No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
18 – 45
Sex
Female
Study type
Observational
Participants needed
84 (estimated)
Sponsor
University of Colorado, Denver · Other
Who this trial is looking for
This trial is looking for pregnant women who are having a scheduled cesarean delivery at high altitude or low altitude in Colorado. Participants will provide tissue samples to help researchers understand how living at high altitudes affects blood flow during pregnancy.
Are You a Good Fit for This Trial?
You may be able to join if
I am having a cesarean delivery at a scheduled time.
I am around 39 weeks pregnant.
You may not be able to join if
I have diabetes or gestational diabetes.
I have any high blood pressure issues during pregnancy.
I smoke.
I am pregnant with more than one baby.
I have had a preterm delivery.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
Pregnancy elicits adaptive changes in uteroplacental blood flow, which are altered at high altitude and may contribute to the observed 3-fold increase in intrauterine growth restriction (IUGR) and preeclampsia (PreE). The investigators propose to collect myometrial, cord blood, and placental tissue samples from women at high altitude (Summit County) and low altitude (Denver) in Colorado in order t…
Pregnancy elicits adaptive changes in uteroplacental blood flow, which are altered at high altitude and may contribute to the observed 3-fold increase in intrauterine growth restriction (IUGR) and preeclampsia (PreE). The investigators propose to collect myometrial, cord blood, and placental tissue samples from women at high altitude (Summit County) and low altitude (Denver) in Colorado in order to determine if residence at altitude during pregnancy changes the vasoreactivity of myometrial arteries (MA). If altered MA vasoreactivity is found, further studies may be able to link these changes to the increased rates of PreE and IUGR at altitude and contribute to the understanding of these two disorders.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Women scheduled for cesarean delivery at University of Colorado Hospital (Denver, 1600 m) and St. Anthony's Summit Medical Center (Summit County, 3000 m)
* Cesarean delivery at a prescheduled time without any labor, typically at 39 weeks gestation
Exclusion Criteria:
* Women…
Inclusion Criteria:
* Women scheduled for cesarean delivery at University of Colorado Hospital (Denver, 1600 m) and St. Anthony's Summit Medical Center (Summit County, 3000 m)
* Cesarean delivery at a prescheduled time without any labor, typically at 39 weeks gestation
Exclusion Criteria:
* Women will be excluded if there are co-existing medical diagnoses that are known to affect vascular parameters (i.e., diabetes mellitus, gestational diabetes, any hypertensive disorder of pregnancy, or a current smoker).
* Women with multiple gestations and preterm deliveries will also be excluded.
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