Table 2 Severity and NNH estimates of procholinergic and anticholinergic AEs (reported by ≥2% of patients in the KarXT group and at >2-fold higher incidence than in the placebo group).

From: Safety and tolerability of KarXT (xanomeline–trospium) in a phase 2, randomized, double-blind, placebo-controlled study in patients with schizophrenia

n/N (%)

KarXT (n = 89)

Placebo (n = 90)

NNH (95% CI)

Mild

Moderate

Severe

Mild

Moderate

Severe

Procholinergic AEs

       

 Nausea

13/15 (86.7)

2/15 (13.3)

0/15 (0)

3/4 (75.0)

1/4 (25.0)

0/4 (0)

9 (5, 29)

 Vomiting

5/8 (62.5)

3/8 (37.5)

0/8 (0)

3/4 (75.0)

1/4 (25.0)

0/4 (0)

23 (9, −36)

Anticholinergic AEs

 Constipation

12/16 (75.0)

4/16 (25.0)

0/16 (0)

2/3 (66.7)

1/3 (33.3)

0/3 (0)

8 (5, 21)

 Dry mouth

6/8 (75.0)

2/8 (25.0)

0/8 (0)

1/1 (100)

0/1 (0)

0/1 (0)

13 (8, 65)

  1. AE adverse event, CI confidence interval, NNH number needed to harm.