Melanoma Clinical Trial
Use of Serial Plasma NGS as a New Efficacy Metric to Guide Immunotherapy Treatment Discontinuation
Summary
The goal of this prospective study to investigate the use of circulating tumor DNA (ctDNA) to guide end of therapy decisions in patients with melanoma or non-small-cell lung cancer.
The main question it aims to answer is:
• Do patients with metastatic melanoma or non-small-cell lung cancer, who have received at least 12 months of immune checkpoint inhibition (monotherapy or in combination) with evidence of disease response/control on imaging and have no evidence of circulating tumor DNA, have an increased 12-month disease free survival in comparison to historical controls?
Full Description
This is a prospective study using Simon's two stage design to investigate the use of ctDNA to guide end of therapy decisions. Approximately 39 patients with an established diagnosis of metastatic melanoma or NSCLC with evidence of disease control (SD, PR, or CR) will be enrolled in the study.
Patients that sign a pre-screening consent will have archival tumor tissue sent to Foundation Medicine for generation of the F1CDx. Patients may begin screening after 10 months of an ICI containing regimen with plan to complete at least 1 year of systemic therapy. After successful generation of F1CDx whole blood will be collected and analyzed for plasma ctDNA measurement.
Eligible patients for enrollment are ctDNA negative and have received at least 12 months but no more than 18moths of ICI. Eligible patients will be offered to consent to the main study and have standard of care imaging as well as blood draws for ctDNA assessment at screening, 1 month, 2 month, 3 months, 6 months, 9 months, and 12 month/end of study.
Eligibility Criteria
Inclusion Criteria:
Adult patients age > 18) with unresectable, metastatic melanoma (cutaneous, acral, mucosal) or NSCLC who have evidence of disease control after at least 12 months of ICI based therapy (pembrolizumab, nivolumab, nivolumab-relatimab, ipilimumab/nivolumab, atezolizumab, ipilimumab, durvalumab, cemiplimab) with or without chemotherapy in the case of NSCLC. Any line of therapy is permitted with the exception of adjuvant therapy
Participants must be actively receiving standard of care ICI-based therapy (ICI monotherapy or in combination)
At time of enrollment patients must have received at least 12months (+/- 4 weeks) from the start of anti-PD-1 therapy and have not experienced a toxicity that prevented them from continuing therapy.
Participants must have evidence of disease control (stable disease, partial response, or complete response) that is maintained on restaging CT scans or PET CT scans obtained at 12 months (+/- 4 weeks) from the start of initial ICI therapy
Prior radiation to any site is allowed
Available tumor tissue (archival) for baseline tissue testing with FoundationOne CDx or previous FoundationOne CDx testing results (within 2 years and prior test results must be after June 30, 2021)
Life expectancy of greater than 3 months
Participants with a prior malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment are eligible for this trial.
Ability to understand and the willingness to sign a written informed consent document.
Exclusion Criteria:
Participants with clinical or radiographic evidence of progressive disease in the 3 months prior to consideration of screening and enrollment
Participants who are receiving an investigational agent (s)
Participants who have had ICI discontinued due an immune-related adverse event.
Patients with a history of an irAE but resumed ICI therapy and are receiving ICI at the time of screening are eligible to enroll.
Participants on > 10mg of oral prednisone or its equivalent for treatment of ongoing immune-related toxicity.
Participants who have not recovered from adverse events due to prior anti-cancer therapy (i.e., have residual toxicities > Grade 1) with the exception of alopecia, endocrine toxicity requiring chronic supplementation
Participants with a concurrent, active malignancy
Participants in whom F1CDx generation fails
Participants without available tumor tissue for F1CDx test result or prior F1CDx
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