Table 2 Mean change from baseline in MGC, MG-ADL and QMG scores at month 3

From: BCMA-directed mRNA CAR T cell therapy for myasthenia gravis: a randomized, double-blind, placebo-controlled phase 2b trial

MG Clinical Outcomes

Descartes-08 (n = 15)

Placebo (n = 11)

MGC score

Baseline, mean (s.d.)

16.4 (6.39)

15.7 (3.95)

Month 3, mean (s.d.)

11.4 (8.57)

13.5 (8.48)

Change from baseline at month 3, mean (s.d.)

−5.0 (6.67)

−2.3 (7.73)

Responder (≥5-point reduction), n (%)

10 (66.7)

3 (27.3)

Difference in proportions (95% CI)

0.39 (0.01–0.77)

P value

0.0472

MG-ADL score

Baseline, mean (s.d.)

10.5 (3.20)

9.8 (2.79)

Month 3, mean (s.d.)

6.4 (4.31)

8.2 (3.82)

Change from baseline at month 3, mean (s.d.)

−4.1 (3.38)

−1.6 (4.06)

QMG score

Baseline, mean (s.d.)

17.3 (7.3)

14.7 (4.03)

Month 3, mean (s.d.)

13.4 (7.53)

13.2 (5.12)

Change from baseline at month 3, mean (s.d.)

−3.9 (4.37)

−1.5 (4.27)

  1. Statistical significance was determined using a two-sided two-independent-sample proportion test. CI, confidence interval.