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Lymphatic Mapping in Treating Patients With Stage I or Stage II Cancer of the Vulva

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: January 27, 2003
Last Update Posted: May 29, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Gynecologic Oncology Group

RATIONALE: Lymphatic mapping may improve the ability to detect cancer of the vulva.

PURPOSE: This phase III trial is studying how well lymphatic mapping works in treating patients with stage I or stage II cancer of the vulva.

Condition Intervention Phase
Vulvar Cancer Procedure: Sentinel lymph node mapping Phase 3

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Intraoperative Lymphatic Mapping in Patients With Stage I and II Squamous Carcinoma of the Vulva

Resource links provided by NLM:

Further study details as provided by Gynecologic Oncology Group:

Primary Outcome Measures:
  • Predictive value of negative sentinel lymph nodes in vulvar cancer patients [ Time Frame: at time of surgery ]

Enrollment: 515
Study Start Date: December 1999
Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Sentinenal lymph node mapping
Sentinenal lymph node mapping
Procedure: Sentinel lymph node mapping
Sentinel lymph node mapping

Detailed Description:


  • Determine the negative predictive value of a negative sentinel lymph node in patients with invasive squamous cell carcinoma of the vulva.
  • Determine the location of the sentinel node in these patients.

OUTLINE: Patients receive injection(s) of isosulfan blue into the dermis at the junction of the tumor and normal vulvar skin. Once the afferent lymphatic channel and sentinel node have been identified, patients undergo unilateral or bilateral inguinal-femoral lymphadenectomy followed by resection of the primary tumor with adequate margins. Preoperative lymphoscintigraphy is also performed.

Patients are followed every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter or until recurrence.

PROJECTED ACCRUAL: A total of 40-630 patients will be accrued for this study within 2-6 years.


Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No


  • Histologically confirmed invasive squamous cell carcinoma of the vulva that is greater than 1 mm in thickness as measured from the nearest rete peg

    • Tumor size must be 2-6 cm
    • No recurrent disease
  • Prior excision of the primary disease or a history of carcinoma in situ of the vulva allowed
  • No tumor extending into the urethra, anus, vagina, rectum, or bladder
  • No grossly suspicious or inflamed groin nodes on physical exam
  • No grossly infected primary tumors



  • Any age

Performance status:

  • GOG 0-3

Life expectancy:

  • Not specified


  • Not specified


  • Not specified


  • Not specified


  • No other invasive malignancy within the past 5 years except non-melanomatous skin cancer
  • No known hypersensitivity to phenylethane compounds


  • No prior cancer therapy that contraindicates therapy in this study

Biologic therapy:

  • Not specified


  • Not specified

Endocrine therapy:

  • Not specified


  • Not specified


  • See Disease Characteristics
  • No prior groin dissection
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00003325

  Show 72 Study Locations
Sponsors and Collaborators
Gynecologic Oncology Group
National Cancer Institute (NCI)
Study Chair: Charles Levenback, MD M.D. Anderson Cancer Center
  More Information

Responsible Party: Gynecologic Oncology Group
ClinicalTrials.gov Identifier: NCT00003325     History of Changes
Other Study ID Numbers: GOG-0173
CDR0000066277 ( Other Identifier: CDR )
NCI-2009-00579 ( Other Identifier: NCI )
First Submitted: November 1, 1999
First Posted: January 27, 2003
Last Update Posted: May 29, 2015
Last Verified: May 2015

Keywords provided by Gynecologic Oncology Group:
stage I vulvar cancer
stage II vulvar cancer
squamous cell carcinoma of the vulva

Additional relevant MeSH terms:
Vulvar Neoplasms
Genital Neoplasms, Female
Urogenital Neoplasms
Neoplasms by Site
Vulvar Diseases
Genital Diseases, Female