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Total Shoulder ArthroplastyPhase 4NCT01782872

Analgesia After Total Shoulder Arthroplasty

A Phase 4 study testing Interscalene Block (ISB) - 0.375% Ropivacaine + additives, Interscalene Block (ISB) - 0.2% Ropivacaine + additives and Interscalene Block (ISB) - 0.1% Ropivacaine + additives in people with Total Shoulder Arthroplasty, run by Hospital for Special Surgery, New York at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine which medication(s) should be included in the interscalene nerve block (an injection of local anesthetic [numbing medicine] near nerves in the shoulder) for patients undergoing total shoulder arthroplasty (shoulder replacement). Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Total Shoulder Arthroplasty
What is being tested?
Interscalene Block (ISB) - 0.375% Ropivacaine + additives, Interscalene Block (ISB) - 0.2% Ropivacaine + additives and Interscalene Block (ISB) - 0.1% Ropivacaine + additives
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
1 siteUnited States
Study dates
Oct 2012to Feb 2014
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with osteoarthritis
  • Primary total shoulder arthroplasty
  • Age 18 to 80 years old
  • Planned use of general anesthesia
  • Planned use of a brachial plexus nerve block for postoperative analgesia
  • Ability to follow study protocol

Who cannot join

  • Patients younger than 18 years old and older than 80
  • Allergy or intolerance to one of the study medications
  • Patients with an American Society of Anesthesiologists (ASA) physical status of IV
  • Patients with insulin-dependent diabetes
  • Patients with hepatic (liver) failure
  • Patients with chronic renal (kidney) failure
Show all 9Show fewer
  • Bradycardia (heart rate < 50) or hypotension (systolic blood pressure < 90 mmHg)
  • Chronic opioid use (taking opioids for longer than 3 months) (or active diagnosis of complex regional pain syndrome [CRPS]/reflex sympathetic dystrophy [RSD])
  • Lack of English fluency

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Hospital for Special Surgery

    New York, New York, 10021

Other trials in United States

About this study

The purpose of this study is to determine which medication(s) should be included in the interscalene nerve block (an injection of local anesthetic [numbing medicine] near nerves in the shoulder) for patients undergoing total shoulder arthroplasty (shoulder replacement). The ideal nerve block would reduce pain after shoulder surgery without causing a great deal of muscle weakness.

Read the detailed description

All patients will receive an intravenous pain pump (patient-controlled analgesia) and a nerve block with long-lasting local anesthetic. The three study groups will receive additives (clonidine, dexamethasone, buprenorphine plus local anesthetic) in the nerve block that may reduce postoperative pain. One of the study groups uses the usual concentration of local anesthetic, while the other two study groups use reduced concentrations of local anesthetic. Follow-up with study patients begins on the day of surgery and continues through postoperative day 2. Seen twice daily, patients will be asked about their pain and assessed for sensory function and strength of their shoulder muscle and hand grip.

Being tested
Interscalene Block (ISB) - 0.375% Ropivacaine + additives, Interscalene Block (ISB) - 0.2% Ropivacaine + additives, Interscalene Block (ISB) - 0.1% Ropivacaine + additives, Interscalene Block (ISB) - Systemic Control

What participants receive

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

  • Interscalene Block (ISB) - 0.375% Ropivacaine + additivesProcedure or surgery

    Ultrasound-guided single-injection ISB: ropivacaine 0.375% + (clonidine [100 mcg] + dexamethasone [4 mg] + buprenorphine [150 mcg]); Intravenous (IV): saline

  • Interscalene Block (ISB) - 0.2% Ropivacaine + additivesProcedure or surgery

    Ultrasound-guided single-injection ISB: ropivacaine 0.2% + (clonidine [100 mcg] + dexamethasone [4 mg] + buprenorphine [150 mcg]); Intravenous: saline

  • Interscalene Block (ISB) - 0.1% Ropivacaine + additivesProcedure or surgery

    Ultrasound-guided single-injection ISB: ropivacaine 0.1% + (clonidine [100 mcg] + dexamethasone [4 mg] + buprenorphine [150 mcg]); Intravenous: saline

  • Interscalene Block (ISB) - Systemic ControlProcedure or surgery

    Ultrasound-guided single-injection ISB: ropivacaine 0.375%; Intravenous: clonidine (100 mcg) + dexamethasone (4 mg) + buprenorphine (150 mcg)

Study groups in NCT01782872
Study groupRoleWhat they receive
Interscalene Block (ISB) - 0.375% Ropivacaine + additivesActive comparatorNot described
Receives: Procedure: Interscalene Block (ISB) - 0.375% Ropivacaine + additives
Interscalene Block (ISB) - 0.2% Ropivacaine + additivesActive comparatorNot described
Receives: Procedure: Interscalene Block (ISB) - 0.2% Ropivacaine + additives
Interscalene Block (ISB) - 0.1% Ropivacaine + additivesActive comparatorNot described
Receives: Procedure: Interscalene Block (ISB) - 0.1% Ropivacaine + additives
Interscalene Block (ISB) - Systemic ControlActive comparatorNot described
Receives: Procedure: Interscalene Block (ISB) - Systemic Control

What is being measured

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

  1. Numeric Rating Scale (NRS) Pain Score With Movement

    Pain with movement at 24 hours from the nerve block (scale of 0-10; 0 = no pain, 10 = worst possible pain)

    Measured: 24 hours after the interscalene block is given

Secondary outcomes (3)
  1. Duration of Analgesia From Interscalene Nerve Block

    Median time until a patient needed to take opioid pain medication

    Measured: Postoperative day 1 at 8AM & 5PM, postoperative day 2 at 8AM & 5PM

  2. Numeric Rating Scale (NRS) Pain Scores at Rest

    Assessment of NRS pain scores (scale of 0-10; 0 = no pain, 10 = worst possible pain) at rest

    Measured: Preop

  3. Middle Deltoid

    A physical assessment will be done to determine the strength of the middle deltoid muscle in the operative arm using a dynamometer

    Measured: 24 hours after surgery

Timeline

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

  1. First posted4 Feb 2013 (estimated)
  2. Study startOct 2012
  3. Primary completionJan 2014
  4. Study completionFeb 2014

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01782872
Sponsor's protocol ID
2012-014
Status last verified
Apr 2016
First submitted
24 Sep 2012
Last updated
18 May 2016
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Interscalene Block (ISB) - 0.375% Ropivacaine + additives, Interscalene Block (ISB) - 0.2% Ropivacaine + additives and Interscalene Block (ISB) - 0.1% Ropivacaine + additives in people with Total Shoulder Arthroplasty, run by Hospital for Special Surgery, New York 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 6 inclusion and 9 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: finished, as of the sponsor's last update on 18 May 2016. 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?

Yes. Results are posted in the registry (first posted 18 May 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 Rating Scale (NRS) Pain Score With Movement (time frame: 24 hours after the interscalene block is given). 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 18 May 2016.

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