Amphastar Pharmaceuticals

For profit

Also known as: AMPHASTAR PHARM | A:mphastar Pharmaceuticals, Inc. | Amphastar Pharmaceuticals, Inc. | Amphastar Pharmeceuticals, Inc. | AMPHASTAR PHARMS INC

Phase 1 Phase 2 Phase 3 Phase 4

Highest phase reached

Phase 4

First clinical trial

Sep 1, 2007

First marketed drug

Jan 1, 1996

Last known activity

Dec 12, 2025

Timeline

1990s

Jan 1, 1996
Amphastar Pharmaceuticals— Founded

2000s

May 23, 2003
lidocaine— NDA Secondary Org

2010s

Aug 4, 2016
International medicated systems ltd.— Acquired

2020s

Dec 12, 2025
teriparatide— Marketing Organization

Drugs by trial phase (6 distinct, 20 trials)

Phase 4 (2 own, 0 via acquisition)

Phase 3 (1 own, 0 via acquisition)

insulin aspart

Phase 2 (3 own, 0 via acquisition)

Indications

Studied for

Marketed drugs (16)

Subsidiaries (1 direct, 1 total across the full acquisition tree)

International medicated systems ltd.

Recent trials (34)

NCT05539872Lead sponsorPhase 2/Phase 3Aug 22, 2022
NCT04207840Lead sponsorPhase 4Dec 9, 2019
NCT02271334Lead sponsorPhase 2Aug 1, 2014
NCT02271334Study directorPhase 2Aug 1, 2014
NCT02210806Study directorPhase 2Jul 1, 2014
NCT02210806Lead sponsorPhase 2Jul 1, 2014
NCT01737892Lead sponsorPhase 1/Phase 2Nov 1, 2012
NCT01737892Study directorPhase 1/Phase 2Nov 1, 2012
NCT01737905Lead sponsorPhase 3Oct 1, 2012
NCT01737905Study directorPhase 3Oct 1, 2012
NCT01689363Lead sponsorPhase 2Sep 1, 2012
NCT01689363Study chairPhase 2Sep 1, 2012
NCT01581177Lead sponsorPhase 2Apr 1, 2012
NCT01581177Study directorPhase 2Apr 1, 2012
NCT01476904Study directorPhase 3Nov 1, 2011

Details

Founded: Rancho Cucamonga, CA, US Jan 1, 1996
Last known activity: Dec 12, 2025