A Clinical Research of CD70-targeted CAR-NKT Cells (CGC738) Therapy in RCC

Phase 1

Not yet recruiting

• Conditions: Advanced Clear Cell Renal Cell Carcinoma
• Interventions: Drug: CGC738

• Registration Number: NCT06870279
• Lead Sponsor: RenJi Hospital

Brief Summary

This is a phase I, open-label, single-arm study conducted to evaluate the efficacy, safety and PK of CGC738 in the treatment of advanced clear cell renal cell carcinoma (ccRCC).

Detailed Description

This is a single-arm, open-label study. This study will include two parts, dose escalation phase (3+3 design) followed by a dose expansion phase. All eligible participants will receive a conditioning chemotherapy regimen of fludarabine and cyclophosphamide followed by CAR-T cell injection.

Additional patients will be enrolled in the dose expansion phase to further characterize the safety profile and evaluate the efficacy of anti-CD70 CAR-T cell injection.

Study Timeline

• Study First Submitted: 2025-03-05
• Study First Submitted QC: 2025-03-05
• Study First Posted: 2025-03-11
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-19
• Last Update Posted: 2025-04-24
• Study Start: 2025-05-25
• Primary Completion: 2026-08-01
• Study Completion: 2026-12-31

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 28

Inclusion Criteria

• 1. Age 18 to 75 years.
• 2.ECOG 0-1 points.
• 3. The expected survival time is more than 3 months.
• 4. Patients with advanced ccRCC confirmed by histology or cytology to be recurrent or metastatic after at least first-line treatment.
• 5. IHC: CD70 positive.
• 6. At least one measurable lesion at baseline per RECIST version 1.1.
• 7. The functions of important organs are basically normal:
• 8. Pregnancy tests for women of childbearing age shall be negative, both men and women agreed to use effective contraception.

Exclusion Criteria

• 1. Use of cell therapy within the previous one month.
• 2. Subjects with other malignant tumors within the past 2 years, except basal or squamous skin cancer, superficial bladder cancer, and breast cancer in situ, have been completely cured and do not need follow-up treatment.
• 3. Patients with leptomeningeal metastasis or central nervous system metastasis, and definite central nervous system underlying diseases with significant symptoms.
• 4. Immunotherapy, targeted drug therapy or chemotherapy within 5 drug half-lives within 2 weeks before cell infusion.
• 5. Active hepatitis B, HIV positive and HCV positive.
• 6. Active infection or uncontrollable infection.
• 7. Uncontrollable or significant heart disease.
• 8. Unstable respiratory diseases, including interstitial pneumonia.
• 9. Uncontrolled ascites and pleural effusion.
• 10.Known to have active or uncontrolled autoimmune diseases, such as Crohns disease, rheumatoid arthritis, systemic lupus erythematosus, etc.
• 11.Subjects who are using systemic steroids or steroid inhalers for treatment.
• 12.Pregnant or lactating female subjects.
• 13.Other investigators deem it unsuitable to participate in the study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
CAR-NKT Cells Lymphodepleting regimen	CGC738	CAR-NKT Cells treatment

Primary Outcome Measures

Name	Time	Method
Percentage of Participants Experiencing Dose Limiting Toxicities (DLTs)	Day 28 after CGC738 infusion	Dose limiting toxicity (DLT) is an AE that meets the following criteria and occurs within 28 days of CGC738 infusion.AE is graded according to CTCAE version 5.0.

Secondary Outcome Measures

Name	Time	Method
ORR	Day 1 through week 56	Assess Objective response rate
DCR	Day 1 through week 56	Assess Disease control rate
AEs	Day 1 through week 56	Incidence of adverse events