Study Architecture
Population (N=726): Postmenopausal, 1L or 2L.
Investigational (n=484)
Ribociclib + Fulv
Control (n=242)
Placebo + Fulv
0.81
Hazard Ratio (95% CI: 0.62–1.1)
Significant delay in definitive global health deterioration.
Time to Deterioration
Hazard Ratio < 1.0 favors Ribociclib arm.
Symptom Scores Over Time
Scores remained stable and comparable to placebo.
Key Findings
- Preserved QoL: No detriment to general health vs endocrine therapy alone.
- Pain Control: Delayed time to pain deterioration (HR 0.77).
- Adverse Events: Fatigue/nausea scores comparable to placebo.
Clinical Recommendation
Confident Prescription: Strong benefit-risk profile.
Counsel patients that Ribociclib + Fulvestrant extends survival without compromising daily Quality of Life or worsening pain compared to hormone therapy.