Adaptive Bridging RT in R/R B-cell Lymphoma (Pre-CAR T)

NCT ID: NCT06004167

Last Updated: 2025-12-09

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

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-14

Study Completion Date

2024-12-01

Brief Summary

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Participants are invited to take part in this research study because they have relapsed (cancer has come back) or refractory (cancer has not responded to treatment) B-cell Lymphoma and will be undergoing CAR T-cell Therapy.

This research is being done to see if a new radiation therapy administration schedule will positively impact the logistics, time, cost, and side effects of radiation therapy.

In this research study, participants will receive radiation therapy once weekly for 5 weeks. This is a novel administration schedule and we're looking to see how this schedule impacts side effects participants may experience, the time spent receiving radiation therapy, how much radiation therapy participants can receive, and how effective this new schedule is.

Detailed Description

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This is a feasibility/pilot study of 5 Gy adaptive radiation administered every 5 business days (1 week apart) for 5 weeks prior to standard of care CAR T-cell therapy infusion. Approximately 10 participants with Relapsed/Refractory B-cell Lymphoma will take part in this research study. The primary objective is to assess the feasibility of once weekly radiation therapy for 5 weeks.

Conditions

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Lymphoma, B-Cell Relapsed Cancer Refractory Lymphoma Diffuse Large B Cell Lymphoma Mediastinal Large B-cell Lymphoma High-grade B-cell Lymphoma Follicular Lymphoma Mantle Cell Lymphoma

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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5-5-5 Adaptive Bridging Radiation Therapy (ABRT)

5 Gy of adaptive radiation delivered every 5 business days (1 week apart) for up to 5 weeks prior to CAR T-cell therapy infusion

Group Type EXPERIMENTAL

Adaptive Bridging Radiation Therapy (ABRT)

Intervention Type RADIATION

Radiation Therapy

Interventions

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Adaptive Bridging Radiation Therapy (ABRT)

Radiation Therapy

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of relapsed or refractory B-cell lymphoma (including, but not limited to diffuse large B-cell lymphoma (DLBCL) not otherwise specified, primary mediastinal large B-cell lymphoma, high grade B-cell lymphoma, DLBCL arising from follicular lymphoma, follicular, and mantle cell lymphoma)
* Being planned to undergo CAR T-cell therapy (patients can be enrolled prior to apheresis)
* At least 1 measurable lesion according to the Lugano criteria35. Lesions that have been previously irradiated will be considered measurable only if progression has been documented following completion of radiation therapy. Re-irradiation is allowed for these patients. More than 1 lesion can be targeted as per radiation oncologist discretion. If disease is palpable, physical examination alone may be sufficient measurement for disease if a recent PET/CT or CT is not available as a radiologic measurement of the disease can be obtained during CT simulation.
* Age ≥ 18 years
* Eastern Cooperative Oncology Group (ECOG) performance status of less than or equal to 3.
* Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria

* Any medical condition likely to interfere with assessment of safety or efficacy of RT.
* CNS-only disease as the site for bridging radiation therapy (which cannot be reliably evaluated on CT). Patients with CNS disease with extra-axial involvement that can be evaluated on CT remain eligible.
* Patient likely unable to lay supine for 45 minutes
* Women of child-bearing potential who are pregnant because of the potentially dangerous effects of the preparative chemotherapy on the fetus or infant. Females who have undergone surgical sterilization or who have been postmenopausal for at least 2 years are not considered to be of childbearing potential
* In the investigator's judgment, the subject is unlikely to complete all protocol-required study visits or procedures, including follow-up visits, or comply with the study requirements for participation.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Varian Medical Systems

INDUSTRY

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Chirayu Patel

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Chirayu Patel, MD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Dana-Farber Cancer Institute

Boston, Massachusetts, United States

Site Status

Countries

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United States

References

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Ababneh HS, Ng AK, Wan J, Walburn T, Zhu L, Bobic M, Johnson PC, Bredtfeld J, Leeman J, Soumerai J, Abramson JS, Barnes J, Takvorian R, Frigault MJ, Pursley J, Patel CG. 5-5-5 ABRT (Dose of 5 Gy per Fraction for up to 5 Fractions Over 5 Weeks Adaptive Bridging Radiation Therapy)-Artificial Intelligence Enters the CAR (-T) (Chimeric Antigen Receptor-T) in Relapsed/Refractory Large B Cell Lymphoma. Int J Radiat Oncol Biol Phys. 2025 Jul 15;122(4):936-948. doi: 10.1016/j.ijrobp.2025.03.023. Epub 2025 Apr 3.

Reference Type DERIVED
PMID: 40178467 (View on PubMed)

Other Identifiers

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23-364

Identifier Type: -

Identifier Source: org_study_id

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