FDA warning letter · Drugs

US Specialty Formulations, LLC

Issued · Posted by FDA

Selected passages from the FDA letter

Quoted FDA text from the published dataset. These selected excerpts are not the complete letter.

Passage 1

Your firm failed to perform adequate smoke studies under dynamic conditions to demonstrate unidirectional airflow within the ISO 5 area. Therefore, your products intended to be sterile are produced in an environment that may not provide adequate protection against the risk of contamination.

Passage 2

Your firm did not disinfect materials during transfer from the ISO 7 cleanroom into the ISO 5 hood. For example:

Passage 3

Your firm failed to establish an adequate air supply filtered through high-efficiency particulate air filters under positive pressure in the aseptic processing areas (21 CFR 211.42(c)(10)(iii)).

Passage 4

Your firm failed to establish and follow appropriate written procedures that are designed to prevent microbiological contamination of drug products purporting to be sterile, and that include validation of all aseptic and sterilization processes (21 CFR 211.113(b)).

Passage 5

Your firm failed to establish an adequate system for cleaning and disinfecting the room and equipment to produce aseptic conditions (21 CFR 211.42(c)(10)(v)).

Passage 6

Your firm failed to have buildings used in the manufacture, processing, packing, or holding of drug products of a suitable size, construction, and location to facilitate cleaning, maintenance, and proper operations (21 CFR 211.42(a)).

Passage 7

Your firm failed to conduct laboratory testing to determine whether each batch of drug product purporting to be sterile and pyrogen-free conforms to such requirements (21 CFR 211.167(a)).

Passage 8

Your firm failed to ensure that manufacturing personnel wear clothing appropriate to protect drug product from contamination (21 CFR 211.28(a)).

Passage 9

Your firm failed to establish an adequate system for monitoring environmental conditions in aseptic processing areas (21 CFR 211.42(c)(10)(iv).

Passage 10

Your firm failed to thoroughly investigate any unexplained discrepancy or failure of a batch or any of its components to meet any of its specifications, whether or not the batch has already been distributed (21 CFR 211.192).

Passage 11

Your firm failed to have, for each batch of drug product, appropriate laboratory determination of satisfactory conformance to final specifications for the drug product, including the identity and strength of each active ingredient, prior to release (21 CFR 211.165(a)).

Passage 12

Your firm failed to follow required laboratory control mechanisms (21 CFR 211.160(a)).

Passage 13

Your firm failed to establish an adequate written testing program designed to assess the stability characteristics of drug products and to use results of stability testing to determine appropriate storage conditions and expiration dates (21 CFR 211.166(a)).

Citations in the original letter

As cited in this historical letter, not a statement of current regulatory requirements.

  • 21 CFR 200.10(b)
  • 21 CFR 201.115
  • 21 CFR 210
  • 21 CFR 210.1(b)
  • 21 CFR 211.42(c)(10)(iii)
  • 21 CFR 211.113(b)
  • 21 CFR 211.42(c)(10)(v)
  • 21 CFR 211.42(a)
  • 21 CFR 211.167(a)
  • 21 CFR 211.28(a)
  • 21 CFR 211.42(c)(10)(iv)
  • 21 CFR 211.192
  • 21 CFR 211.165(a)
  • 21 CFR 211.160(a)
  • 21 CFR 211.166(a)