The FIAT study investigates the effectiveness of FBT compared to full inpatient treatment for children and adolescents with AN who are indicated for inpatient treatment.

FBT is an outpatient, disorder-specific, manualised psychotherapy for medically stable children and adolescents with AN.

Children and adolescents between the ages of 8 and 17 who have been diagnosed with anorexia nervosa of the restrictive or binge/purge subtype and who require inpatient treatment can participate. In addition, patients must be a member of a public health insurance company and have a sufficiently stable internet connection, in order to be able to participate in the FBT telemedically in the case of randomisation to the FBT arm. In addition, the family must be willing to travel to their participating clinic for medical examinations. Before the start of the study, all participants must provide written consent to taking part in the study.

Families whose child is admitted to one of the FIAT study centres for inpatient therapy and meets the participation criteria will receive an invitation to take part in the study from the responsible treatment team.

No, participation is also possible if you are scheduled to be admitted as an inpatient but have not yet been admitted.

When an inpatient bed space is available in one of the participating clinics, the exact family whose child is to receive this place will be considered for the study.

If study participation is offered to you by a study centre and you can travel the distance for the regular (usually weekly) medical check-ups at the beginning, participation is possible.

At this point, standard healthcare services will be available to you for ongoing needs and follow-up examinations.

Yes, in general this is possible, even if experience suggests that it involves more effort for the single parent.

The progress of therapy is continuously monitored by the FBT team and if it is insufficient, FBT is terminated and a transfer to another suitable form of care, such as inpatient therapy, is recommended.

You may end your participation in the study at any time, even without giving a reason. In the case of SMT, you will continue to receive this therapy; in the case of FBT, it will be stopped.

Before the study begins, the study team will carry out a detailed assessment to determine eligibility for the study and inform you and your family of the results.

Before the study begins, the study team will carry out a detailed assessment to determine eligibility for the study. It may also be the case that you are too unwell to take part in the study. You will receive detailed feedback on this after the study eligibility assessment.

Unfortunately this is not possible. During FBT, as with inpatient therapy, pre-existing therapies must be suspended. However, if necessary, it is possible to resume this therapy after the completion of FBT.

Unfortunately this is not possible. During FBT, as with inpatient therapy, pre-existing appointments with an outpatient psychiatrist must be paused. However, if necessary, this treatment can be resumed after the completion of FBT. A psychiatrist from the FBT study team can be consulted during FBT.

During FBT, it is possible to see your paediatrician for all matters except for the treatment of AN.

The FIAT study investigates the effectiveness of FBT compared to full inpatient therapy in children and adolescents with AN who are indicated for inpatient treatment.

FBT is an outpatient, disorder-specific, manualised psychotherapy for medically stable children and adolescents with AN.

Children and adolescents between the ages of 8 and 17 who have been diagnosed with anorexia nervosa of the restrictive or binge/purge subtype and who require inpatient treatment can participate. In addition, patients must be a member of a public health insurance company and have a sufficiently stable internet connection, in order to be able to participate in the FBT telemedically in the case of randomisation into the FBT arm. In addition, the family must be willing to travel to their participating clinic for medical examinations. Before the start of the study, all participants must provide written consent to taking part in the study.

No, participation is possible even if hospitalisation is planned but has not yet taken place.

If an inpatient bed space is available in one of the participating clinics, the family whose child is to receive this space will be offered a place in the study.

Before the study begins, the study team will carry out a detailed examination to determine suitability for the study.

Before the study begins, a detailed examination is carried out by the study team to determine suitability for the study. It is also possible that the illness is too severe for the individual to take part in the study. The family will receive detailed feedback on this after the study eligibility assessment.

This is not possible; during FBT, as with inpatient therapy, pre-existing therapies must be paused. If necessary, however, it is possible to resume this therapy after the completion of FBT.

This is not possible; during FBT, as with inpatient therapy, the pre-existing appointments with an outpatient psychiatrist must be paused. However, if necessary, this treatment can be resumed after the completion of FBT. A psychiatrist from the FBT study team can be consulted during FBT.

During FBT, this is possible for all matters except for the treatment of AN.