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Continuous Local Infiltration AnalgesiaPhase 4NCT06580899

Intra-Articular Catheter Total Knee Arthroplasty

A Phase 4 study testing Intra-articular catheter in people with Continuous Local Infiltration Analgesia and Intra-articular Catheter, run by OrthoCarolina Research Institute, Inc. at 1 site in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

This is a prospective, randomized clinical trial evaluating three groups. The groups are: Group 1 (Control): Subjects that receive only the existing standard-of-care multimodal pain management protocol and do not receive post-operative intra-articular catheter. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Intra-articular catheter
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
65 participants
Where
1 siteUnited States
Study dates
14 Mar 2025to 31 Dec 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

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

Who may be able to join

  • Patients undergoing elective outpatient unilateral TKA at Mallard Creek Surgery Center
  • Subjects ≥ 18 years or age
  • Subjects willing and able to provide written informed consent to participate in this study
  • Subjects who are indicated to use an intra-articular catheter pump system

Who cannot join

  • Subjects < 18 years of age
  • Subjects with history of chronic pain, neuropathic pain, or currently enrolled in pain management agreement
  • Subjects undergoing bilateral TKA
  • Subjects taking opiate pain medication preoperatively within 6 weeks of surgery date.
  • Subjects allergic to any components or treatment medications

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • OrthoCarolina Research Institute, Inc.

    Charlotte, North Carolina, 28207

Other trials in United States

About this study

Official title: Effectiveness of Continuous Local Infiltration Analgesia Intra-Articular Catheters for Pain Relief in Total Knee Replacement

This is a prospective, randomized clinical trial evaluating three groups. The groups are:

Group 1 (Control): Subjects that receive only the existing standard-of-care multimodal pain management protocol and do not receive post-operative intra-articular catheter.

Read more

Group 2 (Investigational Treatment/Intervention): Subjects that receive the brand 1 intra-articular catheter pump with existing standard-of-care multimodal pain management protocol in the immediate post-operative period.

Group 3 (Investigational Treatment/Intervention): Subjects that receive the newer brand 2 intra-articular catheter pump with existing standard-of-care multimodal pain management protocol in the immediate post-operative period.

Read the detailed description

The purpose of this study is to determine the effects of one of two continuous local infiltration analgesia (intra-articular catheter device) on patient postoperative pain scores following primary unilateral total knee arthroplasty in comparison to no addition of an intra-articular (IART) catheter post total knee arthroplasty (TKA). The investigators hypothesize that if patients undergoing primary unilateral TKA surgery receive an intra-articular catheter device that continuously delivers local infiltration analgesia in the postoperative period, then their postoperative pain scores on the visual analog scale will decrease. Secondary objectives will include determining the role of intraoperative tourniquet use on thigh versus knee postoperative pain and quantifying the amount of additional postoperative patient communication related to the intra-articular catheter device.

Previous literature demonstrates conflicting results on the effects of continuous local infiltration analgesia on postoperative pain management following TKA. The proposed study incorporates a well-designed and substantially powered study to directly compare patient postoperative pain scores with and without the use of an intra-articular catheter device, which will provide additional evidence and clarity to the literature.

If the intra-articular catheter is determined to provide meaningful reductions in postoperative pain, this directly benefits patients undergoing TKA surgery. Decreases in postoperative pain allow for increased patient comfort and earlier functional knee rehabilitation following surgery, both of which promote a faster recovery. A favorable intra-articular catheter study, in addition to the previous literature on continuous local infiltration analgesia, has the potential to change the previous standard of care following TKA surgery to add intra-articular catheter or similar devices as an evidence-based treatment in multimodal pain protocols. If the intra-articular catheter is determined not to provide clinically significant reductions in postoperative pain, then these devices have no substantial benefit to the patient and orthopedic surgeons can stop prescribing them. TKA surgery would become more cost-effective as the additional cost associated with the intra-articular catheter device will no longer be charged. The intraarticular intra-articular catheter patient pump has a rare, but small risk of infection due to the portal from the external environment to the knee joint. This additional catheter infection risk will be eliminated if future use of the intra-articular catheter device subsides.

Being tested
Intra-articular catheter, Routine Standard of Care Treatment
Keywords
continuous local infiltration analgesia, intra-articular catheter

What participants receive

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

  • Intra-articular catheterDevice

    Intra-articular catheter pump with existing standard-of-care multimodal pain management protocol in the immediate post-op period

  • Routine Standard of Care TreatmentOther

    No changes to what would occur outside of the study.

Study groups in NCT06580899
Study groupRoleWhat they receive
No post-operative intra-articular catheterOtherSubjects that receive ONLY the existing standard of care (SOC) multimodal pain management protocol and DO NOT receive post-operative intra-articular catheter.
Receives: Other: Routine Standard of Care Treatment
BRAND 1 intra-articular catheterActive comparatorSubjects that receive the BRAND 1 intra-articular catheter pump with existing SOC multimodal pain management protocol in the immediate post-op period.
Receives: Device: Intra-articular catheter
BRAND 2 intra-articular catheterActive comparatorSubjects that receive the newer BRAND 2 intra-articular catheter pump with existing SOC multimodal pain management protocol in the immediate post-op period.
Receives: Device: Intra-articular catheter

What is being measured

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

  1. Numeric Pain Rating Scale

    Numeric Pain Rating Scale (0-10 scale where 10 is worse)

    Measured: 2 days postoperative, 2 weeks postoperative

Secondary outcomes (1)
  1. Knee injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS Jr.)

    KOOS Jr. The interval score ranges from 0 to 100 where 0 represents total knee disability and 100 represents perfect knee health

    Measured: 6 weeks postoperative

Timeline

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

  1. First posted30 Aug 2024
  2. Study start14 Mar 2025
  3. Primary completion1 Sep 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
65 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06580899
Sponsor's protocol ID
CONC005
Status last verified
Mar 2026
First submitted
8 Aug 2024
Last updated
6 Apr 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
Individual data sharing
No: No IPD sharing

Publications

  • Gunaratne R, Pratt DN, Banda J, Fick DP, Khan RJK, Robertson BW. Patient Dissatisfaction Following Total Knee Arthroplasty: A Systematic Review of the Literature. J Arthroplasty. 2017 Dec;32(12):3854-3860. doi: 10.1016/j.arth.2017.07.021. Epub 2017 Jul 21.

    PubMed 28844632
  • Li JW, Ma YS, Xiao LK. Postoperative Pain Management in Total Knee Arthroplasty. Orthop Surg. 2019 Oct;11(5):755-761. doi: 10.1111/os.12535.

    PubMed 31663286
  • Horlocker TT. Pain management in total joint arthroplasty: a historical review. Orthopedics. 2010 Sep;33(9 Suppl):14-9. doi: 10.3928/01477447-20100722-65.

    PubMed 20839717
  • Soffin EM, Memtsoudis SG. Anesthesia and analgesia for total knee arthroplasty. Minerva Anestesiol. 2018 Dec;84(12):1406-1412. doi: 10.23736/S0375-9393.18.12383-2. Epub 2018 May 28.

    PubMed 29808972
  • Pugely AJ, Martin CT, Gao Y, Mendoza-Lattes S, Callaghan JJ. Differences in short-term complications between spinal and general anesthesia for primary total knee arthroplasty. J Bone Joint Surg Am. 2013 Feb 6;95(3):193-9. doi: 10.2106/JBJS.K.01682.

    PubMed 23269359

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Intra-articular catheter in people with Continuous Local Infiltration Analgesia and Intra-articular Catheter, run by OrthoCarolina Research Institute, Inc. 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 4 inclusion and 5 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: enrolling by invitation, as of the sponsor's last update on 6 Apr 2026. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Numeric Pain Rating Scale (time frame: 2 days postoperative, 2 weeks postoperative). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06580899, which also lists 5 linked publications.

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 6 Apr 2026.

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