Connective Tissue

Pseudoxanthoma Elasticum

Also known as PXE, Gronblad-Strandberg syndrome, ABCC6 deficiency

Pseudoxanthoma elasticum is a systemic metabolic disorder caused by loss-of-function variants in ABCC6, a hepatic ABC transporter involved in purine nucleotide export and systemic mineralisation regulation. Progressive calcification and fra

ORPHA:758 ↗Gene ABCC6Prevalence 1 in 25,000–100,000Onset Childhood to early adulthood (skin), adulthood (vascular/ocular complications)Genetic — autosomal recessive

6

studies recruiting now

as of 7 Sept 2026

32

studies registered in total

as of 7 Sept 2026

2

countries with a recruiting site

as of 7 Sept 2026

7 Jan 2026

most recent study posted

among recruiting studies

Recruiting trials

Showing the 5 most recently updated recruiting studies, as recorded 7 Sept 2026. Live status on each study page.

See all 6 recruiting studies

Where recruiting studies are running

Countries with at least one recruiting site among the studies above, 7 Sept 2026. Tap a country to search trials there.

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About Pseudoxanthoma Elasticum

Pseudoxanthoma elasticum is a systemic metabolic disorder caused by loss-of-function variants in ABCC6, a hepatic ABC transporter involved in purine nucleotide export and systemic mineralisation regulation. Progressive calcification and fragmentation of elastic fibres affects the skin, Bruch's membrane in the eye, and the arterial wall, leading to characteristic yellowish skin papules, vision-threatening choroidal neovascularisation, and premature cardiovascular disease. The condition is clinically heterogeneous with highly variable age of onset and severity of complications.

Common clinical features

Yellow xanthoma-like papules on the lateral neck and flexural skin creasesLax, redundant skin with loss of elasticityAngioid streaks on fundoscopy (breaks in Bruch's membrane)Choroidal neovascularisation and progressive central vision lossPremature peripheral arterial disease and claudicationGastrointestinal haemorrhage from calcified mucosal vesselsAccelerated coronary artery disease in young adults

From Orphanet’s phenotype annotations (CC BY 4.0). Not a complete list.

Treatments being studied

1 in clinical development, from Open Targets (CC BY 4.0). Not medical advice.

Phase 1/2Inz-701

Before you apply

Things trial teams commonly ask about for Pseudoxanthoma Elasticum. Not eligibility rules; those are set by each study.

  • Ophthalmology records documenting angioid streaks and any history of choroidal neovascularisation are critical screening documents — obtain fluorescein angiography or OCT-A reports.
  • Molecular confirmation of biallelic ABCC6 pathogenic variants is required for most interventional trials; research and clinical panels targeting ABCC6 are widely available.
  • Cardiovascular risk factor documentation (lipids, ABI, coronary imaging if applicable) is commonly required as trials often stratify by vascular burden.

Related conditions

Information, not medical advice. Trial listings are shown as recorded on ClinicalTrials.gov; whether any study is right for you is a decision for you and your clinicians, and eligibility is decided by each research team. Disease information from Orphanet (CC BY 4.0).