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New Avacopan Analysis Sent to FDA After Data Manipulation Allegations

Published

25 July 2026

Topic

opportunities

Sectors

Digital Health

Geography

United States

Source

Read at medpagetoday.com

Verified

Fusion42 · 25 July 2026 · Fusion42 review

Amgen has submitted independent data re-analysis to the FDA in an attempt to prevent revocation of avacopan (Tavneos), a vasculitis drug whose pivotal trial data was found to have been manipulated by its original developer ChemoCentryx. The reanalysis shows noninferiority but no longer demonstrates superiority at 52 weeks, and the drug faces additional scrutiny over fatal liver injury cases.

This Wire brief sits within Fusion42's coverage of Digital Health. Wire is Fusion42's founder-focused intelligence feed: each story is connected to the funds and startups it names — every one with a live profile on Raise or Scout — so founders can follow the capital and the momentum behind the headline rather than just the headline itself. Wire analysis is one of the live surfaces Arthur reasons over.

◆ The Wire takeaway

If you're building a rare-disease drug and your pivotal trial data gets audited, independent re-analysis is now the minimum bar to stay on the market—and even then, it may only prove noninferiority, not the superiority your approval rested on. Amgen's fight suggests the FDA will pull approvals based on data manipulation, not just safety.

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Topics

Digital Healthfda-approval-risktrial-data-integritydrug-safetyregulatory-revocationrare-disease