• Abstract submission: 15 September to 12 November 2025
• Late-breaking abstract submission: 25 March to 8 April 2026

Matthias Guckenberger (CH) – Chair of the Congress & Chair, Interdisciplinary Track

• Barbara Alicja Jereczek-Fossa (IT) – Co-Chair, Interdisciplinary Track
• Frank-André Siebert (DE) - Chair, Brachytherapy Scientific Advisory Committee
• Susan Lalondrelle (UK) - Chair, Clinical Radiotherapy Scientific Advisory Committee
• Cristina Garibaldi (IT) - Chair, Radiation Physics Scientific Advisory Committee
• Paul Span (NL) - Chair, Radiobiology Scientific Advisory Committee
• Rita Simões (UK) - Chair, Radiation Therapy Scientific Advisory Committee
• Azadeh Abravan (UK) & Pierre Montay-Gruel (BE) - Chairs, Early Career Track

Members: Anna Kirby (UK), Vratislav Strnad (DE), Icro Meattini (IT), Christian Richter (DE), Monica Mangoni (IT), Maeve Kearney (IE), Dylan Callens (BE), Daniel Portik (RO), Uulke van der Heide (NL), Catharine Clark (UK), Luca Boldrini (IT), Pierre Blanchard (FR)

Scientific Advisory Groups:

BRACHYTHERAPY

Frank-André Siebert (DE) - Chair

Jean-Michel Hannoun-Levi - Co-Chair (FR), Members: Gemma Eminowicz (UK), Alfonso Gomez de Iturriaga (ES), Peter Niehoff (DE), Bradley Pieters (NL), Andrea Slocker-Escarpa (ES), Alex Stewart (UK), Vratislav Strnad (DE), Alina Sturdza (AT), Luca Tagliaferri (IT), Åsa Tedgren (SE), Piotr Wojczesiek (PL)

CLINICAL RADIOTHERAPY 

Susan Lalondrelle (UK) - Chair

Ananya Choudhury - Co-Chair (UK), Members: Nicolaus Andratschke (CH), Pierluigi Bonomo (IT), Jon Cacicedo (DE), Frances Duane (IE), Corinne Faivre-Finn (UK), Cihan Gani (DE), Gabriella Macchia (IT), Icro Meattini (IT), Rebecca Muirhead (UK), Piet Ost (BE), Gitte Persson (DK), Sofia Rivera (FR), Mateusz Spalek (PO), Eva Versteijne (NL), Thomas Zilli (CH)

RADIATION PHYSICS 

Cristina Garibaldi (IT) - Chair

Charlotte Robert - Co-Chair (FR), Members: Marianne Aznar (UK), Jenny Bertholet (CH), Till Böhlen (CH), Laura Cella (IT), Catharine Clark (UK), Paul Doolan (CY), Dietmar Georg (AT), Victor Hernandez (ES), Tomas Janssen (NL), Nuria Jornet (ES), Lorenzo Placidi (IT), Christian Richter (DE), David Sarrut (FR), Edmond Sterpin (BE), Vicki Taasti (DK), Daniela Thorwarth (DE)

RADIOBIOLOGY 

Paul Span (NL) - Chair

François Paris - Co-Chair (FR), Members: Marleen Ansems (NL), Anna Dubrovska (DE), Marco Durante  (DE), Franziska Eckert (AT), Monica Mangoni  (IT), Laure Marignol (IE), Inigo Martinez-Zubiaurre (NO), Francesco Pasqualetti (IT), Bartek Tomasik (PL), Conchita Vens (UK)

RADIATION THERAPY 

Rita Simões (UK) - Chair

Sophie Boisbouvier- Co-Chair (FR), Members: Bárbara Barbosa (PT), Aileen Duffton (UK), Maeve Kearney (IE), Siret Kivistik (EE), Mirjam Mast (NL), Perryck Sophie (CH), Yolanda Surjan (AU), Yat Man Tsang (CA), Eva Van Weerd (NL), Claudio Votta (IT)

EARLY CAREER

Azadeh Abravan (UK) & Pierre Montay-Gruel (BE) - Chairs

Jenny Bertholet (CH), Sandra Classen (DE), Laia Humbert Vidan (US), Naman Julka-Anderson (UK), Lisette Juul Sandt (DK), Federico Mastroleo (IT), Daan Nevens (BE), Andrada Turcas (RO), Miet Vandemaele (BE), Eliana Vasquez Osorio (UK)

The ESTRO annual meeting is growing at an accelerated pace, with record numbers of delegates and submitted abstracts in 2025. With the Championing Scientific Excellence initiative, we aim to make ESTRO 2026 THE event to submit your TOP research to. To achieve this, we are implementing various innovations to highlight your work and disseminate it to the widest audience.

CALL FOR ABSTRACTS: Green Journal Collaboration with The Lancet Oncology

After the enormous success at ESTRO 2025, Radiotherapy & Oncology (the Green Journal) and The Lancet Oncology are once again joining forces for ESTRO 2026. The top clinical trials and other transformative research abstracts will be selected for a special Green Journal - The Lancet Oncology joint session and could be published in either journal.

Letter from the Editors-in-Chief and ESTRO President

ABSTRACT SUBMISSION DEADLINES

The deadlines for both regular abstract submission and late-breaking abstract submission have been moved back to ensure that you are able to submit your most up-to-date science to the congress.

• Regular abstract submission deadline: 12 November 2025
• Late-breaking abstract submission deadline: 8 April 2026

ABSTRACT PRESENTATIONS

The latest research will be presented in a plenary setting, without other sessions taking place in parallel, ensuring maximum exposure for the most up-to-date science. Many of your proffered papers will be followed by discussants to highlight the presented science. Some sessions will also include a panel of experts to discuss the importance of your presented work.

All abstract presentations, from proffered papers to mini-orals to poster discussions, will be recorded to ensure that delegates have the chance to see all your research submitted to the congress.

With the increasing number digital posters included in the programme, a new category of Poster Highlights will be implemented in 2026. This will give the opportunity for the top-scoring digital posters to be promoted and give you the chance to network with delegates and discuss your work.

The abstracts scoring in the top 5% will receive a certificate attesting to the quality of the submitted science.

MEDIA ACTIVITIES

We will build on the success of the press activities of ESTRO 2025, inviting more journalists to cover the breaking science and latest research presented at the congress. Along with social media ambassadors and daily congress email reports, communications before, during and after the congress will promote the important work you will present at the congress.

Abstract submission for ESTRO 2026 is now open. The deadline for submission is 12 November 2025, 23:59 CET.

The peer review and selection process take place in December and January. Selection results will be communicated early-February 2026.

CALL FOR ABSTRACTS: GREEN JOURNAL COLLABORATION WITH THE LANCET ONCOLOGY

After the enormous success at ESTRO 2025, Radiotherapy & Oncology (the Green Journal) and The Lancet Oncology are once again joining forces for ESTRO 2026.  The top clinical trials and other transformative research abstracts will be selected for a special Green Journal - The Lancet Oncology joint session and could be published in either journal.

Submit your abstract by 12 November 2025 for a chance to present your research at this prestigious session and see your work published in one of these leading journals.

LATE-BREAKING ABSTRACTS

Late-breaking abstract submission opens on 25 March 2026. The deadline for submission is 8 April 2026, 23:59 CET.

Late-breaking abstracts must present timely findings which were not available at the time of the deadline (12 November 2025). The late-breaking abstract deadline is not intended to be a second deadline for abstract submissions. Abstracts deemed to not be truly late-breaking are rejected. The late-breaking submission guidelines will be available soon.

ESTRO offers various travel grants to assist members in attending ESTRO 2026.

Registration will open in October. Further information will follow. If you have any questions, please contact us at events@estro.org. 

An exhibition featuring equipment and medical publishers will be held in the Exhibition area. The exhibition will open on Friday evening with the Networking evening and will remain open to the visitors from Saturday to Monday. Entrance is free for all registered participants. Companies and publishers who would like to participate in the exhibition may obtain more detailed information from the ESTRO Office.

Please find here:

• Rules & Regulations of ESTRO 2026 
• Exhibition Floorplan 

Booking Forms:

• Exhibition Space Rental 
• Satellite Symposium Session
• Advertising & Sponsoring

If you have any questions, please contact Hande Van Gestel

WARNING

There are an increasing number of fraudulent websites impersonating ESTRO 2026 and we would like to warn all participants to be aware of possible scams and strongly advise that you only use the official housing partner, Congrex Switzerland, when making reservations.

Venue

Stockholmsmässan

Mässvägen 1

125 30 Älvsjö

Sweden

Nordens Främsta Mötesplats | Stockholmsmässan

Accomodation

Congrex Switzerland is the official congress partner for hotel accommodation and is the only agency offering accommodation on behalf of the ESTRO 2026 Conference.

As the official ESTRO 2026 accommodation partner, Congrex Switzerland offers highly dedicated customer service and professional support for all your accommodation needs.

Individual Reservations and Small Groups (up to 8 rooms):

Our booking tool offers you great deals in a wide range of hotels, from budget to high standard properties all over the city of Stockholm. Early booking is highly recommended as rooms typically sell fast in prime locations. Bookings can be made directly online via the above link.

Group Reservations (from 9 rooms):

For further information, up-to-date availability and reservation, please contact us at hotel.estro@congrex.com

For enquiries, please contact the official accommodation partner:

Congrex Switzerland Ltd.

Reinacherstrasse 131

CH-4053 Basel

Tel: +41 61 686 77 94

E-Mail: hotel.estro@congrex.com