Biologics Manufacturer Warning Letters

FDA warnings to the biologics industry

Biologics Manufacturer Warning Letters

Biological products—such as vaccines, blood and blood components, gene therapies, and cellular therapies—are some of the most complex and sensitive therapies regulated by the FDA. To protect public health, the FDA issues Warning Letters when biologics manufacturers violate regulatory requirements, such as current Good Manufacturing Practices (cGMP), improper labeling, unapproved marketing claims, or failure to ensure product sterility and safety.

This page features the most recent FDA Warning Letters issued to biologics manufacturers. These letters serve as critical enforcement tools and offer valuable insights into common compliance pitfalls across the biologics industry. Whether you’re a regulatory professional, quality manager, or simply concerned with public safety, these letters highlight where and how companies fall short—and what steps must be taken to correct deficiencies and regain compliance.

Stay informed. Learn from real-world examples. And use these insights to strengthen your own quality and regulatory practices.

The following warning letters were issued by FDA’s Center for Biologics Evaluation and Research (CBER).

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Biologics Warning Letters

Posted Date

Letter Issue Date

Company Name

Subject

07/22/2025

07/07/2025

O3UV, LLC

Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA) Adulterated Device

07/01/2025

06/13/2025

InVia Fertility Specialists, PLLC

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

06/03/2025

03/25/2025

Amy Lightner, MD

Bioresearch Monitoring Program

05/20/2025

05/05/2025

Supreme Rejuvenation, LLC

Unapproved New Drugs/Misbranded

05/20/2025

12/16/2024

Skye Biologics Holdings LLC

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

03/18/2025

03/10/2025

MG Infusions

CGMP/Deviations/Biologics License Application (BLA)

02/25/2025

02/14/2025

Sperm Bank, Inc. dba Fertility Center of California

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

02/04/2025

01/17/2025

BioStem Life Sciences

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

01/28/2025

12/30/2024

Evolutionary Biologics Inc.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

01/28/2025

01/17/2025

Chara Biologics, Inc.

CGMP/Deviations/Biologics License Application (BLA)

01/21/2025

12/12/2024

INCELL Corporation LLC

CGMP/Finished Pharmaceuticals/Unapproved New Drug/Misbranded/Adulterated

01/07/2025

12/12/2024

XO Biologix, LLC

Unapproved New Drugs/Adulterated

11/19/2024

11/01/2024

Frontier Biologics, LLC

Unapproved New Drug/Unlicensed Biological Product Violations

10/22/2024

10/11/2024

Blackfly Investments, LLC dba Molecular® Testing Labs

Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA)

10/22/2024

10/01/2024

Pinnacle Transplant Technologies, LLC

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

10/22/2024

10/01/2024

Amnio Technology, LLC

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

10/22/2024

10/10/2024

Namita A. Goyal, M.D.

Clinical Investigator

10/15/2024

10/08/2024

Hemarus LLC

CGMP/Blood & Blood Components/Adulterated

09/06/2024

08/16/2024

Regenerative Processing Plant, LLC

CGMP/Finished Pharmaceuticals/Adulterated

09/03/2024

08/20/2024

Mother Stem Institute, Corp.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

08/27/2024

06/28/2024

Berkeley Biologics, LLC, previously operating as Elutia, Inc. – Orthobiologics Business Unit, formerly Aziyo Biologics, Inc.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

08/27/2024

07/26/2024

CARsgen Therapeutics Corporation

CGMP/Finished Pharmaceuticals/Adulterated

08/13/2024

05/29/2024

Konrad Rejdak, M.D., Ph.D.

Bioresearch Monitoring Program/IRB  

07/16/2024

06/21/2024

Massachusetts Institute of Technology MIT

Bioresearch Monitoring Program/IRB

03/12/2024

02/09/2024

Human Microbes

CGMP/Deviations/Biologics License Application (BLA)

02/13/2024

01/31/2024

Barkey GmbH & Co. KG

Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA)

01/09/2024

12/20/2023

MiMedx Group, Inc.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

10/25/2023

10/24/2023

Abbott Laboratories

Dietary Supplement/Adulterated

09/29/2023

09/28/2023

Infinant Health, Inc formerly Evolve Biosystems Inc.

Unapproved New Drugs/Misbranded

08/09/2022

08/03/2022

Valley Biosystems

Bioresearch Monitoring Program

02/22/2022

02/10/2022

Toxikon Corporation/Labcorp Bedford LLC

Good Laboratory Practice (GLP)

07/06/2021

06/25/2021

Davati Medical Supply LLC

Unapproved and Misbranded Product Related to Influenza Virus

11/20/2020

11/18/2020

Vibrant Health Care, Inc.

Unapproved and Misbranded Products Related to Coronavirus Disease 2019 (COVID-19)

08/25/2020

08/12/2020

Banco Vida Corp.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)

08/19/2020

08/17/2020

PA Green Wellness LLC dba A Predictive Biotech Certified Facility

Unapproved and Misbranded Product Related to Coronavirus Disease 2019 (COVID-19)

08/19/2020

08/17/2020

Predictive Biotech

Unapproved and Misbranded Product Related to Coronavirus Disease 2019 (COVID-19)

07/23/2020

07/21/2020

21st Century LaserMed Pain Institute d/b/a Create Wellness Clinics

Unapproved and Misbranded Products Related to Coronavirus Disease 2019 (COVID-19)

05/22/2020

05/21/2020

North Coast Biologics

Unapproved and Misbranded Products Related to Coronavirus Disease 2019 (COVID-19)

03/18/2020

03/16/2020

Invitrx Therapeutics Inc.

Deviations/CFR/Regulations for Human Cells, Tissues & Cellular Products (HCT/Ps)