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Prostate CancerPhase 2NCT03808077

The Effect of Deep Versus Moderate Muscle Relaxants in Men During and After Robotic Surgery for Prostate Cancer

A Phase 2 study testing Rocuronium 0.3mg/kg/hr and Rocuronium 1.5mg/kg/hr in people with Prostate Cancer, run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The purpose of this study is to determine if there is a difference in intra-abdominal pressure which surgeons use during surgery and post-surgery pain in men who undergo robotic prostate surgery with deep neuromuscular blockade (NMB), compared with moderate NMB. Read more about this study

Who is it for?
Ages 18 to 80 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Rocuronium 0.3mg/kg/hr and Rocuronium 1.5mg/kg/hr
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
139 participants
Where
1 siteUnited States
Study dates
14 Jan 2019to Jan 2027
Phase
Phase 2
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 to 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult patients under the age of 80
  • American Society of Anesthesiologists Physical Status 1, 2, 3.
  • Elective Robotic Prostatectomy
  • Patient undergoing surgery at Josie Robertson Surgical Center

Who cannot join

  • Age younger than 18
  • Inability to provide informed consent
  • Allergy to rocuronium, sugammadex, midazolam, propofol, fentanyl, lidocaine, mannitol (IV Acetaeminophen), IV Acetaminophen, Ketorolac, Morphine, Hydromorphone, Dexamethasone, Zofran, Benadryl, Compazine
  • Neuromuscular disease
  • Any patient with previous abdominal surgery less than or equal to 20 years prior to scheduled surgery date
  • Patients with BMI>35
Show all 11Show fewer
  • Severe renal impairment (Creatinine clearance < 30 ml/min)
  • Patient receiving Toremifene or any history of receiving Toremifene
  • Chronic pain patients
  • Patients receiving suboxone
  • Patients receiving succinylcholine

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

Other trials in United States

About this study

Official title: A Randomized Controlled Trial to Compare the Effectiveness of Deep vs. Moderate Neuromuscular Blockade in Reducing Postoperative Pain and Intra-Abdominal Insufflation Pressure During Minimally Invasive Robotic Prostatectomy

The purpose of this study is to determine if there is a difference in intra-abdominal pressure which surgeons use during surgery and post-surgery pain in men who undergo robotic prostate surgery with deep neuromuscular blockade (NMB), compared with moderate NMB.

Conditions
Prostate Cancer
Being tested
Rocuronium 0.3mg/kg/hr, Rocuronium 1.5mg/kg/hr
Keywords
prostate cancer, robotic surgery, muscle relaxants, neuromuscular blockade, 18-408, Memorial Sloan Kettering Cancer Center
Medical subject headings
Prostatic Neoplasms, Muscle Hypotonia

What participants receive

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

  • Rocuronium 0.3mg/kg/hrDrug

    The Moderate NMB group (Control ) will have rocuronium infusion titrated to moderate paralysis defined as TOF of 1-2 (infusion start rate 0.003 mg/kg/min or 0.18mg/kg/hr).

  • Rocuronium 1.5mg/kg/hrDrug

    The Deep NMB group (Intervention) will have rocuronium infusion titrated to deep paralysis defined as PTC of 1-2 (infusion start rate 0.006mg/kg/min or 0.35mg/kg/hr).

Study groups in NCT03808077
Study groupRoleWhat they receive
Interventional Group: Deep Neuromuscular BlockadeExperimentalThe Deep NMB group (Intervention) will have rocuronium infusion titrated to deep paralysis defined as PTC of 1-2 (infusion start rate 0.025mg/kg/min or 1.5mg/kg/hr).
Receives: Drug: Rocuronium 1.5mg/kg/hr
Control Group: Moderate Neuromuscular BlockadeActive comparatorThe Moderate NMB group (Control ) will have rocuronium infusion titrated to moderate paralysis defined as TOF of 1-2 (infusion start rate 0.005mg/kg/min or 0.3mg/kg/hr).
Receives: Drug: Rocuronium 0.3mg/kg/hr

What is being measured

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

  1. Mean Difference in Intra-Abdominal Pressure (IAP) When Performing Robotic Prostatectomy in Participants Under a Moderate vs Deep Neuromuscular Blockade Technique

    Measured by continuous Intra-abdominal Pressure monitor in mmHg.

    Measured: 6 hours post operation

  2. Difference in Levels of Postoperative Pain in Participants Under a Moderate vs Deep Neuromuscular Blockade Technique During Robotic Prostatectomy Using the Pain Numeric Pain Scale (NPS).

    Difference in levels of postoperative pain in participants under a moderate vs deep Neuromuscular Blockade technique during robotic prostatectomy using the pain numeric pain scale (NPS). The numeric pain scale (NPS) is a subjective measure which can be used in recovery rooms to assist in the assessment of pain. Individuals rate their pain on an eleven-point scale. The scale is composed of 0 (no pain at all) to 10 (worst imaginable pain).

    Measured: 6 hours post operation

Timeline

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

  1. First posted17 Jan 2019
  2. Study start14 Jan 2019
  3. Primary completion11 Oct 2024
  4. Study completionJan 2027 (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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
139 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03808077
Sponsor's protocol ID
18-408
Status last verified
Feb 2026
First submitted
15 Jan 2019
Last updated
9 Mar 2026
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made following one year after publication and for up to 36 months later. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Publications

  • Tanaka A, Cai T, Platten M, Tollinche LE, DeJoy SJ. Anesthetic Management and Neuromonitoring in a Patient with Very Long-Chain Acyl-Coenzyme A Dehydrogenase Deficiency Undergoing Scoliosis Surgery: A Case Report and Review of Literature. Case Rep Anesthesiol. 2024 Jan 8;2024:1050279. doi: 10.1155/2024/1050279. eCollection 2024.

    PubMed 38229914

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Rocuronium 0.3mg/kg/hr and Rocuronium 1.5mg/kg/hr in people with Prostate Cancer, run by Memorial Sloan Kettering Cancer Center at 1 site in United States.

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 11 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: under way, not looking for participants, as of the sponsor's last update on 9 Mar 2026. 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 States. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Jun 2025). 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?

Mean Difference in Intra-Abdominal Pressure (IAP) When Performing Robotic Prostatectomy in Participants Under a Moderate vs Deep Neuromuscular Blockade Technique (time frame: 6 hours post operation). The study lists 2 primary outcomes in all. 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 NCT03808077, 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 9 Mar 2026.

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