A Study to Evaluate the Safety, Pharmacokinetics, and Activity of RO7566802 as a Single Agent and in Combination With Atezolizumab in Participants With Locally Advanced or Metastatic Solid Tumors

July 27, 2026 updated by: Genentech, Inc.

A Phase I, Open-Label, Multicenter, Dose-Escalation Study Evaluating the Safety, Pharmacokinetics, and Activity of RO7566802 as a Single Agent and in Combination With Atezolizumab in Patients With Locally Advanced or Metastatic Solid Tumors

This is a first-in-human Phase I, open-label, dose-escalation and expansion study designed to evaluate the safety, tolerability, pharmacokinetics, immunogenicity, pharmacodynamic, and preliminary anti-tumor activity of RO7566802 as a single agent and in combination with atezolizumab in participants with locally advanced, recurrent, or metastatic incurable solid tumor malignancies. Participants will be enrolled in 2 stages: dose escalation and expansion.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
65

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Fastest response: use the inquiry form. No email attachments. https://www.gene.com/contact-us/submit-medical-inquiry

Study Locations

  • Australia
    • New South Wales
      • Darlinghurst, New South Wales, Australia, 2010
        • St Vincent's Hospital Sydney
    • Victoria
      • Melbourne, Victoria, Australia, 3000
        • Peter MacCallum Cancer Centre
  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 4E6
        • British Columbia Cancer Agency - 600 10th Ave W
    • Ontario
      • Toronto, Ontario, Canada, M5G 1Z5
        • Princess Margaret Cancer Centre
  • Singapore
      • Singapore, Singapore, 119074
        • National University Hospital
      • Singapore, Singapore, 168583
        • National Cancer Centre
  • United Kingdom
      • Cambridge, United Kingdom, CB2 0QQ
        • Addenbrooke's Hospital
      • Leicester, United Kingdom, LE1 5WW
        • Leicester Royal Infirmary
      • London, United Kingdom, W1G 6AD
        • Sarah Cannon Research Institute
      • London, United Kingdom, EC1A 7BE
        • St Bartholomew's Hospital
      • Oxford, United Kingdom, OX3 7LJ
        • Churchill Hospital
      • Sutton, United Kingdom, SM2 5PT
        • The Royal Marsden Hospital
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • University of Alabama at Birmingham (UAB)
    • Connecticut
      • New Haven, Connecticut, United States, 06520
        • Yale Cancer Center
    • New York
      • New York, New York, United States, 10029
        • Icahn School of Medicine at Mount Sinai (ISMMS)
    • Ohio
      • Columbus, Ohio, United States, 43221-3502
        • The Ohio State University
    • Pennsylvania
      • Harrisburg, Pennsylvania, United States, 17109
        • Magee-Woman's Hospital
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • SCRI oncology partners

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-1
  • Life expectancy >=3 months, in the investigator's judgment
  • Adequate hematologic and end-organ function
  • Histologically confirmed locally advanced, recurrent, or metastatic incurable solid tumor malignancy that has progressed after available standard therapy; or for whom standard therapy has proven to be ineffective or intolerable or is considered inappropriate; or for whom a clinical trial of an investigational agent is a recognized standard of care
  • Measurable disease per RECIST v1.1
  • Tumor specimen availability, for certain cohorts

Exclusion Criteria:

  • Any anti-cancer therapy, whether investigational or approved, including chemotherapy, hormonal therapy, or radiotherapy, within 3 weeks prior to Cycle 1 Day 1, with certain exceptions
  • Active hepatitis B or C
  • Active tuberculosis
  • Positive test for human immunodeficiency virus (HIV) infection
  • Administration of a live, attenuated vaccine (e.g., Flumist) within 4 weeks prior to RO7566802 infusion
  • Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases
  • Active or history of autoimmune disease
  • Prior allogeneic stem cell or organ transplantation
  • Uncontrolled tumor-related pain
  • Significant cardiovascular disease

Other protocol-defined inclusion/exclusion criteria may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Dose Escalation Cohort
Participants in successive cohorts will receive escalating doses of RO7566802, as an intravenous (IV) infusion on Day 1 of each 21-day cycle followed by RO7566802 in combination with a fixed dose of atezolizumab, as an IV infusion on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity.
Drug: RO7566802
RO7566802 solution for infusion will be administered as specified in each treatment arm.
Drug: Atezolizumab
Atezolizumab solution for infusion will be administered as specified in each treatment arm.
Other Names:
  • Tecentriq®
Experimental: Dose Expansion Cohort
Participants with select solid tumors will receive a recommended dose of RO7566802, determined in Dose Escalation phase, as an IV infusion in combination with a fixed dose of atezolizumab, as an IV infusion on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity.
Drug: RO7566802
RO7566802 solution for infusion will be administered as specified in each treatment arm.
Drug: Atezolizumab
Atezolizumab solution for infusion will be administered as specified in each treatment arm.
Other Names:
  • Tecentriq®

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Number of Participants with Dose-limiting Toxicity (DLTs)
Time Frame: Cycle 1 Day 1 through 21 days after Cycle 2 Day 1 (Cycle length=21 days) (up to approximately 42 days)
Cycle 1 Day 1 through 21 days after Cycle 2 Day 1 (Cycle length=21 days) (up to approximately 42 days)
Percentage of Participants with Adverse Events (AEs) Determined According to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE v5.0)
Time Frame: Up to approximately 4 years
Up to approximately 4 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Area Under the Serum Concentration Time Curve (AUC) of RO7566802
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Maximum Serum Concentration (Cmax) of RO7566802
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Minimum Serum Concentration (Cmin) of RO7566802
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Total Clearance (CL) of RO7566802
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Volume of Distribution at Steady State (Vss) of RO7566802
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Serum Concentration of Atezolizumab
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Objective Response Rate as Determined by Investigator According to Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1)
Time Frame: Up to approximately 4 years
Up to approximately 4 years
Percentage of Participants with Anti-Drug Antibodies (ADAs) to RO7566802
Time Frame: From Baseline up to approximately 4 years
From Baseline up to approximately 4 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Genentech, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Clinical Trials, Hoffmann-La Roche

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 27, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 3, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 3, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 4, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 4, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 11, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 28, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 27, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GO44431
  • 2023-509266-38-00 (Ctis: EU Clinical Trials Information System (CTIS))

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/ourmember/roche/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/research_and_development/who_we_are_how_we_work/clinical_trials/our_commitment_to_data_sharing.htm).

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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