Positronic Emission Tomography (PET) Imaging in Post Radiation Evaluation of Head and Neck Tumours (PET PREVENT Trial)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

400 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-05-31

Study Completion Date

2011-05-31

Brief Summary

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The purpose of this trial is to determine the ability of positron emission tomography (PET) to detect residual cancer in neck lymph nodes of patients following curative treatment with radiation therapy for squamous cell cancer arising in the head and neck.

Patients with head and neck cancer (HNC) undergo treatment of curative intent; patients who are node positive (N2 N3 stages) undergo standard management which includes post-radiation planned neck dissection but two thirds of patients end up not having evidence of residual disease in neck dissection specimens; these patients could have avoided surgery. However, currently used standard tests, like computed tomography (CT) and/or magnetic resonance imaging (MRI) cannot reliably predict who is post-radiation disease free.

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Detailed Description

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PET-Fluorodeoxyglucose scanning is an imaging test based on the increased uptake of radiolabelled glucose by tumour cells. PET might detect neck tumours better than other imaging tests. This is a cohort study in which patients with N2 N3 squamous cell carcinoma of the head and neck undergo a PET and a CT scan at baseline and then post-radiation therapy and chemotherapy. Then, they undergo neck dissection surgery. The PET and CT results are compared with the presence or absence of tumours in the neck nodes. If PET is sufficiently accurate in predicting the presence or absence of tumours in the neck nodes, then a neck dissection could be avoided.

Conditions

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Cancer of the Head and Neck

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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PET

All patients receive PET scan and conventional CT imaging.

Group Type OTHER

PET scan in addition to conventional CT imaging

Intervention Type OTHER

PET scans, Pre and post radiation treatment

Interventions

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PET scan in addition to conventional CT imaging

PET scans, Pre and post radiation treatment

Intervention Type OTHER

Other Intervention Names

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FDG PET

Eligibility Criteria

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Inclusion Criteria

All of the following criteria must be satisfied:

1. Histological evidence of squamous cell carcinoma of the head \& neck (T1-T4 arising in either the oral cavity, larynx \& pharynx, except Nasopharyngeal carcinoma);OR patients with histological evidence of squamous cell carcinoma metastatic to the neck and an unknown primary site after conventional workup without any of the following: i). Clinically suspected skin primary or previous diagnosis of skin cancer arising in the head and neck area; ii). Patients of Asian or African decent -possible nasopharynx primary; iii). Patients whose malignant adenopathy is confined to zone V -possible nasopharynx primary; and iv). Patients whose malignant adenopathy is confined to zone IV (supraclavicular)-possible lung primary.
2. Presence of advanced N2 or N3 neck disease.
3. Planned for primary curative radiation therapy (± chemotherapy) followed by neck dissection eight to twelve weeks after completion of treatment.

Exclusion Criteria

1. Presence of distant metastasis
2. Recurrent tumour
3. Prior neo-adjuvant chemotherapy
4. Previous radiation therapy to intended treatment volumes
5. Other active malignancy
6. Surgically inoperable neck disease
7. Unable to remain supine for 60 minutes
8. Unfit to undergo general anesthetic or neck dissection for medical reasons
9. Known hypersensitivity to CT contrast
10. Pregnancy

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No