Psychological interventions are effective in treating obsessive-compulsive disorder (OCD) and significantly improve patients’ quality of life. Clinical psychologist Yingying Wang demonstrates through large-scale meta-analyses that several psychological treatments achieve comparable results.
The key challenge for the future lies in better tailoring treatments to individual patients and improving access to evidence-based care.
What do we know about treating OCD?
OCD is a mental health condition characterised by intrusive thoughts and repetitive behaviours. In her dissertation Wang investigated how well psychological treatments work and which interventions are most beneficial for different groups of patients. Her findings are clear: psychological interventions reduce the severity of OCD symptoms, often alleviate comorbid anxiety and depression, and enhance overall quality of life. Importantly, many different psychological approaches appear to be similarly effective and acceptable to patients.
Cognitive behavioural therapy remains the gold standard
Cognitive behavioural therapy (CBT) continues to be the most widely studied and commonly used treatment for OCD. Wang shows that CBT is effective in various formats, with most forms producing comparable outcomes in terms of symptom reduction and patient acceptability. One notable exception is unguided self-help CBT, which proves less effective and less acceptable than other formats.
Nevertheless, unguided self-help interventions still lead to moderate reductions in OCD symptom severity. This highlights their potential value for individuals who face barriers to accessing care, such as long waiting lists, financial constraints, geographical distance, or stigma.
More choice for patients, more precision for professionals
For people living with OCD, the findings offer an encouraging message: there is a broad range of effective psychological treatments available, allowing room for personal preference and circumstances. For mental health professionals, the research underscores the importance of personalised treatment, tailored to patients’ clinical profiles, needs and preferences. Wang emphasises the need for systematically collected patient-level data, which would make it possible to better match individuals to the treatments most likely to benefit them.