Progressive external ophthalmoplegia
MONDO:0005181A mitochondrial myopathy characterized by slowly progressive paralysis of the levator palpebrae, orbicularis oculi, and extraocular muscles. Ragged-red fibers and atrophy are found on muscle biopsy. Familial and sporadic forms may occur. Disease onset is usually in the first or second decade of life, and the illness slowly progresses until usually all ocular motility is lost. (From Adams et al., Principles of Neurology, 6th ed, p1422)
Also known as: chronic progressive external ophthalmoplegia [ambiguous], progressive external ophthalmoplegia, chronic progressive external ophthalmoplegia
84 clinical trials for this condition and its sub-types.
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New drug aims to tame hard-to-control seizures in rare mitochondrial disorders
Disease control TerminatedThis study tested a drug called vatiquinone in 68 people with mitochondrial disease and epilepsy that doesn't respond to standard treatments. Participants were randomly assigned to receive either vatiquinone or a placebo for 24 weeks to see if the drug could reduce the number of …
Phase: PHASE2, PHASE3 • Sponsor: PTC Therapeutics • Aim: Disease control
Last updated Jun 27, 2026 12:03 UTC
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Scientists gather leftover surgical tissue to unlock secrets of bone disease
Knowledge-focused TerminatedThis study collected bone, cartilage, skin, and fat tissue from 50 patients undergoing surgery at Children's National Medical Center. The goal was to grow cells from these tissues in the lab and analyze them to better understand bone and connective tissue diseases. The study was …
Sponsor: National Institute of Dental and Craniofacial Research (NIDCR) • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC