Table 1 Summary of trial characteristics and results

From: Cdk4/6 inhibitors and overall survival: power of first-line trials in metastatic breast cancer

 

PALOMA-2 trial

MONALEESA-2 trial

MONALEESA-7 trial

MONARCH-3 trial

cdk4/6inh

Palbociclib

Ribociclib

Ribociclib

Abemacicl

Number of patients AI + placebo arm

222

334

337

165

Median PFS AI + placebo arm

14.5 months

14.7 months

13 months

14.7 months

Number of patients AI + cdk4/6inh arm

444

334

337

328

Median PFS AI + cdk4/6inh arm

24.8 months

Not reached

23.8 months

Not reached

PFS hazard ratio [95%CI]

0.58 [0.46; 0.72]

0.56 [0.43; 0.72]

0.55a

0.54 [0.41; 0.72]

  1. cdk4/6inh cdk4/6 inhibitor, AI aromatase inhibitor
  2. aConfidence interval not available at time of analysis