Christianne Lok is a leading expert in gynecologic oncology, renowned for her work on cancer diagnosis and treatment during pregnancy as part of the International Network on Cancer, Infertility and Pregnancy (INCIP). She plays a pivotal role in research and clinical guidelines for gestational trophoblastic disease, addressing both medical and psychosocial dimensions. Her contributions to ovarian cancer research include biomarker studies—particularly on ctDNA and HE4—as well as molecular profiling and biobanking of rare ovarian cancer subtypes. Lok actively participates in international collaborations such as ESGO, GCIG, ISSTD, ENGOT and EOTTD, shaping global standards in women’s cancer care. Her prolific publication record underscores her influence in advancing multidisciplinary, patient-centered research.