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Welcome to the Project Tracking System for ATBC (PTSA) website!

PTSA (Proposal Tracking System for the ATBC Study, pronounced "pizza") is the submission and tracking system for proposed use of data and/or biologic specimens from the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. Only a minimal amount of information is required to initiate a proposal submission. Submitted proposals will be reviewed by the ATBC Study leadership and Steering Committee, and investigators will be contacted through the system by email for any required additional information and regarding the decision rendered. Approved studies can be tracked in PTSA through the life of the study via the Progress Tracking and Progress Reports section.

  • View the ATBC proposal guidelines
  • Visit the ATBC website

If you are approved as a registered user on the PTSA website, you will be allowed to submit requests for biospecimens and/or data related to the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study.

If you submit requests via the PTSA website, you may view the status of your submission at any time. You may also access your request to add comments, upload attachments, view progress and complete progress reports.