A Clinical Study of CD70-targeted CAR-T in the Treatment of CD70-positive Advanced/Metastatic Solid Tumors

A Phase I Clinical Study of CD70-targeting CAR-T Therapy in the Treatment of CD70-positive Advanced/Metastatic Solid Tumors

This is a phase I clinical study to evaluate the safety and tolerability of CAR-T in patients with CD70-positive advanced/metastatic solid tumors, and to obtain the maximum tolerated dose of CAR-T and phase II Recommended dose.

Study Overview

• Status: Recruiting
• Conditions: Renal Cell Carcinoma; Ovarian Cancer; Cervix Cancer; Advanced Solid Tumor; Metastatic Tumor
• Intervention / Treatment: Biological: CD70 CAR-T cells; Biological: CD70 CAR-T cells

Detailed Description

This is a single-center, double-arm, open-label study. The study plans to set up 2 groups,Intravenous infusion group have 4 dose groups, adopting a dose-escalating 3+3 design, and plan to recruit about 12 subjects with CD70-positive advanced/metastatic solid tumors.Intraperitoneal injection group have 4 dose groups, adopting a dose-escalating 3+3 design, and plan to recruit about 12 subjects with CD70-positive advanced/metastatic solid tumors.

• Study Type: Interventional
• Enrollment (Estimated): 36
• Phase: Phase 1

Contacts and Locations

• Study Contact: Name: Weijia Fang, M.D; Phone Number: 13758211655; Email: weijiafang@zju.edu.cn

Study Locations

• China
  • Zhejiang
    • Hangzhou, Zhejiang, China, 310006
      • Recruiting
      • First affiliated hospital, Zhejiang University
      • Contact: Weijia fang, MD; Phone Number: 13758211655; Email: weijia.fang@163.com
      • Principal Investigator: Weijia fang, MD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Age ≥18 years old, male or female;
2. Histopathology or cytology (paraffin section or fresh biopsy tumor tissue specimen) diagnosed as advanced/metastatic solid tumor (positive tumor CD70 expression (tumor CD70 positive (IHC 3+) confirmed by histology or pathology));
3. Failure or intolerance after standard treatment (disease progression or intolerance such as surgery, chemotherapy, radiotherapy, targeted therapy, etc.), and there is currently no effective treatment;
4. According to the RECIST version 1.1 standard, at least one target lesion with measurable diameter and evaluable, measurable lesions are defined as: extranodal CT scan long diameter ≥ 10mm, lymph node lesions CT scan short diameter ≥ 15mm, scan slice thickness Not larger than 5mm, and has not received local treatment;
5. ECOG 0-2 points;
6. The expected survival time is more than 12 weeks;
7. No serious mental disorder;

8. The function of important organs is basically normal:

   1. Hematopoietic function: neutrophils>1.0×109/L, platelets>75×109/L, hemoglobin>80g/L;
   2. Cardiac function: echocardiography showed cardiac ejection fraction ≥50%, and no obvious abnormality was found on electrocardiogram;
   3. Renal function: serum creatinine≤2.0×ULN;
   4. Liver function: ALT and AST ≤2.0×ULN (for patients with liver tumor infiltration, it can be relaxed to ≤3.0×ULN);
   5. Total bilirubin ≤2.0×ULN (Gilbert syndrome or combined liver tumor infiltration can be relaxed to ≤3.0×ULN);
   6. Oxygen saturation > 92% in non-oxygen state.
9. Have apheresis or venous blood collection standards, and have no other contraindications for cell collection;
10. Subjects agree to use reliable and effective contraceptive methods for contraception (excluding safe period contraception) within 1 year after signing the informed consent form to receiving CAR-T cell infusion;
11. Subjects or their guardians agree to participate in this clinical trial and sign the ICF, indicating that they understand the purpose and procedures of this clinical trial and are willing to participate in the research.

Exclusion Criteria:

1. Received anti-CD70 drug treatment before screening;
2. Active/symptomatic central nervous system metastases or meningeal metastases at the time of screening; subjects with brain metastases who have been treated must be confirmed to have no imaging-proven progression ≥4 weeks after the end of treatment before they can be enrolled;

3. Received any of the following treatments prior to screening:

   1. Participated in other interventional clinical studies before screening, including: the last use of unmarketed new drugs is less than 3 months before cell reinfusion, or the last use of marketed drugs is less than 5 half-lives from cell reinfusion;
   2. Received anti-tumor therapy such as chemotherapy and targeted therapy within 2 weeks or at least 5 half-lives (whichever is shorter) before apheresis;
   3. Received systemic corticosteroid therapy at doses greater than 10 mg/day prednisone (or equivalent doses of other corticosteroids) within 2 weeks prior to apheresis (inhalation or topical is allowed in the absence of active autoimmune disease Use steroids and adrenal corticosteroid replacement at doses greater than 10 mg/day of prednisone);
   4. Received live attenuated vaccine within 4 weeks before screening;
4. Active infection or uncontrollable infection requiring systemic treatment within 1 week before screening;
5. Malignant tumors other than the target tumor within 3 years prior to screening, except for the following: malignant tumors that have received radical treatment and no known active disease within ≥ 3 years prior to enrollment; or adequately treated of non-melanoma skin cancers with no evidence of disease;

6. Have any of the following heart conditions:

   1. New York Heart Association (NYHA) stage III or IV congestive heart failure;
   2. Myocardial infarction or coronary artery bypass grafting (CABG) within 6 months before enrollment;
   3. Clinically significant ventricular arrhythmia, or a history of unexplained syncope (except those caused by vasovagal or dehydration);
   4. History of severe nonischemic cardiomyopathy.
7. Known to have active or uncontrolled autoimmune diseases, such as Crohns disease, rheumatoid arthritis, systemic lupus erythematosus, systemic vasculitis, etc.;
8. Hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb) positive and peripheral blood hepatitis B virus (HBV) DNA titer is greater than the normal range; hepatitis C virus (HCV) antibody positive and peripheral blood hepatitis C Virus (HCV) RNA titer test is greater than the normal range; human immunodeficiency virus (HIV) antibody positive; syphilis test positive; cytomegalovirus (CMV) DNA test positive;
9. The subject has experienced venous thromboembolic events (eg: pulmonary embolism) and still needs anticoagulation therapy, or meets the following conditions: a. Bleeding with grades 3 to 4 for more than 30 days; b. venous thrombosis Sequelae (such as persistent dyspnea and hypoxia); (Note: although subjects with venous thrombosis but not meeting the above conditions can participate in the trial);
10. Poorly controlled hypertension, defined as systolic blood pressure ≥ 150 mmHg and/or diastolic blood pressure ≥ 90 mmHg (blood pressure values measured based on the average of 3 readings at least 2 minutes apart, blood pressure ≥ 150/90 mmHg at initial screening is acceptable Antihypertensive treatment, screening can be performed if the blood pressure is less than 150/90mmHg and well controlled after treatment);
11. Women who are pregnant or breastfeeding, and male or female subjects who plan to have children within 1 year after receiving CAR-T cell reinfusion;
12. Other investigators deem it inappropriate to participate in the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Intravenous of CD70-targeted CAR-T; Infusion of CD70-targeted CAR-T cells by dose of 1-10x106 cells/kg	Biological: CD70 CAR-T cells; Administration method: intravenous infusion； Subjects will be treated with Fludarabine and Cyclophosphamide before cell infusion.; Biological: CD70 CAR-T cells; Administration method: intraperitoneal injection； Subjects will be treated with Fludarabine and Cyclophosphamide before cell infusion.
Experimental: intraperitoneal injection of CD70-targeted CAR-T; Infusion of CD70-targeted CAR-T cells by dose of 1-10x106 cells/kg	Biological: CD70 CAR-T cells; Administration method: intravenous infusion； Subjects will be treated with Fludarabine and Cyclophosphamide before cell infusion.; Biological: CD70 CAR-T cells; Administration method: intraperitoneal injection； Subjects will be treated with Fludarabine and Cyclophosphamide before cell infusion.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence of Adverse events after CD70 CAR-T cells infusion [Safety and Tolerability]	Therapy-related adverse events were recorded and assessed according to the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE, Version 5.0)	28 days
Obtain the maximum tolerated dose of CD70 CAR-T cells[Safety and Tolerability]	Dose-limiting toxicity after cell infusion	28 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Disease control rate of CAR-T cell preparations in CD70 positive advanced malignancies [Effectiveness]	Disease control rate: including CR, PR and SD	3 months
Objective response rate (ORR) of CD70 CAR-T treatment in patients with CD70-positive advanced malignancies[Effectiveness]	Objective response rate includes：CR、PR	3 months
Duration of Response (DOR) of CD70 CAR-T treatment in patients with CD70-positive advanced malignancies[Effectiveness]	DOR will be assessed from the first assessment of CR/PR/SD to the first assessment of recurrence or progression of the disease or death from any cause	3 months
AUCS of CD70 CAR-T cells [Cell dynamics]	AUCS is defined as the area under the curve in 28 days and 90 days	3 months
CMAX of CD70 CAR-T cells [Cell dynamics]	CMAX is defined as the highest concentration of CD70 CAR-T cells expanded in peripheral blood	3 months
TMAX of CD70 CAR-T cells[Cell dynamics]	TMAX is defined as the time to reach the highest concentration	3 months
Pharmacodynamics of CD70 CAR-T cells[Cell dynamics]	Concentration levels of CAR-T-related serum cytokines such as CRP, IL-6, ferritin at each time point	3 months

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
The correlation between CD70 positive rate and safety	assessment the correlation between CD70 positive rate and the incidence of CRA and ICANS	1 years
Correlation between CD70 positive rate and efficacy	assessment the correlation between CD70 positive rate and the disease control rate，Disease control rate: including CR, PR and SD	1 years
Duration of Response (DOR) of CD70 CAR-T treatment in patients with CD70-positive advanced malignancies[Effectiveness]	DOR will be assessed from the first assessment of CR/PR/SD to the first assessment of recurrence or progression of the disease or death from any cause (Assessed by investigators based on IRECIST criteria)	1 years
Overall survival(OS)of CD70 CAR-T treatment in patients with CD70-positive advanced malignancies[Effectiveness]	OS will be assessed from the first CD70-CAR-T cell infusion to death from any cause (Assessed by investigators based on IRECIST criteria)	1 years
Progress-free survival(PFS) of CD70 CAR-T treatment in patients with CD70-positive advanced malignancies[Effectiveness]	PFS will be assessed from the first CD70-CAR-T cell infusion to death from any cause or the first assessment of progression (Assessed by investigators based on IRECIST criteria)	1 years

Collaborators and Investigators

• Sponsor: Weijia Fang, MD
• Collaborators: Chongqing Precision Biotech Co., Ltd
• Investigators: Principal Investigator: Weijia Fang, M.D, The First Affiliated Hospital, Zhejiang University

Study record dates

Study Major Dates

• Study Start (Actual): May 30, 2022
• Primary Completion (Estimated): May 30, 2024
• Study Completion (Estimated): May 30, 2025

Study Registration Dates

• First Submitted: August 24, 2022
• First Submitted That Met QC Criteria: August 24, 2022
• First Posted (Actual): August 26, 2022

Study Record Updates

• Last Update Posted (Actual): August 21, 2023
• Last Update Submitted That Met QC Criteria: August 16, 2023
• Last Verified: August 1, 2023

More Information

Terms related to this study

• Keywords: CAR-T; CD70; CD70-positive advanced/metastatic solid tumors
• Additional Relevant MeSH Terms: Pathologic Processes; Neoplasms by Histologic Type; Urologic Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Kidney Diseases; Urologic Diseases; Adenocarcinoma; Carcinoma; Neoplasms, Glandular and Epithelial; Uterine Neoplasms; Genital Neoplasms, Female; Uterine Cervical Diseases; Uterine Diseases; Kidney Neoplasms; Neoplastic Processes; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Male Urogenital Diseases; Genital Diseases; Genital Diseases, Female; Neoplasms; Carcinoma, Renal Cell; Uterine Cervical Neoplasms; Neoplasm Metastasis
• Other Study ID Numbers: PBC038

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No