| Study | Reason for exclusion |
|---|---|
| Fosphenytoin phase 3 | No outcome data available. |
| Galeas 1999 | No information on randomisation method or placebo group. Non‐standard outcome measures. Time of treatment initiation and outcome assessment not known. |
| Giroux 1994 | No outcome data available. |
| Lampl 2001 | No dichotomous outcome data available. |
| Lub‐Int 2 & Lub‐Bel 4 | Single‐blind methodology. |
| Sipatrigine CEE 05 | No outcome data available. Trial terminated for commercial reasons. |
| ZK‐200775 | No outcome data available. |