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Evaluation of Food Effect on Pharmacokinetics of Vismodegib

Evaluation of Food Effect on Pharmacokinetics of GDC-0449, an Inhibitor of Hedgehog Signaling

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01174264
Enrollment
63
Registered
2010-08-03
Start date
2009-10-31
Completion date
2014-12-31
Last updated
2017-05-19

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

Conditions

Malignant Neoplasm

Brief summary

This randomized clinical trial studies the effect of food on the pharmacokinetics of vismodegib. Studying the effects of meals on the absorption of vismodegib may help doctors prescribe correct doses and label the drug accurately.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate the effect of prandial states on the pharmacokinetic parameters of GDC-0449 (vismodegib). II. To evaluate the effect of fat content of meals on the pharmacokinetic parameters of GDC-0449. SECONDARY OBJECTIVES: I. To evaluate the effect of prandial states and fat content of meals on the safety profile of GDC-0449. II. To describe any anticancer activities of GDC-0449. OUTLINE: Patients are randomized to 1 of 3 treatment arms. ARM I: Patients receive a single dose of vismodegib orally (PO) on an empty stomach. Beginning 7 days later, patients receive vismodegib PO on an empty stomach daily on days 1-28. ARM II: Patients receive a single dose of vismodegib PO after eating a high fat meal. Beginning 7 days later, patients receive vismodegib PO on an empty stomach daily on days 1-28. ARM III: Patients receive a single dose of vismodegib PO after eating a low fat meal. Beginning 7 days later, patients receive vismodegib PO after eating a meal daily on days 1-28. In all arms, treatment repeats every 28 days for 2 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days.

Interventions

OTHERPharmacological Study

Correlative studies

DRUGVismodegib

Given PO

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Histologically confirmed advanced malignancies (except for leukemias) refractory to standard of care therapy, or for whom no standard of care therapy is available * Measurable or non-measurable disease * An anticipated life expectancy \> 3 months * Karnofsky performance status of \> 70% * Leukocytes \>= 3,000/mcL * Absolute neutrophil count \>= 1,500/mcL * Platelets \>= 100,000/mcL * Total bilirubin within normal institutional limits * Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 X institutional upper limit of normal * Creatinine =\< 1.5 X institutional upper limit of normal * Women of child-bearing potential and men must use two forms of contraception (i.e., barrier contraception and one other method of contraception) at least 4 weeks prior to study entry, for the duration of study participation, and for at least 12 months post-treatment; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately * Women of childbearing potential are required to have a negative serum pregnancy test (with a sensitivity of at least 25 mIU/mL) within 48 hours prior to the first dose of GDC-0449 (serum or urine); a pregnancy test (serum or urine) will be administered every 4 weeks if their menstrual cycles are regular or every 2 weeks if their cycles are irregular while on study within the 24-hour period prior to the administration of GDC-0449; a positive urine test must be confirmed by a serum pregnancy test; prior to dispensing GDC-0449, the investigator must confirm and document the patient's use of two contraceptive methods, dates of negative pregnancy test, and confirm the patient's understanding of the teratogenic potential of GDC-0449 * Female subjects of childbearing potential are defined as follows: * Patients with regular menses * Patients, after menarche with amenorrhea, irregular cycles, or using a contraceptive method that precludes withdrawal bleeding * Women who have had tubal ligation * Female subjects may be considered to NOT be of childbearing potential for the following reasons: * The patient has undergone total abdominal hysterectomy with bilateral salpingo-oophorectomy or bilateral oophorectomy * The patient is medically confirmed to menopausal (no menstrual period) for 24 consecutive months * Pre-pubertal females; the parent or guardian of young female patients who have not yet started menstruation should verify that menstruation has not begun; if a young female patient reaches menarche during the study, then she is to be considered as a woman of childbearing potential from that time forward * Ability to understand and the willingness to sign a written informed consent document

Exclusion criteria

* Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier * Patients may not be receiving any other investigational agents * Patients with known brain metastases should be excluded from this clinical trial * History of allergic reactions attributed to compounds of similar chemical or biologic composition to GDC-0449 or other agents used in study * Patients with malabsorption syndrome or other condition that would interfere with intestinal absorption; patients must be able to swallow capsules * Patients with clinically important history of liver disease, including viral or other hepatitis or cirrhosis are ineligible * Patients with uncontrolled hypocalcemia, hypomagnesemia, hyponatremia or hypokalemia defined as less than the lower limit of normal for the institution, despite adequate electrolyte supplementation are excluded from this study * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Pregnant women are excluded from this study; breastfeeding should be discontinued if the mother is treated with GDC-0449 * Human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible * Patients with medical conditions that require the following medications will be excluded * Strong inhibitors of cytochrome P450 3A4 (CYP3A4) (clarithromycin, itraconazole, ketoconazole, nefazodone, erythromycin, grapefruit juice, verapamil, and diltiazem) * Strong inhibitors of cytochrome P450 2C9 (CYP2C9) (fluconazole and amiodarone) * Inducers of CYP3A4 (carbamazepine, dexamethasone, modafinil, oxcarbazepine, phenobarbital, phenytoin, pioglitazone, rifabutin, rifampin, St. John's wort, troglitazone) * Inducers of CYP2C9 (rifampin, and secobarbital) * Patients who have a medical condition or dietary restrictions that prevent him or her from fasting for at least 10 hours (overnight) or eating a high calorie meal * Any ambiguity in the inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Tmax Following Steady State Exposure for 14 Days24 hoursTime of maximum drug concentration.
Cmax Following Single Dose of Drug168 hoursHighest observed concentration over the 168 hour period. Blood samples were collected at j0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 24, 48, 120, and 168 hours.
AUC Following Single Dose of Drug168 hoursArea under the curve from 0-168 hours.
Tmax'Following Single Dose of Drug168 hoursTime of maximum drug concentration
Tlag Following Single Dose of Drug168 hoursTime between drug administration and when it is first observed in the systemic circulation.
Ctrough Following Steady State Exposure for 14 Days24 hoursMinimum blood concentration over 24-hour observation period. Blood sample collected at 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, and 24 hours.
Cmax Following Steady State Exposure for 14 Days24 hoursMaximum drug concentration over 24 hours.
AUC Following Steady State Exposure for 14 Days24 hoursArea under the curve from 0 to 24 hours.

Secondary

MeasureTime frameDescription
Objective Responses in Patients With Solid TumorsUp to 30 daysPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm I (Vismodegib on Empty Stomach)
Patients receive a single dose of vismodegib PO on an empty stomach. Beginning 7 days later, patients receive vismodegib PO on an empty stomach daily on days 1-28. Pharmacological Study: Correlative studies Vismodegib: Given PO
23
Arm II (Vismodegib After High Fat Meal)
Patients receive a single dose of vismodegib PO after eating a high fat meal. Beginning 7 days later, patients receive vismodegib PO on an empty stomach daily on days 1-28. Pharmacological Study: Correlative studies Vismodegib: Given PO
20
Arm III (Vismodegib After Low Fat Meal)
Patients receive a single dose of vismodegib PO after eating a low fat meal. Beginning 7 days later, patients receive vismodegib PO after eating a meal daily on days 1-28. Pharmacological Study: Correlative studies Vismodegib: Given PO
20
Total63

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Single Dose PharmacokineticsEarly progressive disease101
Single Dose PharmacokineticsPatient entered hospice care001
Steady-state PharmacokineticsNot evaluable602

Baseline characteristics

CharacteristicArm II (Vismodegib After High Fat Meal)Arm III (Vismodegib After Low Fat Meal)Arm I (Vismodegib on Empty Stomach)Total
Age, Continuous57 years64 years53 years61 years
Race/Ethnicity, Customized
African-American
3 participants2 participants6 participants11 participants
Race/Ethnicity, Customized
Hispanic
0 participants2 participants1 participants3 participants
Race/Ethnicity, Customized
White
17 participants16 participants16 participants49 participants
Region of Enrollment
United States
20 participants20 participants23 participants63 participants
Sex: Female, Male
Female
11 Participants14 Participants15 Participants40 Participants
Sex: Female, Male
Male
9 Participants6 Participants8 Participants23 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
31 / 310 / 030 / 30
serious
Total, serious adverse events
15 / 310 / 014 / 30

Outcome results

Primary

AUC Following Single Dose of Drug

Area under the curve from 0-168 hours.

Time frame: 168 hours

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)AUC Following Single Dose of Drug416635 ng*h/mLGeometric Coefficient of Variation 56
Arm II (Vismodegib After High Fat Meal)AUC Following Single Dose of Drug723822 ng*h/mLGeometric Coefficient of Variation 54
Arm III (Vismodegib After Low Fat Meal)AUC Following Single Dose of Drug466566 ng*h/mLGeometric Coefficient of Variation 38
p-value: 0.00890% CI: [1.25, 2.42]t-test, 2 sided
p-value: 0.5190% CI: [0.84, 1.49]t-test, 2 sided
Primary

AUC Following Steady State Exposure for 14 Days

Area under the curve from 0 to 24 hours.

Time frame: 24 hours

Population: 3 and 2 patients with missing data, respectively

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)AUC Following Steady State Exposure for 14 Days238740 ng*h/mLGeometric Coefficient of Variation 40
Arm III (Vismodegib After Low Fat Meal)AUC Following Steady State Exposure for 14 Days290896 ng*h/mLGeometric Coefficient of Variation 35
p-value: 0.09690% CI: [1, 1.48]t-test, 2 sided
Primary

Cmax Following Single Dose of Drug

Highest observed concentration over the 168 hour period. Blood samples were collected at j0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 24, 48, 120, and 168 hours.

Time frame: 168 hours

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Cmax Following Single Dose of Drug3244 ng/mlGeometric Coefficient of Variation 55
Arm II (Vismodegib After High Fat Meal)Cmax Following Single Dose of Drug5666 ng/mlGeometric Coefficient of Variation 45
Arm III (Vismodegib After Low Fat Meal)Cmax Following Single Dose of Drug3511 ng/mlGeometric Coefficient of Variation 40
p-value: 0.00390% CI: [1.3, 2.34]t-test, 2 sided
p-value: 0.6590% CI: [0.81, 1.44]t-test, 2 sided
Primary

Cmax Following Steady State Exposure for 14 Days

Maximum drug concentration over 24 hours.

Time frame: 24 hours

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Cmax Following Steady State Exposure for 14 Days11449 ng/mlGeometric Coefficient of Variation 37
Arm III (Vismodegib After Low Fat Meal)Cmax Following Steady State Exposure for 14 Days12950 ng/mlGeometric Coefficient of Variation 34
p-value: 0.2590% CI: [0.95, 1.35]t-test, 2 sided
Primary

Ctrough Following Steady State Exposure for 14 Days

Minimum blood concentration over 24-hour observation period. Blood sample collected at 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, and 24 hours.

Time frame: 24 hours

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Ctrough Following Steady State Exposure for 14 Days10493 ng/mlGeometric Coefficient of Variation 37
Arm III (Vismodegib After Low Fat Meal)Ctrough Following Steady State Exposure for 14 Days12171 ng/mlGeometric Coefficient of Variation 35
p-value: 0.1790% CI: [0.97, 1.38]t-test, 2 sided
Primary

Tlag Following Single Dose of Drug

Time between drug administration and when it is first observed in the systemic circulation.

Time frame: 168 hours

ArmMeasureValue (MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Tlag Following Single Dose of Drug0.11 hoursStandard Deviation 0.17
Arm II (Vismodegib After High Fat Meal)Tlag Following Single Dose of Drug0.50 hoursStandard Deviation 0.29
Arm III (Vismodegib After Low Fat Meal)Tlag Following Single Dose of Drug0.58 hoursStandard Deviation 0.45
p-value: 0.0001Wilcoxon (Mann-Whitney)
p-value: 0.0001Wilcoxon (Mann-Whitney)
Primary

Tmax'Following Single Dose of Drug

Time of maximum drug concentration

Time frame: 168 hours

ArmMeasureValue (MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Tmax'Following Single Dose of Drug57 hoursStandard Deviation 62
Arm II (Vismodegib After High Fat Meal)Tmax'Following Single Dose of Drug44 hoursStandard Deviation 48
Arm III (Vismodegib After Low Fat Meal)Tmax'Following Single Dose of Drug62 hoursStandard Deviation 57
p-value: 0.83Wilcoxon (Mann-Whitney)
p-value: 0.57Wilcoxon (Mann-Whitney)
Primary

Tmax Following Steady State Exposure for 14 Days

Time of maximum drug concentration.

Time frame: 24 hours

ArmMeasureValue (MEAN)Dispersion
Arm I (Vismodegib on Empty Stomach)Tmax Following Steady State Exposure for 14 Days6.7 hoursStandard Deviation 9.1
Arm III (Vismodegib After Low Fat Meal)Tmax Following Steady State Exposure for 14 Days10.2 hoursStandard Deviation 10.3
p-value: 0.27Wilcoxon (Mann-Whitney)
Secondary

Objective Responses in Patients With Solid Tumors

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Time frame: Up to 30 days

Population: 2 patients in Arm I and 4 patients in Arm III were non-evaluable for response.

ArmMeasureValue (NUMBER)
Arm I (Vismodegib on Empty Stomach)Objective Responses in Patients With Solid Tumors1 participants
Arm III (Vismodegib After Low Fat Meal)Objective Responses in Patients With Solid Tumors0 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026