MedPath

Adoptive Transfer of iNKT Cells for Treating Patients With Relapsed/Advanced HCC

Phase 1
Conditions
Hepatocellular Carcinoma
Interventions
Biological: iNKT cells
Registration Number
NCT03175679
Lead Sponsor
Beijing YouAn Hospital
Brief Summary

This study enrolls patients who have relapsed/advanced hepatocellular carcinoma (HCC, BCLC stage C). The HCC tumor relapsed or metastasized through the body after standard treatment or the patients cannot receive standard treatment under current conditions. This research study uses special immune system cells called iNKT cells, a new experimental treatment.

The purpose of this study is to find the biggest dose of iNKT cells that is safe and tolerance, to see how long they last in the body, to learn the immunoresponse in the body, to learn the side effects are and to see if the iNKT cells will help people with relapsed/advanced hepatocellular carcinoma (HCC).

Detailed Description

PBMCs of enrolled patients were collected and then further separated by density gradient centrifugation. After washing three times, the cells were resuspended in serum-free medium with recombinant human IL-2 and α-GalCer. Restimulation with α-GalCer-pulsed autologous DCs was done on days 7. After 14 days of cultivation, the iNKT cells were harvested, washed thrice, and then resuspended in saline. The frequency of iNKT cells before and after cultured in vitro were determined by flow cytometry analysis.

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
18
Inclusion Criteria
  • Age 18-80 years.
  • Patients with hepatocellular carcinoma (BCLC, stage C) proved by histopathology or proved by CT or MRI imaging system, relapsed after previous therapy and no effective therapies known at this time.
  • Life expectancy of ≥ 12 weeks.
  • WBC>3.5×10^9/L, LYMPH> 0.8×10^9/L, Hb>85g/L, PLT>50×10^9/L, Cre<1.5×the upper limit of normal value.
  • iNKT>10/mL in peripheral blood mononuclear cell (PBMC).
  • Able to understand and sign the informed consent.
Exclusion Criteria
  • Any uncontrolled systematic disease: hypertension, heart disease, and et al.;
  • Portal vein tumor thrombus, central nervous system tumor metastasis, or combined with other tumors;
  • Receiving radiochemotherapy, local therapy, or targeting drugs within 4 weeks prior to this treatment;
  • Unstable immune systematic diseases or infectious diseases;
  • Combined with AIDS or syphilis;
  • Patients with history of stem cell or organ transplantation;
  • Patients with allergic history to related drugs and immunotherapy;
  • Patients with complications associated with liver diseases: moderate or severe pleural effusion, pericardial effusion, ascites, or gastrointestinal hemorrhage;
  • Pregnant or lactating subjects;
  • Unsuitable subjects considered by clinicians.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
iNKT cell loading dose:1x10^10/m2IL-2Autologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:1x10\^10/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:3x10^7/m2iNKT cellsAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:3x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:3x10^7/m2IL-2Autologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:3x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:3x10^7/m2TegafurAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:3x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:6x10^7/m2iNKT cellsAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:6x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:6x10^7/m2IL-2Autologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:6x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:6x10^7/m2TegafurAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:6x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:9x10^7/m2iNKT cellsAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:9x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:9x10^7/m2IL-2Autologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:9x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:9x10^7/m2TegafurAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:9x10\^7/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:1x10^10/m2iNKT cellsAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:1x10\^10/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
iNKT cell loading dose:1x10^10/m2TegafurAutologous in vitro expanded iNKT cells in conjunction with IL-2 and along with lymphodepleting chemotherapy (Tegafur) will be administered to patients with advanced HCC. iNKT Cell Loading Dose:1x10\^10/m2. IL-2: IL-2 will be given at a dose of 25,000 IU/kg/day for 5-14 days. Tegafur: Tegafur will be given at a dose of 40\~60 mg bis in die (BID) 2 weeks.
Primary Outcome Measures
NameTimeMethod
Number of Adverse EventsDuring the first 12 weeks, participants were assessed for adverse events every 2-4 weeks after infusion; after the first 12 weeks, participants were assessed for adverse events every 3 months, up to 20 months.

Defined as signs/symptoms, laboratory toxicities, and clinical events that are possibly, likely, or definitely related to study treatment Adverse events assessed according to NCI-CTCAE v4.0 criteria 2.

Secondary Outcome Measures
NameTimeMethod
Progression-Free Survival (PFS)Through study completion, an average of 12 months.

PFS is the time that passes from the date that patient enrolled in the clinical trial and the date on which HCC progresses or the date on which the patient dies. HCC progression was evaluated by imaging according to the irRC standard. Progression is defined as a ≥25% increase in the nadir of the sum of target lesions.

Number of Participants With Stabilized (SD) or Progressive (PD) Disease.4 weeks, 8 weeks, 12 weeks and 24 weeks after cell infusion.

Disease stabilization (SD) or progressive diseasee (PD) were valuated by imaging according to the irRC standard. Complete response (CR): Disappearance of all lesions; Partial response (PR): ≥50% decrease from baseline; SD: Neither CR or PD is met; PD≥25% increase in the nadir of the sum of target lesions.

Overall Survival (OS)Through study completion, up to 20 months.

OS is the time that passes from the date that patient enrolled in the clinical trial and the date on which the patient dies, according to the irRC standard.

Trial Locations

Locations (1)

Beijing Youan Hospital,Capital Medical University

🇨🇳

Beijing, Beijing, China

© Copyright 2025. All Rights Reserved by MedPath