27th Annual Meeting of the American Society for Photobiology Grand Hyatt Washington, D.C. . . . . . . . . . . . . . . . . . . . . . . July 10-15, 1999

GENERAL INFORMATION
Photostability '99 will be joining the American Society for Photobiology (ASP) Annual Meeting in Washington, DC. The PPS99 seminars and ASP sessions, including platform sessions and poster presentations, are open to all registered participants of the ASP meeting.

In addition, there will be a two part PPS99 Course, "Principles of Pharmaceutical Photostability Testing" on Wednesday, July 14, 1999 from 9:00 a.m. - 12:00 noon and 2:30 - 5:30 pm during the ASP Annual meeting. Separate registration is required for the Course.

The co-organizers for the PP99 sessions are Don Forbes (Argus Research Laboratories) and Joseph Piechocki (FDA; CDER) and Steve Baertschi (Eli Lilly and Company). A preliminary program schedule and topic outline for this Course is found below.

CALL FOR ABSTRACTS
The organizers of Photostability '99 invite all interested persons to submit abstracts for a special Photostability Poster Session according to the procedures outlined under Abstract Information and the abstract form (available from the ASP Office). (Note: Abstracts for this session do not require an ASP member's signature). Abstract Deadline: February 22, 1999.

In addition, titles for "Works-in-Progress" posters may be submitted any time prior to June 30, 1999. Check the appropriate box on Works-in-Progress form.

FOCUS
The primary focus of this meeting will be on interpreting and applying the ICH guideline on pharmaceutical photostability, with particular emphasis on methodologic options and validation. A discussion of photostability issues, including many that have arisen since the document became official, will be presented by experts in this field. Also featured will be presentations related to the development of new, more reasonably priced spectroradiometers that offer solutions to several of the associated problems.

This meeting has been scheduled in conjunction with that of the ASP in order to gain the benefits from consideration of mutually recognized concerns. Examples of such concerns include light source and measurement technology and documentation, comparisons between in vitro and in vivo photochemistry, and applications of sunscreens for photoprotection and stabilization of photolabile drug substances.

REGISTRATION
REGISTRATION FEE
The meeting registration fee for the ASP meeting covers all PPS99 sessions with the exception of the Pharmaceutical Photostability Course on Wednesday. The course fee is an additional $180 if paid in advance (prior to June 25), or $200 if paid at the time of the meeting. Please see the special course registration card.

Advance before June 25	At The Meeting
$180.00	$200.00

CHECKS
Checks must be written on US banks in US funds or for the equivalent amount in foreign currency on a foreign bank. Fees quoted are in US dollars.

CREDIT CARDS
The American Society for Photobiology accepts Visa or Mastercard for payment of registration and other fees. Please include credit card type, number and expiration date.

ADVANCE REGISTRATION
Registration may be made in the "advance" category prior to June 25, 1999. After this date registration must be made at the meeting and at the higher rate.

Complete the PPS99 Course Registration Form with credit card information, or print the form and mail it with the applicable fee to:

REFUNDS
Registrants must request refunds in writing. Refund requests will not be honored after June 30, 1999. There will be a $25 handling fee for any registration cancellation. All refunds will be made after the meeting.

SCIENTIFIC PROGRAM