Profs Domenica Lorusso and Jean-Sebastien Frenel share expert insights on the PYNNACLE Phase 2 interim analysis at ESGO 2026. The PYNNACLE study evaluates rezatapopt*, a first-in-class p53 reactivator, in TP53 Y220C–mutant advanced solid tumours, including ovarian cancer.
In this video, the experts discuss:
- TP53, the Y220C variant, and the rationale for mutant p53 reactivation
- Study overview and practice implications, spotlighting ovarian cancer
- Testing strategies for early and accurate patient identification
Clinical takeaways
- Rezatapopt is a first-in-class investigational p53 reactivator that selectively binds to the mutated p53 Y220C protein, stabilising its structure to restore wild-type tumour suppressor activity
- Rezatapopt demonstrates rapid, durable and broad antitumour activity in heavily pretreated patients with TP53 Y220C-mutated advanced ovarian cancer, where effective targeted therapies and biomarkers are limited
- Looking ahead, it will be important to prioritise early and accurate identification through up-front comprehensive genomic profiling using NGS with TP53 gene coverage. Tissue is preferred; when tissue is limited, selected ctDNA assays capable of excluding CHIP may be used
*Rezatapopt is an investigational agent which is not approved by a regulatory agency
Downloadable
20 MIN
Feb 2026
