NCT04672720

Brief Summary

The aim of this study was to evaluate the effect of oral L-carnitine supplementation during controlled ovarian stimulation (COS) in patients with polycystic ovary syndrome (PCOS) in a double-blind randomized clinical trial. The eligible patients with PCOS diagnosis (on the basis of Rotterdam criteria) who referred to Royan Research Institute for IVF / ICSI treatment cycles will be evaluated.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
110

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

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

March 1, 2020

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

December 13, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

December 17, 2020

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 29, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2023

Completed
Last Updated

June 18, 2023

Status Verified

June 1, 2023

Enrollment Period

2.8 years

First QC Date

December 13, 2020

Last Update Submit

June 14, 2023

Conditions

Keywords

L-carnitineAssisted reproductive technologyControlled ovarian stimulation

Outcome Measures

Primary Outcomes (1)

  • Occyte maturity rate

    Oocyte maturity was defined as the ratio of metaphase II (MII) oocytes to the number of collected oocytes in thepatients undergoing with ICSI.

    24 hours post oocyte retrieval day

Secondary Outcomes (5)

  • Fertilization rate

    48 hours post IVF/ICSI

  • Quality of obtained embryos

    48 or 72 hours after oocyte retrieval

  • Implantation rate

    1 month post embryo transfer

  • Clinical pregnancy rate

    6-8 weeks of gestation

  • ongoing pregnancy rate

    20 weeks after the embryos transfer

Study Arms (2)

Adding l-carnitine to controlled ovarian stimulation antagonist protocol

EXPERIMENTAL

The controlled ovarian stimulation procedure in all the study participate will be same by using a flexible regimen of GnRH antagonist with E2 priming. In the experimental group, the women will receive 3 tablet of L-carnitine daily (L-carnitine® tablet 1000 mg, Karen Pharmaceutical Company, Iran) from day 2 of the previous menstrual cycle until pregnancy test day.

Drug: L-carnitine 1000 Mg

Adding placebo to controlled ovarian stimulation antagonist protocol

PLACEBO COMPARATOR

The controlled ovarian stimulation procedure in all the study participate will be same by using a flexible regimen of GnRH antagonist with E2 priming. The patients in the control group will receive 3 placebo tablets in similar way for 8 weeks.

Drug: L-carnitine 1000 Mg

Interventions

Prescription 3mg l-carnitine (L-carnitine® tablet 1000 mg, Karen Pharmaceutical Company, Iran) daily from day 2 of the previous menstrual cycle until pregnancy test day (approximately 8 weeks).

Also known as: Quaternary ammonium compound
Adding l-carnitine to controlled ovarian stimulation antagonist protocolAdding placebo to controlled ovarian stimulation antagonist protocol

Eligibility Criteria

Age20 Years - 37 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Patients between 20 to 37 years old, presenting with primary or secondary infertility following regular intercourse for at least 1 year and diagnosed with polycystic ovary syndrome (PCOS) according to Rotterdam's criteria who had received two to three failures of IUI cycle therapy were included. The diagnosis was based on a complete history taking, physical examination and a paper documented complete infertility work-up within the previous 6 months

You may not qualify if:

  • Patients diagnosed with hyperprolactinemia, diabetes mellitus, epilepsy
  • Patients treated with special diet, medication supplement (ovuboost), metformin before or during ovarian stimulation
  • History of pelvic surgery on ovaries and uterus.
  • Presence of submucosal and intramural fibroids larger than 5 cm or the presence of uterine polyps and congenital uterine malformations.
  • The cause of severe male infertility (TESE, PESA).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Royan Institute

Tehran, 16635148, Iran

Location

Related Publications (1)

  • Hafezi M, Arabipoor A, Ghaffari F, Vesali S, Zareei M, Hessari ZH. Adding L-carnitine to antagonist ovarian stimulation doesn't improve the outcomes of IVF/ ICSI cycle in patients with polycystic ovarian syndrome: a double-blind randomized clinical trial. J Ovarian Res. 2024 Jan 9;17(1):9. doi: 10.1186/s13048-023-01319-7.

MeSH Terms

Conditions

Polycystic Ovary Syndrome

Interventions

CarnitineQuaternary Ammonium Compounds

Condition Hierarchy (Ancestors)

Ovarian CystsCystsNeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesGonadal DisordersEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Trimethyl Ammonium CompoundsAminesOrganic ChemicalsAmmonium CompoundsNitrogen CompoundsInorganic ChemicalsOnium Compounds

Study Officials

  • Maryam Hafezi, MD.

    Department of Endocrinology and Female Infertility, Royan Institute

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
L-carnitine and placebo drugs can be identified only by special codes determined by a statistics specialist. The participant, care provider, investigator and outcome assessor are unaware of the type of study groups.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 13, 2020

First Posted

December 17, 2020

Study Start

March 1, 2020

Primary Completion

December 29, 2022

Study Completion

February 28, 2023

Last Updated

June 18, 2023

Record last verified: 2023-06

Locations