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Melatonin Supplementation in Ovarian Response

Melatonin Supplementation in Ovarian Response: a Double-blind Randomized Controlled Trial on Follicular Fluid Melatonin Levels and Reproductive Outcomes in Infertile Women

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07343947
Enrollment
80
Registered
2026-01-15
Start date
2022-01-31
Completion date
2023-12-01
Last updated
2026-01-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertile Women Undergoing IVF or ICSI, Infertility, Infertility (IVF Patients)

Keywords

IVF, Infertile women, Melatonin, follicular fluid, ovarian response

Brief summary

Melatonin is a potent antioxidant, has been proposed to improve ovarian response and oocyte quality in assisted reproductive technologies (ART). This study evaluated the effects of melatonin supplementation on follicular fluid melatonin levels, hormonal profiles, and reproductive outcomes in women undergoing in vitro fertilization (IVF). Follicular fluid and serum melatonin levels, oocyte quality, embryo development, and pregnancy rates were assessed.

Detailed description

Background: Melatonin, a potent antioxidant, has been proposed to improve ovarian response and oocyte quality in assisted reproductive technologies (ART). This study evaluated the effects of melatonin supplementation on follicular fluid melatonin levels, hormonal profiles, and reproductive outcomes in women undergoing in vitro fertilization (IVF). Methods: In this double-blind, randomized controlled trial, 80 infertile women were allocated to receive either 5 mg melatonin nightly (n=40) or placebo (n=40) during ovarian stimulation. Follicular fluid and serum melatonin levels, oocyte quality, embryo development, and pregnancy rates were assessed. Statistical analyses included Mann-Whitney U tests for continuous variables and chi-square/Fisher's tests for categorical data.

Interventions

DRUG5mg melatonin supplementation

5 mg melatonin suplementation

OTHERSham (No Treatment)

Sham (no treatment)

Sponsors

University of Sao Paulo General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Infertile women aged 18-40 years * No previous infertility treatment * No previous hormonal treatment * No previous radio-chemotherapy treatment

Exclusion criteria

* Fertile women * Previous hormonal treatment * Previous radio-chemotherapy treatment

Design outcomes

Primary

MeasureTime frame
Follicular fluid melatonin concentrationBaseline (pre-intervention), periprocedurally and in the end of treatment at 7 weeks

Secondary

MeasureTime frameDescription
Reprodutive outcomesFrom the enrollment to the end of treatment at 7 weeks(1) oocyte maturation rate (MII/oocytes retrieved), (2) blastocyst formation rate, (3) implantation rate (gestational sacs per embryo transferred), and (4) clinical pregnancy rate (ultrasound-confirmed at 7 weeks).

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026