Phase 1, Dose Escalation and Dose Expansion Study of AK117, a CD47-targeting Antibody

• Status: Not yet recruiting
• Trial end date: 2023-09-01
• Target enrollment: 0
• Participant gender: All

Summary

This is a first-in-human, Phase 1, multicenter, open label, single arm, integrated 3-part dose escalation and dose expansion study designed to evaluate the safety, tolerability, PK, immunogenicity, pharmacodynamics, and preliminary antitumor activity of AK117 administered intravenously to adult subjects with relapsed/refractory advanced or metastatic solid tumors or lymphomas.

• Phase: Phase 1
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Akeso
• Collaborator: Akesobio Australia Pty Ltd

Criteria

Inclusion Criteria:

All Subjects

1. Able to provide written and signed informed consent and any locally required authorization obtained from the subject/legal representative, which must be obtained prior to performing any protocol related procedures, including screening evaluations.

2. Men or women aged ≥18 years at the time of study entry.

3. Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0 or 1.

4. Life expectancy ≥12 weeks.

5. Female subjects are eligible to participate if at least 1 of following conditions applies:For a woman of childbearing potential (WOCBP) who is sexually active with a non sterilized male partner: must have a negative pregnancy test at the Screening Visit (within 3 days prior to the first dose of the investigational product), should not be lactating, and must agree to use 2 methods of contraception up to 120 days after the last dose of investigational product; Is a woman of non childbearing potential.

6. Non sterilized male subjects who are sexually active with female partners of childbearing potential must agree to use contraception up to 120 days after the last dose of investigational product.

7. Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures as specified in the protocol.

8. Willing to receive blood transfusion(s) when so advised by the investigator. Subjects with Solid Tumors (Parts A, B, and C)

9. Subjects must have a histologically or cytologically confirmed advanced solid tumor that is refractory or relapsed to the current standard therapies, or for which no effective standard therapy is available.

10. Subject must have at least 1 measurable lesion according to RECIST v1.1. A previously irradiated lesion can be considered a target lesion if the lesion is well defined, measurable per RECIST v1.1, and there is objective evidence of interval increase in size since radiotherapy.

11. Adequate organ function. Subjects with Lymphomas (Part B cohort expansion and Part C)

12. Subjects must have histologically confirmed non-Hodgkin lymphoma (NHL), which may include transformed lymphoma, relapsed or refractory to autologous hematopoietic stem cell transplantation, or at least 2 lines of prior chemotherapy.

13. Subjects must have disease that is measurable or assessable for response as per Lugano Classification 2014.

14. Adequate organ function.

Exclusion Criteria:

All Subjects

1. Concurrent enrollment in another clinical study, unless it is an observational (non interventional) clinical study or the follow up period of an interventional study.

2. Prior malignancy active within the previous 3 years except for the tumor for which a subject is enrolled in the study, and locally curable cancers that have been apparently cured, such as basal cell skin cancer, or carcinoma in situ of the cervix or breast.

3. Active brain/central nervous system (CNS) metastases (defined as neurologically stable for <4 weeks and/or symptomatic and/or requiring treatment with steroids and/or leptomeningeal disease).

4. Active infections (including tuberculosis) requiring systemic antibacterial, antifungal, or antiviral therapy within 14 days prior to the first dose of investigational product.

5. Known history of testing positive for human immunodeficiency virus (HIV) or known active acquired immunodeficiency syndrome.

6. Known active hepatitis B or C infections (known positive hepatitis B surface antigen [HBsAg] result or positive hepatitis C virus [HCV] antibody with detectable HCV ribonucleic acid [RNA] results).

7. Active or prior documented autoimmune disease that may relapse.

8. History of interstitial lung disease or noninfectious pneumonitis, except for those induced by radiation therapies.

9. History of hemolytic anemia of any cause (including Evans syndrome) within 3 months prior to the first dose of investigational product.

10. History of defects in RBC production, or hemoglobin production or metabolism (eg, glucose 6 phosphate dehydrogenase deficiency, thalassemia, sickle cell disease, hereditary spherocytosis).

11. Patients with clinically significant cardio cerebrovascular disease.

12. Unresolved toxicities from prior anticancer therapy, defined as having not resolved to NCI CTCAE v5.0 Grade 0 or 1, or to levels dictated in the eligibility criteria with the exception of toxicities not considered a safety risk.

13. History of hemophagocytic lymphohistiocytosis.

14. History of severe hypersensitivity reactions to other mAbs.

15. History of organ transplantation.

16. Known allergy or reaction to any component of the investigational product formulation.

17. Receipt of the following treatments or procedures: Any anticancer therapy targeting the CD47/SIRPα signaling axis; Anticancer small molecule targeted agent within 2 weeks prior to the first dose of investigational product; Anticancer mAbs within 6 weeks prior to the first dose of investigational product or 5 half lives (whichever is lesser); Other anticancer therapy (eg, chemotherapy, radiotherapy, etc) within 4 weeks prior to the first dose of investigational product.

18. Subjects with a condition requiring systemic treatment with either corticosteroids (>10 mg daily doses of prednisone or equivalent) or other immunosuppressive medications within 14 days prior to the first dose of investigational product.

19. Receipt of live attenuated vaccines within 4 weeks prior to the first dose of investigational product.