TLR8 Agonist VTX-2337 and Pegylated Liposomal Doxorubicin Hydrochloride or Paclitaxel in Treating Patients With Recurrent or Persistent Ovarian Epithelial, Fallopian Tube, or Peritoneal Cavity Cancer

This phase I trial is studying the side effects and best dose of TLR8 agonist VTX-2337 and pegylated liposomal doxorubicin hydrochloride in treating patients with recurrent or persistent ovarian epithelial, fallopian tube, or peritoneal cavity cancer. Biological therapies, such as TLR8 agonist VTX-2337, may stimulate the immune system in different ways and stop tumor cells from growing. Drugs used in chemotherapy, such as pegylated liposomal doxorubicin hydrochloride and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving TLR8 agonist VTX-2337 together with pegylated liposomal doxorubicin hydrochloride or paclitaxel may kill more tumor cells.