FDA 483 OBSERVATION · #325 OF 1,932 MOST-CITED

General responsibilities of sponsors

FDA cited this observation 88 times across 81 firms in recent inspections. Below: how it breaks down by program area and fiscal year, and real examples of how FDA worded it on Form FDA 483.

What this grouping is not

An observation-type page groups FDA’s published citation records. The grouping, the compliance steps and the root causes are SPEQ synthesis, not an FDA classification of any citation, and a count measures what FDA published rather than risk.

BY PROGRAM AREA
Bioresearch Monitoring88
BY FISCAL YEAR
FY202610
FY20256
FY202410
FY20239
FY20222
FY20213
FY20203
FY201914
FY20189
FY201711
FY201611

What this observation is associated with

Firms cited for this observation also appear in FDA compliance actions — warning letters, injunctions, or seizures — at 1.7× the rate of the average FDA-cited firm (13.6% vs 7.8%), across 81 FEI-matched firms.

This is an association, not causation, and reflects co-occurrence in FDA's records — not a claim that the observation caused or preceded the action.

CHECKING ACCESS

Checking your access…

How FDA worded it — real examples

Failure to ensure proper monitoring of the study and ensure the study is conducted in accordance with the protocol and/or investigational plan.

Inhibrx Biosciences Inc. · La Jolla, California · Bioresearch Monitoring · 2026-07-02

Failure to ensure proper monitoring of the study and ensure the study is conducted in accordance with the protocol and/or investigational plan.

Biofrontera Discovery GmbH · Leverkusen · Bioresearch Monitoring · 2026-05-07

Failure to ensure proper monitoring of the study and ensure the study is conducted in accordance with the protocol and/or investigational plan.

Exelixis, Inc. · Alameda, California · Bioresearch Monitoring · 2026-05-05

Failure to ensure proper monitoring of the study.

Avotres Inc. · Cedar Knolls, New Jersey · Bioresearch Monitoring · 2026-04-24

Failure to provide investigators with the information needed to conduct the study properly and ensure proper monitoring of the study.

Protagonist Therapeutics Inc · Newark, California · Bioresearch Monitoring · 2026-04-03

Failure to ensure the study is conducted in accordance with the protocol and/or investigational plan.

Abbisko Therapeutics Co., Ltd. · Pudong New Area · Bioresearch Monitoring · 2026-03-20

Related SPEQ references

Where to read the requirements behind this observation area on SPEQ. These are SPEQ's topic and audience pages — not an FDA classification of the citation.

GCP discipline →

Examples are a representative sample of FDA's published inspection observations. Open the 483 observation explorer →