Adolescent Idiopathic Scoliosis (AIS)Phase 3ESPBNCT07561827
The Effect of Erector Spinae Plane Block (ESPB) on Pediatric Pain Management Following Posterior Spinal Fusion (PSF) Surgery
A Phase 3 study testing Ropivacaine Hydrocloride in people with Adolescent Idiopathic Scoliosis (AIS) and Neuromuscular Scoliosis, run by University of California, San Francisco at 1 site in United States.
Trial summary
This study is being done to better understand the efficacy of an erector spinae plane block (ESPB) in pain management for children with Adolescent Idiopathic Scoliosis or Neuromuscular Scoliosis undergoing Posterior Spinal Fusion surgery. Read more about this study
- Who is it for?
- Ages 10 to 18 years
- Conditions the study is for
- Adolescent Idiopathic Scoliosis (AIS), Neuromuscular Scoliosis, Adolescent Idiopathic Scoliosis
- What is being tested?
- Ropivacaine Hydrocloride
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 42 participants
- Where
- 1 siteUnited States
- Study dates
- 6 Jun 2025to 26 Jan 2027
- Phase
- Phase 3
- 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 10 to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Diagnosis of Adolescent Idiopathic Scoliosis (AIS) or neuromuscular scoliosis
- Undergoing Posterior Spinal Fusion (PSF) Surgery
Who cannot join
- Patients with forms of scoliosis other than AIS or NM Scoliosis.
- Patients undergoing a spinal deformity correction surgery other than Posterior Spinal Fusion Surgery
- Allergy or other contraindication to erector spinae plane block (ESPB) with Ropivacaine patients who are taking pre-operative opioids
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 California San Francisco
San Francisco, California, 94158
Tripta Rughwani, 415-353-4701, tripta.rughwani@ucsf.edu
Stephanie Chu, 415-353-1454, stephanie.chu4@ucsf.edu
About this study
This study is being done to better understand the efficacy of an erector spinae plane block (ESPB) in pain management for children with Adolescent Idiopathic Scoliosis or Neuromuscular Scoliosis undergoing Posterior Spinal Fusion surgery. The study team is trying to find out if receiving the ESPB leads to less pain and less need for pain medication after surgery.
The ESPB involves an injection of a local anesthetic, ropivacaine, into your child's back muscles to help block pain signals.
- Conditions
- Adolescent Idiopathic Scoliosis (AIS), Neuromuscular Scoliosis, Adolescent Idiopathic Scoliosis
- Being tested
- Ropivacaine Hydrocloride
- Keywords
- posterior spinal fusion, pain management
- Medical subject headings
- Agnosia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ropivacaine HydroclorideDrug
This drug is approved as a local anesthetic.
| Study group | Role | What they receive |
|---|---|---|
| ESPB with Ropivacaine + standard postoperative pain protocol | Experimental | Erector spinae plan block (ESPB) with Ropivacaine and standard postoperative pain protocol Receives: Drug: Ropivacaine Hydrocloride |
| No ESPB + standard postoperative pain protocol | No intervention | No erector spinae plane block (ESPB) or type of injection and standard posteropative pain protocol |
What is being measured
The primary outcome is the main question the study is designed to answer.
Compare Oral Morphine Equivalents and Benzodiazepine Doses used in the first 72 hours after surgery among patients who have a ESPB with standard postoperative pain protocols versus those with standard protocols alone.
Institutional pain management protocol: patients have a hydromorphone patient-controlled analgesia pump until post-operative day 1 and as needed (PO) methadone two times a day, as well as PO oxycodone every 4 hours as needed for moderate pain and IV hydromorphone every 2 hours as needed for severe pain. PO diazepam is available every 6 hours for muscle spasms. The oral morphine equivalents and benzodiazepine doses used in the first 72 hours after surgery will be the primary method of assessing postoperative pain and muscle spasms respectively.
Measured: Change from Baseline to 72 hours after surgery.
Evaluate if combining ESPBs with standard postoperative pain protocols reduce postoperative pain scores in the first 24 hours postoperatively as compared to standard protocols alone.
Pain will be measured on a numerical scale from zero to ten, with zero being no pain at all and ten being the worst pain you have ever felt. Scores will be gathered at multiple time points the day of surgery, and post-op day 1, 2 and 3. We will take the average pain score. These numerical pain scores will be the secondary method of assessing postoperative pain.
Measured: From Baseline to 24 hours after surgery.
Assess time to clearance from physical therapy among patients who have a ESPB with standard postoperative pain protocols versus those with standard protocols alone.
Time to clearance from physical therapy (PT) is a measure that demonstrates the amount of time required to obtain a functional level of mobilization after surgery. This mobilization is often pain limited. For neuromuscular patients with mobility limitations, aim 3 will be measured based on when patients are cleared by PT for safe discharge home. We will measure time to clearance in both groups.
Measured: From postoperative day 1 to physical therapy clearance.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 May 2026
- Study start6 Jun 2025
- Primary completion26 Jan 2027 (estimated)
- Study completion26 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Adolescent Idiopathic Scoliosis (AIS)Studies of the same condition, open and under way.
- More trials run by University of California, San FranciscoThe 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 42 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of California, San Francisco
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Ishaan Swarup, MD, Principal investigator, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07561827
- Sponsor's protocol ID
- 24-42517
- Acronym
- ESPB
- Status last verified
- Apr 2026
- First submitted
- 24 Apr 2026
- Last updated
- 1 May 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Chin KJ, Lewis S. Opioid-free Analgesia for Posterior Spinal Fusion Surgery Using Erector Spinae Plane (ESP) Blocks in a Multimodal Anesthetic Regimen. Spine (Phila Pa 1976). 2019 Mar 15;44(6):E379-E383. doi: 10.1097/BRS.0000000000002855.
PubMed 30180150Changoor S, Giakas A, Sacks K, Asma A, Lang RS, Yorgova P, Rogers K, Gabos PG, Shah SA. The Role of Liposomal Bupivacaine in Multimodal Pain Management Following Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis: Faster and Farther With Less Opioids. Spine (Phila Pa 1976). 2024 Jan 15;49(2):E11-E16. doi: 10.1097/BRS.0000000000004702. Epub 2023 May 1.
PubMed 37159268Akesen S, Guler SB, Akesen B. Bilateral bi-level erector spinae plane blocks in scoliosis surgery: a retrospective comparative study. Acta Orthop Traumatol Turc. 2022 Sep;56(5):327-332. doi: 10.5152/j.aott.2022.22019.
PubMed 36300557Tsui BCH, Esfahanian M, Lin C, Policy J, Vorhies J. Moving toward patients being pain- and spasm-free after pediatric scoliosis surgery by using bilateral surgically-placed erector spinae plane catheters. Can J Anaesth. 2020 May;67(5):621-622. doi: 10.1007/s12630-019-01543-0. Epub 2019 Nov 27. No abstract available.
PubMed 31776896Diwan SM, Yamak Altinpulluk E, Khurjekar K, Nair A, Dongre H, Turan A. Bilateral erector spinae plane block for scoliosis surgery: Case series. Rev Esp Anestesiol Reanim (Engl Ed). 2020 Mar;67(3):153-158. doi: 10.1016/j.redar.2019.11.012. Epub 2020 Feb 11. English, Spanish.
PubMed 32057483Melvin JP, Schrot RJ, Chu GM, Chin KJ. Low thoracic erector spinae plane block for perioperative analgesia in lumbosacral spine surgery: a case series. Can J Anaesth. 2018 Sep;65(9):1057-1065. doi: 10.1007/s12630-018-1145-8. Epub 2018 Apr 27.
PubMed 29704223Vergari A, Frassanito L, DI Muro M, Nestorini R, Chierichini A, Rossi M, DI Stasio E. Bilateral lumbar ultrasound-guided erector spinae plane block versus local anesthetic infiltration for perioperative analgesia in lumbar spine surgery: a randomized controlled trial. Minerva Anestesiol. 2022 Jun;88(6):465-471. doi: 10.23736/S0375-9393.22.15950-X. Epub 2022 Feb 22.
PubMed 35191639Kendall MC, Alves L, Traill LL, De Oliveira GS. The effect of ultrasound-guided erector spinae plane block on postsurgical pain: a meta-analysis of randomized controlled trials. BMC Anesthesiol. 2020 May 1;20(1):99. doi: 10.1186/s12871-020-01016-8.
PubMed 32357842Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451.
PubMed 27501016
Study at a glance
From the registry record, last updated by the sponsor on 1 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Erector Spinae Plane Block (ESPB) on Pediatric Pain Management Following Posterior Spinal Fusion (PSF) Surgery
- ClinicalTrials.gov ID
- NCT07561827
- Acronym / sponsor ID
- ESPB / 24-42517
- Conditions
- Adolescent Idiopathic Scoliosis (AIS), Neuromuscular Scoliosis, Adolescent Idiopathic Scoliosis
- Keywords
- posterior spinal fusion, pain management
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 42 participants (estimated)
- Lead sponsor
- University of California, San FranciscoUniversity, hospital or other
- Study start
- 6 Jun 2025 (actual)
- Primary completion
- 26 Jan 2027 (estimated)
- Study completion
- 26 Jan 2027 (estimated)
- First posted
- 1 May 2026 (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.
This study is being done to better understand the efficacy of an erector spinae plane block (ESPB) in pain management for children with Adolescent Idiopathic Scoliosis or Neuromuscular Scoliosis undergoing Posterior Spinal Fusion surgery. The study team is trying to find out if receiving the ESPB leads to less pain and less need for pain medication after surgery.
The ESPB involves an injection of a local anesthetic, ropivacaine, into your child's back muscles to help block pain signals.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| ESPB with Ropivacaine + standard postoperative pain protocol | Experimental | Drug: Ropivacaine HydroclorideErector spinae plan block (ESPB) with Ropivacaine and standard postoperative pain protocol |
| No ESPB + standard postoperative pain protocol | No intervention | –No erector spinae plane block (ESPB) or type of injection and standard posteropative pain protocol |
Who may qualify
- Ages
- 10 to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- Diagnosis of Adolescent Idiopathic Scoliosis (AIS) or neuromuscular scoliosis
- Undergoing Posterior Spinal Fusion (PSF) Surgery
Key exclusion criteria (3 listed)
- Patients with forms of scoliosis other than AIS or NM Scoliosis.
- Patients undergoing a spinal deformity correction surgery other than Posterior Spinal Fusion Surgery
- Allergy or other contraindication to erector spinae plane block (ESPB) with Ropivacaine patients who are taking pre-operative opioids
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 |
|---|---|---|
| Ropivacaine HydroclorideThis drug is approved as a local anesthetic. | Drug | ESPB with Ropivacaine + standard postoperative pain protocol |
Primary outcome
Compare Oral Morphine Equivalents and Benzodiazepine Doses used in the first 72 hours after surgery among patients who have a ESPB with standard postoperative pain protocols versus those with standard protocols alone.
Time frame: Change from Baseline to 72 hours after surgery.
Institutional pain management protocol: patients have a hydromorphone patient-controlled analgesia pump until post-operative day 1 and as needed (PO) methadone two times a day, as well as PO oxycodone every 4 hours as needed for moderate pain and IV hydromorphone every 2 hours as needed for severe pain. PO diazepam is available every 6 hours for muscle spasms. The oral morphine equivalents and benzodiazepine doses used in the first 72 hours after surgery will be the primary method of assessing postoperative pain and muscle spasms respectively.
Evaluate if combining ESPBs with standard postoperative pain protocols reduce postoperative pain scores in the first 24 hours postoperatively as compared to standard protocols alone.
Time frame: From Baseline to 24 hours after surgery.
Pain will be measured on a numerical scale from zero to ten, with zero being no pain at all and ten being the worst pain you have ever felt. Scores will be gathered at multiple time points the day of surgery, and post-op day 1, 2 and 3. We will take the average pain score. These numerical pain scores will be the secondary method of assessing postoperative pain.
Assess time to clearance from physical therapy among patients who have a ESPB with standard postoperative pain protocols versus those with standard protocols alone.
Time frame: From postoperative day 1 to physical therapy clearance.
Time to clearance from physical therapy (PT) is a measure that demonstrates the amount of time required to obtain a functional level of mobilization after surgery. This mobilization is often pain limited. For neuromuscular patients with mobility limitations, aim 3 will be measured based on when patients are cleared by PT for safe discharge home. We will measure time to clearance in both groups.
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 1 May 2026.
- Background: PubMed 30180150Chin KJ, Lewis S. Opioid-free Analgesia for Posterior Spinal Fusion Surgery Using Erector Spinae Plane (ESP) Blocks in a Multimodal Anesthetic Regimen. Spine (Phila Pa 1976). 2019 Mar 15;44(6):E379-E383. doi: 10.1097/BRS.0000000000002855.
- Background: PubMed 37159268Changoor S, Giakas A, Sacks K, Asma A, Lang RS, Yorgova P, Rogers K, Gabos PG, Shah SA. The Role of Liposomal Bupivacaine in Multimodal Pain Management Following Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis: Faster and Farther With Less Opioids. Spine (Phila Pa 1976). 2024 Jan 15;49(2):E11-E16. doi: 10.1097/BRS.0000000000004702. Epub 2023 May 1.
- Background: PubMed 36300557Akesen S, Guler SB, Akesen B. Bilateral bi-level erector spinae plane blocks in scoliosis surgery: a retrospective comparative study. Acta Orthop Traumatol Turc. 2022 Sep;56(5):327-332. doi: 10.5152/j.aott.2022.22019.
- Background: PubMed 31776896Tsui BCH, Esfahanian M, Lin C, Policy J, Vorhies J. Moving toward patients being pain- and spasm-free after pediatric scoliosis surgery by using bilateral surgically-placed erector spinae plane catheters. Can J Anaesth. 2020 May;67(5):621-622. doi: 10.1007/s12630-019-01543-0. Epub 2019 Nov 27. No abstract available.
- Background: PubMed 32057483Diwan SM, Yamak Altinpulluk E, Khurjekar K, Nair A, Dongre H, Turan A. Bilateral erector spinae plane block for scoliosis surgery: Case series. Rev Esp Anestesiol Reanim (Engl Ed). 2020 Mar;67(3):153-158. doi: 10.1016/j.redar.2019.11.012. Epub 2020 Feb 11. English, Spanish.
- Background: PubMed 29704223Melvin JP, Schrot RJ, Chu GM, Chin KJ. Low thoracic erector spinae plane block for perioperative analgesia in lumbosacral spine surgery: a case series. Can J Anaesth. 2018 Sep;65(9):1057-1065. doi: 10.1007/s12630-018-1145-8. Epub 2018 Apr 27.
- Background: PubMed 35191639Vergari A, Frassanito L, DI Muro M, Nestorini R, Chierichini A, Rossi M, DI Stasio E. Bilateral lumbar ultrasound-guided erector spinae plane block versus local anesthetic infiltration for perioperative analgesia in lumbar spine surgery: a randomized controlled trial. Minerva Anestesiol. 2022 Jun;88(6):465-471. doi: 10.23736/S0375-9393.22.15950-X. Epub 2022 Feb 22.
- Background: PubMed 32357842Kendall MC, Alves L, Traill LL, De Oliveira GS. The effect of ultrasound-guided erector spinae plane block on postsurgical pain: a meta-analysis of randomized controlled trials. BMC Anesthesiol. 2020 May 1;20(1):99. doi: 10.1186/s12871-020-01016-8.
- Background: PubMed 27501016Forero M, Adhikary SD, Lopez H, Tsui C, Chin KJ. The Erector Spinae Plane Block: A Novel Analgesic Technique in Thoracic Neuropathic Pain. Reg Anesth Pain Med. 2016 Sep-Oct;41(5):621-7. doi: 10.1097/AAP.0000000000000451.
- Individual participant dataSharing planned: No
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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.
Ishaan Swarup, MD principal investigator
University of California, San Francisco
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Ropivacaine Hydrocloride in people with Adolescent Idiopathic Scoliosis (AIS) and Neuromuscular Scoliosis, run by University of California, San Francisco 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 3 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 1 May 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 Tripta Rughwani (415-353-4701, tripta.rughwani@ucsf.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Compare Oral Morphine Equivalents and Benzodiazepine Doses used in the first 72 hours after surgery among patients who have a ESPB with standard postoperative pain protocols versus those with standard protocols alone. (time frame: Change from Baseline to 72 hours after surgery.). The study lists 3 primary outcomes in all. 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 NCT07561827, which also lists 9 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 1 May 2026.