AZD1775 in Women With Recurrent or Persistent Uterine Serous Carcinoma or Uterine Carcinosarcoma (NCT03668340)

Usually NOT eligible if any of the following apply:

• Exclusion Criteria:
• Participants who have had chemotherapy, radiotherapy, or investigational therapy within 3 weeks (6 weeks for nitrosoureas or mitomycin C) prior to first dose of AZD1775, or those who have not recovered to Grade 1 from adverse events (excluding alopecia or anorexia) due to agents administered more than 3 weeks earlier. Participants may not have had hormonal therapy within 2 weeks of the first dose of AZD1775.
• Participants who are receiving any other investigational agents.
• Participants who have MSI-high or MMR-deficient tumors will not be eligible unless they have already received prior therapy with pembrolizumab or another PD1/PD-L1 immune checkpoint inhibitor or are deemed not to be a candidate for immune checkpoint therapy.
• Participants with known brain metastases or other CNS disease should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. Participants with treated brain metastases that have no evidence of progression or hemorrhage for at least 2 weeks after treatment will be allowed on study.
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to AZD1775.
• Participants may not have had prior receipt of a cell cycle checkpoint inhibitor (e.g., Chek1, Wee1, or ATR inhibition)
• Participants receiving any medications or substances that are sensitive CYP3A4 substrates or are CYP3A4 substrates with a narrow therapeutic index, or which are moderate to strong inhibitors/inducers of CYP3A4 which cannot be discontinued two weeks prior to Day 1 of dosing and withheld through the study until 2 weeks after the last dose of study drug. Co-administration of aprepitant or fosaprepitant during this study is prohibited.
• Transporter studies (in vitro) have shown that AZD1775 is an inhibitor of breast cancer resistance protein (BRCP). Please see Appendix B for additional details regarding prohibited drugs and drugs to be used with caution, including drugs affected by CYP3A4 or BRCP. Because the lists of these agents are constantly changing, it is important to also regularly consult a frequently-updated list such as http://medicine.iupui.edu/clinpharm/ddis/table.aspx; medical reference texts such as the Physicians' Desk Reference may also provide this information.
• Participants must not have undergone major surgical procedures within 28 days of beginning study treatment or minor surgical procedures within 7 days of beginning study treatment. Port-a-cath placement will be allowed within a 7 day window of starting study treatment.
• Participants must be able to swallow oral medication and may not have a percutaneous endoscopic gastrostomy (PEG) tube, be receiving total parenteral nutrition (TPN), or be dependent on IV fluid support.
• Participants with any of the following cardiac diseases currently or within the last 6 months as defined by the New York Heart Association (NYHA) ≥ Class 2 will not be eligible: