Deal or Case news
09.10.2026
NautaDutilh advised RIGImmune and its shareholders on the acquisition by Leyden Labs.

RIGImmune is a biopharmaceutical company developing a new class of immune-modulating therapies for viral diseases and cancer. The acquisition, completed earlier this year, adds RIGImmune’s RIG-101 programme and proprietary NEED™ intranasal delivery platform to Leyden Labs’ growing portfolio of airway-targeted medicines. It complements Leyden Labs’ intranasal antibody programmes and supports its efforts to protect vulnerable patients against the consequences of respiratory viral infections.

The acquisition was announced alongside positive Phase 1 results for RIG-101, an investigational intranasal therapy initially being studied to prevent virus-triggered asthma exacerbations. Leyden Labs reported that RIG-101 was safe and well tolerated in healthy volunteers and patients with asthma, with results supporting advancement into Phase 2 clinical development.

“RIGImmune has developed an innovative platform with the potential to broaden the way respiratory viral diseases are addressed. It was a privilege to assist the company and its shareholders on a transaction that positions this technology for its next stage of development.”
Rebecca Runa Pinto - Noome

The NautaDutilh team was led by Rebecca Pinto and further consisted of Ruud Smits, Annefleur van Oel, Auke Knigge, Sophie van Lanschot, Elodie Smits, Nico Blom, Ash Beesemer and Riemer Meinderts.

Related articles

Cookie notification

This functionality uses third-party cookies. Change your cookie preferences to view this content or view more information.
These cookies ensure that the website works properly. These cookies cannot be disabled.
These cookies can be placed by third parties, such as YouTube or Vimeo.
By deactivating categories, it is possible that related functionalities within the website may no longer work properly. It is always possible to change your preferences at a later time. View more information.