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Broad Area ALA 1-hour incubation

DUSA Pharmaceuticals, Inc. · Phase 2 active Small molecule

ALA (5-aminolevulinic acid) is a precursor to porphyrins, which accumulate in abnormal cells and become fluorescent under blue light, allowing for photodynamic therapy.

ALA (5-aminolevulinic acid) is a precursor to porphyrins, which accumulate in abnormal cells and become fluorescent under blue light, allowing for photodynamic therapy. Used for Actinic keratosis.

At a glance

Generic nameBroad Area ALA 1-hour incubation
Also known asLevulan
SponsorDUSA Pharmaceuticals, Inc.
Drug classPhotodynamic therapy agent
ModalitySmall molecule
Therapeutic areaDermatology
PhasePhase 2

Mechanism of action

This mechanism is based on the principle that abnormal cells, such as those found in actinic keratoses, have a higher rate of porphyrin synthesis than normal cells. The ALA is applied topically and is absorbed by the abnormal cells, where it is converted into porphyrins. These porphyrins then accumulate in the cells and become fluorescent under blue light, allowing for selective destruction of the abnormal cells with a light source.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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