FDA Investigator

Patric C Klotzbuecher

Latest inspection on record: Clarence, United States, March 2020 · records back to 2008

Human Drugs

FDA inspection record · Last updated July 12, 2026

Overview

  • 128 inspections across 123 sites are on record.
  • 206 Form 483 observations are attributed to this investigator.
  • Most recent recorded activity is 2020-03-12.

At a glance

Inspections

128

Sites

123

Observations

206

Career since

Mar 2008

Recent inspections

Most recent inspections in the published record.

SiteDateCategoryForm 483
Athenex Pharma Solutions, LLC12 Mar 2020Human Drugs
Ohm Laboratories Inc.5 Feb 2020Human DrugsView 483 →
Strive Pharmaceuticals, Inc.6 Dec 2019Human Drugs
Regeneron Pharmaceuticals, Inc.18 Oct 2019Human DrugsView 483 →
Takeda Pharmaceutical Company Limited9 Aug 2019Human DrugsView 483 →

Sites inspected

Athenex Pharma Solutions, LLCClarence, United States1 insp.
Ohm Laboratories Inc.New Brunswick, United States1 insp.
Strive Pharmaceuticals, Inc.East Brunswick, United States1 insp.
Regeneron Pharmaceuticals, Inc.Rensselaer, United States1 insp.
Takeda Pharmaceutical Company LimitedYodogawa-Ku, Japan1 insp.

Co-investigators

Investigators who share inspections with this person.

Junho Pak4 shared
Linda L Ng3 shared
Gam S Zamil2 shared
Daniel J Roberts2 shared

Full investigator report

Get the verbatim findings behind Patric C Klotzbuecher's 206 observations

Source 483 PDFs, verbatim observations, and how each site responded, so your team knows what they cite before they arrive.

  • New inspections and Form 483s, mapped to the CFR citation
  • Warning letter outcomes, and the citation patterns they repeat
  • Their co-investigators, so no surprises about who shows up on site