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NCT03213704 · STUDY IN CONTEXT

Larotrectinib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With NTRK Fusions (A Pediatric MATCH Treatment

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.

exploratory · NOT_POSTED

A descriptive analysis of pharmacokinetic parameters of LOXO-101 (larotrectinib) will be performed to define systemic exposure, drug clearance, and other pharmacokinetic parameters. The pharmacokinetic parameters will be summarized with simple summary statistics, including means, medians, ranges, and standard deviations (if numbers and distribution permit). All these analyses will be descriptive and exploratory and hypotheses generating in nature.

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exploratory · NOT_POSTED

A descriptive analysis of the exploratory aims will be performed and will be summarized with simple summary statistics. All of these analyses will be descriptive in nature.

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primary · POSTED

A responder is defined as a patient who achieves a best response of partial response or complete response on the study. Response rates will be calculated as the percent of evaluable patients who are responders. The revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1) was used to determine response and progression in this study, with specific criteria outlined for the different subtypes of tumors (e.g., 2-dimensional measurements for central nervous system (CNS) tumors).

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secondary · POSTED

The Kaplan-Meier method will be used to estimate the 6 month PFS. PFS is defined as time from initiation of protocol treatment to disease progression, recurrence, death from any cause, or date of last contact.

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secondary · POSTED

Percentage of patients experiencing grade 3 or higher adverse events will be evaluated according to National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0.

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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-osteosarcoma
nct id
NCT03213704
trial label
Larotrectinib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With NTRK Fusions (A Pediatric MATCH Treatment
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
5
harms Count
1
qol Count
0
outcomes
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0003
    source section id
    NCT03213704-om-0003
    source outcome index
    3
    endpoint
    Pharmacokinetics of Larotrectinib
    endpoint definition
    A descriptive analysis of pharmacokinetic parameters of LOXO-101 (larotrectinib) will be performed to define systemic exposure, drug clearance, and other pharmacokinetic parameters. The pharmacokinetic parameters will be summarized with simple summary statistics, including means, medians, ranges, and standard deviations (if numbers and distribution permit). All these analyses will be descriptive and exploratory and hypotheses generating in nature.
    time origin
    Pre-dose, 1, 2, 4, and 6-8 hours after morning dose of day 1 cycle 1 and pre-dose of day 1 cycle 2
    analysis role
    exploratory
    reporting status
    NOT_POSTED
    data cutoff
    Source null
    population note
    Source null
    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-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0004
    source section id
    NCT03213704-om-0004
    source outcome index
    4
    endpoint
    Ability to Detect NTRK Fusions in Circulating Cell-free Tumor Deoxyribonucleic Acid in Plasma
    endpoint definition
    A descriptive analysis of the exploratory aims will be performed and will be summarized with simple summary statistics. All of these analyses will be descriptive in nature.
    time origin
    Up to 5 years
    analysis role
    exploratory
    reporting status
    NOT_POSTED
    data cutoff
    Source null
    population note
    Source null
    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-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0000
    source section id
    NCT03213704-om-0000
    source outcome index
    0
    endpoint
    Objective Response Rate
    endpoint definition
    A responder is defined as a patient who achieves a best response of partial response or complete response on the study. Response rates will be calculated as the percent of evaluable patients who are responders. The revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline (version 1.1) was used to determine response and progression in this study, with specific criteria outlined for the different subtypes of tumors (e.g., 2-dimensional measurements for central nervous system (CNS) tumors).
    time origin
    Up to 2 years from study entry
    analysis role
    primary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Source null
    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-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0001
    source section id
    NCT03213704-om-0001
    source outcome index
    1
    endpoint
    Progression Free Survival (PFS)
    endpoint definition
    The Kaplan-Meier method will be used to estimate the 6 month PFS. PFS is defined as time from initiation of protocol treatment to disease progression, recurrence, death from any cause, or date of last contact.
    time origin
    Up to 6 months from study entry
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Source null
    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-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0002
    source section id
    NCT03213704-om-0002
    source outcome index
    2
    endpoint
    Percentage of Patients Experiencing Grade 3 or Higher Adverse Events
    endpoint definition
    Percentage of patients experiencing grade 3 or higher adverse events will be evaluated according to National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0.
    time origin
    Up to 2 years from study entry
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Source null
    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-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0000
    arm key
    OG000
    arm label
    Treatment (Larotrectinib Sulfate)
    regimen
    Patients receive larotrectinib sulfate PO or via NG- or G-tube BID on days 1-28. Cycles repeat every 28 days for up to 2 years in the absence of disease progression or unacceptable toxicity. Patients undergo a CT scan, MRI, an x-ray, bone scan, and/or MIBG scintigraphy during screening and on study. Patients also undergo bone marrow aspiration and/or biopsy during screening and may undergo blood sample collection on study.
    analyzed count
    9
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03213704-om-0000#groups/OG000
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0001
    arm key
    OG000
    arm label
    Treatment (Larotrectinib Sulfate)
    regimen
    Patients receive larotrectinib sulfate PO or via NG- or G-tube BID on days 1-28. Cycles repeat every 28 days for up to 2 years in the absence of disease progression or unacceptable toxicity. Patients undergo a CT scan, MRI, an x-ray, bone scan, and/or MIBG scintigraphy during screening and on study. Patients also undergo bone marrow aspiration and/or biopsy during screening and may undergo blood sample collection on study.
    analyzed count
    9
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03213704-om-0001#groups/OG000
  3. release id
    clinical-indications-draft-1
    disease state id
    ds-osteosarcoma
    nct id
    NCT03213704
    outcome key
    om-0002
    arm key
    OG000
    arm label
    Treatment (Larotrectinib Sulfate)
    regimen
    Patients receive larotrectinib sulfate PO or via NG- or G-tube BID on days 1-28. Cycles repeat every 28 days for up to 2 years in the absence of disease progression or unacceptable toxicity. Patients undergo a CT scan, MRI, an x-ray, bone scan, and/or MIBG scintigraphy during screening and on study. Patients also undergo bone marrow aspiration and/or biopsy during screening and may undergo blood sample collection on study.
    analyzed count
    9
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT03213704-om-0002#groups/OG000
harms
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-osteosarcoma
    nct id
    NCT03213704
    harm key
    EG000
    source section id
    NCT03213704-ae
    event group key
    EG000
    event group label
    Treatment (Larotrectinib Sulfate)
    serious affected
    2
    serious at risk
    9
    other affected
    7
    other at risk
    9
    frequency threshold
    0
    collection period
    Adverse Events monitored/assessed from enrollment to 30 days after the end of treatment, up to 2 years. All-Cause Mortality monitored/assessed up to 5 years
    event definition
    Adverse event reporting is collected routinely using case report forms. The SAE table reflects NCI Common Terminology Criteria for Adverse Events (CTCAEs) submitted by the institution via expedited reporting (NCI AdEERs / CAeRs). All remaining CTCAEs collected by means other than expedited reporting are non-serious and are reported in the "AE Other" table. Ineligible patients are excluded from reporting of adverse events. All-Cause Mortality includes all deaths collected on the study.
    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