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PainNCT02264795

Does Intraperitoneal Instillation of Lidocaine at Cesarean Delivery Improve Postoperative Analgesia?

A study testing Lidocaine in people with Pain, run by Samuel Lunenfeld Research Institute, Mount Sinai Hospital at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The instillation of local anesthetic into the peritoneum has been found to be safe and effective in reducing postoperative pain and morphine consumption after abdominal surgery. A review of studies reporting serum levels of local anesthetic after intraperitoneal delivery found no cases of clinical toxicity in any of… Read more about this study

Who is it for?
Ages 18 to 50 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pain
What is being tested?
Lidocaine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
204 participants
Where
1 siteCanada
Study dates
Nov 2014to Nov 2015
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • ASA I or II patients
  • 18-50 years of age
  • Term pregnancy
  • Singleton pregnancy
  • Spinal anesthetic
  • Pfannenstiel incision
  • Patients who have given pre-operative informed written consent

Who cannot join

  • Patients who refuse or are unable to give consent
  • ASA >2
  • Multiple gestation
  • Chronic pain
  • BMI >40
  • Contraindication to acetaminophen or non-steroidal anti-inflammatory drugs

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Mount Sinai Hospital

    Toronto, Ontario, M5G1X5

Other trials in Canada

About this study

Official title: Does Intraperitoneal Instillation of Lidocaine at Cesarean Delivery Improve Postoperative Analgesia? A Randomized, Double-blind, Placebo-controlled Trial

The instillation of local anesthetic into the peritoneum has been found to be safe and effective in reducing postoperative pain and morphine consumption after abdominal surgery. A review of studies reporting serum levels of local anesthetic after intraperitoneal delivery found no cases of clinical toxicity in any of the trials. The studies in this meta-analysis did not include post-cesarean delivery pain and there is a lack of data to support the use of intraperitoneal local anesthetic after cesarean section.

The purpose of this study is to assess the efficacy of intraperitoneal lidocaine on postoperative pain scores after cesarean delivery. This study will compare a 20ml solution of lidocaine (400mg) with epinephrine 5mcg/ml versus normal saline (placebo) instilled into the peritoneum at the end of surgery in women undergoing cesarean delivery. The investigators hypothesize that intraperitoneal lidocaine will result in lower pain scores, reduce opioid consumption and opioid related side effects, and higher maternal satisfaction after cesarean delivery.

Read the detailed description

Postoperative pain after cesarean delivery can have a significant negative impact on the mother's ability to care for her newborn and lead to complications such as thromboembolism, chronic pain, and depression. Postoperative analgesia for cesarean delivery has undergone remarkable improvement and is currently based on a multimodal approach to improve pain control and reduce the systemic complications of opiates. Despite this some patients still experience moderate to severe pain after cesarean delivery, and further strategies to improve analgesia and postoperative recovery are warranted.

The use of intraperitoneal local anesthetics to reduce postoperative pain has been studied in a variety of surgical settings, such as hysterectomy, laparoscopic cholecystectomy and minor laparoscopic gynecological procedures. These studies have compared different local anesthetics and the timing of local anesthetic delivery in relation to surgery, for example pre-procedure, at the end of surgery or via continuous catheter infusion. Intraperitoneal lidocaine at the end of surgery was associated with lower postoperative pain scores after total abdominal hysterectomy (200mg lidocaine) and laparoscopic cholecystectomy (400mg lidocaine). There is a large growing body of evidence to support the use of intraperitoneal local anesthetic to reduce postoperative pain. However, there is a lack of data to support its use in postcesarean delivery pain. The investigators found one study reporting a decreased incidence of postoperative pain following intraperitoneal lidocaine instillation at the end of cesarean delivery, in which the parietal peritoneum had been sutured.

The purpose of this study is to evaluate the efficacy of intraperitoneal lidocaine 400mg instillation at the end of cesarean delivery on maternal pain scores and satisfaction, in the context of a multimodal analgesic regimen inclusive of intrathecal opioids and systemic NSAIDs, acetaminophen and opioids. The investigators hypothesize that intraperitoneal lidocaine will decrease VAS pain scores, reduce opioid consumption and opioid related side effects, and increase maternal satisfaction after cesarean delivery.

Conditions
Pain
Being tested
Lidocaine, Placebo
Keywords
Cesarean section, Lidocaine
Medical subject headings
Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LidocaineDrug

    Also called Lidocaine HCl

    Lidocaine 2% with epinephrine 5mcg/ml

  • PlaceboDrug

    Also called Normal saline

    0.9% Sodium Chloride Solution

Study groups in NCT02264795
Study groupRoleWhat they receive
PlaceboPlacebo comparatorIntraperitoneal instillation of normal saline.
Receives: Drug: Placebo
LidocaineActive comparatorIntraperitoneal instillation lidocaine 2% (400mg) with epinephrine 5mcg/ml.
Receives: Drug: Lidocaine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain Score (VAS) 24hr movement

    VAS score (VAS 0-100 mm) for maternal pain on movement at 24 hours postcesarean delivery

    Measured: 24 hours

Secondary outcomes (15)
  1. Anxiety score before surgery (VAS)

    Maternal anxiety score before surgery

    Measured: 5 minutes

  2. Pain score (VAS) 2hr rest

    VAS score (VAS 0-100 mm) for maternal pain at rest at 2 hours postcesarean

    Measured: 2 hours

  3. Pain score (VAS) 2hr movement

    VAS score (VAS 0-100 mm) for maternal pain on movement at 2 hours postcesarean

    Measured: 2 hours

  4. Pain Score (VAS) 24hr rest

    VAS score (VAS 0-100 mm) for maternal pain at rest at 24 hours postcesarean

    Measured: 24 hours

  5. Pain Score (VAS) 48hr rest

    VAS score (VAS 0-100 mm) for maternal pain at rest at 48 hours postcesarean

    Measured: 48 hours

  6. Pain Score (VAS) 48hr movement

    VAS score (VAS 0-100 mm) for maternal pain on movement at 48 hours postcesarean

    Measured: 48 hours

  7. Patient satisfaction 2hr

    Patient satisfaction at 2 hours postcesarean

    Measured: 2 hours

  8. Patient satisfaction 24hr

    Patient satisfaction at 24 hours postcesarean

    Measured: 24 hours

  9. Patient satisfaction 48hr

    Patient satisfaction at 48 hours postcesarean

    Measured: 48 hours

  10. Opiate consumption PACU

    Opiate consumption on discharge from PACU

    Measured: 2 hours

  11. Opiate consumption 24hrs

    Opiate consumption within 24 hours postcesarean

    Measured: 24 hours

  12. Opiate consumption 48hrs

    Opiate consumption within 48 hours postcesarean

    Measured: 48 hours

  13. Side Effect scores

    Nausea, vomiting and pruritis scores on discharge from PACU, at 24 hours and 48 hours postcesarean

    Measured: 48 hours

  14. Bowel function

    Return of bowel function as assessed by passing flatus

    Measured: 48 hours

  15. Time to request for first opiate

    Hours to request for first opiate (if any) postcesarean

    Measured: 48 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Oct 2014 (estimated)
  2. Study startNov 2014
  3. Primary completionNov 2015
  4. Study completionNov 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
204 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02264795
Sponsor's protocol ID
14-04
Status last verified
May 2016
First submitted
9 Oct 2014
Last updated
3 May 2016
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Lidocaine in people with Pain, run by Samuel Lunenfeld Research Institute, Mount Sinai Hospital at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 May 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain Score (VAS) 24hr movement (time frame: 24 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 May 2016.

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