Safety and Preliminary Effectiveness of BGB-A445 in Combination With Tislelizumab in Participants With Advanced Solid Tumors
Study Details
Study Description
Brief Summary
The purpose of this study is to assess the safety and tolerability of BGB-A445 alone and in combination with tislelizumab in participants with advanced solid tumors; and to determine the maximum tolerated dose(s) (MTD) or maximum administered dose(s) (MAD) and recommended Phase 2 doses (RP2D) of BGB-A445 alone and in combination with tislelizumab.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
| Phase 1 |
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Phase 1a: BGB-A445 Monotherapy Dose Escalation Part A: Participants will receive intravenous (IV) infusion of BGB-A445 in sequential cohorts of approximately 8 increasing dose levels on day 1 of each 21-day cycle |
Drug: BGB-A445
Administered as specified in the treatment arm
|
| Experimental: Phase 1a: BGB-A445 + Tislelizumab Combination Therapy Dose Escalation Part B: Participants will receive IV infusion of BGB-A445 in sequential cohorts of approximately 6 increasing dose levels plus 200mg tislelizumab on day 1 of each 21-day cycle |
Drug: BGB-A445
Administered as specified in the treatment arm
Drug: tislelizumab
Administered as specified in the treatment arm
Other Names:
|
| Experimental: Phase 1b:BGB-A445 Monotherapy Dose Expansion: Participants will receive recommended doses of IV BGB-A445 as determined from Phase 1a Dose Escalation; BGB-A445 will be evaluated in two tumor types |
Drug: BGB-A445
Administered as specified in the treatment arm
|
Outcome Measures
Primary Outcome Measures
- Phase 1a: Number of Participants Experiencing Adverse Events (AEs) [Up to 90 days after the last dose of study drug(s) regardless of whether the participant starts a subsequent anticancer therapy]
- Phase 1a: Number of Participants Experiencing Serious Adverse Events (SAEs) [Up to 90 days after the last dose of study drug(s) regardless of whether the participant starts a subsequent anticancer therapy]
- Phase 1a: Number of Participants Experiencing AEs meeting protocol defined Dose-Limiting Toxicity (DLT) criteria [Up to 90 days after the last dose of study drug(s) regardless of whether the participant starts a subsequent anticancer therapy]
- Phase 1a: Maximum Tolerated Dose (MTD) of BGB-A445 [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
The MTD is defined as the highest dose evaluated for which the estimated toxicity rate is closest to the target toxicity rate of 30%
- Phase 1b: RP2D of BGB-A445 when Administered Alone [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1b: Overall Response Rate (ORR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
ORR is defined as the proportion of participants who had confirmed complete response Complete Response (CR) or Partial Response (PR)
Secondary Outcome Measures
- Phase 1a: Overall Response Rate (ORR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1a: Duration of Response (DOR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1a: Disease-Control Rate (DCR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1a: Serum Concentration of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1a: Serum Concentration of tislelizumab [60 minutes predose up to 72 hours postdose]
- Phase 1a: Maximum Observed Plasma Concentration (Cmax) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1a: Maximum Observed Plasma Concentration (Cmax) of tislelizumab [60 minutes predose up to 72 hours postdose]
- Phase 1a: Minimum Observed Plasma Concentration (Cmin) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1a: Minimum Observed Plasma Concentration (Cmin) of tislelizumab [60 minutes predose up to 72 hours postdose]
- Phase 1a: Time to Maximum Plasma Concentration (Tmax) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1a: Time to Maximum Plasma Concentration (Tmax) of tislelizumab [60 minutes predose up to 72 hours postdose]
- Phase 1a: Area Under the Concentration-Time Curve of 0-21 Days (AUC0-21d) of BGB-A445 [60 minutes predose up to 21 days postdose]
- Phase 1a: Immunogenic Responses to BGB-A445 as assessed through the detection of antidrug antibodies [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1a: Immunogenic Responses to tislelizumab as assessed through the detection of antidrug antibodies [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1b: Progression-free survival (PFS) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
Determined from investigator derived tumor assessments as per RECIST 1.1
- Phase 1b: Duration of Response (DOR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1b: Disease-Control Rate (DCR) as Assessed by the Investigator [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
- Phase 1b: Number of Participants Experiencing Adverse Events (AEs) [Up to 90 days after the last dose of study drug(s) regardless of whether the participant starts a subsequent anticancer therapy]
- Phase 1b: Number of Participants Experiencing Serious Adverse Events (SAEs) [Up to 90 days after the last dose of study drug(s) regardless of whether the participant starts a subsequent anticancer therapy]
- Phase 1b: Serum Concentration of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1b: Maximum Observed Plasma Concentration (Cmax) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1b: Minimum Observed Plasma Concentration (Cmin) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1b: Time to Maximum Plasma Concentration (Tmax) of BGB-A445 [60 minutes predose up to 72 hours postdose]
- Phase 1b: Area Under the Concentration-Time Curve of 0-21 Days (AUC0-21d) of BGB-A445 [60 minutes predose up to 21 days postdose]
- Phase 1b: Immunogenic Responses to BGB-A445 as assessed through the detection of antidrug antibodies [Up to 30 days after the last dose of study drug(s) or before the initiation of a new anticancer treatment, whichever occurs first]
Eligibility Criteria
Criteria
Key Inclusion Criteria:
-
Phase 1a (dose escalation): Participants with histologically or cytologically confirmed advanced, metastatic, unresectable solid tumors who have previously received standard systemic therapy or for whom treatment is not available, not tolerated or refused.
-
Enrollment will be limited to participants with advanced solid tumors for which there is clinical evidence of response to T cell based immuno-oncology agents (eg, anti PD 1) or other scientific evidence in support of an immunologically sensitive tumor type.
-
Participant has not received prior therapy targeting OX40 or any other T cell agonist therapy (prior checkpoint inhibitor therapy is allowed)
-
Phase 1b (dose expansion): Participants in specific tumor type cohorts for whom standard systemic treatment is not available, not tolerated, or refused. Participant must not have received prior therapy targeting OX40 or any other T-cell agonist. Prior checkpoint inhibitor therapy is allowed.
-
Has at least 1 measurable lesion as defined per RECIST 1.1. The target lesion(s) selected have not been previously treated with local therapy OR the target lesion(s) selected that are within the field of prior local therapy have subsequently progressed as defined by RECIST 1.1
-
Participants must be able to provide an archived formalin fixed paraffin embedded (FFPE) tumor tissue sample (block or approximately 15 freshly unstained FFPE slides) after the most recent line of therapy. If archival tissue is not available, fresh tumor biopsy is mandatory.
- Participants enrolled must provide baseline tumor tissue as outlined as well as be willing and medically fit to undergo mandatory on treatment biopsies with no excessive risk as judged by the investigator
-
Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1
-
Adequate organ function as indicated by the following laboratory values up to first dose of study drug
-
Participants must not have required blood transfusion or growth factor support ≤ 14 days before sample collection for the following:
-
Absolute neutrophil count ≥ 1.5 x 10^9/L
-
Platelet count ≥ 75 x 10^9/L
-
Hemoglobin ≥ 90g/L
- Estimated glomerular filtration rate (GFR) ≥ 60 mL/min/1.73 m^2 determined by the Cockcroft-Gault formula without correction for body surface area (BSA)
- The estimated GFR for participants with renal cell carcinoma must be ≥ 30 mL/min/1.73 m^2 by the Cockcroft-Gault formula
-
Serum total bilirubin ≤ 1.5 x ULN (< 3 x ULN for participants with Gilbert syndrome)
-
Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 x ULN;
- ≤ 5 x ULN for participants with hepatocellular carcinoma or liver metastases
Key Exclusion Criteria:
-
Active leptomeningeal disease or uncontrolled brain metastasis. Participants with equivocal findings or with confirmed brain metastases are eligible for enrollment provided they are asymptomatic and radiologically stable without the need for corticosteroid treatment for at least 4 weeks prior to the first dose of study drug(s)
-
Active autoimmune diseases or history of autoimmune diseases that may relapse or history of life-threatening toxicity related to prior immune therapy, with the following exceptions:
-
Controlled type 1 diabetes
-
Hypothyroidism (provided it is managed with hormone-replacement therapy only)
-
Controlled celiac disease
-
Skin diseases not requiring systemic treatment (eg, vitiligo, psoriasis, or alopecia)
-
Any other disease that is not expected to recur in the absence of external triggering factors (requires consultation with the medical monitor prior to enrollment)
-
Any active malignancy ≤ 2 years before the first dose of study drug(s) except for the specific cancer under investigation in this study and any locally recurring cancer that has been treated with curative intent (eg, resected basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the cervix or breast)
-
Any condition that required systemic treatment with either corticosteroids (> 10 mg daily of prednisone or equivalent) or other immunosuppressive medication ≤ 14 days before the first dose of study drug(s), with the following exceptions:
-
Adrenal replacement steroid (dose ≤ 10 mg daily of prednisone or equivalent)
-
Topical, ocular, intra-articular, intranasal, or inhalational corticosteroid with minimal systemic absorption
-
Short course (≤ 7 days) of corticosteroid prescribed prophylactically (eg, for contrast dye allergy) or for the treatment of a nonautoimmune condition (eg, delayed-type hypersensitivity reaction caused by contact allergen)
-
Any of the following cardiovascular risk factors:
-
Cardiac chest pain, defined as moderate pain that limits instrumental activities of daily living, ≤ 28 days before the first dose of study drug(s)
-
Pulmonary embolism ≤ 28 days before the first dose of study drug(s)
-
Any history of acute myocardial infarction ≤ 6 months before the first dose of study drug(s)
-
Heart failure that meets the New York Heart Association Classification III or IV ≤ 6 months before the first dose of study drug(s)
-
Any event of ventricular arrhythmia ≥ Grade 2 in severity ≤ 6 months before the first dose of study drug(s)
-
Any history of cerebrovascular accident ≤ 6 months before the first dose of study drug(s)
-
Uncontrolled hypertension: systolic pressure ≥ 140 mmHg or diastolic pressure ≥ 90 mmHg on repeated measurements that cannot be managed by standard antihypertension medications ≤ 28 days before the first dose of study drug(s)
-
Any episode of syncope or seizure ≤ 28 days before the first dose of study drug(s)
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | UPMC Hillman Cancer Center | Pittsburgh | Pennsylvania | United States | 15232 |
| 2 | Blacktown Hospital | Blacktown | New South Wales | Australia | 2146 |
| 3 | Princess Alexandra Hospital | Brisbane | Queensland | Australia | |
| 4 | Monash Health | Melbourne | Victoria | Australia | 3004 |
| 5 | Nucleus Network | Melbourne | Victoria | Australia | 3004 |
| 6 | Peter MacCallum Cancer Center | Melbourne | Victoria | Australia | |
| 7 | Linear Clinical Research | Perth | Western Australia | Australia | 6009 |
| 8 | Auckland City Hospital | Grafton | New Zealand | 1023 |
Sponsors and Collaborators
- BeiGene
Investigators
- Study Director: Study Director, BeiGene
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- BGB-A317-A445-101