~23 spots leftby Apr 2026

Local/MAC Anesthesia for Lumbar Spinal Stenosis

Recruiting in Palo Alto (17 mi)
+2 other locations
TA
Overseen byTodd Alamin, MD
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase < 1
Recruiting
Sponsor: Stanford University
Must not be taking: Morphine
Disqualifiers: Nerve retraction, Previous fusion, others
No Placebo Group

Trial Summary

What is the purpose of this trial?

Explore efficacy, complications, and other factors associated with anaesthetic choice- To evaluate the efficacy of local + MAC as an alternative anesthetic to general anesthesia and to analyze patients' outcomes and experiences.

Will I have to stop taking my current medications?

The trial information does not specify if you need to stop taking your current medications. However, if you are taking more than 100mg of morphine daily, you may not be eligible to participate.

What data supports the effectiveness of the drug for reducing pain during injection?

Research shows that adding lidocaine to propofol can significantly reduce the pain experienced during its injection, making the process more comfortable for patients.12345

Is the combination of lidocaine and propofol safe for use in humans?

Research shows that adding lidocaine to propofol can reduce the pain experienced during injection, which is a common side effect. This suggests that the combination is generally safe for use in humans, as it helps manage discomfort without introducing significant new risks.34678

How is the drug used in the trial for lumbar spinal stenosis different from other treatments?

The drug used in the trial combines lidocaine and propofol, which is unique because lidocaine helps reduce the pain associated with propofol injections. This combination is not typically used for lumbar spinal stenosis, making it a novel approach for managing pain during procedures.13459

Research Team

TA

Todd Alamin, MD

Principal Investigator

Stanford University

Eligibility Criteria

This trial is for individuals aged 40-95 with lumbar spinal stenosis needing decompression over 1-3 segments and who are suitable for general anesthesia. It excludes those unable to follow up, on high daily morphine doses, previous back fusion surgery, or allergies to eggs, soy, or propofol components.

Inclusion Criteria

Patients appropriate for general anesthesia
I have lumbar stenosis needing surgery on 1-3 spine segments.
I am between 40 and 95 years old.

Exclusion Criteria

I take 100mg or more of pain medication daily.
Patients with a known hypersensitivity to propofol or any of DIPRIVAN Injectable Emulsion components
Patients with allergies to eggs, egg products, soybeans, or soy products
See 3 more

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants undergo lumbar decompression surgery with either general anesthesia or local anesthetic with MAC

1 day
1 visit (in-person)

Follow-up

Participants are monitored for safety and effectiveness after treatment

2 years
Regular follow-up visits

Treatment Details

Interventions

  • Lidocaine Hydrochloride, Injectable (Local Anesthetic)
  • Propofol Injection (General Anesthetic)
Trial OverviewThe study compares the effectiveness of local plus MAC (Monitored Anesthesia Care) anesthesia versus general anesthesia in patients undergoing lumbar decompression surgery. It aims to assess patient outcomes and experiences with these anesthetic methods.
Participant Groups
2Treatment groups
Active Control
Group I: Monitored Anesthetic Care (MAC)/LocalActive Control1 Intervention
Patients under this group wil be undergoing limbar decompression surgery with Monitored Anesthetic care, (MAC)/Local. Local + MAC: Local anesthetic (lidocaine) injected into the site of the incision/dissection with additional IV medication (Propofol) to achieve a state in which the patient is generally aware, but relaxed.
Group II: General anesthesiaActive Control1 Intervention
Patients under this group will be undergoing lumbar decompression surgery with general anesthesia: General Anesthesia: Medically induced unconsciousness that suppresses reflexes and requires intubation (a tube inserted through the mouth and into the airway) to assist in breathing.

Lidocaine Hydrochloride, Injectable is already approved in Canada, Japan, China, Switzerland for the following indications:

🇨🇦
Approved in Canada as Lidocaine for:
  • Local anesthesia
  • Regional anesthesia
  • Postherpetic neuralgia
  • Anal itching
  • Burns
  • Gastrointestinal surgery
  • Neuropathic pain
🇯🇵
Approved in Japan as Lidocaine for:
  • Local anesthesia
  • Regional anesthesia
  • Postherpetic neuralgia
  • Anal itching
  • Burns
  • Gastrointestinal surgery
  • Neuropathic pain
🇨🇳
Approved in China as Lidocaine for:
  • Local anesthesia
  • Regional anesthesia
  • Postherpetic neuralgia
  • Anal itching
  • Burns
  • Gastrointestinal surgery
  • Neuropathic pain
🇨🇭
Approved in Switzerland as Lidocaine for:
  • Local anesthesia
  • Regional anesthesia
  • Postherpetic neuralgia
  • Anal itching
  • Burns
  • Gastrointestinal surgery
  • Neuropathic pain

Find a Clinic Near You

Who Is Running the Clinical Trial?

Stanford University

Lead Sponsor

Trials
2,527
Recruited
17,430,000+
Dr. Richard A. Miller profile image

Dr. Richard A. Miller

Stanford University

Chief Executive Officer since 2023

Stanford University, MD

Dr. Robert Schott profile image

Dr. Robert Schott

Stanford University

Chief Medical Officer since 2021

University of Michigan, MD

Findings from Research

In a study of 120 patients undergoing elective plastic surgery, the combination of lidocaine and flurbiprofen significantly reduced pain during propofol injection compared to placebo, with only 3% of patients reporting pain.
No complications were observed at the injection sites within 24 hours, indicating that the combined treatment is not only effective but also safe for patients.
Reduction of Propofol-Induced Pain through Pretreatment with Lidocaine and/or Flurbiprofen.Fujii, Y., Nakayama, M.[2018]
In a randomized, double-blind trial involving 80 patients, adding 1 ml of lignocaine (10 mg) to 19 ml of propofol significantly reduced the pain associated with propofol injection.
The study demonstrated a statistically significant decrease in both the incidence and severity of injection pain when lignocaine was included, with a P-value of less than 0.01.
The reduction of pain on injection of propofol: the effect of addition of lignocaine.Helbo-Hansen, S., Westergaard, V., Krogh, BL., et al.[2019]
In a study of 120 female patients undergoing gynaecological laparoscopy, the combination of lignocaine (20mg) and ketamine (5mg) significantly reduced the incidence of pain during propofol injection compared to lignocaine alone, with only 10% of patients reporting pain in the combination group versus 40% in the lignocaine/placebo group.
The study found no complications at the injection sites, indicating that the combined treatment is not only more effective but also safe for patients, with no adverse effects observed within the first 24 hours after anesthesia.
Efficacy of Lignocaine plus Ketamine at Different Doses in the Prevention of Pain Due to Propofol Injection.Fujii, Y., Nakayama, M.[2018]

References

Lidocaine is more efficient than the choice of propofol formulations to reduce incidence of pain on induction. [2013]
Reduction of Propofol-Induced Pain through Pretreatment with Lidocaine and/or Flurbiprofen. [2018]
The reduction of pain on injection of propofol: the effect of addition of lignocaine. [2019]
Efficacy of Lignocaine plus Ketamine at Different Doses in the Prevention of Pain Due to Propofol Injection. [2018]
Efficacy of the lidocaine/flurbiprofen axetil combination for reducing pain during the injection of propofol. [2017]
Comparison of lidocaine, metoclopramide, and flurbiprofen axetil for reducing pain on injection of propofol in Japanese adult surgical patients: a prospective, randomized, double-blind, parallel-group, placebo-controlled study. [2022]
Modulating effects of lignocaine on propofol. [2019]
Clinical therapeutic effects of lidocaine combination with flurbiprofen axetil for reducing propofol-induced pain in adults: A protocol for systematic review and meta-analysis. [2022]
Bisulfite-containing propofol: is it a cost-effective alternative to Diprivan for induction of anesthesia? [2019]