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Project TitlePerianal Disease Activity Index (PDAI)
Track CodeP29782
Short Description

The PDAI is a validated, simple five-point index, which is easy to administer in an office setting.  This instrument sensibly quantifies the perianal disease severity, has acceptable measurement variation and is able to detect important changes in perianal activity status. 

Reference: Journal of Clinical Gastroenterology 1995; 20:27-32

Therapeutic Area Applications include: 

Perianal Disease, Crohn's Disease,  Perianal Fistulas

Academic Studies, Observational Studies, Clinical Trials

License agreements for academic research and investigator-initiated clinical trials are available. For any other purpose such as clinical trials or diagnostic please contact the McMaster Industry Liaison office at milo@mcmaster.ca

Tagsperianal disease, perianal disease activity, Perianal Disease Activity Index, index, ibd, fistula, perianal fistula, questionnaire, validated, crohn's disease, crohn's, PDAI
Posted DateJun 17, 2016 3:28 PM

Potential Applications

Available through Flintbox:

  • Academic research (<100 patients)
  • Evaluation studies for a duration of three years in clinical settings for practitioners (e.g. physio or occupational therapists, family doctors) to evaluate patients.

Other applications, please complete the request form at http://ip.mcmaster.ca/questionnaires/qol-request or contactmilo@mcmaster.ca

  • Clinical trials (including investigator-initiated clinical trials)
  • Larger scale observation or evaluation studies

State of Development

The PDAI is a validated, simple five-point index, which has been in use since 1995.


Name Price
Additional administration to 100 patients - academic study only 100.00 USD Buy
Academic Study by a Student 75.00 USD Buy
Evaluation Use in a Medical Setting 1,000.00 USD Buy
PDAI for Academic Research by a Researcher 150.00 USD Buy