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NCT03272217

Atezolizumab With Bevacizumab in Previously Untreated Metastatic/Unresectable Urothelial Cancer

Terminated Phase 2 Results posted Last updated 7 January 2025
What this trial tests

Phase 2 trial testing Atezolizumab in Urothelial Carcinoma in 16 participants. Terminated before completion.

Timeline
13 September 2017
Primary endpoint
27 May 2021
17 March 2022

Quick facts

Lead sponsorArjun Balar, MD
PhasePhase 2
StatusTerminated
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment16
Start date13 September 2017
Primary completion27 May 2021
Estimated completion17 March 2022
Sites8 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

Arjun Balar, MD

Who can join

18 and older, any sex, with Urothelial Carcinoma. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Overall Survival (OS) Rate at 1 Year Primary · 1 years

Determine the percentage of overall survival at 1 years from the initiation of treatment. Overall survival is defined as the time from treatment start until death or date of last contact.

GroupValue95% CI
Arm A - Atezolizumab + Bevacizumab67
Objective Response Rate (ORR) Secondary · Up to a maximum of 14 months

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter(LD) of target lesions; Progressive Disease (PD): \>= 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions; Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as ref

GroupValue95% CI
Arm A - Atezolizumab + Bevacizumab6.67
Duration of Response (DOR) Secondary · Up to a maximum of 14 months

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD) \>= 20% increase in tumor burden relative to nadir or the appearance of one or more new lesions; Stable Disease (SD), not meet criteria for CR/PR/PD. DOR is defined as time from measurement criteria are met for complete or partial response (whichever status is recorded first) until the date that recurrent o

GroupValue95% CI
Arm A - Atezolizumab + Bevacizumab6.54
Progression-Free Survival (PFS) Secondary · Time of treatment start until the criteria for disease progression or death, up to a maximum of 36 months.

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD) \>= 20% increase in tumor burden relative to nadir or the appearance of one or more new lesions; Stable Disease (SD), not meet criteria for CR/PR/PD. PFS is defined as time from the date of treatment start until the criteria for disease progression is met as defined by RECIST 1.1 or death occurs

GroupValue95% CI
Arm A - Atezolizumab + Bevacizumab3.252.07 – NA
Number of Participants With Adverse Events Secondary · Adverse events were recorded from time of registration until 30 days after discontinuation of study drug(s), up to maximum of 12 months

Adverse events were recorded according to the National Cancer Institute's Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 4.

GroupValue95% CI
Arm A - Atezolizumab + Bevacizumab16

Adverse events — posted to ClinicalTrials.gov

Time frame: All-Cause Mortality was monitored up to a maximum of 36 months. Serious Adverse Events and Other (Not Including Serious) Adverse Events were monitored up to 12 months.. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Arm A - Atezolizumab + Bevacizumab
Serious: 8/16 (50%)
Deaths: 6/16

Serious adverse events (14 terms)

ReactionSystemArm A - Atezolizumab + Bev…
SEPSISInfections and infestations
URINARY TRACT INFECTIONInfections and infestations
ANEMIABlood and lymphatic system disorders
BLOOD BILIRUBIN INCREASEDInvestigations
ENCEPHALOPATHYNervous system disorders
FEVERGeneral disorders
HEPATIC FAILUREHepatobiliary disorders
HYPERGLYCEMIAMetabolism and nutrition disorders
KIDNEY INFECTIONInfections and infestations
NAUSEAGastrointestinal disorders
PAINGeneral disorders
PLEURAL EFFUSIONRespiratory, thoracic and mediastinal disorders
SURGICAL AND MEDICAL PROCEDURES - OTHER, SPECIFYSurgical and medical procedures
WOUND INFECTIONInfections and infestations
Other adverse events (101 terms — click to expand)

ReactionSystemArm A - Atezolizumab + Bev…
ANEMIABlood and lymphatic system disorders
FATIGUEGeneral disorders
CREATININE INCREASEDInvestigations
HYPERTENSIONVascular disorders
PRURITUSSkin and subcutaneous tissue disorders
ABDOMINAL PAINGastrointestinal disorders
BACK PAINMusculoskeletal and connective tissue disorders
CHILLSGeneral disorders
FEVERGeneral disorders
GENERALIZED MUSCLE WEAKNESSMusculoskeletal and connective tissue disorders
PROTEINURIARenal and urinary disorders
ANOREXIAMetabolism and nutrition disorders
CONSTIPATIONGastrointestinal disorders
HYPONATREMIAMetabolism and nutrition disorders
NAUSEAGastrointestinal disorders
URINARY TRACT INFECTIONInfections and infestations
VOMITINGGastrointestinal disorders
ALKALINE PHOSPHATASE INCREASEDInvestigations
CONFUSIONPsychiatric disorders
DYSPNEARespiratory, thoracic and mediastinal disorders
EDEMA LIMBSGeneral disorders
HYPOALBUMINEMIAMetabolism and nutrition disorders
HYPOTENSIONVascular disorders
MUSCLE WEAKNESS LOWER LIMBMusculoskeletal and connective tissue disorders
PAIN IN EXTREMITYMusculoskeletal and connective tissue disorders
SINUS TACHYCARDIACardiac disorders
WEIGHT LOSSInvestigations
AGITATIONPsychiatric disorders
ALLERGIC RHINITISRespiratory, thoracic and mediastinal disorders
COUGHRespiratory, thoracic and mediastinal disorders
DEHYDRATIONMetabolism and nutrition disorders
DIARRHEAGastrointestinal disorders
DIZZINESSNervous system disorders
DRY SKINSkin and subcutaneous tissue disorders
GASTROESOPHAGEAL REFLUX DISEASEGastrointestinal disorders
HEMATURIARenal and urinary disorders
HOARSENESSRespiratory, thoracic and mediastinal disorders
HYPOKALEMIAMetabolism and nutrition disorders
HYPOTHYROIDISMEndocrine disorders
MUSCULOSKELETAL AND CONNECTIVE TISSUE DISORDER - OTHER, SPECIFYMusculoskeletal and connective tissue disorders

Most-reported serious reactions: SEPSIS, URINARY TRACT INFECTION, ANEMIA, BLOOD BILIRUBIN INCREASED, ENCEPHALOPATHY, FEVER, HEPATIC FAILURE, HYPERGLYCEMIA.

Data from ClinicalTrials.gov NCT03272217 adverse events section.

Sponsor's own description

This is a phase II study assessing the activity of bevacizumab combined with atezolizumab in metastatic urothelial carcinoma patients who are ineligible for cisplatin-based therapy.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Combination of anti-angiogenic therapy and immune checkpoint blockade normalizes vascular-immune crosstalk to potentiate cancer immunity.
    Lee WS, Yang H, Chon HJ, Kim C. · · 2020 · cited 534× · PMID 32913278 · DOI 10.1038/s12276-020-00500-y
  2. Current Strategies and Novel Therapeutic Approaches for Metastatic Urothelial Carcinoma.
    Mollica V, Rizzo A, Montironi R, Cheng L, et al · · 2020 · cited 75× · PMID 32498352 · DOI 10.3390/cancers12061449
  3. Improving antitumor immunity using antiangiogenic agents: Mechanistic insights, current progress, and clinical challenges.
    Li SJ, Chen JX, Sun ZJ. · · 2021 · cited 63× · PMID 34137513 · DOI 10.1002/cac2.12183
  4. Mechanisms, combination therapy, and biomarkers in cancer immunotherapy resistance.
    Yang M, Cui M, Sun Y, Liu S, et al · · 2024 · cited 50× · PMID 38898505 · DOI 10.1186/s12964-024-01711-w
  5. Metastatic Urothelial Cancer: a rapidly changing treatment landscape.
    Stecca C, Abdeljalil O, Sridhar SS. · · 2021 · cited 40× · PMID 34616491 · DOI 10.1177/17588359211047352
  6. Emerging therapeutic agents for genitourinary cancers.
    Zarrabi K, Paroya A, Wu S. · · 2019 · cited 31× · PMID 31484560 · DOI 10.1186/s13045-019-0780-z
  7. Tumor Vessel Normalization: A Window to Enhancing Cancer Immunotherapy.
    Li S, Zhang Q, Hong Y. · · 2020 · cited 28× · PMID 33287656 · DOI 10.1177/1533033820980116
  8. Overcoming physical stromal barriers to cancer immunotherapy.
    Chung SW, Xie Y, Suk JS. · · 2021 · cited 20× · PMID 34351575 · DOI 10.1007/s13346-021-01036-y

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