CREATE TABLE table_1661124_1 (approved_treatment_s_ VARCHAR, antibody VARCHAR)

What are the approved treatments when the antibody is bevacizumab?
SELECT approved_treatment_s_ FROM table_1661124_1 WHERE antibody = "Bevacizumab"
SELECT "approved_treatment_s_" FROM "table_1661124_1" WHERE "Bevacizumab" = "antibody"