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CompletedNCT05160493Updated Aug 1, 2024

The Effect of Esketamine Combined With Pregabalin on Chronic Postsurgical Pain in Patients After Craniotomy.

A Phase 2/3 interventional study of S-ketamine and pregabalin and Normal saline and placebo capsule in Chronic Postsurgical Pain, sponsored by Beijing Tiantan Hospital. Completed at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-08-01.

Sponsored by Beijing Tiantan Hospital · Phase 2/3, Interventional, and Treatment

Phase
Phase 2/3
Study type
Interventional
Enrollment
246
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Chronic postsurgical pain (CPSP), which is one of the most common and serious long term complication of surgery,occurs in approximately 10% of patients after a surgical procedure. Craniotomy was previously considered to have less chronic pain than other surgical procedures. Contrarily, studies have reported incidences of chronic headache varies for type of craniotomy, ranging from 23% to 34% at three months and 12% to 16% at one year after surgery. In addition,CPSP is associated with adverse events, including postoperative morbidity, increased health-care costs, significant impaired on quality of life, prolonged opioid use. Optimising perioperative pain management should reduce the incidence of CPSP; The non-opioid analgesics, such as ketamine and pregabalin, have also been used as components of multimodal anesthetic protocols. Postoperative pain scores and opioid use are significantly reduced in thoracotomy surgical patients given ketamine and pregabalin compared to control groups.however, there is currently a lack of evidence regarding which therapeutic options are most effective in reducing the incidence of chronic post-craniotomy headache. The investigators hypothesis is that sketamine combined with pregabalin reduces significantly chronic postoperative pain after craniotomy and improves patient outcome.

02

Conditions studied

  • Chronic Postsurgical Pain

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Keywords

  • Esketamine
  • Pregabalin
  • Craniotomy
  • Chronic Postsurgical Pain
03

In context

Pain, Postoperative

5,224 studies on the registry are indexed under Pain, Postoperative; 1,154 are open to participants now.

This study's enrollment of 246 is above the median of 75 across 4,457 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Beijing Tiantan Hospital is the lead sponsor of 481 studies on the registry; 287 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults, age ≥18 years, male or female
  • American Society of Anaesthesiology (ASA) status I-III
  • Patients undergoing elective craniotomy

Exclusion criteria

Exclusion Criteria:

  • Patients unable to complete scale assessment
  • Pregnant or lactating women
  • Patients with preoperative chronic pain syndrome
  • Patients with previous craniotomy history
  • Patients with a history of mental illness who are receiving medication
  • Patients with liver and kidney dysfunction
  • Patients have taken pain medication within two weeks
  • Patients with history of adverse reactions to pregabalin, ketamine and esticketamine
  • Patients with history of drug abuse;
  • BMI>35.0 kg · m - 2.
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
246 participants (actual)

Study arms

  • Experimental
    S-ketamine and pregabalin

    Drug: S-ketamine and pregabalin * Drug: Pregabalin 150mg (2hrs) pre operatively and 75mg twice daily post operatively for 7 days(POD1-7),followed by dose reduction to 75mg once daily for 7days(POD8-14) * Drug: S-ketamine infusion 0.5 mg/kg bolus after induction of anesthesia +0.12 mg/kg/h continuous intravenous infusion for 48 h

    Drug: S-ketamine and pregabalin

  • Placebo comparator
    Normal saline and placebo capsule

    Drug: Normal saline and placebo capsule * Drug: Placebo capsules :Two placebo capsules(2hrs) preoperatively and twice daily post operatively for 7days, followed by dose reduction to single capsule once daily for 7days * Drug: Normal saline• 0.9% saline bolus after induction of anesthesia +intravenous infusion for 48 hours

    Drug: Normal saline and placebo capsule

Interventions

  • DrugS-ketamine and pregabalin

    Drug pages: Esketamine · Pregabalin

    S-ketamine and pregabalin * Drug: Pregabalin • 150mg (2hrs) pre operatively and 75mg twice daily post operatively for 7 days(POD1-7),followed by dose reduction to 75mg once daily for 7days(POD8-14) * Drug: S-ketamine infusion • 0.5 mg/kg bolus after induction of anesthesia +0.12 mg/kg/h continuous intravenous infusion for 48 h

  • DrugNormal saline and placebo capsule

    Normal saline and placebo capsule

06

What researchers measure

Primary outcomes

  1. Proportion of craniotomy patients with NRS score greater than one 3 months after surgery

    Time frame: 3 months after surgery

07

Study locations

1 site
  • Beijing Tiantan Hospital, Capital Medical University
    Beijing, Beijing Municipality 100070, China
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Dec 2021 to primary completion in Dec 2023, 23 months.

Of 45 non-industry phase 2/3 interventional studies under Pain, Postoperative, half reached primary completion within 19 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 42. This study's 23 months is above that.

Counting every sponsor, half of 48 studies reached it within 19 months; a quarter within 12 and three quarters within 42.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 7, 2021
First posted
Dec 16, 2021
StartActual
Dec 20, 2021
Primary completionActual
Dec 11, 2023
CompletionActual
Jun 20, 2024
Last update
Aug 1, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 1, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05160493
Responsible party
Ruquan Han (Professor, Beijing Tiantan Hospital) — Principal investigator
First posted
Dec 16, 2021
Start date
Dec 20, 2021
Primary completion
Dec 11, 2023
Completion
Jun 20, 2024
Last update
Aug 1, 2024

Study contacts

Ruquan Han, M.D., Ph D.
study chair · Beijing Tiantan Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Esketamine · Pregabalin

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