Lymphatic Mapping Of Oropharyngeal Cancer

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity College, London

About this trial

A multi-centre validation study to evaluate whether a new imaging and surgical protocol would work as well as the current gold standard in identifying sentinel nodes in patients with oropharyngeal cancer.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Adults aged 18 or over

New diagnosis of OPC - all anatomical subsites and HPV status accepted

Unilateral metastatic nodes equating to AJCC TNM8 clinical staging N1-N2b for P16 negative and N1 for P16 positive patients.

Disqualifiers

Suspicious bilateral nodes on imaging

Previous radiotherapy or surgery to the neck

Second primary oropharyngeal tumours

Distant metastasis (e.g. lung, bone)

Trial design

Design model

Parallel

Treatments tested in this trial

  • Imaging procedure

    Procedure/Surgery

    During routine examination under anaesthetic 4 x peritumoural injection of investigator's choice of 99mTc-human albumin colloidal particles or Lymphoseek (lymphatic mapping tracer) followed by freehand SPECT scan

  • Surgical procedure

    Procedure/Surgery

    Excision of contralateral nodes identified on imaging \*(fhSPECT or SPECT/CT\*) during routine examination under anaesthetic. Serial sectioning of excised (sentinel) nodes to identify micrometastasis.

Treatment groups

150 Participants
are divided into 2 treatment groups
Group A: Imaging PhaseExperimental treatment 1 intervention
Group B: Surgical PhaseExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Rate of contralateral drainage

Rate of contralateral drainage

Time frame
24 hours post injection
2

Accuracy of detection of contralateral nodes by lymphoscintigraphy using fhSPECT compared to SPECT/CT

Accuracy of detection of contralateral nodes by lymphoscintigraphy using fhSPECT compared to SPECT/CT

Time frame
24 hours post injection
3

Number of contralateral nodes on SPECT/CT

Number of contralateral nodes on SPECT/CT will be used as the denominator in calculating the sensitivity of fhSPECT in independently verified images

Time frame
24 hours post injection
4

Number and location of contralateral nodes seen with lymphoscintigraphy performed by i) single injection ii) four peritumoural injections (standard practice) as assessed by paired SPECT/CT scans.

Number and location of contralateral nodes seen with lymphoscintigraphy performed by i) single injection ii) four peritumoural injections (standard practice) as assessed by paired SPECT/CT scans.

Time frame
24 hours post injection

Secondary outcomes

Other outcomes

Sponsors and contacts

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University College, London

Lead sponsor

National Institute for Health Research, United Kingdom

Collaborator