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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04881851
Other study ID # CE10403
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date May 7, 2015
Est. completion date December 31, 2024

Study information

Verified date May 2021
Source Universita di Verona
Contact Paolo Moghetti, Professor
Phone +39/0458123110
Email paolo.moghetti@univr.it
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of this double-blinded, three-armed randomized controlled trial (RCT) is to evaluate the effects of a 6 months treatment with inositol alone or inositol associated with alpha-lipoic acid in women with polycystic ovary syndrome (PCOS). The study population is composed of 90 women with PCOS (diagnosed according to the Rotterdam criteria). Subjects are randomized to one of the 3 arms of treatment (Inositol + alpha lipoic acid + folic acid vs inositol + folic acid vs folic acid alone). At recruitment and after 6 months of treatment, the following data are collected: - clinical data: height, weight, BMI, waist and hip circumference, blood pressure, Ferriman Gallwey Score, menstrual diary - endocrine parameters (serum total and free testosterone levels, SHBG levels) - metabolic profile: glycemia and insulinemia at fasting and after oral glucose tolerance test (OGTT), serum lipids - insulin-sensitivity measured by the hyperinsulinemic-euglycemic clamp and surrogate indexes - ovarian ultrasound data. Furthermore, ovulation is evaluated from the 2nd to the 6th month of the study through progesterone serial dosages on weekly urinary samples. The primary outcome of the study is the serum free testosterone variation after 6 months of treatment. Secondary outcomes are the variations of lipid profile, ovarian morphology and insulin-sensitivity after 6 months and the number of ovulations occurring in the last 4 months of treatment.


Description:

The aim of this study is to evaluate the effects of a 6 months treatment with inositol, alone or associated with alpha-lipoic acid, in women with PCOS. This is a double blinded, three-armed RCT. The study population is composed of 90 women with PCOS, recruited at the Department of Endocrinology and Metabolic Disease of Azienda Ospedaliera Universitaria Integrata (AOUI), Verona. After recruitment, subjects are randomly assigned to one of the 3 arms of treatment (Inositol + alpha lipoic acid + folic acid vs inositol + folic acid vs folic acid alone). Randomisation is stratified by BMI category (3 categories 18


Recruitment information / eligibility

Status Recruiting
Enrollment 90
Est. completion date December 31, 2024
Est. primary completion date December 31, 2023
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria: - female subjects - age between 18 and 40 years old - diagnosed with PCOS (according to the Rotterdam criteria) - not use of possible interfering drugs in the 4 previous months - written informed consent. Exclusion Criteria: - BMI = 35 kg/m2 - acute illnesses - chronic kidney or hepatic disease - pregnant - taking possible interfering drugs

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Inositol + alpha lipoic acid
Inositol 1000 mg + alpha lipoic acid 400 mg + folic acid 200 ug: 1 sachet at breakfast and 1 sachet at dinner
Inositol
Inositol 1000 mg + folic acid 200 ug: 1 sachet at breakfast and 1 sachet at dinner
Folic acid (placebo comparator)
Folic acid 200 ug: 1 sachet at breakfast and 1 sachet at dinner

Locations

Country Name City State
Italy Endocrinology, Diabetes and Metabolism Section, Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata of Verona Verona

Sponsors (2)

Lead Sponsor Collaborator
Universita di Verona Laborest Italia SPA

Country where clinical trial is conducted

Italy, 

References & Publications (33)

Azziz R, Ehrmann D, Legro RS, Whitcomb RW, Hanley R, Fereshetian AG, O'Keefe M, Ghazzi MN; PCOS/Troglitazone Study Group. Troglitazone improves ovulation and hirsutism in the polycystic ovary syndrome: a multicenter, double blind, placebo-controlled trial. J Clin Endocrinol Metab. 2001 Apr;86(4):1626-32. — View Citation

Bae SM, Bae MN, Kim EY, Kim IK, Seo MW, Shin JK, Cho SR, Jeong GH. Recurrent Insulin Autoimmune Syndrome Caused by a-Lipoic Acid in Type 2 Diabetes. Endocrinol Metab (Seoul). 2013 Dec;28(4):326-30. doi: 10.3803/EnM.2013.28.4.326. Epub 2013 Dec 12. — View Citation

Baillargeon JP, Diamanti-Kandarakis E, Ostlund RE Jr, Apridonidze T, Iuorno MJ, Nestler JE. Altered D-chiro-inositol urinary clearance in women with polycystic ovary syndrome. Diabetes Care. 2006 Feb;29(2):300-5. — View Citation

Baptiste CG, Battista MC, Trottier A, Baillargeon JP. Insulin and hyperandrogenism in women with polycystic ovary syndrome. J Steroid Biochem Mol Biol. 2010 Oct;122(1-3):42-52. doi: 10.1016/j.jsbmb.2009.12.010. Epub 2009 Dec 28. Review. — View Citation

Barua S, Kuizon S, Junaid MA. Folic acid supplementation in pregnancy and implications in health and disease. J Biomed Sci. 2014 Aug 19;21:77. doi: 10.1186/s12929-014-0077-z. Review. — View Citation

Capasso I, Esposito E, Maurea N, Montella M, Crispo A, De Laurentiis M, D'Aiuto M, Frasci G, Botti G, Grimaldi M, Cavalcanti E, Esposito G, Fucito A, Brillante G, D'Aiuto G, Ciliberto G. Combination of inositol and alpha lipoic acid in metabolic syndrome-affected women: a randomized placebo-controlled trial. Trials. 2013 Aug 28;14:273. doi: 10.1186/1745-6215-14-273. — View Citation

Carlomagno G, Unfer V. Inositol safety: clinical evidences. Eur Rev Med Pharmacol Sci. 2011 Aug;15(8):931-6. Review. — View Citation

Cheang KI, Baillargeon JP, Essah PA, Ostlund RE Jr, Apridonize T, Islam L, Nestler JE. Insulin-stimulated release of D-chiro-inositol-containing inositolphosphoglycan mediator correlates with insulin sensitivity in women with polycystic ovary syndrome. Metabolism. 2008 Oct;57(10):1390-7. doi: 10.1016/j.metabol.2008.05.008. — View Citation

De Leo V, la Marca A, Petraglia F. Insulin-lowering agents in the management of polycystic ovary syndrome. Endocr Rev. 2003 Oct;24(5):633-67. Review. — View Citation

DeFronzo RA, Tobin JD, Andres R. Glucose clamp technique: a method for quantifying insulin secretion and resistance. Am J Physiol. 1979 Sep;237(3):E214-23. — View Citation

Dunaif A. Insulin resistance and the polycystic ovary syndrome: mechanism and implications for pathogenesis. Endocr Rev. 1997 Dec;18(6):774-800. Review. — View Citation

Elnashar A, Abdelmageed E, Fayed M, Sharaf M. Clomiphene citrate and dexamethazone in treatment of clomiphene citrate-resistant polycystic ovary syndrome: a prospective placebo-controlled study. Hum Reprod. 2006 Jul;21(7):1805-8. Epub 2006 Mar 16. — View Citation

Fenkci V, Fenkci S, Yilmazer M, Serteser M. Decreased total antioxidant status and increased oxidative stress in women with polycystic ovary syndrome may contribute to the risk of cardiovascular disease. Fertil Steril. 2003 Jul;80(1):123-7. — View Citation

Fleming R, Hopkinson ZE, Wallace AM, Greer IA, Sattar N. Ovarian function and metabolic factors in women with oligomenorrhea treated with metformin in a randomized double blind placebo-controlled trial. J Clin Endocrinol Metab. 2002 Feb;87(2):569-74. — View Citation

Franks S. Polycystic ovary syndrome. N Engl J Med. 1995 Sep 28;333(13):853-61. Review. Erratum in: N Engl J Med 1995 Nov 23;333(21):1435. — View Citation

Gerli S, Mignosa M, Di Renzo GC. Effects of inositol on ovarian function and metabolic factors in women with PCOS: a randomized double blind placebo-controlled trial. Eur Rev Med Pharmacol Sci. 2003 Nov-Dec;7(6):151-9. — View Citation

Giordano D, Corrado F, Santamaria A, Quattrone S, Pintaudi B, Di Benedetto A, D'Anna R. Effects of myo-inositol supplementation in postmenopausal women with metabolic syndrome: a perspective, randomized, placebo-controlled study. Menopause. 2011 Jan;18(1):102-4. doi: 10.1097/gme.0b013e3181e8e1b1. — View Citation

Gray DS, Bray GA, Gemayel N, Kaplan K. Effect of obesity on bioelectrical impedance. Am J Clin Nutr. 1989 Aug;50(2):255-60. — View Citation

Hatch R, Rosenfield RL, Kim MH, Tredway D. Hirsutism: implications, etiology, and management. Am J Obstet Gynecol. 1981 Aug 1;140(7):815-30. — View Citation

Iuorno MJ, Jakubowicz DJ, Baillargeon JP, Dillon P, Gunn RD, Allan G, Nestler JE. Effects of d-chiro-inositol in lean women with the polycystic ovary syndrome. Endocr Pract. 2002 Nov-Dec;8(6):417-23. — View Citation

Jacob S, Ruus P, Hermann R, Tritschler HJ, Maerker E, Renn W, Augustin HJ, Dietze GJ, Rett K. Oral administration of RAC-alpha-lipoic acid modulates insulin sensitivity in patients with type-2 diabetes mellitus: a placebo-controlled pilot trial. Free Radic Biol Med. 1999 Aug;27(3-4):309-14. — View Citation

Kozakowski J, Zgliczynski W. Body composition, glucose metabolism markers and serum androgens - association in women with polycystic ovary syndrome. Endokrynol Pol. 2013;64(2):94-100. — View Citation

Masharani U, Gjerde C, Evans JL, Youngren JF, Goldfine ID. Effects of controlled-release alpha lipoic acid in lean, nondiabetic patients with polycystic ovary syndrome. J Diabetes Sci Technol. 2010 Mar 1;4(2):359-64. — View Citation

Matsuda M, DeFronzo RA. Insulin sensitivity indices obtained from oral glucose tolerance testing: comparison with the euglycemic insulin clamp. Diabetes Care. 1999 Sep;22(9):1462-70. — View Citation

Moghetti P, Castello R, Negri C, Tosi F, Perrone F, Caputo M, Zanolin E, Muggeo M. Metformin effects on clinical features, endocrine and metabolic profiles, and insulin sensitivity in polycystic ovary syndrome: a randomized, double-blind, placebo-controlled 6-month trial, followed by open, long-term clinical evaluation. J Clin Endocrinol Metab. 2000 Jan;85(1):139-46. — View Citation

Moghetti P, Tosi F, Castello R, Magnani CM, Negri C, Brun E, Furlani L, Caputo M, Muggeo M. The insulin resistance in women with hyperandrogenism is partially reversed by antiandrogen treatment: evidence that androgens impair insulin action in women. J Clin Endocrinol Metab. 1996 Mar;81(3):952-60. — View Citation

Nestler JE, Jakubowicz DJ, Evans WS, Pasquali R. Effects of metformin on spontaneous and clomiphene-induced ovulation in the polycystic ovary syndrome. N Engl J Med. 1998 Jun 25;338(26):1876-80. — View Citation

Nestler JE, Jakubowicz DJ, Reamer P, Gunn RD, Allan G. Ovulatory and metabolic effects of D-chiro-inositol in the polycystic ovary syndrome. N Engl J Med. 1999 Apr 29;340(17):1314-20. — View Citation

Rotterdam ESHRE/ASRM-Sponsored PCOS consensus workshop group. Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS). Hum Reprod. 2004 Jan;19(1):41-7. Review. — View Citation

Saltiel AR. Second messengers of insulin action. Diabetes Care. 1990 Mar;13(3):244-56. Review. — View Citation

Shay KP, Moreau RF, Smith EJ, Smith AR, Hagen TM. Alpha-lipoic acid as a dietary supplement: molecular mechanisms and therapeutic potential. Biochim Biophys Acta. 2009 Oct;1790(10):1149-60. doi: 10.1016/j.bbagen.2009.07.026. Epub 2009 Aug 4. Review. — View Citation

Tang T, Lord JM, Norman RJ, Yasmin E, Balen AH. Insulin-sensitising drugs (metformin, rosiglitazone, pioglitazone, D-chiro-inositol) for women with polycystic ovary syndrome, oligo amenorrhoea and subfertility. Cochrane Database Syst Rev. 2012 May 16;(5):CD003053. doi: 10.1002/14651858.CD003053.pub5. Review. Update in: Cochrane Database Syst Rev. 2017 Nov 29;11:CD003053. — View Citation

Thessaloniki ESHRE/ASRM-Sponsored PCOS Consensus Workshop Group. Consensus on infertility treatment related to polycystic ovary syndrome. Hum Reprod. 2008 Mar;23(3):462-77. doi: 10.1093/humrep/dem426. Erratum in: Hum Reprod. 2008 Jun;23(6):1474. — View Citation

* Note: There are 33 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Free testosterone variation Free testosterone variation after 6 months of treatment 6 months
Secondary Insulin sensitivity variation Insulin sensitivity variation after 6 months of treatment, evaluated by surrogate indexes in all the subjects and by repeating hyperinsulinemic euglycemic clamp after 6 months of treatment in women that are insulin-resistant at baseline 6 months
Secondary Lipid profile variation Lipid profile variation after 6 months of treatment 6 months
Secondary Ovarian morphology variation Ovarian morphology variation after 6 months of treatment 6 months
Secondary Number of ovulations in the last 4 months of treatment Number of ovulations in the last 4 months of treatment 4 months
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