First-in-human Phase I Study to Evaluate Safety, Tolerability and Antineoplastic Activity of OATD-02 in Patients with Selected Advanced And/or Metastatic Solid Tumours

Who May Qualify: 1. Capable of understanding and complying with protocol requirements. 2. Male or female patient aged ≥18 years at Screening. 3. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. 4. diagnosed by tissue sample (biopsy-confirmed) advanced and/or metastatic colorectal cancer, renal cell cancer, or pancreatic cancer or recurrent serous ovarian cancer (platinum-resistant/ineligible to receive platinum-based chemotherapy), that either progressed or relapsed after all relevant standard of care cancer therapies (at least 1 line of systemic cancer therapy). 5. Written willing to sign a consent form given by the patient before the initiation of any study procedures. Who Should NOT Join This Trial: 1. Unable to take oral medications. 2. Clinically active cancer that has spread to the brain and/or carcinomatous meningitis. 3. Major surgery within 30 days before the first IMP dose. 4. Pregnant or breastfeeding women. 5. Known allergy to excipients of the IMP. 6. Severe, uncontrolled systemic disease which in the opinion of the investigator, would compromise the safety of the patient or the patient's ability to participate in the study. 7. Participation in another clinical study within 4 weeks before the first IMP dose. Always talk to your doctor about whether this trial is right for you.