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Vasomotor Symptoms (VMS) Progesterone Study: Vasomotor Symptoms and Endothelial Function - Trial of Oral Micronized Progesterone

University of British Columbia logo

University of British Columbia

Status and phase

Unknown
Phase 2

Conditions

Menopause

Treatments

Other: Placebo
Drug: Oral Micronized Progesterone (Prometrium®)

Study type

Interventional

Funder types

Other

Identifiers

NCT00152438
C03-0088

Details and patient eligibility

About

The primary purpose of this study is to determine the effects of a full dose (300 mg at hs) of oral micronized progesterone (OMP) on vasomotor symptoms [VMS] (hot flushes/night sweats), on forearm blood flow and on lipid levels and blood pressure in menopausal women without cardiovascular disease and with moderate to severe VMS.

The hypotheses are that progesterone will improve hot flushes, increase endothelium-dependent forearm blood flow and will decrease blood pressure without change in lipid levels.

Full description

In this 4-month study, menopausal women are randomized to either placebo or oral micronized progesterone (Prometrium®). Participants maintain a daily diary to keep track of their vasomotor symptoms and other factors. Forearm blood flow will be assessed by venous occlusion plethysmography at baseline and after three months of therapy. Screening tests at baseline to rule out heart disease include measurement of blood pressure and heart rate, electrocardiogram (ECG) and blood tests - fasting blood glucose and lipid profile.

Collection of serum and plasma samples at baseline and end of therapy for analysis of cardiovascular markers (e.g., c-reactive protein) and clotting and fibrinolytic markers. Continued daily diary collection for one month after therapy discontinuation to look for possible rebound effects. Analysis of outcomes will be by analysis of covariates, with final value as the outcome, therapy as factor and baseline values as covariate.

Enrollment

125 estimated patients

Sex

Female

Ages

40 to 65 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  1. Menopausal women (final menstrual period one or more but less than 10 years before)
  2. No evidence of vascular disease (normal BP; without diabetes mellitus; normal cholesterol levels and non-smoker for at least a year; and normal ECG.)
  3. Moderate to severe VMS during the day and night.

Exclusion criteria

  1. Any menstruation in the preceding year.
  2. History of hysterectomy without ovariectomy unless 60 years of age.
  3. Use of ovarian hormone therapy (estrogen, progestin, progesterone or androgen) or selective estrogen receptor modulator (SERM) therapy (raloxifene or tamoxifen) in the preceding six months.
  4. Body mass index (BMI) over 35 or less than 20.
  5. Mean of several pre-treatment blood pressures over 145/95.
  6. Documented abnormal cholesterol; abnormal fasting capillary glucose; abnormal angiogram; ECG or exercise stress tests or a diagnosis of diabetes mellitus; or any history suggestive of angina.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

125 participants in 2 patient groups, including a placebo group

1
Experimental group
Description:
Oral micronized progesterone
Treatment:
Drug: Oral Micronized Progesterone (Prometrium®)
2
Placebo Comparator group
Description:
Placebo
Treatment:
Other: Placebo

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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