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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06264167
Other study ID # NODE
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date March 1, 2024
Est. completion date March 31, 2028

Study information

Verified date February 2024
Source Queensland Centre for Gynaecological Cancer
Contact Sara Baniahmadi
Phone 07 3346 5073
Email s.baniahmadi@uq.edu.au
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is an open label, prospective, experimental, randomised clinical trial. The primary aim of this study is to determine whether it is feasible to randomise vulvar cancer patients into one of two treatment arms:1) surgical groin node dissection (as delivered though either a sentinel node biopsy or inguinofemoral lymph node dissection (IFL), or 2) serial high-resolution bilateral groin ultrasound surveillance and clinical examination every 2 months.


Description:

Treatment of vulvar cancer causes significant morbidity. Despite being a rare cancer, at least 2500 survivors of vulvar cancer live in Australia. Most survivors live with the detrimental, life-long impacts resulting from their cancer treatment because there are currently no alternatives to mitigate these impacts. The personal and societal burden this entails is significant. To control such cancer-associated burden is a national priority. Clinical palpation of the groin region and computed tomography (CT) scans do not reliably detect groin node involvement. Hence, current clinical guidelines recommend all women diagnosed at apparent Stage I or II have a surgical groin LND. This can be performed as a full IFL (full LND) to remove all groin nodes, or as a SNB to remove selected (one or two) nodes. SNB is less invasive, however, is appropriate only for vulvar cancers <4cm in diameter and unifocal tumours (~50% of all Stage I and II vulvar cancers). SNB is also associated with a false negative rate (10%) that increases the risk of undetected nodes. In 25% of cases (~80 Australian women per year), groin LND will reveal positive nodes (i.e., metastases), which triggers a referral for radiation treatment. If positive groin nodes are missed, and over time become enlarged, clinically palpable and attached to the overlying skin, >90% of women will die within 12 months, despite subsequent treatment. Conversely, if groin node involvement is detected early (e.g., by ultrasound) while still small, survival outcomes are excellent. Ultrasound technology is potentially as accurate as LND due to recent advances in resolution and technologies such as 2D/3D volumetric assessments and tissue flow. Furthermore, ultrasound is superior to medical resonance imaging (MRI), and to standard CT and positron emission tomography (PET) scans in capturing groin node involvement because it has a higher resolution, avoids harmful radiation and the technology is readily accessible outside of high-volume metropolitan areas. The investigators propose to reduce surgical morbidity by replacing upfront groin LND for vulvar cancer patients with serial high-resolution ultrasound to detect groin metastases. Groin LND will only be necessary for the few women with ultrasound-detected metastases when they are still small. This feasibility study (NODE - groiN ultrasOunD cancer) will determine the value of randomized serial groin ultrasound examinations in stage I and II vulvar cancer patients and whether it is feasible and safe for the investigators to de-escalate the extent of vulvar cancer surgery, aiming to achieve improved outcomes for affected patients. Australian women with this rare cancer bear an unacceptably high (and potentially avoidable) treatment-related burden. This feasibility study is the first step to address this problem in a novel yet pragmatic way. The overall outcome of NODE is a novel, less invasive alternative to vulvar cancer LND associated with significantly less morbidity, without compromising survival.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 30
Est. completion date March 31, 2028
Est. primary completion date March 31, 2026
Accepts healthy volunteers No
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria: - Women, over 18 years, with histologically confirmed SCC, adenocarcinoma or melanoma of the vulva - Clinically stage I or II on medical imaging (CT scan of pelvis, abdomen, and chest), without evidence of regional or distant metastatic disease - Participant must be suitable to undergo IFL/SNB according to local clinical practice management guidelines - Signed written informed consent - Negative serum pregnancy test = 30 days of surgery in pre-menopausal women and women < 2 years after the onset of menopause - Patient lives within 40 km of a medical diagnostic imaging centre (site investigator approval required for special circumstances) Exclusion Criteria: - Women with non-invasive vulvar conditions (e.g. non-invasive non-mammary Paget's disease) - Squamous cell carcinoma (SCC) of the vulva with depth of invasion =1 mm - Clinical or medical imaging evidence of regional and/or distant metastatic disease - Serious concomitant systemic disorders incompatible with the study (at the discretion of the investigator) - Other prior malignancies <5 years before inclusion, except for successfully treated keratinocyte skin cancers, or ductal carcinoma in situ - Estimated life expectancy of =6 months

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
High-resolution bilateral groin ultrasound surveillance
Participants in the Interventional Treatment (serial ultrasounds) group will undergo surgical excision of the primary tumor, either via radical wide local excision or radical vulvectomy. Post-vulvar surgery, follow-up appointments occur bi-monthly for 12 months, involving a clinical examination and groin ultrasound. Senior imaging specialists review bilateral ultrasound scans for positive lymph nodes or suspicious findings, promptly sending reports to the primary care physician and trial manager if detected within 3 business days. Subsequently, participants consult their primary care physician for options. Depending on clinical judgment, they may be referred for LND or continue with bi-monthly ultrasounds based on preference and clinician guidance.

Locations

Country Name City State
Australia Royal Brisbane and Women's Hospital Brisbane Queensland
Australia St Andrew's War Memorial Hospital Brisbane Queensland

Sponsors (2)

Lead Sponsor Collaborator
Queensland Centre for Gynaecological Cancer Royal Brisbane and Women's Hospital

Country where clinical trial is conducted

Australia, 

Outcome

Type Measure Description Time frame Safety issue
Primary Feasibility of randomisation: The percentage of patients willing to be randomised to either surgical groin node dissection or serial high-resolution bilateral groin ultrasound surveillance in conjunction with clinical examination every 2 months. The feasibility of randomisation into (1) LND (IFL vs SNB) or (2) high-resolution bilateral groin ultrasound surveillance every 2 months will be determined through a practical sample size of n=20. Feasibility is declared if 30% of eligible patients (n=6 or more) can be randomised. 12 months
Secondary Utility of tumour mutations to determine positive lymph node metastasis. Translational research - Compare the molecular profile of tumour mutations between positive and negative lymph nodes. Study duration up to 15 years
Secondary Utility of circulating tumour DNA to determine positive lymph node metastasis. Translational research - Compare the molecular profile of circulating tumour DNA between positive and negative lymph nodes. Study duration up to 15 years
Secondary Utility of plasma to determine positive lymph node metastasis. Translational research - Compare the molecular profile of plasma between positive and negative lymph nodes. Study duration up to 15 years
Secondary Utility of serum to determine positive lymph node metastasis. Translational research - Compare the molecular profile of serum between positive and negative lymph nodes. Study duration up to 15 years
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