Tag Archives: biotechnology

EMA Publish Guidance on ICH Q11 on Development and Manufacture of Chemical and Biotechnology Drug Substances

EMA Publish Guidance on ICH Q11 on Development and Manufacture of Chemical and Biotechnology Drug Substances.

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This guideline describes approaches to developing process and drug substance understanding and also provides guidance on what information should be provided in CTD sections 3.2.S.2.2 – 3.2.S.2.6. It provides further clarification on the principles and concepts described in ICH guidelines on Pharmaceutical Development (Q8), Quality Risk Management (Q9) and Pharmaceutical Quality Systems (Q10) as they pertain to the development and manufacture of drug substance.

A company can choose to follow different approaches in developing a drug substance. For the purpose of this guideline, the terms “traditional” and “enhanced” are used to differentiate two possible approaches. In a traditional approach, set points and operating ranges for process parameters are defined and the drug substance control strategy is typically based on demonstration of process reproducibility and testing to meet established acceptance criteria. In an enhanced approach, risk management and more extensive scientific knowledge are used to select process parameters and unit operations that impact critical quality attributes (CQAs) for evaluation in further studies to establish any design space(s) and control strategies applicable over the lifecycle of the drug substance. As discussed in ICH Q8 for drug product, a greater understanding of the drug substance and its manufacturing process can create the basis for more flexible regulatory approaches. The degree of regulatory flexibility is generally predicated on the level of relevant scientific knowledge provided in the application for marketing authorisation.

Traditional and enhanced approaches are not mutually exclusive. A company can use either a traditional approach or an enhanced approach to drug substance development, or a combination of both.



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Damien Bové is THE Drug Development and Regulatory Consultant (pharmaceutical or biotechnology), I work with my clients to define a drug development target, define a drug development strategy, define a regulatory strategy or define a commercial strategy. Our clients are generally raising funds or looking to license out their technology and we help them achieve it. If you want to know more don’t hesitate to get in touch.

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Drug Regulators, EMEA, Publish ICH S6(R1), Preclinical Safety Evaluation of Biotechnology-Derived Pharmaceuticals

Drug Regulators, EMEA, Publish ICH S6(R1), Preclinical Safety Evaluation of Biotechnology-Derived Pharmaceuticals.

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Biotechnology-derived pharmaceuticals (biopharmaceuticals) were initially developed in the early 1980s. The first marketing authorisations were granted later in the decade. Several guidelines and points-to-consider documents have been issued by various regulatory agencies regarding safety assessment of these products. Review of such documents, which are available from regulatory authorities, may provide useful background in developing new biopharmaceuticals.
Considerable experience has now been gathered with submission of applications for biopharmaceuticals. Critical review of this experience has been the basis for development of this guidance that is intended to provide general principles for designing scientifically acceptable preclinical safety evaluation programs.

Regulatory standards for biotechnology-derived pharmaceuticals have generally been comparable among the European Union, Japan and United States. All regions have adopted a flexible, case-by-case, science-based approach to preclinical safety evaluation needed to support clinical development and marketing authorisation. In this rapidly evolving scientific area, there is a need for common understanding and continuing dialogue among the regions.
The primary goals of preclinical safety evaluation are: 1) to identify an initial safe dose and subsequent dose escalation schemes in humans; 2) to identify potential target organs for toxicity and for the study of whether such toxicity is reversible; and 3) to identify safety parameters for clinical monitoring. Adherence to the principles presented in this document is intended to improve the quality and consistency of the preclinical safety data supporting the development of biopharmaceuticals.

This guidance is intended primarily to recommend a basic framework for the preclinical safety evaluation of biotechnology-derived pharmaceuticals. It applies to products derived from characterised cells through the use of a variety of expression systems including bacteria, yeast, insect, plant, and mammalian cells. The intended indications may include in vivo diagnostic, therapeutic, or prophylactic uses. The active substances include proteins and peptides, their derivatives and products of which they are components; they could be derived from cell cultures or produced using recombinant DNA technology including production by transgenic plants and animals. Examples include but are not limited to: cytokines, plasminogen activators, recombinant plasma factors, growth factors, fusion proteins, enzymes, receptors, hormones, and monoclonal antibodies.
The principles outlined in this guidance may also be applicable to recombinant DNA protein vaccines, chemically synthesised peptides, plasma derived products, endogenous proteins extracted from human tissue, and oligonucleotide drugs.
This document does not cover antibiotics, allergenic extracts, heparin, vitamins, cellular blood components, conventional bacterial or viral vaccines, DNA vaccines, or cellular and gene therapies.
Damien Bové works as a drug development consultant (pharmaceutical or biotechnology) and regulatory consultant, we work with our clients to define a drug development target, define a drug development strategy, define a regulatory strategy or define a commercial strategy. Our clients are generally raising funds or looking to license out their technology and we help them achieve it. If you want to know more don’t hesitate to get in touch.

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recombinant vaccines for the prevention and treatment of infectious disease, and provides guidance on quality, non-clinical and clinical aspects.
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“Please note that the pages on this website are designed to provide you with general information only. We make no warranties, representations or undertakings about any of its content. This includes the completeness, accuracy and fitness for any particular purpose, or the content of any third party site referred to or accessed through it. You are personally responsible for ensuring that the information is correct and we will not be held liable or accountable for any mistakes that occur.”

New EMEA Draft Concept Paper – Immunogenicity Assessment of Manoclonal Antibodies for In-vivo clinical use

The EMEA release for review a draft concept paper today (24th March) on immunogenicity assessment of monoclonal antibodies for in-vivo clinical use. the consultation period lasts until June 2009.

Backgound to the concept paper

Unwanted immunogenicity is a significant problem with therapeutic biologicals. The clinical problems associated with unwanted immunogenicity vary in nature and incidence. The importance of the unwanted immunogenicity problem has led to the preparation and adoption of the ‘Guideline on Immunogenicity Assessment of Biotechnology-Derived Therapeutic Proteins’ by the CHMP (adopted April 2008).
Monoclonal Antibodies (mAbs) comprise a large important class of therapeutic biologicals. Different mAb products share some properties, but may differ in other aspects. Many mAb products are known to be associated with unwanted immunogenicity. Some issues pertaining to unwanted immunogenicity of mAbs differ in important aspects from those generally associated with therapeutic biologicals.

The Main problem being addressed

The incidence of immunogenicity associated with mAbs differs greatly between products, patients and even in different studies with the same product and patient type. The complexity of structure of mAbs possibly explains at least some of this variation. In some cases, especially with humanised or human sequence mAbs the immune response is predominantly anti-idiotypic, which clearly can compromise clinical responses to the mAb. In some cases the induced antibodies reduce clinical responses to the mAb to such an extent that further therapy has to be terminated.
The very large number of mAbs in clinical development and undergoing regulatory scrutiny emphasises the critical need for provision of appropriate guidance on the unwanted immunogenicity of this large class of biologicals. Questions on immunogenicity are often asked during assessments of marketing authorizations for mAbs. The development of biosimilar mAbs is prevalent in various parts of the world, which again stresses the importance of having good guidance available, as unwanted immunogenicity is well known to also be a concern with biosimilars.

The main recommendation from this concept paper are, the drafting of a guideline on immunogenicity assessments of monoclonal antibodies intended for in vivo clinical use. The EMEA are looking for expert input and opinion into this subject from the pharmaceutical industry.

If you would like more detail in this area please get in touch with Damien Bové damien.bove@idaconsultants.com

Damien Bové works as a drug development consultant (pharmaceutical or biotechnology) and regulatory consultant, we work with our clients to define a drug  development target, define a drug development strategy, define a regulatory strategy or define a commercial strategy. Our clients are generally raising funds or looking to license out their technology and we help them achieve it. If you want to know more don’t hesitate to get in touch.

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New Draft FDA Guidance on Somatic Cell Therapy for Cardiac Disease

The FDA CBER (Centre for Biologics Evaluation and Research) has released some draft guidance for industry. it is intended to provide sponsors who are developing cellular therapies for the treatment of cardiac disease, with recommendations on the design of preclinical and clinical studies and on the Chemistry Manufacturing and Controls information needed for IND’s (Investigational New Drug Applications), for cellular therapies aimed at cardiac disease. The guidance also provides recommendations regarding the information that you should submit on the product’s delivery system.

The Background to this guidance is expanded upon!

Despite advances in medical and surgical therapies, heart disease remains a major cause of morbidity and mortality. There is an increasing number of patients with significant morbidity despite optimal medical management. Cardiac cellular therapies have emerged as a field designed to advance the treatment of heart disease through the regeneration of cardiac tissues.

There has been much debate about how to interpret differing data and theories on the mechanism of action of cell therapies in cardiovascular disease. This guidance appears to be an attempt to set some standards in the design of these trials.

If you want to read the full guidance click here.

If you would like more detail in this area please get in touch with Damien Bové damien.bove@idaconsultants.com

Damien Bové works as a drug development consultant (pharmaceutical or biotechnology) and regulatory consultant, we work with our clients to define a drug  evelopment target, define a drug development strategy, define a regulatory strategy or define a commercial strategy. Our clients are generally raising funds or looking to license out their technology and we help them achieve it. If you want to know more don’t hesitate to get in touch.

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Bioequivalence of Therapeutic Proteins

As the first major generation of therapeutic proteins come of age and their patents expire the possibility of “generic versions” has raised. However the regulatory pathway for such “generic” drugs does not fit the complexities of therapeutic proteins. However the EMEA released guidelines on so called biosimilars (follow-on biological product in the USA), and a number of products have made it to market, we ask what are the key learning’s.

The issues to overcome:

  • Large complex molecules and standard analytical methods do not allow their full physical characterisation
  • Heterogenicity due to natural processes in the host cells needed for their production
  • Modification introduced during production, purification, formulation and storage
  • Impurities introduced during production and purification
  • Production processes are dynamic and undergo continuous improvement
  • Changes are accepted if similarity can be established, their is no need to be identical
  • In house methods and standards are not in the public domain

The Regulations

The EMEA is the only regulator to introduce regulations, these regulations make it clear that biosimilars are not the same and are not regulated in the same was as generic drugs. The regulations hinges on clinical data, and needs to go through the centralised procedure. The regulations provide clear guidance on data requirements and quality standards that need to be established to gain market approval, the requirements include:

  • Same extensive data on quality and safety as an innovative protein drug
  • Supplement showing similarity in quality, safety and efficacy between biosimilar and the same reference product
  • Extensive comparability exercise is required to demonstrate that the similar biological medicinal product in terms of quality, safety and efficacy to the reference medical product
  • Assessment of biological properties.
  • Results of biological assays
  • Non-clinical and clinical focusing on Pharmacokinetic (PK), Pharmacodynamic (PD), efficacy and safety with a focus on immunogenicity

Practicle Experience

A recent product approved as a bio-similar, Retacrit has provided a number of insights into the process and how data is evaluated through the publication of its European Public Assessment Report (EPAR), the issues considered in detail included:

  • Structural comparability
  • Purity comparisons
  • Biological activity
  • PK profiles
  • Clinical effect and side effects (over 600 patients were used in the studies)

If you would like more detail in this area please get in touch with Damien Bové damien.bove@idaconsultants.com

Damien Bové works as a drug development consultant (pharmaceutical or biotechnology) and regulatory consultant, we work with our clients to define a development target, define a development strategy, define a regulatory strategy or define a commercial strategy. Our clients are generally raising funds or looking to license out their technology and we help them achieve it. If you want to know more don’t hesitate to get in touch