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A Study of Lenvatinib (MK-7902) in Pediatric Participants With Relapsed or Refractory Solid Malignancies (MK-7902-013/E7080)

An Open-Label, Multicenter Phase 2 Basket Study to Evaluate the Antitumor Activity and Safety of Lenvatinib in Children, Adolescents, and Young Adults With Relapsed or Refractory Solid Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04447755
Acronym
E7080-G000-231
Enrollment
127
Registered
2020-06-25
Start date
2020-07-30
Completion date
2025-02-13
Last updated
2025-10-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Relapsed or Refractory Solid Tumors

Brief summary

The main purpose of this study is to evaluate the antitumor activity and safety of lenvatinib (MK-7902/E7080) in children, adolescents, and young adults with relapsed or refractory solid malignancies after administration. Participants were enrolled into Ewing sarcoma (EWS), rhabdomyosarcoma (RMS), high-grade glioma (HGG), diffuse midline glioma, medulloblastoma, ependymoma, and Other Solid Tumors Excluding Osteosarcoma, diffuse midline glioma, medulloblastoma, and ependymoma cohorts.

Interventions

DRUGLenvatinib

Lenvatinib capsules administered orally at 14 mg/m\^2 QD

Sponsors

Eisai Inc.
CollaboratorINDUSTRY
Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Open Label

Eligibility

Sex/Gender
ALL
Age
2 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Has histologically or cytologically documented relapsed, or refractory pediatric solid malignancy excluding osteosarcoma * Has measurable disease as defined by Response Evaluation Criteria In Solid Tumors version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) for High Grade Glioma (HGG) * Has a performance status defined as follows: 1) Lansky Play Score ≥50 for participants up to and including 16 years of age 2) Karnofsky performance status (KPS) ≥50 for participants \>16 years of age 3) Neurologic deficits in participants with primary central nervous system (CNS) tumors must have been stable for at least 7 days prior to study enrollment * Demonstrate adequate organ function * No clinical evidence of nephrotic syndrome. * Has adequate blood pressure (BP) control with or without antihypertensive medications * Has adequate cardiac function * Has adequate neurologic function * Participant must have fully recovered to Common Terminology Criteria for Adverse Events, Version 5.0 (CTCAE v5.0) Grade ≤1 (except for alopecia, ototoxicity, and Grade ≤2 peripheral neuropathy) from the acute toxic effects of all prior anticancer therapy * Male participants must agree to use approved contraception during the treatment period and for at least 7 days after the last dose of study intervention and refrain from donating sperm during this period * Female participants are not pregnant and not breastfeeding, and are not a woman of childbearing potential (WOCBP) or are a WOCBP who agrees to follow contraceptive guidance during the treatment period and for at least 30 days after the last dose of study intervention

Exclusion criteria

* Has had major surgery within 3 weeks prior to Cycle 1 Day 1 (C1D1) * Has gastrointestinal (GI) bleeding or active hemoptysis (bright red blood of at least half teaspoon) within 21 days prior to enrollment * Has CNS tumors with a history of symptomatic tumor hemorrhage * Has evidence of new intracranial hemorrhage of more than punctate size on MRI assessment obtained within 28 days prior to study enrollment * Has radiographic evidence of encasement or invasion of a major blood vessel or of intratumoral cavitation * Has evidence of untreated CNS metastases (exception: participants with primary CNS tumors and leptomeningeal disease. * Has GI malabsorption, GI anastomosis, or any other condition that in the opinion of the investigator might affect the absorption of lenvatinib * Has preexisting ≥Grade 3 GI or non-GI fistula * Has any active infection requiring systemic therapy * Known to be Human immunodeficiency virus (HIV) positive * Known active viral hepatitis (B or C) as demonstrated by positive serology. Testing for hepatitis B or hepatitis C is required at screening only when mandated by local health authority * Is currently participating and receiving study therapy, or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the date of allocation * Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participant to participate, in the opinion of the treating investigator * Has known hypersensitivity to any component of the investigational product (lenvatinib or ingredients) * Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the stud * Has clinically significant cardiovascular disease within 6 months from first dose of study intervention, including New York Heart Association Class III or IV congestive heart failure, unstable angina, myocardial infarction, cerebral vascular accident, or cardiac arrhythmia associated with hemodynamic instability * Has non-healing wound, tumor ulceration, unhealed or incompletely healed fracture, or a compound (open) bone fracture at the time of enrollment

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator AssessmentUp to 16 weeksORR at Week 16 was defined as the percentage of participants with a confirmed complete response (CR: disappearance of all target lesions) or partial response (PR: at least a 30% decrease in the sum of diameters \[SOD\] of target lesions, taking as reference the baseline SOD) as assessed by the investigator per RECIST 1.1 at 16 Weeks. For participants with HGG, response was assessed according to RANO criteria whereby overall response is based on both radiographic response (CR: disappearance of all target lesions, PR: sum of products of diameters \[SPD\] decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.

Secondary

MeasureTime frameDescription
Progression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsPFS was defined as the time from the date of the first administration of study drug until the date of first documentation of progressive disease (PD) per RECIST 1.1 or RANO (for HGG) or death (whichever occurs first).
Best Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsBOR is defined as the participant's best confirmed response (CR or PR) over the treatment period as assessed by the investigator per RECIST 1.1 or RANO. As per RECIST 1.1, CR is defined as disappearance of all target lesions and PR is defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. For participants with HGG, response will be assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.
Duration of Response (DOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsDOR was defined as the time from the date of the first documented CR or PR to the date first documentation of progressive disease or death (whichever occurs first). As per RECIST 1.1, CR was defined as disappearance of all target lesions and PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. For participants with HGG, response will be assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.
Disease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsDCR was defined as a BOR of CR or PR, or stable disease (SD). To be assigned a BOR of SD, the time from the first administration of study drug until the date of documented SD should be ≥7 weeks. As per RECIST 1.1, CR was defined as disappearance of all target lesions, PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD, and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. For participants with HGG, response was assessed according to RANO criteria whereby overall response was based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value and SD: SPD \<50% decreased from baseline, but \<25% increased from nadir) and clinical performance status with steroid dose information.
Clinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsCBR was defined as a BOR of CR or PR, or durable SD (Duration of SD should be ≥23 weeks since the first dose of the study treatment. As per RECIST 1.1, CR was defined as disappearance of all target lesions, PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. For participants with HGG, response is assessed according to RANO criteria whereby overall response was based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value and SD: SPD \<50% decreased from baseline, but \<25% increased from nadir) and clinical performance status with steroid dose information.
Number of Participants Who Experienced an Adverse Event (AE)Up to approximately 50 monthsAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experienced at least one AE is reported.
ORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator AssessmentUp to approximately 21 monthsORR was defined as the percentage of participants with a confirmed complete response (CR: disappearance of all target lesions) or partial response (PR: at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD) as assessed by the investigator per RECIST 1.1. For participants with HGG, response was assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.
Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryCycle 1 Day 1 (cycle = 28 days)A hedonic Visual Analog Scale (VAS) was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the supplemental Statistical Analysis Plan (sSAP), all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the taste category is presented.
Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryCycle 1 Day 1 (cycle = 28 days)A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the appearance category is presented.
Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryCycle 1 Day 1 (cycle = 28 days)A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the smell category is presented.
Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryCycle 1 Day 1 (cycle = 28 days)A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the mouth feel category is presented.
Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryCycle 1 Day 1 (cycle = 28 days)A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the overall acceptability category is presented.
Area Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)Cycle 1 Day 1 (0.5-4 and 6-10 hours post-dose), Cycle 1 Day 15 (pre-dose, 0.5-4, and 6-10 hours post-dose), and Cycle 2 Day 1 (pre-dose and 2-12 hours post-dose). A cycle is 28 days.Blood samples were taken predose and at specified times postdose on Days 1-28 to determine the AUCss of Lenvatinib.
Number of Participants Who Discontinued Study Treatment Due to an AEUp to approximately 38 monthsAn AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinued study treatment due to an AE is reported.

Countries

Argentina, Australia, Belgium, Croatia, Czechia, France, Guatemala, Hungary, Israel, Italy, New Zealand, Peru, Russia, Serbia, South Africa, South Korea, Spain, Sweden, Turkey (Türkiye), United States

Participant flow

Recruitment details

Participants were recruited to tumor cohorts of Ewing Sarcoma, Rhabdomyosarcoma, High Grade Glioma, and Other Solid Tumors Excluding Osteosarcoma. Enrollment to the protocol pre-specified tumor cohort of Other Solid Tumors Excluding Osteosarcoma was further expanded into categories of Diffuse midline glioma, Medulloblastoma, and Ependymoma.

Participants by arm

ArmCount
Ewing Sarcoma
Participants with Ewing sarcoma received lenvatinib 14 mg/m\^2 once daily (QD) orally until progressive disease or unacceptable toxicity.
9
Rhabdomyosarcoma
Participants with rhabdomyosarcoma received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
17
High Grade Glioma
Participants with high grade glioma received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
8
Diffuse Midline Glioma
Participants with diffuse midline glioma received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
9
Medulloblastoma
Participants with medulloblastoma received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
9
Ependymoma
Participants with ependymoma received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
9
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and Ependymoma
Participants with other solid tumors received lenvatinib 14 mg/m\^2 QD orally until progressive disease or unacceptable toxicity.
66
Total127

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Overall StudyDeath916898955
Overall StudyLost to Follow-up0000001
Overall StudySponsor Decision00001010
Overall StudyWithdrawal by Parent/Guardian0100000

Baseline characteristics

CharacteristicEwing SarcomaRhabdomyosarcomaHigh Grade GliomaDiffuse Midline GliomaMedulloblastomaEpendymomaOther Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaTotal
Age, Continuous14.8 Years
STANDARD_DEVIATION 4
13.1 Years
STANDARD_DEVIATION 4.7
14.0 Years
STANDARD_DEVIATION 3.1
10.0 Years
STANDARD_DEVIATION 5.2
13.2 Years
STANDARD_DEVIATION 4.5
8.7 Years
STANDARD_DEVIATION 5.7
13.1 Years
STANDARD_DEVIATION 5.6
12.7 Years
STANDARD_DEVIATION 5.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants0 Participants0 Participants1 Participants0 Participants9 Participants13 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants11 Participants6 Participants4 Participants2 Participants6 Participants43 Participants77 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants4 Participants2 Participants5 Participants6 Participants3 Participants14 Participants37 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants2 Participants3 Participants
Race (NIH/OMB)
Asian
3 Participants2 Participants1 Participants3 Participants0 Participants0 Participants13 Participants22 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants4 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants4 Participants3 Participants4 Participants6 Participants2 Participants11 Participants32 Participants
Race (NIH/OMB)
White
3 Participants10 Participants4 Participants2 Participants2 Participants7 Participants35 Participants63 Participants
Sex: Female, Male
Female
2 Participants7 Participants4 Participants8 Participants3 Participants4 Participants32 Participants60 Participants
Sex: Female, Male
Male
7 Participants10 Participants4 Participants1 Participants6 Participants5 Participants34 Participants67 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
9 / 917 / 178 / 89 / 98 / 99 / 955 / 66
other
Total, other adverse events
9 / 917 / 176 / 89 / 99 / 97 / 966 / 66
serious
Total, serious adverse events
4 / 95 / 176 / 84 / 94 / 94 / 939 / 66

Outcome results

Primary

Objective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment

ORR at Week 16 was defined as the percentage of participants with a confirmed complete response (CR: disappearance of all target lesions) or partial response (PR: at least a 30% decrease in the sum of diameters \[SOD\] of target lesions, taking as reference the baseline SOD) as assessed by the investigator per RECIST 1.1 at 16 Weeks. For participants with HGG, response was assessed according to RANO criteria whereby overall response is based on both radiographic response (CR: disappearance of all target lesions, PR: sum of products of diameters \[SPD\] decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.

Time frame: Up to 16 weeks

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (NUMBER)
Ewing SarcomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment22.2 Percentage of Participants
RhabdomyosarcomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment11.8 Percentage of Participants
High Grade GliomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment0.0 Percentage of Participants
Diffuse Midline GliomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment0.0 Percentage of Participants
MedulloblastomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment0.0 Percentage of Participants
EpendymomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment0.0 Percentage of Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaObjective Response Rate (ORR) At Week 16 Per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) or Response Assessment in Neuro-Oncology (RANO) Criteria (for High Grade Glioma [HGG] Only), by Investigator Assessment7.7 Percentage of Participants
Secondary

Area Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)

Blood samples were taken predose and at specified times postdose on Days 1-28 to determine the AUCss of Lenvatinib.

Time frame: Cycle 1 Day 1 (0.5-4 and 6-10 hours post-dose), Cycle 1 Day 15 (pre-dose, 0.5-4, and 6-10 hours post-dose), and Cycle 2 Day 1 (pre-dose and 2-12 hours post-dose). A cycle is 28 days.

Population: All participants who received at least one dose of study treatment and had at least one measurable postdose plasma concentration with an adequately documented dosing history were analyzed. Lenvatinib exposures are reported by the four protocol pre-specified cohorts at the time of enrollment (EWS, RMS, HGG, and Other Solid Tumors excluding Osteosarcoma). For the purposes of the analysis, AUCss was reported for participants with Other Solid Tumors irrespective of tumor type.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Ewing SarcomaArea Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)5896 ng*hr/mlGeometric Coefficient of Variation 31.2
RhabdomyosarcomaArea Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)3915 ng*hr/mlGeometric Coefficient of Variation 32.9
High Grade GliomaArea Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)3660 ng*hr/mlGeometric Coefficient of Variation 43.5
Diffuse Midline GliomaArea Under the Concentration-Time Curve of Lenvatinib at Steady State (AUCss)4990 ng*hr/mlGeometric Coefficient of Variation 53.2
Secondary

Best Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment

BOR is defined as the participant's best confirmed response (CR or PR) over the treatment period as assessed by the investigator per RECIST 1.1 or RANO. As per RECIST 1.1, CR is defined as disappearance of all target lesions and PR is defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. For participants with HGG, response will be assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (NUMBER)
Ewing SarcomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment22.2 Percentage of Participants
RhabdomyosarcomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment11.8 Percentage of Participants
High Grade GliomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
Diffuse Midline GliomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
MedulloblastomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
EpendymomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaBest Overall Response (BOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment7.7 Percentage of Participants
Secondary

Clinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment

CBR was defined as a BOR of CR or PR, or durable SD (Duration of SD should be ≥23 weeks since the first dose of the study treatment. As per RECIST 1.1, CR was defined as disappearance of all target lesions, PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. For participants with HGG, response is assessed according to RANO criteria whereby overall response was based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value and SD: SPD \<50% decreased from baseline, but \<25% increased from nadir) and clinical performance status with steroid dose information.

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (NUMBER)
Ewing SarcomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment33.3 Percentage of Participants
RhabdomyosarcomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment29.4 Percentage of Participants
High Grade GliomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
Diffuse Midline GliomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment11.1 Percentage of Participants
MedulloblastomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment44.4 Percentage of Participants
EpendymomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment33.3 Percentage of Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaClinical Benefit Rate (CBR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment40.0 Percentage of Participants
Secondary

Disease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment

DCR was defined as a BOR of CR or PR, or stable disease (SD). To be assigned a BOR of SD, the time from the first administration of study drug until the date of documented SD should be ≥7 weeks. As per RECIST 1.1, CR was defined as disappearance of all target lesions, PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD, and SD was defined as neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD. For participants with HGG, response was assessed according to RANO criteria whereby overall response was based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value and SD: SPD \<50% decreased from baseline, but \<25% increased from nadir) and clinical performance status with steroid dose information.

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (NUMBER)
Ewing SarcomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment66.7 Percentage of Participants
RhabdomyosarcomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment52.9 Percentage of Participants
High Grade GliomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment33.3 Percentage of Participants
Diffuse Midline GliomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment22.2 Percentage of Participants
MedulloblastomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment55.6 Percentage of Participants
EpendymomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment55.6 Percentage of Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaDisease Control Rate (DCR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment64.6 Percentage of Participants
Secondary

Duration of Response (DOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment

DOR was defined as the time from the date of the first documented CR or PR to the date first documentation of progressive disease or death (whichever occurs first). As per RECIST 1.1, CR was defined as disappearance of all target lesions and PR was defined as at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD. For participants with HGG, response will be assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease, and demonstrated CR or PR.

ArmMeasureValue (MEDIAN)
Ewing SarcomaDuration of Response (DOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator AssessmentNA Months
RhabdomyosarcomaDuration of Response (DOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment4.6 Months
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaDuration of Response (DOR) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment4.6 Months
Secondary

Number of Participants Who Discontinued Study Treatment Due to an AE

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinued study treatment due to an AE is reported.

Time frame: Up to approximately 38 months

Population: All participants who received at least one dose of study treatment were analyzed.

ArmMeasureValue (NUMBER)
Ewing SarcomaNumber of Participants Who Discontinued Study Treatment Due to an AE1 Participants
RhabdomyosarcomaNumber of Participants Who Discontinued Study Treatment Due to an AE0 Participants
High Grade GliomaNumber of Participants Who Discontinued Study Treatment Due to an AE0 Participants
Diffuse Midline GliomaNumber of Participants Who Discontinued Study Treatment Due to an AE0 Participants
MedulloblastomaNumber of Participants Who Discontinued Study Treatment Due to an AE1 Participants
EpendymomaNumber of Participants Who Discontinued Study Treatment Due to an AE2 Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaNumber of Participants Who Discontinued Study Treatment Due to an AE6 Participants
Secondary

Number of Participants Who Experienced an Adverse Event (AE)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experienced at least one AE is reported.

Time frame: Up to approximately 50 months

Population: All participants who received at least one dose of study treatment were analyzed.

ArmMeasureValue (NUMBER)
Ewing SarcomaNumber of Participants Who Experienced an Adverse Event (AE)9 Participants
RhabdomyosarcomaNumber of Participants Who Experienced an Adverse Event (AE)17 Participants
High Grade GliomaNumber of Participants Who Experienced an Adverse Event (AE)8 Participants
Diffuse Midline GliomaNumber of Participants Who Experienced an Adverse Event (AE)9 Participants
MedulloblastomaNumber of Participants Who Experienced an Adverse Event (AE)9 Participants
EpendymomaNumber of Participants Who Experienced an Adverse Event (AE)8 Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaNumber of Participants Who Experienced an Adverse Event (AE)66 Participants
Secondary

ORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment

ORR was defined as the percentage of participants with a confirmed complete response (CR: disappearance of all target lesions) or partial response (PR: at least a 30% decrease in the SOD of target lesions, taking as reference the baseline SOD) as assessed by the investigator per RECIST 1.1. For participants with HGG, response was assessed according to RANO criteria whereby overall RANO response is based on both radiographic response (CR: disappearance of all target lesions, PR: SPD decreased by ≥ 50% from baseline value) and clinical performance status with steroid dose information.

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (NUMBER)
Ewing SarcomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment22.2 Percentage of Participants
RhabdomyosarcomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment11.8 Percentage of Participants
High Grade GliomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
Diffuse Midline GliomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
MedulloblastomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
EpendymomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment0.0 Percentage of Participants
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaORR Per RECIST 1.1 or RANO Criteria (for HGG Only), by Investigator Assessment7.7 Percentage of Participants
Secondary

Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance Category

A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the appearance category is presented.

Time frame: Cycle 1 Day 1 (cycle = 28 days)

Population: Per protocol, all participants who received suspension formulation were analyzed. Data were summarized in an overall safety analysis set irrespective of tumor type.

ArmMeasureGroupValue (NUMBER)
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategorySuper Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryReally Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryBad1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryMaybe Good or Maybe Bad5 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryGood2 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategoryReally Good0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Appearance CategorySuper Good2 Participants
Secondary

Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel Category

A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the mouth feel category is presented.

Time frame: Cycle 1 Day 1 (cycle = 28 days)

Population: Per protocol, all participants who received suspension formulation were analyzed. Data were summarized in an overall safety analysis set irrespective of tumor type.

ArmMeasureGroupValue (NUMBER)
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategorySuper Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryReally Bad1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryBad2 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryMaybe Good or Maybe Bad4 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryGood1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategoryReally Good2 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Mouth Feel CategorySuper Good0 Participants
Secondary

Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability Category

A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the overall acceptability category is presented.

Time frame: Cycle 1 Day 1 (cycle = 28 days)

Population: Per protocol, all participants who received suspension formulation were analyzed. Data were summarized in an overall safety analysis set irrespective of tumor type.

ArmMeasureGroupValue (NUMBER)
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategorySuper Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryReally Bad1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryBad1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryMaybe Good or Maybe Bad3 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryGood3 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategoryReally Good1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Overall Acceptability CategorySuper Good1 Participants
Secondary

Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell Category

A hedonic VAS was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the sSAP, all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the smell category is presented.

Time frame: Cycle 1 Day 1 (cycle = 28 days)

Population: Per protocol, all participants who received suspension formulation were analyzed. Data were summarized in an overall safety analysis set irrespective of tumor type.

ArmMeasureGroupValue (NUMBER)
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategorySuper Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryReally Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryBad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryMaybe Good or Maybe Bad8 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryGood1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategoryReally Good0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Smell CategorySuper Good1 Participants
Secondary

Palatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste Category

A hedonic Visual Analog Scale (VAS) was used to assess taste likability or palatability of a lenvatinib suspension formulated with water or apple juice. Participants scored each category on a scale from 1-7 ranging from super bad (score = 1) to super good (score = 7). As pre-specified by the supplemental Statistical Analysis Plan (sSAP), all participants who received suspension formulation were evaluated for palatability and acceptability of the suspension formulation, and data were summarized in an overall safety analysis set irrespective of tumor type. The palatability score based on the taste category is presented.

Time frame: Cycle 1 Day 1 (cycle = 28 days)

Population: Per protocol, all participants who received suspension formulation were analyzed. Data were summarized in an overall safety analysis set irrespective of tumor type.

ArmMeasureGroupValue (NUMBER)
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategorySuper Bad1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryReally Bad0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryBad2 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryMaybe Good or Maybe Bad5 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryGood1 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategoryReally Good0 Participants
Ewing SarcomaPalatability Questionnaire For Lenvatinib Suspension Formulation: Participant Responses by Taste CategorySuper Good1 Participants
Secondary

Progression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment

PFS was defined as the time from the date of the first administration of study drug until the date of first documentation of progressive disease (PD) per RECIST 1.1 or RANO (for HGG) or death (whichever occurs first).

Time frame: Up to approximately 21 months

Population: All participants who had measurable disease present at baseline and at least one efficacy assessment, unless they discontinued prior to the first efficacy assessment due to progressive disease.

ArmMeasureValue (MEDIAN)
Ewing SarcomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment3.0 Months
RhabdomyosarcomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment2.6 Months
High Grade GliomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment1.9 Months
Diffuse Midline GliomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment1.8 Months
MedulloblastomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment3.4 Months
EpendymomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment2.5 Months
Other Solid Tumors Excluding Osteosarcoma, Diffuse Midline Glioma, Medulloblastoma and EpendymomaProgression Free Survival (PFS) Per RECIST 1.1 or RANO (for HGG Only), by Investigator Assessment3.8 Months

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026