Computerized CTG self-monitoring versus standard Doppler assessment in late-onset fetal growth restriction (cosmos): a pilot randomized controlled trial

PURPOSE: Late-onset fetal growth restriction (FGR) presents clinical management challenges, often requiring frequent in-hospital fetal surveillance. Telemedicine-based computerized cardiotocography (cCTG) performed at home may offer a viable remote monitoring addition. METHODS: This single-center, open-label, a pilot randomized controlled pragmatic trial (COSMOS) was conducted in Warsaw, Poland, between 2022 and 2025. A total of 120 women with late-onset FGR, defined according to the Delphi criteria, were randomly assigned (1:1) to either a cCTG-based monitoring approach with protocol-mandated safety Doppler assessments or to standard hospital-based Doppler surveillance. The primary outcome was neonatal condition at birth (Apgar score at 5 min, umbilical artery pH). Secondary outcomes included emergency cesarean section for fetal compromise, maternal anxiety, measured using the Generalized Anxiety Disorder 7-item scale…