Clinical trial NCT06187922: Effect of Perioperative Oral Pregabalin in Total Knee Replacement
Official title: Effect of Perioperative Oral Pregabalin in Total Knee Replacement for Postoperative Pain
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE4
Conditions: Postoperative Pain
Keywords: Total knee replacement
Postoperative pain
Pregabalin
Adductor canal block
Dexmedetomidine
Lead sponsor: Bahrain Defence Force Hospital
Sponsor class: OTHER
First posted: 2024-01-03
Enrollment: 120
Sex: ALL
Minimum age (years): 18
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: The patients will be randomly assigned into two equal groups; Group P: Pregablain group and Group C: control group. Group P will receive oral capsule pregabalin 75mg one hour preoperatively and will continue as B.D for 72 hrs, Group C will not receive any premedication preoperatively.

Intraoperatively both groups will receive inj. Midazolam 2 mg before subarachnoid block with hyperbaric Bupivacaine 0.5% 2.5-3ml and fentanyl 15mcg in the operation theatre (OT). Both groups will also receive parecoxib 40mg IV and paracetamol 1G Intravenous (IV) as part of multimodal analgesia. Both groups will receive dexamethasone 8mg IV prophylactically. Postoperatively both groups will receive adductor canal block with bupivacaine and dexmedetomidine.
Primary purpose: TREATMENT

Brief summary: This interventional randomized control trial aim to determine efficacy and safety of Oral pregabalin in improving after surgery pain control in patients undergoing total knee replacement surgeries under regional anesthesia. We'll compare the efficacy of pregabalin between two groups, pregabalin group and control group on the basis of their opioid consumption after knee operation.

Detailed description: After obtaining approval from the institutional ethical committee and informed written consent, 120 patients fulfilling the inclusion criteria will be included in this study. The patients will be randomly assigned into two equal groups; Group P: Pregabalin group and Group C: control group. Group P will receive oral capsule pregabalin 75mg one hour preoperatively and Group C will not receive any premedication preoperatively.

Intraoperatively both groups will receive inj. Midazolam 2 mg before subarachnoid block with hyperbaric Bupivacaine 0.5% 2.5-3ml and fentanyl 15mcg in the operation theatre (OT). Both groups will also receive parecoxib 40mg IV and paracetamol 1G Intravenous (IV) as part of multimodal analgesia. Both groups will receive dexamethasone 8mg IV prophylactically.

Postoperatively both groups will receive Ultrasound guided Adductor canal saphenous Nerve block in the PACU with 0.2% Bupivacaine 20-30ml \& dexmeditomidine1.0mcg/kg. Group P will receive oral capsule pregabalin 75 mg Q12hourly from the 1st dose for next 60 hours. Group C will not receive any medication. Both groups will receive paracetamol 1G IV Q6Hourly and Rescue Analgesia will be provided with oral oxycodone 5mg TDS and Morphine PCA, in escalating manner as per patient requirement.

for 24 hrs. After 24 hours Both groups with receive tab paracetamol1 g Q4hourly, ibuprofen 400 Q8hourly along with Tab oxycodone as PRN Q8Hourly and PCA morphine.

Eligibility criteria: Inclusion Criteria:

1. Age between 18 to 85 year
2. Elective Regional anesthesia.
3. Able to follow study protocol

Exclusion Criteria:

1. ASA -IV
2. Age \<18 \& \> 85 years
3. Patients on pregabalin for chronic neuropathic pain.
4. Patient under General anesthesia
5. Patients with chronic liver failure
6. Patients with chronic renal failure on Hemodialysis
7. Patients on opioid (\>3 month)
8. Patient with complicated knee surgery

Primary outcomes:
measure: Visual Analogue Scale Score (0-10)
timeFrame: 72 hours
Secondary outcomes:
measure: Richmond Agitation Sedation Scale score {(+4) -0- (-5)}
timeFrame: 72 hours
measure: Visual Analogue Sedation score at 1st Continuous Passive Movement
timeFrame: with in 24 hours
measure: Time of 1st analgesia request
timeFrame: within 24 hours
measure: Incident of bradycardia
timeFrame: within 24hours
measure: Incident of Hypotension
timeFrame: within 24 hours
measure: Total opioid consumption
timeFrame: within 72 hours
measure: Patient satisfaction
timeFrame: within 72 hours
Other outcomes:
Locations:
city: Manama
country: Bahrain
facility: Bahrain Defence Force
Study officials:
affiliation: Bahrain Defence Forces Hospital
name: Mohammed Al Muharraqi, FRCS,FDSRCS
role: STUDY_CHAIR
References:
citation: Li JW, Ma YS, Xiao LK. Postoperative Pain Management in Total Knee Arthroplasty. Orthop Surg. 2019 Oct;11(5):755-761. doi: 10.1111/os.12535.
citation: Hah JM, Bateman BT, Ratliff J, Curtin C, Sun E. Chronic Opioid Use After Surgery: Implications for Perioperative Management in the Face of the Opioid Epidemic. Anesth Analg. 2017 Nov;125(5):1733-1740. doi: 10.1213/ANE.0000000000002458.
citation: Attal N, Cruccu G, Baron R, Haanpaa M, Hansson P, Jensen TS, Nurmikko T. EFNS guidelines on the pharmacological treatment of neuropathic pain: 2010 revision. Eur J Neurol. 2010 Sep;17(9):1113-e88. doi: 10.1111/j.1468-1331.2010.02999.x. Epub 2010 Apr 9.
citation: Ziyaeifard M, Mehrabanian MJ, Faritus SZ, Khazaei Koohpar M, Ferasatkish R, Hosseinnejad H, Mehrabanian M. Premedication with oral pregabalin for the prevention of acute postsurgical pain in coronary artery bypass surgery. Anesth Pain Med. 2015 Jan 17;5(1):e24837. doi: 10.5812/aapm.24837. eCollection 2015 Feb.
citation: Chen YK, Boden KA, Schreiber KL. The role of regional anaesthesia and multimodal analgesia in the prevention of chronic postoperative pain: a narrative review. Anaesthesia. 2021 Jan;76 Suppl 1(Suppl 1):8-17. doi: 10.1111/anae.15256.
citation: Sun Q, Liu S, Wu H, Ma H, Liu W, Fang M, Liu K, Pan Z. Dexmedetomidine as an Adjuvant to Local Anesthetics in Transversus Abdominis Plane Block: A Systematic Review and Meta-analysis. Clin J Pain. 2019 Apr;35(4):375-384. doi: 10.1097/AJP.0000000000000671.
citation: Andersen JH, Jaeger P, Grevstad U, Estrup S, Geisler A, Vilhelmsen F, Dahl JB, Laier GH, Ilfeld BM, Mathiesen O. Systemic dexmedetomidine is not as efficient as perineural dexmedetomidine in prolonging an ulnar nerve block. Reg Anesth Pain Med. 2019 Mar;44(3):333-340. doi: 10.1136/rapm-2018-100089. Epub 2019 Jan 23.