informatics portals to

Accelerate discoveries

The CBTN utilizes a variety of web-based applications to manage the collection of specimen, clinical and genomic data for accelerated discovery. Much like an application on a smartphone allows users to connect with programs and information, the software platforms utilized by the CBTN allow researchers to view, compute, store and analyze data which is most relevant to their research efforts. All of the software used in the CBTN is open-source (with the exception of the commercial Laboratory Information Management System used at CHOP) and is available on GitHub.

Informatics Portals

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    Cavatica is a cloud-based portal environment developed to securely store, share and analyze large volumes of pediatric brain tumor genomic data and is the largest, clinically-annotated pediatric database in the world. Named for the popular children’s story Charlotte’s Web, Cavatica allows researchers and investigators to access and share a network of data, pipelines, algorithms, visualizations, and hypotheses’ about specific types of tumors. Cavatica includes data from a number of sources including the Children’s Brain Tumor Tissue Consortium (CBTN), Pacific Neuro-Oncology Consortium (PNOC), Stand Up to Cancer, TARGET and TCGA.

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    PedcBioPortal is an open-access resource for childhood cancer genomics which enables users to visualize, analyze and also download large-scale cancer genomics data sets. These data allow researchers to understand the molecular mechanisms of cancer and design therapies based on a patient's unique profile. PedcBioPortal is a variation upon the original cBioPortal (developed at Memorial Sloan Kettering) which allows investigators and researchers to rapidly explore data stored in the adult-focused TCGA database.

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    Kids First Data Resource Portal

    The NIH Common Fund supported Kids First Data Resource Portal provides access to more than 8,000 samples of childhood cancer and structural birth defects genomic data. The Kids First Data Resource Portal stores the CBTN's Pediatric Brain Tumor Atlas data and allows cross-analysis of different disease types to uncover the potential links between genetic diseases occurring in children. Kids First DRC Git Hub 

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    Flywheel is an imaging analytics software platform that provides users with the ability to store, view, share, and analyze imaging resources for CBTN’s consented subjects. De-identified images (clinical MRIs) are stored on a cloud-deployment of Flywheel, and images are accessed by CBTN researchers through secure access mechanisms, with related imaging information provided in a searchable database.

    If you'd like to request imaging files, complete the CBTN Request Submission Form

About the CBTN Informatics Infrastructure

A foundational mission of the CBTN is to protect subject, participant and family privacy. Subjects’ privacy is assured through the use of an electronic Honest Broker (eHB), a platform which de-identifies subject information while regulating how the data is distributed.   The Biorepository Toolkit Project, another open source software development project, provides a single unified interface for data collection and analysis.

All subject identifiers are kept in a secure and encrypted database which is only accessible to the operations team and the honest broker software. This information cannot be retrieved unless a request by a credentialed user of the subject’s home consortium site is made.  All information complies with HIPAA policies and personal identification disclosure guidelines. Once the data is de-identified, it is accessible through the  Biorepository Portal (BRP) to allow sites around the globe to view and analyze subject data or request additional specimens.

CBTN Informatics

The CBTN Biorepository Portal (BRP), developed by the Enterprise Informatics Group (EiG) of CHOP’s Department of Biomedical and Health Informatics (DBHi) ensures that data is captured and integrated securely to ensure each patient's privacy throughout the specimen management process. Other tools used and integrated into the CBTN informatics infrastructure include the Electronic Honest Broker (eHB), REDCap data capture, and Nautilus laboratory information management system (LIMS).

CBTN Data Quality Assurance

Because data is always flowing into the CBTN, quality control must also be constant. The CBTN's data quality is maintained through an online portal that research coordinators use to track and solve data quality issues such as entry errors, omissions, formatting errors, and inconsistencies in data across clinical and specimen datasets. On a nightly basis, the entire dataset is checked and tasks are made available for research coordinators to view and solve. This system also allows the CBTN to track quality and overall metrics over time to ensure our accuracy is maintained as the CBTN's collection of childhood brain tumor data grows and expands.

CBTN Software Toolkit

Electronic Honest BrokerA secure, non-user facing software service that works behind the scenes to connect the BRP and other laboratory, clinical and genomics software tools. This tool securely provides a solution to the complex process of protecting participant privacy while maintaining highly complex specimen and clinical data. More information can be found in a paper published in the August 2016 Special Issue of BMC Genomics.

RedCap: A secure data capture and management tool developed by Vanderbilt University

Nautilus Laboratory Information Management System (LIMS): Used to capture and track clinical and translational research data, developed in partnership with ThermoFisher Scientific

Amazon Simple Storage Service (S3 Buckets): Used to store the CBTN's genomic data as well as other data file types.

Seven Bridges Genomics: Genomics processing and support for the Cavatica platform