Preoperative IV dexamethasone to reduce pain after minimally invasive lumbar fusion (MIS-TLIF)

Efficacy and Safety of Preemptive Intravenous Dexamethasone in MIS-TLIF

Phase 4 Interventional Thammasat University Hospital · NCT06367855

This trial will test whether a single intravenous dose of dexamethasone given before MIS-TLIF reduces postoperative back pain and opioid use in people aged 50–80 having 1–2 level lumbar fusion.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment60 (estimated)
Ages50 Years to 80 Years
SexAll
SponsorThammasat University Hospital Academic / other
Locations1 site (Pathum Thani, Changwat Pathum Thani)
Trial IDNCT06367855 on ClinicalTrials.gov

What this trial studies

This interventional Phase 4 trial compares a preoperative intravenous dose of dexamethasone with normal saline given before minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF). Participants are patients aged 50–80 undergoing MIS-TLIF at one or two spinal levels and who meet metabolic and medication-related eligibility criteria. Primary outcomes focus on postoperative back pain, with secondary outcomes including opioid (morphine) consumption and other recovery metrics. The design uses a preemptive single injection to test whether adding dexamethasone to standard ERAS medications can further reduce pain and shorten recovery.

Who should consider this trial

Good fit: Ideal candidates are adults 50–80 years old scheduled for 1–2 level MIS-TLIF who have not had prior spine surgery, do not have recent systemic steroid use, and have acceptable glycemic control (HbA1c below 7.5%).

Not a fit: Patients with prior spine surgery, a history of systemic steroid use, steroid allergy, or poorly controlled diabetes (HbA1c ≥ 7.5%) were excluded and are unlikely to be eligible or benefit from this protocol.

Why it matters

Potential benefit: If successful, a single preoperative IV dose of dexamethasone could reduce postoperative back pain, lower opioid requirements, and shorten hospital stay after MIS-TLIF.

How similar studies have performed: Preoperative dexamethasone has demonstrated pain and opioid-sparing benefits in a variety of surgical settings, but evidence specific to preemptive IV use in MIS-TLIF is limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age range: 50-80 years old.
* Undergoing MIS TLIF surgery at 1-2 spinal levels.

Exclusion Criteria:

* Previously undergone spine surgery.
* HbA1C greater than or equal to 7.5 mg%
* Allergic to all types of experimental medication.
* History of using systemic steroids.

Where this trial is running

Pathum Thani, Changwat Pathum Thani

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Spinal Stenosis LumbarDisc DegenerationDisc DiseaseFusion of SpineSurgery
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.