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Prostate CancerNCT03212456

Evaluation of Post-operative Biochemical Recurrence in Patients Submitted to Radical Prostatectomy Under General Opioid-free Anesthesia Compared to Conventional General Anesthesia

A study testing opioid-free group, Opioid Group and transversus abdominal plane block with ropivacaine in people with Prostate Cancer, run by Instituto do Cancer do Estado de São Paulo at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The use of opioids facilitates angiogenesis and has a proven action in the immune system, mainly in the reduction of natural killer cell activity, favoring the migration of neoplastic cells and inhibiting humoral and cellular immunity. These factors may contribute to recurrence and tumor metastasis. Read more about this study

Who is it for?
Ages 40 to 80 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
opioid-free group, Opioid Group and transversus abdominal plane block with ropivacaine
Type of treatment
Surgery or procedure
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
146 participants
Where
1 siteBrazil
Study dates
12 Jan 2017to 30 Dec 2020
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 40 to 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Prostate Cancer;
  • Intermediate to high risk of recurrence by D'Amico criteria (Gleason scale > or = 7; PSA > or = 10)

Who cannot join

  • Patient refuse;
  • atrioventricular blockade;
  • Coagulopathy;
  • Other procedure at same time.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Instituto do Cancer do Estado de Sao Paulo - Icesp

    São Paulo, São Paulo, 01246-903

Other trials in Brazil

About this study

The use of opioids facilitates angiogenesis and has a proven action in the immune system, mainly in the reduction of natural killer cell activity, favoring the migration of neoplastic cells and inhibiting humoral and cellular immunity. These factors may contribute to recurrence and tumor metastasis.

Therefore, could opioid-free anesthesia help reduce tumor recurrence? This is a prospective randomized controlled clinical trial in which patients undergoing radical prostatectomy will be evaluated by conventional means, which have moderate and high D'Amico criteria for tumor recurrence.

Read more

In the operating room, patients will be monitored, receive peripheral venoclysis and then randomized into two groups: in group I, the anesthetic induction will be done with pre oxygenation with 100% O2, propofol, cisatracurium, lidocaine and fentanyl; In group II the induction will be done with the same doses of propofol, cisatracurium, lidocaine and placebo.

In both groups maintenance of general anesthesia will be with propofol 1% target infusion controlled with model of Marsh target-controlled infusion plasma between 2.0 and 3.0 mcg / ml, ketamine, lidocaine and dexmedetomidine.

Both groups will receive blockade of the transverse plane of the ultrasound guided ultrasound, group I with placebo (saline 0.9% 20 ml on each side) and group II with ropivacaine 0.375% 20 ml on each side. And the postoperative analgesia will be based on anti-inflammatory and opioid analgesics (pca of morphine) according to the analgesic pain scale of the patients.

In the postoperative period, patients will be followed up for 2 years with serial doses of prostate specific antigen (PSA) to diagnose tumor recurrence (2 PSA measures> 0.2 ng / ml) and will be evaluated in relation to analgesia, need for analgesia of Rescue with morphine, satisfaction with the anesthetic technique, adverse effects (nausea and vomiting).

The primary objective is to evaluate tumor biochemical recurrence after radical prostatectomy in patients undergoing opioid anesthesia compared to patients anesthetized without opioids. The secondary objectives are to evaluate the quality of analgesia with the two techniques, patient satisfaction with perioperative period, quality of anesthetic recovery and adverse effects (nausea and vomiting, pruritus and drowsiness).

Thus, to answer the hypothesis raised, 146 patients will be needed (73 in each group).

Conditions
Prostate Cancer
Being tested
opioid-free group, Opioid Group, transversus abdominal plane block with ropivacaine, transversus abdominal plane block with placebo
Keywords
general anesthesia, cancer recurrence, opioids analgesics, neoplasm
Medical subject headings
Prostatic Neoplasms, Neoplasms

What participants receive

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

  • opioid-free groupDrug

    We'll study if the opioid-free anesthesia can reduce the biochemical recurrence of prostate cancer.

  • Opioid GroupDrug

    This group will receive fentanyl in the induction of anesthesia.

  • transversus abdominal plane block with ropivacaineProcedure or surgery

    The opioid-free group will receive transversus abdominal plane block with ropivacaine 0,375% 20 ml each side

  • transversus abdominal plane block with placeboProcedure or surgery

    the non-opioid free group will receive transversus abdominal plane block with physiological solution 0,9% 20 ml each side

Study groups in NCT03212456
Study groupRoleWhat they receive
Opioid-freeExperimentalThe patients of this group will receive opioid-free anesthesia
Receives: Drug: opioid-free group; Procedure: transversus abdominal plane block with ropivacaine
Non opioid-freeActive comparatorThe patients in this group will receive the same induction and maintenance drugs of the experimental group but with fentanyl 3 - 5 mcg/kg on induction and during the procedure as needed.
Receives: Drug: Opioid Group; Procedure: transversus abdominal plane block with placebo

What is being measured

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

  1. Biochemical recurrence of prostate cancer

    It's going to be measured the prostate specific antigen in 4 times after the date of the surgery( 6 months, 1 year, 1 and a half year and 2 years after the surgery) to compare elevations between the two groups.

    Measured: Up to 2 years after the date of the surgery

Secondary outcomes (5)
  1. Neutrophil-to-lymphocyte ratio

    Compare the peutrophil-to-lymphocyte ratio preoperatively and with 24 hour postoperatively between the two groups to study about inflammation.

    Measured: 24 hour postoperatively

  2. visual analogue pain score in the post-anaesthesia care unit

    Compare the pain scale between the two groups in the delivery of post-anaesthesia care unit

    Measured: Up to 2 hours postoperatively

  3. Rescue Morphine

    compare the total dosis needed for pain at delivery post-anaesthesia care unit

    Measured: Up to 2 hours postoperatively

  4. Satisfaction with anesthesia technique

    compare the satisfaction (a scale from 01 to 10) with anesthesia technique between the two groups at delivery of post-anaesthesia care unit

    Measured: Up to 2 hours postoperatively

  5. adverse outcomes

    compare the postoperative adverse outcomes (such as nausea, pruritus, somnolence) between the two groups at delivery of post-anaesthesia care unit

    Measured: Up to 2 hours postoperatively

Timeline

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

  1. First posted11 Jul 2017
  2. Study start12 Jan 2017
  3. Primary completion30 Sep 2020 (estimated)
  4. Study completion30 Dec 2020 (estimated)

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
Single blind
Who is masked
Participant
Enrolment
146 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03212456
Sponsor's protocol ID
NP 834/15
Status last verified
Jul 2020
First submitted
10 Apr 2017
Last updated
29 Jul 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: The following data will be available: which group the patient were randomized; BMI; PSA preoperatively, 6 months, 1 year, 1,5 year and 2 years; prostate volume; gleason scale; neutrophil-to-lymphocyte ratio preoperatively and postoperatively; bleeding; intraoperative hydration; amount of opioids in the intraoperative period; VAS pain scale in the PACU and morphine dosis in the PACU

Publications

  • Rangel FP, Auler JOC Jr, Carmona MJC, Cordeiro MD, Nahas WC, Coelho RF, Simoes CM. Opioids and premature biochemical recurrence of prostate cancer: a randomised prospective clinical trial. Br J Anaesth. 2021 May;126(5):931-939. doi: 10.1016/j.bja.2021.01.031. Epub 2021 Mar 10.

    PubMed 33712224

Questions about this trial

What is this clinical trial studying?

A study testing opioid-free group, Opioid Group and transversus abdominal plane block with ropivacaine in people with Prostate Cancer, run by Instituto do Cancer do Estado de São Paulo at 1 site in Brazil.

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 4 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: status not confirmed, as of the sponsor's last update on 29 Jul 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 Brazil. 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?

Results are not available in the source record.

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?

Biochemical recurrence of prostate cancer (time frame: Up to 2 years after the date of the 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 NCT03212456, which also lists 1 linked publication.

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 29 Jul 2020.

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