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Impact of Duloxetine on Male Fertility

Impact of Duloxetine on Male Fertility

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03038867
Enrollment
69
Registered
2017-02-01
Start date
2016-12-12
Completion date
2018-08-31
Last updated
2020-03-12

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

Conditions

Depression, Infertility, Male

Brief summary

The investigators are conducting a placebo-controlled, randomized control trial with duloxetine in healthy, fertile men not previously on any antidepressants. Participants will be randomized to either the duloxetine or placebo groups for 6 weeks. The investigators will assess changes in sperm DNA fragmentation at 0, 2, 6, 8, and 10 weeks. Other outcomes measured will include semen parameters (sperm concentration, motility, morphology), hormone levels (testosterone, estrogen, prolactin, LH, FSH), and sexual function (IIEF and MSHQ) surveys.

Detailed description

Antidepressant medications are commonly prescribed in the USA not only for depression, but also for anxiety disorders such as generalized anxiety disorder and obsessive-compulsive disorder, premature ejaculation, post-traumatic stress disorder, and neuropathic pain. Despite being widely prescribed in the United States in men of reproductive age, the impact of antidepressants on fertility has not been extensively studied. After noticing worsened semen parameters in men on anti-depressants, the investigators performed the first prospective study to demonstrate a deleterious impact of selective serotonin reuptake inhibitors (SSRI) on sperm DNA integrity, which has been linked to reproductive outcomes. Further small studies have corroborated the negative impact of SSRIs on male fertility, as assessed by semen parameters and/or sperm DNA integrity. No studies have examined the impact of a newer, but similar, class of antidepressant - the serotonin-norepinephrine reuptake inhibitor (SNRI). Like SSRIs, SNRIs inhibit the reuptake of serotonin, but also act on norepinephrine. The use of SNRIs has increased recently due to their slightly improved efficacy profile when compared to SSRIs. Duloxetine is an SNRI and is one of the most commonly prescribed anti-depressants in the United States. The investigators are conducting this trial to determine whether or not the administration of duloxetine will result in a deterioration in sperm DNA fragmentation in healthy, fertile men.

Interventions

DRUGDuloxetine

Duloxetine orally 60mg daily for 5 weeks, then taper to 30mg daily for 1 week

DRUGPlacebo

Placebo orally 2 tabs daily for 5 weeks, then taper to 1 tab daily for 1 week

Sponsors

Weill Medical College of Cornell University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

Participant, investigator, and outcomes assessor are all blinded to participant's assigned group.

Intervention model description

Blinded, placebo-controlled, randomized controlled trial

Eligibility

Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy men aged 18-65 years old; * normal or borderline semen analysis (sperm concentration \> 10 million/mL, sperm motility \> 30%, sperm morphology \> 3%); * willing to engage in sexual activity (alone or with a partner) at least once per week for the duration of the study; * capable of providing semen sample.

Exclusion criteria

* Clinically detected varicocele; * oligoasthenoteratospermia or azoospermia on semen analysis; * ongoing attempts to initiate pregnancy; * current sexual dysfunction (classified as moderate or worse on IIEF); * history of seizure disorder; * history of previous chemotherapy or radiation therapy; * current psychiatric history or history of bipolar disorder; * family history of bipolar disorder, depression, or suicide; * use of any psychotropic medications or anticonvulsants; * use of sleeping pills more than once per week; * use of any hormonal medications on a daily or intermittent basis during the preceding 3 months; * use of medications which may affect hormone measures and/or sexual function; * inability to read, follow instructions, or complete questionnaires in English; * consumption of tobacco or illicit drugs; * consumption of \>2oz of alcohol daily.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Abnormal Sperm DNA Fragmentation at 6 Weeks6 Weeks (primary time point of interest)Number of participants with TUNEL values \> 25% at 6 weeks in each treatment group
Number of Participants With Abnormal Sperm DNA Fragmentation at 0 Weeks0 weeksNumber of participants with Tunel Values \> 25% at 0 Weeks (baseline) in each treatment group
Number of Participants With Abnormal Sperm DNA Fragmentation at 2 Weeks2 weeksNumber of participants with Tunel values \> 25% at 2 weeks in each treatment group
Number of Participants With Abnormal Sperm DNA Fragmentation at 8 Weeks8 weeksNumber of participants with Tunel values \> 25% at 8 weeks in each treatment group
Number of Participants With Abnormal Sperm DNA Fragmentation at 10 Weeks10 WeeksNumber of participants with Tunel values \> 25% at 10 weeks in each treatment group

Secondary

MeasureTime frameDescription
Sperm Tail Defects at 10 Weeks10 WeeksSperm tail defects (mean number) at 10 weeks
Testosterone Level at 0 Weeks0 weeksTestosterone level (ng/dL) at 0 weeks
Testosterone Level at 2 Weeks2 weeksTestosterone level (ng/dL) at 2 weeks
Testosterone Level at 6 Weeks6 weeksTestosterone level (ng/dL) at 6 weeks
Testosterone Level at 8 Weeks8 weeksTestosterone level (ng/dL) at 8 weeks
Testosterone Level at 10 Weeks10 WeeksTestosterone level (ng/dL) at 10 weeks
Estrogen Level at 0 Weeks0 weeksEstrogen level (pg/mL) at 0 weeks
Estrogen Level at 2 Weeks2 weeksEstrogen level (pg/mL) at 2 weeks
Estrogen Level at 6 Weeks6 weeksEstrogen level (pg/mL) at 6 weeks
Estrogen Level at 8 Weeks8 weeksEstrogen level (pg/mL) at 8 weeks
Sperm Concentration at 0 Weeks0 weeksSperm concentration (number of sperm/mL) in semen analysis at 0 weeks
Sperm Concentration at 2 Weeks2 weeksSperm concentration (number of sperm/mL) in semen analysis at 2 weeks
Sperm Concentration at 6 Weeks6 weeksSperm concentration (number of sperm/mL) in semen analysis at 6 weeks
Sperm Concentration at 8 Weeks8 weeksSperm concentration (number of sperm/mL) in semen analysis at 8 weeks
Sperm Concentration at 10 Weeks10 WeeksSperm concentration (number of sperm/mL) in semen analysis at 10 weeks
Sperm Motility at 0 Weeks0 weeksSperm motility (mean percent) at 0 weeks
Sperm Motility at 2 Weeks2 weeksSperm motility (mean percent) at 2 weeks
Sperm Motility at 6 Weeks6 weeksSperm motility (mean percent) at 6 weeks
Sperm Motility at 8 Weeks8 weeksSperm motility (mean percent) at 8 weeks
Sperm Motility at 10 Weeks10 WeeksSperm motility (mean percent) at 10 weeks
Sperm Head Defects at 0 Weeks0 weeksSperm head defects (mean number) at 0 weeks
Sperm Head Defects at 2 Weeks2 weeksSperm head defects (mean number) at 2 weeks
Sperm Head Defects at 6 Weeks6 weeksSperm head defects (mean number) at 6 weeks
Sperm Head Defects at 8 Weeks8 weeksSperm head defects (mean number) at 8 weeks
Sperm Head Defects at 10 Weeks10 WeeksSperm head defects (mean number) at 10 weeks
Sperm Neck Defects at 0 Weeks0 weeksSperm neck defects (mean number) at 0 weeks
Sperm Neck Defects at 2 Weeks2 weeksSperm neck defects (mean number) at 2 weeks
Sperm Neck Defects at 6 Weeks6 weeksSperm neck defects (mean number) at 6 weeks
Sperm Neck Defects at 8 Weeks8 weeksSperm neck defects (mean number) at 8 weeks
Estrogen Level at 10 Weeks10 WeeksEstrogen level (pg/mL) at 10 weeks
Prolactin Level at 0 Weeks0 weeksProlactin level (ng/mL) at 0 weeks
Prolactin Level at 2 Weeks2 weeksProlactin level (ng/mL) at 2 weeks
Prolactin Level at 6 Weeks6 weeksProlactin level (ng/mL) at 6 weeks
Prolactin Level at 8 Weeks8 weeksProlactin level (ng/mL) at 8 weeks
Prolactin Level at 10 Weeks10 WeeksProlactin level (ng/mL) at 10 weeks
Luteinizing Hormone Level at 0 Weeks0 weeksLuteinizing hormone level (mIU/mL) at 0 weeks
Luteinizing Hormone Level at 2 Weeks2 weeksLuteinizing hormone level (mIU/mL) at 2 weeks
Luteinizing Hormone Level at 6 Weeks6 weeksLuteinizing hormone level (mIU/mL) at 6 weeks
Luteinizing Hormone Level at 8 Weeks8 weeksLuteinizing hormone level (mIU/mL) at 8 weeks
Luteinizing Hormone Level at 10 Weeks10 WeeksLuteinizing hormone level (mIU/mL) at 10 weeks
Follicle Stimulating Hormone Level at 0 Weeks0 weeksFollicle stimulating hormone level (mIU/mL) at 0 weeks
Follicle Stimulating Hormone Level at 2 Weeks2 weeksFollicle stimulating hormone level (mIU/mL) at 2 weeks
Follicle Stimulating Hormone Level at 6 Weeks6 weeksFollicle stimulating hormone level (mIU/mL) at 6 weeks
Sperm Neck Defects at 10 Weeks10 WeeksSperm neck defects (mean number) at 10 weeks
Follicle Stimulating Hormone Level at 10 Weeks10 WeeksFollicle stimulating hormone level (mIU/mL) at 10 weeks
Follicle Stimulating Hormone Level at 8 Weeks8 weeksFollicle stimulating hormone level (mIU/mL) at 8 weeks
Sperm Tail Defects at 0 Weeks0 weeksSperm tail defects (mean number) at 0 weeks
Sperm Tail Defects at 2 Weeks2 weeksSperm tail defects (mean number) at 2 weeks
Sperm Tail Defects at 6 Weeks6 weeksSperm tail defects (mean number) at 6 weeks
Sperm Tail Defects at 8 Weeks8 weeksSperm tail defects (mean number) at 8 weeks

Countries

United States

Participant flow

Participants by arm

ArmCount
Duloxetine
Duloxetine orally 60mg daily for 5 weeks, then taper to 30mg daily for 1 week Duloxetine: Duloxetine orally 60mg daily for 5 weeks, then taper to 30mg daily for 1 week
37
Placebo
Placebo Placebo: Placebo orally 2 tabs daily for 5 weeks, then taper to 1 tab daily for 1 week
32
Total69

Baseline characteristics

CharacteristicPlaceboTotalDuloxetine
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
32 Participants69 Participants37 Participants
Race and Ethnicity Not Collectedโ€”0 Participantsโ€”
Region of Enrollment
United States
32 Participants69 Participants37 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
32 Participants69 Participants37 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 370 / 32
other
Total, other adverse events
0 / 370 / 32
serious
Total, serious adverse events
0 / 370 / 32

Outcome results

Primary

Number of Participants With Abnormal Sperm DNA Fragmentation at 0 Weeks

Number of participants with Tunel Values \> 25% at 0 Weeks (baseline) in each treatment group

Time frame: 0 weeks

Population: 5 patients in the Duloxetine group did not have Tunel data measured at 0 weeks (patients were not available)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DuloxetineNumber of Participants With Abnormal Sperm DNA Fragmentation at 0 Weeks0 Participants
PlaceboNumber of Participants With Abnormal Sperm DNA Fragmentation at 0 Weeks0 Participants
Primary

Number of Participants With Abnormal Sperm DNA Fragmentation at 10 Weeks

Number of participants with Tunel values \> 25% at 10 weeks in each treatment group

Time frame: 10 Weeks

Population: 18 patients in the Duloxetine group and 4 patients in the Placebo group did not have Tunel data at 10 weeks (patients were not available).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DuloxetineNumber of Participants With Abnormal Sperm DNA Fragmentation at 10 Weeks0 Participants
PlaceboNumber of Participants With Abnormal Sperm DNA Fragmentation at 10 Weeks2 Participants
Primary

Number of Participants With Abnormal Sperm DNA Fragmentation at 2 Weeks

Number of participants with Tunel values \> 25% at 2 weeks in each treatment group

Time frame: 2 weeks

Population: 12 patients in the Duloxetine group and 2 patients in the Placebo group did not have Tunel data at 2 weeks (patients were not available).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DuloxetineNumber of Participants With Abnormal Sperm DNA Fragmentation at 2 Weeks1 Participants
PlaceboNumber of Participants With Abnormal Sperm DNA Fragmentation at 2 Weeks2 Participants
Primary

Number of Participants With Abnormal Sperm DNA Fragmentation at 6 Weeks

Number of participants with TUNEL values \> 25% at 6 weeks in each treatment group

Time frame: 6 Weeks (primary time point of interest)

Population: 11 patients in the Duloxetine group and 7 patients in the Placebo group did not have Tunel data measured at 6 weeks (patients were not available).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DuloxetineNumber of Participants With Abnormal Sperm DNA Fragmentation at 6 Weeks0 Participants
PlaceboNumber of Participants With Abnormal Sperm DNA Fragmentation at 6 Weeks2 Participants
Primary

Number of Participants With Abnormal Sperm DNA Fragmentation at 8 Weeks

Number of participants with Tunel values \> 25% at 8 weeks in each treatment group

Time frame: 8 weeks

Population: 15 patients in the Duloxetine group and 4 patients in the Placebo group did not have Tunel data at 8 weeks (patients were not available).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
DuloxetineNumber of Participants With Abnormal Sperm DNA Fragmentation at 8 Weeks1 Participants
PlaceboNumber of Participants With Abnormal Sperm DNA Fragmentation at 8 Weeks0 Participants
Secondary

Estrogen Level at 0 Weeks

Estrogen level (pg/mL) at 0 weeks

Time frame: 0 weeks

Population: 6 patients in the Duloxetine group and 3 patients in the Placebo group did not have estrogen measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineEstrogen Level at 0 Weeks51.8 pg/mLStandard Deviation 39.4
PlaceboEstrogen Level at 0 Weeks58.5 pg/mLStandard Deviation 51.9
Secondary

Estrogen Level at 10 Weeks

Estrogen level (pg/mL) at 10 weeks

Time frame: 10 Weeks

Population: 23 patients in the Duloxetine group and 8 patients in the Placebo group did not have estrogen measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineEstrogen Level at 10 Weeks31.7 pg/mLStandard Deviation 12.2
PlaceboEstrogen Level at 10 Weeks133 pg/mLStandard Deviation 467
Secondary

Estrogen Level at 2 Weeks

Estrogen level (pg/mL) at 2 weeks

Time frame: 2 weeks

Population: 16 patients in the Duloxetine group did not have estrogen measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineEstrogen Level at 2 Weeks53.0 pg/mLStandard Deviation 37.6
PlaceboEstrogen Level at 2 Weeks44.4 pg/mLStandard Deviation 25.7
Secondary

Estrogen Level at 6 Weeks

Estrogen level (pg/mL) at 6 weeks

Time frame: 6 weeks

Population: 16 patients in the Duloxetine group and 5 patients in the Placebo group did not have estrogen measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineEstrogen Level at 6 Weeks45.8 pg/mLStandard Deviation 30.7
PlaceboEstrogen Level at 6 Weeks43.5 pg/mLStandard Deviation 28.2
Secondary

Estrogen Level at 8 Weeks

Estrogen level (pg/mL) at 8 weeks

Time frame: 8 weeks

Population: 17 patients in the Duloxetine group and 6 patients in the Placebo group did not have testosterone measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineEstrogen Level at 8 Weeks49.3 pg/mLStandard Deviation 31.9
PlaceboEstrogen Level at 8 Weeks39.0 pg/mLStandard Deviation 24.8
Secondary

Follicle Stimulating Hormone Level at 0 Weeks

Follicle stimulating hormone level (mIU/mL) at 0 weeks

Time frame: 0 weeks

Population: 5 patients in the Duloxetine group and 1 patient in the Placebo group did not have FSH measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineFollicle Stimulating Hormone Level at 0 Weeks6.56 mIU/mLStandard Deviation 12.3
PlaceboFollicle Stimulating Hormone Level at 0 Weeks5.26 mIU/mLStandard Deviation 4.3
Secondary

Follicle Stimulating Hormone Level at 10 Weeks

Follicle stimulating hormone level (mIU/mL) at 10 weeks

Time frame: 10 Weeks

Population: 23 patients in the Duloxetine group and 6 patients in the Placebo group did not have FSH measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineFollicle Stimulating Hormone Level at 10 Weeks5.54 mIU/mLStandard Deviation 5.44
PlaceboFollicle Stimulating Hormone Level at 10 Weeks5.95 mIU/mLStandard Deviation 5.43
Secondary

Follicle Stimulating Hormone Level at 2 Weeks

Follicle stimulating hormone level (mIU/mL) at 2 weeks

Time frame: 2 weeks

Population: 9 patients in the Duloxetine group and 1 patient in the Placebo group did not have FSH measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineFollicle Stimulating Hormone Level at 2 Weeks5.56 mIU/mLStandard Deviation 5.86
PlaceboFollicle Stimulating Hormone Level at 2 Weeks5.30 mIU/mLStandard Deviation 4.27
Secondary

Follicle Stimulating Hormone Level at 6 Weeks

Follicle stimulating hormone level (mIU/mL) at 6 weeks

Time frame: 6 weeks

Population: 16 patients in the Duloxetine group and 2 patients in the Placebo group did not have FSH measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineFollicle Stimulating Hormone Level at 6 Weeks4.57 mIU/mLStandard Deviation 5.71
PlaceboFollicle Stimulating Hormone Level at 6 Weeks5.14 mIU/mLStandard Deviation 4.39
Secondary

Follicle Stimulating Hormone Level at 8 Weeks

Follicle stimulating hormone level (mIU/mL) at 8 weeks

Time frame: 8 weeks

Population: 15 patients in the Duloxetine group and 4 patients in the Placebo group did not have FSH measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineFollicle Stimulating Hormone Level at 8 Weeks4.18 mIU/mLStandard Deviation 3.97
PlaceboFollicle Stimulating Hormone Level at 8 Weeks5.29 mIU/mLStandard Deviation 3.71
Secondary

Luteinizing Hormone Level at 0 Weeks

Luteinizing hormone level (mIU/mL) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have LH measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineLuteinizing Hormone Level at 0 Weeks4.11 mIU/mLStandard Deviation 4.98
PlaceboLuteinizing Hormone Level at 0 Weeks3.37 mIU/mLStandard Deviation 1.72
Secondary

Luteinizing Hormone Level at 10 Weeks

Luteinizing hormone level (mIU/mL) at 10 weeks

Time frame: 10 Weeks

Population: 22 patients in the Duloxetine group and 5 patients in the Placebo group did not have LH measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineLuteinizing Hormone Level at 10 Weeks4.98 mIU/mLStandard Deviation 6.4
PlaceboLuteinizing Hormone Level at 10 Weeks3.78 mIU/mLStandard Deviation 1.48
Secondary

Luteinizing Hormone Level at 2 Weeks

Luteinizing hormone level (mIU/mL) at 2 weeks

Time frame: 2 weeks

Population: 8 patients in the Duloxetine group did not have LH measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineLuteinizing Hormone Level at 2 Weeks4.00 mIU/mLStandard Deviation 5.47
PlaceboLuteinizing Hormone Level at 2 Weeks3.57 mIU/mLStandard Deviation 1.55
Secondary

Luteinizing Hormone Level at 6 Weeks

Luteinizing hormone level (mIU/mL) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 1 patient in the Placebo group did not have LH measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineLuteinizing Hormone Level at 6 Weeks4.51 mIU/mLStandard Deviation 5.92
PlaceboLuteinizing Hormone Level at 6 Weeks3.42 mIU/mLStandard Deviation 1.43
Secondary

Luteinizing Hormone Level at 8 Weeks

Luteinizing hormone level (mIU/mL) at 8 weeks

Time frame: 8 weeks

Population: 13 patients in the Duloxetine group and 2 patients in the Placebo group did not have LH measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineLuteinizing Hormone Level at 8 Weeks4.18 mIU/mLStandard Deviation 5.5
PlaceboLuteinizing Hormone Level at 8 Weeks3.70 mIU/mLStandard Deviation 1.42
Secondary

Prolactin Level at 0 Weeks

Prolactin level (ng/mL) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have prolactin measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineProlactin Level at 0 Weeks11.9 ng/mLStandard Deviation 5.78
PlaceboProlactin Level at 0 Weeks12.4 ng/mLStandard Deviation 4.85
Secondary

Prolactin Level at 10 Weeks

Prolactin level (ng/mL) at 10 weeks

Time frame: 10 Weeks

Population: 20 patients in the Duloxetine group and 5 patients in the Placebo group did not have prolactin measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineProlactin Level at 10 Weeks8.83 ng/mLStandard Deviation 3.31
PlaceboProlactin Level at 10 Weeks11.6 ng/mLStandard Deviation 6.14
Secondary

Prolactin Level at 2 Weeks

Prolactin level (ng/mL) at 2 weeks

Time frame: 2 weeks

Population: 8 patients in the Duloxetine group did not have prolactin measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineProlactin Level at 2 Weeks9.74 ng/dLStandard Deviation 3.69
PlaceboProlactin Level at 2 Weeks11.3 ng/dLStandard Deviation 6.01
Secondary

Prolactin Level at 6 Weeks

Prolactin level (ng/mL) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 1 patient in the Placebo group did not have prolactin measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineProlactin Level at 6 Weeks10.3 ng/mLStandard Deviation 5.05
PlaceboProlactin Level at 6 Weeks9.60 ng/mLStandard Deviation 6.01
Secondary

Prolactin Level at 8 Weeks

Prolactin level (ng/mL) at 8 weeks

Time frame: 8 weeks

Population: 12 patients in the Duloxetine group and 2 patients in the Placebo group did not have prolactin measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineProlactin Level at 8 Weeks10.1 ng/mLStandard Deviation 4.91
PlaceboProlactin Level at 8 Weeks8.98 ng/mLStandard Deviation 3.66
Secondary

Sperm Concentration at 0 Weeks

Sperm concentration (number of sperm/mL) in semen analysis at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have sperm concentration measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Concentration at 0 Weeks57.4 Number of sperm/mLStandard Deviation 40.3
PlaceboSperm Concentration at 0 Weeks50.2 Number of sperm/mLStandard Deviation 33.4
Secondary

Sperm Concentration at 10 Weeks

Sperm concentration (number of sperm/mL) in semen analysis at 10 weeks

Time frame: 10 Weeks

Population: 16 patients in the Duloxetine group and 2 patients in the Placebo group did not have sperm concentration measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Concentration at 10 Weeks42.0 Number of sperm/mLStandard Deviation 26.3
PlaceboSperm Concentration at 10 Weeks42.7 Number of sperm/mLStandard Deviation 26
Secondary

Sperm Concentration at 2 Weeks

Sperm concentration (number of sperm/mL) in semen analysis at 2 weeks

Time frame: 2 weeks

Population: 10 patients in the Duloxetine group and 2 patients in the Placebo group did not have sperm concentration measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Concentration at 2 Weeks48.9 Number of sperm/mLStandard Deviation 38.7
PlaceboSperm Concentration at 2 Weeks50.0 Number of sperm/mLStandard Deviation 41.4
Secondary

Sperm Concentration at 6 Weeks

Sperm concentration (number of sperm/mL) in semen analysis at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 5 patients in the Placebo group did not have sperm concentration measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Concentration at 6 Weeks44.6 Number of sperm/mLStandard Deviation 24.2
PlaceboSperm Concentration at 6 Weeks43.9 Number of sperm/mLStandard Deviation 32.5
Secondary

Sperm Concentration at 8 Weeks

Sperm concentration (number of sperm/mL) in semen analysis at 8 weeks

Time frame: 8 weeks

Population: 14 patients in the Duloxetine group and 2 patients in the Placebo group did not have sperm concentration measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Concentration at 8 Weeks45.7 Number of sperm/mLStandard Deviation 29.8
PlaceboSperm Concentration at 8 Weeks47.1 Number of sperm/mLStandard Deviation 28.7
Secondary

Sperm Head Defects at 0 Weeks

Sperm head defects (mean number) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have head defects measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Head Defects at 0 Weeks88.4 defectsStandard Deviation 16
PlaceboSperm Head Defects at 0 Weeks89.9 defectsStandard Deviation 8.11
Secondary

Sperm Head Defects at 10 Weeks

Sperm head defects (mean number) at 10 weeks

Time frame: 10 Weeks

Population: 15 patients in the Duloxetine group and 3 patients in the Placebo group did not have head defects measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Head Defects at 10 Weeks90.8 defectsStandard Deviation 5.65
PlaceboSperm Head Defects at 10 Weeks88.3 defectsStandard Deviation 16.6
Secondary

Sperm Head Defects at 2 Weeks

Sperm head defects (mean number) at 2 weeks

Time frame: 2 weeks

Population: 11 patients in the Duloxetine group and 2 patients in the Placebo group did not have head defects measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Head Defects at 2 Weeks91.5 defectsStandard Deviation 4.02
PlaceboSperm Head Defects at 2 Weeks90.7 defectsStandard Deviation 7.86
Secondary

Sperm Head Defects at 6 Weeks

Sperm head defects (mean number) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 5 patients in the Placebo group did not have head defects measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Head Defects at 6 Weeks91.6 defectsStandard Deviation 4.38
PlaceboSperm Head Defects at 6 Weeks91.3 defectsStandard Deviation 10.1
Secondary

Sperm Head Defects at 8 Weeks

Sperm head defects (mean number) at 8 weeks

Time frame: 8 weeks

Population: 13 patients in the Duloxetine group and 2 patients in the Placebo group did not have head defects measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Head Defects at 8 Weeks92.3 defectsStandard Deviation 4.54
PlaceboSperm Head Defects at 8 Weeks88.7 defectsStandard Deviation 15.1
Secondary

Sperm Motility at 0 Weeks

Sperm motility (mean percent) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have motility measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Motility at 0 Weeks61.7 percent motilityStandard Deviation 9.5
PlaceboSperm Motility at 0 Weeks59.7 percent motilityStandard Deviation 11.4
Secondary

Sperm Motility at 10 Weeks

Sperm motility (mean percent) at 10 weeks

Time frame: 10 Weeks

Population: 15 patients in the Duloxetine group and 3 patients in the Placebo group did not have motility measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Motility at 10 Weeks54.4 percent motilityStandard Deviation 17.4
PlaceboSperm Motility at 10 Weeks53.9 percent motilityStandard Deviation 19.7
Secondary

Sperm Motility at 2 Weeks

Sperm motility (mean percent) at 2 weeks

Time frame: 2 weeks

Population: 11 patients in the Duloxetine group and 2 patients in the Placebo group did not have motility measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Motility at 2 Weeks54.3 percent motilityStandard Deviation 13.3
PlaceboSperm Motility at 2 Weeks55.2 percent motilityStandard Deviation 13.4
Secondary

Sperm Motility at 6 Weeks

Sperm motility (mean percent) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 5 patients in the Placebo group did not have motility measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Motility at 6 Weeks57.2 percent motilityStandard Deviation 11.2
PlaceboSperm Motility at 6 Weeks50.4 percent motilityStandard Deviation 20.6
Secondary

Sperm Motility at 8 Weeks

Sperm motility (mean percent) at 8 weeks

Time frame: 8 weeks

Population: 13 patients in the Duloxetine group and 2 patients in the Placebo group did not have motility measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Motility at 8 Weeks51.1 percent motilityStandard Deviation 18.6
PlaceboSperm Motility at 8 Weeks58.5 percent motilityStandard Deviation 12.1
Secondary

Sperm Neck Defects at 0 Weeks

Sperm neck defects (mean number) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have neck defects measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Neck Defects at 0 Weeks1.36 defectsStandard Deviation 2.97
PlaceboSperm Neck Defects at 0 Weeks2.55 defectsStandard Deviation 4.47
Secondary

Sperm Neck Defects at 10 Weeks

Sperm neck defects (mean number) at 10 weeks

Time frame: 10 Weeks

Population: 15 patients in the Duloxetine group and 3 patients in the Placebo group did not have neck defects measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Neck Defects at 10 Weeks0.91 defectsStandard Deviation 2.72
PlaceboSperm Neck Defects at 10 Weeks1.55 defectsStandard Deviation 3.93
Secondary

Sperm Neck Defects at 2 Weeks

Sperm neck defects (mean number) at 2 weeks

Time frame: 2 weeks

Population: 11 patients in the Duloxetine group and 2 patients in the Placebo group did not have neck defects measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Neck Defects at 2 Weeks2.65 defectsStandard Deviation 5.83
PlaceboSperm Neck Defects at 2 Weeks1.00 defectsStandard Deviation 3.04
Secondary

Sperm Neck Defects at 6 Weeks

Sperm neck defects (mean number) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 11 patients in the Placebo group did not have neck defects measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Neck Defects at 6 Weeks1.12 defectsStandard Deviation 4.35
PlaceboSperm Neck Defects at 6 Weeks0.62 defectsStandard Deviation 1.96
Secondary

Sperm Neck Defects at 8 Weeks

Sperm neck defects (mean number) at 8 weeks

Time frame: 8 weeks

Population: 14 patients in the Duloxetine group and 2 patients in the Placebo group did not have neck defects measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Neck Defects at 8 Weeks1.17 defectsStandard Deviation 2.66
PlaceboSperm Neck Defects at 8 Weeks0.50 defectsStandard Deviation 1.61
Secondary

Sperm Tail Defects at 0 Weeks

Sperm tail defects (mean number) at 0 weeks

Time frame: 0 weeks

Population: 6 patients in the Duloxetine group and 4 patients in the Placebo group did not have tail defects measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Tail Defects at 0 Weeks0.13 defectsStandard Deviation 0.72
PlaceboSperm Tail Defects at 0 Weeks1.89 defectsStandard Deviation 7.86
Secondary

Sperm Tail Defects at 10 Weeks

Sperm tail defects (mean number) at 10 weeks

Time frame: 10 Weeks

Population: 15 patients in the Duloxetine group and 4 patients in the Placebo group did not have tail defects measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Tail Defects at 10 Weeks1.09 defectsStandard Deviation 5.12
PlaceboSperm Tail Defects at 10 Weeks0.96 defectsStandard Deviation 3.67
Secondary

Sperm Tail Defects at 2 Weeks

Sperm tail defects (mean number) at 2 weeks

Time frame: 2 weeks

Population: 16 patients in the Duloxetine group and 3 patients in the Placebo group did not have tail defects measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Tail Defects at 2 Weeks0.00 defectsStandard Deviation 0
PlaceboSperm Tail Defects at 2 Weeks1.66 defectsStandard Deviation 7.52
Secondary

Sperm Tail Defects at 6 Weeks

Sperm tail defects (mean number) at 6 weeks

Time frame: 6 weeks

Population: 11 patients in the Duloxetine group and 7 patients in the Placebo group did not have tail defects measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Tail Defects at 6 Weeks0.04 defectsStandard Deviation 0.2
PlaceboSperm Tail Defects at 6 Weeks2.64 defectsStandard Deviation 11
Secondary

Sperm Tail Defects at 8 Weeks

Sperm tail defects (mean number) at 8 weeks

Time frame: 8 weeks

Population: 14 patients in the Duloxetine group and 4 patients in the Placebo group did not have tail defects measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineSperm Tail Defects at 8 Weeks0.35 defectsStandard Deviation 1.3
PlaceboSperm Tail Defects at 8 Weeks1.25 defectsStandard Deviation 3.74
Secondary

Testosterone Level at 0 Weeks

Testosterone level (ng/dL) at 0 weeks

Time frame: 0 weeks

Population: 3 patients in the Duloxetine group did not have testosterone measured at 0 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineTestosterone Level at 0 Weeks464 ng/dLStandard Deviation 165
PlaceboTestosterone Level at 0 Weeks448 ng/dLStandard Deviation 160
Secondary

Testosterone Level at 10 Weeks

Testosterone level (ng/dL) at 10 weeks

Time frame: 10 Weeks

Population: 21 patients in the Duloxetine group and 8 patients in the Placebo group did not have testosterone measured at 10 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineTestosterone Level at 10 Weeks445 ng/dLStandard Deviation 165
PlaceboTestosterone Level at 10 Weeks509 ng/dLStandard Deviation 167
Secondary

Testosterone Level at 2 Weeks

Testosterone level (ng/dL) at 2 weeks

Time frame: 2 weeks

Population: 8 patients in the Duloxetine group did not have testosterone measured at 2 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineTestosterone Level at 2 Weeks431 ng/dLStandard Deviation 126
PlaceboTestosterone Level at 2 Weeks482 ng/dLStandard Deviation 171
Secondary

Testosterone Level at 6 Weeks

Testosterone level (ng/dL) at 6 weeks

Time frame: 6 weeks

Population: 12 patients in the Duloxetine group and 2 patients in the Placebo group did not have testosterone measured at 6 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineTestosterone Level at 6 Weeks485 ng/dLStandard Deviation 170
PlaceboTestosterone Level at 6 Weeks438 ng/dLStandard Deviation 174
Secondary

Testosterone Level at 8 Weeks

Testosterone level (ng/dL) at 8 weeks

Time frame: 8 weeks

Population: 12 patients in the Duloxetine group and 4 patients in the Placebo group did not have testosterone measured at 8 weeks (patients were not available).

ArmMeasureValue (MEAN)Dispersion
DuloxetineTestosterone Level at 8 Weeks534 ng/dLStandard Deviation 237
PlaceboTestosterone Level at 8 Weeks460 ng/dLStandard Deviation 144

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