Join us at the 27th World Congress of IACAPAP 2026 in Hamburg!

Submission for oral presentation and poster abstracts is now closed.

We warmly thank all contributors for the overwhelming number of submissions. More than 800 abstracts were received, giving our reviewers plenty of exciting work ahead.

Late submissions cannot be accepted, and please note that changes to submitted abstracts are no longer possible.

If you have submitted an abstract, you may wait to pay your congress registration fee until you receive your acceptance or rejection notification at the end of February 2026 (even if you have received your invoice by email). Your registration will remain valid in the meantime; payment will be due once your notification has been issued. 

If you are chairperson or speaker of an accepted symposium, please note that the registration and payment was due 20 January 2026. The Scientific Committee reserves the right to exclude sessions from the programme if registration and payment are not completed. Notifications will be sent within the next few days if the acceptance status of a symposium has been changed. 

The Early Bird registration period has ended as well. Regular congress fees apply from now until 30 April 2026.

From digital safety to global equity, biology of ADHD, and climate resilience, this year’s keynote lectures bring you bold, practice-changing insights from leading voices around the world. Jörg M. Fegert (Germany) explores Beyond the screen: Protecting children in the digital age, addressing technology‑assisted risks and the systems needed to keep young people safe. Barbara Franke (The Netherlands) traces the journey from basic science to clinical applicability in Biological mechanisms of ADHD across the lifespan. Yewande Olufunmilayo Oshodi (Nigeria) amplifies Voices from the Global South, challenging stigma and inequity with locally grounded solutions.

We’ll also dive into mechanisms of treatment with Argyris Stringaris (UK), unpack nonsuicidal self-injury with Paul L. Plener (Austria), and outline a global training framework with Ayesha Mian (Pakistan). Tycho Dekkers (The Netherlands) calls for a more contextual narrative of ADHD, while Andrés S. Martin (USA) and Cecil Prins‑Aardema (The Netherlands) offer candid reflections on clinicians’ lived experience. Laelia Benoit (France) spotlights climate change and youth mental health; Sven Bölte (Sweden) presents Psychiatry 2.0 using WHO’s ICF; and Bruno Falissard (France) asks whether our field carries invisible colonial dynamics.

Plus, a growing roster of confirmed keynote speakers, including Hilary Cass (UK), Kapil Sayal (UK), Chiara Servili (Switzerland), Philip Shaw (UK), Guilherme V. Polanczyk (Brazil), Ilina Singh (UK), Olayinka Olusola Omigbodun (Nigeria), Tobias Banaschewski (Germany), and Dixon Chibanda (Zimbabwe), will help you rethink the future of care across systems, cultures, and contexts.

Don’t miss this opportunity to engage with cutting-edge research, challenge assumptions, and connect with a global community of experts. Register now and be part of the conversation that will shape the future of child and adolescent mental health.

Discover the Preliminary Programme Structure

The preliminary programme structure is now available giving you a first look at the congress schedule, including symposia, keynotes, workshops, poster sessions, technical exhibitions, and networking events. This early overview is designed to help you make informed hotel and travel arrangements, ensuring a smooth and productive experience in Hamburg.

Join the Global Adolescent Advisory Board (GAAB): Call for Young Voices

Are you aged 14–19, passionate about mental health, and keen to make a difference? The Global Adolescent Advisory Board (GAAB) is calling for motivated youth from around the world to join its network. The GAAB connects motivated adolescents from around the world to collaborate with experts, share their perspectives, and co-create innovative ideas for improving mental health literacy.

until IACAPAP 2026 opens its doors!