Peer-reviewed journal publications:
Pazhayattil, A.B., Ingram, M., Sagar, P., Kotini, K., Bodhe, A., Harwalkar, M., Joshi, S., Chakraborty, S., Nair, R.S., Elsaid, A. (2025). Variability Assessment Methods for Lyophilized Drug Product, A Case Study, PDA J Pharm Sci Technol, 2025 Nov 24.
Latreille, P., Pazhayattil, A., Turner, S., Talwar, N. (2024). A Novel Image Processing Technique for Weighted Particle Size Distribution Assessment, Drug Development and Industrial Pharmacy
Pazhayattil, A., Jennings, S., Spengler, C. (2024). Cell Culture Media Manufacturing Controls for Bio-Manufacturing, ISPE
Elsaid, A., Pazhayattil, A. (2024). Legacy Filling Lines Evolve: Safeguarding with RABS Technology, PDA
Pazhayattil, A., Sagar, P., Joseph, P. (2023). Time to Start Using Polypropylene Vials in the Industry, PDA
Sagar, P., Pazhayattil, A. (2023). Polypropylene (PP) Vials: An Efficient Primary Packaging Solution for Injectables, AAPS
Elsaid, A., Pazhayattil, A. (2022). A Successful Q-Model for New mRNA Line Commissioning & Qualification, PDA
Pazhayattil, A., Kotini, K., Kodidela, M., Scribner, M. (2022). Accelerating Biopharmaceutical Virtual FATs in a Pandemic, ISPE
Pazhayattil, A. (2022). Biopharma Equipment Design, Qualification and Monitoring Model, Institute of Validation Technology Journal
Pazhayattil, A. (2022). Machine Learning and Artificial Intelligence Strategies for the Pharmaceutical Industry, ProQuest Dissertations & Theses
Pazhayattil, A. (2021). Quality Management Systems for Drugs and Devices, RAPS
Pazhayattil, P., Galande, A., Badabhagni, S.R. (2021). Effect of Gum on In-vitro Dissolution of Oral Suspensions, ISPE
Pazhayattil, A. (2021). Prognosis of Legacy PfOS Process through Stage 3a Monitoring, Institute of Validation Technology Journal
Tomassini, S., Pazhayattil, A.,  Ingram, M. (2020). A Novel Dev. and Portfolio Mgmt. Strategy for Generic Small Mol., Journal of Generic Medicine
Pazhayattil, A., Sayeed, N., Chen, S., Ingram, M. (2020). A Semi-Quantitative Risk Assessment Methodology Fit for Lifecycle, PDA Journal
Pazhayattil, A. (2020). Continued Process Verification: Reacting to Data Signals, PDA
Pazhayattil, A., Ingram, M., Sayeed, N. (2019). A Quantitative Study of US FDA Inspection Data for Drug Manufacturing Sites, DIA Journal
Sayeed, N., Pazhayattil, A., Louis, I (2018). Prospects for Post-Approval Change Management, PDA
Pazhayattil, A., Sayeed, N. (2017). Excipient Usage Technical Risk Assessment, IPEC Journal
Ingram, M., Pazhayattil, A, Sayeed, N., Desai, G. (2017). Manufacturing Excellence Utilizing a Life Cycle Approach, ISPE 
Sayeed, N., Pazhayattil, A., Collins, J., Doshi, C. (2018). A Science and Risk-Based Methodology for BU, CU Assessment, AAPS PharmSciTech
Pazhayattil, Sayeed, N., Iyer, V. (2017). ICH Q12 Post Approval Change Management Protocol: Advantages, RAPS
Pazhayattil, A., Ingram, M., Sayeed, N. (2019). Modernizing Pharmaceutical Manufacturing, AAPS
Pazhayattil, A. (2017). How Global Orgs Can Achieve Process Validation Success, PDA
Sayeed, N., Pazhayattil, A., Collins, J., Chen, S., Ingram, M., Spes, J. (2016). Assessment Methodology for Process Validation Lifecycle Stage 3a, AAPS PharmSciTech
Pazhayattil, A., Alsmeyer, D., Chen, S., Hye, M., Ingram, M., Sanghvi, P. (2015). A Scientific Approach to Determine the Number of PPQ Batches, AAPS PharmSciTech
Alsmeyer, D., Pazhayattil, A., Chen, S., Munaretto, F., Hye, M., Sanghvi, P. (2015). Acceptance Probability (Pa) Analysis for PV Lifecycle Stages, AAPS PharmSciTech

​Other articles:
Pazhayattil, A., Joshi, A., Sharma, S. (2025). Advancing Quality by Design: Bridging Stage 3 and Stage 1 Process Design, AAPS
Chakraborty, S., Pazhayattil, A. (2025). Using Virtual Reality To Enhance Aseptic Contamination Control, Outsourced Pharma
Pazhayattil, A. (2025). Clinical Formulation and Manufacturing: A Strategic Leap for Indian Bulk Drug Manufacturers, Bulk Drug Manufacturers Association 
Ingram, M., Pazhayattil, A., Sagar, P., Chakraborty, S. (2025). 2024 Trends In FDA Observations For Sterile Drug Manufacturers, Outsourced Pharma
Pazhayattil, A. (2025). Fortifying API Supply Chains 2025 and Beyond, Bulk Drug Manufacturers Association
Pazhayattil, A. (2024). Indian Pharma Industry: Urgent Need for Action in the Manufacturing Sector, Express Pharma
Pazhayattil, A., Ingram, M. (2024). Stage 3a: A Key Indicator For Process Validation Maturity, Biosimilar Development
Pazhayattil, A. (2024). A New Year Call for Action: Analysing 2023 FDA Form 483 Observations for Indian Sterile Manufacturing Facilities, Express Pharma
Pazhayattil, A., Joshi, S., Ingram, M. (2024). 2023–2024 Trends in FDA 483s For Pharmaceutical Formulation Facilities, Outsourced Pharma
Pazhayattil, A. (2024). Advancing ML and AI in Pharmaceutical Manufacturing, Pharma Focus 
Joshi, S., Pazhayattil, A., Ingram, M. (2024). Critical Behavioral Attributes and Application of COM-B in Aseptic Processing, American Pharmaceutical Review
Pazhayattil, A., Ingram, M. (2024). Safeguarding Sterility: Crucial Insights from 2023 Facility Audits, Pharma Focus Europe
Pazhayattil, A., Gischewski, M., Pathan, S. (2024). Outsourcing And Phase-Appropriate GMP For Clinical Needs, Clinical Supply Leader
Pazhayattil, A., Konyu-Fogel, G. (2023). ML and AI Implementation Insights for Bio/Pharma Manufacturing. BioPharm International
Spes, J., Pazhayattil, A. (2023). Embracing AI-Driven Technology In Drug Development, Manufacturing, Outsourced Pharma
Pazhayattil, A., Ingram, M. (2023). Key Post-Pandemic Trends in FDA Observations For Drug Facilities, Life Science Leader
Turner, S., Talwar, N., Pazhayattil, A. (2022). Novel Formulations and Line Extensions with Soft Capsule Technology, PharmTech
Joseph, P., Pazhayattil, A. (2022). Taking a QbD Approach to Packaging Development, Pharmaceutical Manufacturing
Pazhayattil, A. (2022). Risky Business: Managing Risk In Biopharma Manufacturing, BioProcess
Pazhayattil, A. (2022). A Better Path for CMO Relationships, Lifescience Leader
Pazhayattil, A., Joseph, P., Forsythe, C. (2022). FAT, SAT & Commissioning Activities, Oh My!, Life Science Connect
Venugopalan, P., Pazhayattil, P., Ingram, M. (2021). Update On Regulatory Strategies To Mitigate Mutagenic Impurities, Life Science Connect
Pazhayattil, A., Sharma, S., Galande, A., Ingram, M., Rhoades, R. (2021). Assessing Manufacturing Process Robustness, BioPharm International
Pazhayattil, A., Sharma, S., Galande, A., Ingram, M., Rhoades, R. (2021). Assessing Legacy Drug Quality, PharmTech.
Galande, A., Pazhayattil, A., Sharma, S. (2021). A Checklist For Risk Assessment of Nitrosamine Impurities, Life Science Connect
Pazhayattil, A. (2020). Solving Pharma’s Quality Unit Identity Crisis, PharmTech
Pazhayattil, A. Ingram, M., Duyan, E., Zurita, V. (2020). Getting to the Root of Quality Problems, BioPharm International
Pazhayattil, A, Ingram, M., McFarland, A.B., Sayeed, N. (2019). A Roadmap for QRM Principles in DS Manufacturing, American Pharmaceutical Review
Pazhayattil, A, Ingram, M., Sayeed, N. (2019). Lessons from FDA 483s and cGMP Inspection Data, PharmTech
Pazhayattil, A, Ingram, M., Kumar, R., Rao, S., Meier, R. (2019). Is Continuous Manufacturing A Good Fit For Generic Products?, Life Science Connect
Sayeed, N., Pazhayattil, A., Ingram, M. (2019). ICH Q12: Bringing Regulatory Flexibility to Post-Approval Changes, BioProcess
Pazhayattil, A, Mathew, A., Ingram, M., Sayeed, N. (2018). Risk Mitigation Strategies for Compounding Pharmacies, Life Science Connect
Sayeed, N., Pazhayattil, A., Ingram, M. (2018). Lifecycle-Based PV Emphasizes the Need for CPV, PharmTech
Pazhayattil, A, Ingram, M., Sayeed, N. (2018). Cross-Sector Intelligence: The Prospects for Data Convergence, LifeScience Connect
Pazhayattil, A, Ingram, M., Sayeed, N. (2018). The Impact Of Regulatory & Analytics Evolution, Life Science Connect
Pazhayattil, A. (2017). PAT from a Small Molecules Vantage Point, BioPharma International
Pazhayattil, A., Sayeed, N. (2017). A Semi-Continuous Operations Model for Solid-Dose Manufacturing, Life Science Connect
Collins, J., Sayeed, N., Pazhayattil, A., Doshi, C. (2017). A Continuous Improvement Metric for Pharmaceutical Manufacturing, PharmTech
Pazhayattil, A., Sayeed, N., Collins, J., Doshi, C. (2017). A Novel Metric for Continuous Improvement during Stage Three, BioPharma International
Pazhayattil, Spes, J., Chaudhary, R.S. (2017). Continuous Manufacturing: A Generic Industry Perspective, PharmTech
Sayeed, N., Pazhayattil, A., Spes, J (2017). Quality Metrics and CMO Agreement: Significance of FDA Guidance, PharmTech
Sayeed, N., Chowdari, S., Pazhayattil, A. (2016). Determining Minimum Batch Size, PharmTech​
Alsmeyer, D., Pazhayattil, A. (2014). A Case for Stage 3 Continued Process Verification, Pharmaceutical Manufacturing
Pazhayattil, A. (2012). How to Conduct an Effective APQR, Pharmaceutical Manufacturing
Pazhayattil, A. (2012). GMP Compliance? There's An App for That!, Pharmaceutical Manufacturing
Pazhayattil, A. (2008). Quality Agreements: Making Them Stick, Pharmaceutical Manufacturing​

Case Study 1: Rescued Legacy Antibiotics from FDA Enforcement Risk
Led remediation of an FDA Warning Letter citing batch variability and poor tech transfer for legacy antibiotic suspension products. Rebuilt QbD controls, closed knowledge gaps, and delivered a robust process.
✅ FDA accepted without escalation
✅ Achieved consistent commercial batch performance in 5 months
✅ Resulted in a market monopoly for antibiotic suspension products

Case Study 2: Secured VAI Closure with Science Based FDA Response
Developed a structured, data driven, statistically sound response to a complex FDA 483 involving multiple deficiencies. Leveraged manufacturing science principles to develop a systemic remediation plan.
✅ FDA classified outcome as Voluntary Action Indicated (VAI)
✅ Avoided regulatory action

Data-Led. Quality-Focused. Patient-First.

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