Table 1: Main results from the SMART trials.

Study Objective Main results
SMART 1 Effects on menopausal symptoms, metabolic parameters, and safety vs. BZA, CE/MPA, and PBO

- Reduction of the moderate-severe daily hot flushes (p < 0.05 vs. PBO) and its severity (p < 0.001 vs. PBO)

- Improvements in sleep parameters (p < 0.05 vs. PBO)

- Improvements in lipid parameters and only minor effects on some coagulation parameters

- Endometrial, breast safety

SMART 2 Safety and efficacy treating moderate to severe vasomotor symptoms vs. BZA, CE/MPA, and PBO

- Reduction in the number and severity of hot flashes (p < 0.001 vs. PBO)

- Improvements in sleep parameters (p < 0.05 vs. PBO)

- Improvements in satisfaction and quality of life (p < 0.05 vs. PBO)

SMART 3 Efficacy and safety of two doses of TSEC vs. PBO for the treatment of moderate to severe VVA

- Increase in superficial and intermediate cells, and decrease in parabasal cells (p < 0.01 vs. PBO)

- Improvements in satisfaction, vasomotor symptoms, sexual function, and quality of life (p < 0.05 vs. PBO)

SMART 4 Endometrial safety and BMD effects vs. CE/MPA and PBO

- Endometrial safety similar to PBO. Bleeding and breast tenderness lower than HT (p < 0.05)

- Improve lumbar spine and total hip BMD (p < 0.001 vs. PBO)

Favorable safety/tolerability profile over 1 year

SMART 5 Endometrial safety and BMD effects vs. BZA alone, HT, and PBO

- Low endometrial hyperplasia incidence (< 1%) in all groups

- Cumulative amenorrhea rates similar to PBO and BZA and higher than HT (p < 0.001)

- Improve lumbar spine and total hip BMD (p < 0.001 vs. PBO)

- Breast tenderness similar to PBO and BZA and significantly lower than HT (p < 0.01)

- Adverse event rates were similar among the groups

- Serious AEs overall and AE-related discontinuation rates lower than HT