---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-016143"
form_type: "8-K"
ticker: "LNTH"
cik: "0001521036"
company_name: "Lantheus Holdings, Inc."
filed_at: "2024-01-26T23:59:59+00:00"
generated_at: "2026-06-06T16:32:10.018021+00:00"
event_type: "litigation"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Lantheus confirms patent infringement lawsuit by Novartis over generic Lutetium Lu 177 Dotatate ANDA

## Summary
- Lawsuit filed by Advanced Accelerator Applications (Novartis entities) in U.S. District Court for Delaware against Lantheus and its subsidiary.
- Suit stems from Lantheus's ANDA No. 217060 for generic version of LUTATHERA (lutetium Lu 177 dotatate) for GEP-NETs.
- Lantheus believes it is the 'first applicant' and eligible for 180 days of generic marketing exclusivity in the U.S.
- No financial impact or settlement terms disclosed in this filing.

## SEC filing metadata
- accession: 0001193125-24-016143
- form_type: 8-K
- ticker: LNTH
- cik: 0001521036
- company_name: Lantheus Holdings, Inc.
- filed_at: 2024-01-26T23:59:59+00:00
- event_type: litigation
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1521036/000119312524016143/0001193125-24-016143-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1521036/000119312524016143/d740568d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-016143
- JSON: https://secwatch.observer/filing/0001193125-24-016143.json
- Plain text: https://secwatch.observer/filing/0001193125-24-016143.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.