Effect of Polyvitaminics (Pyridoxine Hydrochloride, Folic Acid and Cyanocobalamin) in the Concentration of Homocysteine and Lipid Profile in Postmenopausal Women: a Randomized Controlled, Double-blind Clinical Trial

July 18, 2017 updated by: Carolina Vicente Banzoli, Casa de Saúde santa Marcelina
Introduction: Cardiovascular diseases (CVD) are the main cause of death in Western countries. High levels of homocysteine (He) has been considered an important risk factor for coronary artery disease. Objective: To evaluate the effects of the drug Tenavit® (pyridoxine hydrochloride 4.00mg + folic acid 0.80mg + cyanocobalamin 0.40 mg) on plasma homocysteine concentrations and lipid profile in postmenopausal women. Methods: Sixty women were postmenopausal selected from the outpatient Gynecology Hospital Santa Marcelina that passed by routine consultations and fulfilling the inclusion criteria were invited to the study. The women were randomly allocated to control or experimental group (30 in each group) in a do uble-blind controlled clinical trial. The experimental group received one tablet of Tenavit® daily and the placebo group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months. The women were assessed before the intervention and after 4 months of medication. A self-report questionnaire to assess quality of life (QSF-36) was applied and anthropometric measurements, cholesterol and fractions, triglycerides, fasting glucose, homocysteine and cysteine were evaluated. Results: The only variable that presented significant alteration in both dimensions (between and within group) was the homocysteine. It was observed statistical significant between groups in the final measure for homocysteine (control group: 11.5mmol/ L; experimental group: 9.4 mmo

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Subjects The study protocol and informed consent was approved by the Ethics Committee of the Hospital Santa Marcelina, Sao Paulo, Brazil (Process nº 09/08, CAAE nº 0016.0.270.000-08).Sixty women (figure 1) were postmenopausal selected from the outpatient Gynecology - Endocrine Hospital Santa Marcelina that passed by routine consultations and fulfilling the inclusion criteria were invited to the study.

Inclusion criteria were: a year of amenorrhea, FSH (follicle stimulating hormone) greater than 30mUI/ml and submit dyslipidemia, defined as LDL> 150 mg / dl15. Women with diabetes difficult to control or with recent myocardial infarction or thromboembolic diseases, severe hepatic impairment or activity were excluded. In addition, patients who had any form of cancer were excluded from the group.

Study Design The women were randomly allocated to control or experimental group (30 in each group) in a double-blind controlled clinical trial. The experimental group received one tablet of Tenavit®(pyridoxine hydrochloride 4.00mg + folic acid 0.80mg + cyanocobalamin 0.40mg) daily and the placebo group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months. After this period of treatment, the women were assessed.

Procedures During clinical examination, a self-report questionnaire to assess quality of life (QSF-36) that demonstrates how the individual feels regarding your activities, your health and disposition on a daily, always referring to the last month15, was applied. The Framingham Score was also applied. Framingham predictions was good in the low- to intermediate cardiovascular risk16,17.Anthropometric measurements of blood pressure, weight, height, body mass index, waist and hip were evaluated by the same medical team. Venous blood was collected on two different occasions during the study (at baseline and at end of treatment), while maintaining the 12-hour fast and the interval of 4 months between tests, both in the experimental and in the control group. Total cholesterol and fractions, triglycerides, fasting glucose, homocysteine and cysteine were performed. The dosage of plasma homocysteine and cysteine was performed by high performance liquid chromatography (HPLC).

Study Type

Interventional

Enrollment (Actual)

60

Phase

  • Phase 4

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 79 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • 60 women with one year of amenorrhea, FSH greater than 30, and those with dyslipidemia.

Exclusion Criteria:

  • Women with difficult-to-control diabetes, recent heart attack or thromboembolic diseases, severe or active hepatic failure were excluded from this group. In addition, patients who had cancer.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
PLACEBO_COMPARATOR: Placebo Oral Tablet

Sixty women were postmenopausal selected from the outpatient Gynecology Hospital Santa Marcelina that passed by routine consultations and fulfilling the inclusion criteria were invited to the study.

The women were randomly allocated to control or experimental group (30 in each group) in a double-blind controlled clinical trial.

The control group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months.
Drug: Placebo Oral Tablet
Placebo group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months.
Other Names:
  • Placebo
EXPERIMENTAL: Experimental group (Tenavit®)

Sixty women were postmenopausal selected from the outpatient Gynecology Hospital Santa Marcelina that passed by routine consultations and fulfilling the inclusion criteria were invited to the study.

The experimental group received one tablet of Tenavit® (pyridoxine hydrochloride 4.00mg + folic acid 0.80mg + cyanocobalamin 0.40 mg) daily and the placebo group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months.
Drug: Tenavit®
The experimental group received one tablet of Tenavit® daily for a period of 4 months.
Other Names:
  • pyridoxine, folic acid, cyanocobalamin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
supplementation may be beneficial in postmenopausal patients, with the intention to reduce the level of homocysteine
Time Frame: The women were assessed before the intervention and after 4 months of medication.
supplementation may be beneficial in postmenopausal patients, with the intention to reduce the level of homocysteine and, thus, reduce the cardiovascular risk in this age.
The women were assessed before the intervention and after 4 months of medication.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Casa de Saúde santa Marcelina

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2008

Primary Completion (ACTUAL)

January 1, 2010

Study Completion (ACTUAL)

May 1, 2010

Study Registration Dates

First Submitted

July 17, 2017

First Submitted That Met QC Criteria

July 17, 2017

First Posted (ACTUAL)

July 19, 2017

Study Record Updates

Last Update Posted (ACTUAL)

July 21, 2017

Last Update Submitted That Met QC Criteria

July 18, 2017

Last Verified

July 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • U1111-1176-6998

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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