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PATIENT CASES

VITRAKVI®: EXPLORE DISTINCT ADULT AND PEDIATRIC PATIENT CASES ACROSS SOLID TUMORS1-5

Each individual case reports a response from 1 patient. Different patients have different responses to therapy. To see efficacy by solid tumor type from our Initial Data Set, click here.

 

Explore the treatment journey of actual VITRAKVI patients. Each case provides an overview inclusive of the patient’s clinical presentation, previous treatments, molecular testing profile, VITRAKVI treatment regimen, and disease resolution.

 

Click below to choose a patient case by disease profile.

Icon of human lungs
NSCLCa PATIENTS WITH METASTATIC DISEASE
Baseline scan of 76-year-old female patient with brain metastases

BASELINE

Post treatment scan of 76-year-old female patient with brain metastases

MONTH 4 OF TREATMENT

76-YEAR-OLD FEMALE WITH BRAIN METASTASES1

Pre- and post-treatment imaging, by Rosen EY et al, is licensed under Creative Commons License CC BY 4.0.

Initial diagnosis scan of 30-year-old female patient with bone metastases

INITIAL DIAGNOSIS

Post treatment scan of 30-year-old female patient with bone metastases

6 WEEKS AFTER TREATMENT

30-YEAR-OLD FEMALE WITH BONE METASTASES2

Images courtesy of Dr Maximilian Hochmair.

Icon of human thyroid gland
THYROID CANCER PATIENTS WITH METASTATIC DISEASE
Baseline body scan for a 56-year-old female patient with thyroid cancer who has multiple metastases.

BASELINE

Post treatment body scan for a 56-year-old female patient with thyroid cancer who has multiple metastases.

AFTER 2 MONTHS OF TREATMENT

56-YEAR-OLD FEMALE WITH MULTIPLE METASTASES3

Images courtesy of Dr Fabian Pitoia.

Baseline scan for a 33-year-old male patient with thyroid cancer

BASELINE

Post treatment scan for a 33-year-old male patient with thyroid cancer

AFTER 31 MONTHS

33-YEAR-OLD MALE4

 

Images courtesy of Dr Steven Waguespack.

Icon of children, a boy and girl
PEDIATRIC CANCER PATIENT WITH METASTATIC DISEASE
Baseline tumor scan for a 5-year-old patient with infantile fibrosarcoma.

BASELINE BEFORE VITRAKVI

Post treatment tumor scan for a 5-year-old patient with infantile fibrosarcoma

AFTER 6 MONTHS ON VITRAKVI

5-MONTH-OLD WITH INFANTILE FIBROSARCOMA5

Pre- and post-treatment imaging, by Rosen EY et al, is licensed under Creative Commons License CC BY 4.0.

aNSCLC, non-small cell lung cancer; NTRK, neurotrophic receptor tyrosine kinase.

View Guidelines

References

  • Rosen EY, Schram AM, Young RJ, et al. Larotrectinib demonstrates CNS efficacy in TRK fusion-positive solid tumors. JCO Precis Oncol. 2019;3:1-5. Return to content
  • Blay J-Y, Brose MS, García-Foncillas J, Hochmair MJ, Vainer G. Precision medicine in real-world clinical practice: perspectives from a multidisciplinary team. Virtual presentation at: European Society for Medical Oncology Virtual Congress 2020 Industry Satellite Symposium. On demand from September 14, 2020. Return to content
  • Pitoia F. Complete response to larotrectinib treatment in a patient with papillary thyroid cancer harboring an ETV6-NTRK3 gene fusion. Clin Case Rep. 2021;9(4):1905-1912. Return to content
  • Waguespack SG, Drilon A, Farago AF, et al. Treatment of advanced TRK fusion thyroid cancer with larotrectinib. Presented at: 42nd Annual Meeting of the European Thyroid Association; September 7-10, 2019; Budapest, Hungary. Return to content
  • DuBois SG, Laetsch TW, Federman N, et al. The use of neoadjuvant larotrectinib in the management of children with locally advanced TRK fusion sarcomas. Cancer. 2018;124(21):4241-4247. Return to content
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Indication

VITRAKVI is indicated for the treatment of adult and pediatric patients with solid tumors that:

  • have a neurotrophic receptor tyrosine kinase (NTRK) gene fusion without a known acquired resistance mutation
  • are metastatic or where surgical resection is likely to result in severe morbidity, and
  • have no satisfactory alternative treatments or that have progressed following treatment.

Select patients for therapy based on an FDA-approved test.

Important Safety Information

Warnings and Precautions

  • Central Nervous System Effects: Central nervous system (CNS) adverse reactions occurred in patients receiving VITRAKVI, including dizziness, cognitive impairment, mood disorders, and sleep disturbances.

    In patients who received VITRAKVI, all grades CNS effects including cognitive impairment, mood disorders, dizziness and sleep disorders were observed in 40.3% with Grades 3-4 in 3.8% of patients.

    Cognitive impairment occurred in 11% of patients. The median time to onset of cognitive impairment was 6 months (range: 2 days to 56 months). Cognitive impairment occurring in ≥ 1% of patients included memory impairment (4.1%), disturbance in attention (3.6%), confusional state (2.3%), cognitive disorder (1.6%), delirium (1.4%), and hallucination (1.1%). Grade 3 cognitive adverse reactions occurred in 1.8% of patients and Grade 4 cognitive adverse reactions in 0.2% of patients. Among the 49 patients with cognitive impairment, 6% required a dose modification and 18% required dose interruption.

    Mood disorders occurred in 14% of patients. The median time to onset of mood disorders was 3.3 months (range: 1 day to 65 months). Mood disorders occurring in ≥1% of patients included anxiety (5%), agitation (3.2%), depression (3.2%), irritability (2.3%), and restlessness (1.1%). Grade 3 mood disorders occurred in 0.9% of patients. Among the 63 patients who experienced mood disorders, no patient required a dose modification, and 1.6% required dose interruption.

    Dizziness occurred in 22% of patients, and Grade 3 dizziness occurred in 0.9% of patients. Among the 96 patients who experienced dizziness, 6% of patients required a dose modification and 5% required dose interruption.

    Sleep disturbances occurred in 12% of patients. Sleep disturbances included insomnia (9%), somnolence (3.4%), and sleep disorder (0.5%). Grade 3 sleep disturbances occurred in 0.2% of patients. Among the 54 patients who experienced sleep disturbances, no patient required a dose modification and 3.7% required dose interruption.

    Advise patients and caretakers of these risks with VITRAKVI. Advise patients not to drive or operate hazardous machinery if they are experiencing neurologic adverse reactions. Withhold or permanently discontinue VITRAKVI based on the severity. If withheld, modify the VITRAKVI dosage when resumed.

  • Skeletal Fractures: Skeletal fractures can occur in patients taking VITRAKVI.

    Among 444 patients who received VITRAKVI across clinical trials, fractures occurred in 7% of patients; 6% of 290 adult patients and 10% of 154 pediatric patients. Median time to first fracture was 13 months (range 27 days to 73 months) in patients followed per fracture. The most common fractures were of the rib (1.4%), fibula, foot or wrist (0.7% each). Most fractures were associated with minimal or moderate trauma. Some fractures were associated with radiologic abnormalities suggestive of local tumor involvement. VITRAKVI treatment was interrupted due to fracture in 1.4% patients.

    Promptly evaluate patients with signs or symptoms of potential fracture (e.g., pain, changes in mobility, deformity). There are no data on the effects of VITRAKVI on healing of known fractures or risk of future fractures.

  • Hepatotoxicity: Hepatotoxicity including drug induced liver injury (DILI) has occurred in patients taking VITRAKVI.

    In patients who received VITRAKVI (n=444), increased AST of any grade occurred in 62% of patients and increased ALT of any grade occurred in 61%. Grade 3-4 increased AST or ALT occurred in 7% and 8% of patients, respectively. The median time to onset of increased AST was 1.9 months (range: 4 days to 3.8 years). The median time to onset of increased ALT was 1.9 months (range: 1 day to 4.9 years). Increased AST and ALT leading to dose modifications occurred in 1.6% and 3.2% of patients, respectively. Increased AST or ALT led to permanent discontinuation in 4 (0.9%) patients.

    There have been reports from clinical studies and postmarketing cases of Grade ≥ 2 increases in ALT and/or AST with increases in bilirubin ≥ 2 x ULN.

    Obtain liver function tests (ALT, AST, ALP and bilirubin) before initiation of VITRAKVI and monitor every 2 weeks during the first 2 months of treatment, then monthly thereafter, or more frequently following the occurrence of Grade 2 or greater AST or ALT elevation. Temporarily withhold, reduce the dose, or permanently discontinue VITRAKVI based on severity.

  • Embryo-Fetal Toxicity: VITRAKVI can cause fetal harm when administered to a pregnant woman. Larotrectinib resulted in malformations in rats and rabbits at maternal exposures that were approximately 11- and 0.7-times, respectively, those observed at the clinical dose of 100 mg twice daily. Advise women of the potential risk to a fetus. Advise females of reproductive potential to use an effective method of contraception during treatment and for 1 week after the last dose of VITRAKVI.

Adverse Reactions

  • The most common adverse reactions (≥20%), including laboratory abnormalities, were: increased AST (62%), increased ALT (61%), anemia (45%), hypoalbuminemia (44%), musculoskeletal pain (41%), increased alkaline phosphatase (40%), leukopenia (37%), lymphopenia (35%), neutropenia (34%), hypocalcemia (32%), fatigue (31%), vomiting (30%), cough (29%), constipation (27%), pyrexia (26%), diarrhea (26%), nausea (25%), abdominal pain (24%), dizziness (22%), and rash (21%).

Drug Interactions

  • Avoid coadministration of VITRAKVI with strong CYP3A4 inhibitors (including grapefruit or grapefruit juice), strong CYP3A4 inducers (including St. John’s wort), or sensitive CYP3A4 substrates. If coadministration of strong CYP3A4 inhibitors or inducers cannot be avoided, modify the VITRAKVI dose as recommended. If coadministration of sensitive CYP3A4 substrates cannot be avoided, monitor patients for increased adverse reactions of these drugs. For coadministration with moderate CYP3A4 inhibitors, monitor for adverse reactions more frequently and reduce the dosage based on severity. For coadministration with moderate CYP3A4 inducers, modify dose as recommended.

Use in Specific Populations

  • Lactation: Advise women not to breastfeed during treatment with VITRAKVI and for 1 week after the last dose.

For important risk and use information about VITRAKVI, please see the full Prescribing Information.

You are encouraged to report side effects or quality complaints of products to the FDA by visiting www.fda.gov/medwatch or calling 1-800-FDA-1088.

For Bayer products, you can report these directly to Bayer by clicking here.

© 2025 Bayer. All rights reserved. Bayer, the Bayer Cross, and VITRAKVI are registered trademarks of Bayer, and Access Services by Bayer is a trademark of Bayer. All other trademarks are the property of their respective owners.

 

This site is intended for US audiences only.

Site last updated on 07/2025

© 2025 Bayer. All rights reserved. Bayer, the Bayer Cross, and VITRAKVI are registered trademarks of Bayer, and Access Services by Bayer is a trademark of Bayer. All other trademarks are the property of their respective owners.

 

This site is intended for US audiences only.

 

Site last updated on 07/2025