A Clinical Study of SHR-1316 (SC) Combined With Carboplatin and Etoposide as First-line Treatment for Extensive Stage Small Cell Lung Cancer

An Open Label, Multicenter Phase I Clinical Study on the Pharmacokinetics, Safety, Tolerability, and Efficacy of SHR-1316 (SC) Combined With Carboplatin and Etoposide in First-line Treatment of Extensive Stage Small Cell Lung Cancer

This study is a multicenter, open label phase I clinical trial aimed at evaluating the pharmacokinetics, tolerability, safety and immunogenicity of SHR-1316 (sc) subcutaneous administration combined with carboplatin and etoposide as first-line treatment for extensive stage small cell lung cancer, and to observe the initial anti-tumor efficacy.

Study Overview

• Status: Active, not recruiting
• Conditions: Widespread Small Cell Lung Cancer
• Intervention / Treatment: Drug: SHR-1316 (sc) Injection; Drug: SHR-1316 Injection; Drug: Carboplatin Injection; Drug: Etoposide Injection

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Phase 1

Contacts and Locations

Study Locations

• China
  • Jiangxi
    • Nanchang, Jiangxi, China, 330200
      • The First Affiliated Hospital of Nanchang University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Patients with extensive stage small cell lung cancer confirmed by histology or cytology; Has not received first-line systemic therapy or immune checkpoint inhibitor treatment for ES-SCLC in the past.
2. ECOG physical fitness score 0-1 points.
3. According to RECIST v1.1, there must be at least one measurable tumor lesion.
4. Expected survival time ≥ 12 weeks.
5. Having sufficient bone marrow and organ function.
6. Participants must give informed consent to this study prior to the trial and voluntarily sign a written informed consent form.

Exclusion Criteria

1. Patients with central nervous system or meningeal metastases.
2. Spinal cord compression that cannot be cured by surgery and/or radiotherapy cannot be included in the study.
3. Patients diagnosed by researchers with uncontrollable tumor related pain.
4. Symptomatic third space effusion requires repeated drainage, such as pericardial effusion, pleural effusion, and abdominal effusion that cannot be controlled by pumping or other treatments.
5. Having undergone major organ surgery (excluding biopsy) or significant trauma within 4 weeks prior to the first use of the investigational drug, or requiring elective surgery during the trial period.
6. History of idiopathic pulmonary fibrosis, organizing pneumonia (such as bronchiolitis obliterans), drug-induced pneumonia, radiation pneumonitis requiring steroid treatment, or clinically significant active pneumonia at screening; Or other moderate to severe lung diseases that seriously affect lung function (patients with a history of radiation pneumonitis (fibrosis) in the radiation area may participate in this study).
7. Severe infections, including but not limited to bacteremia requiring hospitalization and severe pneumonia, were present within 4 weeks prior to the first medication; Within 2 weeks prior to the first medication, there is an active infection with CTCAE ≥ 2 that requires treatment with systemic antibiotics.
8. Individuals with active pulmonary tuberculosis infection detected through medical history or CT examination within the year prior to enrollment, or those with a history of active pulmonary tuberculosis infection more than one year ago but without formal treatment.
9. History of immunodeficiency, including HIV positive, other acquired or congenital immunodeficiency diseases, or organ transplant recipients.
10. Known to have alcohol or drug dependence; Individuals with mental disorders or poor compliance; Pregnant or lactating women; Or the researcher believes that there is a history of other serious systemic diseases or other reasons that make it unsuitable to participate in this clinical study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: SHR-1316 (sc) Dose A Group	Drug: SHR-1316 (sc) Injection; SHR-1316 (sc) injection.; Drug: SHR-1316 Injection; SHR-1316 injection.; Drug: Carboplatin Injection; Carboplatin injection.; Drug: Etoposide Injection; Etoposide injection.
Experimental: SHR-1316 (sc) Dose B Group	Drug: SHR-1316 (sc) Injection; SHR-1316 (sc) injection.; Drug: SHR-1316 Injection; SHR-1316 injection.; Drug: Carboplatin Injection; Carboplatin injection.; Drug: Etoposide Injection; Etoposide injection.
Experimental: SHR-1316 (sc) Dose C Group	Drug: SHR-1316 (sc) Injection; SHR-1316 (sc) injection.; Drug: SHR-1316 Injection; SHR-1316 injection.; Drug: Carboplatin Injection; Carboplatin injection.; Drug: Etoposide Injection; Etoposide injection.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
SHR-1316 serum trough concentration (Ctrough)	Day1 pre-dose to Day28.
Area under the concentration curve from time 0 to 21 days for SHR-1316 (sc) (AUC0-21d)	Day1 pre-dose to Day21.
Area under the concentration curve from time 0 to 28 days for SHR-1316 (sc) (AUC0-28d)	Day1 pre-dose to Day28.

Secondary Outcome Measures

Outcome Measure	Time Frame
Maximum Concentration of SHR-1316 (sc) (Cmax)	Day1 pre-dose to Day28.
Time to maximum plasma concentration (Tmax)	Day1 pre-dose to Day28.
Terminal half-life (t1/2)	Day1 pre-dose to Day28.
Incidence and severity of adverse events (AEs)	About 2 years.
Objective Response Rate (ORR)	About 2 years.
Duration of Relief (DoR)	About 1.5 years.
Disease Control Rate (DCR)	About 2 years.
Progression-free Survival (PFS)	About 2 years.
Overall Survival (OS)	About 3 years.

Collaborators and Investigators

• Sponsor: Suzhou Suncadia Biopharmaceuticals Co., Ltd.

Study record dates

Study Major Dates

• Study Start (Actual): June 16, 2025
• Primary Completion (Estimated): September 1, 2027
• Study Completion (Estimated): September 1, 2028

Study Registration Dates

• First Submitted: May 29, 2025
• First Submitted That Met QC Criteria: May 29, 2025
• First Posted (Actual): June 6, 2025

Study Record Updates

• Last Update Posted (Actual): June 30, 2026
• Last Update Submitted That Met QC Criteria: June 25, 2026
• Last Verified: June 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Respiratory Tract Diseases; Lung Diseases; Respiratory Tract Neoplasms; Thoracic Neoplasms; Carcinoma, Bronchogenic; Bronchial Neoplasms; Lung Neoplasms; Small Cell Lung Carcinoma; Organic Chemicals; Therapeutics; Drug Administration Routes; Drug Therapy; Hydrocarbons; Hydrocarbons, Cyclic; Carbohydrates; Podophyllotoxin; Tetrahydronaphthalenes; Naphthalenes; Polycyclic Aromatic Hydrocarbons; Hydrocarbons, Aromatic; Polycyclic Compounds; Glucosides; Glycosides; Coordination Complexes; Etoposide; Carboplatin; Injections
• Other Study ID Numbers: SHR-1316(sc)-101

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No