Does lidocaine act as a painkiller during colonoscopy?

ISRCTN ISRCTN47787339
DOI https://doi.org/10.1186/ISRCTN47787339
EudraCT/CTIS number 2016-002210-46
Secondary identifying numbers NL56640.091.16
Submission date
06/02/2019
Registration date
25/02/2019
Last edited
26/08/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Colonoscopy is a commonly performed procedure to diagnose or follow up an inflammatory bowel disease (IBD) like Crohn’s disease and ulcerative colitis. For some of these patients, this can be a very painful procedure. Propofol anaesthetic in combination with a short-acting opioid painkiller i.e. alfentanil is commonly used for procedural sedation and analgesia (PSA). However, alfentanil can induce some serious adverse effects like low blood pressure, slow heart rate, and slow breathing. Administration of lidocaine during an operation has a proven beneficial effect in abdominal surgery, reducing pain after operation the need for strong opiods. We expect that intravenous lidocaine will reduce the need for alfentanil during colonoscopy.

Who can participate?
Any patient who is undergoing a colonoscopy and is willing to participate in a clinical trial.

What does the study involve?
Participants in the intervention group will receive lidocaine during the normal procedure of colonoscopy. Patients who are included in the placebo group of the study will receive placebo.

What are the possible benefits and risks of participating?
All measurement and handlings to the patients which participate in this study are part of standard care. Patients will have little extra risks due to the known low and non-toxic plasma levels with this commonly used infusing regimen of lidocaine. Monitoring of patients will ensure that any potential side effect or adverse event are noticed and treated as quickly as possible.
The benefit for the patients can be that less alfentanyl needs to be given during colonoscopy, which can lead to less negative side effects like hypotension, respiratory depression and PONV.

Where is the study run from?
Radboud Universitair Medisch Centrum, Geert Grooteplein Zuid 10, Nijmegen, 625 GA, Netherlands

When is the study starting and how long is it expected to run for?
The study will run from November 2016 to November 2018.

Who is funding the study?
Radboud Universitair Medisch Centrum, Netherlands.

Who is the main contact?
Mr. Twan Aalbers, twan.aalbers@radboudumc.nl

Contact information

Mr Twan Aalbers
Public

Radboud Universitair Medisch Centrum
Geert Grooteplein Zuid 10
huispost 717
Nijmegen
6525 GA
Netherlands

Phone +31243614406
Email twan.aalbers@radboudumc.nl

Study information

Study designSingle centre double-blinded randomized placebo-controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleDoes intravenous lidocaine reduce the need for alfentanil during colonoscopy under procedural sedation and analgesia?
Study acronymLiSA
Study objectivesWe hypothesize that intravenous lidocaine reduces the need for alfentanil during colonoscopy
Ethics approval(s)Approved 01/09/2019, Human Research Committee region Arnhem-Nijmegen (p/a Radboudumc, house post 628, P.O. box 9101, 6500 HB Nijmegen, The Netherlands; +31 24 361 3154; commissiemensgebondenonderzoek@radboudumc.nl), ref: 2016-2624
Health condition(s) or problem(s) studiedHealthcare domain: procedural sedation and analgesia (PSA)
Interventionintervention: At the start of PSA, patient will receive 1.5 mg/kg intravenous bolus, followed by a continuous infusion of 2 mg/kg/h lidocaine during the colonoscopy.
Patients who are included in the placebo group of the study will receive saline in equivalent volumes and time.
At the end of the colonoscopy subjects will be monitored until they reach an Aldrete recovery score of nine or higher and for at least 30 minutes according to the local PSA protocol. Afterward, patients will be discharged. A letter with instructions is sent to the general practitioner.
All adverse events reported spontaneously by the subject of observed by the investigator or his staff will be recorded. Serious adverse events have been reported to the accredited local ethics committee.
76 patients are randomized to either intravenous lidocaine treatment or placebo by the research unit of the anesthesiology department.
The subjects were randomized into groups that resulted in equal sample sizes. There were two treatment groups (treatment medication (A) versus placebo (B)). Treatment A and B were written on pieces of paper, equal amounts of A and B. The pieces of paper were put into an envelope and blindly selected one at a time. The first paper drawn was assigned to the first patient, the second was assigned to the second subject and so on. Two research coordinators were present during this randomization process.
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase IV
Drug / device / biological / vaccine name(s)Lidocaïne 1%
Primary outcome measureAlfentanyl dose (mcg) required to maintain a score < 4 on the Facial Pain Rating Scale (Wong baker face scale) during the procedure.
Secondary outcome measures1. Total propofol dose (mcg) required to maintain sedation level 4-5 on The Ramsey Sedation Scale during the procedure.
2. Infusion time measured in minutes from delivery to end of sedation.
3. Incidence of oxygen desaturation (defined as < 92%) measured continuously during the procedure.
4. Incidence of hypotension (defined as mean arterial pressure < 60 mmHg) measured every 5 minutes during the procedure.
5. Pain score measured using the numerical rating scale after the procedure.
6. Incidence of postprocedural nausea and vomiting measured by patient interview after the procedure.
7. Incidence of adverse effects of lidocaine (e.g. tinnitus, blurred vision or double vision, metal taste during procedure) measured by patient interview after the procedure.
Overall study start date09/06/2016
Completion date27/11/2018

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants76
Total final enrolment76
Key inclusion criteria1. Colonoscopy performed under PSA
2. Age 18-65 years
3. Inflammatory bowel disease: Crohn’s disease or ulcerative colitis
4. Informed consent
5. ASA classification 1 or 2
Key exclusion criteria1. Pregnancy
2. Emergency colonoscopy
3. Allergies for study medication
4. Rhythm disorders i.e. first, second or third degree AV block
5. Brugada syndrome
6. Cardiomyopathy
7. BMI >35
8. BMI <18
9. Obstructive sleep apnea syndrome
10. Uncontrolled hypertension
Date of first enrolment24/11/2016
Date of final enrolment13/11/2018

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Radboud Universitair Medisch Centrum
Geert Grooteplein Zuid 10
Nijmegen
6525 GA
Netherlands

Sponsor information

Radboud Universitair Medisch Centrum
Hospital/treatment centre

Geert Grooteplein Zuid 10
Nijmegen
6525 GA
Netherlands

Phone +31(0)243614406
Email twan.aalbers@radboudumc.nl
Website www.radboudumc.nl
ROR logo "ROR" https://ror.org/05wg1m734

Funders

Funder type

Hospital/treatment centre

Radboud Universitair Medisch Centrum
Private sector organisation / Universities (academic only)
Alternative name(s)
Radboudumc, Radboud University Medical Center, Radboud University Nijmegen Medical Center, RUNMC
Location
Netherlands

Results and Publications

Intention to publish date01/01/2020
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlans are to publish the findings of this study in a prominent magazine in the work field of anesthesiology or gastroenterology
IPD sharing planThe datasets generated during and the current study will be available upon request from Twan Aalbers (twan.aalbers@radboudumc.nl). Type of data: SPS datasheet. Data will become available after publication and is available until January 2034. Data will be shared in the context of scientific research. No informed consent has been given from participants. Only anonymous data is available.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Basic results 18/11/2019 29/11/2019 No No
Results article 30/07/2020 22/08/2022 Yes No
Protocol file version 4 01/10/2016 26/08/2022 No No

Additional files

ISRCTN47787339 _BasicResults_18Nov19.pdf
Uploaded 29/11/2019
36315 Protocol v4 01Oct2016.pdf

Editorial Notes

26/08/2022: Uploaded protocol (not peer-reviewed) as an additional file.
22/08/2022: Publication reference added.
29/11/2019: IPD sharing statement added. The basic results of this trial have been uploaded as an additional file.
18/11/2019: Total final enrolment number added.