Developmental anomaly of metabolic origin

This study tests whether injecting a person's own bone marrow stem cells into or near the eye can help treat various retinal and optic nerve diseases, including age-related macular degeneration, retinitis pigmentosa, and glaucoma. Participants receive stem cell injections via dif…

This early-stage study tests a new medicine called PYC-001, given as an injection into the eye, for people with a rare genetic eye disease (autosomal dominant optic atrophy) caused by a change in the OPA1 gene. The main goal is to check the safety of different doses and schedules…

This trial tests a gene therapy for Fanconi anemia, a rare genetic disorder that causes bone marrow failure and increases cancer risk. Participants receive their own stem cells that have been genetically corrected with a lentiviral vector to fix the faulty FANCA gene. The study e…

This phase 3 trial tests an experimental drug called sepofarsen in 32 people with Leber congenital amaurosis (LCA), a rare genetic condition that causes severe vision loss from birth. The drug is injected into one eye, while the other eye gets a placebo, to see if it safely impro…

This study tests the drug migalastat in 8 children aged 2 to 12 with Fabry disease, a rare genetic disorder. The goal is to see if the drug is safe, how it moves through the body, and if it helps protect kidney function. Participants will take the medicine for 12 months.

This study tests whether adding AGuIX gadolinium-based nanoparticles to standard brain radiation can better control brain metastases that are at high risk of coming back. About 134 adults with certain cancers (like melanoma, lung, breast, or colorectal) that have spread to the br…

This trial tests a one-time gene therapy called UX111 for children with Sanfilippo A, a rare genetic disorder that causes severe brain damage. The therapy delivers a working copy of the missing gene to cells. Researchers will measure whether it reduces harmful substances in the b…

This Phase 3 study tests whether the drug mavorixafor can reduce serious infections and increase neutrophil levels in people with chronic neutropenia—a condition where the body doesn't make enough infection-fighting white blood cells. About 176 participants will receive either ma…

This program provides access to two experimental drugs, doxecitine and doxribtimine, for people with thymine kinase 2 deficiency (TK2d), a rare genetic disorder that can cause severe muscle weakness and early death. It is for children and adults who have a confirmed TK2 gene muta…

This study tests a bone marrow transplant from a family donor for children under 21 with severe non-cancer blood disorders like sickle cell disease, bone marrow failure, or immune problems. The goal is to see if the transplant can replace the diseased cells with healthy donor cel…

This study tests a drug called afatinib in 25 adults with Fanconi anemia who have advanced head and neck cancer that cannot be removed by surgery. Afatinib is a pill that blocks a protein helping cancer grow. The goal is to see if it can shrink tumors and control the disease. Res…

This study watches children and adults who are already taking or about to start Ilaris for hereditary periodic fever syndromes or systemic juvenile idiopathic arthritis. Researchers will track side effects and how well the drug controls symptoms over 16 weeks. No new medicine is …

This study tests whether a purine-rich diet can lower disease markers in people with AICA-ribosiduria, a rare genetic condition causing severe disability and epilepsy. Ten participants will follow a diet with 160 mg of purines per day. Early results in one patient showed promise,…

This Phase 3 trial tests pegtibatinase, an enzyme given as a shot, in 70 people aged 12–65 with classical homocystinuria. The goal is to see if it safely lowers high homocysteine levels when added to standard care. Participants receive either the drug or a placebo for 24 weeks.

This study tests whether a high-quality form of coenzyme Q10, a natural substance, can help reduce symptoms and improve daily life in veterans with Gulf War illness. Researchers will compare the supplement to a placebo in 192 veterans. The goal is to see if this approach offers a…

This study tests a program called Pediatric Medication Therapy Management (pMTM) for children with complex medical conditions who take five or more medications. The program involves a thorough review of all medicines, optimizing the regimen, and creating a clear medication plan. …

This program offers continued treatment with idursulfase-IT (TAK-609), given directly into the spinal fluid, plus standard intravenous Elaprase, for children and adults with Hunter syndrome who have cognitive impairment. It is only open to people who completed earlier studies of …

This program provides expanded access to triheptanoin for people with long-chain fatty acid oxidation disorders (LC-FAOD) who have few treatment options and cannot join a clinical trial. The goal is to help manage the disease by providing an alternative energy source for the body…

This study tests a device that removes specific immune cells from donated stem cells before transplant. The goal is to lower the risk of graft-versus-host disease, where donor cells attack the patient's body. Up to 90 children and young adults (ages 0-30) will receive these treat…

This study follows 120 Israeli children and teens with type 1 diabetes who use the Medtronic 780G system, a closed-loop insulin pump that automatically adjusts insulin. Researchers will track blood sugar control, sleep, diet, and emotional well-being over two years. The goal is t…

This program provides expanded access to Mepsevii for people with MPS VII (Sly Syndrome) who have no other treatment options. It is designed for individual patients on a case-by-case basis. The goal is to offer a potential treatment when no alternatives exist.

This early-stage study tests whether ISP-001 is safe and tolerable in 11 people with a rare genetic disease called MPS I (Hurler-Scheie or Scheie types). Participants receive the experimental treatment and are monitored for side effects. The goal is to gather safety data for futu…

This study tests whether a drug called glycerol phenylbutyrate (RAVICTI®) can reduce fatigue and improve daily life for people with pyruvate dehydrogenase (PDH) deficiency, a rare genetic condition that affects energy production. About 15 children and young adults (ages 2 to 25) …

This study is testing a drug called pegunigalsidase alfa in about 16 Japanese patients aged 13 to 70 with Fabry disease, a rare genetic disorder. The goal is to see if the drug is safe and how it works in the body. Participants will receive the treatment and be monitored for side…

This study tests a drug called PRX-102 (pegunigalsidase alfa) in 22 children and teens aged 2 to 18 with Fabry disease, a rare genetic disorder that causes pain and organ damage. The drug is an enzyme replacement therapy given by infusion every two weeks. Researchers will monitor…

This study tests whether giving enzyme replacement therapy to fetuses with certain rare genetic diseases (like MPS I, Gaucher, or Pompe) before birth is safe and feasible. About 10 pregnant participants will receive the treatment through the umbilical vein. The goal is to see if …

This study follows 15 adults (ages 22–90) with severe, long-term balance disorders caused by inner ear damage. Participants have already received a vestibular implant, a device that electrically stimulates the balance nerve to help restore steadiness and clear vision during movem…

This study tests a gene therapy called GS010 for people with Leber hereditary optic neuropathy (LHON), a genetic condition that causes rapid vision loss. Researchers will give the treatment as an injection into the eye at two different doses to see if it improves vision and mitoc…

This study tests a gene therapy called EXG110 in 12 people with Fabry disease. The therapy uses a harmless virus to deliver a working gene that may help the body produce a missing enzyme. The main goal is to check safety and find the right dose, while also looking at how it affec…

This study tests whether giving L-Citrulline, a natural supplement, for 28 days can help hospitalized children aged 1 month to 5 years who have fever and are at high risk of serious problems. About 888 children in Mozambique and Ethiopia will receive either the supplement or a pl…

This study tests whether adding a daily probiotic tablet and a coenzyme Q10 toothpaste to standard gum cleaning can improve oral health in pregnant women. Forty pregnant women will be split into two groups: one gets the probiotic plus Q10 toothpaste, the other gets only the Q10 t…

This expanded access program offers a special stem cell purification technique (CD34+ selection) for patients undergoing stem cell transplants. The method removes many T-cells from the donated stem cells, which lowers the risk of a serious complication called graft-versus-host di…

This early study is testing a drug called triheptanoin (Dojolvi) in children with pyruvate dehydrogenase complex (PDC) deficiency, a rare genetic condition that affects energy production. The trial will enroll 6 children aged 1 to 18 and look at safety, side effects, and changes …

This phase 2 trial tests a special stem cell transplant for people with inherited bone marrow failure disorders like Fanconi anemia. The transplant uses a technique to remove certain immune cells, aiming to reduce the need for long-term immune-suppressing drugs and lower infectio…

This early-stage trial tests an oral drug called ALE1 for hypophosphatasia (HPP), a rare genetic bone disease. The study will first check safety and how the drug moves through the body in healthy volunteers, then in adult HPP patients. It is a small, placebo-controlled study to f…

This study tests a new way to treat Fanconi Anemia, a rare genetic disorder that causes bone marrow failure. Doctors will give patients donor stem cells that have been specially filtered to remove certain immune cells, along with an experimental antibody called JSP191. The goal i…

This phase 1 trial tests N-acetylcysteine (NAC), an antioxidant, in 18 adults with a specific mitochondrial disease caused by the m.3243A>G mutation and low brain glutathione levels. Participants take one of three daily doses (1800, 3600, or 5400 mg) for 3 months to find the safe…

This study tests a vestibular implant in 15 older adults (ages 65-90) with chronic balance issues due to bilateral vestibular hypofunction. The implant electrically stimulates the inner ear to improve balance and vision. Researchers will measure changes in gait and eye reflexes o…

This study tracks 50 children and adults with non-malignant disorders like immune deficiencies and anemias who receive a stem cell transplant after a reduced-intensity chemotherapy regimen. The goal is to see if this approach improves survival and reduces severe graft-versus-host…

This study tests a vestibular implant, a device surgically placed in the inner ear to electrically stimulate balance nerves. It aims to improve balance, posture, and vision in up to 8 adults with bilateral vestibular hypofunction, a condition causing chronic dizziness and instabi…

This study looks at whether the diabetes drug pioglitazone can improve how the liver processes energy in people with nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes. Researchers will measure liver mitochondrial function using special tracers before and after 16 weeks…

This study follows 200 Chinese children and adults with Fabry disease who are receiving routine treatment with Replagal (agalsidase alfa). The goal is to see how the therapy affects heart and kidney function over time, as well as quality of life and safety. Participants continue …

This study looks at whether adding CoQ10 (a supplement that supports cell energy) to high-intensity interval training can help people with end-stage kidney disease build muscle and improve physical function. 156 adults on dialysis will be assigned to exercise alone or exercise pl…

This study is testing a less intense chemotherapy and radiation regimen before a stem cell transplant for children and young adults up to age 55 with non-cancerous blood disorders like immune deficiencies, anemias, and metabolic diseases. The goal is to see if this gentler prepar…

This phase 2 trial is testing a stem cell transplant using a milder chemotherapy regimen to treat people with severe immune deficiencies and inherited bone marrow failure. The goal is to see if donor cells can safely take over and rebuild a healthy immune system. Up to 27 partici…

This study tests whether dynamic surface exercise training (exercises on unstable surfaces like physio balls) can improve mobility, balance, and coordination in children aged 5-8 with diplegic cerebral palsy. 14 children will be randomly assigned to either the dynamic surface exe…

This study follows about 100 adults with Fabry disease who are taking or planning to take the medication Elfabrio. Researchers will monitor kidney function, heart health, and disease markers over time to see how well the drug works and if any side effects occur. The goal is to un…

This study tests a stem cell transplant approach for people with Fanconi Anemia who don't have a perfectly matched donor. The goal is to see if using lower doses of chemotherapy before the transplant can reduce serious side effects. About 70 participants will receive a transplant…

This early-stage trial is testing an experimental drug called HM15421/GC1134A in 18 adults with Fabry disease, a rare genetic disorder. The study aims to check the drug's safety, how the body processes it, and whether it can help control the disease. Participants receive the drug…

This early-stage trial is testing a single-dose gene therapy called AMT-191 in 12 adult men with classic Fabry disease. The therapy uses a harmless virus to deliver a working copy of the GLA gene to the liver, so the body can produce the missing enzyme. The main goals are to chec…

This study is testing the safety of Replagal, an enzyme replacement therapy, in 5 Indian children and adults with Fabry disease who have not taken it before. Participants receive an infusion every 2 weeks for about a year. The main goal is to track side effects and serious reacti…

This study tests an oral drug called TTI-0102 in 12 people with MELAS, a rare genetic disorder that causes muscle weakness, strokes, and fatigue. Participants receive either the drug or a placebo for 6 months. Researchers will measure walking ability, fatigue, and quality of life…

This early-stage trial tests whether adding special cells (DUOC-01) into the spinal fluid is safe for children with inherited metabolic diseases that damage the brain. Participants are ages 1 week to 21 years and are already receiving a standard umbilical cord blood transplant. T…

This early-phase study tests a new drug called JR-446 in 10 children with mucopolysaccharidosis type IIIB (Sanfilippo syndrome type B), a rare genetic disease that affects the brain and body. The drug is given through an IV and aims to be safe and possibly help manage the conditi…

This study explores whether MRI scans can safely and accurately detect cancerous or precancerous mouth lesions in people with Fanconi Anemia, a rare genetic condition that raises cancer risk. Researchers will compare MRI results to standard biopsies in 80 adult participants. If s…

This study is testing whether a non-invasive brain imaging technique called fNIRS can reliably measure brain function in people with Fragile X syndrome or Creatine Transporter Deficiency. Researchers will use a cartoon-based visual stimulus to record brain activity and compare it…

This study will screen 13,000 children in China using urine tests and ultrasound to find kidney disease early. The goal is to see how common kidney problems are in kids and to build a system to predict who is at risk. Children with abnormal results will be referred for further ca…

This study is testing a small device called a nanosensor that measures oxygen levels in muscle tissue. The goal is to see if it can accurately assess mitochondrial function in people with mitochondrial myopathy compared to healthy volunteers. If it works, this sensor could become…

This early-stage study tests a small nanosensor placed under the skin in the forearm to measure oxygen levels in muscle, which reflects how well mitochondria are working. Researchers will compare results from 24 people—some with mitochondrial myopathy and some healthy—to see if t…

This study tests whether a rapid triage test (suPAR) can help doctors make better decisions about admitting or discharging children with fever. Over 5,000 children aged 2 months to 5 years in sub-Saharan Africa will be randomly assigned to standard care or standard care plus the …

This study tests whether an artificial intelligence (AI) algorithm can screen for coronary artery disease (CAD) by analyzing facial images. Researchers will enroll 1,392 high-risk adults (those with diabetes, high blood pressure, or over 65) and use the AI to classify them as hig…

This study tests whether the drug sonlicromanol can reduce fatigue and improve physical abilities like balance and leg strength in adults with a specific genetic form of mitochondrial disease. About 220 participants will take either the drug or a placebo twice daily for 52 weeks.…

This study tests whether cannabidiol (CBD) can safely improve behavior, mood, sleep, and daily function in people with Sanfilippo syndrome, a rare genetic disorder. Thirty-five participants will receive either CBD or a placebo, then switch after a break. Caregivers will report on…

This study tests whether a personalized mix of endurance and strength exercises, done at home with video check-ins, can improve mobility and muscle strength in people with mitochondrial myopathy. Fifteen adults with confirmed genetic mutations will follow the program for up to 12…

This study tests whether a personalized facial rehabilitation program can help people with systemic sclerosis who have facial tightness and mouth problems. About 60 adults with this rare autoimmune disease will either receive the rehab program or standard care. The goal is to see…

This study is testing whether hypnosis can lower anxiety in people having facial surgery under local anesthesia. Sixty-six adults who are at least mildly anxious will either get standard care or extra hypnosis support. Researchers will measure anxiety levels before and after surg…

This study tests whether playing Kho-Kho, a traditional Indian tag game, can improve agility and reaction time in school children aged 8 to 12. Over 6 weeks, 48 kids will either play Kho-Kho or do free play three times a week. Researchers will measure changes in agility and react…

This study tests whether whole-body electrical muscle stimulation (WB-EMS) can help adults with neuromuscular diseases like ALS, SMA, and muscular dystrophy exercise safely. Because these conditions weaken the nerves that control muscles, traditional exercise is often too hard. W…

This study tests whether custom-made 3D-printed masks fit children better than standard commercial masks for non-invasive ventilation (NIV). Fifteen children aged 8-12 who already use NIV but have poor adherence will try a custom mask made from a 3D facial scan. Researchers will …

This study looks at whether the Alexander technique, a method that teaches better posture and movement habits, can help children aged 5 to 9 with Duchenne muscular dystrophy control their upper limbs and feel better day-to-day. About 33 kids will take part, and researchers will m…

This study tests whether sensory exercises can improve repetitive behaviors, communication, social interaction, and motor skills in children with autism. About 26 children aged 5 to 11 will take part. Researchers will measure changes using standard questionnaires before and after…

This study tests a 12-week supervised rehabilitation program for people with two rare genetic conditions that cause walking and balance problems (spastic ataxias). The program includes twice-weekly therapy sessions and once-weekly pool exercises. Researchers want to see if it red…

This study looks at whether watching an animated film or reading a storybook can lower fear and anxiety in children aged 7 to 12 who have just been diagnosed with type 1 diabetes. About 64 children will take part, and their anxiety levels will be measured using special child-frie…

This study tests whether playing with a therapeutic toy doll before getting a shot can reduce fear, anxiety, and pain in children aged 4-6. Half the kids will practice the injection steps on a doll first, while the other half get the shot as usual. Researchers will measure fear a…

This study tests whether a mindfulness-based emotion regulation training program can help children aged 7-11 who are hospitalized for at least four days feel less afraid and better control their emotions. Half of the 54 participants will receive the training alongside usual care,…

This study tests a virtual behavioral therapy (Functional Behavioral Training) for children aged 2-12 with genetic syndromes like Fragile X, Angelman, or Rett syndrome who have challenging behaviors. The therapy teaches parents how to identify what triggers problem behaviors and …

This study looks at whether doing adapted physical activity every day can improve sleep quality in children aged 5 to 16 who are being treated for blood cancer. About 30 children will take part, with some exercising daily and others just once over four days. Parents will track sl…

This study looks at whether doing Bulgarian bag exercises—like squats and lunges with a weighted bag—can improve lower limb function, posture, and balance in healthy school children aged 8 to 16. About 345 kids will take part, doing exercises guided by a therapist. Researchers wi…

This study looks at whether the Alexander Technique, a method that teaches better posture and movement, can help teenagers aged 13 to 16 with upper cross syndrome (a common postural problem). Thirty-six participants will either practice the Alexander Technique at home with parent…

This study tests whether a 12-week Pilates program can reduce pain and improve trunk muscle endurance in 140 children aged 12-16 who have backpack syndrome. One group does Pilates twice a week, while the other does standard stretching. Researchers will measure pain levels and how…

This study at the National Institutes of Health looks at how infections can worsen symptoms in people with mitochondrial disease, a group of disorders that affect energy production in cells. Researchers will evaluate participants' immune systems through blood tests, physical exam…

This study looks at how well people with Anderson-Fabry disease can exercise and how their hearts respond to stress. Researchers will use treadmill tests, echocardiograms, and heart scans to measure heart function during rest and exercise. The goal is to find better ways to detec…

This study aims to learn more about rare inherited disorders that affect the brain, spinal cord, muscles, and nerves. Researchers will collect medical history, perform exams, and run genetic tests on up to 3,500 participants. No new treatments are tested; the goal is to better un…

This study looks at children with suspected or confirmed genetic and metabolic disorders to find new disease-causing gene mutations. Researchers will analyze blood samples for DNA and metabolites, and in some cases take a small skin sample. The goal is to better understand these …

This study aims to learn more about the genetics and natural history of autoinflammatory diseases, which cause repeated fevers and inflammation. Researchers will study up to 5,000 people, including patients, their relatives, and healthy volunteers. Participants provide blood and …

This study follows people with rare genetic disorders that cause harmful substances to build up in the body, leading to brain damage. Researchers will monitor up to 200 participants over time using exams, surveys, and lab tests. The goal is to better understand how these diseases…

This study looks at anxiety related to cancer screenings in adults with Fanconi anemia, a rare condition that raises cancer risk. Researchers will observe 20 participants during their regular screening visits, noting body language, worries, and the clinic environment. No treatmen…

This study looks at gum disease in people with rare kidney disorders like Alport syndrome, Fabry disease, and tuberous sclerosis, as well as lupus. Researchers will compare 100 participants to those with chronic kidney disease and healthy controls. They aim to understand how comm…

This study is a long-term registry that collects health information from people with Fabry disease, a rare genetic disorder. It does not test any new treatments; instead, it follows up to 9,000 patients worldwide to better understand how the disease progresses and how current tre…

This study enrolls up to 15,000 children with known or suspected endocrine or metabolic disorders, along with their family members. Researchers will collect medical records, blood, saliva, and other samples to identify genetic changes linked to these conditions. The goal is to be…

This study is creating a large collection of blood, urine, stool, and heart tissue samples from 10,000 people with and without heart or metabolic conditions. The goal is to store these samples along with medical information to speed up future research into what causes these disea…

This study follows up to 3,000 people who have, are at risk for, or are related to someone with a parathyroid disorder. Researchers will collect medical records, questionnaires, and samples like blood and saliva to learn what causes these conditions and how they change over time.…

This study aims to discover new genes that may cause certain cancers to run in families. Researchers will collect blood samples and health information from 1,500 people in families where multiple members have had cancer, especially childhood cancers. The goal is to build a regist…

This study is observing 55 children and adults in Russia who have hypophosphatasia (HPP), a rare genetic bone disease. Researchers will track symptoms, lab results, and quality of life to learn how the disease naturally progresses. No treatments are being tested—the goal is to ga…

This study follows 400 people with mitochondrial disease and their household members to learn how infections affect them. Researchers will analyze blood samples and health records to find immune patterns linked to severe illness. The goal is to improve care and identify potential…

This study monitors up to 50 people with MPS VII (Sly Syndrome) to understand how the disease changes over time. It also checks the long-term safety and effectiveness of the drug vestronidase alfa. Participants may or may not be taking the drug, and the study involves regular che…

This natural history study follows up to 4,000 people with inherited bone marrow failure syndromes (IBMFS) and their families to learn why they are prone to certain cancers. Researchers will track health over time, collect genetic samples, and look for clues that separate those w…

This study follows people with Fanconi anemia, a rare inherited condition that raises the risk of certain cancers, especially squamous cell carcinoma. Researchers will screen 200 participants aged 12 and older every year for up to 10 years using exams, blood tests, and imaging to…

This study collects blood, bone marrow, and other samples along with health information from up to 1,716 people with non-cancerous blood diseases and their family members. Researchers will analyze the participants' genes to find new genetic causes of these conditions and understa…

This natural history study is observing up to 250 people with Smith-Lemli-Opitz syndrome and related cholesterol disorders, as well as their relatives. Researchers will track symptoms, development, and lab results over several years to find better ways to measure disease progress…

This study looks at facial features of males aged 2 to 40 with creatine transporter deficiency (CTD), a genetic disorder that causes intellectual disability, seizures, and behavioral issues. Researchers will examine photos of participants to see if they share common facial traits…

This study gathers medical information from people with MNGIE, a rare genetic disease that affects the nerves and digestive system. Researchers want to learn how the disease progresses and find better ways to measure it. Up to 50 patients worldwide can join, and no new treatments…

This study tests a new communication tool called 'Let's Get REAL' that helps children and teens (ages 8-17) and their families talk together about stem cell transplant or cellular therapy decisions. The goal is to see if the tool is easy to use and helpful for families. About 60 …

This study tracks the natural course of fucosidosis, a rare genetic disorder, in up to 57 people. It collects medical history and ongoing health data without giving any experimental treatment. The goal is to better understand the disease and help design future therapies.

This study is for people with rare DNA repair disorders like Cockayne syndrome, xeroderma pigmentosum, or trichothiodystrophy. Researchers will watch how symptoms like movement and balance change over time. No treatments are given—the goal is to better understand these conditions…

This study looks at people with creatine transporter deficiency, a rare genetic condition that causes intellectual disability, seizures, and movement problems. Researchers want to find the best tests to measure symptoms, since many standard tests are too hard for these patients. …

This registry collects information from people with inherited retinal diseases, like retinitis pigmentosa and Stargardt disease. Participants share their symptoms, family history, and genetic test results online. The goal is to help researchers understand these rare diseases and …

This study follows 450 US adults with Fabry disease who are taking migalastat or enzyme replacement therapy. Researchers will track kidney function, heart and brain events, and quality of life over time to see how well these treatments work in everyday practice.

This study is for children with Morquio A, a rare genetic disease that affects bones and breathing. Researchers will use safe, non-invasive tests like MRI, X-rays, hearing tests, and walking analysis to track how the disease changes over time. The goal is to better understand the…

This study follows 30 children and young adults with Sanfilippo syndrome type C, a rare genetic disorder that causes severe brain damage. Researchers will measure changes in development and thinking skills over time using standard tests. The goal is to better understand how the d…

This study looks at whether measuring telomeres—parts of our cells linked to aging—can help explain why some women still can't get pregnant even after fertility treatments. Fifteen women aged 25 to 42 will get blood tests to check their biological age, then receive a personalized…

This study looks at whether brain wave tests (EEG) done before and after heart surgery in babies under 1 year old can predict later learning or behavior problems, such as autism or ADHD. About 50 infants will be followed to age 2. The goal is to find early warning signs so that c…

This study looks at how the body's cells use oxygen in people with long COVID compared to those fully recovered. Researchers will measure oxygen use in blood cells, skin, and muscle to see if there are differences. The goal is to better understand long COVID and test if these mea…

This study aims to find biological markers in the blood that may help explain brain development disorders like autism, epilepsy, and brain tumors. Researchers will compare children with and without these conditions to identify unique patterns. Up to 500 children will participate …

This study follows 500 adults (400 with mitochondrial disease and 100 healthy or other-disease controls) for up to 10 years. Researchers collect medical data and samples to create a biobank, aiming to better understand how the disease progresses and to find ways to diagnose it ea…

This study looks at medical records of 1000 children with conditions like autism, epilepsy, and Down syndrome to find common biological patterns. Researchers want to understand what causes these disorders and how children respond to treatments. The goal is to improve diagnosis an…

This study is testing whether a special type of cardiac MRI can find early signs of heart damage in people with Fabry disease. Researchers will follow 300 adults with Fabry disease over time, using MRI, ECG, and blood tests to see which patients later develop serious heart proble…

This study watches 150 adults with heart valve problems who are getting a procedure (TAVI or M-TEER) to see if it helps their sleep-disordered breathing. Participants take a sleep test before the procedure and again 6 months later. The goal is to learn how fixing heart valves mig…

This study collects information from up to 250 patients with lysosomal storage diseases (like certain forms of MPS, Pompe, Gaucher, and Wolman disease) to understand how these conditions develop and respond to treatments given before birth. Researchers will track symptoms, lab re…

This study looks at DNA methylation patterns (chemical tags on DNA) in fetuses with rare genetic diseases. Researchers will analyze DNA from amniotic fluid and tissue samples to create reference signatures. The goal is to improve diagnosis of these conditions before birth. The st…

This study is creating a large digital registry to find and understand rare forms of diabetes caused by a single gene (monogenic diabetes). Researchers will enroll up to 5,000 people in China who were diagnosed with diabetes at a young age and test their DNA. The goal is to learn…

This 10-year observational registry will follow up to 10 women with Fabry disease who received pegunigalsidase alfa (Elfabrio) around the time of pregnancy or while breastfeeding, along with their infants. Researchers will track pregnancy outcomes, birth defects, and infant healt…

This study looks back at the past 10 years to understand how a life-support machine called ECMO has been used in children across China. Researchers will gather information from 500 children, from newborns to 18-year-olds, to see how many survive after treatment, how long they nee…

This study follows 200 children and adults with hypophosphatasia (HPP), a rare genetic disorder that weakens bones and teeth. Researchers will collect medical history, track disease progression, and assess quality of life over time. The goal is to better understand how HPP affect…

This study looks at how exercise training changes muscle cells in people with mitochondrial myopathy, a rare disease that affects energy production. Researchers will compare a trained leg to an untrained leg in the same person, and also compare results with healthy volunteers. Th…

This study is creating a large network of hospitals across Italy to improve the diagnosis and understanding of rare cerebrovascular diseases (rCVDs), such as CADASIL, Fabry disease, and Moyamoya. Researchers will collect medical information and blood samples from 500 patients to …

This study looks at why diabetes can damage the heart even without clogged arteries. Researchers will examine heart tissue and use advanced imaging in 500 adults with heart failure, with or without type 2 diabetes. The goal is to find early warning signs and new treatment targets…

This study follows 40 men with Fabry disease for three years using a small device implanted under the skin that continuously records heart rhythms. The goal is to see how often dangerous heart rhythm problems occur and how they relate to other changes in the heart and body. No ne…

This observational study will follow 2000 children and adults with imprinting disorders—rare genetic conditions like Silver-Russell and Prader-Willi syndromes. Researchers aim to describe the natural history of these diseases and identify common metabolic profiles, risks for obes…

This observational study will follow up to 1,000 people in France with mucopolysaccharidosis (MPS), a group of rare genetic disorders. Researchers will collect medical data from patient records and ongoing checkups to map how the diseases progress and how current treatments affec…

This study is collecting information from children and adults with pyruvate dehydrogenase complex deficiency (PDCD), a rare genetic disorder that affects energy production in cells. Researchers will review medical records, ask participants about their health history, and perform …

This study tests whether a wrist-worn device can help monitor pregnant women with congenital heart disease. Researchers will track heart rhythms and other data from 50 participants to see if the wearable can detect early signs of trouble. The goal is to improve care and reduce th…

This study uses MRI scans to look for brain differences in people with metabolic diseases compared to healthy volunteers. Researchers will track changes over time and link them to body fat and other health measures. About 126 adults will take part at Ulm University Hospital. No d…

This study follows 30 people with hypophosphatasia (HPP) who are taking the drug asfotase alfa. Researchers want to see if the immune system can make the drug less effective or cause serious allergic reactions. Participants will be monitored for at least 5 years to track these ri…

This study follows 1500 people with rare genetic brain disorders to learn how these diseases progress. Researchers measure thinking, movement, and daily living skills over time, and also look at brain scans and body fluids. The goal is to better understand the diseases and how tr…

This study looks at how mitochondrial diseases might weaken the immune system. Researchers will collect blood samples from 60 people with confirmed mitochondrial disorders and compare their immune cells and antibodies to healthy controls. The goal is to better understand these im…

This study uses advanced heart MRI scans to look at blood flow patterns in people with different types of hypertrophic cardiomyopathy (thick heart muscle), including rare forms like Anderson-Fabry disease and cardiac amyloidosis. Researchers will also study first-degree relatives…

This study is creating a large registry and tissue bank for people with mitochondrial disorders. Researchers will collect medical information and samples from up to 1,000 participants, including those diagnosed with or suspected to have a mitochondrial disease. The goal is to gat…

This study looks at how kidney and bladder cancers use nutrients like sugar and fat to grow. Participants receive a harmless nutrient tracer during surgery or biopsy, and researchers collect blood and tissue samples to analyze cancer metabolism. The study does not change standard…

This study looks at how heart and blood vessel problems develop in people with MPS I and IVA. Over 4 years, 240 participants will get yearly heart ultrasounds, blood tests, and urine tests. The goal is to find reliable markers that can track heart health and guide future treatmen…

This study follows 300 people who carry a specific mitochondrial DNA mutation (m.3243A>G) that can cause symptoms like migraines, seizures, and hearing loss. Researchers will use brain scans, muscle tests, and cognitive assessments to track how the disease progresses over time. N…

This study is testing advanced heart MRI scans to better diagnose and predict risks for people with rare heart muscle diseases. Researchers will scan 1000 participants to see if these new imaging methods can identify conditions like Fabry disease and cardiac amyloidosis more accu…

This study is following 500 people with cerebral small vessel disease (CSVD) to see how their genes affect their brain scans, symptoms, and health over time. Participants get genetic testing and MRI scans at the start and again after 1-2 years. The goal is to better understand th…

This study follows 30 people with Zellweger Spectrum Disorder over 5 years to understand how their vision changes over time. Participants will have yearly vision tests, physical exams, and blood work. The goal is to define the course of retinal degeneration and find the best ways…

This study collects DNA from up to 1,000 adults with progressive supranuclear palsy (PSP), corticobasal syndrome (CBS), multiple system atrophy (MSA), or related conditions, plus their family members. Researchers will sequence participants' whole genomes to find genetic variants …

This study follows 130 adults with hypophosphatasia, a rare bone disorder, to understand how they are diagnosed and what symptoms they have. Researchers hope to find ways to reduce the long delay between first symptoms and diagnosis. No treatment is being tested; this is purely a…

This study follows people with peroxisome biogenesis disorders (PBD) to learn more about how the disease progresses. Researchers will collect medical records, test results, and images over time from up to 244 participants. No new treatments are being tested; the goal is to better…

Fabry disease is a rare genetic condition that can cause pain, heart and kidney problems, and strokes. This study follows 100 people aged 65 and older with Fabry disease for 5 years, comparing those who receive specific treatment with those who do not. Researchers will measure qu…

This study looks at whether adding certain nutrients to blood cells from people with septic shock can help restore the cells' energy-making machinery (mitochondria). Researchers will collect blood samples from 55 patients in the ICU and test these nutrients in the lab. The goal i…

This study watches 25 people with Fabry disease to see how the drug agalsidase alfa changes heart inflammation over one year. Participants get special heart scans (PET-CMR) at the start and after 12 months of treatment. The goal is to learn if the drug reduces inflammation in the…

This study aims to learn how the binding of RNA with DNA (called R-loops) is linked to amyotrophic lateral sclerosis type 4 (ALS4) and other inherited neurological disorders. Researchers will observe up to 330 people aged 5 and older, including those with ALS4, related conditions…

This study is testing a new non-invasive device that uses laser speckle to measure blood flow and structure inside the eye. Researchers will compare these images with standard vision tests in 500 people with various retinal conditions. The goal is to see if this technology can be…

This study looks at people who carry genetic changes linked to Leber Hereditary Optic Neuropathy (LHON) but still have normal vision. Researchers want to see if certain chemicals in the blood and tears can signal early nerve damage in the eye, before vision loss occurs. The goal …

This study looks at whether a special bed that gently moves your legs (passive exercise) can improve how the body uses oxygen in people with mitochondrial disease. Researchers will compare patients to healthy volunteers and also test the bed in children in the ICU. The goal is to…

This study collects medical information and biological samples (like blood or tissue) from up to 12,000 people with leukodystrophies—rare disorders that damage the brain's white matter. Researchers will use this data to find new genetic causes, develop biomarkers for future trial…

The SMILE study is tracking 10,000 adults aged 18 and older to see how sarcopenia (age-related muscle loss) and metabolic diseases like diabetes influence overall health and lifespan. Researchers will collect data from medical records, tests, and surveys over time. This is an obs…

This study follows 150 people with primary mitochondrial myopathy, a rare genetic muscle disease, to understand how the condition changes over time. Researchers will measure muscle function, biomarkers, and imaging to find signs of disease progression. The goal is to identify use…

This observational study aims to better understand primary mitochondrial myopathy, a rare muscle disease. Researchers will follow 1300 patients and healthy controls, measuring muscle strength, balance, and daily function over time. The goal is to develop and validate tools to tra…

This study looks at how blood flow and metabolism affect brain development in children with sickle cell anemia. Researchers will use MRI scans and a special mask to have participants breathe carbon dioxide, which helps measure how well brain blood vessels expand. The goal is to u…

This study is testing whether using rapid genetic sequencing can help doctors diagnose and treat birth defects in newborns in intensive care. Researchers will enroll 2,000 babies and compare death rates, disability rates, and genetic findings. The goal is to see if personalized t…

This study aims to learn more about rare disorders that affect how the body processes chemicals called pyrimidines and purines. These disorders can cause problems in the brain, blood, kidneys, and immune system, ranging from mild to life-threatening. Researchers will compare test…

This study follows 100 children under 18 who are already on a ketogenic diet for conditions like drug-resistant epilepsy, autism, chronic migraine, or brain tumors. Researchers want to see if the diet supports healthy growth, improves symptoms, and boosts quality of life. The die…