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Tag Archives: CDISC-compliance

Solving Data Collection Challenges

Solving Data Collection Challenges

Cross-partnership between sponsors and CROs for the collection and analysis of clinical trial data are complex. As a result there are a number of issues encountered during the running of  trial.

As with many projects, standardization projects like CDISC is a huge undertake. It requires resources, technology and knowledge-transfer. The industry (FDA for example) has been working on standardization for years but on September 2013, it became official, in which the FDA released a ‘Position Statement‘.

 Data Collection

According to the WHO, data collection is defined as the ongoing systematic collection, analysis, and interpretation of health data necessary for designing, implementing, and evaluating public health prevention programs.

Sources of data: primarily case report books or (e)CRF forms, laboratory data and patient report data or diaries.

 Challenges of data collection

It is important for the CROs / service providers to be aware of the potential challenges they may face when using different data collection methods for partnership clinical studies. Having several clients does not mean having several standards or naming conventions. This is the main reason why CDISC is here. So why are many CROs or service providers not using CDISC standards?

Another challenge is time limitations. Some clinical trials run for just a few weeks / months.

It may be found difficult to understand the partnership in the amount of time they have. Hence, most CROs and service providers prefer to perform manual mapping at the end of the trial, hence, re-work and manual work.

Funding also plays a key challenge for CDISC-compliance data collection study. Small researchers or biotechnology companies that do not have the resources in-house, out-sourced this task to CROs or service providers and are not interested whether it is compliance as long as it is save them money. But would it save money now instead of later in the close-out phase?

If there is a shortage of funding this may not allow the CRO or service provider all the opportunities that would assist them in capturing the information they need as per CDISC standards.

We really don’t have the level of expertise or the person dedicated to this that would bring, you know, the whole thing to fruition on the scale in which it’s envisioned – Researcher

Role of the Library

There is a clear need for libraries (GL) to move beyond passively providing technology to embrace the changes within the industry. The librarian functions as one of the most important of medical educators. This role is frequently unrecognized, and for that reason, too little attention is given to this role. There has been too little attention paid to the research role that should be played by the librarian. With the development of new methods of information storage and dissemination, it is imperative that the persons primarily responsible for this function should be actively engaged in research. We have little information at the present time as to the relative effectiveness of these various media. We need research in this area. Librarians should assume an active role in incorporating into their area of responsibility the various types of storage media. [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC232677/]

Review and Revise

At the review and revise stage it might be useful for the CRO or service provider to consider what the main issues are when collecting and organizing the data on the study. Some of these issues include: ensuring sponsors, partners and key stakeholders were engaged in the scoping phase and defining its purpose; the objectives have been considered; the appropriate data collection methods have been used; the data has been verified through the use of multiple sources and that sponsors have approved the data that is used in the final clinical data report.

Current data management systems must be fundamentally improved so that they can meet the capacity demand for secure storage and transmission of research data. And while there can be no definitive tools and guideline, it is certain that we must start using CDISC-standards from the data collection step to avoid re-inventing the wheel each time a new sponsor or clinical researcher ask you to run their clinical trial.

RA eClinica is a established consultancy company for all essential aspects of statistics, clinical data management and EDC solutions. Our services are targeted to clients in the pharmaceutical and biotech sector, health insurers and medical devices.

The company is headquarter in Panama City and representation offices with business partners in the United States, India and the European Union.  For discussion about our services and how you can benefit from our SMEs and cost-effective implementation CDISC SDTM clinical data click here.

 

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Project Plan: CDISC Implementation

Project Plan: CDISC Implementation

CDISC standards have been in development for many years. There are now methodologies and technologies that would make the transformation of non-standard data into CDISC-compliance with ease. Clinical trials have evolved and become more complex and this requires a new set of skills outside of clinical research – Project Management.

As with many projects, CDISC is a huge undertake. It requires resources, technology and knowledge-transfer. The industry (FDA for example) has been working on standardization for years but on September 2013, it became official, in which the FDA released a ‘Position Statement‘.

So what is CDISC? We can say that it is way of naming convention for XPT files, or field names naming conventions or rules for handling unusual data. Currently, there are two main components of CDISC: SDTM (Study Data Tabulation Model) and aDAM (Analysis Data Model).

As a project manager and with the right tool, you can look to a single source project information to manage the project through its life-cycle – from planning, through execution, to completion.

1) Define Scope: This is where you’re tested on everything that has to do with getting a project up and running: what’s in the charter, developing the preliminary scope, understanding what your stakeholders need, and how your organization handles projects.

The scope document is a form of a requirement document which will help you identify the goals for this project. It can also be used as a communication method to other managers and team members to set the appropriate level of expectations.

The project scope management plan is a really important tool in your project. You need to make sure that what you’re delivering matches what you wrote down in the scope statement.

2) Define Tasks: we now need to document all the tasks that are required in implementing and transforming your data to CDISC.

Project Tasks (Work packages) Estimates (work unit)
Initial data standards review 27
Data Integrity review 17
Create transformation models 35

The work breakdown structure (wbs) provides the foundation for defining work as it relates to project objectives. The scope of work in terms of deliverables and to facilitate communication between the project manager and stakeholders throughout the life of the project. Hence, even though, preliminary at first, it is a key input to other project management processes and deliverables.

3) Project Plan: Once we completed the initiation phase (preliminary estimates), we need to create a project plan assigning resources to project and schedule those tasks. Project schedules can be presented in many ways, including simple lists, bar charts with dates, and network logic diagrams with dates, to name just a few.

A sample of the project plan is shown below:

project plan sample

image from Meta‐Xceed paper about CDISC

4) Validation Step: Remember 21 CFR Part 11 compliance for Computer Systems Validation? The risk management effort is not a one-time activity on the project. Uncertainty is directly associated with the change being produced by a project.

The following lists some of the tasks that are performed as it pertains to validation.

  • Risk Assessment: Different organizations have different approaches towards validation of programs. This is partly due to varying interpretations of the regulations and also due to how different managers and organizations function. Assess the level of validation that needs to take place.
  • Test Plan: In accordance with the project plan and, if not, to determine how to address any deviation. Test planning is essential in: ensuring testing identifies and reveals as many errors as possible and to acceptable levels of quality.

test plan-cdisc

  • Summary Results: This is all the findings documented during testing.

An effective risk management process involves first identifying and defining risk factors that could affect the various stages of the CDISC implementation process as well as specific aspects of the project.

riskplan

5) Transformation Specification: Dataset transformation is a process in which a set of source datasets and its variables are changed to meet new standard requirements.

Some changes will occur during this step:

For example, variable name must be 8 chars long. The variable label must not be more than 40 chars in length. Combining values from multiple sources (datasets) into on variable.

6) Applying Transformation: This is done according to specification however, this document is active during the duration of a project and can change. There are now many tools available to help with this tasks as it could be time consuming and resource intensive to update the source code (SAS) manually. Transdata, CDISCXpres, SAS CDI, Define-it; just to name a few.

7) Verification Reports: The validation test plan will detail the specific test cases that need to be implemented to ensure quality of the transformation. For example, a common report is the “Duplicate Variable” report.

8) Special Purpose Domain: CDISC has several special purpose domains: CO (comments), RELREC (related records or relationship between two datasets) and SUPPQUAL (supplemental qualifiers for non-standards variables).

9) Data Definition Documentation: In order to understand what all the variables are and how they are derived, we need a annotation document. This is the document that will be included during data submission. SAS PROC CONTENTS can help in the generation of this type of metadata documentation.

The last step in the project plan for CDISC implementation is to generate the documentation in either PDF or XML format.

CDISC has established data standards to speed-up data review and FDA is now suggesting that soon this will become the norm. Pharmaceuticals, bio-technologies companies and many sponsors within clinical research are now better equipped to improve CDISC implementation.

Need SAS programmers? We can help provide resources in-house / off-shore to facilitate FDA review by supporting CDISC mapping, SDTM validation tool, data conversion and CDASH compliant eCRFs.

 

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