Paclitaxel Therapeutic Drug Monitoring in Cancer Patients

The goals of this prospective, observational cohort study are to determine the feasibility of implementing paclitaxel therapeutic drug monitoring for cancer patients and explore the relationship between paclitaxel drug exposure and the development of neuropathic symptoms.

This trial studies if paclitaxel can be consistently measured in the blood of patients with solid tumors undergoing paclitaxel treatment. Drugs used in chemotherapy, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Nerve damage is one of the most common and severe side effects of paclitaxel. The ability to consistently measure paclitaxel in the blood may allow doctors to control the dose of paclitaxel, so that enough chemotherapy is given to kill the cancer, but the side effect of nerve damage is reduced.

Primary Objective:

• Determine the feasibility of monitoring paclitaxel serum drug levels in patients with a solid tumor (e.g. lung, breast, and gynecologic cancers) for which Paclitaxel is the standard of care.

Secondary Objectives:

* Compare Paclitaxel serum drug levels among patients with differing degrees of chemotherapy-induced peripheral neuropathy at the end of Paclitaxel treatment.
* Compare mitochondrial function within circulating peripheral blood mononuclear cells among patients with differing degrees of chemotherapy-induced peripheral neuropathy at the end of Paclitaxel treatment.
* Compare the ability of pulsed electromagnetic field to modulate immune cells of individuals experiencing differing degrees of chemotherapy-induced peripheral neuropathy at the end of Paclitaxel treatment.

Eligibility Criteria:
Inclusion Criteria:

* Male or female sex
* Age ≥ 18 years
* Individuals receiving treatment at the Wake Forest Comprehensive Cancer Center who are anticipated to receive paclitaxel for curative or palliative intent, with or without surgery and/or radiation (i.e. neoadjuvant, adjuvant, or in the setting of recurrent or metastatic disease) as per decision with their medical oncologist for the following malignancies and dosing regimens:
* Invasive breast cancer (any HER2 and ER/PR status)
* Patients considered for curative or palliative chemotherapy with paclitaxel 80-175 mg/m2 with or without doxorubicin, cyclophosphamide, carboplatin, trastuzumab, bevacizumab, or pertuzumab

Cervical cancer • Patients considered for curative or palliative chemotherapy with paclitaxel 135-175 mg/m2 with or without cisplatin, carboplatin, topotecan, or bevacizumab

Non-small cell lung cancer

• Patients considered for curative or palliative chemotherapy with paclitaxel 45-200 mg/m2 with or without carboplatin, cisplatin, bevacizumab, atezolizumab, or pembrolizumab

Ovarian cancer • Patients considered for curative or palliative chemotherapy with paclitaxel 60-175 mg/m2 with or without carboplatin, cisplatin, ifosfamide, gemcitabine, pazopanib, or bevacizumab

Uterine neoplasms

• Patients considered for curative or palliative chemotherapy with paclitaxel 135-175 mg/m2 with or without carboplatin, cisplatin, doxorubicin, ifosfamide, bevacizumab, or trastuzumab

Vulvar cancer (squamous cell carcinoma)

* Patients considered for curative or palliative chemotherapy with paclitaxel 60-175 mg/m2 with or without cisplatin, carboplatin, or bevacizumab
* Ability to understand and the willingness to sign an IRB-approved informed consent document (either directly or via a legally authorized representative)
* Patients with prior radiation treatment or surgery will not be disqualified from enrollment into the study, unless the aforementioned interventions resulted in peripheral neuropathy as a complication

Exclusion Criteria:

* Prior treatment with PTX, for any duration or indication
* Prior treatment with neurotoxic chemotherapy including any taxane, vinca alkaloid, platinum-containing agent, bortezomib, or thalidomide that has resulted in clinical symptoms of persistent, CTCAE grade II or higher peripheral neuropathy
* Concurrent enrollment in a clinical study of a neuroprotective intervention at the time of study initiation
* Any contraindication to Paclitaxel (e.g. history of allergic reaction to paclitaxel or Kolliphor EL)
* Current signs or symptoms of peripheral neuropathy at the time of enrollment, e.g. due to diabetes, HIV, or other conditions
* Known personal or family history of hereditary peripheral neuropathy (e.g. Charcot-Marie-Tooth disease)