- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00627978
Phase II Study of Ixabepilone in Metastatic Breast Cancer and Its Effects on the Ultrastructure of Neurons
Phase II Study of Ixabepilone in Patients With Metastatic Breast Cancer and a Prospective Evaluation of Its Effects on the Ultrastructure of Neurons
Primary Objectives
- Assess ultrastructure changes in dermal myelinated nerves of patients who receive ixabepilone chemotherapy
- Detailed characterization of peripheral neuropathy in patients who receive ixabepilone
Secondary Objectives
- Clinical benefit rate
- Time to progression ( TTP)
- Toxicity
Exploratory studies:
- Relation of MDR 1 and TRKA polymorphisms to evolution of ultrastructural neurologic changes observed in neurons.
- Relation of NGF, IL8, and IL10 to the development of clinical symptoms and ultrastructural changes in neurons.
Study Overview
Detailed Description
Eligible patient population:
- Stage 4 breast cancer
- Resolution from toxicity of prior therapy to ≤ CTC grade 1 ( except alopecia)
- No limit on prior number of therapies to treat cancer
- Adequate organ function
- Life expectancy greater than 3 months
Treatment: ixabepilone 40 mg/m2 Q3w over 3 hours
Evaluation on Study:
I. Efficacy evaluation:
- Baseline CT chest, abdomen and pelvis and bone scan within 4 weeks of starting therapy
- Evaluation of disease every 2 cycles of chemotherapy
- Ongoing toxicity evaluation using NCI CTC 3.
II. Neurological evaluation:
- Detailed neurologic exam using Neuropathy Assessment Instrument (represents a standard neurological exam)
- Serum NGF, IL 8,10, prior to starting therapy and prior to each cycle of ixabepilone
- DNA for assessment of TRK A and MDR1 polymorphisms
- Punch biopsy of skin prior to starting therapy and after every 2 cycles. Laboratory evaluation of peripheral nerve biopsies will be conducted at Rockefeller University under the direction of Dr. Carlson in Dr. Strickland's Lab.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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New York
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New York, New York, United States, 10021
- Weill Medical College of Cornell University
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria
- Ability to understand and the willingness to sign a written informed consent document.
- Histologic or cytologic diagnosis of adenocarcinoma originating in the breast.
- Evidence that the cancer is metastatic or locally advanced and not curable by local measures (i.e., surgery, radiation).
NOTE: There is no limit on number of prior chemotherapy regimens received.
- Karnofsky performance status (KPS) score of 70 - 100; (Appendix 1).
- Life expectancy of at least 12 weeks.
- Adequate recovery of drug related toxicities from prior systemic therapy (recovery to < = Grade 1 except for Grade 2 fatigue and alopecia).
- Adequate recovery from recent surgery and radiation therapy. At least one week must have elapsed from the time of a minor surgery and/or focal/palliative radiation therapy; at least 3 weeks for major surgery and other radiation therapy.
- Women or Men, age > = 18 years.
Patients must have normal organ and marrow function as defined below:
- Hematologic function with absolute neutrophils ≥ 1,500/mm3 and/or platelets > 125,000/mm3
- Hepatic function with serum bilirubin less than 1.5 times the upper institutional limits of normal, ALT ≤ 2.5 times the upper institutional limits of normal (≤ 5 times the upper institutional limits of normal if documented hepatic metastases are present)
- Renal function with serum creatinine ≤ 1.5 times the upper limit of normal
- Women of childbearing potential (WOCBP) and men with partners who are of childbearing potential must be using an adequate method of contraception to avoid pregnancy throughout the study and for up to 4 weeks after the study in such a manner that the risk of pregnancy is minimized.
WOCBP include any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation or bilateral oophorectomy) or is not postmenopausal (defined as amenorrhea > = 12 consecutive months; or women on hormone replacement therapy (HRT) with documented serum follicle stimulating hormone (FSH) level > 35 mIU/mL). Even women who are using oral, implanted or injectable contraceptive hormones or mechanical products such as an intrauterine device or barrier methods (diaphragm, condoms, spermicides) to prevent pregnancy or practicing abstinence or where partner is sterile (e.g., vasectomy), should be considered to be of child bearing potential.
- WOCBP must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) within 72 hours prior to the start of study medication.
Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
Exclusion Criteria
- Patients with known and active brain and/or leptomeningeal metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
- CTC Grade 2 or greater neuropathy (motor or sensory) at study entry.
- Prior treatment with ixabepilone.
- Serious intercurrent infections, or nonmalignant medical illnesses that are uncontrolled or whose control may be jeopardized by the complications of this therapy, 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.
- Known history of HIV infection.
- 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 concurrent chemotherapy, hormonal therapy, immunotherapy regimens or radiation therapy, standard or investigational.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to ixabepilone.
- Known prior severe hypersensitivity reactions to agents containing CremophorEL.
- Patients may not be receiving any prohibited therapies and/or medications.
- Pregnant and lactating women are excluded from the study because the risks to an unborn fetus or potential risks in nursing infants are unknown.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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No Intervention: Control
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Experimental: Ixabepilone
Participants are treated with Ixabepilone.
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ixabepilone 40 mg/m2 Q3w over 3 hours
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Axons With Abnormal Morphology
Time Frame: Baseline and Over 7 cycles of treatment, approximately 21 weeks
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Digital photographs for morphometry were captured at a magnification of 8000-16,000x and the photos were uploaded onto an imaging platform of transmission electron microscope (iTEM) (Olympus, Mu¨nster, Germany).
The figures were enlarged by 50%, and an individual linear array was used to measure the axonal diameter (cross-sectional area) and the number of unmyelinated axons per Remak Schwann cell was enumerated according to the established methodology.
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Baseline and Over 7 cycles of treatment, approximately 21 weeks
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Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- 0707009284
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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