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NCT Number: NCT04349059

The Impact of Dietary Pattern on Erectile Function

The goal of this study is to determine whether erectile function is impacted by dietary patterns in healthy men with normal erectile function.

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Key information

Conditions

Erectile Dysfunction Genital Diseases Genital Diseases, Male Male Urogenital Diseases Mental Disorders Sexual Dysfunction, Physiological Sexual Dysfunctions, Psychological Urogenital Diseases

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Montefiore Medical Center, Department of Medicine, Division of Cardiology

The Bronx, New York, 10467, United States

Location status: Recruiting

Location contact

Robert J Ostfeld, MD, MS

CONTACT

[email protected]

718-920-8011

About this study

Visit 1:

After reviewing and signing consent, subjects will be screened for the study. Screening will consist of the following:

  • Complete International Index of Erectile Function (IIEF) questionnaire.
  • Record medical history, concomitant medications
  • Measure height and weight, calculate BMI
  • Vitals
  • Draw blood for total testosterone, sex hormone binding globulin and Thyroid Stimulating Hormone
  • Query subject regarding the presence of genital rash or lesions. Subjects will be asked, "do you have a rash or lesion on your penis or surrounding area?"

If the IIEF score is abnormal, subjects will be advised to contact their primary care provider.

Each subject will be contacted by phone with their blood results. If abnormal subject will be given the recommendation to contact his primary care provider.

If an abnormal finding is identified during screening, such as an abnormal STOP-bang score, subject will be given the recommendation to contact his primary care provider.

If the subject has no primary care provider, contact information for primary care will be given.

Subjects meeting inclusion and exclusion criteria will be randomized into the study, into either Sequence One or Sequence Two. Once enrolled, subjects will be asked to not modify their dietary habits throughout the duration of the study other than during the two evenings and two full days when food is provided (see below).

Sequence One:

Visit 2:

Subjects will return to the study center in the morning after having fasted (other than consuming water) since 11pm the night before. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be made. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

Subjects will be taught how to use the Rigiscan™ device. Subjects will receive one plant-based dinner (food will be provided by Montefiore-Einstein Food Services.) Subjects will then leave the study center and they will consume their usual diet until 5pm. For the rest of the evening until 11pm they will consume only the dinner provided. Water will be the only beverage allowed after 5pm. Dinner should be consumed at 8:30pm EST. Subjects will text pictures of everything they consume (eat or drink) after 5pm to Dr. Ostfeld or to a study representative and s/he will have text or verbal contact with the subject at least once that evening. That night, subjects will do a Rigiscan™ assessment overnight at their home. The time the subject goes to bed and the time the subject wakes up for the day should be recorded. The subject agrees to be in bed with Rigiscan™ on (other than for emergency or needed trips to the bathroom) for at least seven hours.

Visit 3 Subjects will return to the study center the morning after the Rigiscan™ assessment and bring the Rigiscan™ device with them. They will have been fasting other than drinking water since 11pm the night before. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be taken. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

Subjects will then receive one full day of plant-based meals (food will be provided by Montefiore-Einstein Food Services.) Subjects will be encouraged to eat breakfast at the study center after the initial anthropomorphic measures are made, saliva is obtained, and blood is drawn. Subjects will text pictures of all they consume during that day to Dr. Ostfeld and/or to a study representative and s/he will have text or verbal contact with the subject at least twice during that day. Dinner should be consumed at 8:30pm, EST. Subjects will fast other than water after 11pm. That night, subjects will do a Rigiscan™ assessment overnight at their home. Black coffee and/or tea is permitted only before noon. The time the subject goes to bed and the time the subject wakes up for the day should be recorded. The subject agrees to be in bed with Rigiscan™ on (other than for emergency or needed trips to the bathroom) for at least seven hours.

Visit 4 Subjects will return to the study center the morning after the Rigiscan™ assessment and bring the Rigiscan™ device with them. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be taken. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

There will then be a washout period for 8-12 days and subjects will be instructed to return to their usual dietary habits during this washout period. Number of days of the washout period will be recorded.

Visit 5 After the washout period, subjects will return to the study center in the morning after having fasted (other than consuming water) since 11pm the night before. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be taken. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

Subjects will receive one animal-based dinner (food will be provided by Montefiore-Einstein Food Services.) Subjects will then leave the study center and they will consume their usual diet until 5pm. For the rest of the evening until 11pm they will consume only the dinner provided. Water will be the only beverage consumed after 5pm. Dinner should be consumed at 8:30pm, EST. Subjects will text pictures of all they consume (eat or drink) after 5pm to Dr. Ostfeld or to a study representative and s/he will have text or verbal contact with the subject at least once that evening. Subjects will fast other than water after 11pm. That night, subjects will do a Rigiscan™ assessment overnight at their home. The time the subject goes to bed and the time the subject wakes up for the day should be recorded. The subject agrees to be in bed with Rigiscan™ on (other than for emergency or needed trips to the bathroom) for at least seven hours.

Visit 6 Subjects will return to the study center the morning after the Rigiscan™ assessment and bring the Rigiscan™ device with them. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be taken. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

Subjects will then receive one full day of animal-based meals (food will be provided by Montefiore-Einstein Food Services.) Subjects will be encouraged to eat breakfast at the study center after the initial anthropomorphic measures are made, saliva is obtained, and blood is drawn. Subjects will text pictures of all they consume during that day to Dr. Ostfeld and/or to a study representative and s/he will have text or verbal contact with the subject at least twice during that day. Dinner should be consumed at 8:30pm, EST. Subjects will fast other than water after 11pm. That night, subjects will do a Rigiscan™ assessment overnight at their home. Black coffee and/or tea is permitted only before noon. The time the subject goes to bed and the time the subject wakes up for the day should be recorded. The subject agrees to be in bed with Rigiscan™ on (other than for emergency or needed trips to the bathroom) for at least seven hours.

Visit 7 (End of Study) Subjects will return to the study center the morning after the Rigiscan™ assessment and bring the Rigiscan™ device with them. They will have been asked to not brush their teeth or use mouthwash and/or other breath fresheners that morning. Anthropomorphic and blood pressure and heart rate recordings will be taken. Saliva will be stored for NO measurement. Blood will be drawn and stored. Urine will be collected and stored.

Sequence Two:

Sequence Two is identical to Sequence One, except that the order of the plant-based and animal-based meals is reversed.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject provides written informed consent and HIPAA authorization in English before any study procedures are conducted.
  • Subject is taking no medical therapy other than: prn MDIs, medication(s) for anxiety, depression, and/or ADHD (these medications include, but are not limited to, SSRIs, SNRIs, Stimulants), no change in supplements if applicable.

The anxiety, depression, and/or ADHD will have been controlled (per report of subject) for the last 6 months.

  • IIEF score greater or equal to 22
  • Subject will have had penile-sexual intercourse (either vaginal or anal penetration) within 12 weeks of enrollment.
  • Male aged 18-35 years old
  • Lives within commuting distance of Montefiore Health System
  • Subject's significant other (if applicable) agrees to support the subject during the study
  • Subject agrees to photograph and share all items consumed/drunk during the dietary intervention
  • Subject agrees to avoid all illicit drugs, NSAIDS, and alcohol for at least two days prior to Rigiscan™ recording and on the days and nights of Rigiscan™ recording
  • Subject agrees to refrain from sexual activity for at least 24 hours prior to Rigiscan™ placement and to have no sexual activity on the days and nights of Rigiscan™ recording.
  • Subject agrees to not view, read, or otherwise consume erotic or pornographic material for 24 hours prior to both the days and nights of Rigiscan™ recording and on the days and nights of Rigiscan™ recording.
  • Subject agrees to not have an orgasm for 24 hours prior to both the days and nights of RigiscanTM recording and on the days and nights of Rigiscan™ recording.
  • Subject agrees to come to Montefiore to undergo Rigiscan™ training
  • Subject agrees to only consume/drink permitted food/beverages.
  • Subject agrees to attend all in person visits at Montefiore, to begin fasting at 11pm the night before each visit, and to undergo all blood draws/salivary/other testing.
  • Subject agrees to not use mouthwash or mouth rinses or intentionally spit for the entire duration of the study. Subjects will be asked to refrain from using mouthwash for at least 2 days prior to enrollment. Subject agrees to not brush his teeth in the morning of the day of each study visit. Tooth brushing is otherwise permissible.
  • BMI <30, BMI >=18.5, weight >110 lbs.
  • Subject agrees to comply with the study procedures and visits.
  • Subject exercises for at least 15 minutes at least two times per week
  • If exercise is done, subjects will exercise for the same amount of time and at a similar intensity each day of Rigiscan™ testing. Otherwise, no exercise will be performed on Rigiscan™ days.
  • If enrolled, subjects agree to not modify their dietary habits throughout the duration of the study other than during the two evenings and two full days when food is provided.

Exclusion criteria

  • Relevant dietary allergy
  • Vegetarian or Vegan dietary pattern
  • History of an eating disorder and/or food addiction
  • Hypertension and or history of hypertension with or without medical treatment. Systolic blood pressure > 150mmHg and/or diastolic blood pressure >100mmHg on Visit one. Heart rate >99 on Visit one. Systolic blood pressure < 85mmHg and/or diastolic blood pressure < 50mmHg on Visit one. Heart rate < 35 on Visit one.
  • BMI >=30, BMI <18.5, or weight <= 110lbs
  • Known chronic medical disease other than non-inflammatory musculoskeletal disease, asthma, anxiety, depression, and/or ADHD.

Subjects who have had changes in the dosage or type of their medication(s) for anxiety, depression, and/or ADHD within 3 months of enrollment.

Subjects who have scheduled or planned medication and/or medication dose changes during the study period. These medication changes include the initiation of a new medication, discontinuation of a medication, modification of medication dose, and/or the route of administration of a medication.

Subjects who are taking benzodiazepines and/or beta blockers

  • History of kidney disease or hyperkalemia
  • Subject has received an investigational drug within 30 days prior to signing consent
  • Erectile dysfunction
  • Has any condition (e.g., psychiatric illness) or situation that, in the investigator's opinion, may confound the study results, or may interfere significantly with the patient's ability to adhere with study procedures
  • Currently undergoing treatment for Peyronie's Disease
  • Abnormal Testosterone or Thyroid Stimulating Hormone level
  • Treated hypogonadism or hypothyroidism
  • Planned travel during the study
  • The subject is trans-gender
  • History of substance abuse in the last 12 months
  • Illicit drug use, smoking, or vaping within 4 weeks
  • Upper respiratory illness within two weeks on screening
  • If profession requires being on call, no overnight or on call duties during the study
  • Subject reports any communicable skin or venereal disease
  • Subject reports rash or lesion on the penis or surrounding area.
  • STOP-Bang score > 2
  • Having the diagnosis of Restless Leg Syndrome.
  • Having insomnia as defined by: Subject with insomnia would have difficulty initiating or maintaining sleep (30 minutes or more at sleep initiation or 30 minutes or more to fall back asleep if wakes during the night). The above occurs at least 3 times per week for at least 1 month. Furthermore, there must be adequate opportunity for sleep and there must be associated morbidity (feels tired during the day). Definition based on: The International Classification of Sleep Disorders - Third Edition (ICSD-3), 2014.

Treatment and study plan

Animal based diet

Other

Food will be provided by Montefiore-Einstein Food Services

Plant based diet

Other

Food will be provided by Montefiore-Einstein Food Services

Primary outcomes

  1. Percent of time ≥60% erect during overnight Rigiscan™ use after 4 meals.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 60% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

Secondary outcomes

  1. Percent of time ≥60% erect during overnight Rigiscan™ use after 1 meal.

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 60% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time

  2. Percent of time ≥60% erect during overnight Rigiscan™ use after 4 meals, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 60% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  3. Percent of time ≥60% erect during overnight Rigiscan™ use after 1 meal, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 60% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

Other outcomes

  1. Heart rate

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing heart rate by dietary pattern at both time points (after overnight Rigiscan™ use after consuming the 1 meal and after overnight Rigiscan™ use after consuming the 4 meals) and compared to its respective baseline in beats/minute. Definition: In regard to the following anthropometric, vital sign, and laboratory data (blood, urine, and saliva) pre-specified outcomes included in this pre-specified outcomes section, at "both time points" is defined as in the sentence above and "respective baseline" refers to either visit 2 or visit 5, as visit 2 is the baseline for one dietary arm (plant or animal) and visit 5 is the baseline for the other dietary arm (plant or animal).

  2. Blood Pressure

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing blood pressure by dietary pattern at both time points and compared to its respective baseline in mmHg

  3. Weight

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing weight by dietary pattern at both time points and compared to its respective baseline

  4. Fibrinogen

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  5. D-dimer

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in ng/mL

  6. Total cholesterol

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  7. HDL cholesterol

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  8. HDL efflux capacity

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline.

  9. LDL cholesterol

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  10. Triglyceride

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  11. Oxidized LDL cholesterol

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in U/L

  12. Free Fatty Acids

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in micromoles

  13. Myeloperoxidase

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in ug/L

  14. Factor VII

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in percentage.

  15. lysolecithin

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/mL

  16. Apolipoprotein B

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  17. Omega 3 index

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in percentage of erythrocyte fatty acid

  18. Lipoprotein-associated phospholipase-A2 (Lp PLA2) activity

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in nmol/min/mL

  19. Lipoprotein (a)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in nmol/L

  20. Homocysteine

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  21. methylmalonic acid (MMA)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  22. Asymmetric Dimethylarginine (ADMA)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  23. symmetric dimethylarginine (SDMA)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  24. Total testosterone

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  25. Sex Hormone Binding Globulin

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in nmol/L

  26. cystatin C

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  27. remnant cholesterol particles

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  28. uric acid

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  29. interleukin 1

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in pg/mL

  30. interleukin 6

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in pg/mL

  31. hsCRP

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/L

  32. Blood Urea Nitrogen (BUN)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  33. Carbon Dioxide (CO2)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mmol/L

  34. creatinine

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  35. glucose

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  36. serum chloride

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in meq/L

  37. serum potassium

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in meq/L

  38. serum sodium

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in meq/L

  39. alanine aminotransferase (ALT)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in units/L

  40. aspartate aminotransferase (AST)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in units/L

  41. estimated glomerular filtration rate (eGFR)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mL/min/1.73m2

  42. vitamin c

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/dL

  43. reduced glutathione

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  44. superoxide dismutase

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in ng/mL

  45. vitamin e

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/L

  46. selenium

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in ng/mL

  47. malondialdehyde

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  48. non coding RNA

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in copies/mL

  49. micro RNA

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in copies/mL

  50. Lnc RNA

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in copies/mL

  51. trimethylamine-N-oxide (TMAO)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in umol/L

  52. phenylacetylglutamine (PAG)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in uM (micrometers)

  53. Comparing urine albumin-to-creatinine ratio (UACR)

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in mg/g

  54. Comparing salivary nitrite level as a correlate of plasma nitric oxide (NO) level

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in micromoles/L

  55. Comparing salivary nitrate level in as a correlate of plasma nitric oxide (NO) level

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in micromoles/L

  56. Platelets

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline in cells/ul.

  57. FIB-4 Index

    Time frame: Time zero (Visit 2), at ~24 hours after time zero (Visit 3), at ~48 hours after time zero (Visit 4), after 8-12 day washout (Visit 5), at ~24 hours after 8-12 day washout (Visit 6), at ~48 hours after 8-12 day washout (Visit 7)

    Comparing it at both time points by dietary pattern and compared to its respective baseline

  58. Percent of time ≥50% erect during overnight Rigiscan™ use after the 4 meals.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 50% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  59. Percent of time ≥50% erect during overnight Rigiscan™ use after 1 meal.

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use)

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 50% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time

  60. Percent of time ≥70% erect during overnight Rigiscan™ use after 4 meals.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 70% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time

  61. Percent of time ≥70% erect during overnight Rigiscan™ use after 1 meal.

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 70% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time

  62. Percent of time ≥70% erect during overnight Rigiscan™ use after 4 meals versus after 1 meal by dietary pattern.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals versus overnight Rigiscan™ use directly after consuming the 1 meal by dietary pattern, for each dietary pattern.

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 70% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  63. Percent of time ≥60% erect during overnight Rigiscan™ use after 4 meals versus after 1 meal by dietary pattern.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals versus overnight Rigiscan™ use directly after consuming the 1 meal by dietary pattern, for each dietary pattern.

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 60% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  64. Percent of time ≥50% erect during overnight Rigiscan™ use after 4 meals versus after 1 meal by dietary pattern.

    Time frame: During overnight Rigiscan™ use directly after consuming the 4 meals versus overnight Rigiscan™ use directly after consuming the 1 meal by dietary pattern, for each dietary pattern.

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 50% at both the tip and base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  65. Percent of time ≥70% erect during overnight Rigiscan™ use after 4 meals, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 70% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  66. Percent of time ≥70% erect during overnight Rigiscan™ use after 1 meal, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥70% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  67. Percent of time ≥50% erect during overnight Rigiscan™ use after 4 meals, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 4 meals. (The second night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 50% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

  68. Percent of time ≥50% erect during overnight Rigiscan™ use after 1 meal, where each erection lasts >=5 minutes as measured by Rigiscan™

    Time frame: During overnight Rigiscan™ use directly after consuming 1 meal. (The first night of Rigiscan™ use).

    The first 5 minutes of Rigiscan™ recording is discarded. Erection time is the total time (in minutes) when penile rigidity is ≥ 50% at both the tip and the base of the penis with a concurrent increase in penile tumescence at both the tip and base of the penis compared to baseline tumescence, and the erection lasts >= 5 minutes, as measured by Rigiscan™ during overnight Rigiscan™ use, divided by the total time (in minutes) of overnight Rigiscan™ use. Overnight Rigiscan™ use time is defined as starting 5 minutes after the start of the Rigiscan™ recording and the end of Rigiscan™ use is defined as the last time the tip or base was >=10% rigid with a corresponding concurrent increase in penile tumescence at the tip or base compared to baseline tumesence. This total time window from start to end is the Rigiscan™ use time.

Study contacts

Contact information is provided by the study sponsor or research team.

Robert Ostfeld, MD

CONTACT

[email protected]

718-920-5197

Sponsors and collaborators

Lead sponsor

Montefiore Medical Center

Other

Collaborators

  • Dr. Irwin Goldstein
  • National Institutes of Health (NIH)
  • Nitric Oxide Innovations LLC
  • The Greenbaum Foundation
  • The Purjes Foundation

Registry information

Official study title

The Impact of a Plant-Based Diet Versus an Animal-Based Diet on Erectile Function in Healthy Men With Normal Erectile Function: The ERECTION Study

Acronym: ERECTION

Important dates

Study start
2023
Primary completion
2026
Study completion
2026
First posted
Apr 16, 2020
Registry last updated
Jul 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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