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FUlvestrant in Gynecological Cancers That Are Potentially Hormone Sensitive: the FUCHSia Study — FUCHSia  

Endometrial Cancer Clinical Trial

Official title:
An Open-label, Single Arm, Prospective, Multi-center, Tandem Two Stage Designed, Phase II Study to Evaluate the Efficacy of Fulvestrant in Women With Recurrent/Metastatic Estrogen Receptor Positive Gynecological Malignancies

Clinical Trial Summary

This phase 2 clinical trial aims to evaluate the efficacy of Fulvestrant, an ER-antagonist, in women with estrogen receptor positive (ER+) low-grade gynecological cancers. The primary objective is to determine the response rate (RR) to Fulvestrant, defined by partial or complete response according to RECIST v1.1 criteria. Secondary objectives include assessing progression-free survival (PFS) over 3 years, clinical benefit (CB), duration of response, safety and tolerability, and quality of life (QoL) in each tumor type group. Exploratory objectives involve evaluating the feasibility of 18F-FES PET imaging for detecting ER expression, the predictive value of sequential 18F-FES PET scans for treatment response, and collecting tumor biopsies and cf-DNA for genetic analysis to identify adaptive response mechanisms to Fulvestrant.

Clinical Trial Description

In this phase 2 clinical trial, the aim is to evaluate the efficacy of the ER-antagonist Fulvestrant in women with estrogen receptor positive (ER+) low grade gynecological cancers. The primary objective of the study is to determine the response rate (RR) upon Fulvestrant treatment, comprising either partial or complete response, as determined by RECIST v1.1 criteria for each tumor type. The secondary objectives are to: (1) determine progression-free survival (PFS) upon Fulvestrant treatment, after 3 years, in each tumor type group (2) assess clinical benefit (CB) upon Fulvestrant treatment, comprising complete response, partial response and stable disease, as determined by RECIST v1.1 criteria, in each tumor type group (3) assess duration of response in each tumor type group (4) assess safety and tolerability of Fulvestrant administration in each tumor type group (5) assess quality of life (QoL) and symptoms in each tumor type group. As exploratory objectives, the aim is to: (1) evaluate the feasibility of 16α-18F-fluoro-17β-estradiol (18F-FES) PET imaging for detection of ER expression (2) determine the value of sequential 18F-FES PET scans in predicting response to Fulvestrant (3) collect tumor biopsies and cf-DNA from patients enrolled in the trial. These samples will be subsequently characterized at the genetic level, to identify adaptive response mechanisms to Fulvestrant treatment. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03926936
Study type Interventional
Source University Hospital, Gasthuisberg
Contact
Status Completed
Phase Phase 2
Start date March 13, 2019
Completion date December 27, 2022
View Details
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