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WMT for autismespektrumforstyrrelse (ASD)

15. september 2026 opdateret af: Faming Zhang, The Second Hospital of Nanjing Medical University

Vasket mikrobiotatransplantation (WMT) for autismespektrumforstyrrelse (ASD)

Autism Spectrum Disorder (ASD) is a group of serious neurodevelopmental disorders. A significant comorbidity exists between ADHD and ASD: 30%-50% of individuals with ASD exhibit ADHD symptoms, and two-thirds with ADHD show ASD traits. Intestinal microbial disturbance is common in children with ASD. A great deal of evidence shows that intestinal microbes can influence the brain to play its role through "gut-brain-microbiota axis". We intend to explore the role of Washed Microbiota Transplantation in improving symptoms of children in ASD with or without ADHD; To study the potential etiological mechanism of WMT for the neurodevelopmental disorders.

Studieoversigt

Status

Rekruttering

Detaljeret beskrivelse

Very few literatures reported the clinical use of microbiota or bacteria for Autism Spectrum Disorder. The most effective strategy for reconstruction of gut microbiota should be fecal microbiota transplantation (WMT). Washed microbiota transplantation (WMT) can significantly reduce FMT-related AEs by removing parasite eggs, fecal particles, and fungi through a series of automated washing procedures. This study aims to evaluate the efficacy and safety of FMT for ASD. Patients received repeated WMT with fecal from healthy donors. Microbiota analysis will also be performed on both the donor and recipient stool sample prior to transplantation, and on the recipient sample at 3 month post transplantation. This study sought to evaluate the efficacy of washed microbiota transplantation (WMT) in children with ASD and explore the role of washed bacteria transplantation in improving ASD symptoms.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

80

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • Jiangsu
      • Nanjing, Jiangsu, Kina
        • Rekruttering
        • Department of Microbiota Medicine & Medical Centre for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University
        • Kontakt:
      • Nanjing, Jiangsu, Kina
        • Rekruttering
        • SIR RUN RUN hospital of Nanjing Medical University
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

3 år til 17 år (Barn)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Children and adolescents with an established diagnosis of ASD or ADHD + ASD according to the Diagnostic and Statistical Manual Of Mental Disorders Fifth Edition;.

Beskrivelse

Inclusion Criteria:

  • Children and adolescents with an established diagnosis of ASD or ADHD + ASD according to the Diagnostic and Statistical Manual Of Mental Disorders Fifth Edition;.
  • Age 3-17 years.
  • Received stable treatments for ≥1 month preceding WMT

Exclusion Criteria:

  • Their guardian could not understand the questionnaires or provide informed consent.
  • Diagnosed with a single-gene disorder, major brain malformations, gastrointestinal diseases (ulcerative colitis, Crohn's disease, or eosinophilic esophagitis)
  • Had severe comorbidities including cardiopulmonary failure, severe liver, and kidney diseases, severe infection, tumors, etc.
  • Accompanied with other life-threatening disorders required emergency treatment.
  • Unable to tolerate colonoscopy or anesthesia.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Washed microbiota transplantation

WMT

The prepared microbiota suspension was infused into the participates' lower gut.

Andre navne:
  • Transplantation af fækal mikrobiota

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Changes in the Autism Behavior Checklist (ABC) in ASD children
Tidsramme: baseline, 1 month , 3 months, 6 months post transplantation

ABC is a scale used for nonadaptive behaviors created to screen and indicate the probability of a diagnosis of autism. The questionnaire including 57 items related to five areas: sensorial, relational, use of body and objects, and social skills. Scale score> 67 strongly suggests the presence of autism.

baseline, 1 month , 3 months, 6 months post transplantation
Change in Autism Treatment Evaluation Checklist (ATEC) in ASD children
Tidsramme: baseline, 1 month,3 months, 6 months post transplantation

ASD symptoms will be assessed using the Chinese version of the Autism Treatment Evaluation Checklist (ATEC), which comprise four subscales to measure child speech/language/communication, sociability, sensory/cognitive awareness, and health/physical/behavior. The scale has 77 items that are scored by parents. The health/physical/behavior subscale is rated using a 0 (not a problem)-to-3 (serious problem) point scale, whereas the other three subscales are rated using a 0 (not true)-to-2 (very true) point scale. Higher scores represent more ASD symptoms.

baseline, 1 month,3 months, 6 months post transplantation

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Evaluate the difference of the gut microbe composition between children with ASD and healthy children by sequencing faecal metagenome.
Tidsramme: Fecal samples from ASD and healthy children were collected at baseline and 3 month, 6 months post transplantation.

The composition of the gut microbe was evaluated by sequencing faecal metagenome. We evaluate the differences in the structure of the flora and its metabolism between the two at the phylum, genus and species levels of the intestinal flora and control children, and to develop a model for predicting the structure of the flora.

Fecal samples from ASD and healthy children were collected at baseline and 3 month, 6 months post transplantation.
The Sleep Disturbance Scale for Children
Tidsramme: baseline, 1 month, 3 months, 6 months post transplantation

The Sleep Disturbance Scale for Children (SDSC) was used to assess sleep quality in children with ASD. It had 26 items, each with a score from 0-4. Higher SDSC scores indicated poorer sleep quality

baseline, 1 month, 3 months, 6 months post transplantation
The Gastrointestinal Symptom Rating Scale
Tidsramme: baseline, 1 month, 3 months, 6 months post transplantation

The Gastrointestinal Symptom Rating Scale (GSRS) was used to assess gastrointestinal symptoms. It was a 7-point Likert scale questionnaire with 15 items. The 15 items can be divided into 5 dimensions: abdominal pain (3 items), reflux (2 items), dyspepsia (4 items), diarrhea (3 items), and constipation (3 items).

baseline, 1 month, 3 months, 6 months post transplantation
Clinical Global Impressions-Improvement
Tidsramme: baseline, 1 months, 3 months, 6 months post transplantation

The Clinical Global Impressions-Improvement (CGI-I) evaluated by experienced clinician was used to assess the symptom changes relative to baseline, rated on a 7-point scale from 1 (very much improved) to 7 (very much worse) [26]. CGI-I = 1 or 2 was considered a clinical response.

baseline, 1 months, 3 months, 6 months post transplantation
The Chinese version of Swanson, Nolan, and Pelham-IV (SNAP-IV)
Tidsramme: At baseline, 1 month, 3 months and 6 months after WMT

It was a 26-item questionnaire that measured three of the ADHD symptoms, inattention (items 1-9), hyperactivity (items 10-18), and oppositional defiant disorder (items 19-26). The 26-item checklist was scored on a 4-point Likert scale ranging between Not At All (0) and Very Much (3).

At baseline, 1 month, 3 months and 6 months after WMT
Conners' Parent Rating Scale-Revised (CPRS-R)
Tidsramme: At baseline, 1 month, 3 months and 6 months after WMT

The CPRS-R was composed of 10 items derived from the Revised Conners Parent Rating Scale. It used a 4-point Likert scale (range: 0-30), with higher scores indicating more severe symptoms.

At baseline, 1 month, 3 months and 6 months after WMT

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Faming Zhang, PhD, The Second Hospital of Nanjing Medical University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

20. september 2023

Primær færdiggørelse (Anslået)

4. april 2027

Studieafslutning (Anslået)

1. maj 2027

Datoer for studieregistrering

Først indsendt

25. maj 2023

Først indsendt, der opfyldte QC-kriterier

7. september 2023

Først opslået (Faktiske)

11. september 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

15. september 2026

Sidst verificeret

1. september 2025

Mere information

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