Autosomal erythropoietic protoporphyria

MONDO:0019263

Erythropoietic protoporphyria (EPP) is an inherited disorder of the heme metabolic pathway characterized by accumulation of protoporphyrin in blood, erythrocytes and tissues, and cutaneous manifestations of photosensitivity.

Also known as: EPP

4 clinical trials for this condition and its sub-types, 0 tagged with Autosomal erythropoietic protoporphyria itself.

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Where it sits in the disease tree

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↑ Erythropoietic protoporphyria (15)

Sub-types of Autosomal erythropoietic protoporphyria

Protoporphyria, erythropoietic, 1 2 trials
Protoporphyria, erythropoietic, 2 1 trial

Including sub-types (4) Tagged with Autosomal erythropoietic protoporphyria (0)

Trials to join now! 2 Not yet finished but already full! 1 Completed 1

New oral drug shows promise for rare sun allergy conditions

Disease control Ongoing

This study is for people with erythropoietic protoporphyria (EPP) or X-linked protoporphyria (XLP), rare conditions that cause severe pain and skin reactions to sunlight. The purpose is to check the long-term safety of an oral medication called dersimelagon. About 301 participant…

Phase 3 • Sponsor: Tanabe Pharma America, Inc. • Aim: Disease control

Last updated Sep 11, 2026 00:00 UTC

Autosomal erythropoietic protoporphyria

Where it sits in the disease tree

New oral drug shows promise for rare sun allergy conditions