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Colonic CancerNCT01339273

Transversus Abdominis Plane (TAP) Block for Postoperative Analgesia After Laparoscopic Colonic Resection

A study testing Ultrasound guided Transversus Abdominis Plane (TAP) bock and Local anaesthetic infiltration of laparoscopic port sites in people with Colonic Cancer and Rectal Cancer, run by Oxford University Hospitals NHS Trust at 1 site in United Kingdom.

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

Laparoscopic (key-hole) large bowel resection is a minimally invasive procedure when compared to open large bowel resection, but is still associated with a significant amount of pain and discomfort. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Ultrasound guided Transversus Abdominis Plane (TAP) bock and Local anaesthetic infiltration of laparoscopic port sites
Could I receive a placebo?
No, everyone receives an active treatment
How many people
72 participants
Where
1 siteUnited Kingdom
Study dates
Sep 2011to Dec 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participant is willing and able to give informed consent for participation in the study.
  • Male or Female, aged 18 years or above.
  • Undergoing elective laparoscopic high anterior resection without stoma or laparoscopic right hemicolectomy.
  • American Society of Anaesthetists physical status (ASA) 1-3

Who cannot join

  • Opioid tolerance
  • Chronic abdominal pain
  • Allergy/Intolerance: Morphine, local anaesthetics
  • BMI>35 Kg/M2
  • Previous major abdominal surgery
  • High likelihood of conversion to open procedure
  • Patients unable to communicate in written and spoken English
  • Weight less than 50 kg

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • The Churchill Hospital, Oxford Radcliffe Hospitals NHS trust

    Oxford, Oxfordshire, OX3 9DU

Other trials in United Kingdom

About this study

Official title: Ultrasound Guided Transversus Abdominis Plane (TAP) Block for Postoperative Analgesia After Laparoscopic Colonic Resection- a Double Blind Randomised Controlled Trial

Laparoscopic (key-hole) large bowel resection is a minimally invasive procedure when compared to open large bowel resection, but is still associated with a significant amount of pain and discomfort. Analgesia is commonly provided by a multi-modal technique involving varying combinations of paracetamol, Non steroidal anti-inflammatory drugs (NSAIDs), regional analgesia and oral or parenteral opioids. While epidural analgesia is considered the gold standard for open colo-rectal procedures it can be associated with significant complications and may delay hospital discharge in laparoscopic procedures. Opioids are associated with an increased incidence of nausea, vomiting and sedation and reduced bowel motility which can also prolong recovery.

Transversus Abdominis Plane (TAP) block is a technique which numbs the nerves carrying pain sensation from the abdominal wall and provides effective and safe analgesia with minimal systemic side effects. Their perceived benefits are thought to relate to reduced opioid consumption and therefore reduced opioid side effects. The investigators believe ultrasound guided TAP blocks will reduce pain and morphine consumption with a resultant improved patient satisfaction, earlier return of bowel function and earlier hospital discharge.

The key research question the investigators are trying to answer is whether TAP block provide better pain relief than local anaesthetic infiltration of the laparoscopic port sites. Both techniques are currently being used in our hospital and a retrospective audit demonstrated better analgesia and lower consumption of morphine in the TAP block group.The differences were not statistically significant as the number patients in the audit were not large enough.The investigators are hoping that this study will demonstrate that the difference is real by recruiting the necessary number of patients into each group (36 per group)

Read the detailed description

Summary of Study Design The study will be a double blind randomised controlled trial with patients undergoing laparoscopic right hemicolectomy or laparoscopic high anterior resection randomly allocated into two groups, with the study group receiving bilateral TAP blocks followed by a morphine PCA and the control group receiving local anaesthetic infiltration of the laparoscopic port sites and specimen extraction site and a morphine PCA.

A double blind design was chosen to eliminate patient and observer bias in reporting of pain scores.

The presence of the control arm will ensure that any difference observed will be due to the effect of sensory nerve block due to the TAP block than due to the systemic effect of the injected local anaesthetic.

The null hypothesis will be that there is no difference between the groups in the amount of morphine consumed by the patients during 48 hours after the operation. We chose this measurement as an objective but indirect measurement of efficacy of TAP block and pain relief thus received. Measurement of pain with various scoring methods are reliable only when concurrent reduction in consumption of pain killers are demonstrated.

Recruitment and randomisation:

All patients meeting the inclusion criteria will receive a patient information leaflet and an invitation letter to participate in the study during the pre-assessment visit. We aim to recruit 72 patients (36 patients per group).

Informed consent will be taken by one of the investigators on the morning of the surgery, if the exclusion criteria are not applicable. Patients will be allotted consecutive participant numbers starting from one. Patients will be randomly allocated into either the study group and a control group. Randomisation will occur by using computer generated random numbers. Group allocation will be kept in a consecutively numbered, opaque, sealed envelope in the controlled drugs cupboard in theatre-6 anaesthetic room of Churchill hospital.Once patient has consented, the anaesthetist will open the corresponding numbered envelope and perform bilateral TAP blocks after induction of general anaesthesia, if the patient is in the study group the surgeons will infiltrate the port sites with local anaesthetic at the end of the procedure if the patient is in the control group.

Blinding:

The study group will receive bilateral TAP blocks with 20mls 0.25% bupivacaine on each side and the skin punctures on either sides will be covered with a small plaster. Patients in the control group will receive subcutaneous infiltration of the laparoscopic port sites and specimen extraction site with equivalent amount bupivacaine at the end of the procedure and small plasters will be stuck on either flanks approximately where the skin punctures for TAP block will be made.

The assessor of pain scores and morphine doses (Recovery nurse \& Colo-rectal house officer) and the patient will be blinded to group allocation.

Patient: Plasters will be stuck on flanks of all the patients both study and control group so that patient will not know if they have received TAP block.

Recovery nurse: During handover to recovery the anaesthetist and scrub nurse will not mention about group allocation.

Colo-rectal house officer: The house officers( Junior Doctors) who will be following up in the ward will not present in the operating theatre, so they will be blinded

The study duration will be from induction of anaesthesia until the patients are medically fit for discharge from hospital. No extra visits other than routinely required for the surgical procedure is expected.

Being tested
Ultrasound guided Transversus Abdominis Plane (TAP) bock, Local anaesthetic infiltration of laparoscopic port sites
Keywords
TAP block, Laparoscopic hemicolectomy, Laparoscopic anterior resection, laparoscopic colonic resection
Medical subject headings
Colonic Neoplasms, Rectal Neoplasms, Diverticulum, Colon, Colitis, Ulcerative

What participants receive

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

  • Ultrasound guided Transversus Abdominis Plane (TAP) bockProcedure or surgery

    Ultrasound guided TAP bock with Bupivacaine 0.25% 20ml per side or to a maximum 1mg/kg per side and the skin puncture will be covered with a small plaster

  • Local anaesthetic infiltration of laparoscopic port sitesProcedure or surgery

    Laparoscopic port sites and specimen extraction site will be infiltrated with a total of 40 mls 0.25% bupivacaine subcutaneously at the end of the procedure in the control group and plasters will be stuck on either side approximately where a skin puncture for tap block would be made.

Study groups in NCT01339273
Study groupRoleWhat they receive
TAP blockExperimentalPatients in this arm will receive ultrasound guided TAP bock with Bupivacaine 0.25% 20ml per side or to a maximum 1mg/kg per side and the skin puncture will be covered with a small plaster
Receives: Procedure: Ultrasound guided Transversus Abdominis Plane (TAP) bock
Local anaesthetic infiltrationActive comparatorLaparoscopic port sites and specimen extraction site will be infiltrated with a total of 40 mls 0.25% bupivacaine subcutaneously at the end of the procedure in the control group and plasters will be stuck on either side approximately where a skin puncture for tap block would be made.
Receives: Procedure: Local anaesthetic infiltration of laparoscopic port sites

What is being measured

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

  1. Morphine Consumption in the First 48hours After the Operation

    Total morphine consumption in the first 48 hours after the surgery will be calculated from the drug chart and the Patient controlled analgesia(PCA)pump.

    Measured: 48 hours after the operation

Secondary outcomes (13)
  1. Numerical Rating Pain Scores at 48 Hours Postoperatively

    Numerical Rating Scores for Pain (0-10) 0= no pain 10= severe pain

    Measured: 48 hours after the operation

  2. Nausea Score at 48 Hours Postoperatively

    0-10 0= no nausea 10=severe nausea

    Measured: 48 hours after the operation

  3. Time to First Request for Rescue Analgesia

    The time will be calculated from the drug chart looking up when the first dose of rescue morphine was administered

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  4. Time to Mobilisation

    Time will be calculated from the nursing notes and patient diary, when the patient was first mobilised.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  5. Time to Successful Intake of Fluids

    Time will be calculated from the nursing notes and patient diary, when the patient had first successful intake of oral fluids.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  6. Time to Resumption of Normal Diet

    Time will be calculated from the nursing notes and patient diary, when the patient resumed normal diet.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  7. Time to First Bowel Motion

    Time will be calculated from the nursing notes and patient diary, when the patient had the first bowel motion.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  8. Time to First Flatus

    Time will be calculated from the nursing notes and patient diary, when the patient first passed flatus.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  9. Time to Medically Fit to Discharge

    Time will be calculated from the medical notes, when the decision that the patient is medically fit to be discharged was made.

    Measured: After the operation patients will be followed up till they are medically fit to be discharged from the hospital an expected average of 5-7 days.

  10. Total Morphine Consumption at 24hours

    Measured: 24 hours

  11. Nausea at 24hours Post Operatively

    Measured: 24 hours

  12. Time to Mobilization

    Measured: days

  13. Time to Hospital Discharge

    Measured: days

Timeline

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

  1. First posted20 Apr 2011 (estimated)
  2. Study startSep 2011
  3. Primary completionDec 2013
  4. Study completionDec 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
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01339273
Sponsor's protocol ID
Sponsorship review number:113
Status last verified
Jan 2020
First submitted
18 Apr 2011
Last updated
5 Feb 2020
Data monitoring committee
No

Publications

  • Zafar N, Davies R, Greenslade GL, Dixon AR. The evolution of analgesia in an 'accelerated' recovery programme for resectional laparoscopic colorectal surgery with anastomosis. Colorectal Dis. 2010 Feb;12(2):119-24. doi: 10.1111/j.1463-1318.2009.01768.x. Epub 2009 Jan 16.

    PubMed 19207712
  • McDonnell JG, O'Donnell B, Curley G, Heffernan A, Power C, Laffey JG. The analgesic efficacy of transversus abdominis plane block after abdominal surgery: a prospective randomized controlled trial. Anesth Analg. 2007 Jan;104(1):193-7. doi: 10.1213/01.ane.0000250223.49963.0f.

    PubMed 17179269
  • McDonnell JG, O'Donnell BD, Farrell T, Gough N, Tuite D, Power C, Laffey JG. Transversus abdominis plane block: a cadaveric and radiological evaluation. Reg Anesth Pain Med. 2007 Sep-Oct;32(5):399-404. doi: 10.1016/j.rapm.2007.03.011.

    PubMed 17961838
  • El-Dawlatly AA, Turkistani A, Kettner SC, Machata AM, Delvi MB, Thallaj A, Kapral S, Marhofer P. Ultrasound-guided transversus abdominis plane block: description of a new technique and comparison with conventional systemic analgesia during laparoscopic cholecystectomy. Br J Anaesth. 2009 Jun;102(6):763-7. doi: 10.1093/bja/aep067. Epub 2009 Apr 17.

    PubMed 19376789

Questions about this trial

What is this clinical trial studying?

A study testing Ultrasound guided Transversus Abdominis Plane (TAP) bock and Local anaesthetic infiltration of laparoscopic port sites in people with Colonic Cancer and Rectal Cancer, run by Oxford University Hospitals NHS Trust at 1 site in United Kingdom.

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 4 inclusion and 8 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 5 Feb 2020. 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 United Kingdom. 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. 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?

Yes. Results are posted in the registry (first posted 5 Feb 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Morphine Consumption in the First 48hours After the Operation (time frame: 48 hours after the operation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01339273, which also lists 4 linked publications.

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 5 Feb 2020.

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