Mindfulness Based Stress Reduction improves quality of life and pain catastrophising in fibromyalgia patients.

This systematic review and meta-analysis investigated the efficacy of Mindfulness Based Stress Reduction (MBSR) for people living with fibromyalgia. The analysis pooled data from 1153 participants, comprising 1097 women. The setting of the included studies was not reported. The intervention consisted of MBSR, while comparators included no treatment, usual care, or any active control. The review assessed outcomes at both short-term and long-term follow-up intervals. The certainty of the outcomes was graded as ranging from very low to moderate.

Regarding the primary outcome of quality of life, the meta-analysis found significant improvements in favour of MBSR compared with active controls at long-term follow-up. The standardized mean difference (SMD) was -0.2635, with a 95% confidence interval of -0.4725 to -0.0545. For pain catastrophising, another primary outcome, MBSR also demonstrated significant improvements over active controls at long-term follow-up. The SMD was -0.5375, with a 95% confidence interval of -0.8323 to -0.2428.

In contrast, results for pain severity and depression were less robust when compared against active controls. Significant effects for pain severity were observed only at short-term follow-up versus passive control, with an SMD of -0.2966 and a 95% CI of -0.4939 to -0.0992. Similarly, depression showed significant effects only at short-term follow-up versus passive control, with an SMD of -0.4452 and a 95% CI of -0.6502 to -0.2402. Against active controls, neither pain severity nor depression were significantly alleviated by MBSR.

Safety and tolerability data were not reported in the included studies. Consequently, adverse events, serious adverse events, discontinuations, and general tolerability profiles could not be assessed. The study design and specific dosing protocols for the MBSR intervention were not detailed in the provided data.

When compared to prior landmark studies in fibromyalgia management, this analysis suggests that MBSR may offer distinct benefits for psychological and functional domains rather than direct analgesic effects when matched against active controls. This aligns with the broader understanding that mindfulness interventions often target coping mechanisms and quality of life rather than solely reducing nociceptive pain signals.

Key methodological limitations include the low to moderate certainty of the outcomes, as determined by GRADE. The review could not fully assess potential biases due to the lack of reported study settings and specific intervention protocols. Additionally, the absence of safety data limits the ability to counsel patients on potential risks.

The clinical implications are that MBSR may be a reasonable option to improve quality of life and reduce pain catastrophising in fibromyalgia, particularly when active controls are not available or when the goal is functional improvement. However, clinicians should not expect MBSR to significantly reduce pain severity or depression compared to active interventions based on this evidence. Further research is needed to clarify the long-term efficacy against active controls and to establish safety profiles.

Several questions remain unanswered. The specific mechanisms by which MBSR improves quality of life without significantly altering pain severity in active control groups require further investigation. The optimal duration and frequency of MBSR sessions for fibromyalgia patients also need clarification. Finally, the lack of safety data necessitates caution when recommending this intervention to patients with complex comorbidities.