Pain, Postoperative

136

Review clinical trials related to Pain, Postoperative. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Impact of Preoperative Opioid-free Multimodal Analgesia on Time to Trial of Void in Ambulatory Urogynecologic Surgeries

This is a double-arm randomized control trial evaluating the impact of preoperative opioid-free analgesia on time to trial of void in ambulatory urogynecologic surgeries. The investigators hypothesize that receipt of acetaminophen, celecoxib and gabapentin preoperatively versus acetaminophen alone will reduce the time to trial of void in patients undergoing same-day minor urogynecologic procedures.

Participants needed: 70
Trial details
Phase: Phase 4Biological sex: FemaleType: InterventionalSponsor: Northwell HealthUpdated: Oct 5, 2026Locations: 1
Eligibility criteria

Provision of signed and dated informed consent form [+5]

Pregnancy or lactation [+11]

Status: Not yet recruiting

Low-Volume Pericapsular Nerve Group (PENG) Block With Dexamethasone vs Standard-Volume PENG Block After Total Hip Arthroplasty

The goal of this clinical trial is to compare two regimens of the pericapsular nerve group (PENG) block, an ultrasound-guided injection of local anaesthetic targeting the nerves supplying the front of the hip joint, for postoperative pain relief and quadriceps muscle function in patients undergoing primary unilateral total hip arthroplasty under spinal anaesthesia. The PENG block was originally proposed as a motor-sparing technique. However, the standard 20 mL volume can spread to the femoral nerve and cause quadriceps weakness. Reducing the injected volume may limit this spread and better preserve quadriceps strength, but smaller volumes risk shorter analgesic duration. Adding dexamethasone to a low-volume injection may compensate for the reduced volume. The main questions this trial aims to answer are: * Does a low-volume PENG block (10 mL bupivacaine 0.25%) with 4 mg dexamethasone differ from a standard-volume PENG block (20 mL bupivacaine 0.25%) in the time to first rescue analgesia? * Does it differ in the incidence and severity of quadriceps weakness on the operated side? Researchers will compare: * Group A (standard-volume PENG block): 20 mL bupivacaine 0.25%. * Group B (low-volume PENG block with dexamethasone): 5 mL bupivacaine 0.5% plus 4 mL normal saline plus 4 mg dexamethasone in 1 mL, giving 10 mL of bupivacaine 0.25%. Participants will: * Receive spinal anaesthesia with heavy bupivacaine 0.5% and fentanyl. * Be randomly allocated to Group A or Group B using computer-generated random numbers. * Receive the PENG block under ultrasound guidance, performed by an anaesthesiologist expert in regional anaesthesia. * Receive intravenous paracetamol 1 g every 8 hours, with intravenous nalbuphine 5 mg as rescue analgesia when the pain score (NRS) is 4 or more. * Be assessed by an anaesthesiologist blinded to group allocation for pain scores at rest and on movement at 2, 6, 12 and 24 hours; quadriceps strength (MRC scale and straight leg raise) at 6, 12 and 24 hours compared with the preoperative baseline; total opioid consumption over the first 24 hours; and time to first ambulation within the first 24 hours. The primary outcome is the time from completion of the PENG block to the first administration of rescue analgesia, recorded over the first 24 hours postoperatively. The study will be conducted at Ain Shams University Hospitals (El Demerdash Hospital) and will include 60 patients (30 per group), aged 50 to 70 years, ASA physical status I or II.

Participants needed: 60
Trial details
Phase: Phase 4Age: 50-70Biological sex: AllType: InterventionalSponsor: Ain Shams UniversityUpdated: Oct 5, 2026Locations: 1
Eligibility criteria

Physical status ASA I or II. [+3]

Patient refusal. [+8]

Status: Recruiting

Intravenous Dexamethasone With Single-Shot Versus Continuous Brachial Plexus Block for Rebound Pain After Shoulder Surgery

Shoulder surgery often causes severe pain after the operation. To control this pain, doctors commonly perform a nerve block (interscalene brachial plexus block), which numbs the shoulder area. However, when the effect of a single-injection nerve block wears off, many patients experience sudden, intense pain known as "rebound pain". One way to prevent rebound pain is to place a thin catheter near the nerves so that local anesthetic can be given continuously for a longer period (continuous nerve block). However, this method is technically demanding and can cause problems such as catheter dislodgement, infection, and inconvenience for patients. Another simpler option is to give a single-injection nerve block together with an intravenous (IV) injection of dexamethasone, a steroid medication known to prolong the effect of nerve blocks and reduce rebound pain. The purpose of this study is to determine whether a single-injection nerve block combined with IV dexamethasone (5 mg) is not inferior to a continuous nerve block in preventing rebound pain after shoulder surgery. A total of 92 adult patients scheduled for elective shoulder surgery will be randomly assigned to one of the two groups. The main outcome is the rebound pain score, defined as the difference between the last pain score recorded in the recovery room (while the nerve block is still working) and the highest pain score reported within the first 24 hours after the nerve block. The investigators expect that the simpler single-injection method with IV dexamethasone will provide comparable pain control while avoiding the complications and inconvenience of catheter-based continuous nerve blocks.

Participants needed: 92
Trial details
Phase: Phase 4Age: 19-79Biological sex: AllType: InterventionalSponsor: Seoul National University HospitalUpdated: Sep 29, 2026Locations: 1
Eligibility criteria

Adult patients aged 19 to 79 years scheduled for elective shoulder surgery under...

Pre-existing neurological deficit of the brachial plexus [+9]

Status: Recruiting

Prospective Study of Sensation and Satisfaction in Cancer and Transgender Mastectomy Patients

During breast surgery, sensory nerves are cut which may lead to reduced sensation and pain. Surgical reinnervation techniques have been developed with the aim of improving postoperative sensation by preserving the nerves and connecting them to the nipple and areola. The investigators aim to compare postoperative sensation and patient reported outcomes in patients undergoing reinnervation versus those not undergoing reinnervation to determine if there is a difference. The investigators will investigate this in patients undergoing gender-affirming mastectomy, implant-based breast reconstruction and autologous breast reconstruction. The investigators will use various tools that measure sensation quantitatively.

Participants needed: 400
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Weill Medical College of Cornell UniversityUpdated: Sep 23, 2026Locations: 2
Eligibility criteria

Age over 18 [+2]

Patient has a nerve condition that does not allow for assessment of sensation [+3]

Status: Recruiting

Latinx Children and Surgery

Over 60 million persons in the United States (US) identify themselves as Latinx and 25.6% are children under the age of 16. Surgical disparities for adults and children have been identified as a major problem in the US and can be experienced at multiple points along a patient's health care trajectory. Data from the investigator's center indicates that a substantial portion of Latinx children who undergo surgery experience high anxiety and postoperative pain as well as postoperative impairments in psychological and physical functioning as compared to White non-Latin children who undergo surgery. Recent growth in use of mobile devices provides us an opportunity to create low-cost mobile health (mHealth) behavioral interventions to reduce this disparity in surgical outcomes. In a previous National Institutes of Health (NIH) award, the principal investigator (PI) developed and tested an evidence based mHealth tailored intervention (WebTIPS) that aims to prepare and be a companion of a child and their family during a surgical event. WebTIPS aims to enhance the recovery of the child in several ways such as reducing anxiety and pain and is based on information provision, modeling, and teaching of coping skills. WebTIPS, however, was developed and validated with a population of primarily White non-Latinx English-speaking children and their parents. Unfortunately, it is well established that mHealth interventions are significantly less effective when used with specific ethnic minorities unless they underwent a process of cultural adaptation. Over the past 4-years, the investigators have established multiple academic and community collaborations, conducted extensive participatory research with Latinx stakeholders and used the heuristic framework and a modified ecological validity model to culturally adapt WebTIPS. The culturally adapted intervention is called L-WebTIPS. The overall aim of this application is to reduce surgical disparities in a population of Latinx children undergoing surgery. The first phase of this application (R61) includes web programming of L-WebTIPS, and a feasibly randomized control trial (RCT) to test this intervention. The second phase (R33) includes a multi-center RCT which aims to determine the effectiveness of L-WebTIPS compared to attention control intervention in decreasing postoperative pain, opioids consumption and lowering anxiety in Latinx children undergoing outpatient surgery. Secondary aims of the R33 include examining the impact of L-WebTIPS on home-based clinical recovery parameters such as pain, analgesic requirements, new onset behavioral changes and return to normal daily activity in Latinx children undergoing outpatient surgery. The investigators also plan to determine if the use of L-WebTIPS reduces anxiety and improve experience among the parents of Latinx children undergoing surgery. Finally, the investigators plan to determine if the use of L-WebTIPS reduces anxiety and enhance experience among the parents of Latinx children undergoing surgery. The investigators submit that using a cultural adaption process for an existing validated intervention will accelerate the process of reducing surgical disparities and bringing an effective intervention to clinical settings and routine use.

Participants needed: 120
Trial details
Age: 2-12Biological sex: AllType: InterventionalSponsor: University of California, IrvineUpdated: Sep 24, 2026Locations: 1
Eligibility criteria

Children age 2-12 who are scheduled to undergo outpatient surgery. [+3]

Children with health status defined by ASA status IV-V will be excluded from thi... [+5]

Status: Not yet recruiting

Long-acting Local Vaginal Cuff Anesthesia Following Hysterectomy

The purpose of this study is to compare recovery unit and post operation day (POD) 1 pain score in women following elective robotic assisted TLH (RA-TLH) for benign indication with and without local vaginal cuff injection of short acting bupivacaine and long acting Exparel, to evaluate postoperative pain management and control by assessing the amount and frequency of NSAIDS and opioids taken and to assess bleeding, vaginal discharge and or vaginal dehiscence at the postoperative follow up visit.

Participants needed: 104
Trial details
Phase: Phase 1, Phase 2Age: 18+Biological sex: FemaleType: InterventionalSponsor: The University of Texas Health Science Center, HoustonUpdated: Sep 25, 2026Locations: 1
Eligibility criteria

at least 66.5kg weight [+1]

Combined operation or alternative approach [+1]

Status: Recruiting

PENG Block + LIA For Endoprosthesis Surgery

The goal of this clinical trial is to learn if a new local anesthesia technique can control pain as well as the standard spinal anesthesia for adults having hip endoprosthesis surgery. The main questions it aims to answer are: * Is the new local anesthesia technique as effective as standard spinal anesthesia in managing pain during the first two days after surgery? * Does the new technique allow participants to move their leg sooner after the operation? Researchers will compare the new local anesthesia technique (numbing medicine injected directly around the hip joint) to standard spinal anesthesia (a numbing injection in the back) to see if the new technique works just as well for pain control while possibly causing fewer side effects like nausea. Participants who join this study will be randomly placed into one of two groups. One group will receive the standard spinal anesthesia before their surgery. The other group will receive the new local anesthesia technique before their surgery. After the operation, researchers will track the amount of extra pain medicine each participant uses and will check their ability to move their hip, knee, and foot.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: ASST Gaetano Pini-CTOUpdated: Sep 22, 2026Locations: 1
Eligibility criteria

Provision of signed and dated informed consent form. [+3]

Failure to provide informed consent. [+6]

Status: Recruiting

Intrathecal Morphine and Transversalis Fascia Plane Block for Analgesia After Open Inguinal Hernia Repair

Inguinal hernia is a common surgical condition, and open inguinal hernia repair may be associated with significant postoperative pain. Inadequate pain control can delay early mobilization, reduce patient comfort, and increase the need for opioid analgesics. Therefore, effective postoperative pain management is an important component of perioperative care. Several analgesic strategies can be used after open inguinal hernia repair, including systemic multimodal analgesia, neuraxial opioids, and regional anesthesia techniques. Intrathecal morphine can provide prolonged postoperative analgesia but may be associated with opioid-related adverse effects such as nausea, vomiting, pruritus, urinary retention, and respiratory depression. Ultrasound-guided transversalis fascia plane block is a regional anesthesia technique designed to provide analgesia to the inguinal region while potentially reducing systemic opioid requirements. The aim of this prospective, randomized, assessor-blinded, controlled trial is to compare the postoperative analgesic efficacy of intrathecal morphine, transversalis fascia plane block, and spinal anesthesia alone in adult patients undergoing elective open unilateral inguinal hernia repair.

Participants needed: 90
Trial details
Age: 18-80Biological sex: AllType: InterventionalSponsor: Atatürk Chest Diseases and Chest Surgery Training and Research HospitalUpdated: Sep 21, 2026Locations: 1
Eligibility criteria

Age between 18 and 80 years [+3]

Patient refusing the procedure [+3]

Status: Recruiting

One-level and Bi-level ESPB Application in Patients Undergoing Breast Surgery

Acute pain after breast surgery can significantly reduce the quality of life for patients. If acute pain is not adequately treated, it can develop into chronic pain. Thoracic epidural analgesia, thoracic paravertebral block, erector spinae plane block, and serratus anterior plane block are frequently applied blocks. However, ESPB, being a fascial plane block, can yield inconsistent results regarding distribution and dermatomal area. In recent years, there has been an increase in publications applying ESPB from two levels to achieve wider distribution. As a result, this study aims to compare the analgesic efficacy of single-level (Thoracic 3) and two-level (Thoracic 2, Thoracic 4) ESPB applications.

Participants needed: 70
Trial details
Age: 18-80Biological sex: FemaleType: InterventionalSponsor: Atatürk Chest Diseases and Chest Surgery Training and Research HospitalUpdated: Sep 15, 2026Locations: 1
Eligibility criteria

Age between 18 and 80 years [+3]

Patient refusing the procedure [+3]

Status: Recruiting

Perioperative Intravenous Nimodipine Trial

The role of perioperative IV administration of nimodipine, an L-type calcium channel antagonist which is capable of crossing the blood-brain barrier, on peri-operative opioid and anesthetics requirements, pain intensity, opioid-related side effects and early postoperative bowel mobility in patients undergoing surgical treatment for bowel cancer with open radical colectomy remains scarcely explored. A prospective double-blind, randomized controlled trial investigating the effect of perioperative IV administration of nimodipine in patients undergoing open colectomy for cancer treatment is therefore conducted.

Participants needed: 40
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: University of IoanninaUpdated: Sep 14, 2026Locations: 1
Eligibility criteria

Patients scheduled for open surgical treatment of bowel cancer at the General Ho...

Age < 18 years, > 75 years [+7]

Status: Recruiting

Liposomal Bupivacaine Plus Plain Bupivacaine Versus Dexamethasone Plus Plain Bupivacaine in the Supraclavicular Brachial Plexus Block in Patients With Risk Factors for Severe Acute Postoperative Pain

The supraclavicular brachial plexus block (BPB) is a frequently used anaesthetic method for upper limb surgeries, including distal radial fracture surgery. Adding liposomal bupivacaine to BPB has shown promise in enhancing postoperative pain control. A previous randomized controlled trial demonstrated that it reduced pain scores and OBAS compared to plain bupivacaine alone, especially on postoperative day (POD) 1. Adding adjuncts to non-liposomal local anaesthetics can also enhance and prolong postoperative pain relief. The effectiveness of liposomal bupivacaine compared to adjuncts like dexamethasone and dexmedetomidine remains unclear. Since liposomal bupivacaine is more expensive, it is crucial to compare its analgesic efficacy with these alternatives. A randomized controlled trial comparing liposomal bupivacaine versus dexamethasone in the interscalene BPB for shoulder surgery found that liposomal bupivacaine resulted in statistically significantly lower pain scores and less pain interference in the Brief Pain Inventory, although the reduction was not considered clinically relevant. Its high cost may therefore limit its routine use unless specific clinical contexts where its efficacy is maximized are identified. Notably, patients with risk factors like psychological factors, preoperative pain, and prior analgesic use may benefit most from its application. A randomized controlled trial to compare the analgesic efficacy of liposomal bupivacaine plus plain bupivacaine versus dexamethasone plus plain bupivacaine in supraclavicular BPB for patients at higher risk of poor acute pain control post distal radial fracture surgery will be conducted. Patients with severe preoperative pain, opioid use, depressive symptoms, anxiety symptoms, and/or higher energy and high-grade fracture cases will be selected. The primary outcome measured is the intensity of acute postoperative pain with movement in the first 48 hours after surgery. Important secondary outcomes include pain intensity at rest, opioid consumption, OBAS scores, chronic pain, and upper limb functionality.

Participants needed: 90
Trial details
Phase: Phase 3Age: 18-90Biological sex: AllType: InterventionalSponsor: The University of Hong KongUpdated: Sep 8, 2026Locations: 1
Eligibility criteria

American Society of Anesthesiologist (ASA) status I-III [+8]

Revision surgery [+17]

Status: Recruiting

Trajectories of Recovery After Intravenous Propofol Versus Inhaled VolatilE Anesthesia Trial

The investigators will conduct a 13,000-patient randomized multi-center trial to determine (i) which general anesthesia technique yields superior patient recovery experiences in any of three surgical categories ((a) major inpatient surgery, (b) minor inpatient surgery, (c) outpatient surgery) and (ii) whether TIVA confers no more than a small (0.2 %) increased risk of intraoperative awareness than INVA in patients undergoing both outpatient and inpatient surgeries

Participants needed: 13,000
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Washington University School of MedicineUpdated: Sep 4, 2026Locations: 24
Eligibility criteria

Aged 18 years or older [+1]

Inability to provide informed consent in English (at all study sites) or Spanish... [+8]

Status: Recruiting

Low Versus Standard Volume EXORA Block in Laparoscopic Cholecystectomy

The original EXORA block used high local anesthetic volume (50 mL total), raising concerns about local anesthetic systemic toxicity (LAST). In such a bilaterally administered regional technique, evaluating the efficacy of a reduced-volume approach is warranted to maximize patient safety.

Participants needed: 96
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Fayoum University HospitalUpdated: Sep 2, 2026Locations: 1
Eligibility criteria

American Society of Anesthesiologists (ASA) physical status I or II. [+1]

• Patient refusal to participate. [+10]

Status: Not yet recruiting

Remote Assessment of Pain and Recovery Quality After Surgery Using a Digital Form: A Pilot Study

After surgery, doctors need to know how patients are doing, especially in the first hours after they leave the recovery room. This can be hard to track once patients go to a regular hospital room, and some symptoms - like pain or nausea - may go unnoticed. This study tests whether an online form, sent to patients' phones, can help doctors check on pain and recovery in the first 12 and 24 hours after surgery. Patients (or a family member helping them) will receive a link by WhatsApp and answer a short set of questions about their pain, nausea, medications, and how they are recovering. The main goal is to find out whether patients are willing and able to use this online form, and whether it is a helpful and practical way to follow up with them after surgery.

Participants needed: 213
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Hospital de BaseUpdated: Aug 31, 2026Locations: 1
Eligibility criteria

Age ≥ 18 years [+4]

Anticipated postoperative admission to the intensive care unit (ICU) [+4]

Status: Recruiting

Comparing Analgesic Regimen Effectiveness and Safety for Surgery (CARES) Trial

This trial is being completed to compare two commonly used options to treat pain after surgery. Participants that undergo gallbladder removal, hernia repair, and breast lump removal will be eligible to enroll. Eligible participants will be randomized to 1 of 2 groups of medications (Non-Steroidal Anti-Inflammatory Drugs (NSAIDS) plus acetaminophen or low dose opioids plus acetaminophen). It is anticipated that the NSAID group will have superior clinical outcomes and fewer side effects when compared to the opioid group.

Participants needed: 900
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: University of MichiganUpdated: Aug 28, 2026Locations: 8
Eligibility criteria

No significant analgesic medication use before surgery: For this study, signific... [+1]

Anticipated other surgery within 6 months or anticipated life expectancy of less... [+1]

Status: Not yet recruiting

Acetaminophen vs Placebo for Postoperative Analgesia After Abdominal Surgery

This study investigates whether oral acetaminophen, when added to standard pain management, reduces opioid use and pain after major abdominal surgery, compared to a placebo (inactive pill). Patients undergoing planned abdominal surgery under general anesthesia will be randomly assigned to receive either acetaminophen or a placebo tablet before surgery and every 6 hours afterward for 48 hours, in addition to their usual pain medication. Researchers will measure how much opioid pain medication patients need, how much pain they report, and how satisfied they are with their pain control during the first two days after surgery. The goal is to determine whether oral acetaminophen provides a genuine benefit beyond placebo in reducing opioid use while maintaining adequate pain control.

Participants needed: 1,504
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Konya City HospitalUpdated: Aug 25, 2026
Eligibility criteria

Written informed consent [+5]

Pregnant or nursing (breastfeeding) women [+3]

Status: Recruiting

Liposomal Bupivacaine vs Standard Bupivacaine for Post-Rhinoplasty Analgesia

The purpose of this study is to find out which pain medication is more effective in reducing pain after nose surgery (rhinoplasty). The investigators are looking to find the best treatment to reduce discomfort and improve the healing process for patients having nose surgery.

Participants needed: 45
Trial details
Phase: Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: Washington University School of MedicineUpdated: Aug 18, 2026Locations: 1
Eligibility criteria

Adult patients (≥18 years) undergoing open rhinoplasty of any indication or comp...

Chronic pain condition requiring ongoing or scheduled analgesic therapy, or any... [+1]

Status: Recruiting

Dexamethasone Palmitate for Postoperative Pain

Postoperative pain remains highly prevalent and inadequately managed in a significant proportion of surgical patients, often leading to delayed recovery, increased opioid consumption, and potential progression to chronic pain. While perioperative systemic dexamethasone is used for its anti-inflammatory and opioid-sparing effects, its efficacy is inconsistent, and concerns regarding systemic side effects persist. Dexamethasone palmitate, a novel lipophilic prodrug formulated as nanoparticle emulsion, leverages the enhanced permeability and retention effect to target inflammatory sites selectively, potentially offering superior anti-inflammatory and analgesic efficacy with reduced systemic exposure. This trial aims to evaluate whether preoperative intravenous dexamethasone palmitate is more effective than conventional dexamethasone in preventing moderate-to-severe postoperative pain.

Participants needed: 446
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Beijing Tiantan HospitalUpdated: Aug 19, 2026Locations: 1
Eligibility criteria

Age 18-65 years. [+2]

Known hypersensitivity to dexamethasone or its excipients. [+7]

Status: Recruiting

Effect of Tegileridine on Postoperative Bowel Function Recovery in Abdominal Surgery

Title: Effect of Tegileridine on Postoperative Bowel Function Recovery in Abdominal Surgery: A Multicenter, Randomized, Controlled Trial The goal of this clinical trial is to evaluate the effectiveness and safety of tegileridine, a biased μ-opioid receptor agonist, for patient-controlled intravenous analgesia (PCIA) after abdominal surgery. The main question it aims to answer is: Is tegileridine superior to morphine in promoting the recovery of gastrointestinal function within 72 hours after abdominal surgery? Researchers will compare the experimental group (receiving Fumarate Tegileridine Injection) to the active control group (receiving Morphine Hydrochloride Injection). Both groups will also receive dexmedetomidine in their PCIA pumps. This comparison will determine if tegileridine is more effective for bowel recovery and has a better safety profile. Participants who are scheduled for elective abdominal surgery under general anesthesia will: 1. Be randomly assigned to receive either a tegileridine-based or a morphine-based pain relief pump after surgery. 2. Use the patient-controlled analgesia (PCA) pump for up to 72 hours postoperatively to manage their pain. 3. Be assessed for the time it takes for their bowel function to return (tolerating food and having gas or bowel movement). 4. Have their pain levels, overall recovery quality, sleep quality, and any side effects monitored during hospitalization. 5. Be followed up 30 days after surgery.

Participants needed: 152
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Xiangya Hospital of Central South UniversityUpdated: Aug 17, 2026Locations: 3
Eligibility criteria

Scheduled to undergo elective abdominal surgery under general anesthesia. [+5]

Undergoing gastrointestinal tract surgery. [+12]

Status: Recruiting

Management of Postoperative Discomfort in Young Children Following Dental Rehabilitation Under General Anesthesia

The purpose of this study is to investigate the effectiveness of various oral analgesic regimens in minimizing post-operative pain and discomfort in young children following dental rehabilitation under general anesthesia (DRGA). In this randomized controlled trial, three analgesic regimens following DRGA in Franciscan Children's Hospital will be compared using both self-report and behavioral measures. The analgesic therapies to be investigated are ibuprofen monotherapy, alternating ibuprofen and acetaminophen dual-therapy, and combined ibuprofen and acetaminophen dual-therapy. For the purposes of this study, combined therapy is defined as the simultaneous administration of acetaminophen and ibuprofen at regular intervals, whereas alternating therapy is defined as one analgesic (acetaminophen or ibuprofen) administered within a 3 hour interval of the other.

Participants needed: 75
Trial details
Phase: Phase 4Age: 4-6Biological sex: AllType: InterventionalSponsor: Boston UniversityUpdated: Aug 12, 2026Locations: 1
Eligibility criteria

American Society of Anesthesiologists (ASA) I-II [+3]

ASA III or IV [+2]

Status: Recruiting

Transverse vs. Longitudinal Serratus Anterior Plane Block in Breast Surgery

The aim of this prospective, randomized controlled trial is to compare the analgesic efficacy of transverse versus longitudinal ultrasound probe orientations during Serratus Anterior Plane (SAP) block in patients undergoing breast surgery. The study hypothesizes that the longitudinal approach (probe parallel to the ribs) may provide better craniocaudal spread of the local anesthetic, thereby resulting in lower postoperative Visual Analog Scale (VAS) scores and reduced opioid consumption compared to the standard transverse approach.

Participants needed: 70
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Ankara Etlik City HospitalUpdated: Aug 7, 2026Locations: 1
Eligibility criteria

Patients aged between 18 and 65 years [+4]

Known allergy to local anesthetics [+3]

Status: Recruiting

Comparing Efficiency of Mirogabalin and Pregabalin in Primary TKA

The goal of this RCT is to compare efficacy between mirogabalin and pregabalin in pain reducing after unilateral primary total knee arthroplasty. The main question\[s\] it aims to answer are: • Does mirogabalin have better pain reduction than pregabalin after unilateral primary total knee arthroplasty. Participants will randomized to mirogabalin or pregabalin group and will take the drug for 2 weeks after TKA. Researchers will compare to pregabalin group to see pain and functional outcomes after TKA.

Participants needed: 80
Trial details
Age: 50-85Biological sex: AllType: InterventionalSponsor: Thammasat University HospitalUpdated: Aug 7, 2026Locations: 1
Eligibility criteria

Age 50-85 years old [+2]

GFR &lt;60 [+5]

Status: Recruiting

Maternal Mindfulness: Depression and Postpartum Pain

This phase I clinical trial tests the feasibility and safety of a self-guided, mobile mindfulness-based intervention to reduce post-cesarean pain and prevent postpartum depression.

Participants needed: 75
Trial details
Age: 18-45Biological sex: FemaleType: InterventionalSponsor: University of Illinois at Urbana-ChampaignUpdated: Aug 6, 2026Locations: 1
Eligibility criteria

Women must self-identify as Latina/Latinx/Hispanic, Asian, African American, or... [+9]

Status: Recruiting

Closed-Loop Deep Brain Stimulation for Refractory Chronic Pain

Chronic pain affects 1 in 4 US adults, and many cases are resistant to almost any treatment. Deep brain stimulation (DBS) holds promise as a new option for patients suffering from treatment-resistant chronic pain, but traditional approaches target only brain regions involved in one aspect of the pain experience and provide continuous 24/7 brain stimulation which may lose effect over time. By developing new technology that targets multiple, complimentary brain regions in an adaptive fashion, the investigators will test a new therapy for chronic pain that has potential for better, more enduring analgesia.

Participants needed: 12
Trial details
Age: 22-80Biological sex: AllType: InterventionalSponsor: University of California, San FranciscoUpdated: Jul 31, 2026Locations: 1
Eligibility criteria

Age 22-80 years old [+17]

Major medical co-morbidities increasing the risk of surgery including uncontroll... [+13]

Status: Recruiting

Autonomic Neural Blockade in Bariatric Surgery

The purpose of this research is to evaluate if autonomic nerve block (ANB- blocking pain and nausea signals) decreases pain and anti-nausea medication requirements as well as the experience of pain/nausea during the first 72 hours after sleeve gastrectomy or gastric bypass surgery. Participants will be randomly assigned either to the standard of care or the ANB group before surgery. As part of standard of care, in both groups, laparoscopic bariatric surgery will be initiated with local anesthetic injected into the abdominal wall. In the ANB group, participants will be given an additional injection of local anesthetic medication to block nerves on and around the stomach.

Participants needed: 200
Trial details
Age: 18-90Biological sex: AllType: InterventionalSponsor: Endeavor HealthUpdated: Jul 29, 2026Locations: 1
Eligibility criteria

Individuals able and willing to consent and participate in all study activities [+2]

Patients taking opiates chronically [+5]