Relmacabtagene Autoleucel Combined With Sintilimab for Relapsed/Refractory B-cell Lymphoma

NCT ID: NCT07077512

Last Updated: 2026-01-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-15

Study Completion Date

2027-07-15

Brief Summary

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This is a prospective, single-arm, multicenter, phase II clinical trial to evaluate the efficacy and safety of Relmacabtagene Autoleucel in combination with the Sintilimab regimen for the treatment of relapsed/refractory B-cell lymphoma

Detailed Description

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Relmacabtagene Autoleucel treatment: Patients will receive intravenous fludarabine (25 mg/m²/day for 3 days) and cyclophosphamide (250 mg/m²/day for 3 days) for lymphodepletion, with adjustments based on hematologic and renal function.Relmacabtagene Autoleucel will be reinfused 2 to 7 days after lymphodepletion.

Sintilimab treatment: Patients will receive intravenous Sintilimab (200 mg every 3 weeks) starting on Day 28 after reinfusion, continuing until disease progression or intolerable toxicity, with a maximum duration of 1 year.

Primary endpoint: The complete response rate (CRR) at 3 months.

Conditions

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Large B Cell Diffuse Lymphoma Mantle Cell Lymphoma (MCL) Follicular Lymphoma ( FL)

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Relmacabtagene Autoleucel in combination with Sintilimab

Patients with CD19-positive relapsed/refractory B-cell lymphoma will receive Relmacabtagene Autoleucel after lymphodepletion therapy (fludarabine + cyclophosphamide) on Day 1. After Relmacabtagene Autoleucel infusion, sintilimab (200 mg IV) will begin on Day 28, administered every 3 weeks until disease progression or intolerable toxicity, with a maximum duration of 1 year.

Group Type EXPERIMENTAL

Autoleucel (Relmacabtagene Autoleucel)

Intervention Type DRUG

Relmacabtagene Autoleucel will be reinfused 2 to 7 days after lymphodepletion (fludarabine + cyclophosphamide).

Sintilimab (PD-1 inhibitor)

Intervention Type DRUG

Patients will receive intravenous Sintilimab (200 mg every 3 weeks) starting on Day 28 after reinfusion, continuing until disease progression or intolerable toxicity, with a maximum duration of 1 year.

Interventions

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Autoleucel (Relmacabtagene Autoleucel)

Relmacabtagene Autoleucel will be reinfused 2 to 7 days after lymphodepletion (fludarabine + cyclophosphamide).

Intervention Type DRUG

Sintilimab (PD-1 inhibitor)

Patients will receive intravenous Sintilimab (200 mg every 3 weeks) starting on Day 28 after reinfusion, continuing until disease progression or intolerable toxicity, with a maximum duration of 1 year.

Intervention Type DRUG

Other Intervention Names

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Chimeric Antigen Receptor T-Cell (CAR-T) Therapy PD-1 Inhibitor

Eligibility Criteria

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Inclusion Criteria

1. The patient must be aware of and voluntarily sign the informed consent form (ICF).
2. Aged between 18 and 70 years, both male and female.
3. Pathologically diagnosed with DLBCL, FL, or MCL, with histological confirmation of CD19 positivity (immunohistochemistry or flow cytometry, with flow cytometry used for re-evaluation if immunohistochemistry is CD19-negative).
4. The patient must be willing to receive regorafenib and sintilimab treatment and be deemed suitable for this treatment by the investigator.
5. Relapsed/refractory DLBCL, FL, or MCL.
6. At least one measurable or evaluable lesion.
7. Eastern Cooperative Oncology Group (ECOG) performance status score of 0-2.
8. Expected survival of ≥3 months.
9. Adequate function of the heart, lungs, liver, kidneys, and other organs.

Exclusion Criteria

1. History of another malignancy that has not been in complete remission for at least 2 years, except for: non-melanoma skin cancer, completely resected stage I tumors with low recurrence potential, treated localized prostate cancer, biopsy-confirmed cervical carcinoma in situ, or squamous intraepithelial lesions detected by Pap smear and so on.
2. Active Hepatitis B: a) Positive for Hepatitis B surface antigen (HBsAg) and/or Hepatitis B core antibody (HBcAb) , with HBV-DNA below the lower limit of the reference value can be included.
3. Hepatitis C, HIV, or syphilis infection.
4. Uncontrolled systemic fungal, bacterial, viral, or other infections.
5. Acute or chronic graft-versus-host disease (GVHD).
6. Known hypersensitivity or allergy to any study drug or excipient.
7. Clinically significant central nervous system (CNS) disease or symptoms, such as epilepsy, seizures, paralysis, aphasia, stroke, severe brain injury, dementia, Parkinson's disease, cerebellar disease, organic brain syndrome, or psychiatric illness.
8. Pregnant or breastfeeding women, and women of childbearing age who do not wish to use contraception.
9. Mentally ill individuals or those unable to provide informed consent.
10. The investigator deems the patient unsuitable for the study due to medical, psychological, familial, social, or geographical reasons or an inability to comply with the study protocol.
11. Previous CAR-T cell therapy or other gene-modified T-cell treatments.
12. Previous CD19-targeted therapy.
13. Previous allogeneic hematopoietic stem cell transplantation.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fifth Affiliated Hospital of Guangzhou Medical University

OTHER

Sponsor Role collaborator

Guangzhou Overseas Chinese Hospital,Guangdong

UNKNOWN

Sponsor Role collaborator

Sun Yat-sen University

OTHER

Sponsor Role lead

Responsible Party

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Qingqing Cai

chief physician

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sun Yat-sen Universitiy Cancer Center

Guangzhou, , China

Site Status RECRUITING

Fifth Affiliated Hospital of Guangzhou Medical University

Guangzhou, , China

Site Status NOT_YET_RECRUITING

Guangzhou overseas Chinese hospital

Guangzhou, , China

Site Status NOT_YET_RECRUITING

Countries

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China

Central Contacts

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Qingqing Cai, MD. PhD

Role: CONTACT

02087342823

Yi Xia, MD. PhD

Role: CONTACT

02087342823

Facility Contacts

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Qing qing Cai, MD. PhD

Role: primary

0086-20-87342823

Yi Xia, MD. PhD

Role: backup

0086-20-87342823

Runhui Zheng

Role: primary

13560225061

liye zhong

Role: primary

13924200567

Other Identifiers

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B2025-263-01

Identifier Type: -

Identifier Source: org_study_id

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