It depends on the fabric. I dripped superglue onto a cotton covered armchair. Acetone got it out, but it took me several treatments to get it all out.Acetone (nail polish remover) works to shift it on non-porous surfaces, but I'm not sure what it will do to your strides.
See Drago's earlier reply.Warning!!!
If using the freezer method, make sure you're not still wearing the trousers.
HTH