Extracellular matrix adjuvant and methods for prevention and/or inhibition of ovarian tumors and ovarian cancer

Compositions suitable for use as ovarian cancer and/or tumor adjuvants in the preparation of ovarian cancer vaccines, particularly those vaccines useful in the treatment of human ovarian cancer, are provided. The ovarian cancer adjuvants described are comprised of an extracellular matrix material, such as small intestinal submucosal (SIS) tissue. The preparations may take the form of sheets, gels, liquids (injectable), tracer, or other solid or semi-solid preparation. Also disclosed are ovarian tumor inhibiting compositions that include extracellular matrix tissue adjuvants.