Long-term Safety and Efficacy Evaluation of Lunsekimig in Adult Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP) Who Completed a Previous Lunsekimig CRSwNP Study

Inclusion Criteria:

• Participants who have completed the treatment period and the follow up period inCRSwNP lunsekimig parent study, including EOS visit, as per protocol.

• Participants receiving therapy with intranasal mometasone furoate nasal spray (MFNS).

• Participants who are able and willing to participate in this extension study, and tocomply with requested study visits and procedures.

Exclusion Criteria:

Participants are excluded from the study if any of the following criteria apply:

• Prior hypersensitivity reaction to lunsekimig or to any of the excipients used inthe presentation or in preparation for administration of lunsekimig, or otherallergy that, in the opinion of the Investigator, contraindicates participation inthe study.

• Concurrent participation in any clinical study other than the parent study,including non-interventional studies.

• Participants who, during their participation in the parent study, developed anadverse event (AE) or a serious adverse event (SAE) deemed related to lunsekimig,which in the opinion of the Investigator could indicate that continued treatmentwith lunsekimig may present an unreasonable risk for the participant NOTE: The aboveinformation is not intended to contain all considerations relevant to a patient'spotential participation in a clinical trial