NCT03221816

Brief Summary

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

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Dec 2008

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2008

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2010

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2010

Completed
7.2 years until next milestone

First Submitted

Initial submission to the registry

July 17, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 19, 2017

Completed
Last Updated

July 21, 2017

Status Verified

July 1, 2017

Enrollment Period

1.1 years

First QC Date

July 17, 2017

Last Update Submit

July 18, 2017

Conditions

Keywords

Menopausehomocysteinelipid profile

Outcome Measures

Primary Outcomes (1)

  • supplementation may be beneficial in postmenopausal patients, with the intention to reduce the level of homocysteine

    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.

Study Arms (2)

Placebo Oral Tablet

PLACEBO COMPARATOR

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

Experimental group (Tenavit®)

EXPERIMENTAL

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®

Interventions

The experimental group received one tablet of Tenavit® daily for a period of 4 months.

Also known as: pyridoxine, folic acid, cyanocobalamin
Experimental group (Tenavit®)

Placebo group received the same tablet with the organoleptic characteristics of Tenavit® for a period of 4 months.

Also known as: Placebo
Placebo Oral Tablet

Eligibility Criteria

Age40 Years - 79 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (12)

  • Nair KG, Ashavaid TF, Nair SR, Eghlim FF. The genetic basis of hyperhomocysteinemia. Indian Heart J. 2000 Nov-Dec;52(7 Suppl):S16-17. No abstract available.

  • Chambers JC, McGregor A, Jean-Marie J, Obeid OA, Kooner JS. Demonstration of rapid onset vascular endothelial dysfunction after hyperhomocysteinemia: an effect reversible with vitamin C therapy. Circulation. 1999 Mar 9;99(9):1156-60. doi: 10.1161/01.cir.99.9.1156.

  • Nappo F, De Rosa N, Marfella R, De Lucia D, Ingrosso D, Perna AF, Farzati B, Giugliano D. Impairment of endothelial functions by acute hyperhomocysteinemia and reversal by antioxidant vitamins. JAMA. 1999 Jun 9;281(22):2113-8. doi: 10.1001/jama.281.22.2113.

  • Fonseca V, Guba SC, Fink LM. Hyperhomocysteinemia and the endocrine system: implications for atherosclerosis and thrombosis. Endocr Rev. 1999 Oct;20(5):738-59. doi: 10.1210/edrv.20.5.0381. No abstract available.

  • Lussier-Cacan S, Xhignesse M, Piolot A, Selhub J, Davignon J, Genest J Jr. Plasma total homocysteine in healthy subjects: sex-specific relation with biological traits. Am J Clin Nutr. 1996 Oct;64(4):587-93. doi: 10.1093/ajcn/64.4.587.

  • Selhub J, Jacques PF, Wilson PW, Rush D, Rosenberg IH. Vitamin status and intake as primary determinants of homocysteinemia in an elderly population. JAMA. 1993 Dec 8;270(22):2693-8. doi: 10.1001/jama.1993.03510220049033.

  • von Eckardstein A, Malinow MR, Upson B, Heinrich J, Schulte H, Schonfeld R, Kohler E, Assmann G. Effects of age, lipoproteins, and hemostatic parameters on the role of homocyst(e)inemia as a cardiovascular risk factor in men. Arterioscler Thromb. 1994 Mar;14(3):460-4. doi: 10.1161/01.atv.14.3.460.

  • McKinley MC. Nutritional aspects and possible pathological mechanisms of hyperhomocysteinaemia: an independent risk factor for vascular disease. Proc Nutr Soc. 2000 May;59(2):221-37. doi: 10.1017/s0029665100000252.

  • van Kempen BJ, Ferket BS, Kavousi M, Leening MJ, Steyerberg EW, Ikram MA, Witteman JC, Hofman A, Franco OH, Hunink MG. Performance of Framingham cardiovascular disease (CVD) predictions in the Rotterdam Study taking into account competing risks and disentangling CVD into coronary heart disease (CHD) and stroke. Int J Cardiol. 2014 Feb 15;171(3):413-8. doi: 10.1016/j.ijcard.2013.12.036. Epub 2013 Dec 27.

  • Gokkusu C, Ozbek Z, Tata G. Hormone replacement therapy: relation to homocysteine and prooxidant-antioxidant status in healthy postmenopausal women. Arch Gynecol Obstet. 2012 Mar;285(3):733-9. doi: 10.1007/s00404-011-2051-2. Epub 2011 Aug 30.

  • Reslan OM, Khalil RA. Vascular effects of estrogenic menopausal hormone therapy. Rev Recent Clin Trials. 2012 Feb;7(1):47-70. doi: 10.2174/157488712799363253.

  • Dodds L, Fell DB, Dooley KC, Armson BA, Allen AC, Nassar BA, Perkins S, Joseph KS. Effect of homocysteine concentration in early pregnancy on gestational hypertensive disorders and other pregnancy outcomes. Clin Chem. 2008 Feb;54(2):326-34. doi: 10.1373/clinchem.2007.097469. Epub 2007 Dec 10.

Related Links

MeSH Terms

Conditions

Dyslipidemias

Interventions

PyridoxineFolic AcidVitamin B 12

Condition Hierarchy (Ancestors)

Lipid Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Vitamin B 6PicolinesPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPterinsPteridinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingCorrinoidsTetrapyrrolesPyrrolesAzolesHeterocyclic Compounds, 4 or More RingsMacrocyclic CompoundsPolycyclic Compounds

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 17, 2017

First Posted

July 19, 2017

Study Start

December 1, 2008

Primary Completion

January 1, 2010

Study Completion

May 1, 2010

Last Updated

July 21, 2017

Record last verified: 2017-07