# Eiger BioPharmaceuticals

Eiger BioPharmaceuticals is an other based in Palo Alto, United States.

## Overview

- **Organization type:** other
- **Headquarters:** Palo Alto, United States
- **Region:** North America
- **Address:** Palo Alto, CA, United States
- **Assets under management:** Undisclosed
- **Website:** ir.eigerbio.com

## Regulatory record

- **Reports private funds:** No

## About

Eiger BioPharmaceuticals is a biopharmaceutical company based in San Carlos, United States, founded in 2008. It develops a diverse portfolio of well-characterized drugs for rare diseases. The company has secured $22.8 million in total funding.

## Sectors

- Biotech
- Pharmaceuticals

## Questions

### What caused Eiger BioPharmaceuticals to cease operations?

Eiger ran out of operating capital after its lead drug candidate failed in Phase 3 trials for hepatitis delta. The company was unable to find a buyer or raise additional financing, leading to a board decision in April 2024 to lay off staff and wind down operations (per the company's SEC filing, 2024).

### Did Eiger ever have any approved drugs?

Eiger never obtained FDA approval for any of its pipeline candidates. Its most advanced program — a treatment for chronic hepatitis delta — failed in a pivotal Phase 3 trial in 2023, and other assets were in earlier stages (per the company's public press releases and clinical trial registry records).

### What drugs were in Eiger's pipeline?

Eiger's pipeline included lonafarnib (for hepatitis delta, failed Phase 3), peginterferon lambda (for hepatitis delta, phase 2), and several preclinical assets including an inhaled version of the antiviral favipiravir (public record). None advanced beyond phase 2 except lonafarnib.

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- [Celladon Corporation](https://altss.com/profile/celladon-corporation)
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Last updated: 2026-06-03T20:00:00.000Z

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