CClinicalTrials.gg
CompletedNCT02057367Updated Jul 27, 2016

Scalp Nerve Block and Opioid Consumption in Brain Surgery

A Phase 4 interventional study of Scalp block with 0.5% plain Marcaine and Scalp block with 0.9% normal saline in Brain Tumour, sponsored by Chiang Mai University. Completed at 1 site in Thailand. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-07-27.

Sponsored by Chiang Mai University · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Anterior scalp block with 0.5% plain Marcaine 20 ml. may reduce the intraoperative opioid consumption in neurosurgical patients who undergoing the supratentorial craniotomy compared to those who receive 0.9% normal saline solution (placebo).

Read the detailed description

Anterior scalp block with 0.5% plain Marcaine 20 ml. may reduce the intraoperative opioid consumption in neurosurgical patients who undergoing the supratentorial craniotomy compared to those who receive 0.9% normal saline solution (placebo).

A Prospective Randomized Double Blind Control

02

Conditions studied

  • Brain Tumour

Browse trials for

Keywords

  • supratentorial brain tumour
  • craniotomy
03

In context

Brain Neoplasms

1,960 studies on the registry are indexed under Brain Neoplasms; 515 are open to participants now.

This study's enrollment of 100 is above the median of 40 across 1,458 interventional studies indexed under Brain Neoplasms.

Browse Brain Neoplasms studies →

Lead sponsor

Chiang Mai University is the lead sponsor of 116 studies on the registry; 11 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
Yes

Inclusion criteria

  1. Patients who have supratentorial brain tumor
  2. Patients have been scheduled to undergo an elective craniotomy to remove tumor in any surgical position
  3. Patients have been general anesthetized with endotracheal intubation and control ventilation
  4. Patients who have provided consent for the participation in the research and for the use of their medical record in research

Exclusion criteria

Exclusion Criteria:

  1. Pregnant patients
  2. Patients who have a history of local anesthetic allergy and/ or anaphylaxis
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    Scalp block with 0.5% plain marcaine

    Anterior scalp block with 0.5% plain Marcaine 20 ml.

    Drug: Scalp block with 0.5% plain Marcaine

  • Placebo comparator
    Scalp block with 0.9% normal saline

    Anterior scalp block with 0.9% normal saline 20 ml.

    Drug: Scalp block with 0.9% normal saline

Interventions

  • DrugScalp block with 0.5% plain Marcaine

    Anterior scalp block will be done by using 0.5% plain Marcaine 20 ml.

    Also known as: Code 1

  • DrugScalp block with 0.9% normal saline

    Anterior scalp block will be done by using 0.9% normal saline 20 ml.

    Also known as: Code 2

06

What researchers measure

Primary outcomes

  1. Intraoperative opioid consumption

    The overall intravenous fentanyl consumption (microgram/ kilogram) during the surgery. The decision to administer fentanyl is guided by the changes of blood pressure and/ or heart rate greater than 20% from baseline level.

    Time frame: During the supratentorial craniotomy surgery

Secondary outcomes

  1. systolic blood pressure change

    The maximal systolic blood pressure within the first 5 minutes after skull pin insertion will be recorded. The systolic blood pressure change from baseline will be calculated. The unit is mmHg.

    Time frame: within 5 minutes after skull pin insertion

  2. Heart rate change

    The maximal heart rate within the first 5 minutes after skull pin insertion will be recorded. The heart rate change from baseline level will be calculated. The unit is beats per minute.

    Time frame: within 5 minutes after skull pin insertion

Other outcomes

  1. extubation

    The rate of immediate extubation before transferring to the intensive care unit (ICU) compared between patients who received 0.5% plain Marcaine and 0.9% normal saline solution.

    Time frame: end of surgery, before transferring to the intensive care unit

07

Study locations

1 site
  • Chiang Mai University
    Chiang Mai, 50200, Thailand
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 27, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02057367
Lead sponsor
Chiang Mai University
Responsible party
Pathomporn Pin on, M.D. (Department of Anesthesiology, Chiang Mai University) — Principal investigator
First posted
Feb 7, 2014
Start date
Mar 2013
Primary completion
Feb 2016
Completion
Apr 2016
Last update
Jul 27, 2016

Study contacts

Pathomporn Pin-on, M.D.
principal investigator · Chiang Mai University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2016. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion