A Study of AK131 in Patients With Advanced Solid Tumors

Official title

A Phase Ia/Ib, Multicenter and Open-label Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Anti-tumor Activity of Anti-PD-1 and CD73 Bispecific Antibody AK131 in Patients With Advanced Solid Tumors

Overview

This is a phase Ia/Ib study to evaluate the safety, tolerability, pharmacokinetics, and anti-tumor activity of AK131 in advanced solid tumor patients

Interventions

• Drug AK131
  AK131 is an anti-PD-1 and CD73 bispecific antibody

Primary outcome measures

• Number of subjects with dose limiting toxicities (DLTs) [Time frame: During the first 4 weeks]
• Number of subjects with adverse events (AEs) [Time frame: From the time of informed consent signed through 90 days after the last dose of study drug]

Secondary outcome measures (8)

• Serum PK concentration of AK131 [Time frame: From first dose of study drug through 30 days after last dose of study drug]
• Number of subjects who develop detectable anti-drug antibodies (ADAs) [Time frame: From first dose of study drug through 30 days after last dose of study drug]
• Objective response rate (ORR) [Time frame: Up to approximately 2 years]
• Disease control rate (DCR) [Time frame: Up to approximately 2 years]
• Progression-free survival (PFS) [Time frame: Up to approximately 2 years]
• Time to response (TTR) [Time frame: Up to approximately 2 years]
• Duration of Response (DoR) [Time frame: Up to approximately 2 years]
• Overall survival (OS) [Time frame: Up to approximately 2 years]

Eligibility criteria

Inclusion criteria

• Written and signed informed consent.
• Eastern Cooperative Oncology Group (ECOG) Performance Score of 0 or 1.
• Life expectancy ≥3 months.
• Histologically or cytologically documented unresectable advanced or metastatic malignant tumor that has failed or intolerant of standard therapy, or for which no effective standard therapy is available.
• Subject must have at least one measurable lesion according to RECIST Version1.1.
• Adequate organ function.
• Female subjects of childbearing potential and male subjects with female partners of childbearing potential must agree to use effective barrier methods of contraception during the study and for 120 days after last dose of study drug.

Exclusion criteria

• Any malignancy other than the disease under study within the past 3 years except for radically cured local cancers.
• Being involved in another clinical study, except for observational clinical studies or follow-up period of interventional studies.
• Receipt of any anti-CD73 treatment.
• Anticancer therapy within 4 weeks prior to the first dose of investigational product.
• Experienced a toxicity that led to permanent discontinuation of prior immunotherapy.
• Subjects with spinal cord compression or active brain metastases, except for subjects with untreated and asymptomatic brain metastases or with stable brain metastases after treatment.
• Subjects with pleural effusion, pericardial effusion, or ascites requiring repeated drainage.
• Subjects whose imaging shows that the tumor has invaded important blood vessels or the investigator judges that the tumor is very likely to invade important blood vessels and cause fatal bleeding during the study.
• Toxicities of prior anticancer therapy have not resolved to ≤ Grade 1.
• Patients with clinically significant cardio-cerebrovascular disease.
• Active autoimmune diseases or history of autoimmune diseases that may relapse.
• History of interstitial lung disease or noninfectious pneumonitis.
• Major surgery, trauma,unhealed wound, ulcer or fracture within 4 weeks prior to first dose of investigational product.
• Any condition that required systemic treatment with corticosteroids or other immunosuppressive agents within 14 days prior to the first dose of investigational product.
• Receipt of live attenuated vaccines within 4 weeks prior to the first dose of investigational product.
• Known allergy or reaction to any component of the AK131 formulation.
• Previous organ transplantation or allogeneic hematopoietic stem cell transplantation.
• Any other conditions that, in the opinion of the Investigator, would interfere with evaluation of the investigational product or interpretation of subject safety or study results.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

N/A

Model

Sequential

Masking

Open label

Primary purpose

Treatment

Study locations

China · 1 center

• Jinming Yu — Jinan

Identifiers

NCT: NCT06166888 · AK131-101

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗