Total Shoulder ArthroplastyPhase 4NCT06143306
Addition of a Pectoserratus Block to Interscalene Block in Patients Undergoing Total Shoulder Replacement
A Phase 4 study testing bupivacaine. and Saline in people with Total Shoulder Arthroplasty, run by University of Minnesota at 1 site in United States.
Trial summary
The use of ISB in patients undergoing total shoulder arthroplasty (TSA) is the gold standard and results in significantly reduced pain scores and opioid use. However, patients still have pain and the majority require opioids postoperatively as the interscalene block (ISB) doesn't cover all of the dermatomes impacted… Read more about this study
- Who is it for?
- Ages 18 to 85 years
- Conditions the study is for
- Total Shoulder Arthroplasty
- What is being tested?
- bupivacaine. and Saline
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 110 participants
- Where
- 1 siteUnited States
- Study dates
- 14 Aug 2024to 30 Oct 2027
- 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 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients undergoing total shoulder arthroplasty or reverse total shoulder arthroplasty;
- Patients aged 18-85 years old.
Who cannot join
- Patients who have an exclusion to regional anesthesia such as pre-existing nerve damage to their brachial plexus or infection at the site of injection.
- Patients who have exclusion to interscalene blockade such as severe lung disease.
- Non-English speakers will be excluded because pain scales are not validated in other languages and there is lack of standardization of pain reporting.
- Pregnant patients
- Patients who are currently using opioids and patients with a diagnosis of chronic pain will be excluded.
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, 1 recruiting
- Recruiting
University of Minnesota
Minneapolis, Minnesota, 55455
Candace Nelson, nelso377@umn.edu
About this study
The use of ISB in patients undergoing total shoulder arthroplasty (TSA) is the gold standard and results in significantly reduced pain scores and opioid use. However, patients still have pain and the majority require opioids postoperatively as the interscalene block (ISB) doesn't cover all of the dermatomes impacted during TSA. A pectoserratus block typically provides coverage to additional dermatomes that are impacted during TSA. Currently ISB is performed for every patient and perform a pectoserratus block to a portion of our patients undergoing TSA. The purpose of the study is to determine if the addition of the pectoserratus block to the ISB will results in improvement in pain control and decrease in opioid use, among patients undergoing TSA. This is a randomized prospective controlled trial. All patients undergoing total shoulder arthroplasty or reverse total shoulder arthroplasty aged 18-85 will be considered eligible for the study. Participants will be randomized to one of 2 treatment groups. Group 1 will receive an ultrasound guided pectoserratus block with 25 mL of 0.25% bupivacaine. Group 2 will be the control and receive an ultrasound guided pectoserratus block with 25 mL of saline. The drug will be administered by the anesthesiologist in-charge of the participant's care or an anesthesiologist who is a part of the study team.
- Conditions
- Total Shoulder Arthroplasty
- Being tested
- bupivacaine., Saline
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
bupivacaine.Drug
an ultrasound guided pectoserratus block with 25 mL of 0.25% bupivacaine
SalineDrug
an ultrasound guided pectoserratus block with 25 mL of saline
| Study group | Role | What they receive |
|---|---|---|
| Bupivacaine group | Experimental | Patients undergoing total shoulder arthroplasty or reverse total shoulderarthroplasty aged 18- 85, randomized to the experimental group. Receives: Drug: bupivacaine. |
| control group | Placebo comparator | Patients undergoing total shoulder arthroplasty or reverse total shoulderarthroplasty aged 18- 85, randomized to the control group. Receives: Drug: Saline |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximum pain
This measurement is the highest pain score within the first 24 hours post-op. Please change abbreviations for time frames to minutes, hours and years respectively. And the Scale is 0 being no pain to 10 being worst pain.
Measured: 24 hours postop
Secondary outcomes (3)
Opioid use
Opioid use reported as MME
Measured: 24 hours postop, 48 hours postop
Functional pain score
The scale used in a modified QOR (quality of Recovery) scale. It's 15 questions based off the adult QOR scale which assesses impact of pain on the patient's daily activities
Measured: 24 hours postop, 48hours postop
hospital length of stay
This is a standard post-operative outcome that relates to the surgical recovery period. Idon't know what options you have to select for time frame, but please either select post-op or explain this standard.
Measured: 5 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Nov 2023
- Study start14 Aug 2024
- Primary completion30 Oct 2027 (estimated)
- Study completion30 Oct 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Total Shoulder ArthroplastyStudies of the same condition, open and under way.
- More trials run by University of MinnesotaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 110 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Minnesota
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Jacob Hutchins, MD, MHA, Principal investigator, University of Minnesota
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06143306
- Sponsor's protocol ID
- ANES-2023-32053
- Status last verified
- Mar 2026
- First submitted
- 21 Aug 2023
- Last updated
- 2 Nov 2026
- Results posted
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Addition of a Pectoserratus Block to Interscalene Block in Patients Undergoing Total Shoulder Replacement
- ClinicalTrials.gov ID
- NCT06143306
- Acronym / sponsor ID
- ANES-2023-32053
- Conditions
- Total Shoulder Arthroplasty
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 110 participants (estimated)
- Lead sponsor
- University of MinnesotaUniversity, hospital or other
- Study start
- 14 Aug 2024 (actual)
- Primary completion
- 30 Oct 2027 (estimated)
- Study completion
- 30 Oct 2027 (estimated)
- First posted
- 22 Nov 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The use of ISB in patients undergoing total shoulder arthroplasty (TSA) is the gold standard and results in significantly reduced pain scores and opioid use. However, patients still have pain and the majority require opioids postoperatively as the interscalene block (ISB) doesn't cover all of the dermatomes impacted during TSA. A pectoserratus block typically provides coverage to additional dermatomes that are impacted during TSA. Currently ISB is performed for every patient and perform a pectoserratus block to a portion of our patients undergoing TSA. The purpose of the study is to determine if the addition of the pectoserratus block to the ISB will results in improvement in pain control and decrease in opioid use, among patients undergoing TSA. This is a randomized prospective controlled trial. All patients undergoing total shoulder arthroplasty or reverse total shoulder arthroplasty aged 18-85 will be considered eligible for the study. Participants will be randomized to one of 2 treatment groups. Group 1 will receive an ultrasound guided pectoserratus block with 25 mL of 0.25% bupivacaine. Group 2 will be the control and receive an ultrasound guided pectoserratus block with 25 mL of saline. The drug will be administered by the anesthesiologist in-charge of the participant's care or an anesthesiologist who is a part of the study team.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Bupivacaine group | Experimental | Drug: bupivacaine.Patients undergoing total shoulder arthroplasty or reverse total shoulderarthroplasty aged 18- 85, randomized to the experimental group. |
| control group | Placebo comparator | Drug: SalinePatients undergoing total shoulder arthroplasty or reverse total shoulderarthroplasty aged 18- 85, randomized to the control group. |
Who may qualify
- Ages
- 18 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients undergoing total shoulder arthroplasty or reverse total shoulder arthroplasty;
- Patients aged 18-85 years old.
Key exclusion criteria (5 listed)
- Patients who have an exclusion to regional anesthesia such as pre-existing nerve damage to their brachial plexus or infection at the site of injection.
- Patients who have exclusion to interscalene blockade such as severe lung disease.
- Non-English speakers will be excluded because pain scales are not validated in other languages and there is lack of standardization of pain reporting.
- Pregnant patients
- Patients who are currently using opioids and patients with a diagnosis of chronic pain will be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| bupivacaine.an ultrasound guided pectoserratus block with 25 mL of 0.25% bupivacaine | Drug | Bupivacaine group |
| Salinean ultrasound guided pectoserratus block with 25 mL of saline | Drug | control group |
Primary outcome
Maximum pain
Time frame: 24 hours postop
This measurement is the highest pain score within the first 24 hours post-op. Please change abbreviations for time frames to minutes, hours and years respectively. And the Scale is 0 being no pain to 10 being worst pain.
3 secondary outcomes
Opioid use
Time frame: 24 hours postop, 48 hours postop
Functional pain score
Time frame: 24 hours postop, 48hours postop
hospital length of stay
Time frame: 5 days
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Nov 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Jacob Hutchins, MD, MHA principal investigator
University of Minnesota
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing bupivacaine. and Saline in people with Total Shoulder Arthroplasty, run by University of Minnesota 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 2 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: looking for participants now, as of the sponsor's last update on 2 Nov 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. Some participants in this study may receive a placebo. 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?
Contact Candace Nelson (612-625-7116, nelso377@umn.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Maximum pain (time frame: 24 hours postop). 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 2 Nov 2026; AzTrials last refreshed its copy on 8 Nov 2026.