Skip to content

A Single-arm, Open-label, Phase II Study to Evaluate Efficacy,, Safety and Pharmacokinetics of HLX10 + Chemotherapy (Carboplatin- Etoposide) in Patients with Extensive Stage Small Cell Lung Cancer (ES-SCLC)

A Single-arm, Open-label, Phase II Study to Evaluate Clinical Efficacy, Safety and Pharmacokinetics of HLX10 (Recombinant Humanized Anti-PD-1 Monoclonal Antibody Injection) in Combination with Chemotherapy (Carboplatin-Etoposide) in Previously Untreated Japanese Patients with Extensive Stage Small Cell Lung Cancer (ES-SCLC)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071240133
Enrollment
26
Registered
2025-03-18
Start date
2025-05-19
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Extensive Stage Small Cell Lung Cancer

Interventions

A combination of HLX10 + carboplatin + etoposide shall be administered in a 3-week treatment cycle
carboplatin and etoposide are administered for a maximum of 4 cycles. HLX10 is 4.5 mg/kg, administered on Day 1 of each cycle, once every 3 weeks .Etoposide is 100 mg/m2, IV infusion, on Days 1, 2, an

Sponsors

Hatakeyama Yu
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Voluntary participation in clinical studies; fully understand, be informed about the study and have signed the informed consent form (ICF) ; willingness to follow and ability to complete all trial procedures. 2.Male or female aged >= 18 years at the time of signing the ICF. 3.Histologically or cytologically diagnosed with ES-SCLC (according to the Veterans Administration Lung Study Group staging system). 4.No prior systemic therapy for ES-SCLC (including systemic chemotherapy, molecular targeted therapy, biological therapy, and other investigational therapies, etc.). 5.Patients who have received chemoradiotherapy for previous limited stage SCLC must be treated with curative intent and have a treatment-free interval of at least 6 months from the last course of chemotherapy, radiotherapy, or chemoradiotherapy to the diagnosis of extensive stage SCLC. 6.At least one measurable lesion as assessed by the IRRC according to RECIST 1.1 within 4 weeks prior to first dose. . 7.Prior antineoplastic therapy must have been >= 2 weeks from the first dose in this study with treatment-related AEs resolved to NCI-CTCAE Grade == 12 weeks. 10.Subjects with prior denosumab use that can and agree to switch to bisphosphonate therapy for bone metastases starting prior to first dose and throughout treatment.

Exclusion criteria

Exclusion criteria: 1.Histologically or cytologically confirmed mixed SCLC. 2.Other active malignancies within 5 years or at the same time. Localized tumors that have been cured, such as basal cell carcinoma, squamous-cell skin cancer, superficial bladder cancer, prostate carcinoma in situ, cervical cancer in situ and breast cancer in situ are acceptable. 3.Patients who are preparing for or have received an organ or bone marrow transplant. 4.Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures (once monthly or more frequently). Patients with indwelling catheters are allowed regardless of drainage frequency. 5.Patients with known or documented active CNS metastases and/or carcinomatous meningitis at screening. However, the following subjects are allowed to be enrolled: 1) Subjects with asymptomatic brain metastases (i.e., no progressive central nervous system symptoms caused by brain metastases, no requirement for corticosteroids, and lesion size == 450 ms for males and >= 470 ms for females) (QTc intervals are calculated by Fridericia's formula). 8.Class III to IV cardiac insufficiency according to NYHA classification or a left ventricular ejection fraction 1.5 mmol/L ionized calcium or calcium > 12 mg/dL or corrected serum calcium > ULN). 10.Subject with peripheral neuropathy >=Grade 2 by CTCAE. 11.Human immunodeficiency virus (HIV) infection, positive test for HIV antibody. 12.Active or latent pulmonary tuberculosis. 13.Subjects with previous and concurrent interstitial pneumonia, pneumoconiosis, radiation pneumonitis, drug-related pneumonitis and severe impaired pulmonary function that may interfere with the detection and management of suspected drug-related pulmonary toxicity, as judged by the investigator. 14.Hepatitis B (positive test for HBsAg or HBcAb and positive test for HBV-DNA) or Hepatitis C (positive tests for HCV antibody and HCV-RNA). Hepatitis B and C coinfection (positive test for HBsAg or HBcAb and positive test for HCV antibody). 15.Known active or suspected autoimmune diseases. Subjects in a stable state with no need for systemic immunosuppressant therapy are allowed to enroll. 16.Have received treatment with live vaccines within 28 days prior to the first administration. Subjects may receive inactivated viral vaccines for seasonal influenza but may not receive live attenuated influenza vaccines via intranasal route. 17.Subjects requiring treatment with systemic corticosteroids (> 10 mg/day prednisone efficacy dose) or other immunosuppressive drugs within 14 days prior to the first dose or during the study. However, in the absence

Design outcomes

Primary

MeasureTime frame
Response (CR or PR) rate at week 24

Secondary

MeasureTime frame
- Overall survival (OS) - 12 - month OS rate - PFS - 6 -month PFS rate - 12 - month PFS rate - Objective response rate (ORR) - Response (CR or PR) rate at week 24 - Response (CR or PR) rate at week 48 - Duration of response (DOR) - The proportion of patients with a response lasting at least 24 weeks, and 48 weeks - Adverse events (AEs) (including serious adverse events (SAEs)), laboratory tests (routine blood test, blood chemistry, coagulation function, urinalysis, myocardial function and thyroid function), 12-lead electrocardiogram (12-lead ECG), vital signs, and physical examination, etc. - Observed PK concentrations and PK parameters of HLX10 in serum - HLX10 anti-drug antibody (ADA) positive rate - Quality of life assessment

Contacts

Public ContactYu Hatakeyama

CMIC Co., Ltd.

ClinicalTrialInformation@cmic.co.jp+81-3-6779-8000

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026