Comparison of PET/CT and Ultrasound in Staging of Malignant Melanoma

NCT ID: NCT04253574

Last Updated: 2020-02-05

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

Total Enrollment

258 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-09-01

Study Completion Date

2018-09-01

Brief Summary

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This is the first study which evaluates the different staging modalities 18F-2-fluoro-2-deoxy-D-glucose PET/CT (PET/CT) and diagnostic ultrasound (US) in a single patient cohort with malignant melanoma (MM). Previous analyses are ambivalent regarding the modality of choice. These analyses, however, compared separate patient cohorts for each modality.

Inclusion criteria were a primary staging or re-staging of suspected or confirmed MM with one or more PET/CT and/or one or more US. Exclusion criteria were the non-existence of a malignancy or a malignancy other than MM, alone or in combination with an MM.

The analysis includes the calculation of sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy in a per-patient (PPA), per-examination (PEA) and per-lesion analysis (PLA). This was done individually for PET/CT and US, and in PLA also for the combination of these two radiological modalities. Furthermore, US was divided into US as a whole (wUS), peripheral lymph nodes (pUS) and/or abdomen (aUS).

The principle equivalence of the two imaging modalities is set up as a null hypothesis H0 in all three analyses. As a further null hypothesis H0, the equivalence of the combined application compared to the sole applications of the two imaging modalities is asserted. The aim is the refutation of the null hypothesis H0 by significant differences in sensitivity and specificity.

Detailed Description

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Conditions

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Malignant Melanoma

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Study Groups

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Patients with malignant melanoma

258 patients (w: 112, m: 146 age: 61±16 years) met the primary inclusion criteria. They were all examined by 18F-FDG PET/CT, 176 patients additionally by US (peripheral lymph nodes (pUS) and/or abdomen (aUS)).

Imaging with 18F-FDG PET/CT and/or Ultrasound

Intervention Type DIAGNOSTIC_TEST

All patients were all examined by 18F-FDG PET/CT, 176 patients additionally by US (peripheral lymph nodes (pUS) and/or abdomen (aUS)) in the search of primary tumors or metastases of their malignant melanomas.

Interventions

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Imaging with 18F-FDG PET/CT and/or Ultrasound

All patients were all examined by 18F-FDG PET/CT, 176 patients additionally by US (peripheral lymph nodes (pUS) and/or abdomen (aUS)) in the search of primary tumors or metastases of their malignant melanomas.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* the existence of malignant melanoma (MM) as primary tumour or metastases

Exclusion Criteria

* the non-existence of a malignancy,
* a malignancy other than MM, alone or in combination with an MM
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Basel, Switzerland

OTHER

Sponsor Role collaborator

University of Basel

OTHER

Sponsor Role lead

Responsible Party

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Joachim Hohmann

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Joachim Hohmann, MD MSc

Role: PRINCIPAL_INVESTIGATOR

University of Basel

References

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Xing Y, Bronstein Y, Ross MI, Askew RL, Lee JE, Gershenwald JE, Royal R, Cormier JN. Contemporary diagnostic imaging modalities for the staging and surveillance of melanoma patients: a meta-analysis. J Natl Cancer Inst. 2011 Jan 19;103(2):129-42. doi: 10.1093/jnci/djq455. Epub 2010 Nov 16.

Reference Type BACKGROUND
PMID: 21081714 (View on PubMed)

Related Links

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https://www.iqwig.de/download/D06-01F_Abschlussbericht_PET_und_PET-CT_bei_malignem_Melanom.pdf

Independent Institute for Quality and Efficiency in Health Care (IQWiG) final report on MM staging \[German\]

Other Identifiers

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UBaselMM

Identifier Type: -

Identifier Source: org_study_id

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