Clinical trial NCT06626789: Brain Signal Training to Enhance Affect Down-regulation
Official title: A Multi-center, Patient-blinded and Investigator-blinded, Randomized, Parallel-group, Superiority Study to Compare the Efficacy of Four Sessions of Amygdala fMRI-BOLD Neurofeedback With Yoked Sham-control Neurofeedback in the Treatment of Dysregulated Affect in Borderline Personality Disorder
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE1
PHASE2
Conditions: Borderline Personality Disorder
Keywords: Neurofeedback
fMRI
Neuroimaging
Amygdala
Affect instability
Emotion
Lead sponsor: Central Institute of Mental Health, Mannheim
Sponsor class: OTHER
Collaborators: name: University Medical Center Freiburg
name: University of Giessen
name: University Hospital Tuebingen
First posted: 2024-10-04
Enrollment: 164
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Individuals with Borderline Personality Disorder (BPD) experience intensive, instable negative emotions. Hyperactivity of the amygdala is assumed to drive exaggerated emotional responses in BPD. Neurofeedback is an endogenous neuromodulation method to address the imbalance of neural circuits. Downregulation of amygdala hyperactivation with neurofeedback may ameliorate dysregulated emotions in BPD. The BrainSTEADy trial is designed to determine whether amygdala-fMRI-BOLD neurofeedback has a specific effect on affect instability in BPD beyond nonspecific benefit.

Detailed description: Borderline Personality Disorder (BPD) is characterized by self-mutilation, suicidality, and severe interpersonal disturbances. These symptoms reflect pervasive emotion regulation problems. On the neural level, BPD patients show an inflated amygdala response to emotional cues. In addition, they have reduced neural control of the amygdala. The amygdala controls emotional experience and behavior. Therefore, current psychobiological theories consider amygdala hyper-activity a causal mechanism for emotional overreaction in BPD.

Functional magnetic resonance imaging (fMRI) allows the recording of activation in subcortical brain regions, such as the amygdala, in real time. Live feedback from brain activation (e.g. via a thermometer with the temperature reflecting the degree of activation) allows one to learn the voluntary control of the brain. Dubbed "neurofeedback" (NF), the method can result in long-lasting changes in neural activation patterns. NF allows precise targeting of dysfunctional neuro-circuitries that relate to clinical symptoms.

The project proposed here investigates the clinical effectivity of fMRI-based amygdala-NF training in BPD. In total, 164 patients will participate in four training sessions provided by four study centers: Tuebingen, Freiburg, Giessen, and Mannheim. The training aims to reduce affective instability in everyday life, which is assessed primarily by ambulatory assessment before and after treatment. During NF sessions, patients receive feedback from the BOLD (Blood Oxygenation Level Dependent) signal recorded in the amygdala while they view pictures with negative emotional content. The amygdala responds to these pictures with an activation increase. The patient observes the amygdala responding, illustrated via increased temperature in a thermometer beside the picture. The task is to decrease temperature. The procedure should teach patients to master overreaction at an early stage of neural emotion processing.

To assess the effectivity of amygdala-NF, a control group receives non-veridical feedback from a different patient. The investigators expect a significant reduction in affective instability with amygdala-NF. In addition, the investigators expect a greater reduction in affective instability in the amygdala-NF group versus the control group.

The trial will go through two stages of recruitment. Stage 1 is reached after recruitment of 82 participants. An interim analysis will be conducted. Depending on the results of the interim analysis, the trial will enter stage 2, ie. recruitment of the full number of planned participants.

Results from this study enable assessment of clinical efficacy of amygdala-NF. In the future, NF could serve as a precise tool for person-centered treatment of affective instability symptoms in mental disorders with severe emotion regulation problems such as BPD.

Eligibility criteria: Stage 1: 82 patients, stage 2: 82 patients Inclusion Criteria

1. 18-65 years
2. Diagnosis of Borderline Personality Disorder
3. Insufficient response to ≥2 therapies.
4. Sufficient German language skills to give informed consent to the study, to understand questions posed by used instruments, and capable of completing the fMRI tasks
5. Ability of subject to understand character and individual consequences of clinical investigation
6. Written informed consent (must be available before enrollment in the clinical investigation)
7. For women of childbearing potential (WOCBP) adequate contraception.

Exclusion Criteria

1. Treatment with benzodiazepines within 7 days prior the initial screening
2. Current alcohol or substance dependence
3. Meeting the diagnostic criteria for a psychotic disorder or schizophrenia (life-time), as determined by clinical interview at initial screening
4. Current or history of significant neurological condition (such as stroke, traumatic brain injury, space occupying lesions, multiple sclerosis, Parkinson's disease, vascular dementia, transient ischemic attack)
5. Significant visual impairment that might interfere with the performance of the behavioural tasks or fMRI tasks
6. Change of treatment (psychopharmacologic, psychological) 2 weeks prior to or during the study participation
7. Treatment with any neurofeedback three months prior to or during the study participation.
8. Unable or unwilling to comply with study procedures, including study prohibitions and restrictions
9. History of claustrophobia or inability to tolerate scanner environment
10. Fulfilling any of the MRI contraindications on the standard site radiography screening questionnaire (e.g. history of surgery involving metal implants)
11. Clinically relevant structural brain abnormality as determined by prior MRI scan
12. Planned medical treatment within the study period that might interfere with the study procedures
13. Participants deemed to be at significant risk of serious violence or suicide
14. BMI of 16.5 or lower
15. Participation in other clinical trials or observation period of competing trials, respectively
16. Previous participation in this trial
17. Pregnancy and lactation
18. Held in an institution by legal or official order
19. Legally incapacitated.

Primary outcomes:
measure: Affect Intensity, change from T0 to T1
timeFrame: Completion of T0 EMA sampling within 12 days before first NF session. Start of T1 EMA sampling within 1 week after last NF session.
Secondary outcomes:
measure: Affect Intensity, change from T0 to T2
timeFrame: Completion of T0 EMA sampling within 12 days before first NF session. Start of T2 EMA sampling within 14-16 weeks after last NF session.
measure: Borderline Symptom Severity, change from T0 to T1 and T0 to T2
timeFrame: T0 assessed before first NF session (within 1-3 weeks). T1 assessed after last NF session (within 2-4 weeks). T2 assessed within 14-16 weeks after last NF session.
measure: Amygdala response, change from T0 to T1.
timeFrame: Time Frame: T0 assessed at Baseline. T1 assessed at Post-Assessment immediately after treatment.
measure: Amygdala self-regulation, change from T0 to T1.
timeFrame: Time Frame: T0 assessed at Baseline. T1 assessed at Post-Assessment immediately after treatment.
measure: Improvement in quality-adjusted life years (QALY), change from T0 to T3
timeFrame: T0 assessed before first nf session (within 1-3 weeks). T3 assessed 6 months after last NF session.
Other outcomes:
Locations:
city: Freiburg
country: Germany
facility: University clinic Freiburg
city: Gießen
country: Germany
facility: University clinic Giessen
city: Mannheim
country: Germany
facility: Central Institute of Mental Health
city: Tuebingen
country: Germany
facility: University Clinic Tuebingen
Study officials:
affiliation: ZI Mannheim
name: Christian Paret, Dr.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Zaehringer J, Ende G, Santangelo P, Kleindienst N, Ruf M, Bertsch K, Bohus M, Schmahl C, Paret C. Improved emotion regulation after neurofeedback: A single-arm trial in patients with borderline personality disorder. Neuroimage Clin. 2019;24:102032. doi: 10.1016/j.nicl.2019.102032. Epub 2019 Oct 16.
citation: Paret C, Kluetsch R, Zaehringer J, Ruf M, Demirakca T, Bohus M, Ende G, Schmahl C. Alterations of amygdala-prefrontal connectivity with real-time fMRI neurofeedback in BPD patients. Soc Cogn Affect Neurosci. 2016 Jun;11(6):952-60. doi: 10.1093/scan/nsw016. Epub 2016 Feb 1.
citation: Paret C, Kluetsch R, Ruf M, Demirakca T, Hoesterey S, Ende G, Schmahl C. Down-regulation of amygdala activation with real-time fMRI neurofeedback in a healthy female sample. Front Behav Neurosci. 2014 Sep 18;8:299. doi: 10.3389/fnbeh.2014.00299. eCollection 2014.