Germ Cell Cancer Metastatic
Conditions
Keywords
ctDNA
Brief summary
This study will evaluate the utility of ctDNA detection in patients with high-risk stage I, stage II, and stage III germ cell tumor disease to develop a tool for post-treatment cancer cell detection.
Detailed description
This is a specimen collection study where patients with high-risk stage I germ cell tumor, clinical stage II germ cell tumor, and clinical stage III germ cell tumor will be evaluated for ctDNA.
Interventions
Whole blood for ctDNA
Sponsors
Study design
Eligibility
Inclusion criteria
1. ≥ 18 years old at the time of informed consent 2. Ability to provide written informed consent and HIPAA authorization 3. Subjects must have histologically or serologically confirmed seminomatous or non seminomatous germ cell tumor. Non-seminoma includes embryonal carcinoma, choriocarcinoma, yolk sac tumor, or teratoma. Note: Cohort I is for high-risk clinical stage I disease (high risk will be defined as per enrolling investigator discretion). Cohort II is for clinical stage II. Cohort III is for clinical stage III or IS. 4. Archival tissue for germ-cell tumor diagnosis available
Exclusion criteria
1. Concurrent disease or condition that would make the subject inappropriate for study participation 2. Any serious medical disorder that would interfere with the subject's safety 3. Dementia, altered mental status, or any psychiatric condition that would prohibit the understanding or rendering of informed consent per treating physician coverage. 4. Patient is being tested for minimal residual disease with other experimental platforms
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Positive predictive value (PPV) of circulating tumor DNA in Cohort I | At screening and every 4 months up to 2 years | PPV will be calculated as the number of true positives divided by the total number of positive tests in patients with high-risk stage I germ cell tumor. |
| Positive predictive value (PPV) of circulating tumor DNA in Cohort II | At screening and every 4 months up to 2 years | PPV will be calculated as the number of true positives divided by the total number of positive tests in the node dissection patients with clinical stage II germ cell tumor. |
| Positive predictive value (PPV) of circulating tumor DNA in Cohort III | At screening and every 4 months up to 2 years | PPV will be calculated as the number of true positives divided by the total number of positive tests in the first-line chemotherapy patients with clinical stage III germ cell tumor. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Negative predictive value (NPV) of circulating tumor DNA in Cohort I | At screening and every 4 months up to 2 years | NPV will be calculated as the number of true negatives divided by the total number of negative tests in patients with high-risk stage I germ cell tumor. |
| Negative predictive value (NPV) of circulating tumor DNA in Cohort II | At screening and every 4 months up to 2 years | NPV will be calculated as the number of true negatives divided by the total number of negative tests in the node dissection patients with clinical stage II germ cell tumor. |
| Negative predictive value (NPV) of circulating tumor DNA in Cohort III | At screening and every 4 months up to 2 years | NPV will be calculated as the number of true positives divided by the total number of positive tests in the first-line chemotherapy patients with clinical stage III germ cell tumor. |
| Post-node dissection circulating tumor DNA bioassay | At screening and every 4 months up to 2 years | Means/stds of ctDNA in both the relapsed and non-relapsed patients in Cohort II. |
| Post-node dissection clearance rate of ctDNA | At screening and every 4 months up to 2 years | The clearance rate of ctDNA in the node dissection patients in Cohort II. |
Countries
United States
Contacts
Indiana University