Recurrent Metastatic Squamous Neck Cancer With Occult Primary
The prognosis for most treated cancer patients with progressing, recurring, or relapsing disease is poor, regardless of cell type or stage. Deciding on further treatment depends on many factors, including the specific cancer, prior treatment, site of recurrence, as well as individual patient considerations. Treatments that are under clinical evaluation are appropriate and should be considered when possible.
The reported side effects of Cancell/Cantron/Protocel include temporary, moderate fatigue during the first few weeks of treatment and nausea. Reviewed in [1,2] One patient who exceeded the manufacturer's dose recommendations experienced diarrhea for a few hours but was reported to be fine the next day. Reviewed in 
Questionable methods of cancer management: Cancell/Entelev. CA Cancer J Clin 43 (1): 57-62, 1993 Jan-Feb.
Cancell Alternative Cancer...
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with recurrent metastatic squamous neck cancer with occult primary. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.
General information about clinical trials is also available from the NCI Web site.