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Males, Antioxidants, and Infertility Trial

Males, Antioxidants, and Infertility (MOXI) Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02421887
Acronym
MOXI
Enrollment
171
Registered
2015-04-21
Start date
2015-12-31
Completion date
2018-12-31
Last updated
2019-09-04

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

Conditions

Male Infertility

Brief summary

The objective of the Males, Antioxidants, and Infertility (MOXI) Trial is to examine whether treatment of infertile males with an antioxidant formulation improves male fertility. The central hypothesis is that treatment of infertile males with antioxidants will improve sperm structure and function, resulting in higher fertilization rates and improved embryo development, leading to higher pregnancy and live birth rates. Findings from this research will be significant in that they will likely lead to an effective, non-hormonal treatment modality for male infertility. An effective treatment for men would also reduce the treatment burden on the female partner, lower costs, and provide effective alternatives to couples with religious or ethical contraindications to ART (Assisted Reproductive Technology). If antioxidants do not improve pregnancy rates, but do improve sperm motility and DNA integrity, they could allow for couples with male factor infertility to use less intensive therapies such as intrauterine insemination. Male fertility specialists currently prescribe antioxidants based on the limited data supporting their use. A negative finding, lack of any benefit, would also alter current treatment of infertile males.

Interventions

An antioxidant combination including Vitamin C, Vitamin E, folic acid, selenium, zinc, and L-carnitine

OTHERPlacebo

Placebo

Sponsors

University of North Carolina
CollaboratorOTHER
Augusta University
CollaboratorOTHER
Penn State University
CollaboratorOTHER
University of California, San Francisco
CollaboratorOTHER
University of Oklahoma
CollaboratorOTHER
University of Pennsylvania
CollaboratorOTHER
Yale University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Couple * 12 or more months of infertility (primary or secondary) * Heterosexual * Cohabitating and able to have regular intercourse Male: * ≥ 18 years of age * At least one abnormal semen parameter on a semen analysis within the past 6 months: * Sperm concentration ≤15 Million/ml * Total motility ≤40% * Normal morphology (Kruger) ≤4% * DNA fragmentation (SCSA, DNA fragmentation index) \>25% Female: * ≥18 years of age and ≤40 years of age * For women ≥ 35 years of age, evidence of normal ovarian reserve as assessed by menstrual cycle day 3 (+/-2 days) FSH ≤10 IU/L with estradiol ≤ 70 pg/mL, AMH ≥ 1.0 ng/mL, OR antral follicle count \>10 within one year prior to study initiation. * Evidence of at least one patent fallopian tube as determined by an hysterosalpingogram or laparoscopy showing at least one patent fallopian tube or a saline infusion sonogram showing spillage of contrast material * Regular cycles defined as ≥25 days and ≤35 days in duration * Evidence of ovulation including biphasic basal body temperatures, positive ovulation predictor kits, or progesterone level ≥3 ng/ml.

Exclusion criteria

* Couple: * Previous sterilization procedures (vasectomy, tubal ligation). The prior procedure may affect study outcomes. * Planning in vitro fertilization in the next 6 months Male: * Sperm concentration \< 5 million/mL on screening semen analysis * Current use of a medication or drug that would affect reproductive function or metabolism (see Appendix C for list) * Current multivitamin or herb use (requires 1 month wash-out) * Current serious medical illnesses, such as cancer, heart disease, or cirrhosis * Current use of anticoagulants * Untreated hypothyroidism * Uncontrolled diabetes mellitus Female: * History of surgically or medically confirmed moderate or severe endometriosis * Body mass index \>35 kg/m2 * Currently pregnant * History of polycystic ovarian syndrome * Current serious medical illnesses, such as cancer, heart disease, or cirrhosis * History of systemic chemotherapy or pelvic radiation * Current use of a medication or drug that would affect reproductive function or metabolism

Design outcomes

Primary

MeasureTime frame
Live Birth Rateup to 15 months

Secondary

MeasureTime frameDescription
Miscarriage Rateup to 9 monthsmiscarriages per total number of pregnancies
Time to Pregnancyup to 7 monthsTime to pregnancy will be the chronologic time from randomization to pregnancy detection in days, in which the pregnancy is defined as a human Chorionic Gonadotropin (hCG) value over 5 on 2 separate occasions.
Change in Total Motile Sperm Countbaseline and 3 monthsSamples will be assessed using a standard semen analysis
Change in Deoxyribonucleic Acid (DNA) Fragmentation Index (DFI)Baseline and 3 monthsDFI is the ratio of damaged sperm to total sperm. It is measured using Sperm Chromatin Structure Analysis (SCSA) which was performed on 5000 sperm per sample.
Pregnancy Rateup to 7 months
Change in Sperm Concentrationbaseline and 3 monthsSamples assessed using a standard semen analysis
Change in Normal Morphology of Semen, Using World Health Organization (WHO) 5 Criteriabaseline and 3 monthsSamples assessed using a standard semen analysis
Change in Total Sperm Countbaseline and 3 monthsSamples assessed using a standard semen analysis
Change in Semen Total Motilitybaseline and 3 monthsSamples assessed using a standard semen analysis

Countries

United States

Participant flow

Participants by arm

ArmCount
Antioxidant Supplement
Tablet: Vitamin C, 500 mg; Vitamin D3, 1000 IU; Vitamin E, 400 IU; Folic Acid 1000 mcg; Zinc, 20 mg; Selenium 200 mcg; Lycopene, 10 mg; Capsule: Vitamin D3, 1000 IU, L-Carnitine, 1000 mg Antioxidant Supplement: An antioxidant combination including Vitamin C, Vitamin E, folic acid, selenium, zinc, and L-carnitine
85
Placebo
Placebo: Placebo
86
Total171

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event20
Overall StudyLost to Follow-up50
Overall StudyPhysician Decision24
Overall StudyWithdrawal by Subject85

Baseline characteristics

CharacteristicPlaceboTotalAntioxidant Supplement
Age, Continuous34.0 years34.0 years34.0 years
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants12 Participants7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
78 Participants150 Participants72 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants9 Participants6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Asian
2 Participants9 Participants7 Participants
Race (NIH/OMB)
Black or African American
7 Participants13 Participants6 Participants
Race (NIH/OMB)
More than one race
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants13 Participants8 Participants
Race (NIH/OMB)
White
69 Participants132 Participants63 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
86 Participants171 Participants85 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 850 / 86
other
Total, other adverse events
28 / 8528 / 86
serious
Total, serious adverse events
0 / 850 / 86

Outcome results

Primary

Live Birth Rate

Time frame: up to 15 months

ArmMeasureValue (NUMBER)
Antioxidant SupplementLive Birth Rate15.3 percentage of live births
PlaceboLive Birth Rate22.1 percentage of live births
Secondary

Change in Deoxyribonucleic Acid (DNA) Fragmentation Index (DFI)

DFI is the ratio of damaged sperm to total sperm. It is measured using Sperm Chromatin Structure Analysis (SCSA) which was performed on 5000 sperm per sample.

Time frame: Baseline and 3 months

Population: Participants for which semen samples were analyzed for DFI at both Baseline and Month 3 visit are included in this outcome measure.

ArmMeasureValue (MEAN)
Antioxidant SupplementChange in Deoxyribonucleic Acid (DNA) Fragmentation Index (DFI)18.7 percentage of damaged DNA to total DNA
PlaceboChange in Deoxyribonucleic Acid (DNA) Fragmentation Index (DFI)21.1 percentage of damaged DNA to total DNA
Secondary

Change in Normal Morphology of Semen, Using World Health Organization (WHO) 5 Criteria

Samples assessed using a standard semen analysis

Time frame: baseline and 3 months

Population: Participants for whom semen samples were analyzed for morphology at both Baseline and Month 3 visit are included in this outcome measure.

ArmMeasureValue (MEDIAN)
Antioxidant SupplementChange in Normal Morphology of Semen, Using World Health Organization (WHO) 5 Criteria0 percentage of sperm with normal morpholo
PlaceboChange in Normal Morphology of Semen, Using World Health Organization (WHO) 5 Criteria0 percentage of sperm with normal morpholo
Secondary

Change in Semen Total Motility

Samples assessed using a standard semen analysis

Time frame: baseline and 3 months

ArmMeasureValue (MEAN)Dispersion
Antioxidant SupplementChange in Semen Total Motility-1.6 percentage of sperm with any motilityStandard Deviation 16
PlaceboChange in Semen Total Motility-1.1 percentage of sperm with any motilityStandard Deviation 13.7
Secondary

Change in Sperm Concentration

Samples assessed using a standard semen analysis

Time frame: baseline and 3 months

Population: Participants for which semen samples were analyzed at both Baseline and Month 3 visit are included in this outcome measure.

ArmMeasureValue (MEDIAN)
Antioxidant SupplementChange in Sperm Concentration-4.0 million sperm per mL
PlaceboChange in Sperm Concentration2.4 million sperm per mL
Secondary

Change in Total Motile Sperm Count

Samples will be assessed using a standard semen analysis

Time frame: baseline and 3 months

Population: Participants for which semen samples were analyzed at both Baseline and Month 3 visit are included in this outcome measure.

ArmMeasureValue (MEDIAN)
Antioxidant SupplementChange in Total Motile Sperm Count-4.0 million sperm per mL
PlaceboChange in Total Motile Sperm Count1.5 million sperm per mL
Secondary

Change in Total Sperm Count

Samples assessed using a standard semen analysis

Time frame: baseline and 3 months

Population: Participants for which semen samples were analyzed at both Baseline and Month 3 visit are included in this outcome measure.

ArmMeasureValue (MEDIAN)
Antioxidant SupplementChange in Total Sperm Count-10.6 million sperm per sample
PlaceboChange in Total Sperm Count1.6 million sperm per sample
Secondary

Miscarriage Rate

miscarriages per total number of pregnancies

Time frame: up to 9 months

Population: Miscarriage rate is calculated per number of participants who became pregnant.

ArmMeasureValue (NUMBER)
Antioxidant SupplementMiscarriage Rate4 miscarriages
PlaceboMiscarriage Rate5 miscarriages
Secondary

Pregnancy Rate

Time frame: up to 7 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Antioxidant SupplementPregnancy Rate18 Participants
PlaceboPregnancy Rate26 Participants
Secondary

Time to Pregnancy

Time to pregnancy will be the chronologic time from randomization to pregnancy detection in days, in which the pregnancy is defined as a human Chorionic Gonadotropin (hCG) value over 5 on 2 separate occasions.

Time frame: up to 7 months

Population: Time to pregnancy is calculated only for subjects who obtained pregnancy during the trial.

ArmMeasureValue (MEAN)Dispersion
Antioxidant SupplementTime to Pregnancy103.5 daysStandard Deviation 62.3
PlaceboTime to Pregnancy123.5 daysStandard Deviation 59.9

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026