Swiss Go Trial Group

The long-term goal of this research project is to demonstrate whether HRD negative (HPDneg) patients benefit when additional multi-modal biological tumor information is incorporated into the molecular tumor board (mTB) treatment recommendation process.

This is an international, multicenter and randomized open-label phase III study designed to demonstrate, in patients with stage IIIC1 cervical cancer, whether para-aortic lymphadenectomy followed by tailored chemoradiation is associated with increased disease-free survival compared to patients staged with FDG-PET/CT only followed by chemoradiation.
The planned sample size is 510; including 200 patients in France.
In this trial, patients will be assigned in one of the two following treatments arms:
* Arm A (control arm): Standard chemo-radiotherapy and brachytherapy according to EMBRACE II and ESGO/ESTRO recommendations.
* Arm B (experimental arm): Pretherapeutic para-aortic lymphadenectomy followed by tailored chemo-radiotherapy and brachytherapy.
Each patient will be followed up for 5 years.
A cost-utility study will be performed in patients included in France. Other countries could be involved in this specific study. It will assess the incremental cost-utility ratio (cost per QALY gained) of para-aortic lymphadenectomy followed by tailored chemo-radiation in patients with positive PALN compared to patients staged with PET/CT only followed by chemo-radiation.
This study also has ancillary objectives:
* Biologic: To study T cell exhaustion, immune changes during chemoradiation, HPV ctDNA dynamic evolution, and the par-aortic lymph node as a premetastatic niche.
* Radiomics: To study the contribution of radiomics and FDG-PET/CT metabolic parameters to predict para-aortic lymph node involvement and clinical outcome.
* Senti-PAROLA: To evaluate the accuracy (Sensitivity, specificity, positive and negative predictive value) of the para-aortic sentinel lymph node (SPA) for PALN staging, and to evaluate the prognostic value of low volume metastasis of SPA.

The overall objective is to demonstrate preliminary efficacy of APX005M-carboplatin-PLD and APX005M-radiotherapy-carboplatin-PLD combinations as treatment for relapsed BRCAwt ovarian cancer patients, where platinum combination therapy is an option.