Clinical Trials

Inclusion Criteria:

• Male and female ≥ 18 years old.
• Triple Negative Breast Cancer participants only:
  • Participant must have histologically or cytologically confirmed metastatic or locally recurrent estrogen receptor (ER)-negative (<1% by immunohistochemistry [IHC]), progesterone receptor (PR)-negative (<1% IHC) and human epidermal growth factor receptor 2 (Her2)-negative (either fluorescent in situ hybridisation [FISH] negative, 0 or 1+ by IHC, or IHC2+ and FISH negative per ASCO/CAP definition) breast cancer. Participant must be relapsed/refractory to at least one line of systemic chemotherapy in the metastatic setting or intolerant of existing therapy(ies) known to provide clinical benefit for their condition. Prior exposure to an immune checkpoint inhibitor is allowed.
• Platinum-Resistant High Grade Serous Ovarian Cancer, primary peritoneal cancer and/or fallopian-tube cancer participants only:
  • Participant must have histologically or cytologically confirmed diagnosis of metastatic or unresectable high grade serous ovarian cancer, with platinum-resistance defined as progression during or within 6 months of a platinum-containing regimen. Prior exposure to platinum-resistant recurrence therapy is allowed.
• Serous Endometrial Cancer participants only (Dose Exploration only):
  • Participant must have histologically or cytologically confirmed diagnosis of metastatic or recurrent serous endometrial cancer, and be relapsed/refractory to at least one line of systemic therapy in the metastatic/recurrent setting or intolerant of existing therapy(ies) known to provide clinical benefit for their condition.
  • Participants with advanced or metastatic solid tumor with TP53MUT (Dose Exploration only, as assessed by local testing) that is unresectable and relapsed/refractory to at least one line of systemic chemotherapy or intolerant.

Exclusion Criteria:

• Active brain metastases.
• Primary CNS tumor, hematological malignancies or lymphoma.
• Uncontrolled pleural effusions(s), pericardial effusion, or ascites.
• Gastrointestinal (GI) tract disease causing the inability to take oral medication.