Study of AB598 Monotherapy and Combination Therapy in Participants With Advanced Cancers

Overview

About this study

The purpose of this study is to assess the safety and tolerability of AB598 when taken alone, and in combination with zimberelimab and standard chemotherapy in participants with advanced malignancies.

 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Key Inclusion Criteria:

- Must have at least 1 measurable lesion per Response Evaluation Criteria in Solid
Tumors (RECIST) guidance

- Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1

- Monotherapy-specific criteria for dose escalation cohorts:

- Participants may have pathologically confirmed NSCLC, gastric/GEJ, esophageal,
HNSCC, bladder, RCC, TNBC, cervical, and ovarian cancers for which standard
therapy has proven ineffective, intolerable, or considered inappropriate

- Disease-specific criteria for dose-expansion Cohort 1 (NSCLC):

- Histologically confirmed, documented diagnosis of locally advanced unresectable
or metastatic non-squamous NSCLC

- Treatment-naive in the unresectable locally advanced or metastatic setting

- Cannot have progressed within 6 months of prior platinum-based chemotherapy

- Mixed small-cell lung cancer histology is not permitted

- Disease-specific criteria for dose expansion Cohort 2 (Gastric/GEJ):

- Histologically confirmed, documented diagnosis of human epidermal growth factor 2
(HER2)-negative locally advanced unresectable or metastatic gastric or GEJ
adenocarcinoma

- No prior systemic treatment for locally advanced unresectable or metastatic
disease

- Cannot have progressed within 6 months of prior platinum-based chemotherapy

Key Exclusion Criteria:

- Use of any live vaccines against infectious diseases (eg, influenza, varicella) within
4 weeks (28 days) of initiation of study

- Underlying medical conditions or AEs that, in the investigator's or sponsor's opinion,
will make the administration of the study drugs hazardous

- Any active or documented history of autoimmune disease including but not limited to
inflammatory bowel disease, celiac disease, Wegner syndrome, Hashimoto syndrome,
systemic lupus erythematosus, scleroderma, sarcoidosis, or autoimmune hepatitis,
within 3 years of the first dose of study treatment

- History of trauma or major surgery within 28 days prior to the first dose of study
drug

- Treatment with systemic immunosuppressive medication within 2 weeks prior to
initiation of study treatment, or anticipation of need for systemic immunosuppressant
medication during study treatment with certain protocol specified exceptions

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Eligibility last updated 12/5/23. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Mojun Zhu, M.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

Jacksonville, Fla.

Mayo Clinic principal investigator

Yanyan Lou, M.D., Ph.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Tanios Bekaii-Saab, M.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

More information

Publications

Publications are currently not available
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CLS-20568790

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