A method of treating a subject with cancer includes the step of co-administering to the subject over three to five weeks, a taxane in an amount of between about 243 .mu.mol/m2 to 315 .mu.mol/m2 (e.g., equivalent to paclitaxel in about 210-270 mg/m2); and a bis(thiohydrazide amide) in an amount between about 1473 .mu.mol/m2 and about 1722 .mu.mol/m2 (e.g., Compound (1) in about 590-690 mg/m2). The bis(thiohydrazide amide) is represented by Structural Formula (I), Y is a covalent bond or an optionally substituted straight chained hydrocarbyl group, or, Y, taken together with both >C=Z groups to which it is bonded, is an optionally substituted aromatic group. R.sub.1-R.sub.4 are independently --H, an optionally substituted aliphatic group, an optionally substituted aryl group, or R.sub.1 and R.sub.3 taken together with the carbon and nitrogen atoms to which they are bonded, and/or R.sub.2 and R.sub.4 taken together with the carbon and nitrogen atoms to which they are bonded, form a non-aromatic heterocyclic ring optionally fused to an aromatic ring. R.sub.7-R.sub.8 are independently --H, an optionally substituted aliphatic group, or an optionally substituted aryl group. Z is O or S. ##STR00001##