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Joint PainNCT04974463

Predicting Chronic Opioid Use Following Lower Extremity Joint Arthroplasty

An observational study of Joint Pain and Chronic Pain, run by University of California, San Diego at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Personalized medicine is a concept in which medical care is individualized to a patient based on their unique characteristics, including comorbidities, demographics, genetics, and microbiome. After major surgery, some patients are at increased risk of opioid dependence. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Joint Pain, Chronic Pain, Opioid Use
How many people
1,000 participants
Where
1 siteUnited States
Study dates
19 Jul 2021to 31 Dec 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: patients undergoing lower extremity joint replacement (i.e. total knee arthroplasty, total hip arthroplasty, hemiarthroplasty, unicompartmental knee replacement)

Who may be able to join

  • patient undergoing unilateral knee or hip arthroplasty

Who cannot join

  • refusal to consent
  • lack of independent decision-making capacity
  • inability to communicate effectively with research personnel
  • if patient received antibiotics within the last 3 months prior to surgery

Trial locations and contacts

1 site in 1 country.

Rodney A Gabriel, MD, MAS contact

858-663-7747

ragabriel@health.ucsd.edu

United States1 site, 1 recruiting
  • University of California San Diego

    La Jolla, California, 92037

    Rodney A Gabriel, MD, 858-663-7747, ragabriel@health.ucsd.edu

    Recruiting

Other trials in United States

About this study

Official title: Using Genomics and Gut Microbiome Data to Predict Postoperative Opioid Use in Patients Undergoing Lower Extremity Joint Replacement

Personalized medicine is a concept in which medical care is individualized to a patient based on their unique characteristics, including comorbidities, demographics, genetics, and microbiome. After major surgery, some patients are at increased risk of opioid dependence. By identifying unique genetic and microbiome markers, clinicians may potentially identify individual risk factors for opioid dependence. By identifying these high risk patients early-on, personalized interventions may be applied to these patients in order to reduce the incidence of opioid-dependence.

Read the detailed description

The primary objective of this study is to identify associations with genetic variants, gut microbiome, and metabolomics (i.e. exosome profiling) with postoperative opioid use in surgical patients. Patients will be recruited preoperatively who underwent lower extremity joint replacement. The following tests will be performed: 1) genome-wide single nucleotide polymorphisms and structural variation, with a particular focus on the following genes: COMT, BDNF, SCN11a, OPRM1, ACBC1, CYPD26, CYP34A, ANKK1, OPRD1, OPRK1,NGFB, UGT2B7, FFAR2, FFAR3, GABRG2, SLCO1B1, DRD4; 2) longitudinal gut microbiome sampling; and 3) exosome profiling - blood will be collecting for RNAseq and plasma for metabolomics and extracellular vesicle characterization with ultimate impact on in vitro cell function. These genes were selected because they have been shown to be associated with opioid use, opioid metabolism, and pain. Furthermore, subjects will fill out surveys preoperatively, including: pain catastrophizing scale, brief pain inventory, PROMIS-29, and fibromyalgia survey criteria. Other data collected will include body mass index, age, sex, comorbidities, lifestyle habits, and medication use.

The hypothesis is that there will be clinically significant associations with patient genetics, microbiome, exosome profiles with their postoperative opioid use. Such findings will help personalize pain interventions for high-risk patients undergoing knee or hip arthroplasty in order to help improve postoperative pain control and reduce incidence of chronic opioid use.

Specific Aim #1. To validate and identify pharmacogenomic associations with acute postoperative opioid use (during the first 48 postoperative hours) and chronic opioid use (at >3-4 months after surgery) in patients who underwent lower extremity joint replacement.

Specific Aim #2. To identify gut microbiome and metabolomics associations with acute postoperative opioid use (during the first 48 postoperative hours) and chronic opioid use (at >3-4 months after surgery) in patients underwent lower extremity joint replacement.

Specific Aim #3. To identify blood RNAseq patterns, plasma metabolic markers, extracellular vesicles, and impact of plasma on in vitro cell metabolism associated with acute postoperative opioid use (during the first 48 postoperative hours) and chronic opioid use (at >3-4 months after surgery) in patients underwent lower extremity joint replacement.

Machine learning approaches will be used to combine all data to improve prediction of the primary outcomes.

Medical subject headings
Arthralgia, Chronic Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04974463
Study groupRoleWhat they receive
Persistent Opioid Use at 3 monthsPatients who continue to use opioids about 3 months after their joint replacement surgery
No Persistent Opioid Use at 3 monthsPatients who do not use opioids after about 3 months following joint replacement surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 3-month persistent opioid use

    continual opioid use 3 months after surgery

    Measured: 3 months

  2. 3-month persistent post-surgical pain

    continual pain at surgical site at 3 months

    Measured: 3 months

Secondary outcomes (2)
  1. Acute postoperative opioid use

    opioid use during the first 48 hours after surgery

    Measured: 48 hours

  2. Acute postoperative pain

    pain scores during the first 48 hours after surgery

    Measured: 48 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jul 2021
  2. Study start19 Jul 2021
  3. Primary completion31 Oct 2023 (estimated)
  4. Study completion31 Dec 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
1,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04974463
Sponsor's protocol ID
210132
Status last verified
Jul 2023
First submitted
13 Jul 2021
Last updated
27 Jul 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Joint Pain and Chronic Pain, run by University of California, San Diego at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 27 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Rodney A Gabriel, MD, MAS (858-663-7747, ragabriel@health.ucsd.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

3-month persistent opioid use (time frame: 3 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jul 2023.

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