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Table 4 Adverse and serious adverse events up to 6 months of observation

From: Swiss QUality of life and healthcare impact Assessment in a Real-world Erenumab treated migraine population (SQUARE study): interim results

Most reported adverse events (AEs) n (%)

N = 99

Constipation

21 (21.2)

Insufficient effect

6 (6.1)

Lack of efficacy

6 (6.1)

Diarrhea

5 (5.1)

Injection site reaction

2 (2.0)

Serious adverse events (SAEs) n (%)

12 (12.1)

 Anaphylactic shocka

1 (1.0)

 Chest pain and arm pain left side

1 (1.0)

 COVID-19

1 (1.0)

 Inpatient headache therapy

2 (2.0)

 Kidney stone

1 (1.0)

 Medication overuse headache needing withdrawal in hospital setting

1 (1.0)

 Meningioma

1 (1.0)

 Mycoplasma pneumonia

1 (1.0)

 Right motor and sensory syndrome and migraine

1 (1.0)

 Transitory ischemic attack

1 (1.0)

 Urinary tract infection

1 (1.0)

  1. aFour months after erenumab discontinuation, hence no causal relationship assumed
  2. Abbreviations: AE Adverse event, SAE Serious adverse event