A Trial of Lenvatinib (E7080) in Subjects With Iodine-131 Refractory Differentiated Thyroid Cancer to Evaluate Whether an Oral Starting Dose of 18 Milligram (mg) Daily Will Provide Comparable Efficacy to a 24 mg Starting Dose, But Have a Better Safety Profile

Thyroid Cancer Clinical Trial

Official title: A Multicenter, Randomized, Double-Blind Phase 2 Trial of Lenvatinib (E7080) in Subjects With 131I-Refractory Differentiated Thyroid Cancer to Evaluate Whether an Oral Starting Dose of 18 mg Daily Will Provide Comparable Efficacy to a 24-mg Starting Dose, But Have a Better Safety Profile

Status Completed

Clinical Trial Summary

This is a multicenter, randomized, double-blind study being conducted as a postmarketing requirement to the US Food and Drug Administration (FDA) to evaluate whether there is a lower starting dosage of lenvatinib 24 mg once daily (QD) that provides comparable efficacy but has a better safety profile in participants with radioiodine-refractory differentiated thyroid cancer RR-DTC with radiographic evidence of disease progression within the prior 12 months.

Clinical Trial Description

This study consists of 2 phases, the Prerandomization Phase and the Randomization Phase. The Prerandomization Phase will last no longer than 28 days and will include a Screening Period to establish protocol eligibility and a Baseline Period to confirm eligibility and establish disease characteristics prior to randomization and treatment.

The Randomization Phase will consist of a Treatment Period and a Follow-up Period. It will begin at the time of randomization of the first participant and will consist of 28-day blinded study treatment cycles. The data cutoff for the primary analysis will occur at the end of the Randomization Phase, which is defined as when the last participant enrolled completes the Week 24 tumor assessments or discontinues study treatment if before Week 24.

Participants on treatment at the time of data cutoff for the primary analysis will remain on blinded investigational product until the primary analysis has been completed, after which they will transition to commercial lenvatinib outside the study. The last participant's last assessment (Off-treatment visit) will be the End of Study.

Participants will be randomly assigned to treatment with 1 of 2 blinded starting dosages of lenvatinib in a 1:1 ratio to receive lenvatinib 18 mg or 24 mg orally once daily (QD). Dose reductions will occur in succession based on the previous dose level (24, 20, 14, 10, and 8 mg QD, or 18, 14, 10, 8, and 4 mg QD, respectively). Once the dose has been reduced, it may not be increased at a later date. ;

Related Conditions & MeSH terms

• Thyroid Cancer
• Thyroid Diseases
• Thyroid Neoplasms

• NCT number: NCT02702388
• Study type: Interventional
• Source: Eisai Inc.
• Status: Completed
• Phase: Phase 2
• Start date: June 8, 2017
• Completion date: September 10, 2020