Defining ctDNA Metrics in Posttransplant Lymphoproliferative Disorder (PTLD)
- Conditions
- LymphomaLymphoma, B-Cell
- Interventions
- Registration Number
- NCT06954805
- Lead Sponsor
- Jennifer Amengual
- Brief Summary
The purpose of this study is to find out if there is a benefit to giving rituximab with etoposide, prednisone, vincristine, cyclophosphamide and doxorubicin (R-EPOCH) in participants who have high-risk B-cell PTLD in their 2nd phase of treatment (consolidation) while those with low-risk disease will be spared of chemotherapy and treated with rituximab consolidation alone.
This study is also being done to find out about the usefulness of circulating tumor DNA (ctDNA), a novel blood test which, has been shown to help guide treatment decisions in other types of lymphoma. The goal is to answer the question if ctDNA is a viable and informative tool in treating PTLD with the hope that in the future it may be used to individualize study treatment for participants with PTLD in a way that limits study treatment toxicity without losing the effectiveness of the treatment plan.
- Detailed Description
This is a multi-center, phase 2, open-label clinical trial to evaluate the efficacy of dose modified R-EPOCH in high-risk, treatment naïve CD20+ posttransplant lymphoproliferative disorder (PTLD) patients. The purpose of this study is to define the benefit of rituximab with etoposide, prednisone, vincristine, cyclophosphamide and doxorubicin (R-EPOCH) in patients who have high-risk B cell PTLD while those with low-risk disease will be spared of chemotherapy and treated with rituximab alone. Concurrently this study also seeks to evaluate the usefulness of circulating tumor DNA (ctDNA), a novel blood test which has been shown to improve a physician's ability to prognosticate and guide treatment decisions in other types of lymphoma. The goal is to demonstrate that ctDNA is a viable and informative tool in treating PTLD with the hope that in the future it may be used to individualize treatment for patients with PTLD in a way that limits treatment toxicity without losing the effectiveness of the treatment plan.
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 30
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Histologically confirmed CD20+ PTLD including the below subtypes:
- Polymorphic
- Monomorphic
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Age ≥ 15.
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Participants must have measurable disease, defined as lymph node ≥ 1.5 cm in greatest diameter per Lugano Classification
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Patients must have a PET-CT scan (preferred; alternatively CT chest, abdomen and pelvis with IV contrast) performed within 28 days prior to the start of the study.
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All participants must be screened for chronic hepatitis B virus (HBV) within 28 days prior to registration. Participants with known HBV infection (positive serology) must also have a HBV viral load performed within 28 days prior to registration, and participants must have an undetectable HBV viral load on suppressive therapy within 28 days prior to start of treatment. Participants found to be HBV carriers during screening are eligible and must receive standard of care prophylaxis. Participants with active Hepatitis B (HBV viral load > 500 IU/mL) within 28 days prior to registration are not eligible.
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Participants with a history of hepatitis C virus (HCV) infection must have been treated and cured. Participants with an active HCV infection who are currently on treatment must have an undetectable HCV viral load within 28 days prior to registration.
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Participants with known human immunodeficiency virus (HIV)-infection are eligible providing they are on effective anti-retroviral therapy and have undetectable viral load at their most recent viral load test (must be within 26 weeks prior to registration). Participants with known HIV must have a CD4 count checked within 28 days prior to registration, but may proceed with therapy regardless of CD4 count.
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Organ function as assessed by laboratory testing is in appropriate range for receipt of rituximab and R-EPOCH per individual treating physician discretion.
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Cardiac function testing is in appropriate range for receipt of rituximab and R-EPOCH per individual treating physician discretion.
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Eastern Cooperate Oncology Group (ECOG) performance status is in appropriate range for receipt of rituximab and R-EPOCH per individual treating physician discretion.
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Ability to understand and the willingness to sign a written informed consent document. In cases of partial impairment, impairment that fluctuates over time, or complete impairment due to dementia, stroke, traumatic brain injury, developmental disorders (including mentally disabled persons), serious mental illness, and delirium, a subject may be enrolled if the subject's legally authorized representative consents on the subject's behalf.
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Due to the potential teratogenic effects of chemotherapy, women of childbearing age must have a documented negative serum β-hCG measured within 2 weeks of starting treatment.
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Both women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence).
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Women must agree to not breastfeed during the entirety of the study period.
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Participants must not have had chemotherapy for other indications within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study and must have recovered from adverse events due to agents administered more than 4 weeks earlier.
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Participants must not have received more than a cumulative of dose 250 mg/m 2 of prior doxorubicin (or equivalent dose of another anthracycline, such as epirubicin) therapy (at any time prior to registration).
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Intrathecal chemotherapy administered for CNS prophylaxis is allowed in addition to protocol therapy per institution practice.
- Patients who have received systemic chemotherapy for PTLD.
- Patients who have known lymphomatous involvement of the central nervous system (CNS).
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Arm A (Low-risk) Rituximab Following completion of induction therapy, participants will be assigned to Arm A if they meet the following criteria: 1. Complete response to rituximab induction OR 2. Partial response to rituximab induction without any additional high-risk features. Low-risk participants will receive IV rituximab 375 mg/m2 every 21 days for 4 cycles. Arm A (Low-risk) CAPP-seq Following completion of induction therapy, participants will be assigned to Arm A if they meet the following criteria: 1. Complete response to rituximab induction OR 2. Partial response to rituximab induction without any additional high-risk features. Low-risk participants will receive IV rituximab 375 mg/m2 every 21 days for 4 cycles. Arm B (High-risk) Rituximab Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) Etoposide Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) Prednisone Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) Vincristine Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) Cyclophosphamide Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) Doxorubicin Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4 Arm B (High-risk) CAPP-seq Following completion of induction therapy, participants will be assigned to Arm B if they meet the following criteria: 1. Stable disease 2. Progressive disease OR 3. Partial response to rituximab induction with any of the following: * Residual bulky disease, defined as any single lesion measuring ≥ 7 cm or any 3 lesions each measuring ≥ 3 cm * High risk cytogenetic features including a complex karyotype (defined as ≥3 abnormalities on conventional karyotype), FISH positive for MYC rearrangement, double hit lymphoma (defined as MYC rearranged with BCL2 or BCL6), or p53 derangements * Plasmablastoid histology High-risk participants will receive R-EPOCH every 21 days for 4 cycles: * Rituximab 375 mg/m2 IV Day 1 * Etoposide 50 mg/m2 IV Day 1, 2, 3, 4 * Prednisone 60 mg/m2 PO Day 1, 2, 3, 4, 5 * Vincristine 0.4 mg/m2 IV Day 1, 2, 3, 4 * Cyclophosphamide 375 mg/m2 IV Day 5 * Doxorubicin 10 mg/m2 IV Day 1, 2, 3, 4
- Primary Outcome Measures
Name Time Method Number of participants with Complete Response (CR) rate of 60% or higher Up to 3 years to determine the rate of early molecular response to induction rituximab as well as correlate the experience of undetectable measurable residual disease at mid-consolidation and end of treatment
- Secondary Outcome Measures
Name Time Method Circulating tumor DNA (ctDNA) rate Up to 3 years to determine the rate of early molecular response to induction rituximab
Event Free Survival rate Up to 3 years EFS is defined as the duration of time from start of treatment to the time of any treatment failure including disease progression, death, and treatment discontinuation for any reason (e.g., adverse effects or withdrawal).
Measurable Residual Disease (MRD) rate 8 weeks MRD refers to the quantity of ctDNA that can be detected at any given time point following the start of treatment. Undetectable MRD (uMRD) will refer to quantities of ctDNA that fall below the threshold of detection for the CAPP-Seq assay. MRD will be determined by ctDNA assay at both mid-consolidation (between cycles 6 and 7) and EOT (within 8 weeks of C8D1).
Duration of Overall Response (OR) Up to 3 years Duration of overall response: The duration of overall response is measured from the time measurement criteria are met for Complete Response (CR) or Partial Response (PR) (whichever is first recorded) until the first date that recurrent or progressive disease is objectively documented (taking as reference for progressive disease the smallest measurements recorded since the treatment started).
Duration of stable disease Up to 3 years Stable disease is measured from the start of the treatment until the criteria for progression are met, taking as reference the smallest measurements recorded since the treatment started, including the baseline measurements.
Progression-Free Survival (PFS) rate Up to 3 years PFS is defined as the duration of time from start of treatment to time of progression or death, whichever occurs first.
Early Molecular Response (EMR) rate Up to 3 years EMR is defined as at least a 2-log fold reduction in circulating tumor DNA (ctDNA) levels between the start and completion of induction therapy.
Trial Locations
- Locations (2)
Stanford Medical Center
🇺🇸Stanford, California, United States
Columbia University Irving Medical Center
🇺🇸New York, New York, United States