NCT06677866

Brief Summary

Fragile X Syndrome (FXS) is a rare genetic syndrome, caused by a mutation in the FMR1 gene located on the X chromosome. It is considered the leading hereditary cause of intellectual disability (ID) and the primary cause of Autism Spectrum Disorder (ASD) due to a single gene-mutation. Many individuals with FXS exhibit symptoms overlapping with those of ASD, including difficulties in social-communication skills, challenges in peer relationships, restricted and repetitive behaviors/interests and deficits in adaptive functioning. Both in ASD and FXS, individuals with greater deficits in executive functions, socio-pragmatic, and socio-relational skills also demonstrate lower adaptive functioning and, consequently, reduced autonomy/independence throughout the life course and greater severity of the disorder. Among empirically validated treatments recommended by National and International Guidelines for the treatment of ASD, cognitive-behavioral and psychosocial interventions have been shown to improve some aspects of ASD, such as core symptoms, emotional-behavioral disturbances, adaptive skills, and quality of life. Currently, it appears that cognitive-behavioral therapies, which include psychoeducation programs, are particularly appropriate for ASD, with greater efficacy for group interventions compared to individual ones. Regarding FXS, despite the well-established knowledge of the cognitive-behavioral phenotype and the clear need for scientifically validated programs, research on intervention strategies remains quite limited. Considering the similarities between ASD and FXS and the need for standardized interventions, the present research project aims to conduct an RCT to evaluate the feasibility of Cooperative Group Therapy (CGT) in two different groups of adolescents with ASD and FXS. The decision to target the intervention to adolescents is due to the few clinical studies on this age group, which is a crucial target since, in FXS, there is often a plateau or reversal of intellectual and adaptive development after the age of 10, and in adolescents with ASD, the development and complexity of social, pragmatic skills, and executive functions are crucial for good adaptive functioning and a basic quality of life. Te main hypothesis is that CGT could contribute to the reduction of severity illness and in the enhancement of socio-communicative skills.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2022

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 15, 2024

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

October 23, 2024

Completed
15 days until next milestone

First Posted

Study publicly available on registry

November 7, 2024

Completed
1.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

November 8, 2024

Status Verified

November 1, 2024

Enrollment Period

2 years

First QC Date

October 23, 2024

Last Update Submit

November 7, 2024

Conditions

Keywords

intellectual disabilityadaptive functioningquality of liferare genetic syndromeCognitive Behavioral TherapyCBTfragile x syndromeautism spectrum disorderneuropsychology

Outcome Measures

Primary Outcomes (1)

  • Global Clinical Impression - Severity Scale (CGI-S)

    \- Clinical improvement: Clinical Global Impression - Severity scale Clinical Global Impression - Severity scale is a 7-point scale used to measure baseline severity of patients (Higher scores indicate more severe patient)

    6 months

Secondary Outcomes (12)

  • Clinical Global Impression - Improvement scale (CGI-I)

    6 months

  • Child Behavior Checklist 6-18 (CBCL 6-18)

    6 months

  • Total Scale and the Subdomains of the Vineland Adaptive Behavior Scales, Second Edition (VABS-II)

    6 months

  • Parenting Stress Index Short Form (PSI- SF)

    6 months

  • Pediatric Quality of Life- Family Impacts

    6 months

  • +7 more secondary outcomes

Study Arms (4)

ASD-CGT- Treatment group (ASD-CGT)

EXPERIMENTAL

Group of adolescents with ASD that perform the intervention at the beginning of the study (ASD-CGT)

Behavioral: Cognitive behavioral therapy

FXS- Waiting List group (FXS-WL)

OTHER

Group of adolescents with FXS that perform the intervention once that the sections with the first group are ended (FXS-WL)

Other: Waiting List

FXS- CGT- Treatment group (FXS-CGT)

EXPERIMENTAL

Group of adolescents with FXS that perform the intervention at the beginning of the study (FXS-CGT)

Behavioral: Cognitive behavioral therapy

ASD- Waiting List group (ASD-WL)

OTHER

Group of adolescents with ASD that perform the intervention once that the sections with the first group are ended (ASD-WL)

Other: Waiting List

Interventions

Cooperative Group Therapy (CGT) is a cognitive-behavioral group therapy based on the theoretical and practical principles of the Cooperative Parent-Mediated Therapy model \[Valeri et al., 2020\]. The goal of CGT is to promote the following core skills: Pragmatics, Executive Functions, and Cooperative Interactions. The CGT program consists of 15 sessions over a total duration of 6 months: 12 group therapy sessions with adolescents and 3 sessions with their parents. Each session focuses on a specific topic and lasts between 90 and 120 minutes. The CGT therapist is a psychotherapist with a cognitive-behavioral orientation who utilizes evidence.-based strategies to enhance pragmatic, socio-conversational skills, cognitive flexibility, emotional regulation, and cooperative interactions. The CGT intervention is conducted by two cognitive-behavioral psychotherapists specialized respectively in the treatment of FXS and ASD.

ASD-CGT- Treatment group (ASD-CGT)FXS- CGT- Treatment group (FXS-CGT)

The Waiting List (WL) is a control group in which participants who do not receive the experimental treatment are placed on a waiting list to receive the intervention after the active treatment group has completed it. In the case of the WL, the CGT intervention is carried out after at least 6 months to allow the patients in the first group to complete the treatment cycle. This approach enables a comparison between a group of treated patients and a group of patients who have not yet been treated, while still allowing the latter to access the treatment at a later stage.

ASD- Waiting List group (ASD-WL)FXS- Waiting List group (FXS-WL)

Eligibility Criteria

Age13 Years - 19 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Clinical diagnosis of FXS confirmed by genetic testing.
  • Age between 13 and 19 years.
  • Language skills compatible with group intervention (verbal language at sentence level).
  • Impairment in adaptive functioning measured by VABS II \< 70.

You may not qualify if:

  • Severe visual or hearing impairments.
  • Diagnosis of epilepsy or a history of seizures requiring medication.
  • Participation in other non-pharmacological treatments.
  • Changes in pharmacological therapy within the last 3 months.
  • Presence of medical problems or behaviors that could interfere with group activities, as measured by the Autism Behavior Checklist (ABC) (ABC Irritability Scale \< 18).
  • IQ \< 40 measured by the Leiter third edition (Leiter 3)
  • Severe adaptive functioning, measured by VABS II \< 20.
  • ASD group:
  • Clinical diagnosis of Autism Spectrum Disorder (ASD) confirmed by ADOS-2 and ADI-R interviews.
  • Age between 13 and 19 years.
  • Language skills compatible with group intervention (verbal language at sentence level).
  • Impairment in adaptive functioning measured by VABS II \< 70.
  • Informed consent for participation and data processing provided by parents.
  • Severe visual or hearing impairments.
  • Identification of specific genetic abnormalities or presence of known genetic syndromes associated with ASD (e.g., TSC, FXS, 22q11, 16p11.2, Rett Syndrome).
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Bambino Gesù Children's Hospital

Rome, 00165, Italy

RECRUITING

Related Publications (3)

  • Valeri G, Casula L, Menghini D, Amendola FA, Napoli E, Pasqualetti P, Vicari S. Cooperative parent-mediated therapy for Italian preschool children with autism spectrum disorder: a randomized controlled trial. Eur Child Adolesc Psychiatry. 2020 Jul;29(7):935-946. doi: 10.1007/s00787-019-01395-5. Epub 2019 Sep 23.

  • Alfieri P, Scibelli F, Casula L, Piga S, Napoli E, Valeri G, Vicari S. Cooperative Parent-Mediated Therapy in Children with Fragile X Syndrome and Williams Beuren Syndrome: A Pilot RCT Study of a Transdiagnostic Intervention-Preliminary Data. Brain Sci. 2021 Dec 23;12(1):8. doi: 10.3390/brainsci12010008.

  • Montanaro FAM, Alfieri P, Caciolo C, Spano G, Bosco A, Vicari S. Effects of a combined neuropsychological and cognitive behavioral group therapy on young adults with Fragile X Syndrome: An explorative study. Res Dev Disabil. 2024 Nov;154:104839. doi: 10.1016/j.ridd.2024.104839. Epub 2024 Sep 26.

MeSH Terms

Conditions

Fragile X SyndromeAutism Spectrum DisorderIntellectual Disability

Interventions

Cognitive Behavioral TherapyWaiting Lists

Condition Hierarchy (Ancestors)

X-Linked Intellectual DisabilityNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSex Chromosome DisordersChromosome DisordersCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesGenetic Diseases, InbornGenetic Diseases, X-LinkedHeredodegenerative Disorders, Nervous SystemChild Development Disorders, PervasiveNeurodevelopmental DisordersMental DisordersSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Behavior TherapyPsychotherapyBehavioral Disciplines and ActivitiesAppointments and SchedulesOrganization and AdministrationHealth Services Administration

Study Officials

  • Paolo Alfieri, MD, PhD

    Bambino Gesù Children's Hospital

    PRINCIPAL INVESTIGATOR
  • Stefano Vicari, MD, clinical professor

    Bambino Gesù Hospital and Research Institute

    STUDY CHAIR

Central Study Contacts

Alice Federica M Montanaro, PsyD

CONTACT

Paolo Alfieri, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The study is conducted by four main professionals: the neuropsychiatrist principal investigator (Dr. Paolo Alfieri) responsible for the FXS treatment group; the neuropsychiatrist (Dr. Giovanni Valeri) responsible for the ASD treatment group; the cognitive behavioral therapist performing the intervention with the FXS treatment group (Dr. Alice Federica Maria Montanaro) and the cognitive behavioral therapist performing the intervention with the ASD treatment group (Dr. Laura Casula). The two neuropsychiatrists conducting the clinical evaluation of the severity of the disorder and the presence of changes following the intervention (using the CGI-S scale) remain blind to treatment allocation during the trial and analyses until the conclusion of the study. Furthermore, the evaluating psychologists (who are different from the two therapists performing the intervention) and a speech therapist perform blinded assessments at T0-T1-T2.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
medical doctor

Study Record Dates

First Submitted

October 23, 2024

First Posted

November 7, 2024

Study Start

September 1, 2022

Primary Completion

September 15, 2024

Study Completion

December 31, 2025

Last Updated

November 8, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations