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Phase 2 study of neoadjuvant immune checkpoint inhibitors in urothelial cancer (ABACUS-2)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-510750-28-00
Acronym
ABACUS-2
Enrollment
30
Registered
2024-09-20
Start date
2021-06-18
Completion date
Unknown
Last updated
2024-11-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

rare histological subtypes) and upper urinary tract (high grade or high risk), Tumours of the urothelial tract requiring surgery (T1 high grade-T4a of the bladder

Brief summary

This study has a clinical and a biological primary endpoint: Clinical: • Bladder Cohort rare histological subtypes: To assess the efficacy of atezolizumab pre-cystectomy with respect to pCR rate in patients with carcinoma of the urothelium of the bladder (T1 high grade-T4aN0-1M0) with mixed or rare histological subtypes • UTUC Cohort: To assess the efficacy of atezolizumab pre-surgery with respect to pCR rate in patients with high grade or high risk (N0-1M0) upper urinary tract urothelial ca

Detailed description

1).To evaluate the safety and tolerability of atezolizumab when given in neoadjuvant treatment, 2) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to anti-tumour effects as measured by Investigator assessed radiological response (RR)., 3) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to antitumour effects based on Investigator assessed disease-free survival (DFS)., 4) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to overall survival (OS).

Interventions

DRUGTecentriq 1 200 mg concentrate for solution for infusion

Sponsors

Queen Mary University Of London
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
This study has a clinical and a biological primary endpoint: Clinical: • Bladder Cohort rare histological subtypes: To assess the efficacy of atezolizumab pre-cystectomy with respect to pCR rate in patients with carcinoma of the urothelium of the bladder (T1 high grade-T4aN0-1M0) with mixed or rare histological subtypes • UTUC Cohort: To assess the efficacy of atezolizumab pre-surgery with respect to pCR rate in patients with high grade or high risk (N0-1M0) upper urinary tract urothelial ca

Secondary

MeasureTime frame
1).To evaluate the safety and tolerability of atezolizumab when given in neoadjuvant treatment, 2) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to anti-tumour effects as measured by Investigator assessed radiological response (RR)., 3) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to antitumour effects based on Investigator assessed disease-free survival (DFS)., 4) To assess the efficacy of atezolizumab given in the neoadjuvant setting before radical surgery with respect to overall survival (OS).

Countries

France, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026