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Tundra lists 192 Infertility clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07062237
A Randomized Clinical Trial Comparing Embryo Euploidy Rates Following Ultrashort Versus Standard Abstinence
This research is being done to determine if producing sperm after an ultrashort period of abstinence (1 hour of abstinence) will be effective in improving the rates of embryos with normal chromosomes (structures that carry genetic information) during in vitro fertilization (IVF) treatment. The investigators hypothesize that a shorter period of abstinence is effective at improving rates of normal chromosomes among embryos.
Gender: All
Ages: 18 Years - 42 Years
Updated: 2026-07-09
1 state
NCT02357654
GnRH for Luteal Support in IVF/ICSI/FET Cycles
During IVF cycles an embryo is generally placed into the uterine cavity between 3 and 5 days after fertilization. For a successful pregnancy to take place, that embryo must then implant in the properly primed and staged endometrium, which subsequently must continue to develop to accommodate the growing and maturing embryo and then fetus. This process is normally regulated by hormonal interactions between the fetal, endometrial and luteal tissue. It has been found that after IVF additional support for the endometrium with progesterone improves implantation and subsequent live birth rates in IVF cycle . Recent data has shown that additional supplementation with a single administration of a GnRH agonist around the time the time of embryo transfer may further enhance these rates .
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2026-07-09
1 state
NCT07675213
Endometrial Peristalsis and Pregnancy Outcomes in Hormone Replacement Therapy (HRT) - Frozen Embryo Transfer (FET) Cycles
Endometrial peristalsis may influence embryo implantation and pregnancy outcomes, but its role during hormone replacement therapy (HRT)-prepared frozen embryo transfer (FET) cycles remains unclear. This prospective observational study will assess endometrial peristalsis at predefined time points during HRT-prepared FET cycles using transvaginal ultrasonography and evaluate its association with pregnancy outcomes. The study aims to clarify the clinical significance of endometrial peristalsis in HRT-prepared FET cycles and to provide evidence supporting endometrial assessment in assisted reproductive technology.
Gender: FEMALE
Ages: 18 Years - 42 Years
Updated: 2026-07-09
NCT05454046
Food Intake Among Women and Men in Fertility Treatment
Worldwide infertility is highly prevalent and lifestyle factors, such as food intake, could have an essential role in the success of a fertility treatment. The literature is not consistent and adequate for recommendations to the increasing number of women and men of reproductive age who ask for lifestyle guidance. Therefore, the aims of the Food \& Fertility study will be to investigate the association between food intake and semen quality, pregnancy- and live birth rates in women and men undergoing assisted reproductive technology (ART) treatment.
Gender: All
Updated: 2026-07-08
NCT07691073
Embryo QUAlity in Ovarian Stimulation With hMG.
Ovarian stimulation (OS) is a key component of IVF, aimed at increasing oocyte yield and improving embryo development potential. While early protocols relied solely on FSH, newer approaches incorporate hMG and LH-based stimulation, allowing more individualized treatments for specific patient populations. Evidence suggests that hMG and recombinant FSH (rFSH) have comparable effectiveness in stimulation outcomes, and current guidelines support the use of both. However, the impact of different gonadotropins on embryo quality remains unclear, with mixed findings across protocols. Given the increasing use of combined rFSH and hMG and the limited data in PPOS protocols, this study proposes a randomized controlled trial to compare embryo quality between two different rFSH-hMG dosing strategies.
Gender: FEMALE
Ages: 38 Years - 41 Years
Updated: 2026-07-08
1 state
NCT06581068
Automation of the In Vitro Fertilization Laboratory
Enrolled patients will undergo an Assisted Reproductive technology (ART) treatment using intracytoplasmic sperm injection (ICSI, the direct injection of a single sperm cell into an oocyte) as the method of insemination. In this prospective cohort study, patients' sperm, eggs, and embryos will be processed using an automated system called AURA (Conceivable Life Sciences), which consists of five subsystems. Specifically, sperm samples will be prepared for fertilization using the subsystem C:SPERM. Cumulus-oocyte complexes (COCs) containing the oocytes will be isolated from follicular fluid using the subsystem C:EGG. One out of every four COCs will be removed from the AURA system at random and processed according to the local treatment clinic's standard operating procedure. All other COCs will continue automated procedures and will be denuded, fertilized, incubated, and vitrified using the AURA subsystems C:EGG. C:ICSI, C:CULTURE and C:VIT, respectively. All automated procedures will be conducted under the supervision of a laboratory manager, who can intervene, address any potential anomalies, and override any steps undertaken by the automated AURA system. The study aims to deliver a descriptive evaluation of the AURA system, including assessing the device's performance, defined by its level of automation, efficiency, and throughput. As a secondary objective, the study aims to characterize the clinical performance of each of AURA's subsystems and correlate this performance against pre-established benchmarks in a non-inferiority statistical analysis. Finally, the study seeks to collect technical data related to AURA's hardware and software operation.
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-07-06
1 state
NCT01511588
Hormonal Regulation of Puberty and Fertility
Background: \- The body produces gonadotropin-releasing hormone (GnRH) about every 2 hours. GnRH travels through the bloodstream to the pituitary gland, where it stimulates the gland to produce hormones called gonadotropins. These hormones stimulate the testicles or ovaries. The testicles produce testosterone and develop sperm. The ovaries produce estrogen and prepare for ovulation. Normal estrogen and testosterone levels are required for puberty. Some people, however, have either low levels or total lack of GnRH. This can cause problems with puberty and fertility. Researchers want to study people with low or no GnRH to better understand how it affects puberty and fertility. Objectives: \- To study disorders of GnRH production. Eligibility: * Adult men and women at least 18 years of age with low or no gonadotropin levels. * Adolescents between 14 and 18 years of age with low or no gonadotropin levels. Design: * Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. * Participants will have tests to look at their hormone levels. Blood samples may be collected after taking different drugs, including insulin and cortisone. A 24-hour urine sample will be collected. * Participants will have imaging studies to look at bone and brain development. They will also have ultrasounds of the kidneys, abdomen, and reproductive organs. * Tests of smell and hearing will be used to look for abnormalities in these senses.
Gender: All
Ages: 14 Years - 100 Years
Updated: 2026-07-02
2 states
NCT07478549
Safety Evaluation of the HyperSperm Sperm Preparation Procedure for In Vitro Fertilization
Prospective, multicenter, randomized clinical study evaluating the safety of a novel sperm preparation method for in vitro fertilization (IVF), compared to standard sperm preparation procedures.
Gender: All
Ages: 20 Years - 45 Years
Updated: 2026-06-26
1 state
NCT06165367
Hyaluronan-enriched Medium and Euploid Blastocyst Transfers
It has been proposed that enriching transfer media with hyaluronan (EmbryoGlue medium) improves pregnancy outcomes compared with media containing lower concentrations of this molecule. However, none of previous studies included preimplantation genetic testing for aneuploidy (PGT-A) embryos. In order to investigate the impact of this hyaluronan-enriched on pregnancy outcomes, it is essential to evaluate its efficacy on euploid-only embryo transfers. The aim of the present study is to evaluate whether a short period of exposure of euploid blastocysts to EmbryoGlue prior to and during transfer positively impact on pregnancy outcomes of frozen embryo transfer (FET) cycles.
Gender: FEMALE
Ages: 18 Years - 46 Years
Updated: 2026-06-25
1 state
NCT05980091
Optimal Timing of Euploid Day 6 Blastocyst Transfer in Frozen HRT Cycles, Day 6 or Day 7 of Progesterone Administration.
The goal of this study is to compare the difference in clinical pregnancy, miscarriage and livebirth rate between day 6 euploid blastocyst transfer on the 6th and the 7th day of progesterone exposure in Hormonal Replacement Therapy (HRT) FET cycles. This prospective \& randomized study will only include euploid day 6 blastocysts. This will be the first prospective study of euploid day 6 blastocysts thereby excluding aneuploidy as a cause of miscarriage and implantation failure. The point of randomization will occur on the day of progesterone commencement.
Gender: FEMALE
Ages: 18 Years - 43 Years
Updated: 2026-06-25
1 state
NCT04381299
Will Autologous Platelet Rich Plasma Able To Restore Ovarian Function?
A-PRP (Autologous Platelet Rich Plasma) is becoming widely used in a variety of medical procedures seeking tissue remodeling and/or healing as an intervention. To date, applications in orthopedics, wound healing, dermatology and plastic surgery have gained general acceptance, primarily as the role of platelets and their activation in tissue repair and recovery has become better understood at a cellular and molecular level. This study will involve adult women with a diagnosis of Premature ovarian insufficiency (POI) willing to perform an IVF/ICSI treatment.
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2026-06-25
1 state
NCT05048511
Impact of Vitamine D Status on in Vitro Fertilization Outcomes
Non skeletal effect of vitamin D have been the focus of much interest in the past decade. During the last years, special attention has been given to the impact of vitamin D on human reproduction. Its receptor is expressed in most reproductive organs including hypothalamus, pituitary gland, uterus, ovary, mammary gland and the placenta. In vitro experiments suggest that vitamin D would be involved in regulated embryo-implantation. Concerning AMH, vitamin D seems to alters AMH signaling in human granulosa cells although their circulated levels are correlated in lated reproductive aged women. The results of precedents studies about the impact of vitamin D on IVF outcomes remain conflicting The aim of our study was to assess in a large unselected population of infertile women, the impact of vitamin D deficiency on IVF outcome and to examine the relationship between serum vitamin D levels and the ovarian reserve marker AMH.
Gender: FEMALE
Ages: 18 Years - 42 Years
Updated: 2026-06-24
NCT05440617
Biorepository in Participants Who Undergo OTC for Gonadotoxic Therapy
Background: Medical advances have improved survival rates for many cancers and other illnesses. This means that more people are coping with the long-term effects of these treatments. Some treatments can cause female infertility. Ovarian tissue cryopreservation (OTC) may help. Before undergoing a treatment that may damage their fertility, patients may opt to freeze a sample of ovarian tissue. The tissue contains immature egg cells. When thawed, the tissue can be reimplanted. This procedure can help women become pregnant. Objective: This natural history study will create a databank of ovarian tissue. The NIH will provide OTC as a clinical service. The NIH will also request a portion of the tissue to use for research. Eligibility: Females aged 4 to 35 who opt to have OTC before receiving cancer treatment. Design: Participants will be screened. Their existing medical records will be reviewed. They will be asked if they want to donate a portion of their ovarian tissue for research. No more than 20% of the tissue collected will be taken for research. Some other tissues that would otherwise be discarded will also be kept. Medical data from each participant may also be collected and stored in the database. This data may include results of routine blood tests, imaging tests, and other information. The data will be coded for privacy. Participants will answer a questionnaire. They will be asked about their fertility treatment and general health. The survey takes about 30 minutes. They will repeat the questionnaire once a year for 30 years.
Gender: FEMALE
Ages: 4 Years - 35 Years
Updated: 2026-06-24
1 state
NCT01500447
Inherited Reproductive Disorders
Background: \- During puberty, children begin to develop into adults. Problems with the hormones released during puberty can affect the reproductive system. Some people have low hormone levels that severely delay or prevent puberty. Others start puberty abnormally early. Other people may have a normal puberty but develop reproductive disorders later in life. Researchers want to study people with reproductive disorders to learn more about how these disorders may be inherited. Objectives: \- To learn how reproductive system disorders may be inherited. Eligibility: * People with one of the following problems: * Abnormally early puberty * Abnormally late or no puberty * Normal puberty with hormonal problems that develop later in life * People who have not yet had puberty but have symptoms that indicate low hormone levels. Design: * Participants will provide a blood sample for testing. They will complete a questionnaire about their symptoms. They will also have a scratch-and-sniff test to study any problems with their ability to smell. * Participant medical records will be reviewed. Participants will also provide a family medical history. * Family members of those in the study may be invited to participate. * Treatment will not be provided as part of this study.
Gender: All
Ages: 6 Weeks - 120 Years
Updated: 2026-06-24
2 states
NCT07665905
Effects of Visceral Osteopathic Massage on Semen Parameters and Hemodynamics Factors in Varicocele
The project aims to evaluate the effects of a visceral osteopathic manual therapy (VOM) protocol on semen parameters and testicular hemodynamic indicators in men diagnosed with varicocele. Varicocele, the most common correctable cause of male infertility, is a progressive vascular pathology characterized by dilation of the pampiniform plexus veins and venous reflux. Multifactorial mechanisms such as venous valve insufficiency, increased intra-abdominal pressure, microcirculatory impairment, and oxidative stress play a role in the pathophysiology of varicocele. Therefore, the present study investigates the clinical effectiveness of a non-invasive rehabilitation approach aimed at regulating intra-abdominal pressure and improving pelvic venous drainage. The study will be conducted using a prospective, randomized controlled clinical design, including male participants aged 18-45 years diagnosed with varicocele. The intervention group will receive visceral osteopathic manual therapy techniques two times per week for eight weeks, while the control group will receive lifestyle recommendations only. Before and after the intervention, semen analysis results, sperm morphology, motility parameters, and testicular venous hemodynamic measurements obtained by color Doppler ultrasonography will be compared. Parametric and non-parametric statistical methods will be used in the analyses. This project aims to generate clinical evidence regarding conservative, complementary medicine-based treatment options in the field of male infertility. Compared to studies on female reproductive health, research focusing on male reproductive health is more limited; therefore, this study is expected to contribute to the literature in this area. The results are anticipated to support the development of a cost-effective and accessible model for infertility treatment processes. In addition, the project aims to provide scientific data for the development of sustainable reproductive health approaches in terms of health economics in Türkiye. The study seeks to determine the effects of visceral osteopathic manual therapy on varicocele-related semen parameters and hemodynamic variables and to contribute to the development of new evidence-based approaches in the management of male infertility.
Gender: MALE
Ages: 18 Years - 45 Years
Updated: 2026-06-24
1 state
NCT07399535
Clinical Investigation of Herbal Formulation and Its Efficacy in Polycystic Ovarian Syndrome
Polycystic Ovarian Syndrome (PCO) is a metabolic disorder that afflicts the women of childbearing age. An approximate of 5-10% women are the victim of this disorder. PCOS is a leading cause of infertility in females these days and is characterized by Hyperandrogenism, Chronic Anovulation, Impaired fertility, obesity, Hirsutism, Acne, Obesity, Metabolic disturbances (dyslipidemias, Hyperinsulinemia, insulin resistance, and type- 2 diabetes), and Endometrial Hyperplasia. This study will test a combination of herbal medications (Melats P) in women with PCOS to determine which works best to overcome infertility.
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2026-06-23
1 state
NCT06659497
The Level of Infertility Distress and Fertility Readiness of Women
The infertility treatment process is a multidisciplinary teamwork involving different professional groups. Especially the Controlled Ovarian Hyperstimulation (COH) protocols applied during the infertility treatment process require good nursing education, close monitoring and effective counseling. The patient's education during this process, the development of self-administration skills and follow-up are the responsibility of the infertility nurse and directly affect the treatment process and its success. There is a need to determine the level of impact of infertile individuals on this process, to increase their knowledge level regarding the treatment process and to ensure that individuals are supported closely and strengthened during the treatment process. This study was planned as a randomized controlled experimental study to determine the effect of web-based training to be given to women who undergo Intrauterine Insemination (IUI) treatment on the level of impact of infertility and fertility readiness of women.
Gender: FEMALE
Ages: 23 Years - 40 Years
Updated: 2026-06-23
2 states
NCT05290051
Prospective Study to Assess Medical Performance of Optical Mapping and Long Read Sequencing in Detecting Numerical and Structural Chromosome Abnormalities
Chromosomal aberrations are major causes of developmental disorders (Intellectual disability (ID), multiple congenital anomalies (MCA), autism spectrum disorders (ASD)) as well as reproductive disorders (RD) in particular gametogenesis defects and recurrent miscarriages. Current first tier genetic investigations for chromosome analysis in clinical settings include karyotyping in case of RD (5 \~ 10% diagnosis rate) and chromosomal microarrays (CMA) in case of ID/MM (10 \~ 20% diagnosis rate). However, both assays show significant drawbacks, e.g. low resolution for karyotyping and inability to detect balanced structural rearrangement for CMA. Optical genome mapping and long read genome sequencing are emerging technologies that offer new opportunities to overcome these limitations and allow for a higher resolution chromosome analysis. This project aims at assessing the performance of optical mapping and long read whole genome sequencing compared to current gold standard cytogenetics methods in a prospective study. The investigator will evaluate their ability to become the all-in-one methodology for genomic analysis that could replace both karyotype and CMA and their added-value compared to these latter by uncovering new diagnoses.
Gender: All
Updated: 2026-06-22
NCT06477068
Effect of a Medication Reminder Mobile Application
The goal of this clinical trial is to evaluate of effectiveness when using the "telemedicine medication reminder app on smartphones" at the Infertility Department of Hung Vuong Hospital. The main questions it aims to answer are: Comparison of the medication forgetting rate between the group of patients using the product and the group of patients not using the app. Assessment of the level of patient satisfaction when using the app. Comparison of the quantity and quality outcomes of eggs between the group of patients using the app and the group of patients not using the app. Participants will: Using or not using " "telemedicine medication reminder app on smartphones" Record the number of cycle cancellations, number of missed doses, satisfaction rates, number of retrieved oocytes, number of mature oocytes, number of immature oocytes, and number of abnormal oocytes.
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2026-06-22
NCT07074015
IntelliWell: An AI-Assisted Imaging Platform for Detection and Location of Ultra-Rare Testicular Sperm in Surgical Specimens
This study will help determine whether an AI-assisted microwell platform (IntelliWell) can identify rare sperm cells in testicular samples found to not have sperm by conventional analysis. Instead of discarding testicular tissue which was found to be non-sperm bearing by conventional analysis the testicular tissue will be processed using IntelliWell and, if sperm is found and verified by embryologists, it may be used for intracytoplasmic sperm injection (ICSI).
Gender: MALE
Ages: 18 Years - Any
Updated: 2026-06-22
1 state
NCT07603505
Effect of NAE on Polycystic Ovarian Syndrome (PCOS)
Polycystic Ovarian Syndrome (PCOS) is a multifaceted endocrine metabolic condition impacting about 5-10% of women throughout their reproductive lifespan. It is influenced by neuroendocrine dysfunction, insulin resistance, chronic low-grade inflammation, and ovarian oxidative stress. Existing medications, including metformin, clomiphene citrate, and anti-androgens, provide only limited advantages and are frequently restricted by side effects such as gastrointestinal intolerance, teratogenic risks, and weight gain. NAE (family Lamiaceae) is a fragrant perennial herb indigenous to the Himalayan and sub-Himalayan areas of Pakistan and Afghanistan. Phytochemical profiling of this plant has revealed high concentrations of flavonoids (luteolin, apigenin, quercetin), phenolic acids (rosmarinic and caffeic acid), terpenoids (nepetalactones), and glycosides. In a preclinical study lasting 30 days that involved Letrozole induced PCOS in Albino Wistar rats, the oral delivery of crude extract (350 and 500 mg/kg) and its methanol/butanol fractions (64 mg/kg; 12.5mg/kg) significantly restored estrous cyclicity, decreased serum LH and testosterone levels, normalized the LH/FSH ratio, enhanced insulin sensitivity (reduced HOMA IR), corrected dyslipidaemia, and reversed ovarian histopathological alterations. Molecular analysis by qRT PCR showed upregulation of IL 4 and downregulation of AR, CYP-17, TLR4, TNF α, and NF κB. Based on this multi targeted preclinical efficacy and a favourable safety profile, this clinical trial will assess the safety and effectiveness of a standardised NAE in women with PCOS, compared to metformin and combination therapy over 4 months.
Gender: FEMALE
Ages: 18 Years - 40 Years
Updated: 2026-06-22
1 state
NCT07585396
Inositol in Letrozol Resistant PCOS Women
Polycystic ovary syndrome (PCOS),is a complex neuro-endocrine disorder affecting approximately 5% to 10% of women in reproductive age.Inositols are considered insulin sensitizers, as they modulate the members of insulin signaling pathways.Thiss study compares between the effect of inositol and metformin in letrozol resistant PCOS women.
Gender: FEMALE
Ages: 18 Years - 35 Years
Updated: 2026-06-17
NCT03669276
Effect of Gonadotropin Types and Indications on Homologous Intrauterine Insemination Success
In this study the investigators took the opportunity of having a large sample of IUI cycles in a single centre to try to analyse the effect of stimulation protocols and of the infertility origin on the results, taking in account the main confounding variables (female age, IUI attempt rank, and sperm quality) on the clinical outcome. All couples had undergone a standard infertility evaluation, which included medical history, physical examination, and assessment of tubal patency by either hysterosalpingography or laparoscopy and hormonal analysis on cycle day 3. A transvaginal ultrasound scan was performed on the second day of the cycle. On the same day, ovarian stimulation was carried out with recombinant FSH (follitropinrFSH; Gonal-F, MerckSerono, France, orfollitropin;Puregon, MSD, France), urinary FSH (urofollitropin, Fostimon, France), orhMG (menotropin, Menopur, France) atastarting dose of 75 IU/day from the second day of the cycle. The main clinical outcome measures were clinical pregnancy and live-birth rates per cycle. Clinical pregnancy was defined as the evidence of pregnancy by ultrasound examination of the gestational sac at weeks 5-7.
Gender: FEMALE
Ages: 20 Years - 44 Years
Updated: 2026-06-16
NCT05483985
Evaluation of the Alife Hera System as an Adjunctive Tool for the Prioritization of Embryos Deemed Suitable for Transfer
To evaluate the clinical pregnancy rate (pregnancy defined as fetal heartbeat at 6-8 weeks) with the adjunctive use of the Hera System (Hera System used with traditional morphological grading) with embryos already deemed suitable for transfer compared to trained embryologists using standard morphology criteria alone.
Gender: FEMALE
Ages: 21 Years - 43 Years
Updated: 2026-06-15
4 states