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Everolimus as second- or third-line treatment of advanced endometrial cancer: ENDORAD, a phase II trial of GINECO
I Ray-Coquard1, L Favier, B Weber
1Department of Medical Oncology, Centre Léon Bérard, 28 rue Laennec, Lyon Cedex 08, France. isabelle.ray-coquard@lyon.unicancer.fr
Background:
Patients with recurrent/metastatic endometrial cancer that progresses after chemotherapy have limited treatment options and poor outcomes. Preclinical data suggest the oral mammalian target of rapamycin inhibitor everolimus may provide clinical benefit in these patients.
Methods:
In this multicenter, open-label, phase 2 study, patients with advanced or metastatic endometrial cancer refractory to one or two previous chemotherapy regimens received everolimus 10 mg per day until progression or unacceptable toxicity. Primary end point was the non-progressive disease rate at 3 months. Secondary end points included duration of response, progression-free, and overall survival (OS), and safety.
Results:
Forty-four patients were enrolled (median age, 65 years); 66% received one previous chemotherapy regimen. The 3-month non-progressive disease rate was 36% (95% confidence interval 22-52%), including two patients (5%) with partial response (PR). At 6 months, two additional patients experienced PR. Median duration of response was 3.1 months. Median progression-free and OS were 2.8 months and 8.1 months, respectively. The most common adverse events were anaemia (100%), fatigue (93%), hypercholesterolaemia (81%), and lymphopenia (81%).
Conclusion:
Everolimus demonstrated efficacy and acceptable tolerability in patients with chemotherapy-refractory advanced or metastatic endometrial cancer. These results support the further development of phosphatidylinositol 3-kinase-targeted therapies in endometrial cancer.
Insights
Everolimus shows promise for advanced endometrial cancer patients who have not responded to chemotherapy. This study found it effective and tolerable, supporting further research into this treatment approach.
Area of Science:
- Oncology
- Pharmacology
- Clinical Trials
Background:
- Recurrent/metastatic endometrial cancer progressing after chemotherapy has limited treatment options.
- Preclinical data suggest everolimus, an oral mTOR inhibitor, may benefit these patients.
Purpose of the Study:
- To evaluate the efficacy and safety of everolimus in patients with advanced or metastatic endometrial cancer refractory to chemotherapy.
Main Methods:
- A multicenter, open-label, phase 2 study.
- 44 patients received everolimus 10 mg daily until progression or toxicity.
- Primary endpoint: 3-month non-progressive disease rate; Secondary endpoints: response duration, progression-free survival (PFS), overall survival (OS), and safety.
Main Results:
- 3-month non-progressive disease rate was 36% (95% CI 22-52%), with 5% partial response (PR).
- Median PFS was 2.8 months, and median OS was 8.1 months.
- Common adverse events included anemia (100%), fatigue (93%), hypercholesterolemia (81%), and lymphopenia (81%).
Conclusions:
- Everolimus demonstrated efficacy and acceptable tolerability in chemotherapy-refractory advanced/metastatic endometrial cancer.
- Results support further development of PI3K-targeted therapies for endometrial cancer.
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