Evaluating the Safety and Efficacy of Oral Lenvatinib in Medullary and Iodine-131 Refractory, Unresectable Differentiated Thyroid Cancers, Stratified by Histology
- Conditions
- Thyroid Cancer
- Interventions
- Registration Number
- NCT00784303
- Lead Sponsor
- Eisai Inc.
- Brief Summary
The purpose of this study is to determine the safety and efficacy of oral lenvatinib in participants with medullary thyroid cancer (MTC) or radioiodine (131 I)-refractory/resistant differentiated thyroid cancer (DTC), unresectable differentiated thyroid cancers, stratified by Histology.
- Detailed Description
This study contained 3 Phases: the Pretreatment Phase, the Treatment Phase, and the Extension Phase. The Pretreatment Phase lasted no longer than 28 days. Informed consent was obtained and protocol eligibility and disease characteristics were established prior to treatment. The Treatment Phase consisted of a Treatment Period and a Follow-up Period. The Treatment Period of the Treatment Phase began at the time that the first participant began study drug administration and ended at the time when all participants enrolled completed 8 cycles of treatment or discontinued study treatment prior to the eighth cycle (ie, time of data cutoff for the primary study analysis \[Primary Completion Date\]). All participants then entered the Extension Phase. The Extension Phase consisted of a Treatment Period and a Follow-up Period. The Extension Phase began immediately after the Treatment Phase ended and included all participants that were either still receiving treatment or in follow-up. The time of data cutoff for the primary study analysis occurred when all subjects in the study completed 8 cycles of treatment or discontinued study treatment prior to the eighth cycle.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 117
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description MTC cohort Lenvatinib (MTC Cohort) This arm will enroll participants with medullary thyroid cancer. DTC cohort Lenvatinib (DTC Cohort) This arm will enroll participants with radioiodine (131 I)-refractory/resistant differentiated thyroid cancer.
- Primary Outcome Measures
Name Time Method Objective Response Rate (ORR) From date of treatment start until disease progression, development of unacceptable toxicity, withdrawal of consent, participant's choice to stop study treatment, or up to data cutoff date 11 April 2011, for up to approximately 2 years 5 months ORR was the percentage of participants with best overall response (BOR) of complete response (CR) and partial response (PR) based on modified Response Evaluation Criteria in Solid Tumors (RECIST) 1.0 for target lesions using magnetic resonance imaging/computed tomography (MRI/CT) scans, as determined by independent imaging review (IIR). CR was defined as disappearance of all target lesions. PR was defined as at least a 30% decrease in the sum of the longest diameter of target lesions, taking as reference the baseline sum of the longest diameter. ORR=CR+PR, was presented with 2-sided 95% confidence interval (CI) by the method of Clopper and Pearson.
Plasma Pharmacokinetics (PK): Steady State Area Under the Plasma Concentration Curve (AUC) Cycle 1 Day 1 (predose and at 0.5 and 2 hours postdose), Cycle 1 Day 8 (predose), Cycle 2 Day 1 (predose and at 0.5 and 2 hours postdose), and Cycle 3 Day 1 (predose and at 2 hours postdose) (Cycle length= 28 days) Up to 9 samples per participant were obtained at specific time points. Plasma concentrations of lenvatinib were analyzed using standard analysis methods. Due to the sparse PK sampling in this study, the data were pooled with data from other Phase 1 studies conducted in participants with solid tumors for PK model development and covariate analysis. Individual exposure (steady state AUC) to lenvatinib in MTC and DTC subjects in this study was derived based on the individual predicted steady state AUC from the final PK model. Only data for participants taking 24 mg lenvatinib daily were reported (participants taking 20 mg lenvatinib daily were not included in this data set).
- Secondary Outcome Measures
Name Time Method Change From Baseline in Free Thyroid Stimulating Hormone (TSH) Day 1 or within 72 hours prior to Day 1 of Cycles 2 to 20, and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to measure free TSH were collected at Screening (Baseline), Cycle 1 Day 15 (MTC cohort), Day 1 of Cycles 2 to 20, and Final Visit. Changes in free TSH concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included. For any free TSH result that was reported as \<0.008 mIU/L, 0.004 mIU/L was used for calculating summary statistics.
Percent Change From Baseline in Concentrations of Thyroglobulin (DTC Only) Day 1 or within 72 hours prior to Day 1 of Cycles 2 to 19, and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to obtain serum were collected at Cycle 1 Day 1 (Baseline), Day 1 of Cycles 2 to 19, Final Visit, and were analyzed for thyroglobulin concentration. Percent changes in thyroglobulin concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included.
Change From Baseline in Concentrations of M-30 Neo-Antigen Cycle 1 (Day 8), Cycle 2 (Days 1, 8 & 15), Cycles 3, 4, 5, 6, 7, 8, 9, 11 & 13 (Day 1) and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to obtain serum were collected at Cycle 1 Day 1(Baseline), Cycle 1 Day 8, Cycle 2 Days 1,8 \&15, Cycles 3 to 9,11,13 Day 1, Final Visit, and analyzed for M-30 concentration. Changes in M-30 concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included. For results reported as BQL, zero was used for calculating summary statistics. If more than 50% of the results at a visit were BQL, then only 'n', 'minimum' and 'maximum' were calculated for summary statistics.
Progression Free Survival (PFS) Assessed as Per IIR From date of treatment start until date of progressive disease or death from any cause, assessed up to data cutoff date 11 April 2011, for up to approximately 2 years 5 months PFS was defined as the time from the date of treatment start until progressive disease or death from any cause in the absence of progressive disease. Disease progression was defined as at least a 20% increase in the sum of the longest diameter of target lesions (taking as reference the smallest sum on study), recorded since the treatment started or the appearance of 1 or more new lesions as assessed by IIR using RECIST 1.0. The duration of PFS was calculated as end date minus date of first drug plus 1, based on assessments by IIR. PFS was calculated using Kaplan-Meier estimate and presented with 2-sided 95% Cl.
Change From Baseline in Concentrations of Cytochrome C (CytoC) Cycle 1 (Day 8), Cycle 2 (Days 1, 8 and 15), Cycles 3, 4, 5, 6, 7, 8, 9, 11, & 13 (Day 1), and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to obtain serum were collected at Cycle 1 Day 1(Baseline), Cycle 1 Day 8, Cycle 2 Days 1,8 \&15, Cycles 3 to 9,11,13 Day 1, Final Visit, and analyzed for CytoC concentration. Changes in CytoC concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included. For results reported as below quantifiable level (BQL), zero was used for calculating summary statistics. If more than 50% of the results at a visit were BQL, then only 'n', 'minimum' and 'maximum' were calculated for summary statistics.
Change From Baseline in Concentrations of Activated Caspase 3/7 (Casp 3/7) Cycle 1 (Day 8), Cycle 2 (Days 1, 8, & 15), Cycles 3, 4, 5, 6, 7, 8, 9, 11, & 13 (Day 1) and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to obtain serum were collected at Cycle 1 Day 1 (Baseline), Cycle 1 Day 8, Cycle 2 Days 1, 8, and 15, Cycles 3 to 9, 11, 13 (Day 1), Final Visit, and analyzed for Casp 3/7 concentration. Changes in Casp 3/7 concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included. The concentrations of Casp 3/7 were BQL for most participants at most time points. For results reported as BQL, zero was used for calculating summary statistics. If more than 50% of the results at a visit were BQL, then only 'n', 'minimum' and 'maximum' were calculated for summary statistics.
Time to Response (TTR) Assessed as Per IIR From date of treatment start until date of first CR or PR, assessed up to data cutoff date 11 April 2011 TTR was defined as "time from start of treatment to the time when a participant first achieves a response of PR/CR" based on assessments by IIR. TTR was only calculated for participants with confirmed PR or CR.
Overall Survival (OS) From date of treatment start until date of death from any cause, assessed up to data cutoff date 11 April 2011, for up to approximately 2 years 5 months OS was defined as the time from the date of treatment start until death from any cause. The duration of OS was calculated as 'end date minus date of first drug plus 1', based on assessments by IIR. Participants without a reported death or those lost to follow-up were censored at their last known alive date at the database cutoff. OS was calculated using Kaplan-Meier estimate and presented with 2-sided 95% Cl.
Disease Control Rate (DCR) Assessed as Per IIR From date of treatment start until disease progression, development of unacceptable toxicity, withdrawal of consent, participant's choice to stop study treatment, or up to data cutoff date 11 April 2011, for up to approximately 2 years 5 months DCR was the percentage of the participants who had BOR of CR, PR, and stable disease (SD) with the minimum duration of SD lasting greater than or equal to 7 weeks, based on assessments by IIR. DCR = CR+PR+SD greater than or equal to 7 weeks
Change From Baseline in Free Thyroxine (T4) Day 1 or within 72 hours prior to Day 1 of Cycles 2 to 20, and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to measure free T4 were collected at Screening (Baseline), Cycle 1 Day 15 (MTC cohort), Day 1 of Cycles 2 to 20, and Final Visit. Changes in free T4 concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included.
Duration of Response (DoR) Assessed as Per Independent Imaging Reviewers (IIR) From date of the first CR or PR until the date of first documentation of disease progression or date of death, assessed up to data cutoff date 11 April 2011 DoR was based on IIR was the time from date of the first CR or PR until the date of first documentation of disease progression or date of death, if death occurred prior to disease progression, for the participants who had BOR of CR or PR. Participants without progressive disease or death were censored at the date of last adequate tumor assessment. Duration of response = End Date - Date of first CR or PR + 1
Clinical Benefit Rate (CBR) Assessed as Per IIR From date of treatment start until disease progression, development of unacceptable toxicity, withdrawal of consent, participant's choice to stop study treatment, or up to data cutoff date 11 April 2011, for up to approximately 2 years 5 months CBR was the percentage of the participants who had BOR of CR, PR, and SD with the minimum duration of SD lasting greater than or equal to 23 weeks, based on assessments by IIR. CBR = CR+PR+SD greater than or equal to 23 weeks
Percent Change From Baseline in Concentrations of Calcitonin (MTC Only) Day 1 or within 72 hours prior to Day 1 of Cycles 2 to 20, and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples to obtain serum were collected at Cycle 1 Day 1(Baseline), Day 1 of Cycles 2 to 20, Final Visit, and were analyzed for calcitonin concentration. Percent changes in calcitonin concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included.
Percent Change From Baseline in Concentrations of Carcinoembryonic Antigen (CEA) (MTC Only) Day 1 or within 72 hours prior to Day 1 of Cycles 2 to 20, and Final Visit, up to data cutoff date 11 April 2011 (Cycle length= 28 days) Blood samples were collected at Cycle 1 Day 1(Baseline), Day 1 of Cycles 2 to 20, Final Visit, and were analyzed for CEA concentration. Percent changes in CEA concentration values from baseline to specific time points were calculated. Only participants with both baseline and relevant visit values were included.
Number of Participants With Non-Serious Adverse Events (AEs) and Serious Adverse Events (SAEs) as a Measure of Safety and Tolerability of Lenvatinib For each participant, from the first dose till 30 days after the last dose of study treatment (up to approximately 10 years 4 months) Safety assessments consisted of monitoring and recording all AEs (serious and non-serious) and SAEs; concomitant medications, regular monitoring of hematology, blood chemistry, and urine values; periodic measurement of vital signs, Eastern Cooperative Oncology Group (ECOG) performance status, New York Heart Association (NYHA) assessments, electrocardiograms (ECGs), echocardiograms; and performance of physical examinations.