Phase 1 Study to Determine the Effect of Lenvatinib (E7080) on the Pharmacokinetics of Midazolam in Subjects With Advanced Solid Tumors

Inclusion Criteria:

1. Age greater than or equal to 18 years at the time of informed consent.

2. Histologically or cytologically confirmed advanced solid tumors (excluding HCC) that
have progressed following standard therapy, or for which no standard therapy exists
(including surgery or radiation therapy) or participants with RR-DTC.

3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.

4. Life expectancy greater than or equal to 3 months.

5. Adequately controlled blood pressure (BP) with or without antihypertensive
medications, defined as BP less than or equal to 150/90 mmHg at screening and no
change in antihypertensive medications within 1 week prior to the Cycle 1 Day 1.

6. Adequate renal function defined as calculated creatinine clearance greater than or
equal to 30 mL/min per the Cockcroft and Gault formula.

7. Adequate bone marrow function:

1. Absolute neutrophil count (ANC) greater than or equal to 750/mm3 (greater than or
equal to 0.75 X 10^9/L)

2. Platelets greater than or equal to 75,000/mm3 (greater than or equal to 75 X
10^9/L)

3. Hemoglobin greater than or equal to 9.0 g/dL

8. Adequate blood coagulation function as evidenced by an International Normalized Ratio
(INR) less than or equal to 1.5.

9. Adequate liver function:

1. Total bilirubin less than or equal to 1.5 X the upper limit of normal (ULN)
except for unconjugated hyperbilirubinemia of Gilbert's syndrome

2. Alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate
aminotransferase (AST) less than or equal to 3 X ULN (less than or equal to 5 X
ULN if participant has liver metastases). If ALP is greater than 3 X ULN (in the
absence of liver metastases) or greater than 5 X 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 total ALP.

10. Participants with Hepatitis B or C are eligible on the condition that they have
adequate liver function as defined by Inclusion Criterion 9.

11. All prior therapy related toxicities must have resolved to Grade less than 2 severity
per Common Terminology Criteria for Adverse Events (CTCAE version 4.03), except
alopecia and infertility.

12. Left ventricular ejection fraction (LVEF) greater than 50% on echocardiography or
multiple gated acquisition (MUGA) scan.

13. Females must not be lactating or pregnant at screening or baseline (as documented by a
negative beta-human chorionic gonadotropin [B-hCG] test with a minimum sensitivity of
25 IU/L or equivalent units of B-hCG). A separate baseline assessment is required if a
negative screening pregnancy test was obtained more than 72 hours before the first
dose of study drug.

14. Participant must voluntarily agree to provide written informed consent.

15. Participant must be willing and able to comply with all aspects of the protocol.

Exclusion Criteria:

1. Participants with diagnosis of HCC.

2. Participants with known leptomeningeal metastases or untreated brain metastases.
Participants with known brain metastases will be eligible if they have completed the
primary brain therapy (such as whole brain radiotherapy, stereotactic radiosurgery, or
complete surgical resection) and if they have remained clinically stable,
asymptomatic, and off steroids for at least 28 days.

3. Participants taking medications that are known potent CYP3A4 inducers/inhibitors or
substrates with narrow therapeutic indices or St. John's Wort.

4. Participants unwilling to exclude grapefruit juice and grapefruit from their diet.

5. Participants who have received any anticancer treatment within 3 weeks or any
investigational agent within 30 days before the first dose of study drug or who have
not recovered from any acute toxicity greater than Grade 0 or 1 related to previous
anticancer treatment.

6. Major surgery within 4 weeks before the first dose of study drug.

7. Inability to take oral medication, or malabsorption syndrome or any other uncontrolled
gastrointestinal condition (eg, nausea, diarrhea, or vomiting) that might impair the
bioavailability of lenvatinib or midazolam.

8. Significant cardiovascular impairment: history of congestive heart failure greater
than New York Heart Association (NYHA) Class II, uncontrolled arterial hypertension,
unstable angina, myocardial infarction, or stroke within 6 months of the first dose of
study drug; or cardiac arrhythmia requiring medical treatment (including oral
anticoagulation).

9. A clinically significant electrocardiogram (ECG) abnormality (ie, corrected QT
interval [QTc] interval greater than 480 msec when electrolyte balance is normal), or
a history of risk factors for torsade de pointes, hypokalemia, long QT syndrome, or
the use of concomitant medications resulting in a prolongation of QTc interval.

10. Active hemoptysis (bright red blood of at least 2.5 mL ie, half teaspoon) within 3
weeks prior to the first dose of study drug.

11. Active infection (any infection requiring treatment).

12. Known hypersensitivity to any component of lenvatinib or midazolam.

13. Prior treatment with lenvatinib.

14. Achlorhydria or use of antacids, proton-pump inhibitors, or other drugs known to raise
gastric pH within 2 weeks before study drug administration.

15. Immunocompromised participants, including participants known to be infected with human
immunodeficiency virus (HIV).

16. Any other major illness that, in the investigator's judgment, will substantially
increase the risk associated with the participant's participation in this study.

17. Females who are pregnant or breastfeeding as well as all females of childbearing
potential who:

1. have had unprotected sexual intercourse within 30 days before study entry,

2. do not agree to use a highly effective method of contraception (eg, total
abstinence, an intrauterine device, a double-barrier method [such as condom plus
diaphragm with spermicide], a contraceptive implant, an oral contraceptive, or
have a vasectomized partner with confirmed azoospermia) throughout the entire
study period and for 28 days after study drug discontinuation,

3. are currently abstinent, and do not agree to use a double-barrier method (as
described above) or refrain from sexual activity during the study period and for
28 days after study drug discontinuation,

4. are using hormonal contraceptives but are not on a stable dose of the same
hormonal contraceptive product for at least 4 weeks before dosing and who do not
agree to use the same contraceptive during the study and for 28 days after study
drug discontinuation. All females will be considered of childbearing potential
unless they are postmenopausal (at least 12 months consecutive amenorrheic, in
the appropriate age group, and without other known or suspected cause) or have
been sterilized surgically (ie, bilateral tubal ligation, total hysterectomy, or
bilateral oophorectomy, all with surgery at least 1 month before dosing).