Combination chemotherapy regimens using multiple agents have been reported to produce long term survival in patients with
non-Hodgkin's lymphoma (NHL). However, the adverse effects of those regimens, particularly pulmonary complications, have resulted in fatalities. We measured
P-III-P and type IV collagen-7S level in the serum and BALF of 23 previously untreated NHL patients who underwent
COP-BLAM III chemotherapy in which a high dose of
bleomycin (BLM) was used, and studied the relationship between those parameters and the pulmonary functions in those patients. The parameters and pulmonary function were measured before the first course and after the completion of the fourth course of
chemotherapy. As for pulmonary function,
chemotherapy produced an increment of %DLCO value but no change in PaO2, %VC, and %FEV1.0. While serum
P-III-P levels remained unchanged,
P-III-P levels in BALF slightly decreased after the
chemotherapy. Type IV collagen-7S levels both in serum and BALF showed no change after the
chemotherapy. Serum
P-III-P levels after the
chemotherapy were significantly correlated with both total cell counts and lymphocyte counts in the BALF. But there was no correlation between serum
P-III-P levels and %DLCO. Mild and early-Stage
fibrosis was observed in the lungs of the patients who were treated with
COP-BLAM III. Pulmonary adverse effects are not likely to be associated with the total administered dose of BLM, but are associated with individual susceptibility to BLM toxicity. Our results suggest that the
chemotherapy should be discontinued or the dose of BLM should be reduced if the
P-III-P level in BALF increases.