21-23 May 2023 | Hybrid | Gothenburg, Sweden 

Satellite sites: Walton Oaks, UK or Athens, Greece

The event is postponed 

The Hackathon is postponed and will be re-scheduled for later in the year as an on-line event. New dates will be announced on the website and social media.
We hope to meet you all on-line!

Join the 1st Gravitate Health Hackathon that will take place from May 21 – 23, in a hybrid format, with on-site participation and opportunities for participants to attend virtually. The main site is Gothenburg, Sweden, during the Medical Informatics Europe 2023 (MIE 2023) and Vitalis conferences from May 22 to 25, 2023.

You may also join one of the satellite sites:

1 – Walton Oaks, Surrey, UK at Pfizer premises

2 – Athens, Greece at the Athens Chamber of Commerce and Industry


The Gravitate Health project, now in its third year, has already developed a federated open-source platform (FOSP) that is currently still in development. The goal of Gravitate Health is to empower and equip Europeans with health information for active personal health management and adherence to treatment.

The Hackathon provides a great opportunity to showcase the platform and invite participants to test its usability or build on it and contribute to its improvement. Constructive feedback will be valuable to the FOSP’s further development to serve its goals and new ideas may speed up its development.

The ePI, interoperability, and the FHIR standard are in the center of development of the FOSP, one of the main outputs of Gravitate Health.

Among the aims of the project is also to stimulate public-private partnerships to:

(i) Create market-specific applications which can accommodate specific needs of national or local ecosystems.

(ii) Build commercial solutions to serve specific disease areas and add value to the platform.


The Hackathon is held within the MIE 2023 & VITALIS conferences at the Swedish Exhibition & Congress Centre in Gothenburg, Sweden, an ideal environment for the event.

In such a setting, where two large and thematically related conferences―namely on medical informatics and e-health―take place, many diverse stakeholders will have the opportunity to participate and provide their insight and ideas.

Remote participation to the Hackathon is also open. In fact, we encourage teams to form in remote locations and connect to the main event in Sweden!

Hackathon satellite sites 

1 – Walton Oaks, Surrey, UK – Pfizer premises 

Courtesy of Pfizer UK

2 – Athens, Greece –  8, Amerikis Street 

Courtesy of the Athens Chamber of Commerce and Industry


Three prizes will be awarded to the Hackathon’s winning Teams:

1ST Prize

1000€ and free access to the MIE2023/VITALIS conference for all team members.

Free access to some seminars or tutorials in the conference.

2nd Prize

500€ and 42% discount* for the registration to the MIE2023/VITALIS conference for all team members.

3rd Prize

42% discount* for the registration to the MIE2023/VITALIS conference for all team members.

*The discount for Hackathon participants corresponds to 4000 SEK (400€).


In the context of Gravitate Health project, one of the most prominent objectives is to provide patients with the information they need about their medications. However, this information needs to be adapted to the context and preferences of the end-user to achieve effective and optimal understanding.

CHALLENGE 1: ePI Preprocessing

Create ePI preprocessing modules which―given a FHIR format ePI―will automatically add annotations to the content, keeping it in FHIR format.

ePI preprocessing modules do not need to address all annotations, they may focus on specific knowledge; ePI preprocessors may be stacked, i.e., executed sequentially, to generate a complete annotation of the ePI.

The annotation will employ standard terminologies such as SNOMED-CT, LOINC, ICD 10, ICPC-2, as well as International Patient Summaries (IPS’s). Automatic preprocessors are preferred since they will better address the scalability challenge of annotating thousands of ePIs. 

CHALLENGE 2: Gravitate Health Lens (G-lens) development

Develop G-lenses using:

(1) the Gravitate Health FOSPS*,

(2) ePIs with embedded semantic annotations (using standard terminologies such as SNOMED-CT, LOINC, ICD 10, iCPC-2),

(3) a persona vector i.e., the information relevant to the patient’s health in an International Patient Summary-IPS, and

(4) the patient’s current context and preferences, create a lens that effectively and optimally adapts the content to preferences and context to provide the patient with relevant information about his/her medicines. 

*FOSPS: federated open-source platform services

Note that:

  1. i) A theoretical model may also be accepted as a solution.
  2. ii) All personas created within GravitateHealthproject will be available for the Hackathon.

Read the detailed descriptions here:

April 18 – May 12: Pre-Hackathon Webinars
April 24 – May 22: Communication with participants / mentors
May 2 – 5: Formation of Teams Starts
May 21: Hackathon starts Sunday afternoon
May 22: Hackathon in progress
May 23: Hackathon ends Tuesday at noon
May 24: Award Ceremony

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Supported by a grant from IMI
This project has received funding from the Innovative Medicines Initiative 2 Joint Undertaking (JU) under grant agreement No 945334. The JU receives support from the European Union’s Horizon 2020 research and innovation programme, the European Federation of Pharmaceutical Industries and Associations [EFPIA], and Datapharm Limited. The total budget is 18.5M€ for a project duration of 60 months.

Information on this website reflects Project owner’s views and neither IMI nor the European Union, EFPIA, or or Datapharm Limited are liable for any use that may be made of the information contained herein.