Glioma Clinical Trial
Official title:
tGLI1 as a Therapeutic Target in Brain Metastases: A Window of Opportunity Study in Breast Cancer Brain Metastases and Primary Gliomas
Verified date | April 2024 |
Source | Wake Forest University Health Sciences |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This trial studies the side effects and how well ketoconazole works before surgery in treating patients with glioma that has come back or breast cancer that has spread to the brain. Ketoconazole is an antifungal drug that may be able to block a protein, tGLI1 and may help to treat brain tumors.
Status | Recruiting |
Enrollment | 19 |
Est. completion date | September 2024 |
Est. primary completion date | July 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Subjects must have a history of: - Histologically confirmed primary breast cancer including primary invasive and metastatic breast cancers with imaging findings consistent with brain metastasis. In the event that a patient presents with an initial diagnosis of metastatic breast cancer with imaging findings of a new brain metastases and unequivocal imaging findings of a primary breast cancer, consideration for study enrollment requires approval from the study chair (primary cohort) OR - Histologically confirmed primary glioma including astrocytoma or oligodendroglioma of any World Health Organization grade with imaging findings consistent with recurrent or progressive disease (exploratory cohort). Patients with ependymoma will not be included. - Subjects must be undergoing surgical resection for clinical purposes with anticipated resection of at least 300 mg of tissue. - Patients with any prior number of radiation (including brain radiation), chemotherapy, or surgical interventions will be eligible for this protocol. - The effects of ketoconazole on the developing human fetus are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. - Ability to understand and the willingness to sign an Institutional Review Board (IRB)-approved informed consent document (either directly or via a legally authorized representative). Exclusion Criteria: - Subjects with contraindication to ketoconazole including: - Prior allergic reaction or intolerance of ketoconazole - Known active hepatitis - QTc prolongation (based on electrocardiography [EKG] obtained within 21 days of enrollment, with a threshold of >450 ms in males and >470 ms in female) - Known liver cirrhosis will be excluded from enrollment - Positive serum pregnancy test within 21 days of enrollment - Subjects currently taking medications that are included in the contraindicated concurrent medications section of the Food and Drug Administration (FDA) approved indications for ketoconazole will be required to complete a seven day wash out period prior to consideration for enrollment. - Subjects for whom collection of blood, or tissue samples is unsafe or clinically inadvisable. - Pregnant women are excluded from this study because ketoconazole is a Class B agent with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with ketoconazole, breastfeeding should be discontinued if the mother is treated with ketoconazole. |
Country | Name | City | State |
---|---|---|---|
United States | Wake Forest University Health Sciences | Winston-Salem | North Carolina |
Lead Sponsor | Collaborator |
---|---|
Wake Forest University Health Sciences | National Cancer Institute (NCI) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Serum ketoconazole concentrations in Cerebrospinal Fluid (CSF) | Measured using mass spectroscopy. The analysis will be the same as that for the analysis of primary objective. If the sample size is too small, the nonparametric approach will be considered as the primary analysis. | Up to 30 days after surgery | |
Other | Serum ketoconazole concentrations in enhancing brain tissue | Measured using mass spectroscopy. The analysis will be the same as that for the analysis of primary objective. If the sample size is too small, the nonparametric approach will be considered as the primary analysis. | Up to 30 days after surgery | |
Other | Serum ketoconzcole concentrations in unenhancing brain tissue | Measured using mass spectroscopy. The analysis will be the same as that for the analysis of primary objective. If the sample size is too small, the nonparametric approach will be considered as the primary analysis. | Up to 30 days after surgery | |
Other | Changes in tGLI1 signaling pathway | Will be calculated and compared between treatment groups. Ideally analysis of covariance should be done. However, due to the small sample size, ANOVA as described for the primary analysis approach or the 2-sample t test will be used. If needed, non-parametric approaches will be used instead. | Baseline up to 30 days after surgery | |
Other | Overall survival (OS) | The Kaplan-Meier method will be used to estimate OS probability and median time of survival along with the 95% confidence interval. | From the date of the starting ketoconazole to the date of death from any cause, assessed up to 30 days after ketoconazole treatment completion | |
Primary | tGLI1 activation signature 8 (t-GAS 8) | The primary outcome of this study is modulation of the tGLI1 pathway as assessed by the tGLI1 activation signature 8 (t-GAS 8) [29, 40]. t-GAS 8 consists of eight validated tGLI1 regulated genes (CD24, CD44, VEGF-A, VEGF-C, VEGFR2, TEM7, OCT-4. and heparanase) and is measured using qPCR in patients whose brain tissue expresses tGLI1 (by IHC). The distribution of the tGAS will be examined and transformed to approximate the conditional normality assumption if necessary. Analysis of variance (ANOVA) methods will be used to determine the effects of different factors of interest (e.g., treatment or tumor type) on the outcomes measured. | Up to 30 days after surgery | |
Secondary | tGLI1 pathway activation | tGLI1 pathway activation will be compared between treatment groups using ANOVA as described for the analysis of primary objective. | Up to 30 days after surgery | |
Secondary | Incidence of adverse events (AEs) | The safety of ketoconazole will be defined by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 4.0 criteria and determined by adverse event proportions. The adverse event proportions will be compared between treatment groups using chi-squared tests. If feasible, a logistic regression model will be used to detect whether the adverse event proportion is higher in the treatment group after adjusting for the tumor type. | Up to 30 days after surgery | |
Secondary | Blood brain penetrance of ketoconazole in serum relative to enhancing brain tissue | The analysis will be the same as that for the analysis of primary objective. | Up to 30 days after surgery |
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