In this follow-up report of the treatment of primary breast cancer wit
h adjuvant immunotherapy, a total of 95 patients were studied: 46 pati
ents with stage I breast cancer and 49 patients with stage II breast c
ancer. All patients underwent standard surgical treatment and received
immunotherapy as adjuvant treatment. Patients received a primary seri
es of eight doses (1 mL of tumor-associated antigen preparation given
as 0.2 mL intradermally and 0.8 mL subcutaneously) given over 8 weeks,
and then booster injections every 3 months for at least 2 years. The
5-year survival with adjuvant immunotherapy was 83% for those with neg
ative axillary nodes and 53% for those with positive nodes; this compa
res favorably with national 5-year survival statistics from two other
studies (node-negative, 72% and 83%; node-positive, 51% and 59%). Base
d on these data, the addition of immunotherapy to other adjuvant thera
pies in randomized prospective trials seems both reasonable and justif
ied.