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Pilot study of folinic acid vs folic acid supplementation in pregnant women with folate receptor alpha autoantibodies to lower the risk of autism and learning disorders in their children

Folate receptor alpha antibody-positive pregnancies: a randomized controlled trial comparing folinic acid vs folic acid supplementation and risk of autism spectrum and learning disorders in offspring – pilot study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN96269039
Enrollment
18
Registered
2025-05-23
Start date
2023-04-01
Completion date
Unknown
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neurodevelopmental disorders, specifically autism spectrum disorder and early learning disabilities in offspring of pregnant women with folate receptor alpha autoantibodies Mental and Behavioural Disorders

Interventions

Participants will be randomly assigned in a 1:1 ratio using a computer-generated randomisation list. Allocation concealment will be ensured through the use of sealed, opaque envelopes. Both participan

Sponsors

Altamedica
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Pregnant women in the first trimester of gestation 2. Singleton pregnancy (no multiple gestation) 3. Age between 18 and 42 years 4. Positive for folate receptor alpha autoantibodies (FRAA) — either blocking or binding type 5. Nulliparous (no previous pregnancies beyond 20 weeks) 6. Willing and able to provide written informed consent 7. Willing to comply with the intervention and follow-up schedule until 24–30 months postpartum

Exclusion criteria

Exclusion criteria: 1. Multiple pregnancy (e.g., twins or more) 2. Presence of genetic or structural fetal abnormalities detected at baseline 3. Maternal epilepsy or current use of antiepileptic drugs 4. Maternal diabetes mellitus (pre-gestational or gestational) 5. Chronic use of antifolate medications (e.g., methotrexate, sulfasalazine) 6. Any serious maternal medical condition that could interfere with participation or outcome assessment 7. Inability or unwillingness to comply with the treatment or follow-up schedule

Design outcomes

Primary

MeasureTime frame
Neurodevelopmental benefit is measured as a reduction in the incidence of autism spectrum disorder (ASD), using the M-CHAT-R/F screening tool followed by DSM-5 confirmation, at 24–30 months of age in children of FRAA-positive pregnant women receiving folinic acid versus folic acid

Secondary

MeasureTime frame
1. ASD severity measured using Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) and Autism Diagnostic Interview – Revised (ADI-R) at 24–30 months of age 2. ASD subtype classification measured using ADOS-2 and ADI-R at 24–30 months of age 3. Cognitive development measured using the Bayley Scales of Infant and Toddler Development, Fourth Edition (Bayley-4) at 24–30 months of age 4. Early learning ability measured using the Mullen Scales of Early Learning at 24–30 months of age 5. Adaptive behavior measured using the Vineland Adaptive Behavior Scales, Third Edition (Vineland-3) at 24–30 months of age

Countries

Italy

Contacts

Public ContactAlvaro Mesoraca
alvaro.mesoraca@artemisia.it+39 (0)3398961106

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026