Measuring Severity of Psoriasis
in clinical trials or post-marketing
A validated approach to measuring the severity of psoriasis.  The system, called the Lattice System - Physician's Global Assessment (LS-PGA, pat. pend.), is easy to use in clinical trials.  Only four boxes must be checked by the physician to derive the overall final score. For single target lesions, use the LS- Target PGA.

The score meets regulatory requirements: static score with intuitive results, eg, clear, severe.

LS-PGA has been validated twice: Langley and Ellis, J Am Acad Dermatol, Oct 2004, ; and Berth-Jones, Br J Dermatol.

The LS-PGA system may be accompanied by an optional booklet showing photo examples for rating psoriasis. A browser-based LS-PGA calculator is available.

An in-office LS-PGA is also available for post-marketing studies.

For more information, contact Charles N. Ellis, MD, Professor of Dermatology, University of Michigan Medical School.  See below for contact information.
Contact Information
Email : (delete the Xs that reduce spam)
Phone :
734-665-0493 Voice/fax
Address :
DATAcquire, Inc.
3929 Waldenwood, Suite Y
Ann Arbor
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