China Valsartan API Firm Resolves GMP Issues

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FDA has issued a close-out letter citing resolved GMP issues at Zhejiang Huahai Pharmaceutical Co., Zhejiang, China, an active pharmaceutical ingredient manufacturer (API) that is the reported maker of the active ingredient in recalled valsartan-containing products over the past several years (see earlier story). An inspection in 2016 cited the firm for:

  • failing to follow written procedures designed to prevent contamination of drug products purporting to be sterile;
  • failing to establish laboratory controls that include scientifically sound and appropriate specifications, standards, sampling plans, and test procedures designed to assure that drug products conform to appropriate standards of identity, strength, quality, and purity;
  • processing areas are deficient regarding the system for cleaning and disinfecting the equipment; and
  • Data is not recorded contemporaneously.

A 2018 inspection at the firm’s Taizhou Zhejiang, China, facility also found GMP issues, such as the failure of the quality unit to ensure that quality-related complaints are investigated and resolved; and failure to evaluate the potential effect that changes in the manufacturing process may have on the quality of the firm’s API.

The 11/10 close-out letter says FDA has completed an evaluation of the firm’s corrective actions in response to the Warning Letter. “Based on our evaluation, it appears that you have addressed the deviations contained in this Warning Letter,” it says.“Future FDA inspections and regulatory activities will further assess the adequacy and sustainability of these corrections.”

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