Breast conserving surgery (BCS) is performed on patients with breast cancer to resect and
completely remove the cancer while conserving as much of the surrounding healthy tissue
as possible. Current methods do not allow surgeons to determine the completeness of
surgical resection in real-time. This often results in the need for a second surgical
procedure, or in some cases more than two surgical procedures in order to have confidence
that all cancer has been removed.
This Phase 3 study will evaluate the safety and efficacy of the fluorescent imaging agent
PD G 506 A for the real-time visualization of cancer during standard of care breast
conserving surgery. PD G 506 A is an investigational drug which is converted in the body
into a fluorescent molecule that accumulates in cancer cells. Patients receiving PD G 506
A will undergo standard of care breast conserving surgery followed by fluorescence
imaging and removal of any potentially cancerous tissue left behind in the surgical
cavity.
Additional locations may be listed on ClinicalTrials.gov for NCT04815083.
See trial information on ClinicalTrials.gov for a list of participating sites.
Re-operations due to positive margins following breast conserving surgery (BCS) increase
poor cosmesis, complications, discomfort, stress, adjuvant delay, medical costs and risk
of local recurrence. Reducing positive margin rates can be achieved through optimizing
surgical procedures. This study evaluates a new method for surgeons to visualize
carcinoma in real-time, both in the surgical cavity and on the margins of excised
specimen(s) during the index BCS procedure.
The active ingredient of PD G 506A is aminolevulinic acid hydrochloride (ALA HCl). ALA
HCl is a prodrug that is metabolized intracellularly to form the fluorescent molecule
protoporphyrin IX (PpIX). The exogenous application of ALA HCl leads to a highly
selective accumulation of PpIX in malignant tissues.
This Phase 3, 2-part, single-blind [pathologist(s)-blinded] randomized placebo-controlled
trial study is designed to evaluate the efficacy and safety of PD G 506 A to aid in the
visualization of carcinoma during BCS. The Eagle V1.2 Imaging System will be used in this
trial to visualize PpIX fluorescence.
Part A is an open-label training phase of the study to optimize workflow and Part B of
the study is randomized and single-blind and will serve as the pivotal portion of the
study.
Lead OrganizationSBI ALApharma Canada, Inc.