Clinical Research Directory

Tramadol Versus Morphine for Postoperative Pain Relief Following Laparoscopic Abdominal Surgery

Tramadol is commonly used postoperatively due to its ease of administration, but it carries several risks, including interindividual variability, drug interactions, neuropsychiatric risks in elderly patients, and long-term dependence. Although its analgesic efficacy is comparable to that of strong opioids, its role in a multimodal analgesia strategy remains insufficiently studied. Research tailored to current clinical practices is needed to accurately assess its tolerance profile.

Cohort 2 (Abdominoplasty) of: A Multi-surgery Assessment of ZYNRELEF (HTX-011)

Cohort 2 (subjects undergoing abdominoplasty) of a Phase 4, randomized, blinded, active-controlled, multicohort study to evaluate HTX-011 compared with bupivacaine HCl in subjects undergoing different surgical procedures See also the separate record for the master study protocol (NCT05109312).

Cohort 1 (TSA) of: A Multi-surgery Assessment of ZYNRELEF (HTX-011)

Cohort 1 (subjects undergoing total shoulder arthroplasty, TSA) of a Phase 4, randomized, blinded, active-controlled, multicohort study to evaluate HTX-011 compared with bupivacaine HCl in subjects undergoing different surgical procedures. See also the separate record for the master study protocol (NCT05109312).

Suzetrigine in TKA

Total knee replacements are among the most common and painful orthopedic procedures performed worldwide, often requiring intensive analgesia to support early ambulation and recovery. Despite widespread use of multimodal regimens, many patients still rely on opioids, which can cause sedation, nausea, constipation, and long-term dependency. Evaluating suzetrigine in this high-need population may improve recovery trajectories, reduce opioid consumption, and support enhanced recovery protocols. Given the growing surgical volume and the emphasis on opioid-sparing strategies, rigorous investigation of suzetrigine's efficacy in total knee replacement is of high clinical value. In this confirmatory (phase III) trial, patients undergoing primary total knee replacement will be randomized to receive either suzetrigine or placebo for 2 weeks (14 days), with the loading dose administered prior to surgery. The primary outcome is cumulative 48-hour opioid consumption in oral morphine equivalents starting from entry into the post-anesthesia care unit (PACU).

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.

Assessing Suzetrigine for Pain Reduction Following Ureteroscopic Surgery

Urologic surgery has advanced with new technologies to allow less invasive management of common afflictions such as kidney stones, these procedures are notoriously painful as the ureter must be dilated to accommodate any instruments, and a ureteral stent is often left following surgery to allow for adequate healing. Unfortunately, stents are poorly tolerated by a significant number of patients, with up to 100% complaining of bothersome pain and 10% of patients with unplanned healthcare visits. Further complicating kidney stone management is the frequency of concurrent chronic kidney disease (CKD) or acute kidney injury (AKI) that prohibits many patients from taking NSAIDs which limits pain management options. There is now a push to treat these patients with multimodal analgesia to provide better care and reduce opioid use. Suzetrigine is a new a first-in-class selective inhibitor of the NaV1.8 sodium channel that functions as a non-opioid analgesic developed to treat acute pain and neuropathic pain. This study assesses the addition of suzetrigine to standard-of-care multimodal analgesia. We hypothesize a demonstrated decrease in opioid use, decrease Emergency Room visits within 30 days, decrease the number of unplanned care encounters.

Comparison of the Efficacy of Ultrasound-guided Supra-inguinal Fascia Iliaca and Lumbar Erector Spina Plan Block in Hip Fractures

The aim of our study was to evaluate the efficacy and patient satisfaction level of SI-FIB and lumbar ESPB for positioning and postoperative analgesia during spinal anesthesia in patients undergoing hip fracture surgery.

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.

PAravertebral CaTheter Versus Epidural Analgesia in Totally Minimally Invasive Esophagectomies

Esophageal cancer ranks as the seventh leading cause of cancer globally, with 604,100 new cases, and the sixth leading cause of cancer-related deaths worldwide. When applicable, surgery is the gold standard treatment for resectable oesophageal-esophagogastric junction cancer. The surgical technique requires both an abdominal approach and a transthoracic approach to resect the esophagus, perform the anastomosis, and allow optimal lymph node removal. Surgery Historically, esophagectomy was performed entirely through open surgery. This procedure was complex, associated with significant morbidity and mortality, as well as intense acute and chronic postoperative pain. In this context, thoracic epidural analgesia (TEA) is the gold standard in the management of acute postoperative pain. It allows for opioid sparing and reduces postoperative pulmonary complications. In order to reduce postoperative pain, facilitate postoperative recovery and limit postoperative complications, particularly respiratory complications, the minimally invasive approach has been proposed for several surgical indications. This principle has led to the development of hybrid esophagectomy, i.e. an abdominal approach by laparoscopy and a thoracic approach by right thoracotomy. An abdominal laparoscopic approach during esophagectomy, even in combination with a right thoracotomy, would therefore limit postoperative complications compared to open surgery. In parallel to the wider use of hybrid esophagectomy, some teams have demonstrated the feasibility of a totally minimally invasive esophagectomy (TMIE), first video-assisted, then robot-assisted. The rise of minimally invasive surgery (both hybrid and totally minimally invasive) has led to a decrease in postoperative pain compared to open surgery. Enhanced recovery after surgery protocols have been developed to improve postoperative recovery and management of acute postoperative pain. In this context, thoracic epidural analgesia TEA may prove counterproductive by inducing arterial hypotension requiring vasopressor drugs, acute urinary retention, and limiting mobilization. Moreover, thoracic epidural analgesia TEA failure occurs in 30% of cases. In minimally invasive surgery, it may be inadequate in half of the patients. Paravertebral block (PVB) appears as a satisfactory alternative for postoperative analgesia management. In this sense, PVB is recommended for pain management in thoracoscopic lung. Evidence of the effectiveness and interest of the paravertebral catheter is lacking regarding totally minimally invasive esophageal surgery as most studies demonstrating the benefit of Paravertebral block PVB in esophageal surgery were retrospective.

Magnesium Sulfate in Children Undergoing Laparoscopic Appendectomy

Magnesium sulfate is one of the most commonly used co-analgetics. Its antinociceptive effect is related to antagonizing NMDA (N-methyl-D-aspartate) receptors of the nervous system, has an anti-inflammatory effect by reducing the concentration of IL-6 (interleukin 6) and tumor necrosis factor alpha. In adult patients, the need for morphine in the perioperative period is reduced when magnesium infusion is used. In current guidelines for treatment of acute pain in children, magnesium sulfate may be considered as a co-analgetic. However, the strength of such a recommendation is low due to the lack of reliable scientific research confirming the effectiveness of magnesium infusion in the pediatric population. The aim of this study is to evaluate the efficacy of intravenous magnesium sulfate infusion on the opioid consumption, the circulatory, metabolic and hormonal response to intubation and surgical trauma during anesthesia for laparoscopic appendectomy in children.

Suzetrigine in Total Hip Arthroplasty

Total hip and knee joint replacements are among the most common and painful orthopedic procedures performed worldwide, often requiring intensive analgesia to support early ambulation and recovery. Despite widespread use of multimodal regimens, many patients still rely on opioids, which can cause sedation, nausea, constipation, and long-term dependency. Evaluating Suzetrigine in this high-need population may improve recovery trajectories, reduce opioid consumption, and support enhanced recovery protocols. Given the growing surgical volume and the emphasis on opioid-sparing strategies, rigorous investigation of Suzetrigine's efficacy in joint replacement is of high clinical value. In this study, patients undergoing primary total hip replacement will be randomized to receive either Suzetrigine or placebo for seven days, with the loading dose administered prior to surgery. The primary outcome is cumulative 48-hour opioid consumption in oral morphine equivalents starting from entry into the post-anesthesia care unit (PACU).

Comparison of the Rhomboid Intercostal Block and Serratus Posterior Superior Intercostal Plane Block

Video-assisted thoracic surgery (VATS) is widely performed for the management of various thoracic pathologies and is generally associated with reduced surgical trauma compared with open thoracotomy. Nevertheless, patients may still experience considerable postoperative pain, which can adversely affect respiratory function, mobilization, and recovery. Various regional analgesic techniques have been incorporated into multimodal pain management strategies for VATS, including thoracic paravertebral block (TPVB), erector spinae plane block (ESPB), intercostal nerve block, serratus anterior plane block (SAPB), rhomboid intercostal block (RIB), and serratus posterior superior intercostal plane block (SPSIPB). Among these approaches, ultrasound-guided TPVB has traditionally been regarded as a reference regional analgesic technique. More recently, interfascial plane blocks have gained increasing attention because of their technical simplicity and favorable safety profile. RIB and SPSIPB are two novel interfascial plane blocks that may provide effective postoperative analgesia following thoracic surgery. The present study aims to compare the analgesic efficacy of RIB and SPSIPB in patients undergoing VATS and to evaluate their impact on postoperative pain outcomes.

Robotic Opioid-free Prostatectomy Enhanced Strategy (ROPES)

This prospective, interventional, open-label, phase 3 randomized study evaluates a multimodal analgesia discharge pathway to reduce automatic opioid prescribing following routine robotic-assisted laparoscopic prostatectomy (RALP). Patients are counseled on post-operative pain management and then may opt into or out of the study with randomization to discharge prescriptions including (A) multimodal plan with additional automatic opioid prescription or (B) multimodal plan alone and instruction to call phone line to request opioid prescription if pain management is insufficient. Additionally, a cohort of historical controls prior to implementation of the study is also prospectively assessed as a pre-study baseline. The primary outcome is postoperative opioid consumption. Secondary outcomes include bowel function recovery, unplanned care encounters including emergency department visits or postoperative phone calls, and same-day discharge rates.

Continous Infusion of Nefopam for Patients Undergoing Pancreatoduodenectomy

The goal of this clinical trial is to determine whether continuous nefopam administration, as part of a multimodal analgesia strategy, reduces opioid consumption and improves patient satisfaction after pancreatoduodenectomy. The main questions are: Does nefopam administration reduce opioid consumption after pancreatoduodenectomy? Does nefopam administration reduce postoperative pain levels after pancreatoduodenectomy? Researchers will compare two other analgesic strategies, namely continuous lidocaine infusion and epidural analgesia, to assess whether they lead to better outcomes. Participants will complete the QoR-15 questionnaire and report their pain levels at predefined time points before and after surgery.

Efficacy and Safety of Cocktail of Ropivacaine for Local Infiltration Analgesia in Patients Undergoing Laparoscopic Cholecystectomy

The goal of this clinical trial is to learn if the use of cocktail of ropivacaine,sodium bicarbonate and dexamethasone for incision local infiltration analgesia in patients undergoing ambulatory laparoscopic cholecystectomy is safe and effective. The main questions it aims to answer are: Does the cocktail lower the The incidence of moderate to severe pain during movement stages within six hours after surgery. Researchers will compare the cocktail to ropivacaine for incision local infiltration analgesia to see if the cocktail works to moderate the postoperative pain of ambulatory laparoscopic cholecystectomy patients. Participants will: Receive the cocktail or ropivacaine for incision local infiltration analgesia at the end of the surgery. Answer the questions about postsurgical pain at rest or during motion(using a Numeric Rating Scale (NRS) of 0 to 10. Pain measurements were performed at 2, 6, 12, 24 hours,3,7,30 days and 3 months postoperatively.

Effects of Minimal-Flow Sevoflurane and Multimodal Analgesia in Head and Neck Cancer Surgery

This study evaluates the anesthetic-sparing and renal protection effects of minimal-flow sevoflurane anesthesia combined with multimodal analgesia using dexmedetomidine, ketamine, and lidocaine in head and neck cancer patients undergoing free flap microvascular surgery. The 2x2 factorial randomized controlled trial aims to compare sevoflurane usage and renal function changes with different fresh gas flow rates and multimodal analgesia.