- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01009437
Ritonavir and Its Effects on Biomarkers in Women Undergoing Surgery for Newly Diagnosed Breast Cancer
A Phase I/II Trial of Short Course Pre-Operative Ritonavir To Determine Akt Inhibition in Breast Cancer
RATIONALE: Ritonavir may stop the growth of tumor cells by blocking some of the enzymes needed for cancer cell growth. Studying samples of blood and tissue from patients with breast cancer in the laboratory may help doctors learn more about the effects of ritonavir on biomarkers involved in breast cancer growth.
PURPOSE: This phase I/II trial is studying the best dose of ritonavir and its effects on biomarkers in women undergoing surgery for newly diagnosed breast cancer.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
OBJECTIVES:
- Determine the effects of ritonavir on Akt activity, UPR, Ki67 LI, and ROS in a triple-negative breast cancer model.
- Determine the maximum tolerated dose of ritonavir in women with newly diagnosed breast cancer. (Phase I - enrollment complete)
OUTLINE: This is a multicenter, phase I dose-escalation study followed by a phase II study. *Note: This trial never moved forward to Phase ll.
Control Group - Five patients with estrogen receptor positive (ER+) and human epidermal growth factor 2 negative (HER2-) breast cancer are enrolled before the start of phase I recruitment.
Phase I Group - Twelve breast cancer patients with either 1)ER+, HER2-, or 2)ER+, HER2+, or 3) ER-, HER2+, or 4) ER-, PR+, HER2-, or 5) ER-, PR-, HER2- will be enrolled for dose escalation study.
Phase II Group - Nineteen ER+, HER2- patients will be enrolled for ritonavir pharmacokinetic study after maximum tolerated dose (MTD) is established.
- Control: Patients do not receive ritonavir.
- Phases I and II: Patients receive oral ritonavir twice daily for 5 days in the absence of disease progression or unacceptable toxicity. Patients then undergo surgery as deemed appropriate by the surgeon and based on patient preference (mastectomy or lumpectomy with sentinel node procedure and/or axillary node dissection).
All patients undergo blood and tissue sample collection periodically for biomarker research studies. Samples from patients enrolled in the control group are compared with the samples from patients enrolled in phase I and II.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Minnesota
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Minneapolis, Minnesota, United States, 55455
- Masonic Cancer Center, University of Minnesota
-
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19107
- The Kimmel Cancer Center at Jefferson University
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria:
Newly diagnosed biopsy proven breast cancer for which a lumpectomy or mastectomy is planned.
- Control Selection
ER+, HER2-: estrogen receptor positive (ER+) and human epidermal growth factor receptor 2 negative (HER2 -) as defined according to institutional standards.
- Phase I Selection
- ER+, HER2-
- ER+, HER2+
- ER-, HER2+
- ER-, PR+, HER2-
ER-, PR-, HER2-
- Phase II Selection
- ER+HER2-: as defined for controls Menstrual status will be noted as either pre- or postmenopausal. For the purpose of this study, postmenopausal is defined as no menstrual period for 12 months or longer or bilateral oophorectomy
- Sufficient tumor tissue from the diagnostic core biopsy, either as a block or a minimum of 5 slides
- Tumor must be greater than 1 centimeter as measured by clinical exam, mammogram, ultrasound or MRI. - No prior treatment for breast cancer in the affected breast.
- Karnofsky performance status >70%
- No prior treatment for breast cancer in the affected breast
- Adequate organ function for receiving study drug within 14 days 1st dose of study drug
- Women of childbearing potential are required to use an effective method of contraception
- Voluntary written consent
Exclusion criteria:
- Pregnant or lactating.
- Known positive HIV status or on medications for HIV
- Diagnosis of diabetes due to potential problems with insulin resistance and hyperglycemia
- Any pre-existing gastrointestinal complaints including nausea, abdominal pain and/or diarrhea
- Known hypersensitivity to ritonavir or any of the tablet ingredients
- Co-administration of ritonavir is contraindicated with any of the drugs - Contraindicated Drugs because competition for primarily CYP3A by ritonavir could result in inhibition of the metabolism of these drugs and create the potential for serious and/or life-threatening reactions such as cardiac arrhythmias, prolonged or increased sedation, and respiratory depression. Voriconazole is an exception in that co-administration of ritonavir and voriconazole results in a significant decrease in plasma concentrations of voriconazole. If the patient cannot discontinue a contraindicated drug, she is not eligible for the trial.
- Incompatible Drugs
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NON_RANDOMIZED
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: Control Arm - No Ritonavir
Five ER+, HER2- breast cancer patients meeting all study eligibility will be enrolled prior to the start of phase I recruitment to act as controls (no ritonavir will be given-will receive therapeutic conventional surgery) to confirm that anesthesia does not affect EET levels.
Core biopsies, surgical tumor/normal tissue and pre- and post- surgery blood samples will be collected for comparison with the treatment group.
|
Tissue collection is from all patients, including the control, phase I and phase II patients.
Other Names:
|
EXPERIMENTAL: Ritonavir - Escalating Doses (I)
Standard phase I dose escalation (with therapeutic conventional surgery) will be used with 3 levels of ritonavir given - 200 mg bid, 400 mg bid, and 600 mg bid for the following groups:
|
Tissue collection is from all patients, including the control, phase I and phase II patients.
Other Names:
Phase I: Dose escalation will be used with 3 levels of ritonavir given - 200 mg twice a day (bid), 400 mg bid, and 600 mg bid. Phase II: Dose will be maximum tolerated dose from Phase I.
Other Names:
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EXPERIMENTAL: Ritonavir - Maximum Tolerated Dose (II)
Phase II: Once the maximum tolerated dose (MTD) of ritonavir is established, 19 ER+, HER2- patients will be enrolled at MTD during the phase II component along with therapeutic conventional surgery.
|
Tissue collection is from all patients, including the control, phase I and phase II patients.
Other Names:
Phase I: Dose escalation will be used with 3 levels of ritonavir given - 200 mg twice a day (bid), 400 mg bid, and 600 mg bid. Phase II: Dose will be maximum tolerated dose from Phase I.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Inhibition of breast cancer by targeting Hsp90-Akt pathway
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Activation of apoptosis markers
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Modulation of autophagy markers
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Alteration of plasma levels of eicosanoids
Time Frame: Pre Treatment and 3 Hours Post Treatment
|
Pre Treatment and 3 Hours Post Treatment
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Induction of Hsp70 in peripheral blood mononuclear cells
Time Frame: Pre Treatment and 3 Hours Post Treatment
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Pre Treatment and 3 Hours Post Treatment
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Reduction of ERα in ERα+ tumors
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Changes in TNF-α and IL-6 levels as well as reduction in intratumoral nuclear NF-kB and phospho-Stat3
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Alteration of urine eicosanoid levels
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Alteration of plasma and urine eicosanoid levels resulting from tumor resection.
Time Frame: Pre and Post Treatment
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Pre and Post Treatment
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Induction of the unfolded protein response (UPR) assayed by grp78 or related markers (phospho-PERK, ATF-4, and CHOP)
Time Frame: pre- and post-surgery
|
pre- and post-surgery
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inhibition of tumor growth markers (Ki67 LI, Hsp90, phosphorylated AKT)
Time Frame: pre- and post-surgery
|
pre- and post-surgery
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: David A. Potter, M.D., Ph.D., Masonic Cancer Center, University of Minnesota
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
- stage IV breast cancer
- stage IIIA breast cancer
- stage IIIB breast cancer
- stage II breast cancer
- stage IIIC breast cancer
- HER2-positive breast cancer
- stage I breast cancer
- estrogen receptor-positive breast cancer
- triple-negative breast cancer
- ductal breast carcinoma in situ
- HER2-negative breast cancer
Additional Relevant MeSH Terms
- Skin Diseases
- Neoplasms
- Neoplasms by Site
- Breast Diseases
- Breast Neoplasms
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Antiviral Agents
- Enzyme Inhibitors
- Anti-HIV Agents
- Anti-Retroviral Agents
- Protease Inhibitors
- Cytochrome P-450 CYP3A Inhibitors
- Cytochrome P-450 Enzyme Inhibitors
- HIV Protease Inhibitors
- Viral Protease Inhibitors
- Ritonavir
Other Study ID Numbers
- 2008NTLS083
- UMN-0809M45461 (OTHER: IRB, University of Minnesota)
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