Clinical trials: Natural Pregnancy
Kidney Neoplasms, Kidney Cancer
Genetic Analysis of Birt Hogg-Dube Syndrome and Characterization of Predisposition to Kidney Cancer
This study will investigate the genetic cause of Birt Hogg-Dube (BHD) syndrome and the relationship of this disorder to kidney cancer.
- Conditions
- Kidney Neoplasms, Kidney Cancer, Pneumothorax, FLCN Protein, Human
- Trial name
- NCT00033137
- Where
- United States
- Volunteers
- 950 people, healthy volunteers welcome
- Sponsor
- National Cancer Institute (NCI)
Endometriosis, Chronic Pelvic Pain
Pelvic Pain in Women With Endometriosis
This study will examine pelvic pain associated with endometriosis and explore better approaches to treatment. In women with endometriosis, uterine tissue grows outside the uterus.
- Trial name
- NCT00073801
- Where
- United States
- Volunteers
- 78 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
in Vitro Fertilization
Transfer of Frozen Embryos in Natural Cycle: Evaluation of Impact of Spontaneous Versus HCG-triggered Ovulation on Pregnancy Rate
The purpose of the study is to evaluated whether there is a difference in pregnancy rate when transferring frozen embryos between patietns having spontaneously ovulated versus those triggered to voulate with HCG.
- Trial name
- TECNAT (NCT03428165)
- Testing
- HCG
- Where
- 2 sites in France
- Volunteers
- 103 people
- Sponsor
- Centre Hospitalier Universitaire de Nīmes
Intraventricular Hemorrhage, Premature Infants
Intraventricular Hemorrhage and Post Hemorrhagic Ventricular Dilation: Natural Course, Treatment, and Outcome
Intraventricular hemorrhage and its resultant post-hemorrhagic hydrocephalus are significant risk factors for the development of neurodevelopmental delays in preterm infants.
- Trial name
- NCT00957840
- Testing
- NIRS, aEEG, and CSF concentration of biomarkers
- Where
- United States
- Volunteers
- 63 people
- Sponsor
- University of Utah
Gestational Age, Time to Pregnancy
A Follow-up of the Early Pregnancy Study Cohort.
Background: The purpose of the 1982 1986 North Carolina Early Pregnancy Study was to determine how often pregnancy loss occurs before women know they are pregnant.
- Conditions
- Gestational Age, Time to Pregnancy, Early Pregnancy Loss
- Trial name
- NCT01132924
- Where
- United States
- Volunteers
- 173 people
- Sponsor
- National Institute of Environmental Health Sciences (NIEHS)
Pregnancy, Induction of Labor
Natural Cervical Ripening to Prevent Pharmacological Induction of Labor - a Pilot Study.
As of today, around 25% of all vaginal births happen after induction of labor (IOL). The internal guidelines of the University Hospital Zurich currently recommend pregnant women with a non-insulin dependent gestational diabetes…
- Conditions
- Pregnancy, Induction of Labor, Gestational Diabetes Mellitus (GDM)
- Trial name
- Cervinat (NCT07587632)
- Testing
- Membrane sweaping and Breast massage
- Where
- Switzerland
- Volunteers
- 74 people
- Sponsor
- University of Zurich
Prenatal Care, Premature Birth
Biological Markers of Disease in the Prediction of Preterm Delivery, Preeclampsia and Intra-Uterine Growth Retardation: A Longtitudinal Study
Preterm delivery, preeclampsia and intrauterine growth restriction are leading causes of perinatal morbidity and mortality. Efforts to treat these syndromes have not been effective, most likely becuase these obstetric…
- Trial name
- NCT00340899
- Where
- Chile
- Volunteers
- 19,134 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Alport Syndrome Patients With eGFR Between 45-90 ml/Min/1.73 m2
ATHENA: Natural History of Disease Study in Alport Syndrome Patients
There is limited published clinical data about the natural history of renal disease in Alport syndrome. The RG012-01 study will collect data to characterize the progression of renal dysfunction in Alport syndrome patients.
- Trial name
- RG012-01 (NCT02136862)
- Where
- 15 sites in United States, Australia and 4 more
- Volunteers
- 165 people
- Sponsor
- Genzyme, a Sanofi Company
Cystocele
A Novel Suturing Technique of Cystocele Treatment
The rug weaving-like plication technique may offer a viable alternative for cystocele repair without mesh, utilizing natural tissue.
- Trial name
- cystosel (NCT06410469)
- Testing
- rug weaving-like plication technique
- Where
- Turkey (Türkiye)
- Volunteers
- 65 people
- Sponsor
- Ankara City Hospital Bilkent
Androgen Insensitivity Syndrome, Metabolic Parameters in AIS, CAIS, PAIS and MAIS
Androgen Receptor, Implications for Health and Wellbeing: Natural History Study of Individuals With Androgen Insensitivity
Background: Androgen effects in humans are usually (but not always) mediated by the androgen receptor which is coded for by the androgen receptor gene (AR gene).
- Conditions
- Androgen Insensitivity Syndrome, Metabolic Parameters in AIS, CAIS, PAIS and MAIS, Tumor Formation in AIS, CAIS, PAIS and MAIS, Sexual Function AIS, CAIS, PAIS and MAIS
- Trial name
- NCT04708431
- Where
- United States
- Volunteers
- 650 people, healthy volunteers welcome
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Infertility
The Relationship Between CD138 Count of Endometrium and Reproductive Outcome
It's well known, endometritis affects reproductive outcomes. Though CD138 counting as one new diagnosis measure for endometritis, diagnostic criterion of this measure isn't consistent.
- Trial name
- NCT03689101
- Testing
- Endometrial biopsies
- Where
- China
- Volunteers
- 148 people
- Sponsor
- Reproductive & Genetic Hospital of CITIC-Xiangya
Premature Birth
Effect of Intake in Bioactive Molecules From Natural or Pasteurised Milk on Gut Maturation in Very Premature Newborns
It seems important to correlate real consumption in bioactives molecules of natural milk versus pasteurized with gut maturation in very preterm infants during small enteral feeding protocol.
- Trial name
- NCT01177475
- Testing
- blood samples , feces samples, blood samples, feces samples
- Where
- France
- Volunteers
- 55 people
- Sponsor
- Assistance Publique Hopitaux De Marseille
Pregnancy
Fetal Growth Evaluation by Three-Dimensional Ultrasound
Fetal growth abnormalities, such as macrosomia and intrauterine growth retardation, are an important cause for increased perinatal mortality in the United States.
- Trial name
- NCT00340171
- Where
- 2 sites in United States
- Volunteers
- 1,919 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Comparison of Pregnancy Rate (HCG+ Level) Obtained After a Replacement Embryonic in Spontaneous Cycle and Following Protocol "NPP". Comparison
Prospective Randomized Non-Inferiority Study Comparing Natural Cycle Frozen Embryo Transfer (NC-FET) to a New Type of Endometrial Preparation for FET: Natural Proliferative Phase (NPP-FET)
Frozen embryo replacement cycle :Two methods traditionally used: the spontaneous cycle and the artificial cycle.Now, Emergence of new protocols: NPP-FET or "Natural proliferative phase - frozen embryo transfer" Demonstrate…
- Trial name
- NPP (NCT06859944)
- Testing
- Embryo transfer
- Where
- Belgium
- Volunteers
- 272 people
- Sponsor
- Erasme University Hospital
Infertility, Female
Assessment of the Feasibility of Frozen Embryo Transfers in a Natural Cycle Among Obese Compared to Non-Obese Patients
This retrospective study included 1,831 single blastocyst frozen embryo transfer (FET) cycles performed between November 1, 2022 and August 31, 2025.
- Trial name
- NATEC (NCT07450300)
- Testing
- Modified natural cycle, Substitued cycle, Hormonal replacement therapy
- Where
- France
- Volunteers
- 1,831 people
- Sponsor
- Clinique Mathilde
Miscarriage, Frozen Embryo Transfer
Natural Cycle Versus Hormone Replacement Therapy Cycle for a Frozen-thawed Embryo Transfer in PGT Patients
The aim of the current study is to compare miscarriage rates (before 8 weeks) between a true natural cycle (awaiting spontaneous LH surge) and a hormone replacement therapy cycle prior to blastocyst transfer in preimplantation…
- Conditions
- Miscarriage, Frozen Embryo Transfer, Natural Cycle, Hormone Replacement Therapy Cycle
- Trial name
- NCT03976544
- Testing
- Estradiol Valerate, Micronized progesterone
- Where
- Belgium
- Volunteers
- 362 people
- Sponsor
- CRG UZ Brussel
Other Obstetric Trauma - Delivered
Safe Delivery Using a Belt on the Belly of Pregnant Woman
Safety of natural, vaginal labor for parturient, fetus and newborn is one of most important goal among obstetricians, midwifes, scientific society all over the world.
- Trial name
- SDB (NCT01566331)
- Testing
- Baby-guardTM
- Where
- Italy
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Padova
Colorectal Neoplasms, Urologic Neoplasms
A Novel Robotic System for Single Port and Natural Orifice Transluminal Endoscopic Surgery
This is a prospective, single center, multispecialty study that aimed to evaluate the clinical feasibility and safety of single port surgery and NOTES (mainly transanal and transoral surgery) using a novel single port robotic…
- Conditions
- Colorectal Neoplasms, Urologic Neoplasms, Urologic Diseases, Nasopharyngeal Neoplasms
- Trial name
- NCT03010813
- Testing
- Robotic single port surgery and NOTES
- Where
- China
- Volunteers
- 63 people
- Sponsor
- Chinese University of Hong Kong
Fistula;Rectal, Fistula; Rectouterine
Zurich Fistula Cohort Study
This is a pro- and retrospective cohort study to evaluate the natural history and outcome of various treatment options of patients with fistula.
- Conditions
- Fistula;Rectal, Fistula; Rectouterine, Fistula; Rectovesical, Fistulas Recto Vaginal
- Trial name
- NCT03003351
- Where
- Switzerland
- Volunteers
- 100 people
- Sponsor
- University of Zurich
Congenital Adrenal Hyperplasia (CAH), Familial Male-Limited Precocious Puberty (FMPP)
Natural History Study of Patients With Excess Androgen
This study will evaluate and gather information in patients with genetic causes of too much androgen (male-like hormone) in order to better understand the effects of too much androgen and describe problems associated with it.
- Trial name
- NCT00250159
- Where
- 2 sites in United States
- Volunteers
- 3,000 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)