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Robotic Athermal Nerve-Sparing Radical Prostatectomy

Prospective Single-Center Randomized Study of Robotic Athermal Nerve-Sparing Radical Prostatectomy: Laparoendoscopic Single-Site Versus Standard Approach

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02079155
Enrollment
0
Registered
2014-03-05
Start date
2012-06-30
Completion date
2016-01-31
Last updated
2016-01-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stage I Prostate Cancer, Stage IIA Prostate Cancer

Brief summary

This randomized clinical trial compares a recently developed technique, called robotic laparoendoscopic single-site radical prostatectomy (R-LESS RP), to the current standard of robotic technique for prostate cancer, robot-assisted laparoscopic prostatectomy (RALP) in treating patients with newly diagnosed, locally confined prostate cancer. Both procedures are types of robotic radical prostatectomy, or the robot-assisted removal of the prostate though a small incision in the belly. In the standard approach, 4-5 small (1-2 cm) incisions are made in the lower abdomen to allow the insertion of robotic instruments. In the R-LESS technique, all instruments are inserted through a single incision. R-LESS RP is less invasive than RALP and may leave a smaller scar and cause less pain.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate pain and analgesic requirement of R-LESS RP compared to standard RALP. SECONDARY OBJECTIVES: I. Time to oral intake. II. Time to resume ambulation. III. Hospital stay, counted in whole days from the day of surgery to the day of discharge. IV. Perioperative parameters, including: operative time (defined as time elapsed from skin incision to placement of the final skin suture); estimated blood loss; additional ports; conversion to standard RALP (in R-LESS RP patients), or laparoscopic, or open surgery; length of stay. V. Intraoperative complications. VI. Postoperative complications, recorded according to the Clavien classification. VII. Body image perception, measured using the body image questionnaire (BIQ). VIII. Scar evaluation (at suture removal and at 6 month) by using a validated assessment tool, the Patient and Observer Scar Assessment Scale. IX. Health related quality of life, measured as patients' perception of functioning, disability, and well-being related to the following eight concepts: physical functioning, role limitations caused by physical health problems, bodily pain, general health, vitality, social functioning, role limitation caused by emotional problems, and mental health. X. Urinary continence, assessing the number of pads used daily. XI. Erectile Function, assessed by the International Index of Erectile Function (IIEF-5). OUTLINE: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients undergo standard RALP. ARM II: Patients undergo R-LESS RP. After completion of study treatment, patients are followed up periodically for 1 year.

Interventions

OTHERlaboratory biomarker analysis

Correlative studies

OTHERquality-of-life assessment

Ancillary studies

OTHERquestionnaire administration

Ancillary studies

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Case Comprehensive Cancer Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
35 Years to 72 Years
Healthy volunteers
No

Inclusion criteria

* Patients must have a biopsy proven newly diagnosed locally confined, stage T1a, T2a or T2b prostate cancer * Judged by the study doctor to be a suitable candidate for a radical prostatectomy * Serum prostate specific antigen equal to or less than 10 ng/mL * Gleason score equal to or less than 7 * Life expectancy greater than 10 years * Prostate size on trans-rectal ultrasound (TRUS) measurement less than 50 grams * Favorable operative risk defined as American Society of Anesthesiology Score (ASA score) =\< 3 * Ability to understand and the willingness to sign a written informed consent document or have a surrogate with the ability to understand and the willingness to sign a written informed consent

Exclusion criteria

* Patients with any prior pelvic surgery * Patients with prior history of pelvic fractures or hip replacement * Large pelvic or intra-abdominal masses * Any condition or history of illness or surgery that, in the opinion of the investigator, might confound the results of the study or pose additional risk to the patient (e.g. significant cardiovascular conditions) * Poor surgical risk (defined as American Society of Anesthesiology Score \> 3) * Active infection * Uncorrected coagulopathy * Body mass index equal to or greater than 35

Design outcomes

Primary

MeasureTime frameDescription
Mean pain score, evaluated with the visual analog pain score (VAPS)Up to 1 yearCompared using the Mann-Whitney U test as appropriate.
Mean analgesic consumption, obtained from medical charts and reported as units of parenteral morphine equivalents (mg)Up to 1 monthCompared using the Mann-Whitney U test as appropriate.

Secondary

MeasureTime frameDescription
Length of hospital stay, counted in whole days from the day of surgery to the day of dischargeUp to 3 daysCompared using the Mann-Whitney U test as appropriate.
Operative time, defined as time elapsed from skin incision to placement of the final skin sutureDay 1Compared using the Mann-Whitney U test as appropriate.
Estimated blood loss during surgeryDay 1Compared using the Mann-Whitney U test as appropriate.
Additional ports during surgeryDay 1Compared using the Mann-Whitney U test as appropriate.
Incidence of conversion to standard RALP, laparoscopic, or open surgery in R-LESS RP patientsDay 1Compared by means of Fisher's exact test.
Incidence of intraoperative complicationsDay 1Compared using the Mann-Whitney U test as appropriate.
Time to oral intakeUp to 1 yearCompared using the Mann-Whitney U test as appropriate.
Body image perception, measured using the BIQUp to 1 yearCompared using the Mann-Whitney U test as appropriate. The BIQ consists of two scales: the body image scale, which assesses attitudes to bodily appearance and consists of five questions (score 5-20), and the cosmetic scale which assesses degree of satisfaction with the appearance of the scare and consists of three questions (score 3-24).
Scar evaluation, assessed using the Patient and Observer Scar Assessment ScaleUp to 1 yearCompared using the Mann-Whitney U test as appropriate. Assessed at suture removal and at 6 months. The Patient and Observer Scar Assessment Scale consists of two scales: the observer scale and the patient scale. Both scales contain 6 items that are scored numerically. Each of the six items on both scales has a 10-step score, with 10 indicating the worst imaginable scar or sensation. The total score of both scales consists of adding the scores of each of the six items (range, 6 to 60). The lowest score, 6, reflects normal skin, whereas the highest score, 60, reflects the worst imaginable scar.
Health related quality of life, measured as patients' perception of functioning, disability, and well-beingUp to 1 yearCompared using the Mann-Whitney U test as appropriate. Patients' perception of functioning, disability, and well-being will be measured related to the following eight concepts: physical functioning, role limitations cause by physical health problems, bodily pain, general health, vitality, social functioning, role limitation caused by emotional problems, and mental health.
Urinary continence, assessed by the number of pads used dailyUp to 12 monthsCompared using the Mann-Whitney U test as appropriate. Evaluated at 1, 3, 6, and 12 months after the procedure.
Erectile function, assessed by the IIEF-5Up to 12 monthsCompared using the Mann-Whitney U test as appropriate. Evaluated once in preoperative period and at 1, 3, 6, and 12 months after the procedure.
Incidence of postoperative complications, recorded according to the Clavien classificationUp to 1 yearCompared using the Mann-Whitney U test as appropriate.
Time to resume ambulationUp to 1 yearCompared using the Mann-Whitney U test as appropriate.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026