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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_5415_Библиотеки_им_академика_М_И_Перельмана

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sensitive to various environmental factors such as temperature, pH, light, and agita­tion. Therefore, optimal conditions must be determined for maintaining the stability of the biological product over its intended shelf-life. Typically, biological products are stored at refrigerated temperatures (2–8°C) and protected from light.
The most common route of administration is the parenteral route by injection or infusion. Indeed, most biologics are injectable products, either consisting of solu­tions in vials, prelled syringes, and autoinjectors or lyophilized powders/cakes for reconstitution (Table15.1). Among injectable products, liquid formulations are pre­ferred for enhanced compliance of clinicians and patients since their preparation is simpler than thawing or reconstituting lyophilized products. When possible, liquid pre-loaded in syringes and autoinjectors also facilitates self-administration.
Generally, excipients used in biological products are those common to other injectable pharmaceutical products, including buffering agents (citrate, acetate, his­tidine, and phosphate), bulking agents (e.g., cryoprotectant and lyoprotectant), and osmotic and tonicity agents. Importantly, proteins can suffer aggregation or denatur­ation during processing, which will negatively affect their therapeutic activity. Therefore, excipients including mannitol, trehalose, sucrose, and histidine and sur­factants including polysorbate 20 or polysorbate 80 are used.
The packaging material and container closure system play a critical role in pre­serving the biological product‘s integrity and preventing contamination. The pack­aging must be compatible with the product and provide a barrier against external factors like moisture, light, and oxygen. Most biological products are contained in vials, ampoules, prelled syringes, and autoinjectors. If the product is formulated using lyophilization (i.e., freeze-drying), then the nal form of the product in the vial is in the form of a solid rigid cake (see, Chap. 6, Sect. 6.5), and instructions for reconstitution are provided by the manufacturer. These instructions specify how the product should be reconstituted using a specic solvent before administration. Sterile Water for Injection USP and Bacteriostatic Water for Injection USP are used to reconstitute lyophilized products, generally with gentle swirling by rotating the vial without shaking or agitation. Shaking can cause foaming, which can cause proteins, which can be surface active, to diffuse to and locate at the liquid-air inter­face. This results in less protein being available for withdrawal from the vial and possible aggregation and denaturation. Also, some biological products require Sodium Chloride 0.9% USP as the solvent for reconstitution or dilution.
15 Drug Product Design andDelivery ofBiologics
15.4 Devices forAdministration ofBiological Products
andPerformance Testing
With the exception of products like inhaled insulin (Afrezza®), nebulized dornase alfa (Pulmozyme®), and cenegermin-bkbj ophthalmic eye drops (Oxerbate®) most biologics are administered by injection. Injectable formulations require syringes for administration and, therefore, are commonly contained as a solution in vials, pre­lled syringes, and autoinjectors (pens) (Fig.15.1).
15.4 Devices forAdministration ofBiological Products andPerformance Testing
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225
Table 15.1
Brand name
Humira Adalimumab TNF-α
Enbrel Etanercept TNF-α
Rituxan Rituximab CD20
Avastin Bevacizumab VEGF
Herceptin Trastuzumab HER2
Exemplary therapeutic biological products and their formulation composition
Mechanism of action
and Active ingredient
therapeutic
class
inhibitor;
monoclonal
antibody
inhibitor;
fusion
protein
antigen
targeting;
monoclonal
antibody
inhibitor;
monoclonal
antibody
targeting;
monoclonal
antibody
Dosage form, presentation, and route of administration
Solution in prelled syringe, autoinjector, and vial; subcutaneous injection
Solution in prelled syringe and autoinjector; subcutaneous injection
Lyophilized powder; subcutaneous injection
Solution in vial; intravenous infusion
Solution in vial; intravenous infusion
Lyophilized powder for reconstitution; intravenous infusion
Storage stability requirements according to product label Excipients
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C)
Citric acid monohydrate, dibasic sodium phosphate dihydrate, mannitol, monobasic sodium phosphate dihydrate, polysorbate 80, NaCl, sodium citrate, and water
Sucrose, NaCl, L-arginine hydrochloride, and sodium phosphate
Mannitol, sucrose, and tromethamine
NaCl, sodium citrate dihydrate, and polysorbate 80, and water for injection USP
Trehalose dihydrate, sodium phosphate monobasic, monohydrate, sodium phosphate dibasic anhydrous, polysorbate 20, and water for injection, USP
L-histidine HCl, L-histidine, trehalose dihydrate, and polysorbate 20
(continued)
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15 Drug Product Design andDelivery ofBiologics
Table 15.1
(continued)
Mechanism
of action
and
Brand name
Active ingredient
therapeutic
class
Lantus Insulin glargine Insulin;
peptide
hormone
Neulasta Peglgrastim Pegylated
G-CSF
analog
Lucentis Ranibizumab VEGF-A
inhibitor;
monoclonal
antibody
Eylea Aibercept VEGF-A
inhibitor;
fusion
protein
Keytruda Pembrolizumab PD-1
inhibitor;
monoclonal
antibody
Brineura Cerliponase
alfa
TPP1
enzyme
Dosage form, presentation, and route of administration
Solution in pre-lled autoinjector cartridge and vial; subcutaneous injection
Solution in pre-lled syringe; subcutaneous injection
Solution in vial; intravitreal injection
Solution in vial; intravitreal injection
Lyophilized powder for reconstitution; intravenous infusion
Solution in vial; intravenous infusion
Solution in vial; intraventricular injection
Storage stability requirements according to product label Excipients
Refrigeration (2–8°C); protected from light
Zinc, m-cresol, glycerol, polysorbate 20, and water for injection USP
Refrigeration (2–8°C); protected from light
Acetate, polysorbate 20, sodium, sorbitol, and water for injection USP
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C); protected from light
Refrigeration (2–8°C); protected from light
Histidine HCl, trehalose dihydrate, polysorbate 20
Sodium phosphate, NaCl, polysorbate 20, and sucrose
L-histidine, polysorbate 80, and sucrose (140mg)
L-histidine, polysorbate 80, sucrose, and water for injection USP
Freezer (−25°C to
−15°C); protected from light
CaCl
dihydrate,
2
MgCl
2
hexahydrate, KCl, NaCl, sodium phosphate dibasic heptahydrate, sodium phosphate monobasic, monohydrate, and water for injection USP
(continued)
15.4 Devices forAdministration ofBiological Products andPerformance Testing
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227
Table 15.1
Brand name
Oxervate Cenegermin Nerve
Avonex Interferon
TNF-α tumor necrosis factor-alpha, VEGF vascular endothelial growth factor, HER2 human epi- dermal growth factor receptor 2, G-CSF granulocyte colony-stimulating factor, PD-1 programmed death receptor-1, TPP1 tripeptidyl peptidase-1, HPMC hydroxypropylmethyl cellulose, PEG poly­ethylene glycol
(continued)
Active ingredient
beta-1a
Mechanism
of action
and
therapeutic
class
Growth
factor
Interferon
beta;
immune
modulator
Dosage form, presentation, and route of administration
Solution in vial; ophthalmic solution eye drop
Lyophilized powder for reconstitution; intramuscular injection
Solution in prelled autoinjector; intramuscular injection
Storage stability requirements according to product label Excipients
Freezer (−20°C)
Refrigeration (2–8°C); protected from light
Disodium hydrogen phosphate anhydrous, HPMC, L-methionine, mannitol, PEG 6000, sodium dihydrogen phosphate dihydrate, trehalose dihydrate, and water for injection
Albumin, NaCl, dibasic sodium phosphate, monobasic sodium phosphate
Sodium acetate trihydrate, glacial acetic acid, arginine HCl, polysorbate 20, and water for injection
In addition, biological products are administered by injection because of their low bioavailability when administered by other routes, including oral. Intravenous, intramuscular, and subcutaneous routes are used in the treatment of cancer, diabe­tes, and some chronic inammatory diseases. For ophthalmic diseases, the intravit­real route is used to treat macular degeneration by injection, while topical eye drops are used in the treatment of neurotrophic keratitis. Oxerbate® solution is contained in a vial, and the product provides a pipette that connects to the vial for product administration as eye drops. Cerliponase alfa (Brineura®) is delivered into the cere­brospinal uid by intraventricular infusion. The product also provides a catheter and a reservoir necessary for drug delivery in clinical settings. Finally, the pulmonary route is used to deliver insulin in a pre-loaded single-use dry powder inhaler (Afrezza®) and the enzyme dornase alfa by nebulization (Pulmozyme®).
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Fig. 15.1 Example containers and devices used for administration of therapeutic biological prod­ucts. (a) solution contained in a vial, (b) syringe for administration of solutions, (c) solution con­tained in a prelled syringe, and (d) solution contained in an autoinjector
15 Drug Product Design andDelivery ofBiologics
The FDA recommends that all glass syringes meet the ISO 11040-4 standard. Among functional performance tests applicable to syringes and related injectors are seal integrity testing, glide, break, and separation force, extractables or leachables, ease of assembly, validation of graduation markings, and dead space. Another rec­ommendation for the injector design is to allow for appropriate visualization of particulate matter or discoloration of the solution.
15.5 Characterization andPerformance Testing ofBiologics
The Biologics License Application (BLA) is submitted to the FDA to request per­mission to introduce a biologic product into commerce and requires information on the applicant, the product and manufacturing, preclinical and clinical studies, and labeling. BLA must indicate the name, source, and characterization of the produc­tion cell line or the procedures used to obtain the transgenic animal or plant. The purication process must be described to prevent introducing or eliminating pyro­gens and viruses.
Biologics include proteins whose biological function depends on their often complex three-dimensional structure to interact with their therapeutic targets, and conformational changes can result in loss of activity and therapeutic ineffectiveness.
15.6 Biosimilars
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Different factors can impact protein structure and therefore, biologics tend to be unstable chemically and physically. The protein’s structure can be modied or degraded by changes in pH, oxidative or osmotic stress, and ionic strength. In addi­tion, proteins can undergo degradation when exposed to light, temperature, and agi­tation or shear. The selection of appropriate excipients, such as buffers, surfactants, cryoprotectants, and lyoprotectants, contribute to maintaining the protein’s physical and chemical stability during processing and storage.
The determination of the structural integrity of the therapeutic biologic requires different characterization techniques to show that the protein has not fragmented, aggregated, or unconjugated during processing and storage. Physical stability can be measured by the protein’s aggregation when forming larger particles (e.g., high molecular weight species). Chromatography (HPLC or size exclusion), and mass spectroscopy can identify protein degradation products and modications like gly­cation or deamidation. Molecular techniques like Western blot can also be used to determine physical stability. These techniques are also used in pharmacokinetic studies.
The specicity of the biologic to its target is studied invitro by immunological techniques like enzyme-linked immunosorbent assay (ELISA) or ow cytometry, while potency is tested invivo in an appropriate animal model.
229
15.6 Biosimilars
Biological products made from the same types of sources and having the same treat­ment risks and benets as the biological reference product are referred to as biosimi- lars. According to the FDA, biosimilars are “highly similar” to the original product but not identical, due to minor differences that may occur between batches. Biosimilars are similar to generic small molecule drugs in that they undergo an abbreviated approval process as compared to an innovator or brand product.
Similar to FDA’s Orange Book of approved small molecule drug products, origi­nal biologics, licensed biosimilars, and interchangeable products are registered in the FDA’s Purple Book: Lists of Licensed Biological Products with Reference Product Exclusivity and Biosimilarity or Interchangeability Evaluations database. Interchangeable products are those that can be directly substituted for the reference product because they count on the support to show the product produces the same clinical result. For example, according to this database, Humira® (adalimumab) has one interchangeable product (Cyltezo®) and eight biosimilars. The Purple Book database also includes licensed vaccines, toxins, products derived from human blood and plasma, allergens, and gene therapy.
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15 Drug Product Design andDelivery ofBiologics
Futher Reading
Suggested readings for the student include the following texts:
Muralidhara BK, Wong M.Critical considerations in the formulation development of parenteral
biologic drugs. Drug Discov Today. 2020a;25(3):574–81. Muralidhara BK, Wong M. Critical considerations in the formulation development of paren-
teral biologic drugs. Drug Discov Today. 2020b;25(3):574–81. https://doi.org/10.1016/j.
drudis.2019.12.011.
US Food and Drug Administration (FDA). Purple book database of licensed biological products (6
February 2018). Available at https://www.fda.gov/about- fda/center- biologics- evaluation- and-
research- cber/what- are- biologics- questions- and- answers. Accessed 14 Aug 2023.
US Food and Drug Administration (FDA). What are “Biologics” questions and answers (9 August
2023). Available at https://purplebooksearch.fda.gov/. Accessed 14 Aug 2023.
Williams RO III. Improved formulations to enable stable delivery of biologics. BioPharm Int.
2022;35(7):46–9. Yi-Heng Percival Zhang and others. Biomanufacturing: history and perspective. J Ind Microbiol
Biotechnol. 2017;44(4–5):773–84. https://doi.org/10.1007/s10295- 016- 1863- 2.
Index
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A
Absolute bioavailability, 17 Absorption, 6, 14, 26, 51, 75, 93, 118, 145,
153, 172, 197, 216, 222 Absorption base, 161 Absorption rate, 17 Abuse (FDA), 88 Adhesion, 56, 163–166, 176, 202, 210 Adhesive layer, 163–165, 176 Aerodynamic diameter, 199, 200, 209, 213 Aggregation, 113–114, 116–117, 121, 122,
125, 127, 139, 147, 199, 224, 229 Air jet milling, 209 Air jet nebulizer, 198, 201–203 Amorphous, 33–36, 40, 66–70, 104 Amorphous solid dispersion (ASD), 33, 34,
44, 67, 70 Antibody-drug conjugates (ADCs), 223 Antioxidants, 42, 80, 98, 102, 105, 138, 192,
208, 217, 218 Anti-tacking agent, 57 Apparent partition coefcient, 30 Area-under-the-curve (AUC), 16, 17, 21 Arrhenius equation, 44–45 Association colloids, 119 Atomization, 34, 201, 202, 204–207, 209, 219
B
Backing layer, 164, 176, 177 BCS Class II, 32 Binder, 54, 55, 57, 59 Bingham/plastic ow, 115 Bioavailability, 7, 15, 17, 18, 20, 26, 28, 29,
33, 67, 69–71, 93, 118, 120, 144,
145, 175, 184, 227
Bioequivalence, 7, 18, 20, 21 Biological products, 21, 209, 222–229 Biologic license application (BLA), 21, 228 Biologics, 19, 21, 197, 222–229 Biopharmaceutics, 14–21 Biopharmaceutics classication system (BCS),
18, 32, 53, 69 Biosimilars, 229 Biotechnology, 222, 223 Brownian motion, 112, 119, 120, 200 Buccal administration, 172, 174 Bulk density, 38, 54 Bulking agent, 57, 59, 105, 224
C
Cake, 105, 113, 114, 224 Cake (lyophilization), 105 Capsule, 19, 43, 49–71, 74, 78, 82, 187,
211, 213 Carrier-based systems (DPIs), 209 Case studies, 2, 3, 8–10 Central compartment, 16, 17 Chelating agents, 98, 102, 144 Chemical stability, 6, 8, 40, 116, 229 Chronotherapy, 86 Circadian rhythm, 86 Coalescence, 134–136, 139, 147 Coarse dispersions, 111, 112 Cocoa Butter, NF, 188, 189, 194 Cold ow, 163, 165 Colloidal dispersion, 111, 118–120, 138–139 Colorant, 51, 57, 59, 62, 127, 177, 178 Comminution, 116 Completely miscible, 95 Compression coating, 84–86
© American Association of Pharmaceutical Scientists 2024 A. D. Brunaugh et al., Essential Pharmaceutics, AAPS Introductions in the Pharmaceutical Sciences 12, https://doi.org/10.1007/978-3-031-52520-9
231
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Index
Compression molding, 194 Conducting airway, 198, 200 Contact angle, 123, 124 Content uniformity, 61, 64, 220 Controlled release, 6, 54, 59, 67, 77, 80, 82,
162, 186 Co-solvent, 27, 93, 96, 101, 102, 208, 217 Cracking (tablet coating), 56, 63 Cream, 33, 149, 160–162, 167, 186, 187 Critical micelle concentration (CMC), 19, 20,
100, 101, 125, 126, 177, 178 Cryoprotectant, 105, 224, 229 Crystalline, 27, 32–37, 40, 43, 44, 67, 68,
104, 189 Crystalline solid dispersion, 67, 68 Cyclodextrin, 27, 69, 99, 100
D
Dead volume, 202, 203 Deocculated suspension, 113, 114 Delayed release dosage form, 75, 76, 87 Depot injections, 104 Dermis, 103, 153, 154, 156, 159 Device metered (DPIs), 211 Differential scanning calorimetry (DSC),
35–37, 67 Diffusion, 15, 16, 29, 31, 32, 77–79, 81, 120,
154–159, 164, 166, 173, 193, 201 Diffusion (particle deposition), 200 Diffusion cell, 157 Diffusion coefcient, 29, 32, 96, 120, 155,
157, 158 Diluent, 54, 57, 59, 177, 210 Disintegrant, 57, 59, 61, 177 Disintegration, 40, 54, 61–65, 175, 177 Dispersed system, 111, 118, 128 Dissociation constant, 26, 28–29 Dissolution, 6, 26, 28–30, 33, 34, 38, 39, 43,
53, 54, 57, 59, 61, 64, 65, 67, 69,
75, 76, 81–83, 86, 87, 93, 95–96,
117, 118, 120, 146, 173, 175, 185,
190, 193, 200, 207 Distribution, 14–16, 29, 30, 39, 45, 93, 202,
212, 219 Donor and receptor compartments, 32 Dosage form, 2, 14, 25, 49, 74, 93, 122, 142,
153, 172, 182, 216, 225 Dose dumping, 77, 87, 166 Drug, 1, 14, 25, 49, 74, 93, 118, 132, 142, 153,
172, 182, 196, 216, 222 Drug-in-adhesive (DIA), 164, 166 Drug monograph, 29, 61
Drug products, 3, 5–8, 10, 14–21, 25–46, 61,
70, 75, 88, 105, 107, 128, 160, 172,
178–179, 204, 219, 220, 222–229 Dry granulation, 54, 55 Dry gum method, 138 Dry powder inhalers (DPIs), 197, 198,
209–212, 227 Dynamic Vapor Sorption (DVS), 44
E
Edge lift, 163 Electrostatic stabilization, 125 Emulsifying agent (emulsier), 59, 132–138,
140, 188 Emulsion, 34, 59, 111, 125, 132–140, 142,
147, 160–162 Emulsion cracking/breaking, 140 Emulsion creaming, 140 Emulsion settling, 140 Enantiomers, 45, 46 Enemas, 184 Epidermis, 153, 154, 156, 159, 160, 167 Epimerization, 44 Eutectics, 38, 67, 104, 189, 192 Excipients, 10, 26, 27, 29, 33, 34, 38, 39, 43,
49, 52–61, 64, 68, 69, 76, 78, 81,
82, 84, 87, 93, 96–102, 105,
121–127, 134, 138, 140, 149, 153,
165, 167–169, 174, 176–178,
192–193, 207–210, 217, 218, 222,
224, 225, 229 Extended release dosage forms, 54, 75,
77, 78, 87 Extrinsic property, 29
F
Factory metered/pre-metered (DPIs), 211 FDA approved label, 20, 166 Fick’s rst law, 31, 157 Fick’s law, 78, 81, 120, 154–155, 165, 173 Film, 43, 49, 58, 75, 78, 82, 132, 135, 136,
140, 164, 175–178, 211 Film coating, 56–58, 63, 64, 75, 78, 79, 82–84 Film coating polymer, 58, 83 Fine particle fraction (FPF), 213 First order release, 82, 166 Flipped classroom, 1–11 Flocculation, 113–114, 123, 127 Floccule, 113 Food effect, 70–72 Friability, 61, 66
Index
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233
Fusion method (ointment preparation), 162 Fusion proteins, 223, 225, 226
G
Gel, 51–53, 79, 80, 125, 136, 146, 147, 163,
164, 176, 184, 192 Gelatin, 49–51, 137, 163, 178, 190 Generic drug, 18–21 Gibbs free energy, 33, 35 Glass transition temperature, 33, 37,
50, 58, 104 Glidant, 58, 59 Glycerinated gelatin, 188, 190, 194 Granule, 51, 53–55, 69, 84
H
High performance liquid chromatography
(HPLC), 40, 41, 64, 229 High pressure homogenization, 40, 121 Hopper, 52, 54, 69 Hot melt extrusion, 34, 58, 67, 69, 70, 78 Hot-melt method, 165 Hydrocarbon base, 161 Hydrogel, 79, 162 Hydrogenated fatty bases, 189 Hydrolysis, 41, 42 Hydrophile-lipophile balance (HLB) system,
135, 136, 140, 147 Hydrophilic matrix system, 78–81 Hydroxyl value, 189, 190 Hygroscopicity, 38, 43–44, 190, 199
I
Immediate release, 31, 53, 58, 61, 75, 77,
86, 87, 177 Incorporation method (ointment
preparation), 162 Inertial impaction (particle deposition),
199, 200 Information literacy skills, 1, 4, 5, 10 Injectability, 103–104 Injectable administration, 101 Insoluble (hydrophobic) matrix
systems, 81, 82 Intercellular route (passive diffusion), 156 Intramuscular (IM) administration, 102 Intrauterine devices (IUDs), 186, 187 Intravenous (IV) administration, 102 Intravitreal administration, 103
Intravitreal injection, 93, 103, 142, 226 Intrinsic property, 27, 29, 153 Investigational New Drug (IND)
application, 19 Ionization, 6, 26, 28, 30, 31, 94, 115, 185 Iontophoresis, 159 Isotonic, 97, 101, 103
L
Large-volume parenterals, 107 Learning objectives, 5, 6, 9 Lipophilic/hydrophilic, 28–31, 33, 34, 51,
79–82, 100, 119, 122, 123, 125,
127, 135–137, 139, 145, 147–149,
155, 156, 159, 161, 173, 188, 193 Liposomes, 118, 139 Lotion, 160 Lubricant, 58, 59, 192 Lyophilic colloids, 119 Lyophilization, 54, 104, 105, 224 Lyophobic colloids, 119 Lyoprotectant, 105, 224, 229
M
Macrophage phagocytosis, 200 Mass median aerodynamic diameter
(MMAD), 212, 213 Matrix system (vaginal rings), 186 Matrix-type patch, 164 Maximum plasma concentration (C
16, 17, 21 Median diameter, 39 Melting point, 26, 33, 35–38, 67, 104, 161,
163, 188–192, 194 Melt-molding, 194 Membrane controlled systems, 78, 81 Membrane permeability, 28, 31–32 Metered-dose, 176, 178, 213, 219 Micelles, 100, 101, 119, 125, 126 Microbiological stability, 6, 40 Microemulsions, 138 Microneedles, 159, 160 Miscibility, 95, 188 Modied release, 6, 29, 54, 58, 59, 74–88 Monoclonal antibodies (mAbs), 222, 223,
225, 226 Monolithic, 78 Mottling (tablet coating), 56, 62 Mucociliary escalator, 199, 200 Multiparticulates, 78, 82
max
),