Clinical trials

This is an observational clinical trial, aiming to investigate whether the ctDNA dynamics could predict early response to ICIs in patients with advanced-stage cancer. Moreover, conventional tumor markers PD-L1, TMB and MSI are to be investigated for their combined prognostic values in ICI treatment.

This is a prospective and observational study, aiming to determine the detection rate and change of CtDNA in blood samples of cancer patients before, during and after neoadjuvant treatment. * Determine the rate of ctDNA positivity at the time before treatment, * Determine the rate of ctDNA positivity at the time during treatment, * Determine the rate of ctDNA positivity at the time after neoadjuvant therapy, whether there is a change in ctDNA expression of the study population during treatment. And aiming to investigate the relationship between ctDNA expression and MRI imaging with pCR response in neo-adjuvant therapy: * Correlation between ctDNA detection and pCR response. Determine the percentage of Positive Prediction Value - PPV, Negative Prediction Value - NPV of ctDNA, * Correlation between MRI imaging and pCR response. Determination of PPV, NPV of MRI * Combination of ctDNA detection and MRI imaging in the prognosis of pCR. Determination of PPV, NPV ratio of ctDNA combined with MRI.

This is an observational clinical trial, aiming to evaluate the efficacy of the SPOTMAS LUNG (SML) test compared to Low dose CTScan (LDCT)/None contrast CTScan (NCCT) in two distinct risk populations: * Cohort A: To demonstrate that SML is concordant with LDCT/NCCT in general population lung cancer screening, including low-risk (LRs0-1-2), intermediate-risk (LRs3), and high-risk (LRs4) groups. * Cohort B: To validate the sensitivity and specificity of SML in the high-risk group (LRs4).

The goal of this observational study is to investigate the real-world treatment landscape of patients with metastatic cancer and determine the role of ctDNA in monitoring treatment response in patients with metastatic cancer who have undergone K4Care testing

This is an observational study, aiming to investigate whether the ctDNA dynamics analyzed by the K-TrackTM assay could predict early response to Tyrosine kinase inhibitors (TKIs) in patients with advanced non-small cell lung cancer (NSCLC). 1. Determine relationship between ctDNA dynamics and clinical response to TKI, * No response/progressive disease = ctDNA levels increase from baseline * Partial response/stable disease = ctDNA levels decrease from baseline * Complete response = ctDNA clearance. 2. Compare and combine ctDNA dynamics and RECIST1.1 to predict clinical response. 3. Determine relationship between ctDNA dynamics and progression free survival, overall survival.

This is a prospective observational study with three primary objectives: Objective 1: Evaluate the detection rate and changes in circulating tumor DNA (ctDNA) levels in blood samples from colorectal cancer patients before, during, and after total neoadjuvant therapy (TNT). Determine the detection rate and change of CtDNA in blood samples of cancer patients before, during, and after TNT then assess changes in ctDNA expression within the study population during treatment. * Determine the ctDNA positivity rate before treatment. * Determine the ctDNA positivity rate during TNT. * Determine the ctDNA positivity rate after TNT and assess ctDNA level changes during treatment. Objective 2: Investigate the relationship between ctDNA expression and MRI/CT scan imaging with the pathological complete response (pCR) to neoadjuvant therapy : * Correlation between ctDNA detection and pCR/TRG/NAR score. Calculate the Positive Prediction Value - PPV, Negative Prediction Value - NPV of ctDNA, * Correlation between MRI/CT scan imaging and pCR. Calculate the PPV and NPV of MRI/CT scan * Combination of ctDNA detection and MRI/CT scan imaging to predict pCR. Calculate the PPV and NPV of the combined markers. Objective 3: Evaluate the relationship between post-TNT ctDNA expression and disease-free survival in colorectal cancer patients.