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Hereditary photodermatosis
MONDO:0015951Hereditary photodermatoses are a spectrum of rare photosensitive disorders that are often caused by genetic deficiency or malfunction of various components of the DNA repair pathway. This results clinically in extreme photosensitivity, with many syndromes exhibiting an increased risk of cutaneous malignancies.
Also known as: photogenodermatosis, photogénodermatose, genetic photosensitivity, genetic skin photosensitivity
31 clinical trials for this condition and its sub-types, 0 tagged with Hereditary photodermatosis itself.
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Sub-types of Hereditary photodermatosis
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Inherited porphyria 0 trials · 24 incl. sub-types
9 sub-types
- Erythropoietic protoporphyria 15 trials Sub-types →
- CPOX-related hereditary coproporphyria 0 trials · 5 incl. sub-types Sub-types →
- HMBS-related hepatic porphyria 0 trials · 5 incl. sub-types Sub-types →
- PPOX-related hepatic porphyria 0 trials · 2 incl. sub-types Sub-types →
- Cutaneous porphyria 2 trials
- UROD-related inherited porphyria 0 trials · 1 incl. sub-types Sub-types →
- Chester porphyria 0 trials
- Erythropoietic uroporphyria associated with myeloid malignancy 0 trials
- Porphyria due to ALA dehydratase deficiency 0 trials
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Xeroderma pigmentosum 4 trials · 6 incl. sub-types
10 sub-types
- Xeroderma pigmentosum group F 1 trial
- Xeroderma pigmentosum variant type 1 trial
- Xeroderma pigmentosum group A 0 trials
- Xeroderma pigmentosum group B 0 trials
- Xeroderma pigmentosum group C 0 trials
- Xeroderma pigmentosum group D 0 trials
- Xeroderma pigmentosum group E 0 trials
- Xeroderma pigmentosum group G 0 trials
- Xeroderma pigmentosum, autosomal dominant, mild 0 trials
- Xeroderma pigmentosum, complementation group J 0 trials
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Xeroderma pigmentosum-Cockayne syndrome complex 1 trial · 2 incl. sub-types
6 sub-types
- Xeroderma pigmentosum group F 1 trial
- Xeroderma pigmentosum group B 0 trials
- Xeroderma pigmentosum group D 0 trials
- Xeroderma pigmentosum group G 0 trials
- Xeroderma pigmentosum, type F/Cockayne syndrome 0 trials
- Xeroderma pigmentosum, type G/Cockayne syndrome 0 trials
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Rothmund-Thomson syndrome 1 trial
4 sub-types
- Rothmund-Thomson syndrome type 1 0 trials
- Rothmund-Thomson syndrome type 2 0 trials
- Rothmund-Thomson syndrome type 3 0 trials
- Rothmund-Thomson syndrome type 4 0 trials
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Bloom syndrome 0 trials
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UV-sensitive syndrome 0 trials
3 sub-types
- UV-sensitive syndrome 1 0 trials
- UV-sensitive syndrome 2 0 trials
- UV-sensitive syndrome 3 0 trials
Most studied deeper sub-types
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Could a gel cut down on skin cancer surgeries? new trial investigates
Disease control Stopped earlyThis trial tests a gel called patidegib applied to the face twice daily for 9 months in people who develop many basal cell carcinomas (a common skin cancer) but do not have Gorlin syndrome. The goal is to see if the gel reduces the number of new skin cancers that would normally r…
Phase 2 • Sponsor: Sol-Gel Technologies, Ltd. • Aim: Disease control
Last updated Jul 23, 2026 00:00 UTC
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Porphyria prevention study halted early – little data to go on
Prevention Stopped earlyThis small phase 2 trial tested whether the drug Panhematin could prevent acute attacks in people with certain types of porphyria. Only 13 participants were enrolled before the study was terminated early. Researchers tracked attacks and serious side effects, but the limited data …
Phase 2 • Sponsor: The University of Texas Medical Branch, Galveston • Aim: Prevention
Last updated Jun 27, 2026 09:00 UTC