Treatment With Nab-paclitaxel in Cutaneous SCC

This is an investigator initiated phase II study to assess the efficacy of a chemotherapy called nab-paclitaxel as first line cytotoxic chemotherapy in subjects with unresectable locally advanced or metastatic cutaneous squamous cell carcinoma (SCC). All subjects receive the treatment by vein weekly and receive the same dose of the treatment. The risk of developing cutaneous SCC is approximately 10% in a lifetime. The vast majority are treated surgically and do not recur. However a small percentage become unresectable over time or metastasize distantly in the body. Unresectable and metastatic cutaneous SCC has a poor prognosis and oncologists often choose a whole body therapy without the benefit of prospective efficacy data. Very little prospective investigation into the efficacy of specific chemotherapy regimens as a function of line of therapy has been performed in this patient population. Nab-paclitaxel is type of chemotherapy that has demonstrated activity in other types of cancer such as lung and head and neck cancers. The primary objective of this study is to determine the response rate (percentage of subjects with tumor shrinkage) to nab-paclitaxel treatment in subjects with cutaneous SCC who have not received cytotoxic chemotherapy in the unresectable or the metastatic settings.. Secondary objectives are the progression free survival (time until tumor starts to grow), safety, assessment of the percentage of subjects whose tumor expresses a protein called SPARC, and correlating the expression of SPARC with response to treatment. To determine if the tumor expresses SPARC part of a prior standard biopsy such as that performed to establish the diagnosis of SCC will be used. SPARC is a protein that is overexpressed in a range of different cancer types and may alter the environment around the tumor possibly in a way that may make the SCC more responsive to treatment with nab-paclitaxel.