A Study of CAR-T Cells Targeting GPRC5D in the Treatment of r/r Multiple Myeloma

October 30, 2022 updated by: He Huang, Zhejiang University

A Single Arm, Open Label Clinical Study of CAR-T Cells Targeting GPRC5D in the Treatment of Relapsed / Refractory Multiple Myeloma(POLARIS)

This is a single-arm, open-label, dose-escalation study to evaluate the safety, tolerability, cellular kinetics and initial efficacy of CAR-T cell therapy targeting GPRC5D in multiple myeloma subjects who have failed the standard treatments.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
15

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310003
        • The first affiliated hospital of medical college of zhejiang university

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. The subject can understand and have the ability to sign an informed consent form;
  2. Male or female subjects, aged 18-75 years;
  3. The expected survival period is not less than 12 weeks;
  4. ECOG score ≤ 2 ;
  5. Diagnosed as multiple myeloma according to the IMWG standard in 2018;

  6. The expression of GPRC5D in bone marrow plasma cells is more than 20%, or it is positive in tumor tissue by immunohistochemistry. One of the following criteria must be detected:

    1. If IgG type MM, serum M protein ≥10g/L; if IgA, IgD, IgE or IgM type MM, serum M protein ≥5g/L;
    2. Or urine M protein level ≥200mg/24h;
    3. Or light chain type MM, serum free light chain (sFLC) ≥ 100mg / L and K/ λ FLC ratio is abnormal;
    4. Or there are extramedullary lesions;
  7. Subjects who have received at least 3 different mechanism drugs (including chemotherapy, protease inhibitors, immunosuppressive agents, etc.) have failed treatments, or have progressed or recurred during the last treatment or within 6 months after the end of treatment ;
  8. Lung function is normal, and oxygen saturation is greater than 92%;
  9. No heart disease or coronary heart disease, echocardiogram showed normal diastolic function, left ventricular ejection fraction (LVEF) ≥50%, and no serious arrhythmia;
  10. Liver function: TBIL<3×ULN, AST<2.5×ULN, ALT<2.5ULN;
  11. Renal function: creatinine clearance rate (estimated by Cockcroft Gault formula) ≥ 30 mL/min;

  12. The blood routine meets the following standards:

    1. Lymphocyte count>0.5×10e9/L;
    2. Neutrophils ≥1.0×10e9/L;
    3. Hemoglobin ≥80g/L;
    4. Platelet ≥75×10e9/L
  13. From the use of study drug to 2 years after treatment, male subjects or female subjects of childbearing age must agree and be able to take effective contraceptive measures.

Exclusion Criteria:

  1. Pregnant or breastfeeding;
  2. HBsAg or HBcAb are positive, and the quantitative detection of HBV DNA in peripheral blood is more than 100 copies / L; HCV antibody and HCV RNA in peripheral blood are positive; HIV antibody positive; Syphilis antibody is positive in the first screening;
  3. Any unstable systemic disease: including but not limited to unstable angina, cerebrovascular accident or transient cerebral ischemia (within 6 months before screening), myocardial infarction (within 6 months before screening), congestive heart failure (New York Heart Association [NYHA] classification ≥ grade III), severe arrhythmia with poor drug control, liver, kidney or metabolic diseases;
  4. Had hypersensitivity or intolerance to any drug used in this study;
  5. Patients who received anti-cancer chemotherapy or other medications within 2 weeks before screening;
  6. Uncontrolled malignant tumors except MM, excluding malignant tumors that received radical treatment and no active disease was found within 3 years before enrollment;
  7. Clinically significant central nervous system diseases, such as epilepsy, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, psychosis, active central nervous system involvement or cancerous meningitis;
  8. In the past two years, autoimmune diseases (such as Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus) caused damage to terminal organs, or required systemic application of immunosuppressive or other drugs;
  9. Severe active viral, bacterial or uncontrolled systemic fungal infections; Hereditary bleeding / coagulation diseases, history of non traumatic bleeding or thromboembolism, other diseases that may increase the risk of bleeding, etc;
  10. Patients who received autologous hematopoietic stem cell transplantation (ASCT) within 8 weeks before screening, or who plan to undergo ASCT during the study period;
  11. Patients received allogeneic stem cell therapy;
  12. Any unsuitable to participate in this trial judged by the investigator.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment Group
This is a open label, single arm clinical trial.
Drug: GPRC5D-CAR-T
After enrollment, subjects complete the PBMC apheresis, then complete the Lymphocyte clearance, and then receive the dose climbing test: 1×10e6/kg，3×10e6/kg，6×10e6/kg.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Dose limited toxicity (DLT)
Time Frame: From date of initial treatment to Day 28 post GPRC5D CAR-T infusion.
Dose limited toxicity
From date of initial treatment to Day 28 post GPRC5D CAR-T infusion.
AE and SAE
Time Frame: From admission to the end of the follow-up, up to 2 years
Adverse event and serious adverse event
From admission to the end of the follow-up, up to 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Concentration of CAR-T cells
Time Frame: From admission to the end of the follow-up, up to 2 years
In peripheral blood and bone marrow
From admission to the end of the follow-up, up to 2 years
Objective Response Rate, ORR
Time Frame: In 3 months of GPRC5D CAR-T cell infusion
Proportion of subjects with complete or partial remission
In 3 months of GPRC5D CAR-T cell infusion
Disease control rate, DCR
Time Frame: From Day 28 GPRC5D CAR-T infusion up to 2 years
The percentage of patients with remission and stable disease after treatment in the total evaluable cases.
From Day 28 GPRC5D CAR-T infusion up to 2 years
Duration of remission, DOR
Time Frame: 24 months post GPRC5D CAR-T cells infusion
The time from the first assessment of remission or partial remission of the tumor to the first assessment of disease progression or death from any cause;
24 months post GPRC5D CAR-T cells infusion
Progression-free survival, PFS
Time Frame: 24 months post GPRC5D CAR-Tcells infusion
The time from cell reinfusion to the first assessment of tumor progression or death from any cause
24 months post GPRC5D CAR-Tcells infusion
Overall survival, OS
Time Frame: From GPRC5D CAR-T infusion to death，up to 2 years
The time from the cell reinfusion to death due to any cause.
From GPRC5D CAR-T infusion to death，up to 2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Zhejiang University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
OriCell Therapeutics Co., Ltd.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Huang He, Hematology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 8, 2021

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 30, 2024

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 30, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 6, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 20, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 23, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 1, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 30, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • POLARIS (Alias Study Number)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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