The purpose of this study is to investigate whether teclistamab-daratumumab combination is effective and safe in AL amyloidosis. The study treatment is divided into cycles (C) and each cycle is 28 days (D). Study treatment is expected to last 6 months.
The purpose of this study is to assess the effectiveness and safety of teclistamab-daratumumab combination in newly diagnosed AL amyloidosis. The study aims to evaluate whether this combination is able to effectively decrease the level of toxic amyloid-producing light chains circulating in the participants' blood, with the overarching goal of avoiding organ damage, improving organ function, and prolonging life.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
25
Teclistamab is a T-cell redirecting bispecific antibody (BsAb) targeting CD3 on T-cells and B-cell maturation antigen (BCMA) on plasma cells.
Daratumumab is an monoclonal antibody that targets the CD38 protein on the surface of myeloma cells.
Boston Medical Center
Boston, Massachusetts, United States
NOT_YET_RECRUITINGColumbia University Irving Medical Center
New York, New York, United States
RECRUITINGMedical College of Wisconsin
Milwaukee, Wisconsin, United States
RECRUITINGHematologic Complete Response (Heme-CR) rate
Heme-CR will be defined as: involved free light-chain level less than the upper limit of the normal range with negative serum and urine immunofixation; normalization of the uninvolved free light-chain level or free light-chain ratio will not be required to determine a complete response.
Time frame: 6 months from treatment initiation
Minimal Residual Disease (MRD) negativity rate by Free Light Chain Mass Spectrometry (FLC-MS) in serum
Secondary outcome is to assess the rate of minimal residual disease (MRD)-negativity and sustained MRD-negativity with Teclistamab-Daratumumab
Time frame: 1 month, 3 months, 6 months, and 18 months
MRD-negativity rate by multiparameter flow cytometry (MFC) in bone marrow
The MRD-negativity rate by 6 and 18 months will be reported descriptively.
Time frame: 6 months and 18 months
Time to heme-CR
Time to heme-CR will be calculated from the day of treatment initiation (C1D0), and will be reported as median (range).
Time frame: Day 1 of each cycle, and every 6 weeks after treatment cessation (up to 1 year)
Major organ deterioration-progression-free survival (MOD-PFS) rate
MOD-PFS will be calculated as a time-to-event endpoint using Kaplan-Meier method.
Time frame: From Cycle 2 to Cycle 6 Day 1 (Each cycle is 28 days), End of treatment visit (up to 6 months from treatment initiation), and up to 18 months from treatment initiation
Overall survival rate
Overall survival frequency from initiation of study drug, including cause of death for patients who die on study
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Time frame: Through study completion, up to 18 months from treatment initiation
Frequency of Cytokine Release Syndrome (CRS)
Frequency of CRS (all-grade and grade ≥3) events
Time frame: Throughout Cycle 1 (each cycle is 28 days), Day 0, Day 1, Day 3, Day 8, Day 15, Day 22; Throughout Cycle 2 and Cycle 6 on Day 1 and Day 15; End of treatment visit (up to 6 months from treatment initiation), Post treatment follow-up (up to 18 months)
Rate of infections
Frequency rate of infections (all-grade and grade ≥3) will be reported descriptively.
Time frame: Throughout Cycle 1 (each cycle is 28 days), Day 0, Day 1, Day 3, Day 8, Day 15, Day 22; Throughout Cycle 2 and Cycle 6 on Day 1 and Day 15; End of treatment visit (up to 6 months from treatment initiation), Post treatment follow-up (up to 18 months)
Number of participants with a heart response after treatment
Heart response is defined as N-terminal pro Brain Natriuretic Peptide (NT-ProBNP) response (\>30% and \>300 ng/l decrease in subjects with baseline NT-proBNP\>650 ng/l) or New York Heart Association (NYHA) class response (\>2 class decrease in subjects with baseline NYHA class 3 or 4)
Time frame: 6 months and 18 months
Number of No Responses in the heart after treatment
No response in the heart is defined as ≤30% reduction in NT-proBNP from baseline
Time frame: 6 months and 18 months
Number of Partial Responses (PR) in participants who experienced a heart response after treatment
Partial Response in the heart is defined as 31-60% reduction in NT-proBNP from baseline.
Time frame: 6 months and 18 months
Number of Very Good Partial Responses (VGPR) in participants who experienced a heart response after treatment
VGPR in the heart is defined as \>60% reduction in NT-proBNP from baseline to a nadir of \>350 ng/L
Time frame: 6 months and 18 months
Number of Complete Response (CR) in participants who experienced a heart response after treatment
Complete Response in the heart is defined as Nadir NT-proBNP≤350 ng/L
Time frame: 6 months and 18 months
Number of participants with heart progression after treatment
Heart progression is defined as NT-proBNP progression (\>30% and \>300 ng/l increase) or cardiac troponin progression (\>33% increase) or ejection fraction progression (\>10% decrease). Subjects with progressive worsening renal function cannot be scored for NT-proBNP progression.
Time frame: 6 months and 18 months
Number of participants with a kidney response after treatment
Kidney response is defined as 50% decrease (at least 0.5 g/day) of 24-h urine protein (urine protein must be \>0.5g/day pretreatment). Creatinine and creatinine clearance must not worsen by 25% over baseline.
Time frame: 6 months and 18 months
Number of No Responses in the kidneys after treatment
No response in the kidneys is defined as ≤30% reduction in proteinuria from baseline
Time frame: 6 months and 18 months
Number of Partial Responses (PR) in participants who experienced a kidney response after treatment
Partial Response in the kidneys is defined as 31-60% reduction in proteinuria from baseline
Time frame: 6 months and 18 months
Number of Very Good Partial Responses (VGPR) in participants who experienced a kidney response after treatment
VGPR in the kidneys is defined as \>60% reduction in proteinuria from baseline level to a nadir level \>200 mg/24 hours
Time frame: 6 months and 18 months
Number of Complete Response (CR) in participants who experienced a kidney response after treatment
Complete Response in the kidneys is defined as Nadir proteinuria ≤200 mg/24 hours
Time frame: 6 months and 18 months
Number of participants with kidney progression after treatment
Kidney progression is defined as 50% increase (at least 1 g/day) of 24-h urine protein to \>1 g/day or 25% worsening of serum creatinine or creatinine clearance.
Time frame: 6 months and 18 months
Number of participants with liver response after treatment
Liver response is defined as 50% decrease in abnormal alkaline phosphatase value.
Time frame: 6 months and 18 months
Number of No Responses in the liver after treatment
No response in the liver is defined as ≤30% reduction in alkaline phosphatase (ALP) from baseline.
Time frame: 6 months and 18 months
Number of Partial Responses (PR) in participants who experienced liver response after treatment
Partial Response in the liver is defined as 31-60% reduction in ALP from baseline.
Time frame: 6 months and 18 months
Number of Very Good Partial Responses (VGPR) in participants who experienced liver response after treatment
VGPR in the liver is defined as \>60% reduction in ALP from baseline to a nadir \>2x lower limit of normal (LLN)
Time frame: 6 months and 18 months
Number of Complete Response (CR) in participants who experienced liver response after treatment
Complete Response in the liver is defined as Nadir ALP ≤2X LLN
Time frame: 6 months and 18 months
Number of participants with liver progression after treatment
Liver progression is defined as 50% increase of ALP from nadir value
Time frame: 6 months and 18 months