Iparomlimab and Tuvonralimab Plus Chemotherapy for Inducing Conversion to Resectability in Initially Unresectable Stage III NSCLC

Not Applicable

Not yet recruiting

• Conditions: NSCLC (Non-small-cell Lung Cancer)
• Interventions: Drug: Iparomlimab and tuvonralimab plus chemotherapy

• Registration Number: NCT07139041
• Lead Sponsor: Chang Chen

Brief Summary

This is a single-arm, multicenter Phase II clinical study designed to observe and evaluate the efficacy and safety of Iparomlimab and tuvonralimab plus chemotherapy in initially unresectable Stage III NSCLC. The study plans to enroll 69 Stage III NSCLC patients judged unresectable by a MDT team, with the R0 resection rate as the primary endpoint.

After completing 2-4 cycles of conversion therapy, the MDT team reassesses resectability. Subjects deemed suitable for surgical resection undergo surgery within 6 weeks after the last dose of conversion therapy. Subjects deemed unsuitable for surgery receive radical chemoradiotherapy, starting within 6 weeks after the last conversion therapy dose. Subjects unsuitable for both surgery and chemoradiotherapy will have their subsequent treatment decided by the project team.

Adjuvant therapy consists of Iparomlimab and tuvonralimab monotherapy (Q3W) for up to 16 cycles.

Detailed Description

Not available

Study Timeline

• Status Verified: 2025-08
• Study First Submitted: 2025-08-18
• Study First Submitted QC: 2025-08-18
• Last Update Submitted: 2025-08-18
• Study First Posted: 2025-08-24
• Last Update Posted: 2025-08-24
• Study Start: 2025-10-01
• Primary Completion: 2027-04
• Study Completion: 2029-06-01

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 69

Inclusion Criteria

1. Signed an informed consent form

2. Patients aged ≥18

3. Histologically or cytologically confirmed Stage III (AJCC 9th ed.) squamous or non-squamous NSCLC (mixed tumors classified by predominant cell type), deemed unresectable by the MDT team based on at least one of the following criteria:

   1. Ipsilateral multi-station or confluent mediastinal lymph node metastasis: Imaging shows ipsilateral multi-station lymph node metastasis or confluent lymph node mass (>3cm diameter) or invasion of surrounding organs, making complete surgical clearance impossible.
   2. Contralateral or supraclavicular lymph node metastasis (N3): This includes contralateral hilar and mediastinal lymph node metastasis, or ipsilateral/contralateral supraclavicular lymph node metastasis.
   3. Invasion of vital organs or major vessels: Anatomical tumor or lymph node invasion directly involving the heart, major vessels (e.g., aorta, main pulmonary artery), trachea, esophagus, vertebral body (>50% involvement), or brachial plexus.
   4. Extensive chest wall and pleural invasion: Involvement of ribs, intercostal muscles, and chest wall soft tissues is extensive, requiring large chest wall resection that the patient's pulmonary function cannot tolerate, or impossible to clear surgically.
   5. Special anatomical location: e.g., superior sulcus tumor (Pancoast tumor) invading vertebrae/nerve plexus, recurrent laryngeal nerve involvement causing vocal cord paralysis, tumor extent precluding R0 resection.
   6. Patient unable to tolerate lobectomy or pneumonectomy: Insufficient cardiopulmonary reserve, severe cardiovascular disease, coagulation dysfunction, or other systemic diseases precluding lobectomy or pneumonectomy.

4. at least one measurable lesion according to RECIST 1.1 criteria

5. ECOG PS 0-1.

6. Pulmonary function must meet: FEV1 > 1.0 L and FEV1%> 40%

7. appropriate organ function

Exclusion Criteria

1. NSCLC with small cell component identified on pathology (regardless of proportion); Histological types of large cell neuroendocrine carcinoma, sarcomatoid carcinoma, or NSCLC-NOS.
2. Known EGFR mutation or ALK rearrangement positivity (eligibility of subjects with other driver gene positivity will be determined by the project biomarker expert group).
3. Prior systemic anti-tumor therapy or thoracic radiotherapy.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Iparomlimab and tuvonralimab plus chemotherapy	Iparomlimab and tuvonralimab plus chemotherapy	Patients will receive Iparomlimab and tuvonralimab (5 mg/kg) plus chemotherapy (nab-paclitaxel, pemetrexed, or docetaxel) every 3 weeks.

Primary Outcome Measures

Name	Time	Method
R0 Resection Rate	2 years	The proportion of patients who achieve complete tumor removal with no residual cancer cells at the surgical margin under microscopic examination after surgery

Secondary Outcome Measures

Name	Time	Method
2-year event-free survival (EFS) rate	2 years	The percentage of patients who remain free of disease progression, recurrence, or death within 24 months from the initiation of therapy
Pathologic Complete Response (pCR)	2 years	Pathologic complete response (pCR) rate is defined as the percentage of patients with no residual viable tumor cells in both primary tumor and sampled lymph nodes after neoadjuvant therapy