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A feasibility and acceptability study of the SIBS group programme for siblings and parents of children with mental illness

SIBS-MI: a feasibility and acceptability study of the SIBS intervention programme for siblings and parents of children with mental illness in the United Kingdom

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN78415958
Enrollment
54
Registered
2025-10-15
Start date
2025-10-20
Completion date
Unknown
Last updated
2026-06-22

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

Conditions

Children (referred to as "siblings") aged 8 to 17 years, along with at least one of their parents, who have a child in the family receiving care from CAMHS for an eating disorder. Mental and Behavioural Disorders

Interventions

This is an exploratory pilot intervention study conducted in CAMHS to assess the feasibility and acceptability of an intervention targeting siblings and parents of children and young people with eatin

Sponsors

University of Oxford
Lead Sponsor

Eligibility

Sex/Gender
All
Age
8 Years to 17 Years

Inclusion criteria

Inclusion criteria: Sibling participants: 1. Aged 8 to 17 years of age 2. For siblings aged 8 to 15 years, parents must be able to provide free and informed consent, and the child must assent to participate 3. If the sibling is 16 years or older, they must be able to provide free and informed consent themselves 4. Have a sibling who receives care from CAMHS for an eating disorder. 5. The sibling may be biological, step, or adopted/foster sibling 6. Sufficient understanding of English to be able to give assent (16 years) and to take part in the intervention 7. One parent is available to participate in the study Parent participants: 1. Able to provide free and informed consent to participate 2. Have a child who receives care from CAMHS for an eating disorder. 3. Have at least one other child (sibling of the child or young person with a mental illness, including biological, step, or adopted/foster sibling) aged 8 to 17 years of age, who is available to participate in the intervention 4. Sufficient understanding of English to be able to give informed consent and to participate in the intervention, and to give assent for their child to participate, if the child is younger than 16 years old If recruitment proves challenging, the study may expand to include siblings and parents of children with other conditions (including mood disorders, anxiety, and psychosis) which is approved by the Research Ethics Committee (REC). HCP participants: 1. Being employed in CAMHS, and has delivered at least one SIBS group

Exclusion criteria

Exclusion criteria: Sibling participants: Currently receiving care in CAMHS for their own diagnosis of a mental illness

Design outcomes

Primary

MeasureTime frame
1. Feasibility of the SIBS intervention in UK CAMHS will be measured via the number of HCPs trained, the number of families recruited, the number of SIBS groups delivered (relative to the target of six NHS HCPs trained, 24 families recruited, and the delivery of four SIBS groups across two sites), and questionnaires (completed by HCPs) using study data at one timepoint 2. Acceptability of the SIBS intervention in UK CAMHS will be assessed through: 2.1. Satisfaction and perceived benefit measured using: 2.1.1 Questionnaires about perceived benefit and cultural applicability were developed and used in Norwegian studies of the intervention, and translated and adapted by the UK research team (siblings and parents); HCPs’ views on acceptability, appropriateness, and feasibility measured by the Implementation Outcome Measure questionnaire (IOM) 2.1.2. Semi-structured interviews with parents, siblings and HCPs 3. Group leader adherence measured using the Competence and Adherence Scale for CBT (CAS-CBT) 4. Attendance and dropout rates, and the reasons for any dropouts, measured using study data at one timepoint

Secondary

MeasureTime frame
Pilot measures of effectiveness. Questionnaires, potentially to be used in a larger prospective trial, will be administered to report descriptive statistics of the following, measured at baseline, post-intervention and 3 months post-intervention: 1. Siblings' psychological functioning (SDQ (sibling and parent reported)) 2. Siblings' quality of life (KINDL-R (sibling and parent reported)) 3. Family communication (The Family Communication Scale (FCS) (sibling and parent reported)) 4. Sibling diagnosis knowledge (Sibling Knowledge Interview (SKI)(conducted by researchers with the sibling, and rated by the researchers)) Exploratory qualitative outcomes: 1. Implementation will be measured qualitatively by exploring barriers and facilitators to sustained delivery as perceived by HCPs, siblings and parents, through qualitative interviews 2. Participants’ contributions to the intervention will be measured qualitatively to identify potential mechanisms of change by analysing transcripts of video and audio recordings of the intervention, to get insights into potential mechanisms of change. Topics to be explored: Siblings’ diagnosis knowledge, siblings’ emotions and experiences, and sibling-parent communication.

Countries

England, United Kingdom

Contacts

Public ContactAmalie Schumann
amalie.schumann@psych.ox.ac.uk+44 (0)1865 618210

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jun 29, 2026