Analgesia Clinical Trials

This is a prospective interventional study examining the effect of ketorolac at doses of 15mg versus 30 mg for duration of analgesia in emergency department patients with suspected renal colic. Read Less

This study examines the relationship between central nervous system (CNS) mechanisms of pain inhibition and the pain relief that occurs following a lumbar medial branch block (MBB). Read Less

A randomized double-blind placebo controlled trial comparing the effect of a combined ketorolac and lidocaine paracervical block with a standard lidocaine paracervical block on procedure related pain with office hysteroscopies. Read Less

The purpose of the study is to find out how a stimulation device worn on the ear works. This device is thought to stimulate nerves in the area around the ear to change the signals in the brain. The device has been shown to reduce pain and to reduce the symptoms of withdrawal. The investigator will also investigate changes in the way each participant perceive sensations of pressure and heat. The participant will be asked to reduce the amount of pain medication that they take. Then, the participant will spend several days and nights in the Clinical Research Center at UTMB (University of Texas Medical Branch) in Galveston. During that time, the participant will be monitored for withdrawal symptoms and will receive either active (e.g., "real") brain stimulation or sham (e.g., "fake") brain stimulation for two days (four hours each day). At two times over the course of the study (before and after ear stimulation treatment), the participant will complete questionnaires about their pain score and how they are feeling, sensory testing, and will undergo magnetic resonance imaging (MRI) of their brain. The investigator will collect the following information from the participant's medical record: age, gender, medication history, medical diagnoses, recent vital signs, past doctor visits or hospital stays, and results of urine drug tests. Participation in this study will last approximately four days, and the participant will stay in the Clinical Research Center. Read Less

Subjects will be screened over the phone or in Tufts GYN clinic for participation in the study. If eligible and interested in participating, written informed consent (and assent if applicable) will be obtained. After informed consent/assent, the patient will be enrolled in the study. The patient will decide if they desire to use TENS unit during IUD insertion appointment and inform the study team. The clinic visit will proceed as normal, with additional study proceedings as follows. The study personnel will complete the 'Background Questionnaire' with the patient prior to IUD insertion. During the IUD insertion appointment, study personnel will assist in collection of the 'Study visit' data collection form. This includes recording the patient's pain score at various time points throughout the insertion procedure: * anticipated pain during IUD insertion * baseline pain prior to insertion * speculum insertion * tenaculum placement * paracervical block administration (if performed) * cervical dilation (if performed) * uterine sounding * IUD insertion * 5 minutes after IUD insertion Study personnel will also time the insertion procedure and collect additional data as outlined in the 'Study visit data collection form.' After IUD insertion, the participant will be asked to complete the 'Post-IUD Insertion Survey.' Once this survey is complete, this will conclude the study participation. Participation will last through the study visit only. As part of the standard of care, a urine pregnancy test will be obtained and confirmed negative prior to IUD insertion. Patients will receive routine pain management modalities per shared decision-making with their clinical provider which may include NSAID administration, paracervical block, and heating pad. Read Less

This study is being done to see if preoperative transversus abdominis plane (TAP) analgesia will provide similar postoperative pain control, hospital length of stay, and postoperative outcomes compared to surgeon-initiated wound infiltration with local anesthetic in participants undergoing laparotomy for gynecologic indications. Read Less

This two-visit, randomized, double-blind, sham-controlled trial, uses a novel naloxone blockade model in 136 individuals to determine whether the analgesic effects of a 30-minute transcutaneous auricular neurostimulation (tAN) intervention are mediated through a release of endogenous opioids. Analgesic effects of four various stimulation interventions will be measured (auricular vagus, auricular trigeminal, combination, or sham) while varying the type of intravenous (IV) infusion (either naloxone or saline) a participant is administered to determine whether the analgesic effects are mitigated by pharmacological opioid receptor blockade. Read Less

The goal of this study is to compare the abuse potential of low-dose equianalgesic buccal buprenorphine to a commonly used full mu opioid receptor (MOR) agonist in a highly controlled experimental setting. This is a translational study in which healthy participants are phenotyped for psychosocial and Opioid-Use-Disorder-risk-related metrics. In a within-subjects crossover design, 60 participants will receive a standard postoperative oral oxycodone dose (10 mg), placebo, and 3 different doses of buccal buprenorphine across 5 separate sessions. Quantitative Sensory Testing (QST) will be used to evaluate alterations in pain responsiveness relative to placebo across buprenorphine doses and oxycodone, and will compare abuse potential (indexed by the standard FDA drug liking metric) following equianalgesic doses of the two drugs. Read Less

Purpose of study is to evaluate the efficacy of transcutaneous electrical nerve stimulation (TENS) for post-operative pain control after a cesarean delivery compared to placebo and no TENS. Read Less