Iparomlimab and Tuvonralimab Plus Chemotherapy Before Surgery for Stage III Lung Cancer
A Study of Iparomlimab and Tuvonralimab in Combination With Chemotherapy as Neoadjuvant Therapy for Resectable Stage III-N2b Non-Small Cell Lung Cancer
1 other identifier
interventional
28
1 country
1
Brief Summary
Background: For patients with resectable stage III-N2b non-small cell lung cancer (NSCLC), optimal perioperative treatment strategies remain an area of active investigation. Iparomlimab and tuvonralimab (QL1706) is a novel bifunctional antibody combination targeting PD-1 and CTLA-4, designed to enhance anti-tumor immunity. Objective: This phase II, single-arm, multicenter study aims to evaluate the efficacy and safety of neoadjuvant iparomlimab and tuvonralimab (QL1706) in combination with platinum-based chemotherapy in patients with resectable stage III-N2b NSCLC. Study Design and Methods: A total of 28 patients will be enrolled across approximately 4 centers in China. Eligible patients (aged ≥18 years, ECOG PS 0-1) with histologically or cytologically confirmed, resectable stage III-N2b NSCLC (AJCC 9th edition) will receive three cycles of neoadjuvant therapy every three weeks. Patients with non-squamous carcinoma will receive iparomlimab and tuvonralimab (5 mg/kg) plus pemetrexed (500 mg/m²) and carboplatin (AUC 5). Patients with squamous carcinoma will receive iparomlimab and tuvonralimab (5 mg/kg) plus nab-paclitaxel (260 mg/m²) and carboplatin (AUC 5). Surgical resection will be performed within 6 weeks following completion of neoadjuvant therapy. Subsequent adjuvant treatment is at the discretion of the investigator. Key Eligibility Criteria: Key inclusion criteria include pathologically confirmed T\<sub\>any\</sub\>N2b disease with mediastinal nodal status confirmed by EBUS/EUS or mediastinoscopy, and the determination by multidisciplinary team (MDT) assessment that the tumor is completely resectable (R0). Key exclusion criteria include known EGFR or ALK positive mutations, prior anti-cancer therapy for current lung cancer, active autoimmune disease, or uncontrolled hepatitis B or C. Study Endpoints: The primary endpoint is the pathological complete response (pCR) rate. Secondary endpoints include major pathological response (MPR) rate, objective response rate (ORR), R0 resection rate, event-free survival (EFS), overall survival (OS), impact on surgical outcomes, and safety. Exploratory endpoints involve biomarker analysis including ctDNA. Sample Size Rationale: Assuming a null hypothesis pCR rate (P0) of 8.8% (based on historical data) and an expected pCR rate (P1) of 28%, with a two-sided α of 5% and 80% power, 24 patients are required. Factoring in a 15% inoperable rate, the total sample size is 28 patients. Statistical Analysis: The primary endpoint, pCR rate, and other binary endpoints will be summarized with frequencies, percentages, and their 95% confidence intervals calculated using the Clopper-Pearson method. Time-to-event endpoints (EFS, OS) will be analyzed using the Kaplan-Meier method. Safety data will be summarized descriptively. Clinical Trial Information: This study is sponsored by The Second Affiliated Hospital of Air Force Medical University, PLA. The Principal Investigator is Dr. Yan Xiaolong.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started May 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 16, 2026
CompletedFirst Posted
Study publicly available on registry
April 20, 2026
CompletedStudy Start
First participant enrolled
May 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2029
April 20, 2026
April 1, 2026
3 years
March 16, 2026
April 15, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Pathological Complete Response (pCR) rate
The percentage of subjects with no residual viable tumor cells in the resected primary tumor bed and lymph nodes after lung cancer resection.
At the time of surgery, approximately 9-15 weeks after enrollment
Secondary Outcomes (11)
Major Pathological Response (MPR) rate
At the time of surgery, approximately 9-15 weeks after enrollment
Objective Response Rate (ORR)
From enrollment to pre-surgery assessment, approximately 9-15 weeks
R0 Resection Rate
At the time of surgery
Event-Free Survival (EFS)
From enrollment to up to 2 years post-surgery
Overall Survival (OS)
From enrollment to up to 2 years post-surgery or death
- +6 more secondary outcomes
Study Arms (1)
Iparomlimab and Tuvonralimab plus Chemotherapy
EXPERIMENTALIparomlimab and Tuvonralimab combined with Platinum-Based Chemotherapy (Pemetrexed/Carboplatin for Non-squamous; Nab-paclitaxel/Carboplatin for Squamous)
Interventions
Participants receive neoadjuvant treatment with Iparomlimab and Tuvonralimab in combination with platinum-based chemotherapy for three cycles prior to surgical resection. Dosing Regimen: For Non-squamous Carcinoma: Iparomlimab and Tuvonralimab: 5 mg/kg, intravenous infusion, Day 1 Pemetrexed: 500 mg/m², intravenous infusion, Day 1 Carboplatin: AUC 5, intravenous infusion, Day 1 Cycle length: 21 days (every 3 weeks) Total treatment: 3 cycles For Squamous Carcinoma: Iparomlimab and Tuvonralimab: 5 mg/kg, intravenous infusion, Day 1 Nab-paclitaxel: 260 mg/m², intravenous infusion, Day 1 Carboplatin: AUC 5, intravenous infusion, Day 1 Cycle length: 21 days (every 3 weeks) Total treatment: 3 cycles After completion of neoadjuvant therapy, participants undergo surgical resection within 6 weeks. Adjuvant treatment following surgery is administered at the discretion of the investigator and is not specified by this protocol.
Eligibility Criteria
You may qualify if:
- Voluntarily join the study and sign the Informed Consent Form (ICF).
- ≥18 years old, male or female.
- Histologically or cytologically confirmed T\<sub\>any\</sub\>N2b stage NSCLC (American Joint Committee on Cancer \[AJCC\] 9th edition). Lymph node status must be confirmed by endobronchial ultrasound (EBUS/EUS) or mediastinoscopy for mediastinal lymph nodes. For left-sided stations 5/6 lymph nodes, parasternal mediastinoscopy is recommended to confirm lymph node status; if mediastinoscopy is not performed, station 5/6 lymph node status is diagnosed based on imaging diagnostic criteria.
- Based on MDT assessment (which must include a thoracic surgeon specialized in oncology), the primary NSCLC is deemed to be completely resectable (R0).
- At least one measurable lesion as assessed by the investigator per RECIST v1.1.
- Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1.
- Adequate organ function meeting the following requirements (no use of any blood components, cell growth factors, etc., within 14 days before the first dose):
- Absolute neutrophil count ≥1.5×10⁹/L;
- Platelet count ≥100×10⁹/L;
- Hemoglobin ≥90 g/L;
- Serum creatinine ≤1.5×upper limit of normal (ULN) or creatinine clearance (CLcr) ≥40 mL/min calculated by the Cockcroft-Gault formula;
- Total bilirubin ≤1.5×ULN (patients with Gilbert's syndrome may have ≤3×ULN);
- AST and ALT ≤3×ULN;
- International normalized ratio (INR) or activated partial thromboplastin time (APTT) ≤1.5×ULN, unless the subject is receiving anticoagulant therapy;
- Left ventricular ejection fraction (LVEF) ≥50%.
- +1 more criteria
You may not qualify if:
- Known presence of EGFR or ALK positive mutations.
- History of or concurrent other malignancy within the past 5 years (excluding adequately treated cervical carcinoma in situ, basal cell or squamous cell skin cancer, localized prostate cancer after radical surgery, ductal carcinoma in situ after radical surgery).
- Prior receipt of any anti-tumor therapy for the current lung cancer (e.g., radiotherapy, chemotherapy, targeted therapy, ablation, or other systemic or local anti-tumor therapies).
- Current use of immunosuppressants or systemic hormone therapy for immunosuppressive purposes (dose \>10 mg/day prednisone or equivalent) and continued use within 2 weeks before enrollment (Note: Inhaled or topical corticosteroids and adrenal replacement steroids are permitted in the absence of active autoimmune disease).
- Any active autoimmune disease or history of autoimmune disease, including but not limited to: autoimmune hepatitis, interstitial pneumonia, pulmonary fibrosis, uveitis, enteritis, hepatitis, hypophysitis, vasculitis, nephritis, hyperthyroidism, hypothyroidism.
- Subjects with hypothyroidism controlled by hormone replacement therapy alone are eligible;
- Subjects with skin diseases not requiring systemic treatment such as vitiligo, psoriasis, alopecia, type 1 diabetes, or childhood asthma that has completely resolved and requires no intervention in adulthood are eligible;
- Patients with asthma requiring medical intervention with steroids are not eligible.
- History of allogeneic hematopoietic stem cell transplantation or organ transplantation (except corneal transplantation).
- Congenital or acquired immunodeficiency (e.g., HIV-infected individuals).
- Uncontrolled active hepatitis B (defined as positive hepatitis B surface antigen \[HBsAg\] test at screening with concurrent HBV-DNA test value above the upper limit of normal of the research center's laboratory; subjects with HBV-DNA \<500 IU/mL measured within 28 days before study drug administration and who have received standard local antiviral therapy for at least 4 weeks and are willing to continue antiviral therapy during the study may be enrolled). Subjects with active hepatitis C (defined as positive hepatitis C virus antibody \[HCsAb\] test at screening and positive HCV-RNA).
- History of severe allergic reactions to other monoclonal antibodies.
- Vaccination with live vaccine within 30 days before the first dose of study treatment (continuing until 90 days after the last dose of study treatment). Note: Live vaccines include but are not limited to measles, mumps, rubella, varicella/zoster (chickenpox), yellow fever, rabies, BCG, and typhoid vaccines. Inactivated seasonal influenza vaccines, inactivated COVID-19 vaccines, etc., are permitted.
- Clinically significant cardiovascular or cerebrovascular diseases, including but not limited to:
- Myocardial infarction or unstable angina pectoris within 6 months before the first dose;
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Tang-Du Hospitallead
Study Sites (1)
Tangdu Hospitial
Xi'an, Shannxi, China
Related Publications (6)
Provencio M, Nadal E, Gonzalez-Larriba JL, Martinez-Marti A, Bernabe R, Bosch-Barrera J, Casal-Rubio J, Calvo V, Insa A, Ponce S, Reguart N, de Castro J, Mosquera J, Cobo M, Aguilar A, Lopez Vivanco G, Camps C, Lopez-Castro R, Moran T, Barneto I, Rodriguez-Abreu D, Serna-Blasco R, Benitez R, Aguado de la Rosa C, Palmero R, Hernando-Trancho F, Martin-Lopez J, Cruz-Bermudez A, Massuti B, Romero A. Perioperative Nivolumab and Chemotherapy in Stage III Non-Small-Cell Lung Cancer. N Engl J Med. 2023 Aug 10;389(6):504-513. doi: 10.1056/NEJMoa2215530. Epub 2023 Jun 28.
PMID: 37379158BACKGROUNDCascone T, Awad MM, Spicer JD, He J, Lu S, Sepesi B, Tanaka F, Taube JM, Cornelissen R, Havel L, Karaseva N, Kuzdzal J, Petruzelka LB, Wu L, Pujol JL, Ito H, Ciuleanu TE, de Oliveira Muniz Koch L, Janssens A, Alexandru A, Bohnet S, Moiseyenko FV, Gao Y, Watanabe Y, Coronado Erdmann C, Sathyanarayana P, Meadows-Shropshire S, Blum SI, Provencio Pulla M; CheckMate 77T Investigators. Perioperative Nivolumab in Resectable Lung Cancer. N Engl J Med. 2024 May 16;390(19):1756-1769. doi: 10.1056/NEJMoa2311926.
PMID: 38749033BACKGROUNDProvencio M, Awad MM, Spicer JD, Janssens A, Moiseyenko F, Gao Y, Watanabe Y, Alexandru A, Guisier F, Frost N, Franke F, Hiltermann TJN, He J, Tanaka F, Lu S, Coronado Erdmann C, Sathyanarayana P, Tran P, Devas V, Cascone T. Clinical outcomes with perioperative nivolumab by nodal status in patients with stage III resectable NSCLC: phase 3 CheckMate 77T exploratory analysis. Nat Cancer. 2026 Jan;7(1):169-181. doi: 10.1038/s43018-025-01104-z. Epub 2026 Jan 8.
PMID: 41507539BACKGROUNDZhao Y, Wang W, Liang H, Yang CJ, D'Amico T, Ng CSH, Liu CC, Petersen RH, Rocco G, Brunelli A, Liu J, He J, Huang W, Liang W, He J; AME Thoracic Surgery Collaborative Group. The Optimal Treatment for Stage IIIA-N2 Non-Small Cell Lung Cancer: A Network Meta-Analysis. Ann Thorac Surg. 2019 Jun;107(6):1866-1875. doi: 10.1016/j.athoracsur.2018.11.024. Epub 2018 Dec 14.
PMID: 30557543BACKGROUNDCarter L, Apte V, Shukla A, Ghose A, Mamidi R, Petohazi A, Makker S, Banerjee S, Boussios S, Banna GL. Stage 3 N2 Lung Cancer: A Multidisciplinary Therapeutic Conundrum. Curr Oncol Rep. 2024 Jan;26(1):65-79. doi: 10.1007/s11912-023-01486-2. Epub 2024 Jan 2.
PMID: 38180692BACKGROUNDHan B, Zheng R, Zeng H, Wang S, Sun K, Chen R, Li L, Wei W, He J. Cancer incidence and mortality in China, 2022. J Natl Cancer Cent. 2024 Feb 2;4(1):47-53. doi: 10.1016/j.jncc.2024.01.006. eCollection 2024 Mar.
PMID: 39036382BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 16, 2026
First Posted
April 20, 2026
Study Start
May 1, 2026
Primary Completion (Estimated)
May 1, 2029
Study Completion (Estimated)
December 1, 2029
Last Updated
April 20, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share