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FDG-PET in Advanced Melanoma

FDG-PET/CT as a Biomarker for Treatment Response in Advanced Melanoma

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02236546
Enrollment
3
Registered
2014-09-10
Start date
2012-05-31
Completion date
2015-11-30
Last updated
2017-04-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Recurrent Melanoma, Stage IIIA Melanoma, Stage IIIB Melanoma, Stage IIIC Melanoma, Stage IV Melanoma

Keywords

fluorodeoxyglucose, FDG, PET/CT, melanoma, imaging biomarkers, cancer imaging

Brief summary

This clinical trial studies how well FDG-PET/CT measures early response in patients with stage III-IV melanoma who are receiving chemotherapy. Positron emission tomography (PET)/computed tomography (CT) uses a metabolic imaging radiotracer, \[18F\]fluorodeoxyglucose (FDG), which selectively accumulates in tumors. FDG-PET/CT of advanced melanoma before, during, and after treatment may improve methods for predicting which patients may benefit from therapy.

Detailed description

PRIMARY OBJECTIVES: I. To correlate treatment-induced changes in FDG uptake with changes in tumor size and progression-free survival (PFS) in patients receiving therapy for advanced melanoma. II. To correlate treatment-induced changes in FDG uptake with changes in the activity and/or expression of available molecular biomarkers from patients receiving therapy for advanced melanoma. OUTLINE: Patients undergo FDG-PET/CT up to 2 weeks prior to first dose of therapy, after completion of the first treatment course (day 21), and after completion of the fourth treatment course (day 84).

Interventions

FDG is administered intravenously approximately 60 minutes prior to the start of PET image acquisition.

OTHERMolecular assays on biopsied tissue

Correlative studies

DEVICEpositron emission tomography

Undergo FDG-PET/CT

DEVICEcomputed tomography

CT that is part of FDG-PET/CT is a low-milliampere, low-resolution scan that is used for anatomic localization and attenuation correction for PET images.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Vanderbilt-Ingram Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects must have signed Institutional Review Board (IRB)-approved informed consent documentation * Subjects must be diagnosed with histologically proven stage IV (metastatic) melanoma or stage III with bulky disease which may or may not be amenable for surgery and are receiving therapy at present * Subjects must be scheduled to begin treatment through the Vanderbilt-Ingram Cancer Center (VICC) Melanoma Program; this will include patients receiving standard-of-care chemotherapy, targeted therapy, and/or immunotherapy, as well as patients accrued to VICC clinical trials for the study of investigational agents * Subjects must have measurable disease by CT or magnetic resonance imaging (MRI) per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 criteria; to comply with PET Response Criteria in Solid Tumors (PERCIST) criteria, subjects should have at least one lesion measuring at least 2 cm in the longest diameter

Exclusion criteria

* Subjects who are pregnant or nursing; urine pregnancy test/or serum human chorionic gonadotropin (HCG) will be performed on women of child bearing potential * Subjects who have experienced allergic or other adverse reactions in response to intravenous injection of fluorinated radiotracers and other contrast media used in PET/CT * Subjects incapable of giving informed written consent, for the following reasons: * Inability to adhere to the experimental protocols for any reason * Inability to communicate with the research team * Limited ability to give informed consent due to mental disability, altered mental status, confusion, or psychiatric disorders * Prisoners or other individuals deemed to be susceptible to coercion

Design outcomes

Primary

MeasureTime frameDescription
Percent Change in the Sum of the Longest Dimension of Target Lesions, Defined by RECISTBaseline to the completion of 6 courses of treatmentThe primary imaging metric is percent change in average FDG standardized uptake value (SUV) among the same target lesions between baseline and images acquired after completion of cycle 1. The relationship between tumor SUV change and size change will be assessed using standard linear regression.

Secondary

MeasureTime frameDescription
Objective Response (OR)Day 84The ability of the percent change in average standardized FDG uptake to predict OR will be assessed using the proportional odds model.
Progression-free Survival (PFS)Time from first treatment until objective tumor progression or death for any reason, assessed up to 7 yearsCox (proportional hazards) regression will be used to assess the association between the percent change in average standardized FDG uptake and PFS.
Changes in Tumor [18F]Fluorodeoxyglucose (FDG) AccumulationBaseline to day 21The association between the changes in tumor FDG accumulation with a panel of immunohistochemical biomarkers will be assessed with the Spearman correlation statistic. 95% confidence intervals will be calculated for each variable. Paired changes in biomarker expression between biopsied (i.e., baseline) and biopsy samples will be compared using the nonparametric Wilcoxon signed rank test. Change in binary expression will be compared using McNemar's test. The Wilcoxon rank sum test (or Kruskal Wallis test for more than 2 groups) will be used to compare continuous and ordinal variables.

Countries

United States

Participant flow

Recruitment details

Participants were recruited to this trial at Vanderbilt Medical Center in Nashville, TN from November 2014 to November 2015

Pre-assignment details

Four people consented to participate in this trial, one was determined to be ineligible.

Participants by arm

ArmCount
FDG-PET/CT
Patients undergo \[18F\]fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) up to 2 weeks prior to first dose of therapy, after completion of the first treatment course (day 21), and after completion of the fourth treatment course (day 84). Molecular assays on biopsied tissue obtained from a subset of patients will also undergo molecular assays, the results from which will be correlated with FDG-PET/CT data. \[18F\]fluorodeoxyglucose: FDG is administered intravenously approximately 60 minutes prior to the start of PET image acquisition. Molecular assays on biopsied tissue: Correlative studies positron emission tomography: Undergo FDG-PET/CT computed tomography: CT that is part of FDG-PET/CT is a low-milliampere, low-resolution scan that is used for anatomic localization and attenuation correction for PET images.
3
Total3

Baseline characteristics

CharacteristicFDG-PET/CT
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
1 Participants
Age, Continuous57.66667 Years
STANDARD_DEVIATION 19.85783
Region of Enrollment
United States
3 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 3
other
Total, other adverse events
0 / 3
serious
Total, serious adverse events
0 / 3

Outcome results

Primary

Percent Change in the Sum of the Longest Dimension of Target Lesions, Defined by RECIST

The primary imaging metric is percent change in average FDG standardized uptake value (SUV) among the same target lesions between baseline and images acquired after completion of cycle 1. The relationship between tumor SUV change and size change will be assessed using standard linear regression.

Time frame: Baseline to the completion of 6 courses of treatment

Population: Due to loss of funding data were not collected

Secondary

Changes in Tumor [18F]Fluorodeoxyglucose (FDG) Accumulation

The association between the changes in tumor FDG accumulation with a panel of immunohistochemical biomarkers will be assessed with the Spearman correlation statistic. 95% confidence intervals will be calculated for each variable. Paired changes in biomarker expression between biopsied (i.e., baseline) and biopsy samples will be compared using the nonparametric Wilcoxon signed rank test. Change in binary expression will be compared using McNemar's test. The Wilcoxon rank sum test (or Kruskal Wallis test for more than 2 groups) will be used to compare continuous and ordinal variables.

Time frame: Baseline to day 21

Population: Due to loss of funding data were not collected

Secondary

Objective Response (OR)

The ability of the percent change in average standardized FDG uptake to predict OR will be assessed using the proportional odds model.

Time frame: Day 84

Population: Due to loss of funding data were not collected

Secondary

Progression-free Survival (PFS)

Cox (proportional hazards) regression will be used to assess the association between the percent change in average standardized FDG uptake and PFS.

Time frame: Time from first treatment until objective tumor progression or death for any reason, assessed up to 7 years

Population: Due to loss of funding data were not collected

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026