Summary of therapy results obtained with the cardiac-puncture
administration of 64Cu-ATSM in hamsters bearing the GW39
carcinoma. Endpoint was 135 days or a tumor burden of 10 g,
whichever came first. (A) Therapy of 7-day-old GW39
tumors in hamsters. Single administration of saline and hydralazine
(♦, n = 10), 10 mCi of 64Cu-ATSM
without hydralazine (■, n = 10), or 10
mCi of 64Cu-ATSM with hydralazine pretreatment
(▴, n = 9). (B) Therapy
of 7-day-old GW39 tumors in hamsters by using dose fractionation.
Administration of saline, (♦, n = 10), 3 ×
4 mCi of 64Cu-ATSM at 72-h intervals without hydralazine
(■, n = 13), or 3 × 4 mCi of
64Cu-ATSM at 72-h intervals with hydralazine pretreatment
(▴, n = 13). (C) Therapy
of 7-day-old GW39 tumors in hamsters. Comparison of 10 (▴,
n = 10), 8 (■, n =
11), and 6 (♦, n = 12) mCi. (D)
Therapy of 15-day-old GW39 tumors in hamsters. Comparison of 4 (♦,
n = 7), 6 (●, n =
9), 7 (⋄, n = 9), 8 (▵,
n = 9), and 10 (▴, n
= 10) mCi.