Clinical outcomes in ctDNA-positive urothelial carcinoma patients treated with adjuvant immunotherapy

Study ID Alternative Stable ID Type
EGAS00001004997 Other

Study Description

Minimally invasive approaches to detect residual disease after surgery are urgently needed to select patients at highest risk for metastatic relapse for additional therapies. Circulating tumour DNA (ctDNA) holds promise as a biomarker for molecular residual disease (MRD) and relapse,1-3 but its clinical value has yet to be demonstrated in a randomised clinical trial. We evaluated outcomes in post-surgical ctDNA-positive (+) patients in a randomised phase III trial of adjuvant atezolizumab versus observation. IMvigor010 enrolled 809 patients with muscle-invasive urothelial carcinoma and did not meet its primary endpoint of disease-free survival (DFS) in the intent-to-treat population. Within the study, an exploratory planned analysis of prospectively collected plasma was performed, which tested the utility of ctDNA to identify patients who may benefit from adjuvant atezolizumab treatment. ctDNA was measured at the start of therapy (cycle 1 day 1; C1D1) and at week 6 (cycle 3 day 1; C3D1), and 581 patients were evaluable for ctDNA. The prevalence of ctDNA positivity at C1D1 was 37% ... (Show More)

Study Datasets 5 datasets.

Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data

Dataset ID Description Technology Samples
ctDNA data from IMvigor010: ctDNA data include TMB_status, cfDNA_extracted_ng, Plasma_Volume_Used_ml, Sample_Call, Sample_Number_Positive_Calls, Sample_Mean_VAF_In_Plasma (%), Sample_MTM_per_mL_In_Plasma for 581 patients across IMvigor010.
RNAseq FASTq files from 728 bulk pre-treatment tumors from IMvigor010.
unspecified 728
Clinical data from IMvigor010: Clinical data include race, sex, baseline ecog, tumor stage, node status, prior neoadjuvant, PD-L1 status, number lymph nodes resected, pridis, arm, overall survival and disease free survival for 809 patients across IMvigor010.
TPM matrices of counts from RNAseq data for IMvigor010 from bulk pre-treatment tumors.
R code to run analyses on anonymized data from IMvigor010 ctDNA publication.

Who archives the data?

There are no publications available