First-Trimester Nutrition Scoring Enters a Multicentre Pregnancy Cohort in Italy
A prospective multicentre Italian cohort is taking a close look at a problem obstetric care has long struggled to address consistently: how to identify nutritional risk early enough in pregnancy to matter. The SIMPLE study is designed to examine whether a first-trimester nutritional score tracks with early placental function markers and later pregnancy outcomes in singleton pregnancies. Its aim is practical and clinically familiar. Pregnancy is a period when dietary habits, micronutrient gaps, and excess weight can intersect with placentation, fetal growth, and downstream obstetric risk, yet routine nutritional screening remains uneven in day-to-day care.
The study protocol centers on a simple, reproducible checklist collected at the first-trimester combined screening visit, between 11+0 and 13+6 weeks of gestation. That timing is strategically chosen. By the time a pregnant patient reaches this ultrasound window, placental development is already underway, and early physiologic signals can be assessed alongside fetal biometry. Investigators plan to relate maternal nutritional habits to a set of fetal, uteroplacental, and biochemical measures that are already embedded in many first-trimester assessments, making the approach attractive for real-world implementation if the associations prove clinically useful.
One sentence captures the ambition of the protocol plainly: it is trying to turn a brief dietary screen into an early obstetric risk signal.
Placental Markers, Fetal Biometry, and a Low-Cost Clinical Workflow
The cohort will enroll healthy singleton pregnancies during the standard first-trimester ultrasound visit. At that point, the nutritional score will be used to measure adherence to a healthy diet and to identify nutritional deficiencies. The protocol does not rely on an elaborate or resource-heavy framework. Instead, it pairs the score with information already available during prenatal screening, including crown-rump length, nuchal translucency, biparietal diameter, and femur length. These measurements reflect fetal development at a stage when early growth patterns can still be contextualized against maternal physiology.
The uteroplacental component is equally important. The study will collect placental volume and uterine artery Doppler velocimetry, both of which provide insight into placentation and uterine blood flow. In parallel, biochemical placental markers will be obtained, specifically pregnancy-associated plasma protein A and free ß-human chorionic gonadotropin. Together, these markers create a layered view of early pregnancy biology: fetal size, placental structure, uterine perfusion, and circulating proteins linked to placental function. That combination gives the study a strong biologic rationale, because nutritional inadequacy in early gestation may influence trophoblast invasion, placental vascular remodeling, and the endocrine environment that supports fetal growth.
The design is longitudinal rather than cross-sectional. Second- and third-trimester ultrasound records will be gathered, and birth outcomes will be retrieved from medical registers. That sequence matters because early placental signals are only part of the story. A nutritional profile that appears modest in the first trimester could still correspond to altered later growth trajectories, delivery outcomes, or placental adaptation. The investigators are therefore building a bridge from early maternal diet to pregnancy course at multiple time points rather than treating the first scan as an isolated event.
Why a Simple Score Could Matter at the Bedside
Pregnancy nutrition assessment often sits in an awkward place between public health advice and clinical action. Patients may receive broad guidance on healthy eating, but clinicians frequently lack a fast, standardized way to translate dietary history into a usable risk screen. The SIMPLE study is explicitly built around that gap. Its nutritional score is intended to be time-saving, low-cost, and reproducible, which makes it suitable for routine antenatal practice if the associations are robust enough to support implementation.
The logic is straightforward. Poor adherence to nutritional guidance and micronutrient deficiencies remain common, even in industrialized settings. Obesity is also widespread, and both undernutrition at the micronutrient level and excess caloric intake can disrupt pregnancy biology. Placental development is especially sensitive to the maternal metabolic environment in early gestation, when implantation and vascular remodeling are still evolving. A dietary screen that aligns with placental markers could offer a practical way to identify pregnancies that may benefit from targeted counseling or corrective measures before later complications emerge.
The protocol also reflects the broader reality that pregnancy care needs tools that can be deployed quickly during routine visits. A complex dietary instrument may be difficult to sustain in busy clinics. A concise nutritional checklist, if it proves informative, could fit naturally into existing first-trimester ultrasound workflows without adding major operational burden. In that sense, the study is less about inventing a new pathway than about finding a dependable way to attach nutritional information to a moment in care when placental biology can still be observed.
Cohort Design, Ethics, and What This Study Can and Cannot Answer
The SIMPLE study has ethical approval from the Milano Area 1 Ethics Committee, with approval obtained before research began. The dissemination plan includes presentation of abstracts and findings at national and international scientific meetings. Those details matter because the protocol is meant to generate evidence that can be shared across obstetric and perinatal research settings, not kept within a single center.
The study is also bounded by what a protocol can accomplish. At this stage, it does not provide results, effect sizes, or outcome estimates. It cannot yet show whether the nutritional score will predict placental dysfunction, whether it will correlate more strongly with ultrasound markers or biochemical markers, or whether any observed associations will be strong enough to change practice. Those questions remain open until the cohort is completed and the data are analyzed.
Still, the structure of the project is clinically sensible. By combining a nutrition score with first-trimester ultrasound and placental biomarkers, investigators are testing whether an early, inexpensive screening step can map onto measurable pregnancy physiology. If the score proves informative, it could help clinicians move from generalized dietary advice toward a more targeted approach in early pregnancy. If it does not, the study will still clarify how much signal a brief nutritional screen can realistically contribute to placental assessment in contemporary obstetric care.