Translational research

Ovarian cancer

Ovarian cancer is the 8th most common cancer in women with 314,000 new cases diagnosed globally each year and 823,000 women living with this cancer.

Even in developed nations, such as the United States, ovarian cancer is often diagnosed at a late stage when the cancer has metastasised. For the 60% patients presenting with late-stage disease the average five-year survival rate is just 31%.

Earlier diagnosis of ovarian cancer is needed to improve patient prognosis and survival. ANGLE is developing an assay for the triage of women presenting with a pelvic mass. In combination with the current standard of care this will help clinicians better establish which women are at the highest risk of malignancy.

Key statistics


most common cancer in women


new cases diagnosed globally each year


women living with ovarian cancer


five-year survival rate for late-stage diagnosis


patients present with late-stage disease

To date ANGLE has completed three ovarian clinical studies in 600 participants with uniformly positive results.

In September 2022, ANGLE announced positive results from the third study, an ovarian cancer clinical study demonstrating that the Parsortix®System, coupled with gene expression analysis of circulating tumour cells (CTCs), can be used to determine if a woman is at risk of a malignant pelvic mass.

This 200-patient study was performed in collaboration with the University of Rochester Medical Centre Wilmot Cancer Institute with samples analysed in ANGLE’s clinical laboratory in the United States.

CTCs were evaluated using ANGLE’s ovarian assay to determine the expression levels of 164 different gene transcripts. Analysis of the data produced an algorithm to predict the risk of malignancy by combining the physician’s initial cancer risk assessment (benign vs. malignant), the patient’s age, and the RNA expression levels of 23 critical genes.

The performance of the Parsortix ovarian assay in this study had an area under the curve (AUC) 95.4%.

Image of ovarian cancer cells

This is in line with the high level of accuracy demonstrated in ANGLE’s previous 200 patient multicenter study reported in 2018 (AUC 95.1%) and achieved ANGLE’s objective of best-in-class results with both sensitivity and specificity exceeding 90%.


Portrait image of Moore Richard MD

The next generation ANGLE pelvic mass triage test has the ability to out-perform current clinical practice in accurately discriminating malignant from benign pelvic masses prior to biopsy or surgery. The improved accuracy of the test results in a high level of sensitivity as well as a substantial reduction in false positives.”

Dr Richard Moore

Director of the Gynecologic Oncology Division, University of Rochester Medical Center Wilmot Cancer Institute, United States

The clinical results demonstrate ANGLE’s capability to undertake complex molecular analysis of CTCs harvested using Parsortix technology.

The data also confirms the suitability of Parsortix technology for use in both hospital and centralised laboratories.

Following these excellent results, ANGLE is finalising plans for porting the assay onto its Landscape+ platform. The Landscape+ ovarian assay will deliver an accurate and cost-effective solution to market, using the gene panel optimised in the clinical verification study in combination with a third-party molecular platform. The test has the potential to both significantly improve patient outcomes and reduce overall healthcare costs.

For Research Use Only. Not For Use in Diagnostic Procedures.

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