Amyotrophic Lateral Sclerosis Type 4 Clinical Trial
Official title:
An Observational Study to Assess Clinical Manifestations and Biomarkers in Amyotrophic Lateral Sclerosis Type 4 and Other Inherited Neurological Disorders of RNA Processing
Background: Amyotrophic lateral sclerosis type 4 (ALS4) is an inherited motor neuron disease. People with ALS4 have a change in the amount of RNA and DNA that bind together. This binding of RNA with DNA forms units called R-loops. Researchers want to learn how R-loops are related to ALS4. To do this, they will study people with inherited neurological conditions that may affect R-loop levels. These include ALS4, progressive external opthalmoplegia with mitochondrial deletions (PEOB2), Aicardi-Goutieres syndrome (AGS), and ataxia and oculomotor apraxia type 2 (AOA2). Objective: To learn how the binding of RNA with DNA (R-loops) is related to neurological disease. Eligibility: People age 5 and older with ALS4, PEOB2, AGS, and AOA2. Healthy relatives and nonrelatives are also needed. Design: Participants may be screened with a review of x-rays and other medical records. Healthy relative and nonrelative participants will have 1 visit. All other participants will have 4 visits over 3 years. At visits, participants will undergo some or all of the following: Medical history Physical exam Tests of muscle strength and volume and physical function Blood tests Pregnancy test (for some females) Skin biopsy of forearm Magnetic resonance imaging (MRI) Dual x-ray absorptiometry (DEXA). Some tests are optional. The MRI uses a magnetic field and radio waves to take pictures. Participants will lie on a table that slides in and out of the scanner. The scanner makes noise. They will get earplugs. The DEXA scan uses x-rays to take pictures. MRI and DEXA will be used to measure muscle, fat, and lean body mass. ...
Status | Recruiting |
Enrollment | 315 |
Est. completion date | December 31, 2030 |
Est. primary completion date | December 25, 2030 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 5 Years to 120 Years |
Eligibility | - INCLUSION CRITERIA: ALS4 inclusion criteria: - Age 5 or above - Genetic diagnosis of ALS4 (heterozygous mutation in SETX) - Able to communicate well with the investigator, to understand and comply with the requirements of the study - Capacity to consent (adults) or assent (pediatric subjects) to the study Disease control inclusion criteria: - Age 5 or above - Genetic diagnosis of RNA processing defect mutation (RNaseH1, RNaseH2, recessive mutations in SETX) - Able to communicate well with the investigator, to understand and comply with the requirements of the study - Capacity to consent (adults) or assent (pediatric subjects) to the study Related, unaffected healthy control inclusion criteria: - Age 5 or above - Family history (first, second, or third degree relative) of RNA processing defect mutation (RNaseH1, RNaseH2, heterozygous or recessive mutations in SETX) - Able to communicate well with the investigator, to understand and comply with the requirements of the study - Capacity to consent (adults) or assent (pediatric subjects) to the study Unrelated, healthy control inclusion criteria: - Age 5 or above - Able to communicate well with the investigator, to understand and comply with the requirements of the study - Capacity to consent (adults) or assent (pediatric subjects) to the study EXCLUSION CRITERIA: ALS4 exclusion criteria: - Patients with known claustrophobia, presence of pacemaker, ferromagnetic material in their body, or any other condition that would preclude MRI assessments - Pregnancy Note: An Adult ALS4 Patient who meets any of the following criteria will be excluded from the lumbar puncture procedure: - PT/PTT values that are prolonged greater than or equal to 3 seconds from the upper limit of normal (including treatment with oral and parenteral anticoagulants) - INR greater than or equal to 1.5, thrombocytopenia (<70,000), or abnormal bleeding time or platelet dysfunction - History of a bleeding disorder - Use of anticoagulants - Disease control exclusion criteria: --Pregnancy - Related, unaffected healthy control exclusion criteria: - Diagnosis of neuromuscular disease or weakness on physical examination - Pregnancy - Note: An Adult Related, Unaffected Healthy Control who meets any of the following criteria will be excluded from the lumbar puncture procedure: - PT/PTT values that are prolonged greater than or equal to 3 seconds from the upper limit of normal (including treatment with oral and parenteral anticoagulants) - INR greater than or equal to 1.5, thrombocytopenia (<70,000), or abnormal bleeding time or platelet dysfunction - History of a bleeding disorder - Use of anticoagulants - Unrelated, healthy control exclusion criteria: - Diagnosis of neuromuscular disease or weakness on physical examination - Patients with known claustrophobia, presence of pacemaker, ferromagnetic material in their body, or any other condition that would preclude MRI assessments - Pregnancy Note: An Adult Unrelated, Healthy Control who meets any of the following criteria will be excluded from the lumbar puncture procedure: - PT/PTT values that are prolonged greater than or equal to 3 seconds from the upper limit of normal (including treatment with oral and parenteral anticoagulants) - INR greater than or equal to 1.5, thrombocytopenia (<70,000), or abnormal bleeding time or platelet dysfunction - History of a bleeding disorder - Use of anticoagulants |
Country | Name | City | State |
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United States | National Institutes of Health Clinical Center | Bethesda | Maryland |
Lead Sponsor | Collaborator |
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National Institute of Neurological Disorders and Stroke (NINDS) |
United States,
Grunseich C, Wang IX, Watts JA, Burdick JT, Guber RD, Zhu Z, Bruzel A, Lanman T, Chen K, Schindler AB, Edwards N, Ray-Chaudhury A, Yao J, Lehky T, Piszczek G, Crain B, Fischbeck KH, Cheung VG. Senataxin Mutation Reveals How R-Loops Promote Transcription by Blocking DNA Methylation at Gene Promoters. Mol Cell. 2018 Feb 1;69(3):426-437.e7. doi: 10.1016/j.molcel.2017.12.030. Epub 2018 Jan 27. — View Citation
Rabin BA, Griffin JW, Crain BJ, Scavina M, Chance PF, Cornblath DR. Autosomal dominant juvenile amyotrophic lateral sclerosis. Brain. 1999 Aug;122 ( Pt 8):1539-50. doi: 10.1093/brain/122.8.1539. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Disease progression as measured by thigh muscle volume and other study measures | Clinical and molecular measurements in ALS4 patients and other inherited neurological disorders of RNA processing will be assessed over the course of the study. | Baseline and annually at visits 2 - 4 |