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Prometrium

Clinical Pharmacology
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Clinical Pharmacology

The times to diagnosis of endometrial hyperplasia over 36 months of treatment are shown in Figure 1. This figure illustrates graphically that the proportion of patients with hyperplasia was significantly greater for the conjugated estrogens group (64%) compared to the conjugated estrogens plus PROMETRIUM Capsules group (6%).

Figure 1


Time to Hyperplasia in women Receiving up to 36 Months of Treatment

The discontinuation rates due to hyperplasia over the 36 months of treatment are as shown in Table 4. For any degree of hyperplasia, the discontinuation rate for patients who received conjugated estrogens plus PROMETRIUM Capsules was similar to that of the placebo only group, while the discontinuation rate for patients who received conjugated estrogens alone was significantly higher. Women who permanently discontinued treatment due to hyperplasia were similar in demographics to the overall study population.

TABLE 4
Discontinuation Rate Due to Hyperplasia Over 36 Months of Treatment


Most Advanced Biopsy Result Through 36 Months of Treatment Treatment Group
Conjugated Estrogens +PROMETRIUM Capsules(cyclical) Conjugated Estrogens (only) Placebo
N=120 N=119 N=119
Number of patients % of patients Number of patients % of patients Number of patients % of patients
Adenocarcinoma 0 0 0 0 1 1
Atypical hyperplasia 1 1 10 8 0 0
Complex hyperplasia 0 0 21 18 1 1
Simple hyperplasia 1 1 13 11 0 0

In the same 3-year clinical trial, postmenopausal women were treated with PROMETRIUM Capsules in combination with conjugated estrogens, conjugated estrogens only, or placebo. There was no statistically significant difference between the PROMETRIUM Capsules plus conjugated estrogens group and the conjugated estrogens only group in increases of HDL-C and triglycerides, or in decreases of LDL-C. The changes observed in lipid profiles are shown in Table 5.

TABLE 5
Mean Changes from Baseline in Lipid Profiles After 36 Months of Treatment


Parameter Treatment Group Mean (Mean % Change)
  Conjugated Estrogens0.625 mg +PROMETRIUMCapsules 200 mg(cyclical)a Conjugated Estrogens 0.625 mg (only) Placebo
N= 176 to 177b N=171 to 173b N=171
Mean Change Mean % Change Mean Change Mean % Change Mean Change Mean % Change
LIPID PROFILE  
HDL-C(mmol/L) 0.07 5.1 0.10 7.2 -0.05 -2
LDL-C(mmol/L) -0.43 -11.8 -0.36 -9.5 -0.14 -2.9
Cholesterol (mmol/L) -0.26 -4.0 -0.22 -3.6 -0.15 -1.8
Triglyceride (mmol/L)c 0.20 17.8 0.15 13.7 0.01 0.6
a There are no significant changes (p<0.05) from conjugated estrogens values.
b
Number of subjects (N) varies by parameter.
c
Computed from log transformed data.
Brand Name: Prometrium
Generic Name: Progesterone
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