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Solid TumorEarly Phase 1NCT05166070

An Exploratory Clinical Study of RD133 in Subjects With Relapsed or Refractory MSLN-Positive Solid Tumors

A Early Phase 1 study testing RD133 in people with Solid Tumor, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study is a single-center exploratory clinical trial. It is estimated that 9-24 subjects will be enrolled. The "3+3" dose escalation design is adopted. The main purpose is to evaluate the safety of RD133 in the treatment of subjects with relapsed or refractory MSLN-positive solid tumors and explore the Recommend… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Solid Tumor
What is being tested?
RD133
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteChina
Study dates
1 Jan 2022to 1 Jan 2037
Phase
Early Phase 1
Are there results?
Not yet: the study is under way

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

  • The subject must personally sign the written informed consent form approved by the ethics committee before the start of the study;
  • ≥18 years of age;
  • Have received at least 2 prior standard treatments, and achieved no response to the last-line treatment;
  • >25% Mesothelin positive rate on tumor cell membrane confirmed by prior immunohistochemistry of tumor tissue or freshly punctured tissue;
  • Expected survival ≥ 12 weeks;
  • ECOG score ≤ 2;
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  • At least one measurable target lesion that meets the RECIST v1.1 standard;
  • Female or male subjects with fertility should agree to practice an effective method of contraception from the day of signing the ICF until 365 days after the infusion. Effective method of contraception is defined as: abstinence or contraceptive methods with an annual failure rate of <1% specified in the plan. ;
  • Before being enrolled in the group, the subject must have proper organ function and meet all of the following criteria:
  • 9.1 The absolute value of neutrophils≥1.0×10^9/L (granulocyte colony stimulating factor (G-CSF) support is allowed, but must be without supportive treatment within 7 days before the examination); 9.2 Platelet count ≥75×10^9/L (must be without blood transfusion support [including blood component transfusion] or thrombopoietin [TPO], or other treatments for the purpose of increasing platelets within 7 days before the examination); 9.3 Hemoglobin ≥9 g/dl (must be without blood transfusion support [including blood component transfusion] within 7 days before the examination); 9.4 Bilirubin value ≤1.5×upper limit of normal (ULN) (except bile duct obstruction caused by tumor compression); 9.5 Creatinine clearance rate ≥60 ml/min; 9.6 ALT or AST ≤2.5×upper limit of normal (ULN) (with liver involvement ≤5×ULN); 9.7 The results of echocardiography indicate that the cardiac ejection fraction is ≥ 50%, without obvious pericardial effusion; 9.8 Stable coagulation function: INR ≤ 1.5, APTT ≤1.2×ULN (except tumor-related anticoagulation therapy); 9.9 >91% basic blood oxygen saturation in the natural indoor air environments.

Who cannot join

  • Subject who has received any of the following prior treatments:
  • 1.1 Subject with acute or chronic graft-versus-host disease (GVHD) who need systemic treatment within 4 weeks before enrollment; 1.2 Subject who has received gene therapy before enrollment; 1.3 Subject who needs systematic immunosuppressive therapy (except topical drugs) to control autoimmune diseases (eg: Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus, etc.), immunodeficiency or other diseases in the first 2 years after enrollment; 1.4 Subject who has been injected with live vaccines within 4 weeks before enrollment; 1.5 Subject has received other interventional clinical research drugs within 12 weeks before apheresis.
  • Subject with central metastasis or complete intestinal obstruction;
  • Subject with moderate or more severe hydrothorax and ascites which are hard to control by conventional treatment and require continuous catheter drainage;
  • With an active malignant tumor in the past 5 years, unless it is a curable tumor and has been obviously cured, such as basal or squamous cell carcinoma, cervical or breast carcinoma in situ, etc.
  • Subject with positive hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb) and abnormal HBV DNA test results in peripheral blood (abnormal HBV DNA test results are defined as: HBV DNA quantitative level higher than the lower limit of the detection center or higher than normal range of the detection center; or qualitative HBV DNA test positive); Hepatitis C virus (HCV) antibody positive and peripheral blood hepatitis C virus (HCV) RNA positive; Human immunodeficiency virus (HIV) antibody positive; Cytomegalovirus ( CMV) DNA test positive; syphilis test RPR positive.
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  • With an uncontrollable active infection (except genitourinary system infection and upper respiratory tract infection <CTCAE Grade 2).
  • Severe heart disease: including but not limited to unstable angina, myocardial infarction (within 6 months before screening), congestive heart failure (New York Heart Association [NYHA] classification ≥ grade 3), severe arrhythmia.
  • Subject with hypertension that cannot be controlled by medication.
  • The toxicity of previous treatment has not been relieved to baseline or ≤1 (NCI-CTCAE v5.0, except for hair loss and laboratory abnormalities without clinical significance).
  • Major surgery within 2 weeks before enrollment, or has surgery planned during the time the subject is expected to be infused with RD133 or within 12 weeks after RD133 infusion (except planned surgery under local anesthesia).
  • Subject who has a solid organ transplant.
  • Women who are pregnant or breastfeeding.
  • Subject with previous central nervous system diseases (such as cerebral aneurysm, epilepsy, stroke, Alzheimer's disease, mental illness, etc.) or mental disorders.
  • Other unstable systemic diseases judged by the investigator: including but not limited to severe liver, kidney, or metabolic diseases that require medication.
  • Known to have life-threatening allergic reactions, hypersensitivity reactions or intolerances to RD133 cell preparations or its components.
  • Subject with hemorrhage, severe thrombosis judged by the Investigator, or hereditary/acquired hemorrhage and severe thrombosis (including hemophilia, coagulopathy, thrombocytopenia, hypersplenism, etc.), or are receiving thrombolytic or anticoagulant.
  • The researcher believes that other situations are not suitable for inclusion in the group.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Lingxiang Liu contact

llxlau@163.com

China1 site, 1 recruiting
  • The First Affiliated Hospital with Nanjing Medical University

    Nanjing, Jiangsu, 210029

    Lingxiang Liu, llxlau@163.com

    Recruiting

Other trials in China

About this study

Official title: An Exploratory Clinical Study to Evaluate the Safety and Efficacy of RD133 in Subjects With Relapsed or Refractory MSLN-Positive Solid Tumors

This study is a single-center exploratory clinical trial. It is estimated that 9-24 subjects will be enrolled. The "3+3" dose escalation design is adopted. The main purpose is to evaluate the safety of RD133 in the treatment of subjects with relapsed or refractory MSLN-positive solid tumors and explore the Recommend phase II dose of RD133 in the treatment of patients with relapsed/refractory MSLN-positive solid tumors.

Read the detailed description

Leukapheresis procedure will be performed to manufacture RD133 chimeric antigen receptor (CAR) modified T cells. Bridging therapy is allowed between PBMC collection and lymphodepletion. Lymphodepletion with fludarabine and cyclophosphamide was performed for three consecutive days. After 1-day rest, subjects will receive a single dose infusion of RD133 at 1.0, 3.0, or 6.0x 10^6 CAR+ T cells/Kg. Subjects will be followed in the study for a minimum of 2 years after RD133 infusion. Long-term follow-up for lentiviral vector safety will be followed for up to 15 years after RD133 infusion.

Conditions
Solid Tumor
Being tested
RD133
Keywords
mesothelin-positive solid tumor, CAR-T

What participants receive

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

  • RD133Drug

    The enhanced MSLN-CAR-T cell design of this study is obtained by co-infecting T cells with two lentiviral vectors. One lentiviral vector expresses CD19-CAR and tEGFR molecular safety switch, and the other lentiviral vector expresses MSLN- CAR and dnTGFβRII receptors. dnTGFβRII receptor without intracellular signal is used to resist the inhibition of T cell function by the immune microenvironment of tumor tissue. In addition, for the safety of CAR-T cell application in vivo, tEGFR is used in the CAR design as a molecular safety switch for CAR-T cells.

Study groups in NCT05166070
Study groupRoleWhat they receive
Administration of RD133ExperimentalThree dose groups of 1.0×10^6 CAR-T/kg, 3.0×10^6 CAR-T/kg, and 6.0×10^6 CAR-T/kg RD133 are designed in this study. 3 to 6 subjects are expected to be enrolled in each dose group according to observed DLT. RD133 will be intravenously infused at least 24 hours after lymphodepletion preconditioning. According to the assigned dose group, the designated dose of RD133 will be infused in a single infusion within 30 minutes on day 0.
Receives: Drug: RD133

What is being measured

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

  1. Type and incidence of dose-limiting toxicity (DLT) by dose group

    The number and percentage of DLT in each dose group

    Measured: 2 years post infusion

  2. Type and incidence of adverse events (AEs) and serious adverse events (SAEs) by dose group

    Calculate type and incidence of adverse events (AE), serious adverse event (SAE), including those happened after lymphodepletion and after infusion, those related to study drug and lymphodepletion, or those that led to withdrawal from the study. They will also be aggregated by systematic organ classification (SOC), preferred term (PT), and severity.

    Measured: 2 years post infusion

Secondary outcomes (9)
  1. Number of Participants With Adverse Events

    An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product

    Measured: 2 years post infusion

  2. Objective response rate (ORR)

    The proportion of subjects who have achieved best response of partial response (PR) or complete response (CR) according to the RECIST V1.1 evaluation criteria 3 months after RD133 cell infusion.

    Measured: 2 years post infusion

  3. Duration of response (DoR)

    The time from the date of initial documentation of CR/PR after RD133 cell infusion to the date of progressive disease or death due to the disease studied

    Measured: 2 years post infusion

  4. Time to response (TTR)

    The time from the date of RD133 cell infusion to the first efficacy evaluation of partial response (PR) or complete response (CR)

    Measured: 2 years post infusion

  5. Disease control rate (DCR)

    The proportion of subjects with best efficacy assessment of complete response (CR), partial response (PR) or stable disease (SD)

    Measured: 2 years post infusion

  6. Progression-free survival (PFS)

    The time from the date of RD133 cell infusion to the date of initial documentation of progressive disease/relapse or death from any cause

    Measured: 2 years post infusion

  7. Overall survival (OS)

    The time from the date of RD133 cell infusion to the date of death

    Measured: 2 years post infusion

  8. Transgene Levels of RD133

    Changes of virus vector copy number (VCN) in peripheral blood and tumor tissue (if any) after RD133 infusion

    Measured: 2 years post infusion

  9. Chimeric Antigen Receptor T (CAR-T) Positive Cell Concentration

    Changes of CAR T cell concentration in peripheral blood and tumor tissue (if any) after RD133 infusion

    Measured: 2 years post infusion

Timeline

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

  1. First posted21 Dec 2021
  2. Study start1 Jan 2022 (estimated)
  3. Primary completion1 Jan 2024 (estimated)
  4. Study completion1 Jan 2037 (estimated)

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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
The study is a single center, open label, non-controlled, exploratory study. The "3+3"dose escalation design will be implemented to evaluate the safety and tolerability of RD133 in the treatment of subjects with relapsed/refractory MSLN-positive solid tumors.
Masking
None (open label)
Enrolment
24 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05166070
Sponsor's protocol ID
RD133CI002
Status last verified
Dec 2021
First submitted
10 Nov 2021
Last updated
21 Dec 2021
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 Early Phase 1 study testing RD133 in people with Solid Tumor, run by The First Affiliated Hospital with Nanjing Medical University 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 10 inclusion and 18 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: looking for participants now, as of the sponsor's last update on 21 Dec 2021. 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Lingxiang Liu (llxlau@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Type and incidence of dose-limiting toxicity (DLT) by dose group (time frame: 2 years post infusion). 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 21 Dec 2021.

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