A Study to Test the Safety of the Investigational Drug Selitrectinib in Children and Adults That May Treat Cancer
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ClinicalTrials.gov Identifier: NCT03215511 |
Recruitment Status :
Recruiting
First Posted : July 12, 2017
Last Update Posted : February 9, 2021
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Condition or disease | Intervention/treatment | Phase |
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Solid Tumors Harboring NTRK Fusion | Drug: Selitrectinib (BAY2731954) | Phase 1 Phase 2 |
Expanded Access : An investigational treatment associated with this study is available outside the clinical trial. More info ...
The trial will be conducted in 2 parts: dose escalation and expansion (Phase 1) and Phase 2.
The primary objective of Phase 1 is to establish the recommended dose of selitrectinib to treat neurotrophic tyrosine kinase (NTRK) fusion cancers in patients a) aged 12 years and older and b) younger than 12 years. Secondary objectives of Phase 1 are to characterize the pharmakokinetic properties of the test drug, its safety and tolerability, and to assess the objective response rate (ORR) of NTRK-tumors.
The primary objective of Phase 2 is to assess the overall response rate in NTRK fusion cancer patients as determined by an independent radiology committee (IRR). Secondary objectives of Phase 2 comprise the safety and efficacy of selitrectinib at the recommended dose.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 170 participants |
Allocation: | Non-Randomized |
Intervention Model: | Sequential Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 1/2 Study of the TRK Inhibitor Selitrectinib in Adult and Pediatric Subjects With Previously Treated NTRK Fusion Cancers |
Actual Study Start Date : | July 3, 2017 |
Estimated Primary Completion Date : | October 28, 2021 |
Estimated Study Completion Date : | February 24, 2022 |
Arm | Intervention/treatment |
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Experimental: Phase 1: Cancer patients <12 years
Dose escalation cohorts with pediatric patients aged <12 years. Dose escalation starts with 43 mg of selitrectinib per m2 body surface twice daily.
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Drug: Selitrectinib (BAY2731954)
Selitrectinib is administered as capsules or liquid formulation.
Other Name: Loxo-195 |
Experimental: Phase 1: Cancer patients ≥12 years
Dose escalation cohorts with patients aged 12 years or older. Dose escalation starts with 100 mg of selitrectinib twice daily.
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Drug: Selitrectinib (BAY2731954)
Selitrectinib is administered as capsules or liquid formulation.
Other Name: Loxo-195 |
Experimental: Phase 2: Cancer patients_Cohort 1
Expansion cohort consisting of patients with NTRK fusion cancers showing disease progression despite treatment with a TRK inhibitor. Patients receive selitrectinib at recommended dose twice daily.
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Drug: Selitrectinib (BAY2731954)
Selitrectinib is administered as capsules or liquid formulation.
Other Name: Loxo-195 |
Experimental: Phase 2: Cancer patients_Cohort 2
Expansion cohort consisting of patients with NTRK fusion cancers showing intolerance or unresponsiveness to previous treatment with a TRK inhibitor. Patients receive selitrectinib at recommended dose twice daily.
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Drug: Selitrectinib (BAY2731954)
Selitrectinib is administered as capsules or liquid formulation.
Other Name: Loxo-195 |
- Phase 1: Maximum tolerated dose (MTD) [ Time Frame: Up to 42 days ]
- Phase 1: Recommended dose [ Time Frame: Up to 12 months ]
- Phase 2: Overall response rate (ORR) for patients <12 years from Cohort 1 by IRR [ Time Frame: Up to 40 months ]ORR is determined by an Independent Radiology Committee (IRR) using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
- Phase 2: Overall response rate (ORR) for patient ≥12 years from Cohort 1 by IRR [ Time Frame: Up to 40 months ]ORR is determined by an Independent Radiology Committee (IRR) using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
- Phase 1: Incidence of adverse events [ Time Frame: Up to 56 months ]
- Phase 1: Severity of adverse events [ Time Frame: Up to 56 months ]Severity is assessed using CTCAE version 4.03
- Phase 1: Duration of adverse events [ Time Frame: Up to 56 months ]
- Phase 1: Number of subjects with safety-relevant changes in clinical parameters or vital signs after drug administration [ Time Frame: Up to 56 months ]
- Phase 1: Severity of safety-relevant changes in clinical parameters or vital signs after drug administration [ Time Frame: Up to 56 months ]
- Phase 1: Overall response rate (ORR) in patients with NTRK fusion cancer previously treated with TRK inhibitor determined by investigator [ Time Frame: Up to 56 months ]ORR is determined by the investigator using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
- Phase 1: Overall response rate (ORR) in patients with primary central nervous system (CNS) malignancies determined by investigator [ Time Frame: Up to 56 months ]ORR is determined by the treating investigator using the Response Assessment in Neuro-Oncology (RANO) criteria.
- Phase 1: Overall survival (OS) [ Time Frame: Up to 56 months ]Number of months from the initiation of selitrectinib to the date of death due to any cause.
- Phase 1: Maximum concentration of BAY2731954 in plasma (Cmax) [ Time Frame: Predose, 0.25, 0.5, 1, 2, 4, 6, 8 hours post-dose on Day 1, predose, 0.5, 1, 2, 4 post-dose on Day 8 of Cycle 1 (cycle length 28 days) ]
- Phase 1: Area under the concentration versus time curve of BAY2731954 in plasma (AUC(0-last)) [ Time Frame: Predose, 0.25, 0.5, 1, 2, 4, 5, 8 and 10 hours post-dose on Days 1, 8, 15 and 22 of Cycle 1 (cycle length 28 days) ]
- Phase 2: Incidence of adverse events in patients ≥12 years [ Time Frame: Up to 44 months ]
- Phase 2: Severity of adverse events in patients ≥12 years [ Time Frame: Up to 44 months ]Severity is assessed using CTCAE version 4.03
- Phase 2: Duration of adverse events in patients ≥12 years [ Time Frame: Up to 44 months ]
- Phase 2: Incidence of adverse events in patients <12 years [ Time Frame: Up to 44 months ]
- Phase 2: Severity of adverse events in patients <12 years [ Time Frame: Up to 44 months ]Severity is assessed using CTCAE version 4.03
- Phase 2: Duration of adverse events in patients <12 years [ Time Frame: Up to 44 months ]
- Phase 2: Number of subjects with safety-relevant changes in clinical parameters or vital signs after drug administration [ Time Frame: Up to 44 months ]
- Phase 2: Severity of safety-relevant changes in clinical parameters or vital signs after drug administration [ Time Frame: Up to 44 months ]
- Phase 2: Overall response rate (ORR) in Cohort 2 determined by IRR [ Time Frame: Up to 44 months ]ORR is determined by an Independent Radiology Committee (IRR) using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
- Phase 2: Overall response rate (ORR) determined by investigator [ Time Frame: Up to 44 months ]ORR is determined by the treating investigator using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 or the Response Assessment in Neuro-Oncology (RANO) criteria, as appropriate.
- Phase 2: Duration of response (DOR) determined by IRR [ Time Frame: Up to 44 months ]Determined by an Independent Radiology Committee (IRR)
- Phase 2: Duration of response (DOR) determined by investigator [ Time Frame: Up to 44 months ]
- Phase 2: Progression free survival (PFS) determined by IRR [ Time Frame: Up to 44 months ]Determined by an Independent Radiology Committee (IRR)
- Phase 2: Progression free survival (PFS) determined by investigator [ Time Frame: Up to 44 months ]
- Phase 2: Overall survival (OS) [ Time Frame: Up to 44 months ]
- Phase 2: Clinical benefit rate (CBR) determined by IRR [ Time Frame: Up to 44 months ]Determined by an Independent Radiology Committee (IRR)
- Phase 2: Clinical benefit rate (CBR) determined by investigator [ Time Frame: Up to 44 months ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 1 Month and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Advanced solid tumor for which, in the opinion of the investigator, no other standard therapy offers greater benefit.
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A solid tumor diagnosis in the setting of:
- a) a documented NTRK fusion and a clinical history of relapse following a response to a prior TRK inhibitor
- b) a documented NTRK fusion unresponsive to a prior TRK inhibitor
- c) a documented NTRK fusion and a clinical history of intolerance to a prior TRK inhibitor
- NTRK gene fusions will be identified in a CLIA-certified (or equivalently-accredited diagnostic) laboratory. If such a report cannot be provided, other available certifications/accreditations are required and need to be documented. Patients with infantile fibrosarcoma (IFS) or congenital mesoblastic nephroma (CMN) may be enrolled based on an ETV6+ FISH test without identifying NTRK3.
- Performance Status: Eastern Cooperative Oncology Group (ECOG) score ≤ 2 in adults or Karnofsky Performance Score (KPS) Score≥50% (age ≥ 16 years) or Lansky Performance Score (LPS) ≥ 40% (age < 16 years).
- Life expectancy of at least 3 months.
- Adequate hematologic, hepatic and renal function.
- Patients with stable central nervous system (CNS) primary tumor, brain metastases, or treated spinal cord compression are eligible if neurological symptoms have been stable for 7 days prior to the first dose of selitrectinib.
- Ability to receive study drug orally or by enteral administration
Exclusion Criteria:
- Prior exposure to second generation TRK inhibitor (e.g. selitrectinib, repotrectinib (TPX-0005)), taletrectinib (DS-6501b/AB-106)). Exception is in case patient presented intolerance to the second generation TRK inhibitor agent and the duration of exposure was less than 28 days. No previous treatment with selitrectinib is allowed.
- Concurrent treatment with a strong CYP3A4 inhibitor or inducer, consumption of grapefruit juice or Seville oranges, or drugs associated with QT prolongation.
- Clinically significant active cardiovascular disease or history of myocardial infarction within 3 months prior to planned start of selitrectinib, or prolongation of QT interval corrected for heart rate (QTc interval) >480 milliseconds within past 6 months
- Major surgery within 7 days of enrollment
- Uncontrolled systemic bacterial, fungal or viral infection.
- Pregnancy or lactation.
- Known hypersensitivity to selitrectinib or Ora-Sweet® SF and OraPlus® for patients receiving liquid formulation.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03215511
Contact: Bayer Clinical Trials Contact | (+)1-888-84 22937 | clinical-trials-contact@bayer.com |

Responsible Party: | Bayer |
ClinicalTrials.gov Identifier: | NCT03215511 |
Other Study ID Numbers: |
20810 LOXO-EXT-17005 ( Other Identifier: Loxo Oncology, Inc. ) 2017-004246-20 ( EudraCT Number ) |
First Posted: | July 12, 2017 Key Record Dates |
Last Update Posted: | February 9, 2021 |
Last Verified: | February 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Plan Description: | Availability of this study's data will be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.clinicalstudydatarequest.com to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the Study sponsors section of the portal. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Solid Tumor Metastatic cancer Advanced cancer Neurotrophic tyrosine receptor kinase (NTRK) NTRK1 |
NTRK2 NTRK3 Fusion Positive Children |
9-Fluoro-15-methyl-2,11,16,20,21,24-hexaazapentacyclo(16.5.2.02,6.07,12.021,25)pentacosa-1(24),7,9,11,18(25),19,22-heptaen-17-one Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action |