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A Study of ES102 (OX40 Agonist) in Patients With Advanced Solid Tumors

An Open-label, Multicenter, Dose-escalation and Cohort Expansion Phase 1 Clinical Study of ES102 Administered as a Single Agent in Patients With Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04730843
Enrollment
18
Registered
2021-01-29
Start date
2021-04-01
Completion date
2024-03-01
Last updated
2025-06-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Solid Tumors, Neoplasms, Malignant Tumor

Keywords

ES102, solid tumor, phase 1, OX40, INBRX-106

Brief summary

The purpose of this study is to evaluate the safety, tolerance, Dose-Limiting Toxicity (DLT), Maximum tolerated dose (MTD) and/or Recommended Phase 2 Dose (RP2D) of ES102 (OX40 Agonist) administered as a single agent in patients with advanced solid tumors.

Interventions

DRUGES102

ES102 is administered via intravenous injection once every 21 days, every 21 days as a treatment cycle.

Sponsors

Elpiscience Biopharma, Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Ability to understand and the willingness to sign a written informed consent form. 2. Males or females aged ≥18 years. 3. Part A: Subjects with pathological or cytological diagnosed advanced solid tumor, whose disease has progressed despite standard therapies, or for whom no further standard therapy exists, or who is unsuitable for available standard therapies. Part B: Subjects with NSCLC, ESCC, NPC, GI or Cervical cancers, with advanced disease, which has progressed despite all standard therapies or for whom no standard therapy exists, or who is unsuitable for available standard therapies. All subjects with NSCLC have documentation of absence of tumor activating EGFR mutation and absence of ALK and ROS1 gene rearrangements. 4. PD-L1 by IHC result mandatory but any score allowed . 5. At least one measurable lesion is required (RECIST v1.1) 6. Adequate hematologic, coagulation, hepatic and renal function as defined per protocol. 7. Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1. 8. Estimated life expectancy, in the judgment of the investigator, of at least 12 weeks. 9. Male and female subjects of childbearing potential and their spouses must be willing to use feasible contraceptive methods considered effective by the investigator, from the time of signing informed consent and for the duration of study participation through 3 months, following the last dose of study drug. Postmenopausal women are considered to have no fertility potential only if menostasis lasts for at least 12 months.

Exclusion criteria

1. Prior exposure to OX40 agonists. 2. Known allergies to CHO-produced antibodies, which in the opinion of the Investigator suggests an increased potential for an adverse hypersensitivity to ES102. 3. Receipt of any anticancer investigational product or any approved anticancer drug(s) or biological product(s) within 4 weeks prior to the first dose of study drug with certain exceptions. 4. Patients with other malignancies within 2 years before screening shall be excluded in Part B. Some exceptions as defined per protocol apply. 5. Hematologic malignancies (e.g., ALL, AML, MDS, CLL, CML, NHL, Hodgkin's lymphoma and multiple myeloma) 6. Known or active primary central nervous system (CNS) tumors, leptomeningeal disease and CNS metastases. Exception: subjects with previously treated, asymptomatic, and clinically stable CNS metastases may be allowed study entry if certain criteria apply in Part B. 7. Grade ≥ 3 immune-related adverse events (irAEs) or irAE that lead to discontinuation of prior immunotherapy. Some exceptions as defined per protocol apply. 8. Active autoimmune disease or documented history of autoimmune disease that required systemic steroids or other immunosuppressive medications. Certain exceptions as defined in protocol apply. 9. Treatment with systemic immunosuppressive medications within 4 weeks prior to the first dose of study drug. Certain exceptions as defined in protocol apply. 10. History of hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection for Part A. Exceptions as defined in protocol for Part B will apply. 11. Active interstitial lung disease (ILD) or pneumonitis or a history of ILD or pneumonitis requiring treatment with steroids or other immunosuppressive medications. 12. Clinically significant cardiac condition, including myocardial infarction, uncontrolled angina, cerebrovascular accident, or other acute uncontrolled heart disease \< 6 months; left ventricular ejection fraction (LVEF) \< 50%; New York Heart Association (NYHA) Class III or IV congestive heart failure; or uncontrolled hypertension. 13. Active, hemodynamically significant pulmonary embolism within 3 months prior to the first dose of study drug. 14. Major surgery within 4 weeks prior to enrollment on this trial. 15. Systemic anti-infectious drug treatments within 4 weeks prior to the first dose of study drug. 16. Prior organ allograft transplantations or allogeneic peripheral blood stem cell (PBSC) or bone marrow (BM) transplantation. 17. Pregnant or nursing females. 18. Any known, documented, or suspected history of substance abuse that would preclude subject from participation, unless clinically justified (i.e., will not interfere with study participation and/or will not compromise trial objectives) per judgment of the Investigator and with approval of the Medical Monitor or Study Director. 19. The subject is inappropriate to participate in this study for other reasons in the judgment of the Investigator.

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 Dose (RP2D) of of ES1022-3 yearsThe MTD and/or RP2D of ES102 will be determined.
Number of participants with adverse events and serious adverse events of ES1022-3 yearsThe safety profile of ES102 will be assessed by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0.

Secondary

MeasureTime frameDescription
Immunogenicity of ES1022-3yearsFrequency of anti-drug antibodies (ADA) against ES102 will be determined.
Area under the serum concentration time curve (AUC) of ES1022-3 yearsArea under the serum concentration time curve (AUC) of ES102 will be determined.
Trough observed serum concentration (Ctrough) of ES1022-3yearsTrough observed serum concentration (Ctrough) of ES102 will be determined.
Anti-tumor activity of ES1022-3yearsTumor response will be determined by the revised Response Evaluation Criteria in Solid Tumors version 1.1 (RECISTv1.1).
Maximum observed serum concentration (Cmax) of ES1022-3 yearsMaximum observed serum concentration (Cmax) of ES102 will be determined.
Time to Cmax (Tmax) of ES1022-3yearsTime to Cmax (Tmax) of ES102 will be determined.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026