Clinical trial NCT02703259: Single Dose Preoperative Gabapentin Use in Minimally Invasive Hysterectomy for Acute Pain Management
Official title: Single Dose Preoperative Gabapentin Use in Minimally Invasive Hysterectomy for Acute Pain Management
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Pain, Postoperative
Lead sponsor: Christiana Care Health Services
Sponsor class: OTHER
First posted: 2016-03-09
Enrollment: 137
Sex: FEMALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: The purpose of the investigators' study is to assess the efficacy of a single dose of preoperative gabapentin within an enhanced recovery after surgery protocol in acute postoperative pain reduction for women undergoing a minimally invasive hysterectomy. Participants who consent to participate will be randomized to either a control group without gabapentin or to a study arm and receive gabapentin 600 mg prior to their planned surgery. The investigators will collect data on postoperative narcotic use, subjective pain as rated by a numeric pain scale, in addition to any adverse effects of single dose gabapentin use.

Detailed description: Multimodal postoperative analgesia after a hysterectomy has been mainly based on a combination of nonsteroidal anti-inflammatory drugs and opioids. However, adverse effects including nausea, vomiting, sedation, and pruritus may limit use of opioids. As the side effects are dose related, minimizing opioid exposure may significantly reduce these risks. Thus, there has been an interest in evaluating preemptive as well as post-operative administration of non-opioids. Additional regimens have been suggested to minimize opioid use and its associated adverse effects including injection of local anesthetics, epidural analgesia, and anticonvulsants, such as gabapentin or pregabalin.

Gabapentin, a widely used anticonvulsant used for treatment of neuropathic pain, has recently been suggested to improve postoperative analgesia and reduce opioid requirements. Gabapentin is thought to modulate calcium channels on the presynaptic nociceptive neurons, which in turn modulate or inhibit the release of excitatory neurotransmitters from activated nociceptors. In addition to inhibiting pain transmission, gabapentin may exert an analgesic effect by activating descending inhibitory noradrenergic pathways.

Many studies have demonstrated the safety and efficacy of gabapentin for perioperative use in a variety of procedures across disciplines including thoracotomy, laparoscopic cholecystectomy, tonsillectomy, major orthopedic surgery, cesarean sections, and abdominal hysterectomy. Several randomized trials have evaluated the effects of gabapentin administered preoperatively only as well as given pre- and postoperatively for hysterectomy. In a systematic review of 14 studies conducted between 2004 and 2013, with samples ranging from 40 to 200, investigators identified 8 trials in which gabapentin was administered only preoperatively to reduce pain associated with abdominal hysterectomy surgery. Analysis of those data clearly demonstrates that preemptive gabapentin reduced the postoperative visual analog scale (VAS) pain score by approximately 50% and postoperative use of morphine by approximately 37%. The incidence of pruritus and dry mouth in those receiving preemptive gabapentin appeared similar to those receiving placebo, however there was a higher rate of reported dizziness (not statistically significant) associated with gabapentin. In contrast, multiple postoperative doses of gabapentin in addition to the preoperative dose was found to have no significant effect on VAS scores at 24 hours, thus favoring a single preoperative dose.

Although initial results have been encouraging, uptake of gabapentin in routine clinical use remains limited due to mixed results and variability between gabapentin protocols, including dosing and duration. Christiana Care Health System (CCHS) plans to implement the Enhanced Recovery After Surgery (ERAS) protocol which administers preoperative medications to reduce postoperative pain, including acetaminophen, celecoxib, dexamethasone, and gabapentin. Therefore the aim of this study is to assess the efficacy of a single dose of preoperative gabapentin protocol to reduce acute postoperative pain in women undergoing a minimally invasive hysterectomy.

Eligibility criteria: Inclusion Criteria:

* undergoing a minimally invasive hysterectomy with surgeons operating within the Christiana Care Health System at the Newark location only.
* at least 18 years of age
* able to swallow tablets or capsules

Exclusion Criteria:

* liver failure
* renal failure
* prior gastric bypass
* gastroparesis
* recent or current regular gabapentin use
* hypersensitivity to gabapentin, acetominophen, or celecoxib
* procedure is converted to laparotomy for any indication. (Mini-laparotomy for specimen removal alone will not be excluded.)

Primary outcomes:
measure: Narcotic Use at 24 Hours Postop
timeFrame: 24 hours
measure: Subjective Pain at 24 Hours Postoperative
timeFrame: 24 hours
Secondary outcomes:
measure: Number of Patient With Gabapentin Adverse Effects at 24 Hours Postoperatively
timeFrame: 24 hours
measure: Number of Patient With Gabapentin Adverse Effects at 2 Weeks Postoperatively
timeFrame: 2 weeks
measure: Narcotic Use at 2 Weeks Postop
timeFrame: 2 weeks
measure: Subjective Pain at 2 Weeks Postop
timeFrame: 2 weeks
Other outcomes:
Locations:
city: Newark
country: United States
facility: Christiana Care Health System
state: Delaware
Study officials:
affiliation: Christiana Care Health Services
name: Terri Huynh, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Christiana Care Health Services
name: Gretchen Makai, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Alayed N, Alghanaim N, Tan X, Tulandi T. Preemptive use of gabapentin in abdominal hysterectomy: a systematic review and meta-analysis. Obstet Gynecol. 2014 Jun;123(6):1221-1229. doi: 10.1097/AOG.0000000000000289.
citation: Clarke H, Bonin RP, Orser BA, Englesakis M, Wijeysundera DN, Katz J. The prevention of chronic postsurgical pain using gabapentin and pregabalin: a combined systematic review and meta-analysis. Anesth Analg. 2012 Aug;115(2):428-42. doi: 10.1213/ANE.0b013e318249d36e. Epub 2012 Mar 13.
citation: Dolin SJ, Cashman JN. Tolerability of acute postoperative pain management: nausea, vomiting, sedation, pruritus, and urinary retention. Evidence from published data. Br J Anaesth. 2005 Nov;95(5):584-91. doi: 10.1093/bja/aei227. Epub 2005 Sep 16.
citation: Schmidt PC, Ruchelli G, Mackey SC, Carroll IR. Perioperative gabapentinoids: choice of agent, dose, timing, and effects on chronic postsurgical pain. Anesthesiology. 2013 Nov;119(5):1215-21. doi: 10.1097/ALN.0b013e3182a9a896. No abstract available.
citation: Straube S, Derry S, Moore RA, Wiffen PJ, McQuay HJ. Single dose oral gabapentin for established acute postoperative pain in adults. Cochrane Database Syst Rev. 2010 May 12;2010(5):CD008183. doi: 10.1002/14651858.CD008183.pub2.
citation: Tiippana EM, Hamunen K, Kontinen VK, Kalso E. Do surgical patients benefit from perioperative gabapentin/pregabalin? A systematic review of efficacy and safety. Anesth Analg. 2007 Jun;104(6):1545-56, table of contents. doi: 10.1213/01.ane.0000261517.27532.80.
citation: Huynh TQ, Patel NR, Goldstein ND, Makai GE. Preoperative Gabapentin for Minimally Invasive Hysterectomy: A Randomized Controlled Trial. J Minim Invasive Gynecol. 2021 Feb;28(2):237-244.e2. doi: 10.1016/j.jmig.2020.04.040. Epub 2020 May 8.