Effect of Daily Intake of Gazpacho on Semen Quality and Oxidative Stress
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Standardized Mediterranean Diet, Gazpacho.
- Who it may be relevant to
- Registry conditions: Male Infertility, Oxidative Stress, Subfertility, Oligozoospermia. Basic parameters: 18 years — 45 years · Male.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Spain
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Effect of Daily Intake of Gazpacho on Semen Quality and Oxidative Stress in Men With Altered Semen Parameters: A Randomized Controlled Study
Overview
The goal of this clinical trial is to learn whether drinking a daily serving of gazpacho can improve semen quality in men with reduced sperm quality. The study will also examine how this dietary intervention affects oxidative stress and whether it is well tolerated. The main questions this study aims to answer are: * Does daily consumption of gazpacho improve semen quality in men with altered semen parameters? * Does this dietary intervention affect levels of oxidative stress in semen? * Is daily gazpacho intake feasible and well tolerated as part of a Mediterranean diet? Researchers will compare a Mediterranean diet plus daily gazpacho intake with a Mediterranean diet alone to determine whether adding gazpacho provides additional benefits for male reproductive health. Participants will: * Follow a standardized Mediterranean diet for 12 weeks * Drink 330 mL of gazpacho every day or follow the diet without gazpacho * Provide semen samples at the start of the study and after 12 weeks * Complete a short diary to record adherence to the dietary intervention * Be followed for up to 18 months to record reproductive outcomes
Detailed description
Detailed Description
This is a single-center, prospective, randomized, open-label, parallel-group study conducted at GINEFIV (IVIRMA Madrid). Eligible participants are men aged 18-45 years with an andrological profile that includes altered semen parameters such as oligozoospermia with or without associated asthenozoospermia and/or teratozoospermia (O±A±T). Participants will be randomized in a 1:1 ratio to a control group following a standardized Mediterranean diet or an intervention group following the same diet with the addition of 330 mL per day of commercially available gazpacho.
The intervention period lasts 12 weeks. Participants in the intervention group will consume gazpacho once daily with a main meal. Two production batches of the product will be analyzed to determine lycopene, vitamin C, and vitamin E content. Adherence to the intervention will be evaluated using a self-administered compliance diary and scheduled follow-up phone calls.
Semen samples will be collected at baseline and at the end of the intervention period. Semen analysis will be performed according to World Health Organization (WHO) 2021 guidelines. Seminal oxidative stress will be assessed using the OxiSperm II test and its Research Use Only (RUO) digital application, which will not be used for clinical decision-making.
The primary objective of the study is to evaluate changes in semen quality following the intervention. Secondary objectives include the assessment of seminal oxidative stress, adherence to the dietary intervention, safety and tolerability, and reproductive outcomes collected during post-intervention follow-up.
Participants will be followed for 18 months after completion of the intervention to record reproductive outcomes. The total study duration is estimated at 54 months, including recruitment, intervention, follow-up, and data analysis periods.
Interventions
- Other Standardized Mediterranean Diet
Participants will follow a standardized Mediterranean diet for a period of 12 weeks. The dietary pattern emphasizes the consumption of vegetables, fruits, legumes, whole grains, olive oil as the main source of fat, moderate intake of fish and nuts, and limited intake of red and processed meats. - Dietary supplement Gazpacho
Participants will consume 330 mL per day of commercially available gazpacho, taken once daily with a main meal, for a period of 12 weeks. The gazpacho will be consumed as part of the daily diet in addition to a standardized Mediterranean diet.
Primary outcome measures
- Change in Ejaculate Volume (mL) [Time frame: Baseline to 12 weeks]
- Change in Sperm Concentration (million/mL) [Time frame: Baseline to 12 weeks]
- Change in Total Sperm Motility (%) [Time frame: Baseline to 12 weeks]
- Change in Progressive Sperm Motility (%) [Time frame: Baseline to 12 weeks]
- Change in Normal Sperm Morphology (%) [Time frame: Baseline to 12 weeks]
Secondary outcome measures (7)
- Change in Seminal Oxidative Stress Signal (Color Units, CU) [Time frame: Baseline to 12 weeks]
- Adherence to Gazpacho Intake (%) [Time frame: Baseline to12 weeks]
- Incidence of Treatment-Emergent Adverse Events [Time frame: Baseline to 12 weeks]
- Biochemical Pregnancy Rate [Time frame: Up to 18 months post-intervention]
- Clinical Pregnancy Rate [Time frame: Up to 18 months post-intervention]
- Miscarriage Rate [Time frame: Up to 18 months post-intervention]
- Live Birth Rate [Time frame: Up to 18 months post-intervention]
Eligibility criteria
Inclusion criteria
- Men aged 18 to 45 years
- Andrological profile including altered semen parameters such as oligozoospermia, asthenozoospermia and/or teratozoospermia (O±A±T)
- No clinical indication for sperm DNA fragmentation testing or advanced sperm selection techniques
- Willingness and ability to comply with the study protocol, including adherence to a standardized Mediterranean diet
- Signed and dated written informed consent form
Exclusion criteria
- Use of antioxidant supplements during the three months prior to study start.
- Active smokers or men who have stopped smoking within the last three months.
- Diagnosis of azoospermia, leucocytospermia or necrozoospermia.
- Presence of severe systemic diseases or chronic conditions that could interfere with semen quality or adherence to the study.
- Known allergy or intolerance to any ingredient of the gazpacho used in the study.
- Any medical, psychological or social condition that, in the investigator's judgement, could compromise the subject's ability to participate fully or comply with the protocol requirements.
- Simultaneous participation in another clinical study.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Spain · 1 center
- GINEFIV Madrid (IVIRMA Group) — Madrid
Identifiers
NCT: NCT07375238 · 2506-GFMAD-082-PM