Registries, Data Management and Analysis

The ERN eUROGEN patient registry is currently being implemented by its participating Healthcare Providers (HCPs). The aim of this registry is to collect individual data from patients suffering from rare urogenital diseases or complex conditions.

Until now, very limited data has been gathered about disease progression, surgical procedures and treatment outcomes, and the few existing databases are not standardised, fragmenting and scattering the information. Moreover, there is a lack of long-term follow-up of the treatment outcome into adolescence and adulthood, which hinders the improvement of treatments over time.

Patient Information Video

This video explains the concept of the ERN eUROGEN registry for patients.


The ERN eUROGEN registry has several objectives:

  • The ERN eUROGEN registry will enable the identification of contemporary cohorts of patients with rare uro-recto-genital diseases for clinical research such as studies of diagnostic tools and prognostic biomarkers as well as interventional trials evaluating novel drugs and treatment protocols.
  • The ERN eUROGEN registry will enable monitoring of diagnostic and treatment procedures at the healthcare providers (HCPs) which is very important because for most rare uro-recto-genital diseases and complex conditions no clear guidelines on these procedures are available.
  • Finally, the ERN eUROGEN registry will enable research into the diagnosis, treatment and outcome or prognosis of rare uro-recto-genital diseases. It will help us to gain knowledge about the course of the diseases and the effect of different treatments.

The final ERN eUROGEN registry for all 114 rare uro-recto-genital diseases will benefit patients and their families who go through a diagnosis odyssey, physicians who will learn about rare and complex conditions and get new insights into the best treatment options, and scientists who are looking for patient cohorts for future research and clinical trials.


The Principal Investigators at Healthcare Providers (HCPs) involved in ERN eUROGEN as Full Members or Affiliated Partners will make sure that implementation of the ERN eUROGEN registry complies with the rules and regulations of their HCP. This may mean that they need to apply for local approval for the implementation of the ERN eUROGEN registry. Participation in the ERN eUROGEN registry is also open to other HCPs.

HCPs will start with retrospective inclusion if they are recognised as a centre of expertise for one or more of the five disease areas for which the Clinical Practice Snapshots were initially developed (1.5 posterior urethral valves, 1.7 anorectal malformations, 1.8 paediatric kidney transplantations, 2.1 complicated & pelvic floor disorders: AMS800 and 3.3 adrenal tumours). These HCPs will start with the prospective inclusion of new patients three months after the start of the retrospective inclusion (which will by then be finalised).

HCPs that are not recognised as a centre of expertise for the five disease areas will start prospective inclusion immediately. For prospective inclusion, all patients treated for a rare uro-recto-genital disease or complex condition for which the HCP is recognised as a centre of expertise will be asked for informed consent using the ERN eUROGEN Informed Consent Forms.

In the retrospective inclusion, all HCPs will make sure that the last 50 new patients per disease area who visited the HCP before 1 January 2022 are identified and asked for their informed consent to have their data entered in the ERN eUROGEN registry. This will be done by sending the specific Patient Information letter for retrospective inclusion and Informed Consent Forms via regular mail to the patient and/or their parents, depending on the age of the patient.

Only patients who provided (or whose parents/legal representatives provided) informed consent will be included in the ERN eUROGEN registry.


The ERN eUROGEN platform will be built on the collection of core data set elements and domain-specific elements for specific rare uro-recto-genital diseases.  Thus the registry will comprise the following sets of data:

  1. The JRC common data set (CDE), defined by the EU RD Platform, has 16 data elements describing the general health status of patients. The CDE is common to all rare disease registries, the connecting point for all ERN databases, and ensures that individuals are uniquely identified and not duplicated in different rare disease registries.
  2. Urogenital ”Clinical Practice Snapshots” initially consisting of six clinical questions (around 10 data elements) per Expertise Area that describe the care pathway of patients in the first year after the start of the treatment for the rare urogenital disease or complex condition. These data enable us to perform a snapshot of the current clinical practices in the EU. Clinical Practice Snapshots have been developed for the following Expertise Areas: 1.5 posterior urethral valves, 1.7 anorectal malformations, 1.8 paediatric kidney transplantations, 2.1 complicated & pelvic floor disorders, 3.2 testicular cancer, and 3.3 adrenal tumours. We are currently working on the Clinical Practice Snapshots for the other Expertise Areas.
  3. In addition, the dataset will be expanded with clinical Follow-Up forms that will collect information on further treatments and outcomes. These are currently under development.
  4. We will also send out Patient Reported Outcome Measures (PROM) questionnaires. There will be questionnaires about satisfaction with the care process (H-care survey) and about health-related quality of life (PedsQl questionnaire for patients from Workstream 1 and SF-36 or RAND-36 for patients from Workstream 2 and Workstream 3).

Schematic overview of data collection in the ERN eUROGEN registry. Note that the shaded colours of blue indicate who will fill out the information and that part of the Informed Consent forms and PROM questionnaires are filled out by either patients or their parents, depending on the patient’s age.

The data in the ERN eUROGEN Registry will be made Findable, Accessible, Interoperable, and Reusable for humans and computers (i.e., FAIR). To achieve this, ERN eUROGEN will work with Bruna Dos Santos Vieira, “FAIRification” Steward, European Joint Program on Rare Diseases (EJP-RD).

Data Access

The ERN eUROGEN registry will be implemented in Castor using a Data Processing Agreement between the Radboudumc and Castor. Only Healthcare Providers who signed the Data Sharing Agreement will obtain access to the online registry. Access of authorized users to the online registry is controlled by the assignment of a secure, individualised password.

Scientific Researchers, clinicians, patient organisations, policymakers, companies, etc., are invited to apply for utilisation of the data from the ERN eUROGEN registry. The process of requesting data is described in the Data Access and Sharing Policy.

Projects Granted Access

No projects have been granted access to the data in the ERN eUROGEN registry yet.

Research Results

The first reports comparing clinical practice among different Healthcare Providers were generated for the Common Data Elements, Posterior Urethral Valves, Anorectal Malformations, Complicated & Complex Pelvic Floor Disorders treated with the AMS800 device, and Adrenal Tumours.


The stakeholders of the ERN eUROGEN Registry are the groups in society who will be positively affected by ERN eUROGEN’s Registry outcome. These are:

  1. Patients, their families and patient organisations in the field of rare uro-recto-genital diseases:
    Patients will be the primary target group of the registry, which aims to improve their medical care by stringent performance and outcome monitoring, generating highly relevant prognostic information, and facilitating their access to clinical trials on novel medications and technologies. The registry will include both children and adults, which will offer a unique opportunity to analyse the lifelong evolution of these rare diseases and complex conditions.
  2. Healthcare providers (HCPs) in the field of rare uro-recto-genital diseases and complex conditions:
    The registry will have significant added value for all physicians involved in this field, where there are very few cases to create high-quality standards and EU guidelines. At the same time, the registry could represent a burden due to the time demand of getting used to the platform and filling in the data sets.  Crucially, without the collaboration of network HCPs, this registry will not succeed.  Therefore, HCPs are probably the most important target group.
  3. Public health authorities and policymakers:
    The registry will be highly valuable to healthcare administrators on the local, regional, national and EU levels as it will generate novel information on disease epidemiology, management quality, and health outcomes that can be used for cost efficiency analyses.
  4. Researchers in the scientific community and the pharmaceutical industry:
    The registry will be very useful for both the pharmaceutical industry and independent academic researchers in need of information on specific disease populations potentially suitable for involvement in clinical trials, epidemiological studies, and translational research.

Project Management

In managing the ERN eUROGEN registry, different people have different roles:

  • The Advisory Board (AB) consists of three ERN eUROGEN representatives and two European Patient Advocacy Group (EPAG) representatives who had an advisory role in the setup of the ERN eUROGEN registry. Together with the Project Steering Committee, they will evaluate data application forms.
  • The Coordinator (Dr. Loes van der Zanden) will help Principal Investigators with local implementation of the ERN eUROGEN registry. In addition, the Coordinator will further develop and maintain the ERN eUROGEN registry and ensure that the registry will be up to date with the international developments in the field of registries. In order to qualify for funding, the registry coordinator reports the registry progress to the European Commission.
  • The Manager (Mw. Lotte Boormans) will enable data entry into the ERN eUROGEN registry by providing support to participating Healthcare Providers and motivating continuous participation through useful data reports containing analysed results from the registry. In addition, the ERN eUROGEN registry Manager will guide the data sharing process and ensure that the ERN eUROGEN registry website is up to date.
  • The Developer (Mw. Isabel Hageman) will further develop the data elements to be collected in the ERN eUROGEN registry and will revise any sets of data elements when necessary, cumulating all encountered data registration issues and questions into Frequently Asked Questions documents.
  • The Quality Coordinator (Dr. Wim Witjes) will assess the quality of the data in the ERN eUROGEN registry and provide recommendations to improve quality where necessary.
  • The Central Monitor (Mw. Lotte Boormans) oversees the progress of data entry, performs data consistency evaluations, and informs Principal Investigators about inconsistencies to ensure that the data in the ERN eUROGEN registry is of good quality.
  • The Principal Investigators are responsible for the local implementation of the ERN eUROGEN registry at their Healthcare Provider. This includes obtaining approval by the ethical committee, the legal department and the privacy officer, but also ensuring that patients are asked for informed consent and that their data are being entered into the ERN eUROGEN registry. The Principal Investigators are the contact persons for the Coordinator and Manager.
  • The Data Managers perform the data entry in the ERN eUROGEN registry. This could (but does not have to) be the same person as the Principal Investigator.
  • The Scientific Researchers perform the planned analyses on diagnostic and treatment procedures using the data from the ERN eUROGEN registry that were retrospectively collected. This could be the same person as a Principal Investigator and/or a Data Manager.
  • Applicants are stakeholders who are interested in using retro- or prospectively collected data from the ERN eUROGEN registry. This could be a Principal Investigator, a Data Manager and/or a Scientific Researcher, or another stakeholder. Other stakeholders don’t need to be affiliated with an ERN eUROGEN Healthcare Provider. The process of requesting and receiving data from the ERN eUROGEN registry is described in the Data Access and Sharing Policy.

GDPR Responsibilities

Radboudumc is the coordinator of the ERN eUROGEN registry. It has contracted with Castor EDC, a tradename of company Ciwit B.V. to allow the centralized storage of the Study Data. Given the fact that the Provider (the hospital participating in the ERN eUROGEN registry) and Radboudumc jointly developed and determined the purposes and means of the ERN eUROGEN registry, Parties shall be joint Controllers. However, Radboudumc, as the central Party that coordinates the ERN eUROGEN registry, shall be responsible for the storage and the use of the transferred data. Radboudumc shall ensure that appropriate technical and operational measures are in place to safeguard against any unauthorized or unlawful processing of the Study Data and against accidental loss or destruction. Radboudumc shall promptly, and in any event within 48 hours, notify the Provider about any actual or suspected breach of the Data Protection Legislation in relation to any Study Data.

The Provider is responsible to obtain and maintain any required ethical approval or similar necessary for the provision of Study Data to the ERN eUROGEN registry. In addition, the Provider is responsible for obtaining any required informed consent from each Data Subject before enrolling the respective Data Subject into the ERN eUROGEN registry and before transferring any data from that Data Subject. To that regard the Provider shall use the patient information and consent form as approved by its competent ethics committee. The consent shall cover inter alia the transfer of pseudonymized data (i.e. removing all sensitive personal data, including but not limited to patient names, initials, and other personally-identifiable information, and leaving only a coded Data Subject number) to Radboudumc and for use within the ERN eUROGEN registry and in scientific research projects approved in accordance with the Data Access and Sharing Policy;

Notwithstanding the division of responsibilities set out above, the Parties shall be jointly responsible for the compliance to obligations imposed by the Data Protection Legislation (Article 26 of the GDPR), and the Parties shall cooperate to do all necessary things to enable performance of such compliance obligations. Given the fact that Radboudumc will not have the key to the coded Study Data provided by Provider, The Parties agree that the Provider is primarily responsible for managing Data Subject requests exercising their rights under the GDPR and will comply with article 12 of the GDPR in order to respond to such a request. However, the Parties acknowledge that Data Subjects are allowed to exercise their rights under the GDPR against both Parties. If a Data Subject makes a request to Radboudumc, Radboudumc will notify the Provider about the request without undue delay. Radboudumc will assist Provider in complying with its obligation to provide an answer to Data Subject requests.