PROCESS DEVELOPMENT FACILITIES AND PILOT

PLANT

Munira Mohamed NazariSchool of Bioprocess Engineering

UniMAP

MANUFACTURING AND PRODUCTION OF BIOLOGICAL PRODUCTS

(ERT 455)

WEEK 15

TOPIC OUTLINE

Primary and Secondary Processing, Process Development, Small-Scale Pilot Facilities, Physical Manipulation Pilot Plants, Filling and Packing Pilot Plants

2

SMALL-SCALE PILOT FACILITIES

3

Chemical Synthesis ???

Is purposeful execution of chemical reactions to get a product. This happens by physical and chemical manipulations usually involving one or more reactions.

In modern laboratory usage, this tends to imply that the process is reproducible, reliable, and established to work in multiple laboratories.

A chemical synthesis begins by selection of compounds that are known as reagents or reactants. Various reaction types can be applied to these to synthesize the product, or an intermediate product. This requires mixing the compounds in a reaction vessel such as a chemical reactor. Many reactions require some form of work-up procedure before the final product is isolated.

4

There are two main types of processes used to manufacture pharmaceuticals: chemical synthesis based on chemical reactions, and bioprocessing based on the ability of microorganisms and cells to produce useful substances.

Chemical synthesis can be used to produce pharmaceutical products with relatively low molecular weights in large volumes in short timespans. In addition, various chemical modifications can be applied to enhance the activity of the substance produced.

5

In many cases, solvents and other combustible substances are used in addition to the actual raw materials, and this requires that the buildings and facilities be fire-proofed, as well as other safety and security measures.

Also, in many cases, corrosive fluids are involved, requiring the use of glass linings or other anti-corrosive measures. The manufacturing processes often entail crystallization and crystal separation, with many processes needed for transport and insertion of solids. In general, pharmaceutical plants produce many different products, and production lines must be kept separate from one another to prevent cross-contamination of products.

6

7

Chemical Synthesis (con’t…)Reaction Equipment SSPF with capacities that range from 20

– 100 L usually required for chemical synthesis stages.

Glass equipment is usually used to provide a high level corrosion resistance so that particular processes can took part.

8

Chemical Synthesis (con’t…)

Solid Handling Equipments Most pharmaceutical intermediates are in solid form. Therefore, simple filters, centrifuges & dryers are

required. The equipments corrosion resistant & mobile

(allowing the equipment to be connected to reaction equipment)

The equipment will be replicate to be used on production scale that have similar modus operandi.

The problem of small scale solid handling equipment is that it suffer from problem that much of product may be held up in the equipment that cause the production yield to be low.

9

10

A laboratory centrifuge is a piece of laboratory equipment, driven by a motor, which spins liquid samples at high speed.

There are various types of centrifuges, depending on the size and the sample capacity.

Function - to separate substances of greater and lesser density.

Chemical Synthesis (con’t…)Multi-purpose Equipment Multi-purpose equipments are sometimes

provide so that it could be used for reactions, filtration and drying process.

The advantage of this type of equipment is that it reduces handling. Therefore it also reduce the exposure of operators to chemicals.

Although the equipment is complex, it usually compromise & the result is not cost effective and less optimal.

11

Chemical Synthesis (con’t…)

Solvents As most of chemical syntheses use flammable

solvent, it is necessary if the SSF be a flameproof area.

These facilities normally located within laboratory complexes and thus it is appropriate if flameproof area is being separated from safe areas. This may be accomplished b using pressurized air locks and use pressurization of safe areas.

A flameproof drum handling and storage area is build outside from the building to reduce ventilation need as SSF uses large number of solvents (that is handled in drum)

12

Chemical Synthesis (con’t…)

Methods of transferring solvents: Require a safely transferring from drums to

manufacturing equipment. One method involve moving the drums from drum

store to dispensary area, where the require quantity is decanted into safe solvent container before it is transferred to reaction area.

For some cases, intermediate containers could be use to transfer liquid from drum area to dispensary.

Solvent recovery facilities are hardly find in the SSF unless one or more solvent is used in a large quantity and can be recovered using the equipment used for chemical processes.

13

Chemical Synthesis (con’t…)

Toxicity Chemical intermediate that contains active

pharmaceutical ingredient are often highly potent.

The designation of facility must ensure the safety of operating personnel. This may covered by the building design, use of fume cupboard, local extract ventilation, glove-boxes, rapid transfer ports, contained transfer coupling and air suits.

14

Chemical Synthesis (con’t…)

Fume cupboard Ventilation device that is designed to limit exposure

to hazardous or noxious fumes, vapors or dust. Is typically a large piece of equipment enclosing five

sides of a work area, the bottom of which is most commonly located at a standing work height.

Designed to address goals of: protect the user. protect the product or experiment. protect the environment.

15

Chemical Synthesis (con’t…)

16

Glove box Sealed container that is designed to allow one to

manipulate objects where a separate atmosphere is desired.

Built into the sides of the glove box are gloves arranged in such a way that the user can place their hands into the gloves and perform tasks inside the box without breaking containment.

Two types of glove boxes: allows a person to work with hazardous substances, such as

radioactive materials. allows manipulation of substances that must be contained within a

very high purity inert atmosphere, such as argon or nitrogen.

Chemical Synthesis (con’t…)

Environmental Considerations Chemical synthesis route is highly complex (in

some cases more than 20 intermediates are made before the active pharmaceutical ingredient is prepared)

Facilities must be equipped with waste streams so that all waste could be handled properly.

Widely large variety of chemicals produced in a low volumes usually precludes usage of an on-site effluent treatment plant.

Liquids and solids must be categorized in groups that can be mixed together for disposal.

17

Chemical Synthesis (con’t…)

Vapor & gaseous emission are being treated depending on their quantity & toxicity.

Vapors can be condensed by using a low temperature system using liquid nitrogen cooling system for economical matter at small scale.

For gaseous emission, solvent, acid or alkali scrubbing system may be required.

Choice of equipment depends on : Chemical used Flexibility required

18

PHYSICAL MANIPULATION

A process that does not involve chemical reaction but change the purity of the material.

Involves: crystallization, filtration, chromatography, milling, drying or blending.

This process is required to fulfill one or more of these requirements: Crystal morphology Moisture content Specific particle size

19

PHYSICAL MANIPULATION (cont..)

Equipment used for process such as crystallization, filtration & centrifugation may be as same as the one used for chemical synthetic process.

Some other equipment is used to carry out other particular operation such as milling, micronization or granulation.

Equipments need to be mobile to achieve maximum flexibility.

As many organic solids are explosive, it is likely the most appropriate method to be used inert gas blanketing.

20

MANUFACTURING THE FINAL DOSAGE FORM

21

FILLING

Process of putting the finished product into primary container (bottle, blister pack etc.)

Small quantity: hand operated bench machine Individual machines separate and manually

moving filled pack from one place to another

Large quantity: automatic machine Integrated filling lines (filling-check

weighing-washing) connected together.

22

PACKING

Process of putting the product (primary packaging) into secondary packaging.

Clinical trials : packing by hands If more than 1000 containers: semi-

automatic packing machine Chosen packs will be tested on clinical trials

– (sampling)

23

BUILDING DESIGN24

BUILDING DESIGN (con’t…)25

BUILDING DESIGN (con’t…)26

BUILDING DESIGN (con’t…)27

BUILDING DESIGN (con’t…)

A containment building, in its most common usage, is a steel or reinforced concrete structure enclosing a nuclear reactor.

It is designed, in any emergency, to contain the escape of radiation to a maximum pressure in the range of 60 to 200 psi ( 410 to 1400 kPa).

The containment is the fourth and final barrier to radioactive release (part of a nuclear reactor's defence in depth strategy), the first being the fuel ceramic itself, the second being the metal fuel cladding tubes, the third being the reactor vessel and coolant system.

28

29

30

31

CONTROLS & INSTRUMENTATION

Depend on the quantity of products and equipment used.

Considerations: Equipment compatible with environment Instrumentation suitable for in-house

calibration Control systems should be short, simple and

flexible

32

Happy Holidays!!Merry Christmas & New YearGood Luck for Your Exam…

THANK YOU33

34

Propose four advantages of GMP standard application for food processing industry. [20m]

Differentiate contamination and cross-contamination. [20m]

Explain why parameters below need to be qualified in HVAC system. Temperature [20m] Room pressure [20m]

Explain why we need to design proper material storage and handling process in pharmaceutical industry. [20m]