NCT07358689

Toripalimab Combined With Platinum-based Chemotherapy With or Without H1 Receptor Antagonist in the Perioperative Treatment of Resectable Non-small Cell Lung Cancer

Toripalimab Combined With Platinum-based Chemotherapy With or Without H1 Receptor Antagonist (Diphenhydramine) in the Perioperative Treatment of Resectable Non-small Cell Lung Cancer: A Single-center, Randomized Controlled Phase II Clinical Trial

• Status: Not Yet Recruiting
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 120 (estimated)
• Sponsor: Tianjin Medical University Cancer Institute and Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

The goal of this clinical trial is to evaluate the efficacy and safety of H1 receptor antagonist (diphenhydramine) combined with toripalimab plus standard platinum-based chemotherapy in the perioperative setting in subjects with operable NSCLC. The subjects of this study are patients with histologically or cytologically confirmed stage IIIA-IIIB NSCLC (AJCC Version 9) who are planned to receive neoadjuvant therapy with toripalimab combined with standard platinum-based chemotherapy. Eligible subjects were randomized at a 1:1 ratio to receive 3-4 cycles of neoadjuvant diphenhydramine (an H1 receptor antagonist) plus toripalimab and standard platinum-based chemotherapy, or toripalimab plus platinum-based chemotherapy alone, followed by treatment response evaluation and definitive surgery. After surgery, the experimental group will receive maintenance therapy with diphenhydramine (an H1 receptor antagonist) plus toripalimab for 13-14 cycles, while the control group will receive toripalimab monotherapy for the same 13-14 cycles.

Conditions

• NSCLC

Interventions

Type	Name	Description
DRUG	Toripalimab (240mg day1, Q3W*3cycle)	Toripalimab is a recombinant, humanized programmed death receptor-1 (PD-1) monoclonal antibody that binds to PD-1 and prevents binding of PD-1 with programmed death ligands 1 (PD-L1) and 2 (PD-L2). Toripalimab was administered concurrently with chemotherapy, Q3W
DRUG	Diphenhydramine	Diphenhydramine, is an antihistamine. It has antihistamine H1 receptor effects, strong inhibitory effects on the central nervous system, and atropine-like effects. Diphenhydramine was administered 20mg qd IM d0-d2.
DRUG	Platinum-based chemotherapy	Carboplatin: AUC5 (per Calvert formula); maximum dose: 750 mg；Cisplatin: 75 mg/m² D1, Q3W; Pemetrexed: 500 mg/m² D1, Q3W; Docetaxel: 60-75 mg/m² or Paclitaxel: 175 mg/m², D1, Q3W

Timeline

• Start date: 2026-01-30
• Primary completion: 2028-01-01
• Completion: 2029-01-01
• First posted: 2026-01-22
• Last updated: 2026-01-22

Locations

1 site across 1 country: China