Clinical Report: ADHD Treatment Response in Adult Women with ASD and Suicidality

Overview

This case study reports on three young adult females with autism spectrum disorder (ASD) and comorbid attention deficit hyperactivity disorder (ADHD) who presented with treatment-resistant suicidality. Introduction of ADHD medications led to rapid improvements in mood, suicidality, and coping skills, enabling reduction of antidepressant and antipsychotic use.

Background

Females with ASD frequently experience higher rates of suicidality, suicide attempts, and non-suicidal self-injury, particularly in late adolescence and young adulthood. ADHD commonly co-occurs with ASD but often remains undiagnosed and untreated, especially in females who may mask symptoms. Executive function deficits and impulsivity associated with untreated ADHD contribute to increased suicide risk. Recognition and treatment of ADHD in this population may improve outcomes by enhancing impulse control and coping mechanisms.

Data Highlights

Three adult females meeting DSM criteria for both ASD and ADHD were treated with ADHD medications after failing to respond to antidepressants and antipsychotics. All showed marked clinical improvement with decreased emergency department visits and suicidality. Clinical Global Impressions-Improvement subscale ratings indicated 'Much Improved' status post-ADHD treatment.

Key Findings

• ADHD is frequently comorbid with ASD in females but often remains undiagnosed and untreated.
• Untreated ADHD in females with ASD is associated with increased suicidality and impulsivity.
• Introduction of ADHD medications in three adult females with ASD and suicidality led to rapid mood stabilization and reduced suicidal behaviors.
• ADHD treatment enabled tapering of antidepressants and antipsychotics previously ineffective in managing suicidality.
• Executive function improvements from ADHD treatment enhanced coping skills and impulse control.
• Side effects from ADHD medications were notable in one case, underscoring the need for careful monitoring.

Clinical Implications

Clinicians should consider screening for ADHD in females with ASD presenting with suicidality, especially when standard treatments fail. Early diagnosis and targeted ADHD treatment may rapidly reduce suicidal behaviors by improving executive functions and impulse control. Careful monitoring for medication side effects is essential to optimize treatment outcomes.

Conclusion

ADHD diagnosis and treatment in adult females with ASD and suicidality can lead to significant clinical improvement, reducing suicidality and enhancing coping skills. Larger studies are warranted to confirm these findings and guide clinical practice.

References

1. CDC 2025 -- Autism Spectrum Disorder Prevalence
2. DSM-5-TR 2022 -- Diagnostic Criteria for ASD and ADHD
3. Adult ADHD Self-Report Rating Scale (ASRS) -- Kessler et al.
4. Clinical Global Impressions Scale -- Guy 1976