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Phase 1b Trial of Lenvatinib Plus Pembrolizumab in Participants With Selected Solid Tumors

An Open-Label Phase 1b Trial of Lenvatinib Plus Pembrolizumab in Subjects With Selected Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03006887
Enrollment
6
Registered
2016-12-30
Start date
2017-01-12
Completion date
2020-04-15
Last updated
2021-05-20

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

Conditions

Solid Tumors

Keywords

solid tumors, non-small cell lung cancer, predominantly clear cell renal cell carcinoma, endometrial carcinoma, urothelial carcinoma, squamous cell carcinoma of the head and neck, non-uveal melanoma, E7080, lenvatinib, pembrolizumab, Japan

Brief summary

This is an open-label Phase 1b study designed to confirm the tolerability and safety of lenvatinib in combination with pembrolizumab in participants with selected solid tumors (non-small cell lung cancer, predominantly clear cell renal cell carcinoma, endometrial carcinoma, urothelial carcinoma, squamous cell carcinoma of the head and neck, or melanoma \[excluding uveal melanoma\]).

Interventions

DRUGlenvatinib

lenvatinib capsules

DRUGpembrolizumab

pembrolizumab intravenous infusion

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Eisai Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically and/or cytologically confirmed selected solid tumor types that have progressed after treatment with standard therapies or for which there are no other appropriate therapies available. The selected tumor types are: non-small cell lung cancer, predominantly clear cell renal cell carcinoma, endometrial carcinoma, urothelial carcinoma, squamous cell carcinoma of the head and neck, or melanoma (excluding uveal melanoma) * At least 1 measurable target lesion according to modified Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 * Participants must have an Eastern Cooperative Oncology Group (ECOG)-Performance Status (PS) of 0 to 1. * Adequate liver function as evidenced by bilirubin ≤1.5×ULN and alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) ≤3×ULN (in the case of liver metastases ≤5×ULN). In case ALP is \>3×ULN (in the absence of liver metastases) or \>5×ULN (in the presence of liver metastases) AND the participant also is known to have bone metastases, the liver-specific ALP must be separated from the total and used to assess the liver function instead of the total ALP. * Males or females age ≥20 years at the time of informed consent * Life expectancy of 12 weeks or more * Voluntary agreement to provide written informed consent and the willingness and ability to comply with all aspects of the protocol

Exclusion criteria

* Prior anticancer treatment within 28 days (or 5 times the half-life time, whichever is shorter) or any investigational agent within 28 days prior to the first dose of study drugs. All toxicities related to prior treatments must be resolved to Grade ≤1 (except alopecia). * Prior treatment with lenvatinib or any anti-PD-1, anti-PD-L1, or anti-PD-L2 agent, excluding cancer types such as melanoma and non-small cell lung cancer where prior treatment with one anti-PD-1, anti-PD-L1, or anti-PD-L2 agent is allowed * Participants must have recovered adequately from any complications from major surgery prior to starting therapy. * New York Heart Association congestive heart failure of grade II or above, unstable angina, myocardial infarction within the past 6 months, or serious cardiac arrhythmia associated with significant cardiovascular impairment within the past 6 months * Prolongation of QTc (Fridericia formula) interval to \>480 milliseconds (ms) * Active infection (any infection requiring systemic treatment) * Participant is known to be positive for Human Immunodeficiency Virus (HIV), Hepatitis B, or Hepatitis C * Known intolerance to either of the study drugs (or any of the excipients) * History of organ allograft * Any medical or other condition which, in the opinion of the investigator, would preclude participation in a clinical trial * Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis, or has a history of interstitial lung disease * Females who are breastfeeding or pregnant at Screening or Baseline. * Females of childbearing potential. * Participants must be on a stable dose of the same oral hormonal contraceptive product for at least 4 weeks before dosing with study drug and for the duration of the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)From the first dose until 30 days after the last dose (approximately 2 years 7 months)A TEAE was defined as an adverse event (AE) that emerged during the time from the first dose of study drug to 30 days following the last dose of study drug, having been absent at pretreatment (Baseline) or reemerged during treatment, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment relative to the pretreatment state, when the AE was continuous. A Serious AE is any untoward medical occurrence that at any dose: resulted in death; was life threatening (that is, the participant was at immediate risk of death from the AE as it occurred; this does not include an event that, had it occurred in a more severe form or was allowed to continue, might have caused death) required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect or is medically important due to other reasons than the above mentioned criteria.
Number of Participants With Dose-limiting ToxicitiesCycle 1 (Cycle length=21 days)A DLT is defined as any of the following: any of the hematological or nonhematological toxicities specified in the protocol that are considered to be at least possibly related to lenvatinib and/or pembrolizumab occurring during Cycle 1; failed to administer greater than or equal to 75 percent (%) of the planned dosage of lenvatinib as a result of treatment-related toxicity during Cycle 1; participants who discontinued due to treatment-related toxicity in Cycle 1; greater than a 2-week delay in starting pembrolizumab in Cycle 2 because of a treatment-related toxicity, even if the toxicity does not meet DLT criteria.

Secondary

MeasureTime frameDescription
Cmax: Maximum Plasma Concentration of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours
Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours
T1/2: Terminal Half-life of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours
AUC(0-t): Area Under the Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours
AUC(0-inf): Area Under the Concentration-time Curve From Zero (Pre-dose) Extrapolated to Infinite Time of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours
Vz/F: Apparent Volume of Distribution at Terminal Phase of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours
CL/F: Apparent Total Clearance Following Oral Dosing of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours
MRT: Mean Residence Time of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours
Css,Max: Maximum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
Objective Response Rate (ORR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.1From date of first dose of study drug until disease progression, development of unacceptable toxicity, withdrawal of consent, or up to approximately 2 years 7 monthsORR was defined as the percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR) for target and non-target lesions. CR was defined as the disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (target or non-target) had to be reduced in the short axis to less than 10 millimeter (mm). PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. The tumor assessment was done using number of lesions based on modified RECIST 1.1 for assessing tumor burden up to 10 target lesions with up to 5 target lesions per organ.
Tss,Max: Time to Reach the Maximum Plasma Concentration (Cmax) at Steady State of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
AUC(0-tau): Area Under the Plasma Concentration-time Curve Over the Dosing Interval of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
Clss/F: Apparent Total Clearance Following Oral Administration at Steady State of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
Css,Av: Average Steady State Plasma Concentration of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
Rac (Cmax): Accumulation Index of Cmax for Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours and Cycle 1 Day 15: 0-24 hoursRac (Cmax) was calculated as the ratio of drug concentrations observed during a dosing interval at steady state divided by drug concentrations seen during the dosing interval after a single (first) dose. Rac (Cmax) = Css,max on Cycle 1 Day 15 / Cmax on Cycle 1 Day 1
Rac (AUC): Accumulation Index of AUC for Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours and Cycle 1 Day 15: 0-24 hoursRac (AUC) was calculated as the ratio of drug concentrations observed during a dosing interval at steady state divided by drug concentrations seen during the dosing interval after a single (first) dose. Rac (AUC) = AUC(0-t) on Cycle 1 Day 15 / AUC(0-t) on Cycle 1 Day 1.
Lambda z: Terminal Phase Elimination Rate Constant of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours
PTF: Peak-trough Fluctuation Ratio of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hoursThe peak trough fluctuation within complete dosing interval at steady state, calculated as PTF (%) = (\[Cmax - Cmin\]/Cav ) multiplied by 100
Number of Participants Positive for Serum Anti-drug Antibodies (ADA) Status for PembrolizumabDay 1 of Cycles 1, 2, 4, 6, and 8 and every 4 cycles thereafter; within 30 days after discontinuation or until the initiation of other anticancer treatment, whichever is earlier (Cycle length=21 days); up to 31 months
Css,Min: Minimum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15: 0-24 hours
Duration of Response (DOR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.1From date of first dose of study drug until disease progression, development of unacceptable toxicity, withdrawal of consent, or up to approximately 2 years 7 months.DOR was defined as time from the first documented of CR or PR to the date of first documentation of disease progression (PD) (based on modified RECIST 1.1) or death (whichever occurs first). CR was defined as the disappearance of all target lesions and non-target lesions. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. PD for target lesion, was defined as a minimum 20% increase and a minimum 5 mm absolute increase in sum of diameters compared to nadir, or PD for non-target lesion(s) or unequivocal new lesion(s). Nadir was defined as lowest measure sum of diameters of target lesions at any time point from baseline onward. The tumor assessment was done using number of lesions based on modified RECIST 1.1 for assessing tumor burden up to 10 target lesions with up to 5 target lesions per organ. DOR = Date of PD/death (whichever occurs first) - Date of first CR or PR + 1.

Countries

Japan

Participant flow

Recruitment details

Participants took part in the study at 1 investigative site in Japan from 12 Jan 2017 to 15 Apr 2020.

Pre-assignment details

A total of 11 participants were screened, of which 5 were screen failures and 6 received study treatment.

Participants by arm

ArmCount
Lenvatinib 20 mg Plus Pembrolizumab 200 mg
Participants with selected solid tumors received oral lenvatinib at a starting dose of 20 mg, capsule, once daily in combination with intravenous pembrolizumab 200 mg every 3 weeks on a 21-day treatment cycle to confirm the dose tolerability by assessing DLTs. In case of dose intolerability in Cycle 1, lenvatinib dose was reduced from 20 mg to 14 mg once daily, in combination with 200 mg pembrolizumab every 3 weeks administered up to maximum of 45 cycles or until disease progression, development of unacceptable toxicity, withdrawal of consent, or sponsor termination of the study (31 months).
6
Total6

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1

Baseline characteristics

CharacteristicLenvatinib 20 mg Plus Pembrolizumab 200 mg
Age, Continuous55.0 years
STANDARD_DEVIATION 13.39
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
6 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
0 Participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 6
other
Total, other adverse events
6 / 6
serious
Total, serious adverse events
4 / 6

Outcome results

Primary

Number of Participants With Dose-limiting Toxicities

A DLT is defined as any of the following: any of the hematological or nonhematological toxicities specified in the protocol that are considered to be at least possibly related to lenvatinib and/or pembrolizumab occurring during Cycle 1; failed to administer greater than or equal to 75 percent (%) of the planned dosage of lenvatinib as a result of treatment-related toxicity during Cycle 1; participants who discontinued due to treatment-related toxicity in Cycle 1; greater than a 2-week delay in starting pembrolizumab in Cycle 2 because of a treatment-related toxicity, even if the toxicity does not meet DLT criteria.

Time frame: Cycle 1 (Cycle length=21 days)

Population: The DLT set included all participants who completed Cycle 1 without major protocol deviation with at least 75% of study drug compliance and were assessed for DLT, and participants who experienced DLT during Cycle 1.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgNumber of Participants With Dose-limiting Toxicities0 Participants
Primary

Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)

A TEAE was defined as an adverse event (AE) that emerged during the time from the first dose of study drug to 30 days following the last dose of study drug, having been absent at pretreatment (Baseline) or reemerged during treatment, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment relative to the pretreatment state, when the AE was continuous. A Serious AE is any untoward medical occurrence that at any dose: resulted in death; was life threatening (that is, the participant was at immediate risk of death from the AE as it occurred; this does not include an event that, had it occurred in a more severe form or was allowed to continue, might have caused death) required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect or is medically important due to other reasons than the above mentioned criteria.

Time frame: From the first dose until 30 days after the last dose (approximately 2 years 7 months)

Population: The safety analysis set included all participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)TEAEs6 Participants
Lenvatinib 20 mg Plus Pembrolizumab 200 mgNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)SAEs4 Participants
Secondary

AUC(0-inf): Area Under the Concentration-time Curve From Zero (Pre-dose) Extrapolated to Infinite Time of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgAUC(0-inf): Area Under the Concentration-time Curve From Zero (Pre-dose) Extrapolated to Infinite Time of Lenvatinib in Combination With Pembrolizumab3880 ng*h/mLStandard Deviation 2090
Secondary

AUC(0-t): Area Under the Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgAUC(0-t): Area Under the Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration of Lenvatinib in Combination With PembrolizumabCycle 1 Day 13040 nanogram*hour per milliliter (ng*h/mL)Standard Deviation 1780
Lenvatinib 20 mg Plus Pembrolizumab 200 mgAUC(0-t): Area Under the Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration of Lenvatinib in Combination With PembrolizumabCycle 1 Day 154280 nanogram*hour per milliliter (ng*h/mL)Standard Deviation 2600
Secondary

AUC(0-tau): Area Under the Plasma Concentration-time Curve Over the Dosing Interval of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgAUC(0-tau): Area Under the Plasma Concentration-time Curve Over the Dosing Interval of Lenvatinib in Combination With Pembrolizumab6780 ng*h/mLStandard Deviation 1820
Secondary

CL/F: Apparent Total Clearance Following Oral Dosing of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here, overall number analyzed N are the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgCL/F: Apparent Total Clearance Following Oral Dosing of Lenvatinib in Combination With Pembrolizumab5.15 liter per hour (L/hr)Standard Deviation 2.78
Secondary

Clss/F: Apparent Total Clearance Following Oral Administration at Steady State of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgClss/F: Apparent Total Clearance Following Oral Administration at Steady State of Lenvatinib in Combination With Pembrolizumab2.95 L/hStandard Deviation 0.932
Secondary

Cmax: Maximum Plasma Concentration of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgCmax: Maximum Plasma Concentration of Lenvatinib in Combination With Pembrolizumab325 nanogram per milliliter (ng/mL)Standard Deviation 233
Secondary

Css,Av: Average Steady State Plasma Concentration of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgCss,Av: Average Steady State Plasma Concentration of Lenvatinib in Combination With Pembrolizumab283 ng/mLStandard Deviation 75.8
Secondary

Css,Max: Maximum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgCss,Max: Maximum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With Pembrolizumab355 ng/mLStandard Deviation 319
Secondary

Css,Min: Minimum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgCss,Min: Minimum Observed Plasma Concentration at Steady State of Lenvatinib in Combination With Pembrolizumab60.1 ng/mLStandard Deviation 24.6
Secondary

Duration of Response (DOR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.1

DOR was defined as time from the first documented of CR or PR to the date of first documentation of disease progression (PD) (based on modified RECIST 1.1) or death (whichever occurs first). CR was defined as the disappearance of all target lesions and non-target lesions. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. PD for target lesion, was defined as a minimum 20% increase and a minimum 5 mm absolute increase in sum of diameters compared to nadir, or PD for non-target lesion(s) or unequivocal new lesion(s). Nadir was defined as lowest measure sum of diameters of target lesions at any time point from baseline onward. The tumor assessment was done using number of lesions based on modified RECIST 1.1 for assessing tumor burden up to 10 target lesions with up to 5 target lesions per organ. DOR = Date of PD/death (whichever occurs first) - Date of first CR or PR + 1.

Time frame: From date of first dose of study drug until disease progression, development of unacceptable toxicity, withdrawal of consent, or up to approximately 2 years 7 months.

Population: The efficacy analysis set included all participants who received at least 1 dose of study drug. Here overall number analyzed N included the participants who had CR or PR.

ArmMeasureValue (MEDIAN)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgDuration of Response (DOR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.1NA months
Secondary

Lambda z: Terminal Phase Elimination Rate Constant of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgLambda z: Terminal Phase Elimination Rate Constant of Lenvatinib in Combination With PembrolizumabCycle 1 Day 150.0956 1/hourStandard Deviation 0.00573
Lenvatinib 20 mg Plus Pembrolizumab 200 mgLambda z: Terminal Phase Elimination Rate Constant of Lenvatinib in Combination With PembrolizumabCycle 1 Day 10.123 1/hourStandard Deviation 0.00354
Secondary

MRT: Mean Residence Time of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgMRT: Mean Residence Time of Lenvatinib in Combination With PembrolizumabCycle 1 Day 19.06 hoursStandard Deviation 0.983
Lenvatinib 20 mg Plus Pembrolizumab 200 mgMRT: Mean Residence Time of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1511.8 hoursStandard Deviation 0.141
Secondary

Number of Participants Positive for Serum Anti-drug Antibodies (ADA) Status for Pembrolizumab

Time frame: Day 1 of Cycles 1, 2, 4, 6, and 8 and every 4 cycles thereafter; within 30 days after discontinuation or until the initiation of other anticancer treatment, whichever is earlier (Cycle length=21 days); up to 31 months

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgNumber of Participants Positive for Serum Anti-drug Antibodies (ADA) Status for Pembrolizumab0 Participants
Secondary

Objective Response Rate (ORR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.1

ORR was defined as the percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR) for target and non-target lesions. CR was defined as the disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (target or non-target) had to be reduced in the short axis to less than 10 millimeter (mm). PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. The tumor assessment was done using number of lesions based on modified RECIST 1.1 for assessing tumor burden up to 10 target lesions with up to 5 target lesions per organ.

Time frame: From date of first dose of study drug until disease progression, development of unacceptable toxicity, withdrawal of consent, or up to approximately 2 years 7 months

Population: The efficacy analysis set included all participants who received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgObjective Response Rate (ORR) Based on Modified Response Evaluation Criteria In Solid Tumors (RECIST) v1.133.3 percentage of participants
Secondary

PTF: Peak-trough Fluctuation Ratio of Lenvatinib in Combination With Pembrolizumab

The peak trough fluctuation within complete dosing interval at steady state, calculated as PTF (%) = (\[Cmax - Cmin\]/Cav ) multiplied by 100

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgPTF: Peak-trough Fluctuation Ratio of Lenvatinib in Combination With Pembrolizumab194 Percentage fluctuationStandard Deviation 48.8
Secondary

Rac (AUC): Accumulation Index of AUC for Lenvatinib in Combination With Pembrolizumab

Rac (AUC) was calculated as the ratio of drug concentrations observed during a dosing interval at steady state divided by drug concentrations seen during the dosing interval after a single (first) dose. Rac (AUC) = AUC(0-t) on Cycle 1 Day 15 / AUC(0-t) on Cycle 1 Day 1.

Time frame: Cycle 1 Day 1: 0-24 hours and Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgRac (AUC): Accumulation Index of AUC for Lenvatinib in Combination With Pembrolizumab1.46 ratioStandard Deviation 0.45
Secondary

Rac (Cmax): Accumulation Index of Cmax for Lenvatinib in Combination With Pembrolizumab

Rac (Cmax) was calculated as the ratio of drug concentrations observed during a dosing interval at steady state divided by drug concentrations seen during the dosing interval after a single (first) dose. Rac (Cmax) = Css,max on Cycle 1 Day 15 / Cmax on Cycle 1 Day 1

Time frame: Cycle 1 Day 1: 0-24 hours and Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgRac (Cmax): Accumulation Index of Cmax for Lenvatinib in Combination With Pembrolizumab1.14 ratioStandard Deviation 0.376
Secondary

T1/2: Terminal Half-life of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureGroupValue (MEDIAN)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgT1/2: Terminal Half-life of Lenvatinib in Combination With PembrolizumabCycle 1 Day 15.62 hours
Lenvatinib 20 mg Plus Pembrolizumab 200 mgT1/2: Terminal Half-life of Lenvatinib in Combination With PembrolizumabCycle 1 Day 157.26 hours
Secondary

Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (MEDIAN)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgTmax: Time to Reach the Maximum Plasma Concentration (Cmax) of Lenvatinib in Combination With Pembrolizumab3.85 hours
Secondary

Tss,Max: Time to Reach the Maximum Plasma Concentration (Cmax) at Steady State of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data.

ArmMeasureValue (MEDIAN)
Lenvatinib 20 mg Plus Pembrolizumab 200 mgTss,Max: Time to Reach the Maximum Plasma Concentration (Cmax) at Steady State of Lenvatinib in Combination With Pembrolizumab7.14 hours
Secondary

Vz/F: Apparent Volume of Distribution at Terminal Phase of Lenvatinib in Combination With Pembrolizumab

Time frame: Cycle 1 Day 1: 0-24 hours; Cycle 1 Day 15: 0-24 hours

Population: The PK analysis set included all participants who received at least 1 dose of lenvatinib and pembrolizumab, and had evaluable concentration data. Here overall number analyzed N included the participants who were evaluable for the outcome measure.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Lenvatinib 20 mg Plus Pembrolizumab 200 mgVz/F: Apparent Volume of Distribution at Terminal Phase of Lenvatinib in Combination With PembrolizumabCycle 1 Day 141.8 liter (L)Standard Deviation 23.5
Lenvatinib 20 mg Plus Pembrolizumab 200 mgVz/F: Apparent Volume of Distribution at Terminal Phase of Lenvatinib in Combination With PembrolizumabCycle 1 Day 1526.1 liter (L)Standard Deviation 0.636

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026