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About
Participants with AL Amyloidosis will receive the drug daratumumab by IV infusion once weekly for two months, then every 2 weeks for four months, then once each month. Study treatment may continue until disease progression, unacceptable toxicity, or decision to withdraw from the trial. Disease evaluations will be performed every three months until disease progression.
Full description
This Phase I/II study is intended to evaluate the safety and tolerability of infusion of daratumumab in AL amyloidosis, specifically with respect to infusion reactions. In addition, the investigators would like to assess organ response with respect to cardiac biomarkers and proteinuria, as well as hematologic response and time to next treatment. Participants with AL Amyloidosis will receive the drug daratumumab by IV infusion once weekly for two months, then every 2 weeks for four months, then once each month. Study treatment may continue until disease progression, unacceptable toxicity, or decision to withdraw from the trial. Disease evaluations will be performed every three months until disease progression.
Enrollment
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Inclusion criteria
Histological diagnosis of primary systemic (AL) amyloidosis:
i. Monoclonal protein in the serum and/or urine by immunofixation electrophoresis AND/OR ii. Abnormal serum free light chain assay AND/OR iii. Clonal plasma cell population in the bone marrow demonstrated by immunohistochemistry, flow cytometry or in situ hybridization AND
c. Evidence of organ involvement other than carpal tunnel syndrome. Confirmation of tissue diagnosis at all sites of organ dysfunction is encouraged, but not required.
Must have relapsed after or been refractory to at least one prior treatment regimen of proven efficacy in the treatment of AL amyloidosis
Must be > 18 years of age.
Must have a performance status of 0-2 by Eastern Cooperative Oncology Group (ECOG) criteria
Must have adequate hepatic function as evidenced by serum bilirubin values < 2.0 mg/dL; alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) < 3x upper limit of normal (ULN).
Must have an absolute neutrophil count ≥1000/mm3, hemoglobin ≥7.5 g/dL, and platelet count ≥50×109/L
Exclusion criteria
• Renal Insufficiency (CrCL <20mL/min), calculated by Cockcroft-Gault Equation Creatinine Clearance = Sex * ((140 - Age) / (SerumCreat)) * (Weight / 72) Equation parameters such as sex have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (1), represent the values that will be used. The default unit of measure for weight is kilograms. Please verify that the correct unit of measure has been selected.
B-type Natriuretic Peptide; N-terminal pro b-type Natriuretic Peptide (NT-ProBNP) > 8500 ng/L (Mayo Stage IIIb patients are excluded)
New York Heart Association (NYHA) classification IIIB or IV heart failure
Unstable Angina, Arrhythmia, prolonged corrected QT (QTc) interval, symptomatic orthostatic hypotension, or supine systolic blood pressure < 90 mm Hg.
left ventricular ejection fraction (LVEF) <40%
Overt multiple myeloma (>30% bone marrow plasmacytosis, extensive (>2) lytic lesions, or hypercalcemia).
Plan for autologous stem cell transplant in the six months prior to study drug (stem cell collection is permitted during the first six months of study treatment)
Any form of secondary or familial (ATTR) amyloidosis
The presence or history of another malignancy is not allowed except for the following:
Known to be Human Immunodeficiency Virus (HIV) positivity.
Pregnant or nursing women. Women and men of reproductive potential may not participate unless they have agreed to use an effective contraceptive method.
Known chronic obstructive pulmonary disease (COPD) with a forced expiratory volume at one second (FEV1) <50% of predicted normal. Note that forced expiratory volume at one second FEV1 testing is required for patients suspected of having COPD.
Known moderate or severe persistent asthma within the past 2 years or currently has uncontrolled asthma of any classification
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22 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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