Aspirin to Prevent Preeclampsia in Women With Elevated Blood Pressure and Stage 1 Hypertension (ASPPIRE)
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- Development of Hypertensive Disorder
研究概览
简要总结
To determine if low dose aspirin reduces the incidence of hypertensive disorders of pregnancy (gestational hypertension, preeclampsia, eclampsia, and HELLP syndrome) in pregnant women with stage 1 hypertension and elevated blood pressure.
详细描述
At the baseline visit, women will go through informed consent and review of study eligibility. Objectives of the study, participation requirements, eligibility inclusion and exclusion will be reviewed in detail. If these are not met, the woman is excluded from the study. If she meets inclusion criteria, a checklist of exclusion criteria will be reviewed. If any exclusions are met, the woman is excluded from the study. The consent form will be reviewed in detail. If the woman consents and signs all pages of the form, randomization follows.
Randomization will be done in a 1:1 allocation ratio between the treatment and placebo arms, stratified by blood pressure group (elevated blood pressure and stage 1 hypertension). A computer algorithm will assign participant based on random permuted blocks design with block size between 2-4 within each strata. Each participant will have an assigned Study ID number that is linked to their random assignment.
Participants will be contacted by telephone 1 week after randomization. The purpose of this visit is to ensure the participant has received study medication and initiated the regimen.
The third encounter will be 6 weeks (+/- 1week) after randomization in person to coincide with routine prenatal visit or via telephone. The purpose of this study visit is to review their pregnancy course, use of study medications, any side effects, difficulties with the study, and have opportunities to make comments and/or ask questions. The participants will be asked to bring their study medication for pill count at the time of this encounter, if the study visit is able to be performed in person. Study participants will continue their routine prenatal care with pregnancy management performed routinely per their provider.
The fourth encounter will be 16 weeks (+/- 1week) after randomization in person to coincide with routine prenatal visit or via telephone. If the participant is already delivered by this time, the visit will be performed via telephone postpartum. The purpose of this study visit is to review their pregnancy course, use of study medications, any side effects, difficulties with the study, and have opportunities to make comments and/or ask questions. The participants will be asked to bring their study medication for pill count at the time of this encounter, if the study visit is able to be performed in person.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Singleton pregnancy
- •Elevated blood pressure (At least 2 systolic BP 120-129 mm Hg within 1 year pre-pregnancy until 20 weeks gestational age on at least 2 separate healthcare encounters) or Stage 1 hypertension (At least 2 systolic BP 130-139 and/or diastolic BP 80-89 within 1 year pre-pregnancy until 20 weeks gestational age on at least 2 separate healthcare encounters)
- •Speaks English or Spanish
- •Informed and written consent
- •Confirmed single live intrauterine pregnancy (confirmed by positive cardiac motion by transvaginal or transabdominal ultrasound)
排除标准
- •Chronic hypertension
- •Pre-gestational diabetes
- •Chronic renal disease
- •diagnosis of stage 1 chronic kidney disease or higher and/or GFR <60 mL/min with duration at least 3 months and/or history of kidney transplantation and/or undergoing peritoneal or hemodialysis
- •Systemic lupus erythematous
- •Antiphospholipid antibody syndrome (diagnosis made by having 1 or more clinical criteria and 1 or more laboratory criteria)
- •Clinical criteria: venous thrombosis, arterial thrombosis, obstetric complications (3 or more unexplained consecutive spontaneous abortions <10 weeks gestation, 1 or more unexplained deaths of a morphologically normal fetus after 10 weeks gestation, 1 or more premature births before 34 weeks gestation attributable to placental insufficiency, including severe preeclampsia or fetal growth restriction)
- •Laboratory criteria: lupus anticoagulant, anti-cardiolipin IgG or IgM with titer >99th percentile, anti-beta 2 glycoprotein IgG or IgM with titer >99th percentile. Laboratory result must be positive twice at least 12 weeks apart
- •Multifetal gestation
- •20 weeks gestation at time of randomization based on American College of Obstetricians and Gynecologists dating criteria. Dating will be based on last menstrual period (LMP) if regular, sure LMP is available that agrees with ultrasound dating. Otherwise, earliest ultrasound will be used for dating purposes.
- •Prior history of hypertensive disorder of pregnancy
- •Current pregnancy with known chromosomal, genetic, major malformations or fetal demise, or planned termination of pregnancy
- •Women with contraindications to taking aspirin (bleeding diathesis such as Von Willebrand's disease, peptic ulcer disease, aspirin hypersensitivity, nasal polyps, asthma with aspirin-induced bronchospasm, severe liver disease).
- •Concurrent participation in another study that influences risk of preeclampsia
- •Women who do not plan to deliver within the YNHH system
研究组 & 干预措施
Aspirin
Participants randomized to 81 mg of Aspirin daily
干预措施: Aspirin 81 mg (Drug)
Placebo
Participants randomized to placebo daily
干预措施: Placebo (Drug)
结局指标
主要结局
Development of Hypertensive Disorder
时间窗: after 20 weeks gestation until 6 weeks postpartum
This measure is operationally defined as a yes/no response to the development of any hypertensive disorder of pregnancy (gestational hypertension, preeclampsia, eclampsia, or HELLP syndrome). This is defined by American College of Obstetricians and Gynecologists diagnostic criteria.
次要结局
- Development of Preeclampsia- 37 Weeks(up to 37 weeks gestation)
- Development of Preeclampsia- 34 Weeks(up to 34 weeks gestation)
- Development of Preeclampsia(after 20 weeks gestation until 6 weeks postpartum)
- Spontaneous Preterm Delivery(Up to 34 weeks)
- Birthweight(day of life 0)
- Development of Gestational Hypertension(after 20 weeks gestation until 6 weeks postpartum)
- Development of HELLP Syndrome(after 20 weeks gestation until 6 weeks postpartum)
- Neonatal ICU Admission(Birth until 1 year of age)
- Stillbirth(after 20 weeks gestation until delivery)
- Neonatal Adverse Events(Birth until 1 year of age)
- Development of Eclampsia(after 20 weeks gestation until 6 weeks postpartum)
- Fetal Growth Restriction(after 20 weeks gestation until delivery)
- Placental Abruption(after 20 weeks gestation until delivery)