Tafasitamab and Rituximab for Front-Line Treatment of Post-Transplant Lymphoproliferative Disorder
- Conditions
- Interventions
- Registration Number
- NCT05786040
- Lead Sponsor
- Timothy Voorhees
- Brief Summary
This phase II trial tests how well tafasitamab and rituximab work for front-line treatment of patients with post-transplant lymphoproliferative disorder. Post-transplant lymphoproliferative disorder (PTLD) is the name for types of lymphoma that sometimes develop in people who have had a transplant. It can affect people who are taking medicines to suppress th...
- Detailed Description
PRIMARY OBJECTIVE:
I. To estimate the rate of complete response (CR) after 4 cycles of weekly (or 7-day) treatments with combined rituximab and tafasitamab in subjects with post-transplant lymphoproliferative disorder (PTLD).
SECONDARY OBJECTIVES:
...
Recruitment & Eligibility
- Status
- RECRUITING
- Sex
- All
- Target Recruitment
- 28
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Written informed consent obtained to participate in the study and Health Insurance Portability and Accountability Act (HIPAA) authorization for release of personal health information
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Age >= 18 years at the time of consent
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Karnofsky scale > 30% or Eastern Cooperative Oncology Group (ECOG) =< 3 (can be assessed after pre-phase steroids)
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Histological evidence of B-cell PTLD (monomorphic and polymorphic) following solid organ transplantation; expresses CD19 and CD20, with or without EBV association, confirmed after biopsy or resection of tumor
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Measurable disease of > 1.5 cm in diameter and/or bone marrow involvement
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Subjects having undergone heart, lung, liver, kidney, pancreas, small intestine transplantation or a combination of the organ transplantations mentioned
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No prior lines of therapy for PTLD (palliative radiation, steroids, antiviral therapy, and reduction in immunosuppression are allowed)
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Human immunodeficiency virus (HIV) infection is allowed if viral load is undetectable at time of enrollment and CD4+ count > 200 cells/uL
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Expected survival greater than 30 days
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Absolute neutrophil count (ANC) >= 1.0 x 10^9/L (obtained within 14 days prior to initiating study treatment)
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Platelets >= 50 x 10^9/L (obtained within 14 days prior to initiating study treatment)
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Creatinine clearance (mL/min) >= 30 mL/min (obtained within 14 days prior to initiating study treatment)
- Cockcroft-Gault Equation
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Bilirubin =< 3.0 x upper limit of normal (ULN). Subjects with Gilbert's syndrome may be enrolled despite a total bilirubin level > 3.0 mg/dL if their conjugated bilirubin is =< 3.0 x ULN) (obtained within 14 days prior to initiating study treatment)
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Aspartate aminotransferase (AST) =< 3.0 x ULN (obtained within 14 days prior to initiating study treatment)
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Alanine aminotransferase (ALT) =< 3.0 x ULN (obtained within 14 days prior to initiating study treatment)
- Note: Hematology and other lab parameters that are =< grade 2 BUT still meet criteria for study entry are allowed. Furthermore, changes in laboratory parameters during the study should not be considered adverse events unless they meet criteria for dose modification(s) of study medication outlined by the protocol and/or worsen from baseline during therapy
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Females of childbearing potential must have a negative serum pregnancy test within 3 days prior to registration. NOTE: Females are considered of childbearing potential unless they are surgically sterile (have undergone a hysterectomy, bilateral tubal ligation, or bilateral oophorectomy) or they are naturally postmenopausal for at least 12 consecutive months. Documentation of postmenopausal status must be provided
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Females of childbearing potential must be willing to abstain from heterosexual activity or to use 2 forms of effective methods of contraception from the time of informed consent until 12 months after treatment the last dose of rituximab or tafasitamab. The two contraception methods can be comprised of two barrier methods, or a barrier method plus a hormonal method or an intrauterine device that meets < 1% failure rate for protection from pregnancy in the product label
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Male subjects with female partners must have had a prior vasectomy or agree to use an adequate method of contraception (i.e., double barrier method: condom plus spermicidal agent) starting with the first dose of study therapy through 12 months after the last dose of rituximab
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Subjects with prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the experimental regimen are eligible for the trial
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Subject is willing and able to comply with study procedures based on the judgement of the investigator or protocol designee
- Uncontrolled active infection. Patients requiring systemic therapy are eligible if the infection is deemed controlled by the investigator
- Post-transplant lymphoproliferative disorder following liquid transplantation
- Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use while the mother is being treated on study and lactating females must agree to not breastfeed while taking study drugs)
- Subjects with central nervous system (CNS) involvement by PTLD
- Uncontrolled concomitant illness including, but not limited to, symptomatic congestive heart failure (New York Heart Association [NYHA] class III or IV), unstable angina pectoris, myocardial infarction within 1 month prior to enrollment, uncontrolled cardiac arrhythmias, uncontrolled seizures, or severe non-compensated hypertension (systolic blood pressure >= 180 mmHg or diastolic blood pressure >= 120 mmHg)
- History of progressive multifocal leukoencephalopathy
- Active hepatitis B infection with positive viral polymerase chain reaction (PCR) from the blood. Subjects with active hepatitis B infection and undetectable viral PCR from the blood will be allowed with concurrent use of entecavir suppression
- Prior treatment for PTLD with the exception of radiation, antivirals, steroids and reduced immunosuppression
- Electrocardiogram (ECG) abnormality at screening has to be documented by the investigator as not medically relevant
- Any condition, including the presence of laboratory values which is deemed by the clinician to place the subject at an unacceptable risk or confounds the ability to interpret the data from this study
- Live virus vaccines must not be administered within 28 days of the start of study treatment
- Any investigational treatments must have been completed at least 7 days prior to the start of study treatment
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Treatment (tafasitamab, rituximab) Biospecimen Collection Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial. Treatment (tafasitamab, rituximab) Biopsy Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial. Treatment (tafasitamab, rituximab) Tafasitamab Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial. Treatment (tafasitamab, rituximab) Computed Tomography Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial. Treatment (tafasitamab, rituximab) Positron Emission Tomography Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial. Treatment (tafasitamab, rituximab) Rituximab Patients receive tafasitamab IV and rituximab IV or SC on study. Patients who have CR or PR after 4 cycles may receive additional tafasitamab and rituximab on study. Patients also undergo PET or CT, biopsy, and collection of blood samples throughout the trial.
- Primary Outcome Measures
Name Time Method Rate of patients who achieve a complete response (CR) within 1 week after 4 cycles of combined therapy Assessed using Lugano criteria. Will be calculated as the number of patients who achieve CR divided by the number of evaluable patients, and presented with the 95% binomial confidence interval.
- Secondary Outcome Measures
Name Time Method Overall survival From date of treatment initiation to date of death due to all causes, and censoring alive patients at date of last known follow-up, assessed up to 3 years Will be estimated using the Kaplan-Meier method.
Progression free survival From the date of treatment initiation to date of progression or death, whichever occurs first, censoring patients who are alive without progression at time of last known follow-up, assessed up to 3 years Will be estimated using the Kaplan-Meier method.
Overall response rate Up to 3 years Defined as clinical response (CR + partial response \[PR\]) after 4 cycles of weekly (or 7-day) treatments with combined rituximab and tafasitamab using Lugano criteria.
Best overall response Up to 3 years Defined as best clinical response (CR + PR) at the completion of either 4 cycles of weekly (or 7-day) treatments or 4 consolidation cycles (every 3 week) of combined rituximab and tafasitamab using Lugano criteria. Will be estimated and 95% confidence interval computed.
Incidence of adverse events Up to 28 days after the last dose of tafasitamab and rituximab Adverse events will be described and classified per the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 guidelines. The maximum grade of each type of toxicity will be extracted for each patient, and frequency counts will be tabulated to determine toxicity patterns, especially for grade 3 or above adverse events.
Rate of CR after completion of consolidation treatments Up to 3 years Will be estimated and 95% confidence interval computed.
Trial Locations
- Locations (3)
Rutgers Cancer Institute of New Jersey
🇺🇸New Brunswick, New Jersey, United States
University of North Carolina-Hillsborough Campus
🇺🇸Hillsborough, North Carolina, United States
Ohio State University Comprehensive Cancer Center
🇺🇸Columbus, Ohio, United States