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A Pilot Trial of Itraconazole Pharmacokinetics in Patients With Metastatic Breast Cancer

A Pilot Trial of Itraconazole Pharmacokinetics in Patients With Metastatic Breast Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00798135
Enrollment
13
Registered
2008-11-25
Start date
2008-11-30
Completion date
2012-03-31
Last updated
2023-12-21

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

Conditions

Breast Neoplasms, Neoplasm Metastasis

Brief summary

Cancer cells need to be able to make new blood vessels in order to keep growing. This is called angiogenesis. In a laboratory setting, the drug itraconazole was shown to help stop the growth of new blood vessels (anti-angiogenesis). It is hoped that itraconazole will prevent new blood vessels from forming in humans too. The purpose of this study is to look at how the body processes and breaks down itraconazole (called pharmacokinetics). This study will also measure markers in your blood to see if itraconazole stops new blood vessels from forming. The safety of itraconazole will also be tested to see what effects (good and bad) it has on you and your breast cancer.

Interventions

DRUGitraconazole

oral itraconazole 200mg a day until disease progression or unacceptable toxicities.

Sponsors

Indiana University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

\- Patients must have a pathologically confirmed diagnosis of invasive carcinoma of the breast. - Patients must carry a diagnosis of metastatic breast cancer. - Patients must be able to swallow oral medications. - Patients with HER 2+ tumors must have received trastuzumab in the past and may have had lapatinib. - Patients must have an ECOG performance status of 0-1. - Patients must be informed of the investigational nature of the study and must sign and give written informed consent. - Patients must have recovered to grade \<1 from all acute toxicity of previous therapy for breast cancer with the exception of alopecia. - Adequate hematologic and hepatic function: 1)Absolute neutrophil count \>= 1,500 mm3 2) Platelet count \>= 100,000 mm3 3) Bilirubin \<= 1.5mg/dL x ULN 4) AST and/or ALT \<= 2 x ULN (\< 5 x ULN in presence of known liver metastasis). - Prior to study enrollment, women of childbearing potential (WOCBP) must be advised of the importance of avoiding pregnancy during trial participation and must practice an effective method of birth control. In addition, men enrolled on this study should understand the risks to any sexual partner of childbearing potential and should also practice an effective method of birth control. - All WOCBP MUST have a negative serum or urine pregnancy test within 4 weeks prior to the start of study drug administration.

Exclusion criteria

* Use of the following concomitant medications within 14 days of starting protocol therapy is prohibited: Cisapride, dofetilide, ergot derivatives, levomethadyl, lovastatin, midazolam, pimozide, quinidine, simvastatin, or triazolam. * Patients who are taking alprazolam (Xanax) are excluded from the trial. * Patients must not have an active infection requiring the use of intravenous antibiotics. The use of oral antibiotics is allowed. * Hypersensitivity to itraconazole, any component of the formulation, or to other azoles. * Patients with uncontrolled CNS metastasis are excluded. If patients have CNS metastasis they must have completed brain radiation at least 2 weeks prior to registration and must be off steroids for CNS metastasis. * Known preexisting congestive heart failure or left ventricular dysfunction. Patients with risk factors (ex. uncontrolled hypertension with BP \>160/90) for cardiac dysfunction but no preexisting diagnosis of congestive heart failure or left ventricular dysfunction will have a screening EKG prior to enrollment. Subsequently, those patients with an abnormal EKG, as judged by the treating physician, will be excluded from the study.

Design outcomes

Primary

MeasureTime frameDescription
Pharmacokinetics (PK) of Oral Itraconazolepre-dose at Weeks 2 and 4To determine the pharmacokinetics (PK) of oral itraconazole in patients with MBC by measuring mean trough plasma levels at steady state at weeks 2 and 4.

Secondary

MeasureTime frameDescription
Number of Patients With Adverse Events Grade 3 or 4 That Are Related to Study Treatmentup to 100 monthsNumber of patients with Adverse Events grade 3 or 4 that are related to study treatment. This will look into the safety of the study drug.
Time to Progression.up to 100 monthsThis is calculated as time till progression from treatment start until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months. If a patient did not progress, they were censored at the last evaluation visit. The median time till progression is calculated with its 95% confidence interval.

Countries

United States

Participant flow

Participants by arm

ArmCount
Itraconazole
oral itraconazole 200mg a day until disease progression or unacceptable toxicities.
13
Total13

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDisease progression, refractory1
Overall StudyDisease progression, relapse11
Overall StudyPhysician Decision1

Baseline characteristics

CharacteristicItraconazole
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
6 Participants
Age, Categorical
Between 18 and 65 years
7 Participants
Age, Continuous59.8 Years
STANDARD_DEVIATION 14.3
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
13 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 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
12 Participants
Sex: Female, Male
Female
13 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
13 / 13
serious
Total, serious adverse events
3 / 13

Outcome results

Primary

Pharmacokinetics (PK) of Oral Itraconazole

To determine the pharmacokinetics (PK) of oral itraconazole in patients with MBC by measuring mean trough plasma levels at steady state at weeks 2 and 4.

Time frame: pre-dose at Weeks 2 and 4

Population: All patients with results available.

ArmMeasureGroupValue (MEAN)Dispersion
ItraconazolePharmacokinetics (PK) of Oral ItraconazoleWeek 2 Intraconazole Concentration230.7 ng/mLStandard Deviation 216.8
ItraconazolePharmacokinetics (PK) of Oral ItraconazoleWeek 4 Intraconazole Concentration305.8 ng/mLStandard Deviation 334.8
ItraconazolePharmacokinetics (PK) of Oral ItraconazoleWeek 2 6-OH Itraconazole Concentration454.8 ng/mLStandard Deviation 429.3
ItraconazolePharmacokinetics (PK) of Oral ItraconazoleWeek 4 6-OH Itraconazole Concentration501.6 ng/mLStandard Deviation 502.6
Secondary

Number of Patients With Adverse Events Grade 3 or 4 That Are Related to Study Treatment

Number of patients with Adverse Events grade 3 or 4 that are related to study treatment. This will look into the safety of the study drug.

Time frame: up to 100 months

Population: All patients in the study.

ArmMeasureValue (NUMBER)
ItraconazoleNumber of Patients With Adverse Events Grade 3 or 4 That Are Related to Study Treatment2 Participants
Secondary

Time to Progression.

This is calculated as time till progression from treatment start until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months. If a patient did not progress, they were censored at the last evaluation visit. The median time till progression is calculated with its 95% confidence interval.

Time frame: up to 100 months

Population: All patients in the study.

ArmMeasureValue (MEDIAN)
ItraconazoleTime to Progression.1.54 Months

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026