About Us

We are an international group of clinicians and researchers whose mission is to promote evidence-based approaches to the treatment of gender dysphoria in children, adolescents and young adults.

Cases of gender dysphoria appear to be rising sharply worldwide. The profile of patients has changed, such that adolescent females are now in a majority. Trauma, mental health difficulties and neuro-developmental diagnoses are very common associations. What's causing these changes is unknown, and the lack of robust evidence for current 'gender-affirmative' interventions concerns us.

The history of healthcare shows many well-intentioned and initially promising interventions that led to unintended harms, such as opioid overuse. To ensure the best outcomes for patients, clinicians and researchers must engage in a sober, independent, rigorous and high quality review of the science. We must be faithful to the core principle of medicine: first do no harm.

Our Clinical Advisory Board

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Dr. William Malone

William Malone, MD is a board certified endocrinologist. He is a graduate of Stanford University (B.A., Human Biology) and New York University Medical School. He completed his residency in internal medicine and fellowship in endocrinology, diabetes, and metabolism at Los Angeles County/University of Southern California Medical Center.

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Dr. Julia Mason

Julia W Mason MS MD received her Master's Degree in Nutritional Sciences in 1993, and her M.D. in 1994 from the University of Illinois.  She finished her residency training in Pediatrics at Children's Hospital Los Angeles in 1997 and has worked as a newborn hospitalist, in urgent care, and as a pediatric hospitalist but primarily as a private general pediatrician for over 20 years. Dr. Mason is board certified in pediatrics and is a Fellow of the American Academy of Pediatrics.

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Dr. Kirsty Entwistle

Dr Kirsty Entwistle completed her Doctorate in Clinical Psychology (DClinPsy) at University College London in 2013. Prior to training she worked with young people in a range of contexts: education, youth work and social care. Her DClinPsy thesis investigated neurodevelopmental issues in a paediatric population. After qualifying as a Clinical Psychologist she worked in several NHS services including a paediatric psychology service at Addenbrooke's Hospital, Cambridge and, between 2017 and 2018, worked at The Tavistock Gender Identity Development Service (GIDS), Leeds. She is now based in Portugal and working independently. Dr. Entwistle is registered as a Clinical Psychologist with the UK Health Care Professions Council (HCPC) and as a Psychologist with the Ordem dos Psicologos Portugueses (OPP).

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Marcus Evans

Mr. Evans trained and worked as a consultant psychotherapist at the Tavistock & Portman NHS Foundation Trust and has over 35 years experience in mental health as a practitioner, supervisor, lecturer, and manager. He has also been in private practice in Beckenham since 1995.

Mr. Evans was one of the founding members of the Fitzjohn’s Service, for the treatment of patients with severe and enduring mental health conditions and/or personality disorder in the adult department at the Tavistock and holds a longstanding interest in the psychoanalytic understanding and treatment of mental health conditions.

He has written and taught extensively on this subject and authored ‘Making Room for Madness in Mental Health: the psychoanalytic understanding of psychotic communications’ published by Karnac in the Tavistock series.

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Lisa Marchiano LCSW

Lisa Marchiano is a clinical social worker and certified Jungian analyst in private practice in Philadelphia. She consults with parents of trans identifying teens and detransitioners. The author of the widely cited, “Outbreak: On Transgender Teens and Psychic Epidemics” (Psychological Perspectives 2017) Marchiano contributed chapters to two books about transgender children, adolescents, and young adults published by Cambridge Scholars. Her writings also have appeared in the online magazines Quillette and Areo.

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