FDA warning letter · Drugs

Custom Research Labs Inc.

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 test samples of each component for identity and conformity with all appropriate written specifications for purity, strength, and quality. Your firm also failed to validate and establish the reliability of your component supplier's test analyses at appropriate intervals (21 CFR 211.84(d)(1) and 211.84(d)(2)).

Passage 2

Your firm failed to establish adequate written procedures for production and process control designed to assure that the drug products you manufacture have the identity, strength, quality, and purity they purport or are represented to possess (21 CFR 211.100(a)).

Passage 3

Your firm failed to validate the manufacturing process for **(b)(4)** drug product currently in distribution. This is a repeat observation from your 2016 FDA inspection.

Passage 4

Your firm failed to establish and follow 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)).

Passage 5

Failure to address violations may also cause the FDA to withhold issuance of Export Certificates. The FDA may withhold approval of new applications or supplements listing your firm as a drug manufacturer until any violations are completely addressed and we confirm your compliance with CGMP. We may re-inspect to verify that you have completed corrective actions to address any violations.

Citations in the original letter

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

  • 21 CFR 201.66(b)
  • 21 CFR 201.128
  • 21 CFR 201.66(b)(2)
  • 21 CFR 201.66(d)(7)
  • 21 CFR 210.3(b)(7)
  • 21 CFR 210.3(b)(8)
  • 21 CFR 210
  • 21 CFR 211.84(d)(1)
  • 21 CFR 211.100(a)
  • 21 CFR 211.166(a)
  • 21 CFR 211.22
  • 21 CFR 310.545(a)(10)(ii)
  • 21 CFR 310.545
  • 21 CFR 314.3(b)
  • 21 CFR 330.1(e)
  • 21 CFR 330
  • 21 CFR 330.3