Claims against different parties can be severed for trial or other proceedings under Federal Rules of Civil Procedure 20(b), 21, and 42(b). In re Vitamins Antitrust Litig., 2000 U.S. Dist. LEXIS 7397, at * 74 (D.D.C. 2000) (Hogan, J.). Specifically, Federal Rule of Civil Procedure 21 governs the misjoinder of claims. Brereton v. Communications Satellite Corp., 116 F.R.D. 162 (D.D.C. 1987) (Richey, J.) (holding that an appropriate remedy for misjoinder is severance of claims brought by the improperly joined party). Rule 21 provides, in relevant part: Misjoinder of parties is not ground for dismissal of an action. Parties may be dropped or added by order of the court on motion of any party or of its own initiative at any stage of the action and on such terms as are just. Any claim against a party may be severed and proceeded with separately. FED. R. Civ. P. 21.
In determining whether the parties are misjoined, the joinder standard of Federal Rule of Civil Procedure 20(a) applies. Rule 20(a) provides, in relevant part: 'All persons may join in one action as plaintiffs if they assert any right to relief jointly, severally, or in the alternative in respect ...