Disputes in the life sciences and health care sector frequently arise from complex, multi-party relationships such as supply chains, licensing, R&D collaborations, and subcontracting arrangements. In these constellations, parties not directly involved in the initial dispute often have a significant interest in the outcome (e.g., to avoid redress claims).

Arbitration frameworks typically struggle to accommodate involvement of third parties, which can lead to fragmented dispute resolution, inconsistent outcomes, and inefficiencies. Traditional joinder mechanisms in arbitration rules generally require the consent of all parties. In practice, obtaining consent is often difficult, especially after a dispute has arisen. This challenge is compounded by the fact that the joining of a third party typically grants them full party status, including the right to bring counterclaims.

The newly introduced Supplementary Rules for Third-Party Notices of the German Arbitration Institute (DIS-TPNR) offer a more nuanced approach to involvement of third parties. For life sciences companies, this approach may provide greater legal certainty and efficiency, particularly in scenarios where third-party involvement is foreseeable from the outset.

The Rules of the German Arbitration Institute (DIS-Rules) and the DIS-TPNR Rules can be agreed independently of a German seat or German law. Inspired by long-standing provisions in the German Code of Civil Procedure, these rules allow a third party to be contractually bound by the outcome of an initial arbitration in a subsequent dispute, without becoming a full party to the initial proceedings. The third party, as an "Intervener" may support the party issuing the notice but cannot assert or be subject to counter-claims in the initial arbitration. This approach reduces procedural risks and makes it easier for all parties to agree to the third-party involvement. It also achieves two key objectives: a) preventing re-litigation of the same issues in different proceedings, and b) avoiding contradictory decisions.