Overview
- 98 inspections across 78 sites are on record.
- 451 Form 483 observations are attributed to this investigator.
- Most recent recorded activity is 2026-06-22.
At a glance
Inspections
98
Sites
78
Observations
451
Career since
Jul 2016
Recent inspections
Most recent inspections in the published record.
| Site | Date | Category | Form 483 |
|---|---|---|---|
| Brigham and Women's Hospital, Inc., The | 22 Jun 2026 | Human Drugs | View 483 → |
| Element Materials Technology Boston - Acton Inc. | 4 May 2026 | Human Drugs | View 483 → |
| Genzyme Corporation | 9 Apr 2026 | Human Drugs | On file |
| Lonza Biologics, Inc. | 6 Feb 2026 | Human Drugs | On file |
| Shire Human Genetic Therapies, Inc. | 18 Dec 2025 | Human Drugs | On file |
Sites inspected
Brigham and Women's Hospital, Inc., TheBoston, United States1 insp.
Element Materials Technology Boston - Acton Inc.Acton, United States1 insp.
Genzyme CorporationFramingham, United States1 insp.
Lonza Biologics, Inc.Portsmouth, United States1 insp.
Shire Human Genetic Therapies, Inc.Lexington, United States1 insp.
Co-investigators
Investigators who share inspections with this person.
Lori M Newman12 shared
Erik W Koester9 shared
John P Mistler8 shared
Armen H Youssoufian5 shared
Daniel L Zheng5 shared
Leanna M Slarsky4 shared
Jonathan G Matrisciano4 shared
Robert J Martin3 shared
Ogechi C Nna2 shared
Karen A Briggs2 shared
Full investigator report
Get the verbatim findings behind Sean R Marcsisin's 451 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