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Marlena Fejzo, PhD

Clinical Assistant Professor of Population and Public Health Sciences in the Center for Genetic Epidemiology

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Overview

Marlena Fejzo is a Harvard-trained women’s health scientist who has published peer-reviewed articles on many diseases of women including ovarian and breast cancer, multiple sclerosis, and discovered the first genes for uterine fibroids, nausea and vomiting of pregnancy (NVP), and hyperemesis gravidarum (HG). Fejzo is a Clinical Professor at the University of Southern California, Chief Scientific Officer of The Morning Sickness and HG Clinic, Research Advisor of the HER Foundation, Board Member of the Foundation for Women’s Health, Member of the Women’s Health Network, and an advisor for NGM Bio. Fejzo is a 2024 Time Woman of the Year and Time 100 Health Honoree, received the National Organization of Women Victoria Mastrobuono Award in Women’s Health, Forbes 50-Over-50 award in Innovation, is a Falling Walls Breakthrough of the Year Finalist, and the inaugural BII & Science Translational Medicine Prize for Innovations in Women’s Health grand prize winner.

Publications

  • Publisher Correction: Multi-ancestry genome-wide association study of severe pregnancy nausea and vomiting. Nat Genet. 2026 May; 58(5):1186.. View in PubMed
  • Multi-ancestry genome-wide association study of severe pregnancy nausea and vomiting. Nat Genet. 2026 Apr; 58(4):810-820.. View in PubMed
  • Glucocorticoid treatment, lower growth and differentiation factor 15 concentrations, and improved hyperemesis gravidarum symptoms. Am J Obstet Gynecol. 2026 Aug; 235(2):e44-e46.. View in PubMed
  • Relationship between hyperemesis gravidarum and poor school performance unresolved. Am J Obstet Gynecol. 2026 Mar; 234(3):e118.. View in PubMed
  • Association Between Rare Variants in RELN and Its Receptor ApoER2 With Hyperemesis Gravidarum: A Whole-Exome Sequencing Study. BJOG. 2026 Jan; 133(1):181-182.. View in PubMed
  • Prepregnancy metformin use associated with lower risk of severe nausea and vomiting of pregnancy and hyperemesis gravidarum. Am J Obstet Gynecol. 2025 Dec; 233(6):649.e1-649.e14.. View in PubMed
  • Path to a cure for debilitating pregnancy sickness. Sci Transl Med. 2025 Apr 02; 17(792):eadw9351.. View in PubMed
  • Author Correction: A deep catalogue of protein-coding variation in 983,578 individuals. Nature. 2025 Jan; 637(8047):E26.. View in PubMed
  • Multi-ancestry GWAS of severe pregnancy nausea and vomiting identifies risk loci associated with appetite, insulin signaling, and brain plasticity. Res Sq. 2024 Dec 16.. View in PubMed
  • Multi-ancestry GWAS of severe pregnancy nausea and vomiting identifies risk loci associated with appetite, insulin signaling, and brain plasticity. medRxiv. 2024 Nov 20.. View in PubMed

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