NCT06212388

Allogeneic Gammadelta T Cells Combined With Interferon-α1b or PD-1 Monoclonal Antibody in Stage III-IV Amenable to Surgical Resection Melanoma

Efficacy and Safety of Allogeneic γδ T Cells (γδ T Cells) Combined With Interferon-alpha1b (IFN-α1b) or PD-1 Monoclonal Antibody in Neoadjuvant Treatment of Stage III-IV Resectable Melanoma

• Status: Not Yet Recruiting
• Phase: EARLY_Phase 1
• Study type: Interventional
• Enrollment: 10 (estimated)
• Sponsor: Xijing Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the efficacy and safety of allogeneic γδ T cells combined with recombinant human interferon-α1b (IFN-α1b) or PD-1 monoclonal antibody in neoadjuvant treatment of patients with Stage III-IV resectable melanoma.

Detailed description

This is a double-arm, single-center, randomized, open label Phase I clinical trial to evaluate the efficacy and safety of the combination of ex-vivo expanded allogeneic γδ T cells plus recombinant human interferon α1b or PD-1 monoclonal antibody in patients with Stage III-IV resectable melanoma(AJCC 8th). We randomly assigned patients with stage III-IV melanoma that was amenable to surgical resection to three doses of neoadjuvant γδT cells plus IFN-α1b or γδT cells plus pembrolizumab , surgery, and 15 doses of adjuvant γδT cells plus IFN-α1b or γδT cells plus pembrolizumab. The primary endpoints are pathological response rate after 3 cycles of treatment, including: complete pathological response rate (pCR), major pathological response rate (MPR), partial pathological response rate (pPR); preoperative imaging response rate (RECIST v1.1) was evaluated, including complete response (CR), partial response (PR), stable disease (SD), and disease progression (PD); and proportion of patients who do not need surgery due to remission. The second endpoints are event-free survival (EFS), relapse free survival (RFS), and overall survival (OS, 3 years after surgery). The safety profile of the combined γδT cells/IFN-α1b regimen and γδT cells/ pembrolizumab regimen will be monitored, we will evaluate the numbers and severity of toxicity per the Criteria for Adverse Events version 5 (CTCAEv) including but not limited to all adverse events (AE), incidence of surgery-related adverse events, and proportion of inoperable patients (due to disease progression or treatment-related adverse events).

Conditions

• Melanoma

Interventions

Type	Name	Description
BIOLOGICAL	Ex-vivo expanded allogeneic γδ T cells	Cells will be extracted from a healthy donor by apheresis, followed by ex-vivo expansion and activation. The ex-vivo expanded γδT cells from donors will be adoptively transfused.
DRUG	Recombinant human interferon α1b	Recombinant human interferon α1b is a protein with potent antiviral, antiproliferative and immunomodulatory properties.
DRUG	Pembrolizumab	Pembrolizumab is a recombinant, humanized programmed death receptor (PD-1) monoclonal antibody that binds to PD- and prevents binding of PD-1 with programed death ligands 1 (PD-L1) and PD-L2. It can function to activate cytotoxic T lymphocytes and inhibit tumor growth.

Timeline

• Start date: 2024-01-24
• Primary completion: 2027-10-30
• Completion: 2028-10-30
• First posted: 2024-01-18
• Last updated: 2024-01-25