Overview
- 125 inspections across 110 sites are on record.
- 186 Form 483 observations are attributed to this investigator.
- Most recent recorded activity is 2026-05-21.
At a glance
Inspections
125
Sites
110
Observations
186
Career since
May 2013
Recent inspections
Most recent inspections in the published record.
| Site | Date | Category | Form 483 |
|---|---|---|---|
| Sandro Bacchelli, MD | 21 May 2026 | Human Drugs | |
| IQVIA | 2 Apr 2026 | Human Drugs | |
| Dr. Astrid Breitschaft | 27 Mar 2026 | Human Drugs | |
| Juan Garza | 9 Jan 2026 | Human Drugs | |
| Polaris Pharmaceuticals Inc | 7 Nov 2025 | Human Drugs |
Sites inspected
Sandro Bacchelli, MDWeston, United States1 insp.
IQVIAReading, United Kingdom1 insp.
Dr. Astrid BreitschaftBerlin, Germany1 insp.
Juan GarzaSan Antonio, United States1 insp.
Polaris Pharmaceuticals IncSan Diego, United States1 insp.
Co-investigators
Investigators who share inspections with this person.
Marc A Jackson6 shared
Marion W Nadeau5 shared
Theressa B Smith4 shared
Teena H Aiken4 shared
Kelly D Moore4 shared
Vickie J Kanion3 shared
Matthew A Johnson3 shared
Stephanie Barragan2 shared
Dawn C Olenjack2 shared
Jonathan R Campos2 shared
Full investigator report
Get the verbatim findings behind Stephen T Hansen's 186 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