At AGS, we are dedicated to helping you develop robust products and processes that drive sustainable business growth. Our expertise covers a range of advanced methodologies, including Quality by Design (QbD), Design of Experiments (DoE), Process Analytical Technologies (PAT), Quality Risk Management (QRM), Statistical Process Control (SPC), and improvements in cost, quality, and efficiency. Our purpose is to drive the “Accelerating growth and sustainability” of pharmaceuticals, biotechnology, specialty chemicals, fine chemicals, and food industries.
Dr. Gautam Samanta, the founder of AGS Pharma Consulting, is an innovative and results-driven Six Sigma-certified professional with over 30 years of experience in both academic and pharmaceutical research and development. He has a strong track record in developing robust drug substances and drug products and has expertise in analytical methods through the Quality by Design (QbD) approach.
Dr. Samanta is highly skilled in scaling up APIs and managing technology transfers, demonstrating a remarkable ability to reduce costs while enhancing the quality of high-value commercial APIs. He has successfully implemented Process Analytical Technology (PAT) on a commercial scale, achieving consistently high-quality pharmaceutical products and reducing batch failure rates. Dr. Samanta has an extensive academic portfolio, having published over fifty articles in prestigious peer-reviewed journals, including Nature. Additionally, Dr. Samanta has authored seven book chapters and holds three process patents, reflecting a strong commitment to both scholarly research and practical innovation.
With over three years of consulting experience, he has trained more than 500 R&D scientists, engineers, and quality professionals across leading pharmaceutical companies, Contract Development and Manufacturing Organizations (CDMOs), and specialty chemical firms. His client portfolio includes Sun Pharma, Aurigene Pharmaceutical Services Limited (a unit of Dr. Reddy’s Laboratories), Cipla Ltd, Apitoria Pharma (a unit of Aurobindo Pharma), Neuland Laboratories, Alivus Life Sciences, and others.
He specializes in delivering impactful training on Quality by Design (QbD) and Process Analytical Technology (PAT), equipping teams with practical, industry-relevant expertise.
In addition, he has provided strategic consulting support to resolve long-standing quality challenges at commercial scale for organizations such as Aarti Industries and Jubilant Ingrevia. His interventions have enabled sustainable product supply, improved operational efficiency, and contributed significantly to revenue growth.
Our Services
Quality by Design (QbD)
Quality by Design (QbD) is a systematic approach to development that emphasizes predefined objectives, a deep understanding of both product and process and rigorous process control, all grounded in sound science and quality risk management. The U.S. Food and Drug Administration (FDA) is urging pharmaceutical companies to adopt this science and risk-based approach in product development and manufacturing. Enhanced testing alone does not improve product quality; instead, quality must be inherently built into the product from the outset.
Know moreDesign of Experiments (DoE)
The generic pharmaceutical industry is experiencing rapid growth, with a heightened focus on quality and intensified market competition. As product complexity increases daily, the Design of Experiments (DOE) emerges as a crucial tool for enhancing processes, cutting costs through yield optimization, and minimizing process failures while boosting product quality. DOE provides a systematic approach to improving processes by examining the relationship between inputs and outcomes. As a core component of the Quality by Design (QbD) framework, DOE is extensively utilized across the biotech industry and other sectors.
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Process Analytical Technology (PAT)
Process Analytical Technology (PAT) is a system designed to analyze and control manufacturing processes through real-time measurements of critical quality attributes, ensuring the final product meets desired quality standards. PAT is crucial for enhancing process understanding and enables real-time monitoring and release of products at a commercial scale. As a key component of Quality by Design (QbD), PAT focuses on continuous monitoring throughout the manufacturing process to ensure product quality, rather than relying solely on end-product testing.
Know moreQuality Risk Management (QRM)
Quality Risk Management (QRM) is a systematic approach to identifying, assessing, and controlling risks to product quality throughout its lifecycle. Far from being merely a regulatory requirement, QRM is a core philosophy that underpins excellence in the pharmaceutical industry. By employing structured risk assessment and mitigation strategies, companies can enhance product quality, reduce costs, improve operational efficiency, and ensure regulatory compliance.
Know moreStatistical Process Control (SPC) and Cost, Quality, and Efficiency Improvement
Statistical Process Control (SPC) is a statistical technique used to measure, monitor, and control processes. It provides a scientific approach to managing and improving processes by identifying and eliminating special cause variations. As manufacturing businesses face challenges due to rising raw material costs and operating expenses, it becomes crucial for them to focus on cost reduction, increased efficiency, and quality improvement in their processes.
Know moreScale-Up (API)
Process scale-up involves transferring a chemical process from the lab to larger equipment used in pilot or commercial plants, aiming to maintain the same conversion, selectivity, quality, and physical properties. A key challenge in successful scale-up is achieving the desired results on the first attempt within a reasonable timeframe, without the need for extensive rework or additional lab studies.
Know moreSome facts
50+
Publications
8000+
Citations
3+
Patents
25+
Invited Lectures
600+
Happy Clients
Our Testimonials
Geena Malhotra
Chief Technology Officer, Torrent Pharmaceuticals Limited and former President and Global Chief Technology Officer, Cipla Ltd
“
Dr. Gautam Samanta is a distinguished expert in the fields of Quality by Design (QbD), Design of Experiments (DoE), Process Analytical Technology (PAT), and Process Scale-Up with over 2 decades of experience in this field. I watch him come to life when his teams are given a project or when he leads seminars on it. He is a well-known leader and mentor in his industry.
With over 3 decades of experience in both academia and industry, Dr. Gautam Samanta has made significant contributions to the development and optimization of manufacturing processes. I have personally engaged with him for over a decade. His expertise in QbD allows him to design robust processes that meet regulatory requirements while ensuring high product quality. He is adept at using DoE to systematically plan, conduct, and analyze experiments, optimizing process parameters to achieve desired outcomes efficiently.
Dr. Gautam Samanta is also a leading practitioner of PAT, leveraging real-time data and analytical tools to monitor and control manufacturing processes. His work in this area has led to the implementation of cutting-edge technologies that enhance process understanding and ensure consistent product quality.
In addition to his technical expertise, Dr. Gautam Samanta is known for his ability to scale up processes from the laboratory to full-scale production. His deep understanding of both the theoretical and practical aspects of process scale-up ensures that transitions from pilot to commercial scale are smooth, cost-effective, and yield high-quality products.
Throughout his career, Dr. Gautam Samanta has published extensively in peer-reviewed journals. His work continues to influence the fields of quality assurance and process development, making him a respected leader.
Dr. Rakeshwar Bandichhor
Chief Scientific Officer, Aarti Pharmalabs Limited
“
Dr. Gautam is an accomplished scientist with deep expertise in pharmaceutical sciences and engineering. His pioneering works in Automation, Quality by Design (QbD), Design of Experiments (DoE), Process Analytical Technology (PAT), and Scale-up have significantly advanced the understanding and implementation of crucial methodologies for drug development and scale-up.
Dr. Gautam’s expertise is in applying innovative techniques and technologies to ensure consistency in pharmaceutical products. By employing state-of-the-art instrumentation and statistical tools, he has developed robust strategies for scaling up APIs while adhering to stringent regulatory guidelines. As a proponent of QbD, Dr. Gautam has seamlessly integrated QbD principles into the drug development lifecycle, promoting a systematic approach that clarifies the relationship between chemistry, process, and product quality. His leadership in QbD has resulted in numerous successful product approvals in highly competitive therapeutic areas. Additionally, his initiatives in laboratory automation and high- throughput screening have accelerated research and development while setting new standards for data integrity and reproducibility. Dr. Gautam’s workshops and seminars on QbD/DoE, PAT, and process scale-up are widely acclaimed and designed to train the next generation of scientists in these essential skills.
Dr. Pranab Halder
Director, API External Partnership, Sandoz Global Development
“
Dr. Gautam Samanta is a distinguished expert in pharmaceutical Quality by Design (QbD) with remarkable expertise. His meticulous attention to detail, problem-solving abilities, expertise in Design of Experiments (DoE), Process Analytical Technology (PAT), and collaborative approach have made him an invaluable asset to pharmaceutical organizations. It has been a privilege to work with him, and I am confident that he will continue to make significant contributions to the pharmaceutical field.
Dr. Sastry Mudiganti
Deputy Director, Generic Drug Synthesis, Neuland Laboratories
“
I recently had the privilege of attending a QbD workshop led by Dr. Gautam Samanta, and I was thoroughly impressed by his extraordinary pedagogical skills. Dr. Samanta’s expertise in utilising statistics to draw meaningful conclusions to optimise the different reaction parameters was truly enlightening. His ability to break down complex concepts into understandable segments made the workshop both effective and engaging. His ability in teaching reminds me of the postgraduate days of my best professor.
Thanks to his guidance, I now feel more confident in applying the QbD principles to all my complex reactions, where I cannot get a clue about the loss of yield and quality. Irrespective of the success rate of applying QbD, I would love to apply these principles to some of my reactions. His demonstration skills to use the Design of Experiments tool to identify the Critical process parameters and their interactions, which was incredibly insightful. His explanation of statistical tools like ANOVA and regression analysis helped us to understand how to pinpoint various factors that significantly impact the product quality.
Dr. Samanta’s dedication and enthusiasm towards diversified areas of interest and his clear, methodical approach make him an outstanding resource person and educator in the pharmaceutical field.
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