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CompletedNCT01585727NEUROSUpdated Feb 27, 2019

Intraoperative Monitoring of the Pelvic Autonomic Nerves

An interventional study of TME and TME in Rectal Cancer, sponsored by Johannes Gutenberg University Mainz. Completed at 1 site in Germany. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2019-02-27.

Sponsored by Johannes Gutenberg University Mainz · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
188
Allocation
Randomized
Ages
18 Years to 90 Years
Sex
All
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Study summary

One of the major problems of rectal cancer surgery is pelvic autonomic nerve damage, which is the main cause of urogenital dysfunction influencing postoperative quality of life. Costs for diagnostics and treatment of short and long-term urogenital dysfunction are immense. Varying degrees of urogenital dysfunction are found in up to 32% and 55% of patients with rectal cancer despite potentially nerve-sparing total mesorectal excision (TME).

The study will examine the impact of a newly developed continuous monitoring device for preservation of urogenital function in patients with TME for rectal cancer. 188 patients will be included in the prospective, randomized, single-blind, parallel group multi-centre trial including two arms (TME with and without intraoperative continuous monitoring of pelvic autonomic nerves). The primary efficacy endpoint is the change in urinary function measured by International Prostate Function Score (IPSS) 12 months after surgery. Genital functions measured as secondary endpoints. The application of the continuous intraoperative neuromonitoring device could enhance the objective intraoperative confirmation of pelvic nerve sparing surgery. The investigators hypothesis is that the use of his device minimizes the risk of postoperative urogenital dysfunction in patients with TME for rectal cancer. An enormous reduction of treatment costs is to be expected.

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Conditions studied

  • Rectal Cancer

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Keywords

  • Rectal cancer
  • total mesorectal excision
  • pelvic autonomic nerve preservation
  • neurostimulation
  • urogenital function
  • quality of life
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In context

Rectal Neoplasms

1,762 studies on the registry are indexed under Rectal Neoplasms; 517 are open to participants now.

This study's enrollment of 188 is above the median of 65 across 1,298 interventional studies indexed under Rectal Neoplasms.

Browse Rectal Neoplasms studies →

Lead sponsor

Johannes Gutenberg University Mainz is the lead sponsor of 153 studies on the registry; 20 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • informed consent
  • histologically confirmed carcinoma of the rectum (≤ 16 cm from anal verge)
  • fit for radical surgery
  • total mesorectal excision
  • age 18-80 years

Exclusion criteria

Exclusion Criteria:

  • history of operation of the urinary tract (e.g. prostatectomy)
  • pacemaker
  • emergency operation
  • multivisceral resection in the pelvis
  • partial mesorectal excision
  • eligibility for local excision (TEM, intestinal wall resection)
  • ongoing infection or sepsis
  • severe untreated physical or mental impairment
  • pregnancy or breastfeeding
  • women of childbearing potential who are not using a highly effective birth control method
  • missing preoperative data on urogenital or anorectal function
  • simultaneous participation in another clinical trial
  • previous participation in this clinical trial
  • lack of cooperation with the trial procedure
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Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
188 participants (actual)

Study arms

  • Experimental
    TME with neuromonitoring

    Total mesorectal excision with intraoperative neuromonitoring of pelvic autonomic nerves.

    Procedure: TME · Procedure: Neuromonitoring

  • Active comparator
    TME without neuromontoring

    Total mesorectal excision without intraoperative neuromonitoring of pelvic autonomic nerves.

    Procedure: TME

Interventions

  • ProcedureTME

    Total mesorectal excision

  • ProcedureTME

    Total mesorectal excision

  • ProcedureNeuromonitoring

    Intraoperative neuromonitoring of pelvic autonomic nerves.

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What researchers measure

Primary outcomes

  1. Urogenital function

    Increase of IPSS score by at least 5 points observed 12 months after surgery compared to the preoperative IPSS score per patient

    Time frame: 12 months

Secondary outcomes

  1. Sexual function (females)

    Reduction of FSFI score by at least 8 points 12 months after surgery compared to the preoperative FSFI score per patient.

    Time frame: 12 months

  2. Sexual function (males)

    Reduction of IIEF score by at least 15 points 12 months after surgery compared to the preoperative IIEF score per patient.

    Time frame: 12 months

  3. Adverse events

    Occurrence of adverse events.

    Time frame: 12 months

  4. Oncological safety

    Rates of pCRM-positive specimen (distance of tumour from circumferential resection margin (CRM) ≤ 1mm).

    Time frame: 12 months

  5. Quality of mesorectal excision

    Macroscopic assessment of the resection specimen.

    Time frame: 1 day after the surgery

  6. Fecal incontinence

    Evaluation of fecal incontinence using the Wexner-Vaizey score

    Time frame: 12 months

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Study locations

1 site
  • Department of General and Visceral Surgery, University Medical Center Mainz
    Mainz, Germany
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References and documents

Publications

  • Kauff DW, Kronfeld K, Gorbulev S, Wachtlin D, Lang H, Kneist W. Continuous intraoperative monitoring of pelvic autonomic nerves during TME to prevent urogenital and anorectal dysfunction in rectal cancer patients (NEUROS): a randomized controlled trial. BMC Cancer. 2016 May 21;16:323. doi: 10.1186/s12885-016-2348-4. PubMed 27209237 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 27, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01585727
Lead sponsor
Johannes Gutenberg University Mainz
Responsible party
Werner Kneist (Senior physician, Department of Visceral and Abdominal Surgery, Johannes Gutenberg University Mainz) — Principal investigator
First posted
Apr 26, 2012
Start date
Jun 2012
Primary completion
Jun 2018
Completion
Dec 2018
Last update
Feb 27, 2019

Study contacts

Werner Kneist, Univ.-Prof.
principal investigator · Department of Visceral and Abdominal Surgery, University Medical Center Mainz

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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