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Opioid Free AnesthesiaNCT04390698

Opioid Free Anesthesia in Breast Cancer Surgery

A study testing paravertebral block, opioid free anesthesia and opioid general anesthesia in people with Opioid Free Anesthesia, run by Peking University People's Hospital at 1 site in China.

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

A comparison of incidences of postoperative nausea and vomiting (PONV) , postoperative pain severity and recovery parameters in breast cancer patients receiving opioid or opioid-free general anesthesia. Read more about this study

Who is it for?
Ages 20 to 75 years, women only
Conditions the study is for
Opioid Free Anesthesia
What is being tested?
paravertebral block, opioid free anesthesia and opioid general anesthesia
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteChina
Study dates
1 Jul 2020to 15 Mar 2022
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 20 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • first diagnosis of histologically confirmed primary breast cancer without known extension beyond the breast and axillary nodes;
  • ASA physical statue I-II;

Who cannot join

  • chronic pain and opioid administration history;
  • allergy to local anesthetics or NSAIDs;
  • coagulation disorders;
  • local infection at regional block site;
  • unable to comply to study protocol schedule for logistic or other reasons;
  • refusal to participate to the study;
  • breast reconstruction with implants or latissimus dorsi flap

Trial locations and contacts

1 site in 1 country.

China1 site
  • Peking University People's Hospital

    Beijing, Beijing Municipality, 100044

Other trials in China

About this study

Official title: Opioid Free Anesthesia in Breast Cancer Surgery: a Prospective Randomized Study

A comparison of incidences of postoperative nausea and vomiting (PONV) , postoperative pain severity and recovery parameters in breast cancer patients receiving opioid or opioid-free general anesthesia.

Read the detailed description

Breast cancer is one of the most common oncologic diagnosis in women. Surgery is traditionally performed under general anesthesia with opioid-based analgesia. It is associated with higher incidences of PONV, more severe acute postoperative pain and increased incidences of chronic pain. The possibility of higher risk of metastasis has also been reported.

The purpose of our study is to compare the opioid-free general anesthesia with the opioid-based general anesthesia with respect to the quality of recovery, postoperative pain and cancer recurrence and metastasis.

Being tested
paravertebral block, opioid free anesthesia, sham block, opioid general anesthesia

What participants receive

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

  • paravertebral blockProcedure or surgery

    Also called nerve block

    Paravertebral block will be performed at T2,T4 level on the surgical side using out-of-plane approach under ultrasound-guided, with 0.4% ropivacaine 20ml at each injection site.

  • opioid free anesthesiaDrug

    Also called opioid free

    propofol, lidocine and muscle relaxant will be used for induction, after laryngeal mask airway insertion, general anesthesia will be maintained.

  • sham blockProcedure or surgery

    Also called local infiltration

    Local infiltration at the same site of paravertebral block will be performed, with 1% lidocaine 3ml on each injection site.

  • opioid general anesthesiaProcedure or surgery

    Also called traditional general aneshesia

    propofol, sufentanil and muscle relaxant will be used for induction, after laryngeal mask airway insertion, general anesthesia will be maintained .

Study groups in NCT04390698
Study groupRoleWhat they receive
nerve block+opioid-free general anesthesiaExperimentalParavertebral block with an ultrasound-guided technique; opioid-free general anesthesia
Receives: Procedure: paravertebral block; Drug: opioid free anesthesia
sham bock+opioid general anesthesiaSham comparatorSham block by local infiltration at the same site of paravertebral block; opioid based general aneshesia
Receives: Procedure: sham block; Procedure: opioid general anesthesia

What is being measured

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

  1. quality of recovery

    15-item 15-item 15-item quality of recovery questionnaire

    Measured: 24 hours after surgery

Secondary outcomes (3)
  1. health related quality of life

    evaluated using EuroQol 5 dimensions questionnaire

    Measured: up to 3 months after surgery

  2. postoperative pain

    Numeric Rating Scale pain scores, pain questionnaires

    Measured: up to 3 months after surgery

  3. cancer recurrence and metastasis

    diagnosed by breast cancer specialist

    Measured: up to 12 months after surgery

Timeline

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

  1. First posted15 May 2020
  2. Study start1 Jul 2020
  3. Primary completion15 Mar 2021
  4. Study completion15 Mar 2022

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
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04390698
Sponsor's protocol ID
OFA
Status last verified
Mar 2022
First submitted
8 May 2020
Last updated
5 Apr 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Tripathy S, Rath S, Agrawal S, Rao PB, Panda A, Mishra TS, Nayak S. Opioid-free anesthesia for breast cancer surgery: An observational study. J Anaesthesiol Clin Pharmacol. 2018 Jan-Mar;34(1):35-40. doi: 10.4103/joacp.JOACP_143_17.

    PubMed 29643620
  • Zhang Q, Wu Y, An H, Feng Y. Postoperative recovery after breast cancer surgery: A randomised controlled trial of opioid-based versus opioid-free anaesthesia with thoracic paravertebral block. Eur J Anaesthesiol. 2023 Aug 1;40(8):552-559. doi: 10.1097/EJA.0000000000001856. Epub 2023 May 23.

    PubMed 37218631

Questions about this trial

What is this clinical trial studying?

A study testing paravertebral block, opioid free anesthesia and opioid general anesthesia in people with Opioid Free Anesthesia, run by Peking University People's Hospital at 1 site in China.

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 2 inclusion and 7 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 Apr 2022. 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 China. 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?

quality of recovery (time frame: 24 hours after surgery). 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 NCT04390698, which also lists 2 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 Apr 2022.

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