Quality is a combination of attributes that serve as a basis for measuring the uniformity of a product and determines its degree of acceptability
Quality of a drug product is defined as the sum of all factors contributing directly or indirectly to its safety, effectiveness, and reliability
Market-oriented definition of quality includes 3 major elements:
Functional element: the product meets consumer's specifications in point of use (safe & effective for therapeutic action)
Aesthetic element: the product possesses an attractive design
Technological properties: the product can withstand surrounding conditions
Measurable quality definitions:
Conformance: the product should be within its prescribed limits or specifications
Fitnessforuse: considers the design or purpose for which the product is made
Reliability: the probability that the product will perform its intended function in the specified environment for a prescribed length of time
Yield: minimal or no defects resulting in a high degree of acceptable units produced
Customer satisfaction: achieving customer acceptance by being safe, pure, and effective
Quality Control (QC) ensures that a product conforms to standards and specifications through inspection, analysis, and action
Quality Assurance (QA) provides evidence to establish confidence that quality-related activities are being performed adequately
Management objectives:
PLOC: planning, leading, organizing, and controlling
Financial plan involves monetary expenditures and profits
Strategy is a broad program for defining and achieving organizational objectives
Strategic Plan is designed to meet broad organizational goals
Operational Plan provides details for incorporating organizational strategy into day-to-day operations
Mission of a quality management department:
Total commitment to ensure products meet prescribed standards for quality, safety, and effectiveness
Vision to be recognized for expertise in sustaining high product quality
Quality Organization/Responsibilities:
Quality Manager reports to a high-level administrator
Quality Control responsible for day-to-day quality control within the company
Quality Control (Manager; Pharmacist) functions:
Specification & Assay Development Section
Central Release Section
Chemical Control Section
Inspection & Checking Section
Biological - Microbiological Control Sections
Potential benefits derived from a quality control system:
Minimum risk of marketing unsafe products
Conformance to regulatory requirements
Guaranteed product efficacy
Less operating costs and losses
Higher employee morale
Motivation for pharmaceutical and medical professionals
Drug Standards:
Evaluated by pharmacopeial, in-house, or regulatory requirements
Pharmacopeial standards consist of specifications and procedures for substances and finished products
In-house standards are generated internally for control purposes
Regulatory standards mandated by regulatory agencies for compliance
Standards and Specifications:
Quality characteristics interpreted by descriptive words and measurements
Standards and specifications developed to accept or reject a product based on formula, raw material specification, standard operating procedure, finished product specification, and packaging material/components
Validation ensures production processes are controlled to perform as purported
Quality Assurance monitors and audits compliance to standards within the quality system
Responsible for advising senior management, implementing quality policies, liaison with regulatory agencies, product acceptance or rejection, preparing standard operating procedures, quality monitoring, and audit of all operations
Packaging Material/Components should be set for everything that goes around the product, such as bottles, cans, aluminum foil, cellophane, jars, caps, cap liners, labels, package inserts, cartoons, wrapping paper, and shipping cases
Test Methods are standardized or validated procedures that yield results of comparable precision, accuracy, specificity, and linearity
Compliance to pharmaceutical good manufacturing practices (GMP) may not be enough for the organic growth of an organization
Some firms find it advantageous to be accredited to an international consortium of representative bodies to develop uniform or harmonized international standards
The International Organization for Standardization (ISO) in Geneva, Switzerland has developed industrial standards for worldwide trading or participation in the global economy
ISO seeks to have an international language of quality through standards like ISO 9000 to 9004 to equalize quality systems between companies and countries
ISO 9000 focuses on how the management system assures the quality of parts and services a company produces
ISO 9001 is for companies engaged in manufacturing or in the development and delivery of a service
ISO 9002 is for companies that perform all functions except the design and development of products and services
ISO 9003 is for non-manufacturing companies such as distributors or warehousing operations
ISO 9004 provides guidelines to help interpret ISO 9001, ISO 9002, and ISO 9003
ISO certification certifies a management system, not the quality of goods produced
Certification is achieved through a third-party assessment accredited by ISO-Geneva
The local accredited assessor for certification in the Philippines is Certification International Philippines
The Food and Drug Administration issued minimum requirements for a quality control facility of drug manufacturers as an addendum to Administrative Order No. 56 s. 1989
US FDA Laboratory Practice Regulations prescribe good laboratory practices for conducting non-clinical laboratory studies supporting applications for research or marketing permits for FDA-regulated products
Non-clinical laboratory studies include in vivo or in vitro experiments to determine the safety of test articles
Non-clinical studies do not include studies utilizinghuman subjects or clinical studies or field trials in animals
Defects are undesirable characteristics of a product, while defective refers to a unit of a product containing one or more defects
Classification of defects can be based on measurability, seriousness, or nature
Sources of variation in product quality can be materials, machines, methods, and men.
To assure safety and therapeutic efficacy of drugs, internal factors like Total Quality Control and external factors like Current Good Manufacturing Practices are essential
CGMP regulations apply to organization and personnel, buildings and facilities, equipment, components and drug product containers and closures, and production and process control
A quality audit program should be established to monitor and evaluate the quality control laboratory effectively
Documentation in a quality control laboratory is critical and includes a wide range of administrative and operational information
Singer and Upton (1993) list types of information routinely recorded in a quality control laboratory