- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05609682
Effect of Gabapentin on Post-Operative Pain in Minimally Invasive Sacrocolpopexy (GPOP)
The Effect of Gabapentin on Post-Operative Pain in Minimally Invasive Sacrocolpopexy: A Randomized Controlled Pilot Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This will be a randomized controlled pilot trial to determine the effect of a standard postoperative pain protocol with scheduled gabapentin versus placebo in decreasing post-operative pain scores. An institutional review board approach will be obtained and the trial will be registered at Clinicaltrials.gov and the protocol adhered to CONSORT guidelines.
Recruitment will start in October 2022 until completion of pilot study enrollment numbers at OU Health - a single academic center. If patients meet inclusion criteria (see below), willing participants will sign a written consent on their preoperative visit.
Researchers will be recruiting 20 patients per study arm: standard ERAS protocol post-operative care with placebo vs study group given standard ERAS protocol with scheduled postoperative gabapentin for the first two weeks following surgery.
Randomization will be computer generated, using a 1:1 allocation and variable block sizes of 2 and 4. Randomization and packing with opaque bags will be performed by our institution's investigation drug pharmacy. Consents will be signed by trained research assistant(s) and randomization should be maintained throughout the duration of enrollment. Patients will receive their medications concealed within an opaque bag given by the surgical team.
The primary outcome is pain during normal activity and rest via a standardized telephone prompt using the validated surgical pain scale (SPS) on POD 3-5 and 7-10. The SPS uses a numeric range from 0 to 10 with 0 representing no pain and 10 representing the worst pain imaginable. Pain scale will be assessed and opioid consumption will be measured at POD 14-16 during their routine follow up. Patients will be asked the number remaining opiate medications left at their follow up visit.
The secondary outcomes include adverse events, characterized using the National Institute of Health Common Terminology of Criteria for Adverse Events version 5.0. Researchers also plan to collect sociodemographic data: age, parity, race, past medical, and past surgical history. Data from routinely administered validated PFDI-20 and PFIQ-7 forms will also be obtained. Surgical data including concomitant procedures, intra- and perioperative complications, estimated blood loss, length of stay, and whether or not the patient discharges home with a catheter will be noted.
Standard post-operative pain control consists of continuous acetaminophen and/or NSAIDs and as needed oral opiates (oxycodone 5-10mg) for moderate to severe pain. If the patient randomizes to the study group, they will receive 14 days of gabapentin starting on postoperative day (POD) 1. Researchers will utilize a dosing pattern that was previously used in the Wu et al. randomized control trial as it was made in consultation with a geriatric pharmacist. Dosing will include administration of gabapentin 300mg nightly for 3 nights and then be increased to 300mg twice a day for an additional 11 days - a total of 25 tablets. Funding for the study and placebo medications for this study will be provided by an internal grant by the Department of Obstetrics and Gynecology.
Patients will be asked to complete a validated Surgical Pain Scale (SPS) pre-operatively to assess baseline pain. All vaginal and abdominal incisions will be infiltrated with local anesthetic prior to incision for both groups. Both groups will be given a standard senna (8.6mg) with docusate (50mg) daily post-operative bowel regimen as previously published by Patel et al. a.
Study Type
Enrollment (Estimated)
Phase
- Early Phase 1
Contacts and Locations
Study Contact
- Name: Josephine Doo
- Phone Number: 405-271-8001
- Email: josephine-doo@ouhsc.edu
Study Contact Backup
- Name: Christy Zornes
- Phone Number: 48137 405-271-8001
- Email: christy-zornes@ouhsc.edu
Study Locations
-
-
Oklahoma
-
Oklahoma City, Oklahoma, United States, 73104
- Recruiting
- University of Oklahoma Health Sciences Center
-
Contact:
- Christy Zornes, MHR
- Phone Number: 48137 405-271-8001
- Email: christy-zornes@ouhsc.edu
-
Contact:
- Kyra Woods, BA
- Phone Number: 45750 405-271-8001
- Email: kyra-woods@ouhsc.edu
-
Principal Investigator:
- Lieschen Quiroz, MD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
• Patients have a diagnosis of uterovaginal prolapse, vaginal vault prolapse, or pelvic organ prolapse (based on International Classification of Diseases [ICD]).
Exclusion Criteria:
- Concurrent sphincter or fistula repair, urethral diverticulectomy or mesh excision
- Current gabapentin or pregabalin use
- Oxygen dependency
- Renal failure or glomerular filtration rate of < 30mL/min
- Daily narcotic usage >2 months - this is to allow us to capture an opiate-naïve patient population to better assess the impact of adjuvant gabapentin
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo Arm
Standard ERAS protocol post-operative care with placebo
|
Placebo given for two weeks after surgery
|
Active Comparator: Gabapentin Arm
Standard ERAS protocol with scheduled postoperative gabapentin
|
Scheduled gabapentin given for two weeks after surgery
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Examine the efficacy of gabapentin in changing postoperative pain scores
Time Frame: 2 weeks post-op
|
Measured using the validated surgical pain scale in which 0 (minimum value) means no pain sensation and 10 (maximum value) means most intense pain imaginable
|
2 weeks post-op
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Post-operative opioid consumption
Time Frame: 2 weeks post-op
|
Patients will be asked the number remaining opiate medications left at their follow up visit.
|
2 weeks post-op
|
Patient satisfaction
Time Frame: 2 weeks post-op
|
Patient satisfaction will be obtained using the Pelvic Floor Disability Index questionnaire in which the symptom scale ranges from 0 = not present to 4 = quite a bit in relation to symptoms and how much they bother the participant.
|
2 weeks post-op
|
Degree of somnolence
Time Frame: 2 weeks post-op
|
The Pelvic Floor Impact Questionnaire measures how symptoms affect activities, relationships and feelings, ranging from Not at all to Quite a bit.
|
2 weeks post-op
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Lieschen Quiroz, MD, University of Oklahoma
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Postoperative Complications
- Pain
- Neurologic Manifestations
- Pain, Postoperative
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Excitatory Amino Acid Antagonists
- Excitatory Amino Acid Agents
- Tranquilizing Agents
- Psychotropic Drugs
- Anti-Anxiety Agents
- Anticonvulsants
- Antimanic Agents
- Gabapentin
Other Study ID Numbers
- 15207
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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