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Miscarriage clinical trials

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NCT ID: NCT05461963 Completed - Breast Feeding Clinical Trials

The Relationship Between Breastfeeding During Early Pregnancy and Miscarriage

Start date: June 26, 2022
Phase:
Study type: Observational

Breastfeeding provides various health and psychological benefits to mothers and their babies. It also acts as an effective method of natural contraception when applied strictly for up to six months after birth. Studies show that breastfeeding times are getting longer in the USA and more babies are breastfed for more than 12 months compared to the past. Recent research shows that 57% of US infants are breastfed until at least six months of age, and more than a third continue to be breastfed for up to 12 months. Prolonged breastfeeding durations increase the prevalence of breastfeeding during pregnancy, especially with the shortening of the intervals between pregnancies. Breastfeeding during pregnancy is a relatively common practice in many parts of the world. According to the data of studies conducted in low- and middle-income countries, it has been determined that 35% of the last born babies continue to be breastfed in the next pregnancy of their mothers. It has also been shown that the prevalence of breastfeeding during pregnancy in low-income countries is between 15% and 50%. Few research has been done on the relationship between breastfeeding during pregnancy and maternal, infant, or pregnancy outcomes. Some studies have suggested that hormonal mechanisms in pregnancy may link breastfeeding during pregnancy and abortion. When babies stimulate the nipple and areola during sucking, they trigger the release of oxytocin in the mother, causing a series of reactions that push the milk towards the nipple. We know that the prevalence of short and long breastfeeding intervals in pregnancy is high in our country. Therefore, in this study, we are planning to investigate whether there is a relationship between breastfeeding during pregnancy and miscarriage based on this information.

NCT ID: NCT05418140 Active, not recruiting - Infertility Clinical Trials

Adenomyosis and Pregnancy Outcomes in Women Undergoing Assisted Reproductive Technology Treatment

AdAPT-ART
Start date: June 14, 2022
Phase:
Study type: Observational

Rationale: A rising number of adenomyosis cases are being diagnosed in women in the age group of 30 to 40 years. This is due to a combination of better diagnostic imaging techniques and a higher number of women delaying the fulfilment of their fertility aspirations. The association between adenomyosis and pregnancy outcomes in women with subfertility has not been adequately explained by existing evidence due to lack of data on the association between the severity of adenomyosis, disease location, presence of symptoms and coexisting gynaecological conditions and pregnancy loss in women undergoing fertility treatment. There is a need to improve our understanding of prognostic features which would be beneficial in counselling women with adenomyosis undergoing fertility treatment and inform future management options. The investigators propose a research body of work aimed at improving our understanding of adenomyosis and its association with pregnancy loss. Objective: The aim of the study is to determine the association between adenomyosis and pregnancy loss in women undergoing assisted reproductive technology (ART) treatment. Study design: Prospective multicentre cohort study. The cohort will comprise of women with adenomyosis undergoing ART treatment and the control group will include women with normal uterus on baseline ultrasound scan undergoing ART treatment during the study duration. Settings: The study will be conducted at all main CARE fertility units, one of the largest providers of fertility treatment in the United Kingdom. Participant population with exposure and sample size: The cohort group will comprise of women diagnosed with adenomyosis on pre-treatment baseline ultrasound scan before ART treatment who satisfy the eligibility criteria and consent to participate in the study. The total sample size for this study will be 750 participants with 375 women in each arm. Recruitment will take place over the course of 18 months. Diagnostic tool for detection of exposure: The diagnosis of adenomyosis will be made using transvaginal ultrasound scan (TVS) (2D and 3D Ultrasound and applying Morphological Uterus Sonographic Assessment (MUSA) criteria. Schematic mapping system of adenomyosis severity proposed by Lazzeri and colleagues will be used to grade the severity of adenomyosis. Eligibility: Inclusion criteria: All women aged >18 years and ≤42 years undergoing IVF/ICSI cycle. Exclusion criteria: Women with coexisting fibroid uterus, endometrioma confirmed on USS or known laparoscopic diagnosis of endometriosis (with histological confirmation), untreated hydrosalpinx, uterine malformation, previous myomectomy, previous surgery for adenomyosis or inconclusive USS. Recruitment: All women undergoing pre-treatment pelvic ultrasound scans before ART treatment will be screened for adenomyosis at the participating centres. Women who meet the eligibility criteria will be provided with an information leaflet about the study. They will be enrolled in the study after informed consent is obtained. The severity of adenomyosis will be subsequently evaluated using stored 2D and 3D ultrasound scan (USS) images. Several demographic, clinical and treatment characteristics will be recorded for each participant. Control: To ensure adequate comparability of the cohort, women with normal uterus on baseline ultrasound scan during the study duration will be used as control and will be matched for the following variables: age, embryo quality, type of ART cycle (donor or self and IVF or ICSI) and number of embryos transferred. The eligibility criteria will be applicable to the controls as well. Outcome measures: Primary outcome: Pregnancy loss up to 24 weeks out of all pregnancies achieved. The pregnancy loss will include biochemical pregnancy loss, miscarriage, pregnancy of unknown location (PUL) and ectopic pregnancy. This will be reported per embryo transfer and per woman. Secondary outcomes:1. Implantation rate per embryo transfer (number of gestational sacs divided by number of embryos transferred) and per woman; 2. Biochemical pregnancy rate per embryo transfer (positive pregnancy test following embryo transfer) and per woman; 3. Clinical pregnancy rate per embryo transfer (presence of at least one intrauterine gestational sac on ultrasound) and per woman; 4. Ongoing pregnancy rate per woman (defined as a live pregnancy at 12 weeks onwards); 5. Live birth rate after 34 weeks per woman. Subgroup analysis: We will carry out subgroup analysis according to specific patient characteristics. These analyses will include, but not necessarily be limited to women with the following characteristics:1. Varying severity of adenomyosis; 2. Presence /absence of symptoms of adenomyosis; 3. Frozen vs. Fresh embryo transfer; 4. Short vs. long vs. ultralong ovarian stimulation protocol; 5. Recurrent miscarriages; 6. Other associations that may become apparent in post-hoc analyses.

NCT ID: NCT05304273 Recruiting - Miscarriage Clinical Trials

Comparison Between Letrozole and Mifepristone in Medical Termination of First Trimester Miscarriages

Start date: May 5, 2022
Phase: Phase 3
Study type: Interventional

Prospective interventional study where participants with non-viable pregnancy at 1st trimester will be randomized into two arms, one group will receive conventional treatment with oral mifepristone followed by misoprostol vaginally and another group will receive letrozole for three consecutive days followed by misoprostol vaginally in an attempt to terminate the pregnancy medically. Mean duration of induction to expulsion of product of conception and rate of complete abortion will be compared in two groups.

NCT ID: NCT05168865 Withdrawn - Miscarriage Clinical Trials

Letrozole Versus Hormonal Preparation in Frozen Cycles of PCOS Patients.

Start date: August 1, 2023
Phase: Phase 4
Study type: Interventional

One of the indications of freezing is to reduce the risk of ovarian hyperstimulation syndrome particularly in polycystic ovarian disease (PCOS) women. Very few RCTs addressed the issue of optimizing the endometrium for a frozen cycle. Interestingly, Letrozole for ovarian stimulation showed significantly better reproductive outcome when compared with hormone replacement therapy (HRT) cycle. In addition, HRT cycle has been associated with higher miscarriage rate when compared with natural cycle frozen embryo transfer. Nevertheless, there is not yet a well-designed prospective randomized study comparing letrozole and HRT in PCOS women undergoing frozen embryo transfer.

NCT ID: NCT05103098 Not yet recruiting - Miscarriage Clinical Trials

Sublingual Misoprostol In Medical Treatment of First Trimester Missed Miscarriage

Start date: November 1, 2021
Phase: N/A
Study type: Interventional

The aim of this work is to compare the effectiveness of sublingual misoprostol 400 mcg versus 800 mcg for medical treatment of the first trimester missed miscarriage.

NCT ID: NCT05094375 Not yet recruiting - Miscarriage Clinical Trials

Vaginal Misoprostol In Medical Treatment of First Trimester Missed Miscarriage

Start date: November 1, 2021
Phase: N/A
Study type: Interventional

Efficacy of vaginal misoprostol 600 Mg versus 800 Mg in termination of the first trimester missed abortion were assist

NCT ID: NCT05088720 Not yet recruiting - Miscarriage Clinical Trials

Misoprostol for Management of Women With an Incomplete Miscarriage

Start date: November 1, 2021
Phase: N/A
Study type: Interventional

Miscarriage is defined as the spontaneous loss of a pregnancy before 24 weeks gestation, that is, before fetal viability. The clinical signs of miscarriage are usually vaginal bleeding associated with abdominal pain and cramping. The miscarriage is named 'complete' or 'incomplete' according to whether or not tissues are retained in the uterus. If a woman has minimal bleeding but her cervix is closed, this is known as a 'threatened miscarriage. However; if the pregnancy is still inside the uterus but the cervix is open, this is described as an 'inevitable miscarriage', which it will not usually be possible to save the fetus.

NCT ID: NCT05088707 Not yet recruiting - Miscarriage Clinical Trials

Sublingual Versus Vaginal Misoprostol In Medical Treatment of Second Trimestric Missed Miscarriage

Start date: November 1, 2021
Phase: N/A
Study type: Interventional

The aim of this work is to compare the effectiveness of vaginal versus sub-lingual misoprostol for medical treatment of the second trimester missed miscarriage

NCT ID: NCT05039853 Not yet recruiting - Clinical trials for Post-traumatic Stress Disorder

Improving Mental Health Following Early PREgnancy Loss Using a Brief Cognitive Task

IMPREL
Start date: October 2021
Phase: N/A
Study type: Interventional

This is a randomised controlled trial designed to investigate the impact of a brief-cognitive task based intervention on intrusive memories, mental health symptoms and daily functioning, in women following an early pregnancy loss.

NCT ID: NCT04797338 Recruiting - Miscarriage Clinical Trials

Gonadotropin Releasing Hormone Agonist (GnRHa) Versus Estrogen and Progesterone for Luteal Support in High Responders

Start date: December 29, 2017
Phase: Phase 4
Study type: Interventional

Gonadotropin Releasing Hormone agonist (GnRHa) triggering is used as an alternative to human chorionic gonadotropin (hCG) in GnRH antagonist protocol to eliminate the risk of ovarian hyperstimulation syndrome (OHSS). However, its main disadvantage is a significantly lower pregnancy rate, hypothesized to result from a process called "luteolysis" (demise of the corpora lutea). In order to preserve a high pregnancy rates, several luteal support regimens were investigated, including an intensive estrogen and progesterone supplementation and a daily GnRHa treatment. However, no study, so far, compared the efficacy of these two regimens. Our aim is to compare the efficacy of GnRHa versus estrogen and progesterone supplementation for luteal phase support in high responders following GnRHa triggering.