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Copyright This is an Open Access article: verbatim copying and redistribution of
this article are permitted in all media for any purpose Providing PDA-Based Clinical Trial Listings to Oncologists 1 University of Pittsburgh Cancer Institute 2 Center for Biomedical Informatics 3 Benedum Oncology Informatics Center University of Pittsburgh, Pittsburgh PA Abstract Sub-optimal accrual rates to adult oncology clinical trials have been reported. One
potential accrual barrier has been the step of identifying
potential clinical trials for patients. In order to partially address
this barrier, a clinical trial listing was developed for oncologists
to use on their personal digital assistants (PDAs). Preliminary feedback
was gathered from an initial group of physicians who accessed this
resource. Benefits of this approach as well as future enhancements are
discussed. BACKGROUND Enrolling a patient in a cancer clinical trial is a multi-step process
with barriers present at each step.1 One initial activity is to identify potential trials for the patient. Physician
workflow requires that this identification take place rapidly
and conveniently. PDAs permit physicians to access medical-related information
in a timely and efficient manner. However, the feasibility, acceptability, and
usability of PDA-based clinical trial information
have not been explored to date. METHODS Dynamic content Web pages were created using Macromedia Dreamweaver and
ColdFusion. The Web page content was drawn from clinical trial information
for approximately 240 trials maintained in an Oracle database. This
information included trial title, disease type, disease stage, principal
investigator, key eligibility and ineligibility criteria, study
schema, and contact information. In order to permit physicians to rapidly
identify trials of interest, we developed a three-tier selection
process. Users first selected a broad cancer category (e.g., Lung Cancer) or
trial category (e.g., Phase I). Cancer sub-types were then presented (e.g., small
cell, non-small cell, mesothelioma). Finally, broad
trial categories that further described disease characteristic (e.g., metastatic) or
trial characteristics (e.g., adjuvant) were presented. Trial
titles for this three-tier specification were then displayed. Each
title had a ‘more info’ link that presented all other
data elements described above in a single page format. In order to deliver the clinical trial content to the physicians’ PDAs, a
contract was established with AvantGo. AvantGo is a software
application that allows users to retrieve web-based content and store
it on their PDA. AvantGo updates all PDA-based pages whenever synchronization
occurs. Four physicians at two different network cancer center locations were selected
for participation in this project. These four physicians installed
the free AvantGo software on their own PDAs and home computers. They
were contacted one month after installing the software and were asked
to complete a structured phone survey regarding the application. RESULTS Each physician reported having used the PDA-based listing. Benefits reported
included the speed at which trials could be identified and the convenience
of the PDA-based information. Three central usability issues
were identified. Physicians noted that clearer categories were needed. For
example, physicians were unsure of the difference between a trial
labeled “Stage IV” and one labeled “Metastatic.” Physicians
also wanted to identify which trials were open
at their particular network location. Finally, some physicians noted
that certain pages were not loading due to a time out error. Three out
the four physicians were continuing to use the application at the time
of the phone survey. DISCUSSION The feasibility and acceptability of PDA-based clinical trial information
has been demonstrated. Several important usability issues have been
identified and are being addressed in the second round of development. Further
studies will examine if the use of the PDA listing results in
higher accrual rates. ACKNOWLEDGMENTS We wish to thank Brenda Crocker, Jeff McHugh, and Kemp Mullaney for their
assistance. This work was supported by a grant from the National Cancer
Institute (R21CA101721). Funding for the AvantGo contract was provided
by the University of Pittsburgh Cancer Institute. REFERENCES 1. Lara PN, Higdon R, Lim N, et al. Prospective evaluation of cancer clinical trial accrual patterns: Identifying
potential barriers to enrollment. J Clin Oncol. 2001 Mar 15;19(6):1728–33. [PubMed] |
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J Clin Oncol. 2001 Mar 15; 19(6):1728-33.
[J Clin Oncol. 2001]