systolic blood pressure
Time Frame: 5 years
Central systolic blood pressure is measured using the Sphygmocor device. Expressed in mmHg.
5 years
Central diastolic blood pressure
Time Frame: 5 years
Central diastolic blood pressure is measured using the Sphygmocor device. Expressed in mmHg.
5 years
Composite of cardiovascular clinical events
Time Frame: 5 years
Composite of stroke, myocardial infarction, cardiovascular death, unstable angina
5 years
Oxidized LDL-cholesterol
Time Frame: 5 years
Measured from serum. Expressed in mmol/L
5 years
Adiponectin level
Time Frame: 5 years
Measured from serum, expressed in ng/ml
5 years
Augmentation index
Time Frame: 5 years
Measured using the Sphygmocor device. The augmentation index (AI) is an indirect measure of arterial stiffness and increases with age, and it is calculated as AG (augmentation pressure) divided by PP(pulse pressure) ×100 to give a percentage.
5 years
SF-36
Time Frame: 5 years
The Short Form (36) Health Survey is a 36-item, patient-reported survey of patient health. The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
5 years
Hospital for Special Surgery knee score
Time Frame: 5 years
The HSS Knee Score is based on a total of 100 points. The score is divided into seven categories, which include pain, function, range of motion, muscle strength, flexion deformity, instability, and subtractions. The knee is initially given a score of 0, and additions or subtractions are made according to specific criteria. The higher the score, the better the outcome. Approximately 50% of the score is based on a patient interview and the remaining on physical exam.
5 years
Central pulse pressure
Time Frame: 5 years
Measured using the Sphygmocor device. Expressed in mmHg.
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Tartu

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Tartu University Hospital
Estonian Science Foundation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kaspar Tootsi, PhD, MD, University of Tartu
  • Study Chair: Kadri Vilba, MD, University of Tartu
  • Study Chair: Aare Märtson, PhD, MD, University of Tartu
  • Study Chair: Jaak Kals, PhD, MD, University of Tartu

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 30, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 8, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 18, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 18, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 8, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 296T-14

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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