A Study of DKN-01 as a Monotherapy or in Combination With Paclitaxel in Patients With Recurrent Epithelial Endometrial or Epithelial Ovarian Cancer or Carcinosarcoma

This study employs a "basket" design to concurrently investigate DKN-01 as monotherapy and in combination with paclitaxel in patients with recurrent epithelial endometrial cancer (EEC), epithelial ovarian cancer (EOC), or carcinosarcoma (malignant mixed Mullerian tumor \[MMMT\]. Thus, 6 distinct patient groups are being independently investigated: 1. 300mg DKN-01 monotherapy in recurrent EEC (Group 1) 2. 300mg DKN-01+paclitaxel in recurrent EEC (Group 2) 3. 300mg DKN-01 monotherapy in recurrent EOC (Group 3) 4. 300mg DKN-01+paclitaxel in recurrent EOC (Group 4) 5. 600mg DKN-01 monotherapy in recurrent carcinosarcoma (MMMT) (Group 5) 6. 600mg DKN-01+paclitaxel in recurrent carcinosarcoma (MMMT) (Group 6)