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ClinicalTrials.gov public records Last synced Oct 22, 2026, 3:44 PM EDT

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Showing 25–48 of 87 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Subarachnoid Block Clear all
Completed Phase 4 Interventional Results available

Intrathecal Opioids for Pain Control After Cesarean Delivery: Determining the Optimal Dose

NCT02009722
View directory record Official record
Conditions
Analgesia, Obstetrical, Cesarean Section
Interventions
Morphine, Hydromorphone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 25, 2016 · Synced Oct 22, 2026, 3:44 PM EDT
Recruiting Phase 2 Interventional

Reversal of Spinal Anesthesia Residual Motor Block Via Intrathecal Catheter

NCT07404982
View directory record Official record
Conditions
Joint Replacement Surgery
Interventions
Normal Saline 10 mL Injection
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
Not listed
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 22, 2026, 3:44 PM EDT
Terminated Not applicable Interventional Results available

Evaluation of Patient Reported Outcomes (PRO) After Total Knee Arthroplasty (TKA) Under Spinal Anesthesia

NCT03053453
View directory record Official record
Conditions
Knee Injuries
Interventions
Spinal Surgery, Verasense Knee System device
Procedure · Device
Lead sponsor
NYU Langone Health
Other
Eligibility
50 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional

Audiovisual Distraction for Patients Undergoing Total Knee or Hip Replacement Surgery

NCT03191838
View directory record Official record
Conditions
Anesthesia
Interventions
Audiovisual Distraction
Other
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 22, 2026, 3:44 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Minimizing Nausea and Vomiting During Spinals for CS

NCT02872935
View directory record Official record
Conditions
Nausea, Vomiting
Interventions
Glycopyrrolate, Normal Saline
Drug
Lead sponsor
Kokila N Thenuwara
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 9, 2020 · Synced Oct 22, 2026, 3:44 PM EDT
Recruiting Not applicable Interventional

General vs Spinal in Total Joint Arthroplasty (TJA)

NCT06747494
View directory record Official record
Conditions
Knee Osteoarthritis, Hip Osteoarthritis
Interventions
General Anesthesia, Spinal Anesthesia
Procedure
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
2,396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study to Find Optimal Dose of Local Spinal Anesthetic (Mepivacaine) Combined With Narcotic (Fentanyl) For Knee Surgery

NCT01701102
View directory record Official record
Conditions
Arthroscopic Knee Surgery
Interventions
Mepivacaine (24 mg) plus fentanyl, Mepivacaine (27 mg) plus fentanyl, Mepivacaine (30 mg) plus fentanyl, Mepivacaine
Procedure
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 60 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 5, 2016 · Synced Oct 22, 2026, 3:44 PM EDT
Not yet recruiting Not applicable Interventional

Noninvasive CA Monitoring Validation and Autonomic Modulation in Aneurysmal Subarachnoid Hemorrhage

NCT07577739
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal, Delayed Cerebral Ischemia, Cerebral Vasospasm, Autonomic Nervous System Diseases
Interventions
Right-Sided Cervical Sympathetic Block at C6, Transcutaneous Auricular Vagal Nerve Stimulation (taVNS)
Procedure · Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional

The Severity Of Hypotension Comparing Three Positions During Spinal Anesthesia For Cesarean Delivery

NCT02146898
View directory record Official record
Conditions
Hypotension
Interventions
Position
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 4, 2017 · Synced Oct 22, 2026, 3:44 PM EDT
Terminated Phase 4 Interventional Results available

Spinal Anesthesia in Total Hip Arthroplasty

NCT02818894
View directory record Official record
Conditions
Total Hip Arthroplasty
Interventions
Lidocaine, Bupivacaine
Drug
Lead sponsor
Thomas L Bradbury
Other
Eligibility
18 Years to 90 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 23, 2022 · Synced Oct 22, 2026, 3:44 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Pre-post Spinal Popliteal Block

NCT05354791
View directory record Official record
Conditions
Foot Surgery, Ankle Surgery
Interventions
Not listed
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Oct 22, 2026, 3:44 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Use of Ultrasound in Obstetric Neuraxial Analgesia and Anesthesia Data Base

NCT01192074
View directory record Official record
Conditions
Pregnancy
Interventions
Ultrasound
Device
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 5, 2016 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Phase 1 Interventional

Efficacy of Percutaneous SPG Block in Aneurysmal SAH

NCT04331938
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Headache
Interventions
Regional anesthetic SPG block-bilateral
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 9, 2024 · Synced Oct 22, 2026, 3:44 PM EDT
Enrolling by invitation Phase 3 Interventional Accepts healthy volunteers

GA + ESP vs. SA + ESP in Lumbar Decompression Surgeries

NCT05444751
View directory record Official record
Conditions
Lumbar Disc Herniation, Lumbar Disc Disease, Lumbar Radiculopathy
Interventions
General anesthetic, SA + ESP
Drug
Lead sponsor
Hospital for Special Surgery, New York
Other
Eligibility
18 Years to 80 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional

The Effect of Nasal Continuous Positive Airway Pressure (N-CPAP) on Arterial pCO2 During Spinal Anesthesia

NCT01622647
View directory record Official record
Conditions
Knee Replacement Surgery
Interventions
Nasal Continuous Positive Airway Pressure (NCPAP)
Other
Lead sponsor
Pediatrix
Other
Eligibility
21 Years to 69 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Wilmington, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 6, 2013 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Mepivacaine vs. Bupivacaine Spinal Anesthetic in Total Knee Arthroplasty

NCT02980926
View directory record Official record
Conditions
Anesthesia, Spinal, Arthroplasty, Replacement, Knee, Pain Management, Early Ambulation, Ambulatory Surgical Procedures
Interventions
Mepivacaine, Bupivacaine
Drug
Lead sponsor
Henry Ford Health System
Other
Eligibility
40 Years to 90 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
West Bloomfield, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 27, 2017 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of the Duration of Bupivacaine Spinal Block in Orthopedic Procedures With and Without Epinephrine Wash

NCT02619409
View directory record Official record
Conditions
Arthropathy of Hip, Arthropathy of Knee
Interventions
Bupivacaine Only, EPI25, EPI50 group, EPI75 group, EPI100 group
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 6, 2023 · Synced Oct 22, 2026, 3:44 PM EDT
Withdrawn Not applicable Interventional

Extra Sitting Time After Spinal Anesthesia for Cesarean Section and Fetal Well-being

NCT02893696
View directory record Official record
Conditions
Complications; Cesarean Section, Hypotension
Interventions
Various sitting time
Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 31, 2019 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Phase 2Phase 3 Interventional

Intravenous Ondansetron to Attenuate the Hypotensive, Bradycardic Response to Spinal Anesthesia in Healthy Parturients

NCT01414777
View directory record Official record
Conditions
Hypotension, Pregnancy
Interventions
ondansetron, placebo
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2022 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Early Phase 1 Interventional

Pterygopalatine Fossa Block in Aneurysmal Subarachnoid Hemorrhage

NCT05925478
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal
Interventions
Ptergyopalatine Fossa Block, Bupivacaine 0.25% Injectable Solution
Procedure · Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Oct 22, 2026, 3:44 PM EDT
Recruiting Phase 2 Interventional

BLOCK-SAH - PPF-Block for Post-SAH Headache

NCT06008795
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal, Headache
Interventions
Pterygopalatine Fossa Nerve Block with Ropivacaine and Dexamethasone, Placebo Pteryogpalatine Fossa Injection
Drug · Procedure
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 85 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
13
States / cities
Gainesville, Florida • Miami, Florida • Stuart, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Phase 2 Interventional Results available

1% Chloroprocaine(PF) vs. Bupivacaine Spinals

NCT03324984
View directory record Official record
Conditions
Return of Motor and Sensory Blockade, Anesthesia, Spinal, Decrease Discharge Time Status Post Hemorrhoidectomy
Interventions
1% chloroprocaine, 0.75% bupivacaine
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 28, 2025 · Synced Oct 22, 2026, 3:44 PM EDT
Completed Not applicable Interventional Results available

A Trial To Assess Risk of Delirium in Older Adults Undergoing Hip Fracture Surgery With Spinal or General Anesthesia

NCT02190903
View directory record Official record
Conditions
Postoperative Complications, Hip Fracture, Delirium
Interventions
General endotracheal anesthesia, Regional (spinal) Anesthesia
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2018 · Synced Oct 22, 2026, 3:44 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Does Spinal Anesthesia for Prolapse Surgery With Lead to Urinary Retention?

NCT02547155
View directory record Official record
Conditions
Urinary Retention, Uterine Prolapse
Interventions
Spinal anesthesia, General anesthesia
Procedure
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Oct 22, 2026, 3:44 PM EDT