diff --git a/src/views/trials/trials-list/components/TrialForm.vue b/src/views/trials/trials-list/components/TrialForm.vue
index 74e6a3c..c919f07 100644
--- a/src/views/trials/trials-list/components/TrialForm.vue
+++ b/src/views/trials/trials-list/components/TrialForm.vue
@@ -316,8 +316,8 @@ export default {
             trigger: "blur",
           },
           {
-            max: 100,
-            message: `${this.$t("common:ruleMessage:maxLength")} 100`,
+            max: 500,
+            message: `${this.$t("common:ruleMessage:maxLength")} 500`,
           },
         ],
         ModalityIds: [