About this trial
International study that will evaluate the association of prespecified biomarkers with resistance to Antibody-drug conjugates (ADCs), a type of targeted cancer treatment currently used in clinical practice for treating different tumor types.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients must have signed a written informed consent form prior to any trial specific procedures;
Patients must be ≥18 years old;
Histologically confirmed or radiologically documented unresectable locally advanced or metastatic cancer (Breast, Urothelial, Non small Cell Lung or Gastric) with an indication to receive an Antibody-Drug Conjugate (ADC) approved or accessible through an early access program;
Patients must have at least 2 tumor lesions (primary tumor can be included): at least one measurable tumor lesion for tumor evaluation according to response evaluation criteria in solid tumors (RECIST) V1.1 and at least one tumor lesion other than bone and brain for biopsy;
Disqualifiers
Patients treated with an antibody drug conjugate in a curative setting;
Patients who did not consent to sample use;
Presence of another progressive pathology with short-term life-threatening prognosis;
Patients undergoing concurrent treatment for a malignancy or hematologic disorder distinct from the indication for which the ADC is being administered.
Trial design
Parallel
Treatments tested in this trial
Biological samples collection
Procedure/SurgeryBiological samples collection (tumor tissue, blood, sputum) before initiation of treatment, during treatment, and at treatment discontinuation.
questionnaires to collect patient reported outcomes
BehavioralQLQ-C30, QLQ-FA12, HADS, EQ-5D 5L
Treatment groups
Trial outcomes
Primary outcomes
Biomarkers of resistance to ADC
Resistance is defined by differences in the frequency (higher or lower) of molecular aberrations detected between paired baseline samples and progression samples (i.e., samples collected at the time of disease progression under ADC treatment)
Secondary outcomes
Additional biomarkers of resistance characterised by histology
Differences in the frequency of molecular aberrations characterised by histologic/proteomic/genomic/transcriptomic analysis between samples of patients progressing on ADC and paired pre-treatment samples (beyond biomarkers of primary outcome)
Biomarkers of ADC outcome
Progression-Free Survival (PFS) defined as the time from start of treatment and radiological progression or death, whichever occurs first. Tumor assessments are made by local investigators as per standard practice (RECIST 1.1.). Patients still alive at the cut-off time without documented progression (including lost to follow-up) will be censored at the time of latest evaluable efficacy assessment.
Biomarkers of ADC outcome
Objective Response Rate (ORR) defined as the proportion of patients with a confirmed complete response (CR) or partial response (PR) assessed by investigators after 6 months of treatment.
Biomarkers of ADC outcome
Clinical Benefit Rate (CBR) defined as the proportion of patients who had a CR, PR, or stable disease for 6 months or more.