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A Study of Atezolizumab (Tecentriq) in Combination With Bevacizumab to Investigate Safety and Efficacy in Patients With Unresectable Hepatocellular Carcinoma Not Previously Treated With Systemic Therapy-Amethista

A Phase IIIB, Single Arm, Multicenter Study of Atezolizumab (Tecentriq) in Combination With Bevacizumab to Investigate Safety and Efficacy in Patients With Unresectable Hepatocellular Carcinoma Not Previously Treated With Systemic Therapy-Amethista

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04487067
Acronym
AMETHISTA
Enrollment
152
Registered
2020-07-27
Start date
2020-08-25
Completion date
2024-08-13
Last updated
2025-09-22

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

Conditions

Carcinoma, Hepatocellular

Brief summary

This is a Phase IIIb, one arm, multicenter, open-label study designed to evaluate the safety and efficacy of atezolizumab + bevacizumab in patients with unresectable HCC who have received no prior systemic treatment.

Interventions

DRUGAtezolizumab

Atezolizumab 1200 mg IV infusion q3w

DRUGBevacizumab

Bevacizumab 15 mg/kg IV Q3W

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Unresectable HCC with diagnosis confirmed by histology, with a biopsy within 6 months from recruitment; * Disease that is not amenable to curative surgical and/or locoregional therapies, or progressive disease after surgical and /or locoregional therapies; * No prior systemic therapy for HCC; * At least one measurable untreated lesion; * Patients who received prior local therapy are eligible provided the target lesion(s) have not been previously treated with local therapy or the target lesion(s) within the field of local therapy have subsequently progressed in accordance with RECIST version 1.1; * ECOG Performance Status of 0 or 1 within 7 days prior to recruitment; * Child-Pugh class A within 7 days prior to recruitment; * Patients must undergo an esophagogastroduodenoscopy (EGD), and all size of varices (small to large) must be assessed. In case of varices at high risk of bleeding (corresponding to medium (F2) or large (F3) varices, or F1 varices with cherry red spots or red wale marking) prophylatic treatment per local standard of care must be adopted prior to enrollment. Patients who have undergone an EGD within 6 months of prior to initiation of study treatment do not need to repeat the procedure provided they had no varices at high risk of bleeding; * Adequate hematologic and end-organ function * Resolution of any acute, clinically significant treatment-related toxicity from prior therapy to Grade \<= 1 prior to study entry, with the exception of alopecia * Negative HIV test at screening with the following exception: patients with a positive HIV test at screening are eligible provided they are stable on anti-retroviral therapy, have a CD4 count ≥200µL, and have an undetectable viral load; * In patients with viral HCC, documented virology status of hepatitis, as confirmed by screening HBV and HCV serology test; * For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods, and agreement to refrain from donating eggs. * For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agreement to refrain from donating sperm.

Exclusion criteria

* History of leptomeningeal disease or brain metastases; * Active or history of autoimmune disease or immune deficiency; * History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan; * Known active tuberculosis; * Significant cardiovascular disease within 3 months prior to initiation of study treatment, unstable arrhythmia, or unstable angina; * History of malignancy other than HCC within 5 years prior to screening, with the exception of malignancies with a negligible risk of metastasis or death; * Prior allogeneic stem cell or solid organ transplantation; * Pregnancy or breastfeeding, or intention of becoming pregnant during study treatment or within at least 5 months after the last dose of atezolizumab and 6 months after the last dose of bevacizumab; * Known fibrolamellar HCC, sarcomatoid HCC, or mixed cholangiocarcinoma and HCC; * Untreated or incompletely treated esophageal and/or gastric varices with bleeding or high-risk for bleeding; * A prior bleeding event due to oesophageal and/or gastric varices within 6 months prior to initiation of study treatment; * Clinically evident ascites; * Co-infection of HBV and HCV; * Co-infection with HBV and hepatitis D viral infection; * Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases; * Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures; * Clinically significant uncontrolled or symptomatic hypercalcemia; * Inadequately controlled arterial hypertension; * Significant vascular disease within 6 months prior to initiation of study treatment; * History of haemoptysis; * Evidence of bleeding diathesis or significant coagulopathy; * History of gastrointestinal (GI) fistula, GI perforation, or intra-abdominal abscess within 6 months prior to initiation of study treatment; * History of intestinal obstruction and/or clinical signs or symptoms of GI obstruction including sub-occlusive disease related to the underlying disease or requirement for routine parenteral hydration, parenteral nutrition, or tube feeding prior to initiation of study treatment; * Metastatic disease that involves major airways or blood vessels, or centrally located mediastinal tumor masses of large volume; * Local therapy to liver within 28 days prior to initiation of study treatment or non-recovery from side effects of any such procedure.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Grade 3-5 National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5) Bleeding/HaemorrhageUp to approximately 47.6 monthsAn adverse event (AE) was any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Severity of AEs was graded using NCI CTCAE v5.0. Grade 3=Severe/medically significant but not immediately life-threatening, hospitalization/prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living; Grade 4=Life-threatening consequences, urgent intervention indicated; Grade 5=Death related to AE.

Secondary

MeasureTime frameDescription
Overall Survival (OS)Up to approximately 47.6 monthsOS was defined as the time from initiation of study treatment to death from any cause. Kaplan-Meier (K-M) method was used to estimate the OS.
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)Up to approximately 47.6 monthsAn AE was any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. TEAEs are defined as AEs with onset date on or after the start of the first study treatment component. Number of participants with any TEAEs are reported here.
Progression-free Survival (PFS)Up to approximately 47.6 monthsPFS was defined as the time from initiation of study treatment to the first occurrence of disease progression (PD) or death from any cause (whichever occurs first), as determined by the investigator according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1). PD was defined as at least a 20% increase in the sum of diameters (SOD) of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 millimeters (mm). Participants alive and without any PD were censored at the last assessment date. K-M method was used to estimate the PFS.
Objective Response Rate (ORR)Up to approximately 47.6 monthsORR was defined as the percentage of participants with complete or partial response (CR or PR), as determined by the investigator according to RECIST v1.1. CR was defined as disappearance of all target lesions or any pathological lymph nodes must have reduction in short axis to \< 10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR.
Duration of Response (DOR)Up to approximately 47.6 monthsDOR was defined as the time from the first occurrence of a documented objective response (CR or PR) to PD or death from any cause (whichever occurs first), as determined by the investigator according to RECIST v1.1. CR was defined as disappearance of all target lesions or any pathological lymph nodes must have reduction in short axis to \< 10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants who were alive and without any PD were censored at the last assessment date. K-M method was used to estimate the DOR.
Post-progression Survival (PPS)Up to approximately 47.6 monthsPPS was defined as the time from the first occurrence of PD as determined by the investigator according to RECIST v1.1 to death from any cause. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants who were alive were censored at the last assessment date. K-M method was used to estimate the PPS.
Number of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireFrom Cycle 1 Day 1 to Cycle 63 Day 1 (1 Cycle = 21 days)Participants self-reported symptomatic AEs using PRO-CTCAE, a validated item bank used to characterize presence, frequency of occurrence, severity, &/or degree of interference with daily function of 78 patient-reportable symptomatic treatment toxicities. PRO-CTCAE contains questions that are rated either dichotomously (for determination of presence vs. absence) or on a 5-point Likert scale (for determination of frequency of occurrence,severity,& interference with daily function). Treatment toxicities can occur with observable signs (e.g.,vomiting)/ non-observable symptoms (e.g.,nausea). A subset of 14 symptoms most applicable to current treatments were selected for this study. Symptoms were selected based on toxicities associated with the drug's class, mechanism of action, or mode of administration, and toxicities reported with the drug in another indication. Number of participants who reported severe symptoms per the PRO-CTCAE questionnaire on Day 1 of each cycle is reported here.
Number of Participants Reporting Very Severe Symptoms in PRO-CTCAE QuestionnaireFrom Cycle 1 Day 1 to Cycle 63 Day 1 (1 Cycle = 21 days)Participants self-reported symptomatic AEs using PRO-CTCAE, a validated item bank used to characterize presence, frequency of occurrence, severity, &/or degree of interference with daily function of 78 patient-reportable symptomatic treatment toxicities. PRO-CTCAE contains questions that are rated either dichotomously (for determination of presence vs. absence) or on a 5-point Likert scale (for determination of frequency of occurrence,severity,& interference with daily function). Treatment toxicities can occur with observable signs (e.g.,vomiting)/ non-observable symptoms (e.g.,nausea). A subset of 14 symptoms most applicable to current treatments were selected for this study. Symptoms were selected based on toxicities associated with the drug's class, mechanism of action, or mode of administration, &toxicities reported with the drug in another indication. Number of participants who reported very severe symptoms per the PRO-CTCAE questionnaire on Day 1 of each cycle is reported here.
Time to Progression (TTP)Up to approximately 47.6 monthsTTP was defined as the time from initiation of study treatment to the first occurrence of PD, as determined by the investigator according to RECIST v1.1. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants without any PD were censored at the last assessment date. K-M method was used to estimate the TTP.

Other

MeasureTime frame
Number of Participants Starting Second or Further Lines of TreatmentUp to approximately 47.6 months

Countries

Italy

Participant flow

Recruitment details

A total of 152 participants with unresectable hepatocellular carcinoma (HCC) and no prior systemic treatment took part in the study at 21 investigative sites in Italy from 25 August 2020 to 13 August 2024.

Pre-assignment details

Participants received atezolizumab in combination with bevacizumab until unacceptable toxicity or loss of clinical benefit as determined by the investigator. Of the 152 participants enrolled, three participants did not receive any treatment.

Participants by arm

ArmCount
Atezolizumab + Bevacizumab
Participants received atezolizumab, 1200 mg as IV infusion, along with bevacizumab, 15 mg/kg, also as IV infusion, Q3W on Day 1 of each 21-day cycle until unacceptable toxicity or loss of clinical benefit as determined by the investigator.
152
Total152

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event3
Overall StudyDeath Due To Progressive Disease40
Overall StudyDeath Other Than Progressive Disease60
Overall StudyLost to Follow-up3
Overall StudyParticipant Discontinued From Study as per Protocol6
Overall StudyProgressive Disease1
Overall StudyProtocol Violation3
Overall StudyWithdrawal by Subject15

Baseline characteristics

CharacteristicAtezolizumab + Bevacizumab
Age, Continuous67.1 years
STANDARD_DEVIATION 10.52
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
141 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
Race (NIH/OMB)
White
145 Participants
Sex: Female, Male
Female
31 Participants
Sex: Female, Male
Male
121 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
102 / 149
other
Total, other adverse events
142 / 149
serious
Total, serious adverse events
62 / 149

Outcome results

Primary

Number of Participants With Grade 3-5 National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5) Bleeding/Haemorrhage

An adverse event (AE) was any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Severity of AEs was graded using NCI CTCAE v5.0. Grade 3=Severe/medically significant but not immediately life-threatening, hospitalization/prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living; Grade 4=Life-threatening consequences, urgent intervention indicated; Grade 5=Death related to AE.

Time frame: Up to approximately 47.6 months

Population: Safety analysis population included all enrolled participants who had at least one full or partial administration of atezolizumab plus bevacizumab.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Atezolizumab + BevacizumabNumber of Participants With Grade 3-5 National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5) Bleeding/HaemorrhageGrade 317 Participants
Atezolizumab + BevacizumabNumber of Participants With Grade 3-5 National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5) Bleeding/HaemorrhageGrade 43 Participants
Atezolizumab + BevacizumabNumber of Participants With Grade 3-5 National Cancer Institute Common Terminology Criteria for Adverse Events, Version 5.0 (NCI CTCAE V5) Bleeding/HaemorrhageGrade 52 Participants
Secondary

Duration of Response (DOR)

DOR was defined as the time from the first occurrence of a documented objective response (CR or PR) to PD or death from any cause (whichever occurs first), as determined by the investigator according to RECIST v1.1. CR was defined as disappearance of all target lesions or any pathological lymph nodes must have reduction in short axis to \< 10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants who were alive and without any PD were censored at the last assessment date. K-M method was used to estimate the DOR.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study. Overall number analyzed is the number of participants with an objective response (CR or PR).

ArmMeasureValue (MEDIAN)
Atezolizumab + BevacizumabDuration of Response (DOR)17.35 months
Secondary

Number of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) Questionnaire

Participants self-reported symptomatic AEs using PRO-CTCAE, a validated item bank used to characterize presence, frequency of occurrence, severity, &/or degree of interference with daily function of 78 patient-reportable symptomatic treatment toxicities. PRO-CTCAE contains questions that are rated either dichotomously (for determination of presence vs. absence) or on a 5-point Likert scale (for determination of frequency of occurrence,severity,& interference with daily function). Treatment toxicities can occur with observable signs (e.g.,vomiting)/ non-observable symptoms (e.g.,nausea). A subset of 14 symptoms most applicable to current treatments were selected for this study. Symptoms were selected based on toxicities associated with the drug's class, mechanism of action, or mode of administration, and toxicities reported with the drug in another indication. Number of participants who reported severe symptoms per the PRO-CTCAE questionnaire on Day 1 of each cycle is reported here.

Time frame: From Cycle 1 Day 1 to Cycle 63 Day 1 (1 Cycle = 21 days)

Population: Safety analysis population included all enrolled participants who had at least one full or partial administration of atezolizumab plus bevacizumab.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 1 Day 139 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 2 Day 133 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 3 Day 123 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 4 Day 130 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 5 Day 123 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 6 Day 122 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 7 Day 117 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 8 Day 114 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 9 Day 119 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 10 Day 116 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 11 Day 117 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 12 Day 116 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 13 Day 113 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 14 Day 113 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 15 Day 19 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 16 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 17 Day 110 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 18 Day 110 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 19 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 20 Day 111 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 21 Day 15 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 22 Day 16 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 23 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 24 Day 110 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 25 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 26 Day 17 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 27 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 28 Day 110 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 29 Day 16 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 30 Day 17 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 31 Day 17 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 32 Day 16 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 33 Day 16 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 34 Day 17 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 35 Day 19 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 36 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 37 Day 17 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 38 Day 19 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 39 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 40 Day 18 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 41 Day 15 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 42 Day 16 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 43 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 44 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 45 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 46 Day 12 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 47 Day 12 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 48 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 49 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 50 Day 12 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 51 Day 13 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 52 Day 12 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 53 Day 12 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 54 Day 11 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 55 Day 11 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 56 Day 11 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 57 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 58 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 59 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 60 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 61 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 62 Day 10 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Severe Symptoms in Patient-Reported Outcomes of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) QuestionnaireCycle 63 Day 10 Participants
Secondary

Number of Participants Reporting Very Severe Symptoms in PRO-CTCAE Questionnaire

Participants self-reported symptomatic AEs using PRO-CTCAE, a validated item bank used to characterize presence, frequency of occurrence, severity, &/or degree of interference with daily function of 78 patient-reportable symptomatic treatment toxicities. PRO-CTCAE contains questions that are rated either dichotomously (for determination of presence vs. absence) or on a 5-point Likert scale (for determination of frequency of occurrence,severity,& interference with daily function). Treatment toxicities can occur with observable signs (e.g.,vomiting)/ non-observable symptoms (e.g.,nausea). A subset of 14 symptoms most applicable to current treatments were selected for this study. Symptoms were selected based on toxicities associated with the drug's class, mechanism of action, or mode of administration, &toxicities reported with the drug in another indication. Number of participants who reported very severe symptoms per the PRO-CTCAE questionnaire on Day 1 of each cycle is reported here.

Time frame: From Cycle 1 Day 1 to Cycle 63 Day 1 (1 Cycle = 21 days)

Population: Safety analysis population included all enrolled participants who had at least one full or partial administration of atezolizumab plus bevacizumab.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Atezolizumab + BevacizumabNumber of Participants Reporting Very Severe Symptoms in PRO-CTCAE QuestionnaireCycle 1 Day 115 Participants
Atezolizumab + BevacizumabNumber of Participants Reporting Very Severe Symptoms in PRO-CTCAE QuestionnaireCycle 2 Day 118 Participants
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Secondary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

An AE was any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. TEAEs are defined as AEs with onset date on or after the start of the first study treatment component. Number of participants with any TEAEs are reported here.

Time frame: Up to approximately 47.6 months

Population: Safety analysis population included all enrolled participants who had at least one full or partial administration of atezolizumab plus bevacizumab.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Atezolizumab + BevacizumabNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)144 Participants
Secondary

Objective Response Rate (ORR)

ORR was defined as the percentage of participants with complete or partial response (CR or PR), as determined by the investigator according to RECIST v1.1. CR was defined as disappearance of all target lesions or any pathological lymph nodes must have reduction in short axis to \< 10 mm. PR was defined as at least a 30% decrease in the SOD of all target lesions, taking as reference the baseline SOD, in the absence of CR.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study.

ArmMeasureValue (NUMBER)
Atezolizumab + BevacizumabObjective Response Rate (ORR)28.29 percentage of participants
Secondary

Overall Survival (OS)

OS was defined as the time from initiation of study treatment to death from any cause. Kaplan-Meier (K-M) method was used to estimate the OS.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study. Overall number analyzed is the number of participants with data available for analysis.

ArmMeasureValue (MEDIAN)
Atezolizumab + BevacizumabOverall Survival (OS)20.76 months
Secondary

Post-progression Survival (PPS)

PPS was defined as the time from the first occurrence of PD as determined by the investigator according to RECIST v1.1 to death from any cause. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants who were alive were censored at the last assessment date. K-M method was used to estimate the PPS.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study. Overall number analyzed is the number of participants with a progressive disease.

ArmMeasureValue (MEDIAN)
Atezolizumab + BevacizumabPost-progression Survival (PPS)11.27 months
Secondary

Progression-free Survival (PFS)

PFS was defined as the time from initiation of study treatment to the first occurrence of disease progression (PD) or death from any cause (whichever occurs first), as determined by the investigator according to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1). PD was defined as at least a 20% increase in the sum of diameters (SOD) of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 millimeters (mm). Participants alive and without any PD were censored at the last assessment date. K-M method was used to estimate the PFS.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study. Overall number analyzed is the number of participants with data available for analysis.

ArmMeasureValue (MEDIAN)
Atezolizumab + BevacizumabProgression-free Survival (PFS)8.80 months
Secondary

Time to Progression (TTP)

TTP was defined as the time from initiation of study treatment to the first occurrence of PD, as determined by the investigator according to RECIST v1.1. PD was defined as at least a 20% increase in the SOD of target lesions, taking as reference the smallest SOD at prior timepoints (including baseline). In addition to the relative increase of 20%, the SOD must also demonstrate an absolute increase of ≥ 5 mm. Participants without any PD were censored at the last assessment date. K-M method was used to estimate the TTP.

Time frame: Up to approximately 47.6 months

Population: ITT population included all participants who signed the ICF and were enrolled in the study. Overall number analyzed is the number of participants with data available for analysis.

ArmMeasureValue (MEDIAN)
Atezolizumab + BevacizumabTime to Progression (TTP)11.24 months
Other Pre-specified

Number of Participants Starting Second or Further Lines of Treatment

Time frame: Up to approximately 47.6 months

Population: Per protocol, this is an exploratory outcome measure; therefore, the results have not been reported.

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026