Sequential Infusion of Anti-CD19 and Anti-CD20 CAR-T Cells Against Relapsed and Refractory B-cell Lymphoma

Sequential Infusion of Anti-CD19 and Anti-CD20 Chimeric Antigen Receptor(CAR) T Cells Against Relapsed and Refractory B-cell Lymphoma

Cluster of differentiation antigen 19(CD19) specifically presents in B lymphocyte cell lines steadily,while not in most normal tissue,including pluripotent hematopoietic stem cells.Cluster of differentiation antigen 20(CD20) presents in 90% of B-cell lymphomas.CD19 antigen is a well-established target for B-cell lymphomas treatment as well as CD20 antigen.Both CD19-targeting CAR T Cells and CD20-targeting CAR T Cells can be used as adoptive cellular immunotherapies for B-cell lymphomas.Though two kinds of single target treatments were proved can induce recession of B-cell lymphomas, the risk of cancer cells to escape and tumor recurrence are still existed. There are no report about combination transfer of two kinds of single target treatments.This research aimed emphasis on safety and therapeutic efficacy evaluation,as well as if combination transfer can decrease recurrence rate.

Study Overview

Detailed Description

To determine:

Primary Outcome Measure:

The Overall complete remission rate and one-year survival rate of combination transfer of CD19-targeting CAR T Cells and CD20-targeting CAR T Cells is superior to or at least not worse than two kinds of single target treatments in the treatment of CD19+/CD20+ B-cell lymphomas.

The risk of cancer recurrence in a year of combination transfer of CD19-targeting CAR T Cells and CD20-targeting CAR T Cells is inferior to two kinds of single target treatments.

Secondary Outcome Measures:

Evaluate the initial effect time, time to disease progression, and life quality improvement of combination transfer compare to single target treatments.

Evaluate the safety and tolerability of combination transfer compare to single target treatments by observation of high fever duration in patients and testing related cell factor level in peripheral blood.

Study Type

Interventional

Enrollment (Anticipated)

20

Phase

  • Phase 2
  • 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

    • Jingan
      • Shanghai, Jingan, China, 200072
        • Recruiting
        • Shanghai Longyao Biotechnology Inc., Ltd.
        • Contact:

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

Ages Eligible for Study

14 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 18 Years to 70 Years, Male and female
  • Survival time>12 weeks
  • B cell lymphomas diagnosed by Physical examination,pathological examination,Laboratory tests and imaging tests
  • Chemotherapy failure or recurrent B cell lymphomas
  • Creatinine< 2.5mg/dl
  • Glutamic-pyruvic transaminase, glutamic oxalacetic transaminase< 3 fold of normal level
  • Bilirubin<2.0mg/dl
  • Karnofsky Performance Status>50% at the time of screening
  • Adequate pulmonary, renal, hepatic, and cardiac function
  • Fail in autologous or allogenic haemopoietic stem cell transplantation
  • Free of leukocytes removal contraindications
  • Voluntarily join CAR-T clinical trial
  • Understand and sign written informed consent

Exclusion Criteria:

  • Pregnant or nursing women or women with pregnancy plan in half a year
  • Any infectious disease (HIV, active tuberculosis, ect.)
  • Active hepatitis B, active hepatitis C infection
  • Feasibility assessment proves that the efficiency of transduction of lymphocyte is below 10% or the lymphocyte amplification is below 5 fold with the costimulation of cluster of differentiation 3(CD 3)and cluster of differentiation 8(CD 8)
  • Abnormal vital signs or cannot cooperate with the inspectors
  • mental or psychological disease cannot cooperate with treatment and curative effect evaluation
  • Highly allergic constitution or history of severe allergies, especially allergy to interleukin-2(IL-2)
  • General infection or local severe infection, or other infection that is not controlled
  • Dysfunction in lung, heart, kidney and brain
  • Severe autoimmune diseases
  • Other symptoms that are not applicable for CAR-T

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
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Mixed CD19/CD20 CAR-T Transfer
Subjects with CD19+/CD20+ B-cell lymphomas will be infused with CD19-targeting CAR T Cells and CD20-targeting CAR T Cells in one time or in parts
Autologous CD19 CAR-T cells and CD20 CAR-T cells with average 1-5*10^6 cells/kg body weight,separately.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall complete remission rate
Time Frame: Half a year
The complete remission rate will be evaluated by routine methods.
Half a year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The initial effect time
Time Frame: 1 year
The initial effect time will be recorded.
1 year
The one-year survival rate
Time Frame: 1 year
The one-year survival rate will be recorded.
1 year
The safety and the tolerability(incidence of treatment-emergent adverse events defined as dose-limited toxicity)
Time Frame: 1 month
Number of participants with treatment-related adverse events as assessed by CTCAE v4.0.
1 month
The time to disease progression
Time Frame: 1 year
The time to disease progression will be counted after complete remission.
1 year
The one-year recurrence
Time Frame: 1 year
The one-year recurrence will be counted after complete remission.
1 year
The life quality improvement
Time Frame: 1 year
The life quality improvement will be evaluated by appetite,sleep,pain and mental state.
1 year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Shengqin Ye, M.D., Shanghai Longyao Biotechnology Inc., Ltd.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

March 1, 2017

Primary Completion (Anticipated)

February 28, 2019

Study Completion (Anticipated)

February 28, 2020

Study Registration Dates

First Submitted

June 23, 2017

First Submitted That Met QC Criteria

June 29, 2017

First Posted (Actual)

July 2, 2017

Study Record Updates

Last Update Posted (Actual)

July 2, 2017

Last Update Submitted That Met QC Criteria

June 29, 2017

Last Verified

June 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

  • LYCT-1701

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

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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