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· Active ingredient · Decomposition products · Excipients · Particulates · Cleaning/Sanitizing agents · Bioburden · Endotoxin Assessment Criteria after Cleaning · Acceptance criteria for selected test markers include the following: 1. · The extent of validation is dependent upon the type of method employed, the capabilities of the method, the scientific and regulatory needs of the resulting data and the anticipated outcome of the testing.

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Risk is the combination of the probability of occurrence of harm and severity of that harm ii. · Working within the design space is not considered as a change · Including additional information allows for demonstration of a high degree of understanding of the manufacturing process, which can lead to more flexible regulatory overview Defining Operating Range · Characterization space=characterized space · Acceptable operating range = design space · Operating range = operating space Risk analysis to determine the probability of falling outside the design space Choosing the Cleaning Method · CIP : Clean in Place 1. Performed by circulating cleaning solutions through the equipment. Automated, semi-automated · COP: Clean out of place 1. Temperature, Time, cleaning agent concentration, # of rinses, · A test method is used to evaluate consistency in acceptability of cleaning · Test until clean scenario to be avoided Identifying Critical Areas of Equipment · Critical cleaning locations are more difficult to clean and most probable sites for contaminant carryover · Sucrose- Riboflavin test under UV light · Swab sampling performed at critical locations · Product contact surfaces must be identified · Worst case sampling locations e.g. Limulus Amoebocyte Lysate (LAL) Types of Sampling · Two types of sampling acceptable are the rinse and swab sampling methods · Swab most desirable direct method of surface sampling · Rinse for inaccessible areas and sampling large surface areas · A combination of the two methods is most desirable Choosing the Sampling Locations · Sample the worst case locations for contaminants · Sampling information in protocol should specify i. Storage conditions for collected samples Critical Background Information Supporting Cleaning Study · Surface recovery studies e.g. · Hold time studies- Clean equipment hold times, Dirty equipment hold times, sample hold times · Procedure for collecting rinse, swabs and performing visual inspection · Analytical test method validation · Matrices for test methods- Ensure sample matrix does not interfere with the test method · Raw Data File for Protocol Execution Information on Hold Times · Dirty Equipment Hold Times: Time when equipment dirty to equipment cleaned · Clean Equipment Hold Times: Time equipment cleaned to time equipment sterilized · Sample Hold times: Time test samples collected to time test samples tested Why Specify DEHT & CEHT · DEHT : Nature of soil may change overtime with drying or microbial proliferation Changes make soil more difficult to remove by the cleaning process · CEHT : Possible Microbial proliferation (FDA cleaning validation guidance- 1993) Storage conditions of the cleaned equipment Protocol Execution: Raw Data File · Supporting details relevant to sections of the protocol is kept in a Raw Data File as reference documentation e.g..

Risk to quality evaluation should be based on scientific knowledge and link to protection of patient scientific knowledge and link to protection of patient iii. Better process performance Process Parameters for Robust Design · Factors to be considered in designing an effective cleaning process include the biochemistry of the residue, the manufacturing process, equipment design and testing methods for the target analyst. Equipment is removed and cleaned remotely Semi automated, manual Detergent Selection for Target Residues · Two types of cleaning agents: alkaline or acid. Piping, valves, tubing Residue Removal Capability · Residue removing capability can be enhanced by prewash steps in the cleaning cycle · Should be linked to a measurement system that shows how much residue present · Acceptable residue levels after cleaning has direct impact on acceptance criteria and carry over calculations The Validation Strategy · Specify acceptable clean endpoint, what is measured for acceptance criteria · Include hold times during manufacturing · Specify sampling locations and rationale · Specify the test methods · Specify type of samples – rinse, swab · Approach for assessment of equipment groups/bracketing Validation Vs Verification · Validation: Documented evidence shows repetition in demonstrating consistency and meeting predefined quality attributes. Information supporting derivation of acceptance criteria, information on analytical test methods, justification for sampling sites, surface area calculations etc. No assignable cause Creating OOS Document · Describe the OOS · Investigation of OOS · Impact and assessment of OOS on the validation study · Resolution · Conclusion · Review & Approval · Operator/Personnel conducting validation study · Production · Quality unit Monitoring the Cleaning Validation Process · Two main opportunities for monitoring cleaning data: i.

TOC analysis can be adapted to any drug compound or cleaning agent that contains carbon and is “adequately” soluble in water.

Studies have shown that TOC methods also can be applied to carbon containing compounds that have limited water solubility, and recovery results are equal to those achieved by HPLC.6 TOC methods are sensitive to the ppb range and are less time consuming than HPLC or UV/Vis.

Level of effort formality and documentation of quality risk management commensurate with level of risk Application of Quality System Concepts ICH Q10 · Pharmaceutical Quality Systems i. Consistency in global pharmaceutical environment iii. Transparency of systems, processes organizational management responsibility iv. · Often formulated with surfactants, chelating Often formulated with surfactants, chelating agents and emulsifiers to enhance effectiveness. · Verification: Similar to validation however data generated apply only to that specific cleaning event. Considerations for Process Capability, Reliability and Consistency · Goal is to operate at process capability that ensures that predefined acceptance limits are consistently met in a reproducible manner · Residue data is used to generate process limits · Acceptance limits should be scientifically justifiable, achievable and risk-based. During process development monitoring generates data for setting acceptance criteria for cleaning validation study ii.

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