Twenty-one patients with squamous cell carcinoma of oral cavity and/or cervical lymph node and four patients with soft tissue sarcomas were given intralesional (2-4 mg/m2) and intralymph node (2-4 mg/m2) C. parvum injections followed by 5 intravenous (2-4 mg/m2) C. parvum treatments and conventional therapies. Seven patients with Stage III ovarian carcinomas were given intraperitoneal (2-4 mg/m2) C. parvum injections followed by conventional therapies. The local and systemic effects of the C. parvum treatments were described and the anti-tumor effects were evaluated in this series of patients.