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← Primary Systemic Amyloidosis

NCT03499808 · STUDY IN CONTEXT

S1702 Isatuximab in Treating Patients With Relapsed or Refractory Primary Amyloidosis

Draft scope assessment: narrower. Linked by condition-string match at the cancer-entity level. The study's eligibility - stage, biomarker, treatment line and prior therapy - has not been reconciled against this page's definition, so its population is narrower than this page in ways not yet recorded. The condition was transformed or resolved through the terminology hierarchy to reach this cancer type, so the link itself is a candidate a reviewer must confirm. Found by searching ClinicalTrials.gov for this cancer type, restricted to studies that have posted results to the registry. No FDA notice, FDA label or NCI summary held by this site cites this study. Because the search asked for posted results, studies without posted results were never looked for, so their absence from this page means nothing.

Read the full study record and all posted results →

Linked outcomes

Measures are not ranked. Open each original source section for treatment groups, denominators, units and results.

primary · POSTED

To assess the efficacy as measured by the confirmed overall hematologic response rate (partial response, very good partial response, complete response) of isatuximab in relapsed/ refractory systemic light chain (AL) amyloidosis. Measured as rate of partial response or better. Partial response is defined as a dFLC decrease of ≥ 50%, but remaining \> 4.0 mg/dL. Very good partial response is defined as the difference between involved and uninvolved FLCs \[dFLC\] \< 4.0 mg/dL. Complete response is defined as laboratory values within the normal range free light chain (FLC) ratio (0.25 - 1.65) and negative serum and urine immunofixation.

35 participants who received treatment and are analyzable.

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secondary · POSTED

Only adverse events that are possibly, probably or definitely related to study drug are reported.

Participants who completed at least one day of treatment.

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secondary · POSTED

Overall survival is measured from date of registration to date of death due to any cause. Patients last known to be alive are censored at date of last contact. While OS was assessed up to 4 years, 4 year estimates were not reached. We are reporting the 24 month estimate (how many participants reached survival time of at least 24 months).

35 eligible participants who received at least one dose of study drug.

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secondary · POSTED

Duration of response is measure as time between hematologic response and hematologic progression. Hematologic progression is defined as 50% increase from nadir. While duration of response was assessed up to 4 years, 4 year estimates were not reached. We are reporting the 24 month estimate (how many participants achieved 24 month duration of response)

27 participants with response to study treatment

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secondary · POSTED

To evaluate time to hematologic response. Partial response is defined as a dFLC decrease of ≥ 50%, but remaining \> 4.0 mg/dL. Very good partial response is defined as the difference between involved and uninvolved FLCs \[dFLC\] \< 4.0 mg/dL. Complete response is defined as laboratory values within the normal range free light chain (FLC) ratio (0.25 - 1.65) and negative serum and urine immunofixation.

Of the 35 analyzable participants, 27 achieved a response.

→

secondary · POSTED

To evaluate progression-free survival (24 month estimate) Hematologic progression is defined as 50% increase from nadir, or from baseline (if there was no response) in any ONE OR MORE of the following: 1. Serum M-protein: 50% increase in Serum M protein to a value greater than 0.5 g/dL. 2. Urine M protein: 50% increase in Urine M protein to a value greater than 200 mg/day (a visible peak must be present) 3. Free light chain increase of 50% to a value greater than 10 mg/dL

35 participants were analyzable

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Reported safety

Serious events are not the same as severe events. Compare the original safety groups and their at-risk populations.

Open the study safety table →

Quality of life and patient-reported measures

No linked quality-of-life measure is recorded for this setting and study.

Full draft applicability and source-link record
trial
release id
clinical-indications-draft-1
disease state id
ds-primary-systemic-amyloidosis
nct id
NCT03499808
trial label
S1702 Isatuximab in Treating Patients With Relapsed or Refractory Primary Amyloidosis
applicability
narrower
applicability note
Linked by condition-string match at the cancer-entity level. The study's eligibility - stage, biomarker, treatment line and prior therapy - has not been reconciled against this page's definition, so its population is narrower than this page in ways not yet recorded. The condition was transformed or resolved through the terminology hierarchy to reach this cancer type, so the link itself is a candidate a reviewer must confirm.
curation status
draft
reviewed by
Source null
reviewed at
Source null
created at
2026-09-10T00:00:00Z
provenance class
registry-condition-search
discovery note
Found by searching ClinicalTrials.gov for this cancer type, restricted to studies that have posted results to the registry. No FDA notice, FDA label or NCI summary held by this site cites this study. Because the search asked for posted results, studies without posted results were never looked for, so their absence from this page means nothing.
outcome Count
6
harms Count
1
qol Count
0
outcomes
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0000
    source section id
    NCT03499808-om-0000
    source outcome index
    0
    endpoint
    Assess Efficacy by Confirmed Overall Hematologic Response
    endpoint definition
    To assess the efficacy as measured by the confirmed overall hematologic response rate (partial response, very good partial response, complete response) of isatuximab in relapsed/ refractory systemic light chain (AL) amyloidosis. Measured as rate of partial response or better. Partial response is defined as a dFLC decrease of ≥ 50%, but remaining \> 4.0 mg/dL. Very good partial response is defined as the difference between involved and uninvolved FLCs \[dFLC\] \< 4.0 mg/dL. Complete response is defined as laboratory values within the normal range free light chain (FLC) ratio (0.25 - 1.65) and negative serum and urine immunofixation.
    time origin
    From date of enrollment until progression or death due to any cause, whichever occurs first, assessed up to 4 years
    analysis role
    primary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    35 participants who received treatment and are analyzable.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0001
    source section id
    NCT03499808-om-0001
    source outcome index
    1
    endpoint
    To Evaluate Toxicities in the Treatment of Relapsed/Refractory AL Amyloidosis With Isatuximab.
    endpoint definition
    Only adverse events that are possibly, probably or definitely related to study drug are reported.
    time origin
    From date of enrollment until progression or death due to any cause, whichever occurs first, assessed up to 4 years
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Participants who completed at least one day of treatment.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  3. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0002
    source section id
    NCT03499808-om-0002
    source outcome index
    2
    endpoint
    Overall Survival (24 Month Estimate)
    endpoint definition
    Overall survival is measured from date of registration to date of death due to any cause. Patients last known to be alive are censored at date of last contact. While OS was assessed up to 4 years, 4 year estimates were not reached. We are reporting the 24 month estimate (how many participants reached survival time of at least 24 months).
    time origin
    From date of enrollment up to 2 years
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    35 eligible participants who received at least one dose of study drug.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  4. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0003
    source section id
    NCT03499808-om-0003
    source outcome index
    3
    endpoint
    Duration of Response (24 Month Estimate)
    endpoint definition
    Duration of response is measure as time between hematologic response and hematologic progression. Hematologic progression is defined as 50% increase from nadir. While duration of response was assessed up to 4 years, 4 year estimates were not reached. We are reporting the 24 month estimate (how many participants achieved 24 month duration of response)
    time origin
    Up to 2 years
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    27 participants with response to study treatment
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  5. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0004
    source section id
    NCT03499808-om-0004
    source outcome index
    4
    endpoint
    Time to Hematologic Response
    endpoint definition
    To evaluate time to hematologic response. Partial response is defined as a dFLC decrease of ≥ 50%, but remaining \> 4.0 mg/dL. Very good partial response is defined as the difference between involved and uninvolved FLCs \[dFLC\] \< 4.0 mg/dL. Complete response is defined as laboratory values within the normal range free light chain (FLC) ratio (0.25 - 1.65) and negative serum and urine immunofixation.
    time origin
    From registration to time of confirmed hematologic progression
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Of the 35 analyzable participants, 27 achieved a response.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  6. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0005
    source section id
    NCT03499808-om-0005
    source outcome index
    5
    endpoint
    Progression-free Survival (24 Month Estimate)
    endpoint definition
    To evaluate progression-free survival (24 month estimate) Hematologic progression is defined as 50% increase from nadir, or from baseline (if there was no response) in any ONE OR MORE of the following: 1. Serum M-protein: 50% increase in Serum M protein to a value greater than 0.5 g/dL. 2. Urine M protein: 50% increase in Urine M protein to a value greater than 200 mg/day (a visible peak must be present) 3. Free light chain increase of 50% to a value greater than 10 mg/dL
    time origin
    From registration to time of confirmed hematologic progression
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    35 participants were analyzable
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
arms
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0000
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    35
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0000#groups/OG000
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0001
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    35
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0001#groups/OG000
  3. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0002
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    35
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0002#groups/OG000
  4. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0003
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    27
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0003#groups/OG000
  5. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0004
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    27
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0004#groups/OG000
  6. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    outcome key
    om-0005
    arm key
    OG000
    arm label
    Isatuximab
    regimen
    Patients receive isatuximab intravenously (IV) on days 1, 8, 15, and 22 of course 1 and on days 1 and 15 of subsequent courses. Treatment repeats every 28 days for 24 courses in the absence of disease progression or unacceptable toxicity.
    analyzed count
    35
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03499808-om-0005#groups/OG000
harms
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-primary-systemic-amyloidosis
    nct id
    NCT03499808
    harm key
    EG000
    source section id
    NCT03499808-ae
    event group key
    EG000
    event group label
    Isatuximab
    serious affected
    15
    serious at risk
    35
    other affected
    32
    other at risk
    35
    frequency threshold
    5
    collection period
    Up to 4 years after registration
    event definition
    Participants who received protocol treatment and are eligible are included
    undenominated note
    Source null
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
quality of life
    setting source links

      Preserved source evidence · Not medical advice