Copenhagen, June 3-5, 2021

Welcome to the 3rd Childhood Leukemia Early Adverse Reactions (CLEAR) conference

The organizing committee is looking forward to welcoming you to the 3rd CLEAR conference focusing on childhood leukemia early adverse reactions from June 3rd to 5th 2021 in Copenhagen (Denmark).

The CLEAR 2021 conference will explore and discuss the clinical perspective of host-, disease- and treatment-related adverse reactions in children with ALL and AML.

The conference is an opportunity to interact with experts in the field and build clinical and research partnerships with colleagues from around the world on these important topics.

Scientific abstract submission opens early 2021, and young researchers will be eligible for awards for best oral and poster presentations.

Conference topics
  • Toxicity capture and registration
  • Leukemia prone syndromes and toxicity
  • Toxic death and tumor lysis syndrome
  • Infections
  • Inflammation and mucositis
  • Asparaginase hypersensitivity
  • Asparaginase-associated pancreatitis
  • Thromboembolism
  • High dose methotrexate and renal toxicity
  • Bone toxicities incl. osteonecrosis
  • Physical exercise in pediatric cancer
  • Acute neurotoxicities
  • Fertility preservation
  • Acute toxicities in the AYA group
  • Novel agents and toxicities
  • CAR-T and toxicities
  • Psychosocial perspectives
  • Quality Survival
CLEAR conference logo

Abstract Submission and Guidelines

The CLEAR organizing committee invites for abstract submission.
Abstracts must contain new, previously unpublished material.
All abstracts must be submitted by email to
Abstract submission opens


Submission deadline

March 1st, 2021
(Midnight EST)

Abstract notification

March 14th,

Presentation types

Abstracts may be submitted for oral presentation or poster.
Format Guidelines
Abstracts must be submitted in English.
The word limit is 500  words (1A4 page ), with normal margins (3 cm top and bottom, 2 cm left and right), 1.15 spacing, font style Calibri  and font size: 11
Affiliation i.e. name and work place of corresponding author (placed below title)
Abstracts are not to include tables or images.
Files must be less than 2 MB. Allowed file types: txt, doc, docx.
Abstracts are submitted via email to:

General Content Guidelines

Abstracts must report research within the field of early adverse reactions to hematological malignancies. 
The content may not promote the proprietary interests of any commercial entity. Evident bias in favor of a product or company is grounds for rejection.
Content must be restricted to scientific and clinical studies.
All images on posters must not conflict with rules of copyright. Please ensure that you have permission to use images.
Abstracts og studies that have already been published should NOT be submitted to this meeting.

Abstract format

Background and aims
Conclusions and perspectives
Abstract selection and awards
Abstracts are evaluated and scored anonymously by the CLEAR scientific committee. The committee will decide whether abstracts are accepted for presentation and/or poster.
Two abstracts will be selected for an abstract award.
Accepted abstracts will be published on the CLEAR website and in the conference booklet.

Venue and Accomodation

The conference is held at Comwell Borupgaard just 50 km North of Copenhagen

Comwell Borupgaard

Rooms are available at the hotel conference venue and can be booked at reduced rates by emailing to:
Please state your attendance in the CLEAR conference to access reduced rates.

Single room: 70€ per night (500 DKK)
Double room: 110€ per night (800 DKK)

Reduced rates are available on from June 3rd to June 5th.
If you are travelling from outside Europe, you may book rooms at reduced rates from June 2nd.

Nørrevej 80, 3070 Snekkersten
Phone: (+45) 48 380 333

The location is easily reached with train directly from Copenhagen Airport. The train departs every 20 minutes from Airport terminal 3 with end destination Elsingore. Your destination is the second last stop, Snekkersten, at which you will arrive after 50 minutes. There is short walk from the train station to Comwell Borupgaard (5 min.). Train tickets can be bought at ticket machines inside the airport. You will need a ticket for all zones (116 DKK / 16 Euros). The machines accept all major credit cards.

Taxis are found at the Airport outside Terminal 3. The drive is approximately 50 minutes.
Price is approximately 1000 DKK / 140 Euros. Please note that Uber does not operate in Denmark.

Registration and Key Dates

Early bird registration before
April 1st, 2021

240 €
(1800 DKK)

Registration after April 1st

375 €
(2800 DKK)

Conference fee
Lunch on June 3rd, 4th and 5th
Get-together-dinner on June 3rd
Celebratory dinner on June 4th
Cold and warm beverages, fruit and snacks during the conference

If you have food allergies or other dietary restrictions, please inform us by emailing to  and we will do our best to accommodate your requests.

Please note that the registration fee does NOT include accommodation.

If the conference is cancelled or postponed due to coronavirus, the registration fee will be refunded.

Register here