It has been reported that immunologic function is deteriorated in head
and neck cancer patients by primary therapies such as surgery, irradi
ation and chemotherapy or tumor itself. As previously described by us,
immunologic dysfunction in such patients may be recovered by treatmen
t with BRMs. In the present study, we investigated the effects of BRMs
on survival of patients who had primarily been treated in our clinic.
Fifty-one patients (23 patients; Stage I or Stage II, 28 patients; St
age III or Stage IV) were treated with BRMs (BRM group), and 49 patien
ts (22 patients; Stage I or Stage II, 27 patients; Stage III or Stage
IV) were employed as controls (Control group). The results obtained we
re as follows: (1) In patients of all Stages, the survival period was
significantly (p<0.05) longer in BRM group than in Control group; (2)
The survival periods of patients of Stage I or Stage II were not diffe
rent between the groups; and (3) The survival period of BRM group was
significantly (p<0.05) longer than that of Control group in patients o
f Stage III or Stage IV. There were observed more patients in BRM grou
p who survived for a prolonged period. These results suggest that BRMs
may be useful for recovering immunologic function in head and neck ca
ncer patients particularly of Stage III or Stage TV who usually receiv
e multimodality therapy.