―Spotting Inadequate Investigations, Corrective Actions, and Overall Weak Quality/GMP Systems‖ Robert D. Seltzer 1 My Mantra I. Don‘t reinvent the wheel: use other people‘s wheels & axles. II. Use technical terms, acronyms, & abbrevs; but first define them. III. Learn, use, and keep learning (i) rules of logic, (ii) statistics, (iii) quality tools. IV. Use profound quotes, clichés, analogies, metaphors, and imagery to convey thoughts quickly V. Question assumptions, particularly long-held and cherished ones. VI. Be willing to tell the emperor/empress (s)he has no clothes. VII. Don‘t tell me, ―Choose your battles‖: it‘s guerilla war w/ snipers! VIII. Ask anybody any question (except rhetorical ones—they insult!) IX. 2 Jolt people‘s creativity via over-the-top humor. Note: read the book by Roger von Oech‘ A Whack on the Side of the Head. ―If I have seen further than others, it is by standing upon the shoulders of giants.‖ –Sir Isaac Newton 3 Outline I. Truisms and Fallacies II. Triggers for Investigation, Remediation, and Corrective Action III. Risk Categorized and Semi-Quantified IV. Causes and Effects & Tools for Better Investigation V. Corrective Action Completeness and Effectiveness VI. GMP/Quality Maturity Models 4 I. Truisms and Fallacies Good Definition: description of a word or multi-word term that: a) does not use any form of the word itself; b) first places the word/term in a category or genus; c) distinguishes the word sufficiently from other category/genus members; and d) satisfactorily describes the word for any Englishspeaking audience 5 I. Truisms and Fallacies Working Definition: a satisfactory description of a word/term for use with a very specific audience, which differs from the definition found in a customary English dictionary 6 I. Truisms and Fallacies Familiarity w/ applicable working def’ns means that: • Technical discussions are facilitated; • Jargon, acronyms, etc., when understood by all present, shortens people’s sentences; • Definitions can, in and of themselves, enable better conceptualization and inherently organizes people’s thoughts. 7 I. Truisms and Fallacies Raw Data: any laboratory worksheets, records, memoranda, notes, or exact copies thereof, that are the result of original observations and activities of a non-clinical laboratory study [or any other activity such as mf‘g, qualification, or validation, etc.] and are necessary for the reconstruction and evaluation of the report of that study [or output of the specific activity]. In the event that exact transcripts of raw data have been prepared (e.g., tapes which have been transcribed verbatim, dated, and verified accurate by signature), the exact copy or exact transcript may be substituted for the original source as raw data. Raw data may include photographs, microfilm or microfiche copies, computer printouts, magnetic media, including dictated observations, and recorded data from automated instruments.‖ --21CFR 58 GLPs Note: Universally, color-photocopied, color-scanned, or color-faxed versions of original documents are exact copies and, therefore, identical raw data to the original. 8 I. Truisms and Fallacies Note: Requirements, statements and definitions in seemingly inapplicable Parts of Title 21 of the CFR are expected to be ―borrowed‖ / emulated by manufacturers falling under other specific 21CFR Parts and product types (i.e., pharmaceutics Part 210-211; devices Part 820; dietary supplements Part 111; foods Part 110). For example: 21CFR 820 Quality System Regulation for Medical Devices clearly defines and describes/specifies Quality Audit (820.3)—Quality audit: a systematic, independent examination of a manufacturer's quality system that is performed at defined intervals and at sufficient frequency to determine whether both quality system activities and the results of such activities comply with quality system procedures, that these procedures are implemented effectively, and that these procedures are suitable to achieve quality system objectives. 21CFR 58 clearly defines Raw Data (58.31) per previous slide. 21 CFR 11 clearly defines digital, handwritten signatures, and electronic records. 9 I. Truisms and Fallacies Objective Evidence: bias-free physical, documentary, analytical, or testimonial raw data gathered by an investigator(s), auditor, or investigation team to support a conclusion (could be an audit finding or inspection observation) Note: ―Evidence‖ is generally defined as data (whether or not raw) that is admissible in court. 10 I. Truisms and Fallacies Common Sense: identical technical, subject matter, or procedural knowledge possessed by all persons under discussion; if the knowledge is not shared by all persons under discussion, it is ―divergent knowledge‖—not ―common sense.‖ Note: ―Common Sense‖ is often used as a popular label and way to explain why others do not ―see‖ things the way we do and then criticizing or punishing them for it. That is, some people label others as lacking common sense if not thinking or acting according to our preconceived ideas. Therefore, ―Common Sense‖ is a fallacy! Fallacy (common dictionary def‘n): 1. a deceptive, misleading, or false notion, belief, etc. (e.g., ―The world is flat.‖ was at one time a popular fallacy) 2. a misleading or unsound argument 3. deceptive, misleading, or false nature; erroneousness 4. any of various types of erroneous reasoning that render arguments logically unsound ―Whoever undertakes to set himself up as the judge of Truth and Knowledge is shipwrecked by the laughter of the gods.‖ --Albert Einstein 11 I. Truisms and Fallacies Continuous Improvement is a Misnomer! Continual Improvement: An enhancement or upgrade that recurs in spurts and stops (i.e., with interruption versus w/o interruption as in ―continuous‖). Note: Kaizen is workforce-encouraged, undisciplined continuous improvement. Change Trigger Events: See first slide in Section II Continual (often preventive action sometimes corrective action) Continuous (uncontrolled, untested, improperly conceived change & NEVER how preventive action or corrective should occur) Time 12 Discontinuity is essential to ensure that gains are consolidated and locked in! II. Triggers for Investigation, Remediation, and Corrective Action Trigger Events Best Defined by Examples Below: Periodic Product Review (e.g., Annual Product Review) Management Review (or Quality Council Meetings/Action Items) Change Control/ Change Request Atypical/ Out of Trend Result Out of Specification (analytical lab, micro lab, Envmt’l Limits) Notice of Event; Deviation; Variance (other degrees & synonyms) Nonconforming Material (incoming or in-process) Audit; Self-Inspection; Regulatory Inspection Product Quality Complaint Adverse Drug Reaction Unplanned/ Unscheduled Work Order Product Pre-Recall-or-Withdrawal Investigation 13 II. Triggers for Investigation, Remediation, and Corrective Action Competent Authority: a country-specific agency or body designated to administer that country‘s laws/statutes governing the marketing, manufacturing, testing, and holding of safe and effective pharmaceuticals, medical devices, foods, dietary supplements, cosmetics, etc. Note: examples include the US Food and Drug Administration (FDA), Japan‘s Ministry of Health, Labor, and Welfare (MHLW), Australia‘s Therapeutic Goods Administration (TGA). Noncompliance: act, state, or result that violates a competent authority‘s written or implied law, directive, regulation, or guidance/guideline Deviation, Nonconformity, Variance (or any other synonym): a departure from SOPs, methods, specifications, protocols, or other official documentation; may also be a departure from instructions, process specifications, or normal conditions (e.g., borderline conformances); Note: Deviations are recorded either within a document such as a batch record or validation report or in a stand-alone deviation record or in a database directly (latter is ideal). 14 II. Triggers for Investigation, Remediation, and Corrective Action Product Incident: an event or finding that might affect products in terms of quality, safety, marketability, or viability within the company portfolio, such as product complaint, product recall, market withdrawal, negative publicity, or a directive from a competent authority Product Quality Complaint: any communication, after a product is released for distribution, that contains any allegation, written, electronic, or oral, expressing concern, for any reason, with the quality of a product, that could be related to current good manufacturing practice. Examples of product complaints are: Foul odor, off taste, illness or injury, disintegration time, color variation, tablet size or size variation, under-filled container, foreign material in a dietary supplement container, improper packaging, mislabeling, or products that are super-potent, sub-potent, or contain the wrong ingredient, or contain a drug or other contaminant (e.g., bacteria, pesticide, mycotoxin, glass, lead) Note: The above definition of Complaint borrows from both 21CFR 211 (finished pharmaceuticals) and 111 (dietary supplements). 15 II. Triggers for Investigation, Remediation, and Corrective Action Two Powerful FDA Finished Drug CGMP Requirements around Investigations 21CFR 211.192 ―…Any unexplained discrepancy (including a percentage of theoretical yield exceeding the maximum or minimum percentages established in master production and control records) or the failure of a batch or any of its components to meet any of its specifications shall be thoroughly investigated, whether or not the batch has already been distributed. The investigation shall extend to other batches of the same drug product and other drug products that may have been associated with the specific failure or discrepancy. A written record of the investigation shall be made and shall include the conclusions and follow-up.‖ 21CFR 211.198 (b) (3) ―Where an investigation under 211.192 is not conducted, the written record shall include the reason that an investigation was found not to be necessary and the name of the responsible person making such a determination.‖ 16 II. Triggers for Investigation, Remediation, and Corrective Action Necessary: of or having to do with a condition (in logic) that must be met for the parent statement containing that condition to have a possibility of truth Sufficient: of or having to do with a condition (in logic) that, if met, ensures the truth of the overall parent statement Note: A condition can be either (1) necessary or (2) sufficient without being the other. Lastly, a condition can be (3) both necessary and sufficient. Examples given on next slide: 17 II. Triggers for Investigation, Remediation, and Corrective Action Example of Only Necessary Manufacturing acetylsalicylic acid from non-animal is necessary but not sufficient for an Aspirin product to be free of animal-spread pathogens, e.g., TSE. Necessary: The finished drug must be manufactured using certifiably non-animal-origin active pharmaceutical ingredient (API) acetylsalicylic acid. Not sufficient: API freedom from animal origin material is necessary but not sufficient for the finished drug to be free of animal-spread pathogens. For example, if gelatin is used as an excipient and is derived from a herd of UK sheep, this weak link (esp for TSE) negates all other measures. Example of only Sufficient Because the polymerase chain reaction (PCR) assay on a random environmental monitoring bacterial colony isolated from a toploading balance in the dispensing room determined the species to be purely Bacillus cereus, it is sufficient to conclude that a Gram Positive spore former contamination has occurred in that area. Sufficient: Organism identified via PCR ensures/guarantees this conclusion. Not Necessary: Having to use this highly sensitive confirmatory genotypic assay at an environmental monitoring investigation on a non-sterile, early mf‘g step is not necessary (cheaper, phenotypic ID would prove bacillus contamination, e.g., Vitek or characteristic colonies grown on Polymixin egg yolk selective agar). 18 II. Triggers for Investigation, Remediation, and Corrective Action Example of Necessary and Sufficient Conditions Both Met Statement: If the Quality Assurance Unit signs off and releases a particular lot of finished pharmaceutical, then one can consider this lot to have been prepared according to GMPs and not adulterated or misbranded. Necessary: QAU‘s approval and sign-off is required for distribution of the finished pharmaceutical. Sufficient: QAU‘s approval and sign-off ensures/guarantees that no known or unacceptable GMP violation, failure of specifications, or failure of required environmental conditions, adulteration, or misbranding occurred to or during this lot. The condition of QAU sign-off is necessary and sufficient for that conclusion. ―Logic will get you from A to B. Imagination will take you everywhere.‖ --Albert Einstein 19 IV. Causes and Effects & Tools for Better Investigation How One Argentine Pharma Plant Triages Customer Communications into Adverse Events & Complaints and Selects Appropriate Investigations/Tests to Try to Understand the Causation System 20 II. Triggers for Investigation, Remediation, and Corrective Action If the tracking (tickler file), trending, reviewing of triggers for investigations or corrective actions is cumbersome or unsystematic, or a simple MS Word or simple Excel spreadsheet (with no sorting), then: a) Some instances of investigation and corrective action triggers might not be recorded or assessed at all, not assessed properly, and/or not assessed in a timely manner b) Some investigations that should be performed consistently (because of default questions and drop-down choices) wouldn‘t be consistent c) Regulatory or internal audits of trigger data or corrective actions would be more difficult and prolonged d) Many auditors and regulators would consider the absence of any database to track, analyze, and trend investigation and corrective action trigger data to be noncompliance with CGMPs e) Beware the dependability of data/records and their traceability to date and person creating or changing the record (Part 11) 21 II. Triggers for Investigation, Remediation, and Corrective Action In this speaker’s opinion, the model CGMP database for tracking, trending, and linking investigation and corrective action triggers is SPARTA Systems’ TrackWise® See below references on the web (I) Work Instruction by the European Medicines Agency (EMA) for using TrackWise® EMA Work Instruction in TrackWise http://www.emea.europa.eu/docs/en_GB/document_library/Work_Instruction__WINS/2009/09/WC500002711.pdf (II) Applications of TrackWise® Enterprise Quality Management http://www.spartasystems.com/trackwiseeqms/?utm_source=googlesearch&utm_medium=ppc_search&utm_campaign=g_tweqms_text_tosite&gclid =CM2_gbTAqKYCFY9O4QodWj79Xw 22 III. Risk Categorized and Semi-Quantified Risk: The perceived outcome of an event measured in terms of severity of consequence and likelihood of occurrence of that event outcome Risk Assessment: the determination of quantitative or qualitative value of risk related to a hazard Most risks relevant to GMP-related investigations fall within these categories: Patient Health Risk Product Conformance, Compliance, and/or Legal Risk Process Risk Reputational/Marketing/Market-Share Risk Environmental, Transportation, or Worker Health Risk 23 III. Risk Categorized and Semi-Quantified Examples of Ranks of 1 – 5 of Severity of Consequence Score Financial 5: Catastro -phic Significant operational losses leading to significant reduction of market value Product Quality Severe effect on patient health and safety Reputation Regulatory Environmental Health & Safety Fatality (ies) / environmental disaster resulting Regulatory and Govt intervention (possible criminal & civil charges, and plant closure) Legal Extensive national / international media scrutiny and long-term disruption of stakeholder confidence Product withdrawal or non-approval of blockbuster product or forced closure of sole source mf‘g plant. Possible criminal chrgs Product quality unlikely to affect pt health and safety Short-term local media coverage and disruption to stakeholder confidence Fines and penalties. Operation under consent decree Serious injuries / some short-term envir damage to be remediated. Regulatory minor fines, penalties Moderate product liability litigation Recoverable interruption to critical activities in short-term (< 2 weeks) Minimal impact to No effect revenue or on patient earnings health and safety Localized annoyance/ concern/ complaints no media coverage Reg warning letter w/ fewer issues, products not involving sig health consequences Minor injuries / negligible impact on environment. Incident reporting according to routine protocols Legal challenge with minor out-of-court settlement Impact can be absorbed within normal business operations Criminal prosecution, corp. and/or execs fined and possibly imprisoned. Nationwide product liability class action Business Interruption Recoverable interruption to critical activities in long-term (greater than 1 month) 4: Major 3: Moderate 2: Modest 1: Minor 24 Excessive costs being incurred that impact current earnings and profitability III. Risk Categorized and Semi-Quantified Examples of Ranks of 1 – 5 of Likelihood Score 25 Description 1 Rare 2 Unlikely 3 Possible 4 Likely 5 Almost certain Examples An incident might happen every 50 years Incident might be seen once during working life. Probability of incident close to zero Controls are failsafe An incident might happen every 5-10 years May see several incidents during working life Incident foreseeable but probability very low Incident not known to have happened at another business unit An incident might happen every 1 - 5 years An incident may have happened at another business unit Controls may be breached One or more incidents might occur a year Personnel would not be surprised by incident Significant number of incidents might occur each year Incidents occur frequently Control measures are not defined or are inadequate III. Risk Categorized and Semi-Quantified Consequence and Likelihood Matrix: table showing likelihood ranks down the left side and consequence ranks across the top such that the two may be multiplied to arrive at respective risk index values (RIVs) Risk Index Value (RIV): The consequence score multiplied by the likelihood score for an individual risk 26 III. Risk Categorized and Semi-Quantified Risk Evaluation: The prioritization of identified and assessed risks and determination of the risk-handling strategy Note: Risk-handling strategies include (i) complete removal/ eradication of the confirmed causes, (2) mitigation, (3) improved detection/ early warning, (4) no action but only monitoring. However a strategy cannot be devised until the causation system is understood. 27 IV. Causes and Effects & Tools for Better Investigation Root Cause: The underlying reason for the actual or potential occurrence of a non-conformity or other undesirable event outcome The above definition represents --and most of the GMP community believe— that an undesirable event outcome has a single cause or a linear, sequential set of causes. 28 IV. Causes and Effects & Tools for Better Investigation Realitycharting was best introduced in the book by Dean L. Gano called Apollo Root Cause Analysis. Because Gano thought the concept of ―root cause‖ to be at odds with his philosophy and method, Realitycharting does not contain Root Cause Analysis (RCA) in its name. Gano postulates that causes and effects are really the same thing, and they are part of an infinite continuum (I’d call it a causation system). The complete understanding of that causation system is limited primarily by our lack of knowledge. 29 IV. Causes and Effects & Tools for Better Investigation Realitycharting: a method described as follows: A team brainstorms at least two causes (of the trigger event) in the form of an action and condition along with evidence supporting those conditions. The team then asks why of each stated cause until there are no more answers, and produces a cause and effect chart that shows all the known causes and their inter-relationships. All causes are then examined to find a way to address them using a solution that is within the company‘s control, prevents recurrence, and meets the company‘s goals and objectives. 30 IV. Causes and Effects & Tools for Better Investigation Process repeats to create a causation system (causeand-effect continuum) 31 IV. Causes and Effects & Tools for Better Investigation Note: Brainstorming and decision-making to arrive at corrective action solutions (sol‘ns) can use various tools such as the other so-called rootcause-analyses and force-field analysis—see below): Force Field Analysis Once the preferred corrective action tentatively selected, enter Driving Forces supporting it as well as Restraining Forces to be overcome or minimized. Drivers include justifications, resources/ people, business need(s), financial benefit(s), risks reduced, etc. Sample Corrective Action—(i) steam sanitize all formulation vessels used for solelyBenzalkonium-Chloride-preserved product and (ii) sterile filter all batching H2O. DRIVING FORCES 32 RESTRAINING FORCES Reduces to almost 0 the risk of Burkholderia cepacia in product Better product formulation w/ EDTA and propylene glycol will make even cepacia unlikely Additional preserving excipients cost money and raise toxicity risks USP-sourced EDTA and propylene glycol are minimally toxic and exist in numerous drugs This will reduce bioburden in unpreserved products formulated in same vessels Steam raises worker safety risks IV. Causes and Effects & Tools for Better Investigation The Fishbone isn’t an ―End All‖—Just one Brainstorm Aide! 33 IV. Causes and Effects & Tools for Better Investigation The Five Why’s is Overly Simplistic! "We can't solve problems by using the same kind of thinking we used when we created them." --Albert Einstein ―If you do not know how to ask the right question, you discover nothing.‖ –W. Edwards Deming 34 IV. Causes and Effects & Tools for Better Investigation What Impedes Understanding the Causation System and Choosing the Optimal Corrective Action(s)? Pessimism or negative expressions such as: • • • • • • ―It will never work here.‖ or ―No one will buy it.‖ ―We already tried that once.‖ ―It‘s not in the budget.‖ ―Good thought, but impractical.‖ ―No one else is doing it that way.‖ ―We‘ve always done it that way.‖ Gano says not to let a solution-killing statement like these go unanswered. 35 . IV. Causes and Effects & Tools for Better Investigation Gano counsels against adopting favorite solutions such as: • Punish / Place a note in the person‘s HR file • Reprimand • Call it ―Human Error‖ as the Cause and Effect • Retrain • Put up a warning sign • ―Ignore it—stuff happens.‖ Note: Read the book by Ferdinand F. Fournies: Why Employees Don‘t Do What They‘re Supposed to Do…and What to Do about it ―When a system is stable, telling the worker about mistakes is only tampering.‖ –W. Edwards Deming Note: When workers are not in a state of self-control, per Joseph Juran‘s def‘n, then the causation system points at management, and corrective actions must be management‘s responsibility. Joseph Juran’s Definition of an Operator Beining in state of self-control,: •Must Know what the target is; •Must have a means to measure performance; 36 •Must have the ability to take corrective action IV. Causes and Effects & Tools for Better Investigation Cynic: a person who believes that only selfishness motivates human actions and who disbelieves in or minimizes selfless acts or disinterested points of view. ―Cynicism masquerades as wisdom, but it is the farthest thing from it, because cynics don’t learn anything, because cynicism is a self-imposed blindness, a rejection of the world because we are afraid it will hurt us or disappoint us. –Stephen Colbert 37 V. Corrective Action Completeness and Effectiveness CAPA (corrective and preventive action) are not ―wedded‖ concepts. Corrective Action: Activity or project to eliminate, mitigate, or better detect some or all of the causes of a detected nonconformity or other undesirable situation, and thus avoid or reduce recurrence. Preventive Action: Activity or project to eliminate, mitigate, or better detect some or all of the causes of a hitherto non-occurring or unseen, but not improbable non-conformity or other undesirable situation, and thus preclude or reduce the probability of its occurrence. ―The time to repair the roof is when the sun is shining.‖ --John F. Kennedy 38 V. Corrective Action Completeness and Effectiveness Remedial Action: Immediate measure(s) taken to address an urgent and/or damaging trigger event until a thorough investigation and a corrective action is implemented ―Walter Shewhart conceptualized the ―Plan, Do, Check, Act‖ cycle. However, many practice only the second step, which results in a ―Do Do‖ organization‖ –Anonymous 39 V. Corrective Action Completeness and Effectiveness ―If it ain’t broke, don’t fix it.‖ –possibly the most dangerous, fallacious proverb of all time! It‘s fittingly attributable to T. Bert (Thomas Bertram) Lance, the Director of the OMB in Jimmy Carter‗s administration. 40 V. Corrective Action Completeness and Effectiveness Corrective Action Completeness is defined & achieved by the following: 1. Necessary and sufficient training (or re-training) has been administered (does rule exist of not more than 20% absentees from training?); 2. Necessary and sufficient procedures, instructions, and/or physical changes are ―in place‖ (i.e., written & issued, or installed & commissioned); 3. Necessary and sufficient qualification, validation, and/or other implementation (i.e., ―in use‖) has/have been confirmed by the site quality unit (SQU) and then stated or recorded as such. Note: Nothing in a key GMP procedure or expectation should be superfluous (meaning, everything is necessary), AND there must be a minimum threshold of adequate corrective action measures (i.e., the sum total of all necessary items create sufficiency). Thus the reason for the ―necessary and sufficient‖ clause in all the Completeness criteria. 41 Note: Corrective Action completeness ≠ effectiveness! V. Corrective Action Completeness and Effectiveness Corrective Action Effectiveness is defined and achieved by most or all the following: 1. The causation system of the trigger event‘s outcome have been identified and have become better understood (e.g., using Realitycharting). 2. Defensible, risk-based solution(s)/corrective action(s) has(have) been determined and adopted controllably (e.g., via change control, vald‘n). 3. Proper monitoring has been put in place around the implemented corrective action(s). 4. A determination has been made that corrective action(s) has/ have not resulted in any other undesirable event outcomes as a by-product. 5. From the determined causation system, the original trigger event‘s outcome doesn‘t reappear (or to a lower frequency). This criterion will likely require trending/databasing. 42 VI. GMP/Quality Maturity Models and Relevant Quotes Quality Management Maturity Grid of Philip Crosby 43 VI. GMP/Quality Maturity Models Spectrum of GMP & Quality Believers/Learners (Like GE Jack Welch‘s 10% non-achieving, 70% highly achieving, & 20% super-achieving) Incorrigible, Non-Believing, Untrainable Initially Easily Skeptical, Trainable, then Positively Progressively Impressionable Trainable A Zealot Devoted to Quality, a Role Model, a Trainer, a Sage VI. GMP/Quality Maturity Models Note: Companies / auditees who say, ―We look at findings as opportunities to improve‖ are usually outstanding and are in Yoda‘s company on the previous graph. ―A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.‖ –Sir Winston Churchill 45 VII. GMP/Quality Maturity Models Example of an Audit Finding for Seriously Inadequate QC investigations at a US Multinational API Plant in China: Investigations around analytical results are not always complete or ask the appropriate questions to enable the appropriate remedy(ies) or corrective action(s). Two out of two OOSs were the sampling and rate of this discovery. Specifically: a) Inv-OOS-TJ2-2009-08-02 reaches an unsupported conclusion for a raw material test OOS result of 46.82 % content of chloromethyl methylester vs spec of greater than 99% as being caused by storage deterioration of the sample. No conclusive, supporting study was conducted to simulate and support this conclusion. Also the investigation does not look into why it deteriorated. Additionally, a cross-functional investigation of the improper storage was not conducted. b) Inv-OOS-TJ2-2009-07-02 for a GC result of 2.2% versus a spec of < 0.5% for an API. The samples from the packaged drum had heterogeneities of chunks and powder of MTBE (methyl tributyl methyl ether). The CAPA addresses the drying process but not the reason why QC accepted the sample for analysis based on its questionable appearance. No appearance specification currently exists for this API. The risk is that proper remedies and corrective actions will not be taken in response to material test failures and the site will face the same failure repeatedly. 46 VII. GMP/Quality Maturity Models Example of FDA Warning Letter Item for a US Contract Parenteral Drug Manufacturer ―There was a failure to thoroughly investigate any unexplained discrepancy or the 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 C.F.R. § 211.192]. For example: a. Your firm did not conduct a thorough investigation to determine the source of endotoxin contamination. (1) Your firm failed to conduct thorough investigations into the failure of multiple lots of Propofol (958302, 958364, 958438, 958445, and 968716) that significantly exceeded in-process levels for endotoxin ([redacted] EU/ml) during [redacted] testing, but later passed final product testing for endotoxin. Your quality control unit (QCU) determined these lots to be acceptable for release without determining the source of the contamination. 47 VII. GMP/Quality Maturity Models Example of FDA Warning Letter Item for a US Contract Parenteral Mf’r (cont’d) (2) Your investigation of these lots concluded that since the inprocess test for endotoxin was for investigational purposes, full investigations were not required. A root cause for the high [redacted] results for endotoxin was not identified, and the results were not scientifically invalidated by any of your firm's investigations. In light of the high endotoxin test results seen at your facility during the manufacturing of Propofol, we are concerned that your firm may lack an adequate understanding of the product and the process for manufacturing Propofol. We strongly recommend that your firm review your process design and endotoxin controls for the entire manufacturing process, e.g., prior to the filtration and terminal sterilization. Some considerations may include the raw materials used in the process and the lengthy compounding process. 48 VII. GMP/Quality Maturity Models ―Even if you’re on the right track, you’ll get run over if you just sit there.‖—Will Rogers 49
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