An Early Phase Study of Abraxane Combined With Phenelzine Sulfate in Patients With Metastatic or Advanced Breast Cancer (Epi-PRIMED)
Metastatic Breast Cancer

About this trial
This is an interventional treatment trial for Metastatic Breast Cancer focused on measuring Nanoparticle albumin-bound paclitaxel (Abraxane), Phenelzine Sulfate, Cancer stem cells, epigenetics, LSD1
Eligibility Criteria
Inclusion Criteria:
- Patients who are 18 years or older;
- Fluent in written and spoken English and in a position to provide written informed consent to participate;
- A patient who is in a position to attend a 12-week treatment regimen and end of study visit;
- Metastatic Breast Cancer (MBC) or inoperable locally advanced breast cancer diagnosis based on pre-existing documented histopathology and medical imaging results, either Triple Negative Metastatic Breast Cancer (TNBC) or not;
- Women with metastatic breast cancer or inoperable locally advanced breast cancer who have not received any cytotoxic therapy in the last 3 weeks;
- Volunteers of child-bearing potential must have a negative serum pregnancy test (serum beta-human chorionic gonadotropin or ß-hCG) and have agreed to practice an effective, reliable contraceptive regimen for the duration of this clinical trial, such as an intrauterine device (IUD) or intrauterine system (IUS) with a failure rate of <1% stated on the product label or a male partner who is has been sterilised (vasectomy with documented azoospermia);
- ECOG Performance Status 0 or 1; and
- Adequate liver function as evidenced by bilirubin of <1.5 times upper limit of normal (ULN) and ALT/AST <2 times of ULN. However, AST and ALT of <5 times ULN if liver metastases are present.
Exclusion Criteria:
- A patient who has been diagnosed as having HER2-positive metastatic breast cancer;
- A concurrent condition that may limit the decision-making capabilities of the participant during the informed consent process;
- A previous positive diagnosis of Human Immunodeficiency Virus (HIV) and/or Hepatitis C Virus (HCV) and/or Hepatitis B Virus (HBV) infection;
- Women who are pregnant or lactating;
- Uncontrolled, untreated intra-cranial metastases. However, controlled intra-cranial metastases are allowed, i.e. stable patients with more than a month after the completion of whole brain radiotherapy and not currently on steroids or anticonvulsants;
- Current use of monoamine oxidase inhibitors (MOAI) or use of dextromethorphan
- Current use of CNS depressants such as selective serotonin re-uptake inhibitors as well as specific medication for pain management including pethidine, tramadol, dextromethorphan, fentanyl and/or methadone. This includes the concurrent use of any serotoninergic agents or buspirone hydrochloride during the week preceding phenelzine sulfate administration, the active study treatment phase and the washout period at the end of study. Serotoninergic drugs may include but are not limited to the following: dexfenfluramine, fluoxetine, fluvoxamine, paroxetine, sertraline, citalopram and venlafaxine;
- Previous use of nanoparticle albumin-bound paclitaxel;
- Known allergy to phenelzine sulfate or similar MOAI; and
- Known or suspected history of alcohol abuse;
Sites / Locations
- Canberra Region Cancer Centre
- Liverpool Cancer Therapy Centre
- Southern Medical Day Care Centre
Arms of the Study
Arm 1
Experimental
Cohort Group
There are five patient cohort groups. Each will receive a progressively higher starting dose of phenelzine sulfate, consecutively. Cohort A will start at 15mg/day and will be increased to 30mg/d by week 2 and further increased to 45mg/d for week 3, which will be maintained throughout the study. Cohort B will start at 45mg/d and will be held constant throughout the Study. Similarly, Cohort C, D & E will start at 60, 75 and 90mg/d, respectively, and will also be held on this dose throughout the study. The decision to escalate the dose for the next cohort will be made on the basis of the number of dose limiting toxicity (DLT) events observed during the first 8 weeks in the preceding cohort group. In addition, all cohort groups will receive a constant dose of Abraxane at 100mg/m2.