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Renal Cell Carcinoma (RCC)Phase 1NCT07181720

CD70-Targeted CAR-T Therapy in CD70-Positive Advanced Solid Tumors

A Phase 1 study testing CD70-targeted CAR-T cells in people with Renal Cell Carcinoma (RCC) and Lung Cancer, run by Chongqing Precision Biotech Co., Ltd at 1 site in China.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

This study is a single-arm, open-label, dose-escalating + dose-expansion clinical study, aiming to evaluate the safety and efficacy of CD70-targeted CAR-T cell preparations, and to preliminarily observe the study drug in CD70-positive advanced malignant tumors. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
CD70-targeted CAR-T cells
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
1 siteChina
Study dates
12 Sep 2025to 31 May 2028
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥18 years, regardless of gender;
  • Histologically or cytologically confirmed advanced/metastatic solid tumors (tumors with positive CD70 expression, confirmed histopathological ly with IHC 3+ score);
  • Failed or intolerant to standard second-line treatments (at least one of the following: tyrosine kinase inhibitors (TKIs), poly(ADP-ribose) polymerase inhibitors (PARPi), anti-angiogenic therapy; disease progression or inability to tolerate surgery, chemotherapy, radiotherapy, or targeted therapy);
  • At least one measurable lesion per RECIST 1.1 criteria, with measurable lesions defined as:
  • Extranodal lesions with a long axis ≥10mm on CT scan;
  • Lymph node lesions with a short axis ≥15mm on CT scan;
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  • CT slice thickness ≤5mm.
  • ECOG performance status of 0-2 ;
  • Expected survival ≥12 weeks;
  • No history of severe psychiatric disorders;
  • Adequate organ function as defined by the following:
  • Hematology: White blood cell count >2.0×10⁹/L, neutrophils >0.8×10⁹/L, lymphocytes >0.5×10⁹/L, platelets >50×10⁹/L, hemoglobin >90g/L;
  • Cardiac: Echocardiogram showing left ventricular ejection fraction (LVEF) ≥50%, and ECG with no significant abnormalities;
  • Renal: Serum creatinine ≤2.0×ULN;
  • Hepatic: ALT and AST ≤3.0×ULN (may be relaxed to ≤5.0×ULN in cases with liver tumor infiltration); total bilirubin ≤2.0×ULN (may be relaxed to ≤3.0×ULN in cases with Gilbert's syndrome or liver tumor infiltration);
  • Oxygen saturation ≥92% without supplemental oxygen;
  • Ability to undergo single or venous blood collection, with no contraindications to cellular collection;
  • Female subjects must agree to use reliable contraception (excluding fertility awareness methods) from the time of informed consent until 1 year after CAR-T cell infusion;
  • Subject or authorized guardian agrees to participate in the trial and signs the informed consent form (ICF), indicating understanding of the trial's purpose and procedures and willingness to participate.

Who cannot join

  • Prior treatment with anti-CD70 therapies;
  • Active/symptomatic central nervous system (CNS) metastasis or meningeal metastasis: Subjects with treated brain metastases are eligible if treatment was completed ≥4 weeks prior to screening and there is no evidence of progression on imaging;
  • Prior treatments within specified time frames:
  • Participation in other interventional clinical trials within 3 months before cell infusion (for unapproved drugs, the last dose must be ≥3 months prior; for approved drugs, ≥5 half-lives prior to cell infusion);
  • Received chemotherapy or targeted therapy within 2 weeks prior to blood collection or within 5 half-lives of the drug (whichever is shorter);
  • Received >10mg/day prednisone (or equivalent) within 2 weeks prior to blood collection, unless for adrenal replacement or inhaled/local steroids (except for active autoimmune disease);
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  • Received live attenuated vaccines within 4 weeks prior to screening;
  • Active infection requiring systemic treatment or uncontrolled infection within 1 week before screening;
  • History of any other malignancy within the past 3 years, except for treated and stable non-melanoma skin cancer or malignancies treated with curative intent and no evidence of active disease for ≥3 years;
  • Cardiovascular conditions:
  • NYHA Class III or IV heart failure;
  • Myocardial infarction or coronary artery bypass graft (CABG) within 6 months prior to screening;
  • Clinically significant ventricular arrhythmias or unexplained syncope (excluding vasovagal or dehydration);
  • Severe non-ischemic cardiomyopathy;
  • Active or uncontrolled autoimmune diseases such as Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus, systemic vasculitis, etc.;
  • Positive for HBsAg or HBcAb with elevated HBV DNA in peripheral blood; positive for HCV antibodies with detectable HCV RNA levels; positive for HIV antibodies; positive syphilis test;
  • Toxicity from prior anti-tumor treatments has not resolved to baseline or ≤grade 1, except for alopecia or peripheral neuropathy;
  • History of venous thromboembolism (e.g., pulmonary embolism) requiring ongoing anticoagulation treatment, or meeting one of the following criteria:
  • Severe bleeding (grade 3 or 4) lasting for ≥30 days;
  • Post-thrombotic sequelae (e.g., persistent dyspnea and hypoxia) due to venous thromboembolism;
  • Pregnant or breastfeeding women;
  • Other conditions that, in the opinion of the investigator, make the subject unsuitable for participation in the trial.

Trial locations and contacts

1 site in 1 country.

China1 site
  • The 901 Hospital of Joint Logistics Support Force of People Liberation Army

    Hefei, Anhui, 230031

Other trials in China

About this study

Official title: Clinical Study of CD70-Targeted Chimeric Antigen Receptor T Lymphocytes (CAR-T) in Advanced CD70-Positive Malignant Solid Tumors

This study is a single-arm, open-label, dose-escalating + dose-expansion clinical study, aiming to evaluate the safety and efficacy of CD70-targeted CAR-T cell preparations, and to preliminarily observe the study drug in CD70-positive advanced malignant tumors. The pharmacokinetic characteristics of CAR-T cell preparations for the treatment of patients with CD70-positive advanced malignancies were obtained and the recommended dose and infusion schedule.

Read the detailed description

According to the different infusion methods, patients will be assigned to three parallel subgroups: intravenous infusion, intrapleural infusion, and intraperitoneal infusion.

Within each subgroup, the study is conducted in two sequential parts:

  1. .Part A (dose-escalation): escalation begins at the lowest dose level; 3-6 subjects are enrolled at each dose level;
  2. .Part B (dose-expansion): additional subjects are treated at the recommended dose identified in Part A to further evaluate safety and preliminary efficacy.
Being tested
CD70-targeted CAR-T cells
Medical subject headings
Carcinoma, Renal Cell, Lung Neoplasms, Thyroid Carcinoma, Anaplastic, Ovarian Neoplasms, Uterine Cervical Neoplasms, Thymoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CD70-targeted CAR-T cellsBiological

    Administration method: intravenous infusion. Subjects will receive conditioning therapy by Fludarabine and Cyclophosphamide before cell infusion.

  • CD70-targeted CAR-T cellsBiological

    Administration method: intrapleural infusion. Subjects will receive conditioning therapy by Fludarabine and Cyclophosphamide before cell infusion.

  • CD70-targeted CAR-T cellsBiological

    Administration method: intraperitoneal infusion. Subjects will receive conditioning therapy by Fludarabine and Cyclophosphamide before cell infusion.

Study groups in NCT07181720
Study groupRoleWhat they receive
Intravenous of CD70-targeted CAR-TExperimentalInfusion of CD70-targeted CAR-T cells by dose of 3-10x10^5 cells/kg
Receives: Biological: CD70-targeted CAR-T cells
Intrapleural infusion of CD70-targeted CAR-TExperimentalInfusion of CD70-targeted CAR-T cells by dose of 3-10x10^5 cells/kg
Receives: Biological: CD70-targeted CAR-T cells
Intraperitoneal infusion of CD70-targeted CAR-TExperimentalInfusion of CD70-targeted CAR-T cells by dose of 3-10x10^5 cells/kg
Receives: Biological: CD70-targeted CAR-T cells

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate the safety of CAR-T cell preparations in the treatment of CD70-positive advanced malignancies [Safety and Tolerability]

    Incidence of adverse events during the study, evaluated per the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 and American Society for Transplantation and Cellular Therapy (ASTCT) criteria

    Measured: 1 month

  2. Obtained the recommended dose and infusion regimen of CAR-T cells for the treatment of patients with CD70-positive advanced malignancies [Safety and Tolerability]

    Dose-limiting toxicity after CD70 CAR-T cell infusion

    Measured: 1 month

Secondary outcomes (4)
  1. Assessing disease control rates of CAR-T cell preparations in CD70-positive advanced malignancies [Effectiveness]

    Disease control rate: The proportion of subjects who achieved CR, PR, SD after CAR-T infusion accounted for all treated subjects (Assessed based on RECIST criteria),the minimum value is 0%,maximum value is 100%, and higher scores mean a better outcome.

    Measured: 1 and 3 months

  2. To characterize the in-vivo cellular kinetics of CAR-T cells【pharmacokinetics】

    Cmax: maximum observed level of circulating CAR-T cells in peripheral blood after infusion

    Measured: From infusion through Month 3

  3. To characterize the in-vivo cellular kinetics of CAR-T cells【pharmacokinetics】

    To determine the time to maximum observed level of circulating CAR-T cells (Tmax);To estimate AUC0-28d and AUC0-90d for circulating CAR-T cells

    Measured: From infusion through Month 3

  4. To assess the inflammatory response following CAR-T cell infusion

    Serum levels of inflammation-related markers and cytokines, including but not limited to C-reactive protein (CRP), interleukin-6 (IL-6), and ferritin

    Measured: From infusion through Month 3

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Sep 2025
  2. Study start12 Sep 2025
  3. Primary completion31 Mar 2028 (estimated)
  4. Study completion31 May 2028 (estimated)

Why it stopped: Sponsor stopped the study.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07181720
Sponsor's protocol ID
PBC095
Status last verified
Sep 2026
First submitted
12 Sep 2025
Last updated
11 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CD70-targeted CAR-T cells in people with Renal Cell Carcinoma (RCC) and Lung Cancer, run by Chongqing Precision Biotech Co., Ltd at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 19 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 11 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate the safety of CAR-T cell preparations in the treatment of CD70-positive advanced malignancies [Safety and Tolerability] (time frame: 1 month). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Sep 2026.

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