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A Study of ES102 (OX40 Agonist) in Combination With JS001 in Patients With Advanced Solid Tumors

An Open-label, Multicenter, Dose-escalation and Cohort Expansion Phase 1 Clinical Study of ES102 in Combination With JS001 in Patients With Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04991506
Enrollment
30
Registered
2021-08-05
Start date
2021-10-15
Completion date
2024-05-17
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 Tumor, Neoplasms, Malignant Tumor

Keywords

ES102, JS001, OX40, PD-1, Solid Tumors, Phase 1, 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) in combination with JS001 (anti-PD-1 checkpoint inhibitor) in patients with advanced solid tumors.

Interventions

DRUGES102

The active ingredient of ES102 is a recombinant, humanized, hexavalent IgG antibody that targets the human OX40 receptor (TNFRSF4)

DRUGJS001

JS001 is administered via intravenous injection once every 21 days, every 21 days as a treatment cycle.

Sponsors

Shanghai Junshi Bioscience Co., Ltd.
CollaboratorOTHER
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.Males or females aged ≥18 years. * 2.Ability to understand and the willingness to sign a written informed consent form. * 3.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 and at least has progressed after receiving first line therapy. * 4.PD-L1 by IHC: Parts 1 and Part 2 D2-D3: IHC result mandatory but any score allowed. Part 2 D1: Tumor Proportion Score (TPS) ≥ 1%. * 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.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. * 3.Receipt of non-CNS adjuvant radiation therapy within 1 week prior to the first dose, receipt of radiation therapy within 2 weeks or with radiation pneumonia, have not recovered from radiation-related toxicity or still require hormonal treatment for radiation-related toxicity. * 4.Known allergies to CHO-produced antibodies, which in the opinion of the Investigator suggests an increased potential for an adverse hypersensitivity to ES102. * 5.Subjects with allergic reactions to the active ingredients of JS001 or any of the excipients. * 6.Treatment with systemic immunosuppressive medications within 4 weeks prior to the first dose of study drug. Certain exceptions as defined in protocol apply. * 7.Receipt of live viral vaccine treatment within 4 weeks prior to the first dose of the study drug. * 8.Prior organ allograft transplantations or allogeneic peripheral blood stem cell (PBSC) or bone marrow (BM) transplantation. * 9.Subjects with primary or metastatic brain or meningeal tumors. * 10.Grade ≥ 3 immune-related adverse events (irAEs) or irAE that lead to discontinuation of prior immunotherapy. Some exceptions as defined per protocol apply. * 11.Subject has not recovered from all AEs of previous anticancer therapies to baseline or ≤ Grade 1 per CTCAE v5.0 before the first dose of study drug. Certain exceptions as defined in protocol apply. * 12.Hematologic malignancies. * 13.Receipt of treatment with G-CSF, GM-CSF, Thrombopoietic drugs or EPO within 14 days prior to the first dose of the study drug. * 14.Patients with other malignancies within 2 years before screening shall be excluded in Part B. Some exceptions as defined per protocol apply. * 15.Active autoimmune disease or documented history of autoimmune disease that required systemic steroids or other immunosuppressive medications. Certain exceptions as defined in protocol apply. * 16.Active interstitial lung disease (ILD) or pneumonitis or a history of ILD or pneumonitis requiring treatment with steroids or other immunosuppressive medications. * 17.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. * 18.History of pulmonary embolism within 12 weeks prior to the first dose of study drug administration. * 19.Major surgery within 4 weeks prior to enrollment on this trial. * 20.History of hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection for Part 1. Exceptions as defined in protocol for Part 2 will apply. * 21.Receiving the systemic anti-infectious drug treatments within 4 weeks prior to the first dose of study drug. * 22.Pregnant or nursing females. * 23.Any known, documented, or suspected history of substance abuse that would preclude subject from participation, certain exceptions as defined in protocol apply. * 24.The subject is inappropriate to participate in this study for other reasons in the judgment of the Investigator.

Design outcomes

Primary

MeasureTime frameDescription
MTD2-4 yearsMaximum Tolerated Dose (MTD) of ES102 in combination with JS001
Frequency and severity of adverse events of ES102 in combination with JS0012-4 yearsThe safety profile of ES102 in combination with JS001 will be assessed by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 5.0.
RP2D2-4 yearsRecommended Phase 2 Dose (RP2D) of ES102 in combination with JS001

Secondary

MeasureTime frameDescription
Time to Cmax (Tmax) of ES102 in combination with JS0012-4 yearsTime to Cmax (Tmax) of ES102 in combination with JS001 will be determined.
Area under the serum concentration time curve (AUC) of ES102 in combination with JS0012-4 yearsArea under the serum concentration time curve (AUC) of ES102 in combination with JS001 will be determined.
Anti-tumor activity of ES102 in combination with JS0012-4 yearsTumor response will be determined by the revised Response Evaluation Criteria in Solid Tumors version 1.1 (RECISTv1.1).
Immunogenicity of ES102 in combination with JS0012-4 yearsFrequency of anti-drug antibodies (ADA) against ES102 in combination with JS001 will be determined.
Maximum observed serum concentration of ES102 in combination with JS0012-4 yearsMaximum observed serum concentration of ES102 in combination with JS001 will be determined.
Trough observed serum concentration (Ctrough) of ES102 in combination with JS0012-4 yearsTrough observed serum concentration (Ctrough) of ES102 in combination with JS001 will be determined.

Countries

China

Outcome results

None listed

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