Methylcobalamin deficiency type cblG
MONDO:0009609Methylcobalamin deficiency cbl G type is a rare condition that occurs when the body is unable to process certain amino acids (building blocks of protein) properly. In most cases, signs and symptoms develop during the first year of life; however, the age of onset can range from infancy to adulthood. Common features of the condition include feeding difficulties, lethargy, seizures, poor muscle tone (hypotonia), developmental delay, microcephaly (unusually small head size), and megaloblastic anemia. Methylcobalamin deficiency cbl G type is caused by changes (mutations) in the MTR gene and is inherited in an autosomal recessive manner. Treatment generally includes regular doses of hydroxycobalamin (vitamin B12). Some affected people may also require supplementation with folates and betaine.
Also known as: functional methionine synthase deficiency type cblG, methylcobalamin deficiency type cblG, HMAG, cblG, homocystinuria due to defect in methylation Cbl g, homocystinuria-megaloblastic Anaemia due to defect in cobalamin metabolism, cblG complementation type, homocystinuria-megaloblastic Anemia due to defect in cobalamin metabolism, cblG complementation type, homocystinuria-megaloblastic anemia, cblG complementation type
20 clinical trials for this condition and its sub-types.
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A simple drink may help seniors rebuild strength after illness
Disease control Not yet recruitingThis trial tests whether adding a twice-daily nutritional drink to standard care helps adults aged 55 and older regain weight and muscle strength after being hospitalized for an acute illness. Participants are at risk of malnutrition and have low grip strength. Half receive the d…
Phase: NA • Sponsor: Abbott Nutrition • Aim: Disease control
Last updated Aug 09, 2026 00:00 UTC
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Could a simple packaging change help more children get the nutrients they need?
Disease control Not yet recruitingThis study tests whether giving caregivers a weekly bulk container (7-day supply) versus daily single-use sachets (1-day supply) of a nutrient supplement improves how much children actually consume. About 500 caregivers of children aged 6-24 months in northern Ghana will try both…
Phase: NA • Sponsor: Boston University Charles River Campus • Aim: Disease control
Last updated Jul 12, 2026 00:00 UTC
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Could a painless light sensor replace the needle for anemia screening?
Diagnosis Not yet recruitingThis study tests whether a non-invasive device that uses light to measure hemoglobin through the skin can accurately detect anemia. Researchers will compare its readings with standard blood tests in 150 adults in Jakarta. If the device proves reliable, it could offer a quick, pai…
Sponsor: Tarumanagara University • Aim: Diagnosis
Last updated Jul 17, 2026 00:00 UTC
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Hidden gut parasites could be making malnourished kids sicker
Knowledge-focused Not yet recruitingThis study in Assiut, Egypt, will check 116 children aged 2-15 for intestinal parasites to see if these infections are more common in malnourished kids compared to healthy ones. The goal is to understand how parasites like Giardia and hookworms might cause or worsen malnutrition …
Sponsor: Assiut University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC