Extractables & Leachables USA 2020 Agenda

Take a look at the innovative presentations and expert speakers coming to Extractables and Leachables USA 2020!

Day One: Tuesday, April 21

Registration and Welcome

  1. Registration and Continental Breakfast

  2. Welcome and Opening Remarks

    Ashli Speed, Conference Producer, Smithers

    Paul Cummings, General Manager, Analytical Services, Materials Science and Engineering

Session I: Global E&L Landscape

In this session, the speakers will offer an overview of the current regulatory climate in various international jurisdictions.  While not detailed explanations of the regulations, these presentations will give attendees insight into the current status of regulations and the direction of different regulatory agencies around the world

  1. Materials Quality Regulation in China: New Developments and a Look Ahead

    Lee M. Nagao, Ph.D. | Senior Director, Science, Regulation & Policy of ELSIE

    China is deep into implementing reforms to its regulatory framework for reviewing and approving pharmaceuticals, biopharmaceuticals and medical devices.  In the past two years, the health authority has restructured and is now called the National Medical Products Administration.  The government has revised its overarching Drug Administration Law.  Further, various agencies within the administration are producing draft guidelines, pharmacopoeial documents, and other regulatory tools, including those relevant to packaging and device components, and the related supply chain.  Concurrently, agencies are participating in and integrating information from international groups and regulations.  This presentation will highlight some of these new developments, focusing on recent regulatory output with respect to container closure system and device materials, and will provide some thoughts on the future.

  2. Update on EU

    Presentation to be confirmed.

  3. Update On Brazil

    Presentation to be confirmed. 

  4. Challenges Facing ICH Q3E

    Atish Sen, PhD | Staff Scientist Analytical Sciences Inhalation Product Development of AstraZeneca

    ICH made a decision to proceed with the development of a new chapter ICH Q3E Guideline Impurity: Assessment and Control of Extractables and Leachables for Pharmaceuticals and Biologics.  This task faces many challenges from development, acceptance to delivery. ELSIE has established a Working Group in support of PhRMA. An update in the activities of ELSIE will be presented as well as a discussions of challenges ahead.

  5. Networking Break

Session II: Safety Assessment Strategies

  1. PQRI Best Practices: Use of a Classification Strategy to Develop Safety Thresholds for Leachables in Parenteral Drug Products

    Douglas J. Ball, MS, DABT | Managing Partner and Toxicology Consultant of D&B ChemTox, LLC

    Contemporary parenteral drug products make use of the advantages of the materials and designs that modern container closure systems (CCS) offer. Despite these advantages, these systems also present the potential for introducing leachable impurities into the drug product. Unlike process-related impurities, leachables typically exhibit structural distinction from each other and the drug itself, increasing the likelihood of multiple and differing toxicity profiles. Thus, unlike managing process related impurities which have been addressed in ICH guidance documents, the qualification of leachables can present both analytical and safety evaluation challenges in the risk assessment process. From a toxicology perspective, with some leachables safety data may already exist in the published literature, while with others additional in vitro and/or in vivo studies may need to be conducted to assess potential risk. In recognition of the challenges that the qualification of these specific impurities present, the Product Quality Research Institute (PQRI) Parenteral and Ophthalmic Drug Product (PODP) work team developed a process leading to the development of both analytical and safety thresholds for CCS-derived impurities to help ensure both the quality and safety of parenteral products. An update on the acceptability of this strategy based on regulatory review of the PQRI recommendations will be provided.

  2. Appropriate Scientifically-Defensible Approaches to Assessing the Toxicity of Extractables and Leachables in Drug Products: Using All the Tools Available

    Allan W. Ader, Ph.D., DABT | Co-Founder and Principal Toxicologist of SafeBridge Consultants, Inc.

    It is quite a challenge to digest all the analytical data developed from extractable and leachable studies just from the analytical side.  But what do you do with these data, once you have the information?  The FDA and other regulatory bodies and the drug, device, or supplier manufacturer want to ensure that those materials identified do not change the quality of the product or cause toxicity themselves.   A risk assessment of the extractables and leachables is needed that will provide scientific support to the safety of the product.  This presentation will provide approaches on what analytical data needs to be assessed, what toxicity data needs to be assessed, and how to conduct an appropriate and scientifically-defensible toxicological risk assessment for extractables and leachables into drug products for biopharmaceutical and small molecule products.

  3. Sensitization/Irritation 5 μg/dag Level

    Presentation to be confirmed.

  4. Networking Lunch

Session III: Analytical Challenges in E&L Profiling: Quantitation

  1. Extractables & Leachables: Importance of Sample Preparation, Data Collaboration and Interpretation

    Mourad Rahi, PhD | Director, Analytical Services of American Preclinical Services, LLC

    Extractables and Leachables (E&L) studies require a carefully planned design for extraction and data interpretation due to the complex nature of the materials, manufacturing processes, storage of medical devices along with their intended use.  However, E&L studies are often treated as routine tasks assigned to laboratory technicians trained in routine sample preparation with limited knowledge investigating complex extractables and leachables issues, data interpretation and correlation. Preparation of sample extracts is a very important process for trace level analysis of unknown components in complex matrices. Preparation and analysis of extracts require profound knowledge of sample handling, chemistry, chromatography, spectroscopy, technical skills, laboratory equipment along with, extensive training in data acquisition, molecular structure identification and confirmation and data interpretation. Identification relying solely on search libraries or databases as is generally followed and practiced in most laboratories, may lead to misidentification and mischaracterization of analytes.  Furthermore, quantification using relative response factors of representative standard compounds can swing the results by many fold either way.

     

    This presentation will highlight critical issues facing not only analytical chemists but toxicologists, consultants, manufacturers and suppliers.  We hope to provide scientific guidance and principles for harmonization of E&L investigations. Specifically, we will focus on the following points:

    1. Optimization of data acquisition using selective instrumentation based on the rule of solubility that “like dissolves like”

    2. Contradictions, vagueness, confusion and controversy of regulatory guidance documents, FDA feedback and reviews

    3. Pros and cons of use of the non-polar solvent (hexane) relative to its effect on device integrity prompting calls for its elimination during recent   E&L conference

    4. Presentation of data highlighting shortfalls of Artificial Intelligence/Library Search for compound identification

    5. Emphasis on training and qualification of analytical investigators and technical reviewers

  2. The Challenge of Obtaining Accurate Concentration Estimates for Extractables and/or Leachables

    Dr. Dennis Jenke | Chief Executive Scientist of Triad Scientific Solutions, UK

    The concentration of an extractable in an extract and/or a leachable in a pharmaceutical product or a medial device is an essential input into the assessment of the impact of the extractable (as a potential leachable) or the leachable on the quality of the product or device and the safety of the patient.  Clearly, the validity of the impact assessment depends on the accuracy of a compound’s estimated concentration, with the more valid impact assessments resulting from the more accurate concentration estimates.  Although it is a goal of all extractables and leachables studies to provide the most accurate concentration estimated possible, the practical challenges associated with meeting this goal are substantial and it likely that this goal is met to varying degrees using currently accepted quantitation practices. This presentation will examine quantitation practices, focusing on actions that can be taken to improve their inherent accuracy.  Furthermore, the available literature and published data will be used to quantify reasonable expectations for accuracy.             

  3. Triple Detection (LCMS-UV-CAD) as a Strategy for Reducing Response Factor (RF) Variation in Extractables and Leachables Analysis

    Mark Jordi | President of Jordi Labs

    Chemical characterization per ISO 10993 has become an important component of biocompatibility testing of medical devices. Similarly, pharmaceutical packaging is characterized for extractables and leachables to verify the safety of drug products per USP <1663> and <1664>. A major concern regarding the accuracy of extractables and leachables studies is quantitative error due to response factor (RF) variation. This error occurs because many extractables do not have commercially available standards and equal concentrations of different extractables give different signal responses using mass spectrometry detectors. Recent publications have highlighted the risks posed by RF variation for both LCMS (Jordi et al. Journal of Pharmaceutical and Biomedical Analysis 150 (2018) 368–376) and GCMS (Jenke and Odufu, Journal of Chromatographic Science 2012;50:206–212). The importance of this issue has been recognized by the FDA resulting in the addition of an uncertainty factor (UF) in the calculation of the analytical evaluation threshold (AET). While this aids in mitigating the risks of under reporting of extractables, the resulting revised AET creates significant analytical challenges often exceeding the limit of detection (LOD) of current mass spectrometry instrumentation and requiring sample concentration. It also creates questions as to the validity of risk assessments based on relative quantitation values and is one of the key issues at the root of poor reproducibility in recent high profile interlaboratory studies. It is therefore strongly desirable to define improved methods for quantitation with more universal RFs which mitigate the need for UFs. In this presentation, an alternative strategy for quantitation using triple detection liquid chromatography mass spectroscopy (LCMS) with ultraviolet (UV) and charged aerosol detection (CAD) will be presented. Data comparing the response factors for more than 200 extractables by UV, MS and CAD will be presented demonstrating an approach to reduce overall RF variation, the associated need for UFs and increasing confidence in the resulting risk assessments.

  4. Networking Break

  5. “Top 5” mistakes you might be making in E&L (Case Studies)

    Alan Hendricker | Manager - Chemical Sciences of Becton Dickinson

    Best practice documents for the characterization of E&Ls as well as other regulatory documents are well established for a variety of pharmaceutical systems, container closures and devices. However, as the industry evolves some non-optimal practices have begun to creep into the E&L thought pool that reminds us to reiterate/revisit tenets of the best practices and how we should approach certain aspects of E&L testing. This talk focuses on the author’s “Top 5” mistakes you might be making in E&L and will discuss reasoning behind a more optimal practice for each, including: 1) Performing toxicological risk assessments on organic/non-realistic solvent extractables quantitative (or semiquantitative) data 2) Expecting extractables characterization methods to be validated 3) Trying to quantitate HPLC-UV-MS data without authentic reference standards 4) Thinking that one set of extraction parameter variables is always better than another. 5) Thinking that replicate testing during extractables characterization studies is of large value added in all circumstances Multiple case studies will be presented showing experimental details in support of the best practice

Session IV: Analytical Challenges in E&L Profiling: Identification

  1. A Mass Spectrometry Based Identification of a Leachable from Secondary Packaging

    Dr. Dujuan Lu | Technical Client Manager/Global Lead - Life Science of SGS

    Secondary packaging components are integral to the final marketed package but are not in direct contact with the drug product. Although this indirect contact decreases the possibility of migration, there is still a risk for leachables. This presentation will focus on a case study on fragmentation mechanism of a cyclic ester, which was found as a leachable from secondary packaging. During the GC-HRMS/FID analysis, the compound was originally shown as an unknown. By using the High Resolution Accurate Mass (HRAM) in both Electron Ionization (EI) and Chemical Ionization (CI) Modes, we were able to obtain the molecular ion information and chemical composition of this compound. Tandem mass spectrometric experiments by GC-MS/MS were also performed to obtain fragmentation information at different collision energies. We were able to successfully identify the unknown compound and have demonstrated that the current literature shows incorrect information on one of the major fragment ions.

    Leachables from secondary packaging components.
    Utility of accurate mass measurements and high resolution for identification.
    Utility of tandem mass spectrometry for identification.

    Secondary packaging components are integral to the final marketed package but are not in direct contact with the drug product. Although this indirect contact decreases the possibility of migration, there is still a risk for leachables. This presentation will focus on a case study on fragmentation mechanism of a cyclic ester, which was found as a leachable from secondary packaging. During the GC-HRMS/FID analysis, the compound was originally shown as an unknown. By using the High Resolution Accurate Mass (HRAM) in both Electron Ionization (EI) and Chemical Ionization (CI) Modes, we were able to obtain the molecular ion information and chemical composition of this compound. Tandem mass spectrometric experiments by GC-MS/MS were also performed to obtain fragmentation information at different collision energies. We were able to successfully identify the unknown compound and have demonstrated that the current literature shows incorrect information on one of the major fragment ions.

    Leachables from secondary packaging components.
    Utility of accurate mass measurements and high resolution for identification.
    Utility of tandem mass spectrometry for identification.

  2. The Strengths and Pitfalls of a GC/MS Identification Strategy based upon Mass Spectral Matching, Using NIST & WILEY Mass Spectral Libraries

    Dr. Piet Christiaens | Scientific Director of Nelson Labs NV

    When establishing an extractables profile for a material, one of the most important steps in the process is to identify every single peak in a chromatogram as good as possible.  A correct identification of extractable compounds is one of the most important actions to take when characterizing the extractable profile, as it is only with a correct identification that one can link the identity of the compound to its relevant toxicological information. In GC/MS (either via a Headspace or a Direct Injection inlet), all labs (including Nelson Labs) that are performing extractables studies rely – to a larger or lesser extent – on publicly available commercial MS libraries (such as NIST or Wiley) to assist in the identification process. Indeed, the quickest way to identify a GC/MS mass spectrum is to verify if the mass spectrum is present in the commercial library, as a “mass spectral matching” strategy will allow to immediately link a mass spectrum to the compounds identity.

    However, improper use of these commercial MS-libraries may lead to incorrect or flawed identifications of extractables, which may compromise the subsequent toxicological evaluation. As there is no subsequent “quality control” on the identification of compounds anymore it is the responsibility of the analytical lab to correctly attribute a level of identification for the compound based upon Mass Spectral matching, this to avoid reporting of misidentified of compounds.

    The presentation will address the following issues:

    • What are mass spectral match factors, how are they determined, and what value do they have?
    • How to verify if a compound is present in a commercial MS-library. If a compound is not present in a MS-library, the identification strategy of Mass Spectral Matching will always fail.
    • Which values can give a “reliable” identification via mass spectral matching, which values are too far off to do any reliable identification
    • What to do if the quality of the mass spectral matching does not allow an unequivocal identification
    • How can a “review process” of the mass spectral match factors help as a “nonsense filter” when reporting identifications.
    • The value of a “retention index”, information that is often present in commercial MS-libraries, as an additional verification parameter.
    • How to broaden this up towards identifications in LC/MS?
  3. Panel Discussion: What is Acceptable and Achievable in Terms of Identification and Quantitation?

    More information and participants list coming soon.

  4. Networking Reception

Day Two: Wednesday, April 22, 2020

Registration and Welcome

  1. Registration Opens and Continental Breakfast

  2. Opening Remarks From The Chair

Session V: Regulatory Update

This session will feature presentations exploring the ever-changing regulatory landscape in the USA and abroad. Presentations in this session will address the disparities that exist in guidelines. 

Presentation information coming soon.

  1. Networking Break

Session VI: The Role of Chemical Characterization in Establishing the Biocompatibility of Medical Devices

The process by which the biocompatibility of medical devices is evaluated is undergoing an exciting change; transitioning from an approach that largely relied on animal testing to a method that is increasingly based on the safety assessment of extractable and leachable (E&L) compounds released from the device.  The two cornerstones of this approach are the ISO 10993-18 standard on chemical characterization and the ISO 10993-17 standard on 

  1. Chemical Characterization: Overview of the Revised ISO 10993 Part 18

    Presentation to be confirmed.

  2. Toxicological Safety Risk Assessment of Chemical Characterization data: Revised ISO 10993:17

    Ronald Brown | Toxicologist of former U.S. FDA (retired)

  3. Panel Discussion: Practical Implications of Chemical Characterization of Medical Devices

    More information and participants list coming soon.

Session VII: Analytical Advances

  1. Is the E&L community ready to move away from conventional large volume Liq/Liq Extraction & Solvent Evaporation?

    Mike Hodgson | Global Extractables & Leachables Senior Manager of Baxter International Inc

    Sample preparation is a critical step during the analysis of Semi-Volatile Organic Compounds (SVOCs) in aqueous samples using direct injection Gas Chromatography (GC) coupled to a Mass Spectrometer (MS) and/or Flame Ionization Detector (FID). By far the most common approach for the analysis of semi-volatile Extractables in aqueous solvent extracts of pharmaceutical container closure systems, or medical device components, is conventional liq/liq extraction using large solvent volumes and a separatory funnel followed by solvent evaporation. The main drawback of this approach is how labor intensive it is, especially if pH adjustment and derivatization is incorporated into the sample preparation. The advances in novel sample preparation and automation have provided the trace analytical community with an opportunity to embrace more efficient means to conduct these analyses. Baxter has developed and qualified a highly automated and cost-effective GC-MS/FID analytical method using the Gerstel Robotic Platform. It is based on the concepts of Dispersive Liquid/Liquid Micro-Extraction and incorporates pH adjustment & derivatization to achieve exceptional precision and incredibly low detection limits required to satisfactorily address toxicological significance

  2. Advancing E&L Analysis Through Sample Pre-Concentration

    Dr. Nikhil Sahotra | Materials Emission Market Specialist of Markes International, UK

    Updated regulations around the world highlight the need to understand chemicals, such as residual solvents, monomers, off-odors, and additives, that are released from products/materials. Chemical biocompatibility assessments are often constrained by the analytical limit of detection (LOD). The current industry procedure for quantitation of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) is by headspace and liquid-injection GC–MS analysis. Increasing the sensitivity of GC–MS analytical procedures can often be very challenging, even when using sample preparation/concentration techniques such as liquid-liquid extraction, solid-phase extraction, etc. The presentation explores solvent-free preconcentration techniques to achieve lower detection limits for the analysis of extractables and leachables.

  3. Migration Kinetics 2: Continued Study on Extractables Migration from Container/Closure Systems

    Benton Cartledge, Ph.D. | Senior Scientist of PPD Laboratories

    As a continuation of a study performed using bromobutyl rubber stoppers (previously presented at Smithers Rapra E&L USA 2019), polypropylene bottles were extracted using two different solvents across numerous time points. The goal of this study was to apply the kinetic models developed using the rubber stoppers and investigate the applicability of these models on a different container/closure system with different target analytes. Polypropylene bottles were extracted in IPA and ACN at 5, 25, 40, 50, and 60 °C over the course of various timepoints ranging from 4 hours to 180 days. HPLC was utilized to analyze for Irganox 1010, Irgafos 168, and related degradants. The concentration of each target compound (µg/bottle) was calculated and plotted against time. The results of the analyses showed similar trends between target analytes with a logarithmic increase in concentration with increasing time. Additionally, larger concentrations of target compounds were observed with higher extraction temperature. Finally, these data were evaluated against previously developed kinetics models.

Session VIII: Case Studies

This session is focused on the real-world application of extractable and leachable principles and guidelines – putting the theory into practice. It focuses on the different approaches taken by companies to understand the risk to patients.  

  1. Effect of the Terminal Sterilization for the Quality and Performance of Medical Devices; Delivery and Storage Systems

    Gyorgy Vas, Ph.D. | Technical Scientific Liaison of Intertek

    Radiation and ethylene oxide terminal sterilization are the two most frequently used processes in the pharmaceutical industry. They are efficacious, safe, to manufacture of sterile products. Terminal sterilization is routinely applied to a wide variety of commodity healthcare products, implantable medical devices (stents, heart valves, etc.) along with products used during implantation procedures (catheters, guidewires, etc.). Terminal sterilization is also routinely used for processing combination products where devices, drugs, and/or biologics are combined on a single product. All medical, ophthalmic and parenteral equipment are sterilized in batches, and usually sterilized using one of the methods of sterilization. As sterilization involving exposure to chemicals and elevated temperature or radiation dose, material compatibility is very important to understand, and should be studied before the sterilization process is finalized. Case studies will be presented covering the following topics: • Impurities related to ethylene oxide sterilization • Radiation induced degradation products for common antioxidants • Radiation effect on the drug delivery performance of combination de

  2. Presentation To Be Confirmed

  3. Panel: Future Direction of E&L

    Chair: Paul Cummings

    More information and participants list coming soon.

  4. Conference End, Closing Remarks