AESKULISA DGP-A, AESKULISA DGP-G,AESKULISA DGP-CHECK

K132082 · Aesku Diagnostics · MST · Dec 5, 2013 · Immunology

Device Facts

• Record ID: K132082
• Device Name: AESKULISA DGP-A, AESKULISA DGP-G,AESKULISA DGP-CHECK
• Applicant: Aesku Diagnostics
• Product Code: MST · Immunology
• Decision Date: Dec 5, 2013
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 866.5750
• Device Class: Class 2

Indications for Use

AESKULISA DGP-Check is an in-vitro diagnostic device This solid phase enzyme immunassay employs synthetic, deemicated gliadin-derived pertides for the combined seniqualitative detation of 194 and 195 and 195 and 195 and its deamical desirical d Gliadin-specific peptides (DGP) in human serum. The assay is an aid in the diac disease (gluter-sensitive enteropatiy) and should be used in conjunction with ather serological tests and clinical findings. AESKULISA DGP-G is an in-vitro diagnostic device This salid phase enzyme immuncessay employs synthetic, deamicated gliadin-derived peptides for the semiquantitative and qualitative detection of IgG antibodies against deamidded Gliadin-specific peptides (DGP) in human serum. The assy is an aid in the diegnosis of celies disease (gluter-sensitive enteropedly) and should be used in conjunction with other serological tests and clinical findings. AESKULISA DGP-A is an in-vitro diagnostic device. This solid phase enzyme immunossay employs synthetic, deamidated gliadin-derived peptides for the semiqualitative and qualitative detection of 1gA antibodies against deaminded Gliadin-specific peptides (DGP) in human serum. The assay is an aid in the diagnosis of cellac disease (gluter-sensitive enteropathy) and should be used in corjunction with other serological tests and clinical findings.

Device Story

AESKULISA DGP-A, DGP-G, and DGP-Check are solid-phase indirect noncompetitive enzyme immunoassays (ELISA) used to detect antibodies against deamidated gliadin-derived peptides (DGP) in human serum. The device utilizes 96-well microtiter plates coated with synthetic deamidated gliadin peptides. Patient serum is diluted 1:100 and added to the wells; specific antibodies bind to the immobilized antigen. A goat anti-human IgA/IgG-HRP conjugate is added, followed by a TMB chromogenic substrate. The resulting color intensity, measured via spectrophotometric microtiter plate reader at 450 nm, is proportional to the antibody concentration. The assay is performed in a clinical laboratory setting. Results are interpreted semiquantitatively against a 6-point calibrator curve (0-300 U/mL) or qualitatively using a cut-off calibrator. The output assists clinicians in diagnosing celiac disease when used alongside other serological tests and clinical findings.

Clinical Evidence

No clinical data provided in the document.

Technological Characteristics

Solid-phase indirect noncompetitive enzyme immunoassay. Components: 96-well microtiter plates coated with synthetic deamidated gliadin peptides, HRP-conjugated goat anti-human IgA/IgG, TMB substrate, and 1M HCl stop solution. Requires spectrophotometric microtiter plate reader (450 nm). Quantitative/semi-quantitative output via 4-parameter Lin-Log fit. Standardized via internal lot-to-lot comparison (no international standards).

Indications for Use

Indicated for the semiquantitative and qualitative detection of IgA, IgG, or combined IgA/IgG antibodies against deamidated gliadin-derived peptides (DGP) in human serum as an aid in the diagnosis of celiac disease (gluten-sensitive enteropathy).

Regulatory Classification

Identification

A radioallergosorbent immunological test system is a device that consists of the reagents used to measure by immunochemical techniques the allergen antibodies (antibodies which cause an allergic reaction) specific for a given allergen. Measurement of specific allergen antibodies may aid in the diagnosis of asthma, allergies, and other pulmonary disorders.

Special Controls

*Classification.* Class II (special controls). The device, when intended to detect any of the allergens included in Table 1 in this paragraph, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 866.9. Table 1—Class II Exempt Allergens Under § 866.5750—Radioallergosorbent (RAST) Immunological Test Systems Allergen code Allergen product Source (taxonomical name) Grass Pollens g1 Sweet vernal grass Anthoxanthum odoratum. g3 Cocksfoot grass, Orchard grass Dactylis glomerata. g4 Meadow fescue Festuca elatior. g5 Rye-grass (perennial rye grass) Lolium perenne. g7 Common reed (common reed grass) Phragmites communis. g8 Meadow grass, Kentucky blue (June grass) Poa pratensis. g9 Redtop, Bentgrass Agrostis stolonifera ,Agrostis gigantea (Agrostis alba ). g11 Brome grass Bromus inermis. g12 Cultivated rye (cultivated rye grass) Secale cereale. g13 Velvet grass Holcus lanatus. g14 Cultivated oat (cultivated oat grass) Avena sativa. g15 Cultivated wheat (cultivated wheat grass) Triticum aestivum (Triticum spp.). g16 Meadow foxtail (meadow foxtail grass) Alopecurus pratensis. g17 Bahia grass Paspalum notatum. g24 Wheat grass, Western Agropyron smithii (Elymus smithii ). g30 Bluegrass, annual Poa annua. g70 Wild rye grass Elymus triticoides Elymus condensatus. g71 Canary grass Phalaris arundinacea. g201 Barley, cultivated Hordeum vulgare. g202 Maize, corn (cultivated corn) Zea mays. g203 Salt grass Distichlis spicata. g204 False oat-grass Arrhenatherum elatius. g216 Cyn d 1 Cynodon dactylon. g701 Phl p 1.0102, Phl p 5.0101 Phleum pratense. g702 Phl p 7.0101 Phleum pratense. g703 Phl p 12.0101 Phleum pratense. Weed Pollens w2 Western ragweed Ambrosia psilostachya. w4 False ragweed Ambrosia acanthicarpa (Franseria acanthicarpa ). w5 Wormwood Artemisia absinthium Artemisia annua. w6 Mugwort Artemisia vulgaris. w7 Marguerite, ox-eye daisy Chrysanthemum leucanthemum. w8 Dandelion Taraxacum vulgare ,Taraxacum officinale. w9 Plantain (English), Ribwort Plantago lanceolata. w10 Goosefoot, lamb's quarters Chenopodium album. w11 Saltwort (prickly), Russian thistle Salsola kali (Salsola pestifer ). w12 Goldenrod Solidago virgaurea (Solidago spp.). w13 Cocklebur, common Xanthium commune. w14 Common pigweed (rough pigweed) Amaranthus retroflexus. w15 Scale, Lenscale Atriplex lentiformis. w16 Rough marsh elder Iva ciliate ,Iva annua. w17 Firebush (Kochia) Kochia scoparia. w18 Sheep sorrel Rumex acetosella. w19 Wall pellitory Parietaria officinalis. w20 Nettle (Common stinging nettle) Urtica dioica. w21 Wall pellitory Parietaria judaica. w22 Japanese hop (careless weed) Humulus japonicas (Humulus scandens ). w23 Yellow dock, Yellow dockweed Rumex crispus. w24 Spiny pigweed Amaranthus spinosus. w27 Carnation Dianthus spp. w28 Rose Rosa rugosa. w33 Clover Trifolium pratense. w35 Mexican tea Chenopodium ambrosioides. w36 Rabbit bush Ambrosia deltoidea (Franseria deltoides ). w37 Salt bush, annual Atriplex wrightii. w39 Water hemp, Western Amaranthus rudis (Acnida tamariscina ). w41 Burrobrush Hymenoclea salsola. w42 Poverty weed Baccharis neglecta. w43 Common sagebrush Artemisia tridentata. w45 Alfalfa Medicago sativa. w46 Dog fennel Eupatorium capillifolium. w53 Geranium Geranium spp. w67 Groundsel bush Baccharis halimifolia. w69 Iodine bush Allenrolfea occidentalis. w70 Ragweed, slender Ambrosia confertiflora. w75 Wing scale (wingscale) Atriplex canescens. w82 Careless weed Amaranthus palmeri ,Amaranthus hybridus. w90 Japanese hop Humulus japonicas (Humulus scandens ). w203 Rape (rape pollen) Brassica napus. w204 Sunflower Helianthus annuus. w206 Camomile Matricaria chamomilla. w207 Lupin Lupinus spp. w210 Sugar-beet Beta vulgaris. w211 Par j 2.0101 Parietaria judaica. w231 Art v 1 Artemisia vulgaris (Mugwort). w232 Sal k 1 Salsola kali. w233 Art v 3 Artemisa vulgaris (LTP, Mugwort). w234 Pla l 1 Plantago lanceolata. w235 Che a 1.0101 Chenopodium album. w236 Mer a 1.0101 Mercurialis annua. a753 Art v 1 Artemisia vulgaris (Mugwort weed). Tree Pollens t1 Box-elder (Maple) Acer negundo ,Acer saccharum. t2 Gray alder, speckled alder (alder) Alnus incana. t4 Hazel, hazelnut Corylus avellana ,Corylus americana. t5 American beech (beech) Fagus grandifolia (Fagus americana ). t6 Mountain juniper, Mountain cedar Juniperus ashei (Juniperus sabinoides ). t8 Elm Ulmus americana. t9 Olive Olea europaea. t10 Walnut Juglans californica ,Juglans nigra. t11 Maple leaf sycamore, London plane, Plane tree Platanus acerifolia. t61 Sycamore Platanus occidentalis. t12 Willow Salix caprea ,Salix nigra. t14 Cottonwood (Eastern Cottonwood/Black Cottonwood) Populus deltoides. t15 White ash Fraxinus americana. t16 White pine Pinus strobus. t18 Eucalyptus, gum-tree Eucalyptus globulus (Eucalyptus spp.). t19/t26 Acacia Acacia longifolia (Acacia spp.). t20 Mesquite Prosopis glandulosa/ Prosopis juliflora. t21 Melaleuca, cajeput tree Melaleuca quinquenervia (Melaleuca leucadendron ). t22 Pecan, hickory Carya illinoinensis (Carya pecan ). t23 Italian/Mediterranean/funeral cypress Cupressus sempervirens. t24 Japanese cypress Chamaecyparis obtusa (Chamaecyparis spp.). t25 Ash Fraxinus excelsior. t27 Maple, red Acer rubrum. t29 Acacia Acacia spp. t30 Birch, white Betula populifolia. t32 Willow, black Salix nigra. t33 Ash, Arizona Fraxinus velutina. t35 Cedar, salt Tamarix gallica. t37 Bald cypress (white bald cypress) Taxodium distichum. t38 Elm, Chinese/Siberian Ulmus pumila. t40 Hazelnut tree Corylus americana. t41 White hickory Carya alba (Carya tomentosa ). t42 Oak, red Quercus rubra. t43 Loblolly pine Pinus taeda. t44 Hackberry Celtis occidentalis. t45 Cedar elm Ulmus crassifolia. t47 Juniper, one seed Juniperus monosperma. t48 Pine, lodgepole Pinus contorta. t49 Pine, ponderosa Pinus ponderosa. t50 Beech, European Fagus sylvatica. t51 Tree of Heaven Ailanthus altissima. t52 Western white pine Pinus monticola. t54 Russian olive Elaeagnus angustifolia. t55 Scotch broom Cytisus scoparius. t56 Bayberry Myrica cerifera. t57 Red cedar Juniperus virginiana. t60 Western juniper Juniperus occidentalis. t61 Sycamore Platanus occidentalis. t70 Mulberry (white mulberry) Morus alba. t71 Red mulberry Morus rubra. t72 Queen palm Arecastrum romanzoffiamon. t73 Australian pine Casuarina equisetifolia. t77 Oak mix (red, white, black) Quercus spp. t80 Japanese cypress Chamaecyparis obtusa. t81 Japanese alder Alnus japonica. t83 Mango tree Mangifera indica. t90 Walnut, black Juglans nigra. t96 Poplar, white (poplar) Populus alba. t103/t218 Virginia live oak (live oak) Quercus virginiana. t105 Pepper tree Schinus molle. t110 Orange tree Citrus sinensis. t201 Spruce, Norway spruce Picea abies (Picea excelsa ). t202 Alder, smooth Alnus incana spp.Rugosa (Alnus rugosa ). t203 Horse chestnut Aesculus hippocastanum. t205 Elder Sambucus nigra. t206 Chestnut Castanea sativa. t207 Douglas fir Pseudotsuga menziesii (Pseudotsuga taxifolia ). t208 Linden Tilia cordata. t209 Horn beam Carpinus betulus. t210 Privet Ligustrum vulgare. t211 Sweet gum Liquidambar styraciflua. t212 Cedar Libocedrus decurrens. t213 Pine Pinus radiata. t214 Date palm Phoenix canariensis. t215 Lilac Syringa vulgaris. t217 Pepper tree Schinus molle. t217 Red alder Alnus rubra. t218 Virginia live oak Quercus virginiana. t218 Bayberry (bayberry/sweet gale) Myrica gale. t219 Palo verde Cercidium floridum. t219 Red cedar Juniperus virginiana. t220 Bet v 4 Betula verrucosa (Birch). t221 Bet v 2.0101, Bet v 4 Betula verrucosa (Birch). t222 Cypress (Arizona cypress) Cupressus arizonica. t223 Oil palm Elaeis guineensis. t224 Ole e 1 Olea europaea. t225 Bet v 6 Betula verrucosa (Birch). t226 Cup a 1 Cupressus arizonica. t227 Ole e 7 Olea Europaea. t228 Aspen, quaking Populus tremuloides. t229 Eastern hemlock Tsuga canadensis. t230 Redwood (sequoia) Sequoia sempervirens. t232 Pussy willow Salix discolor. t240 Ole e 9.0101 Olea Europaea. t241 Pla a 1.0101 Platanus acerifolia. t242 Pla a 2 Platanus acerifolia. t243 Pla a 3.0101 Platanus acerifolia. t244 Cor a 1.0103 Corylus avellana. t245 Aln g 1.0101 Alnus glutinosa. t246 Cry j 1 Cryptomeria japonica. t280 Locust tree Robinia pseudoacacia. t401 Brazilian peppertree Schinus terebinthifolius. t402 Mastic tree Pistacia lentiscus. t404 Tree of heaven Ailanthus altissima. t406 Date palm Phoenix dactylifera. a482 Ole e 1 Olea europaea (Olive Oil). Mites d207 Blo t 5.0101 Blomia tropicalis. d208 Lep d 2.0101 Lepidoglyphus destructor. Microorganisms, Molds, Yeast m1 Penicillium chrysogenum (Penicillium notatum ) Penicillium chrysogenum (Penicillium notatum ). m2 Cladosporium herbarum (Hormodendrum ) Cladosporium herbarum (Hormodendrum ). m3 Aspergillus fumigatus Aspergillus fumigatus. m4 Mucor racemosus Mucor racemosus. m5 Candida albicans Candida albicans. m7 Botrytis cinerea Botrytis cinerea. m8 Drechslera halodes (Setomelanomma rostrata, Helminthosporium halodes, Helminthosporium interseminatum ) Drechslera halodes (Setomelanomma rostrata, Helminthosporium halodes. m9 Fusarium moniliforme (Fusarium proliferatum ) Fusarium moniliforme (Fusarium proliferatum ). m10 Stemphylium botryosum Stemphylium herbarum (Stemphylium botryosum ). m11 Rhizopus nigricans Rhizopus nigricans. m12 Aureobasidium pullulans Aureobasidium pullulans. m13 Phoma betae Phoma betae. m14 Epicoccum purpurascens Epicoccum purpurascens (Epicoccum nigrum ). m15 Trichoderma viride Trichoderma viride. m16 Curvularia lunata Curvularia lunata ,Curvularia specifera (K923044 ). m17 Cladosporium fulvum Cladosporium fulvum. m18 Fusarium culmorum Fusarium culmorum. m19 Aspergillus versicolor Aspergillus versicolor. m20 Mucor mucedo Mucor mucedo. m21 Aspergillus clavatus Aspergillus clavatus. m22 Micropolyspora faeni Saccharopolyspora rectivirgula (Micropolyspora faeni ). m23 Thermoactinomyces vulgaris Thermoactinomyces vulgaris. m24 Stachybotrys atra Stachybotrys chartarum (Stachybotrys atra ). m24 Paecilomyces spp Paecilomyces spp. m25 Aspergillus versicolor Aspergillus versicolor. m25 Penicillium brevicompactum Penicillium brevicompactum. m26 Cladosporium cladosporioides Cladosporium cladosporioides. m26 Penicillium citrinum Penicillium citrinum. m27 Penicillium spp Penicillium spp. m29 Aspergillus repens Aspergillus repens. m30 Penicillium roqueforti Penicillium roqueforti. m32 Cladosporium cladosporioides Cladosporium cladosporioides. m34 Serpula lacrymans Serpula lacrymans. m36 Aspergillus terreus Aspergillus terreus. m37 Trichophyton mentagrophytes Trichophyton mentagrophytes. m40 Aspergillus amstelodami Aspergillus amstelodami. m43 Saccharomyces Carlsberg Saccharomyces carlsbergensis. m44 Saccharomyces cerevisiae Saccharomyces cerevisiae. m45 Hormodendrum hordei Hormodendrum hordei. m46 Bipolaris spicifera Bipolaris spicifera. m47 Aspergillus nidulans Aspergillus nidulans. m48 Aspergillus oryzae Aspergillus oryzae. m49 Fusarium oxysporum Fusarium oxysporum. m50 Micropolyspora faeni Saccharopolyspora rectivirgula (Micropolyspora faeni ). m51 Thermoactinomyces vulgaris Thermoactinomyces vulgaris. m53 Microspora canis Microsporum canis (Microspora canis ). m54 Aspergillus flavus Aspergillus flavus. m63 Helminthosporium intersemin Helminthosporium intersemin. m66 Mucor plumbeus Mucor plumbeus. m67 Mycogone Mycogone perniciosa. m68 Nigrospora oryzae Nigrospora oryzae. m69 Rhodotorula Rhodotorula rubra (Rhodotorula mucilaginosa ). m70 Malassezia furfur (Pityrosporum orbiculare ) Malassezia furfur (Pityrosporum orbiculare ). m71 Spondylocladium Spondylocladium spp. m72 Epidermophyton Epidermophyton floccosum. m73 Epicoccum nigrum Epicoccum purpurascens (Epicoccum nigrum ). m80 Staphylococcal enterotoxin A (Sta a SEA ) Staphylococcus aureus. m80 Helminthosporium spp Helminthosporium spp. m81 Staphylococcal enterotoxin B (Sta a SEB ) Staphylococcus aureus. m88 Stemphylium solani Stemphylium solani. m93 Gliocladium fimbriatum Gliocladium fimbriatum. m94 Phycomyces blakesleeanus Phycomyces blakesleeanus. m201 Tilletia tritici (Ustilago nuda, Ustilago tritici ) (Barley smut) Tilletia tritici (Ustilago nuda, Ustilago tritici ). m202 Acremonium kiliense (Cephalosporium acremonium ) Acremonium kiliense (Cephalosporium acremonium ). m203 Trichosporon pullulans Trichosporon pullulans. m204 Ulocladium chartarum Ulocladium chartarum. m205 Trichophyton rubrum Trichophyton rubrum. m207 Aspergillus niger Aspergillus niger. m208 Chaetomium globosum Chaetomium globosum. m209 Penicillium frequentans Penicillium glabrum (Penicillium frequentans ). m209 Stachybotrys chartarum Stachybotrys chartarum (Stachybotrys atra ). m210 Trichophyton mentagrophytes var. goetzii Trichophyton mentagrophytes var. goetzii. m211 Trichophyton mentagrophytes var. interdigitale Trichophyton mentagrophytes var. interdigitale. m211 Oat smut Ustilago avenae. m212 Micropolyspora faeni Saccharopolyspora rectivirgula (Micropolyspora faeni ). m212 Geotrichum candidum Geotrichum candidum. m213 Bermuda grass smut Ustilago cynodontis. m214 Johnson grass smut Sphacelotheca cruenta. m215 Corn smut Ustilago maydis. m218 Asp f 1.0101 Aspergillus fumigatus. a3050 Asp r 1 Aspergillus restrictus. m219 Asp f 2 Aspergillus fumigatus. m220 Asp f 3.0101 Aspergillus fumigatus. m221 Asp f 4 Aspergillus fumigatus. m222 Asp f 6.0101 Aspergillus fumigatus. m223 Staphylococcal enterotoxin C (Sta a SEC ) Staphylococcus aureus. m224 Staphylococcal enterotoxin D (Sta a SED ) Staphylococcus aureus. m226 Staphylococcal enterotoxin TSST (Sta a TSST ) Staphylococcus aureus. m227 Malassezia spp. (Pityrosporum spp.) Malassezia spp. (Pityrosporum spp.). m228 Aspergillus flavus. m229 Alt a 1.0101 Alternaria alternata (Alternaria tenuis ). m230 Alt a 6.0101 Alternaria alternata (Alternaria tenuis ). m231 Cla h 8.0101 Cladosporium herbarum (Hormodendrum ). m300 Eurotium spp Eurotium spp. m304 Aspergillus oryzae Aspergillus oryzae. m305 Penicillium brevicompactum Penicillium brevicompactum. m309 Aspergillus terreus Aspergillus terreus. m310 Aspergillus nidulans Aspergillus nidulans. m311 Aspergillus flavus Aspergillus flavus. m312 Aspergillus clavatus Aspergillus clavatus. Epidermal & Animal e6 Guinea pig epithelium Cavia porcellus. e7 Pigeon droppings Columba palumbus ,Columba livia. e25 Chicken serum Gallus domesticus (Gallus gallus domesticus; Gallus spp.). e26 Parrot serum Psittacoidea spp. e62 Camel Camelus dromedaries. e70 Goose feathers Anser anser. e71 Mouse epithelium Mus musculus (Mus spp.). e73 Rat epithelium Rattus norvegicus. e74 Rat urine proteins Rattus norvegicus ,Rattus rattus. e75 Rat serum proteins Rattus norvegicus ,Rattus rattus. e76 Mouse serum proteins Mus musculus (Mus spp.). e77 Budgerigar droppings Melopsittacus undulatus. e78 Budgerigar feathers Melopsittacus undulatus. e79 Budgerigar serum proteins Melopsittacus undulatus. e80 Goat epithelium Capra hircus. e81 Sheep epithelium Ovis aries (Ovis spp.). e82 Rabbit epithelium Oryctolagus cuniculus (Oryctolagus spp.). e83 Swine epithelium Sus scrofa (Sus scrofa domesticus; Sus spp.). e84 Hamster epithelium Cricetus cricetus, Mesocricetus auratus, and Phodopus sungorus. e85 Chicken feathers Gallus domesticus (Gallus gallus domesticus; Gallus spp.). e86 Duck feathers Anas platyrhynchos. e87 Rat epithelium, serum proteins, and urine proteins Rattus norvegicus Rattus rattus. e88 Mouse epithelium, serum proteins, and urine proteins (mouse) Mus musculus (Mus spp.). e89 Turkey feathers Meleagris gallopavo. e90 Budgerigar serum proteins, feathers, and droppings Melopsittacus undulatus. e91 Pigeon serum proteins, feathers, and droppings Streptopelia roseogrisea ,Psittacidae spp. e92 Parrot serum proteins, feathers, and droppings Ara spp. e93 Pigeon serum proteins Streptopelia roseogrisea. e94 Fel d 1.0101 Felis domesticus. a345 Fel d 1 Felis domesticus. e98 Parrot droppings Psittacoidea spp. e101 Can f 1.0101 Canis familiaris (Canis domesticus ). a174 Can f 1 Canis familiaris (Canis domesticus ). e102 Can f 2.0101 Canis familiaris (Canis domesticus ). e196 Parakeet feathers Nymphicus hollandicus. e197 Parakeet droppings Nymphicus hollandicus. e198 Parakeet serum Nymphicus hollandicus. e199 Canary bird serum Serinus canarius. e200 Canary bird droppings Serinus canarius. e201 Canary bird feathers (Canary feathers) Serinus canarius. e202 Reindeer epithelium Rangifer tarandus. e203 Mink epithelium Mustela spp. e204 Bos d 6 Bos domesticus (Bos taurus; Bos spp.). e205 Horse, serum proteins Equus caballus (Equus spp.). e206 Rabbit, serum proteins Oryctolagus cuniculus (Oryctolagus spp.). e208 Chinchilla epithelium Chinchilla laniger. e209 Gerbil epithelium Meriones unguiculatus. e210 Fox epithelium Vulpes vulpes. e211 Rabbit, urine proteins Oryctolagus cuniculus (Oryctolagus spp.). e212 Swine, urine proteins Sus scrofa (Sus scrofa domesticus; Sus spp.). e213 Parrot feathers Ara spp. e214 Finch feathers Lonchura domestica. e215 Pigeon feathers Streptopelia roseogrisea (Streptopelia spp.),Columbia spp. e216 Deer epithelium Dama dama. e217 Ferret epithelium Mustela putorius. e218 Chicken droppings Gallus domesticus (Gallus gallus domesticus; Gallus spp.). e219 Chicken, serum proteins Gallus domesticus (Gallus gallus domesticus; Gallus spp.). e220 Fel d 2, Cat serum albumin Felis domesticus. e221 Can f 3 Canis familiaris (Canis domesticus ) (Dog serum albumin ). e222 Swine serum albumin (Sus s PSA) Sus scrofa (Sus scrofa domesticus; Sus spp.). e225 Lovebird feathers Psittacoidea agapomis. e226 Can f 5.0101 Canis familiaris. e227 Equ c 1.0101 Equus caballus. e228 Fel d 4.0101 Felis domesticus. e230 Equ c 3 Equus caballus. e231 Mus m 1 Mus musculus. Food f9 Rice Oryza sativa. f12 Pea (green pea) Pisum sativum. f15 White bean Phaseolus vulgaris. f19 Cayenne pepper Capsicum frutescens (Capsicum annum ). f21 Sugar cane Saccharum officinarum. f22 Raspberry Rubus idaeus. f26 Pork Sus scrofa (Sus scrofa domesticus; Sus spp.). f29 Watermelon Citrullus lanatus (Citrullus vulgaris ). f31 Carrot Daucus carota. f32 Oyster mushroom Pleurotus ostreatus. f33 Orange Citrus sinensis. f35 Potato Solanum tuberosum. f43 Mother's milk Homo sapiens. f44 Strawberry Fragaria vesca (Fragaria spp.). f45 Yeast, baker's Saccharomyces cerevisiae. f46 Pepper, Red Capsicum annuum. f47 Garlic Allium sativum. f48 Onion Allium cepa. f49 Apple Malus x domestica (Malus spp.). f51 Bamboo shoot Phyllostachys pubescens. f52 Cacao/chocolate Theobroma cacao. f54 Sweet potato Ipomoea batatas. f55 Common millet Panicum miliaceum. f56 Foxtail millet Setaria italica. f57 Japanese millet Echinochloa crus-galli. f58 Pacific squid Todarodes pacificus. f59 Octopus Octopus vulgaris (Octopus spp.). f63 Kefir NA. f67 Parmesan cheese NA. f81 Cheese, cheddar type NA. f82 Cheese, mold type NA. f83 Chicken Gallus domesticus (Gallus gallus domesticus; Gallus spp.). f86 Parsley Petroselinum crispum. f87 Melon Cucumis melo Cucumis melo + Citrullus lanatus. f88 Mutton (lamb) Ovis aries (Ovis spp.). f90 Malt Hordeum vulgare. f92 Banana Musa spp. f93 Cacao Theobroma cacao. f94 Pear Pyrus communis (Pyrus spp.). f97 Yam Dioscorea spp.Dioscorea opposita. f97 Chamomile tea Matricaria chamomilla. f98 Gliadin Triticum aestivum (Triticum spp.). f102 Cantaloupe Cucumis melo var. cantalupensis. f105 Chocolate Theobroma cacao. f109 Cottonseed Gossypium hirsutum. f110 Giant radish Raphanus sativus. f118 Zucchini Cucurbita pepo. f119 Radish Raphanus sativus. f120 Venison Capreolus capeolus. f121 Pinto bean Phaseolus vulgaris. f122 Cheese, American NA. f127 Black-eyed pea Vigna unguiculata. f131 Black Olive Olea europaea. f136 Red beet Beta vulgaris var. conditiva. f139 Goat's Cheese Capra aegagrus. f140 Bran NA. f141 Corn (vegetables) Zea mays. f152 Green bell pepper Capsicum annuum. f155 Brewer's yeast Saccharomyces carlsbergensis. f157 Duck Anas domesticus. f158 Goose Anser anser. f160 Camembert cheese NA. f162 Nectarine Prunus persica var. nucipersica. f163 Kohlrabi Brassica oleracea var. gongylodes. f65 Perch f166 Leek Allium porrum. f170 Cheese (Switzerland) (Swiss cheese) NA. f174 Fig Ficus carica. f177 Cranberry Vaccinium macrocarpon. f179 Raisin Vitis spp. f182 Lima bean Phaseolus lunatus. f198 Flaxseed (bruised grain) Linum usitatissimum. f199 Untreated native milk Bos domesticus (Bos taurus; Bos spp.). f208 Lemon Citrus limon. f209 Grapefruit Citrus paradisi. f210 Pineapple Ananas comosus. f211 Blackberry Rubus fruticosus. f212 Mushroom (champignon) Agaricus hortensis (Agaricus spp.). f213 Rabbit Oryctolagus cuniculus (Oryctolagus spp.). f214 Spinach Spinacia oleracea. f215 Lettuce Lactuca sativa. f216 Cabbage Brassica oleracea var. capitata. f217 Brussels sprouts Brassica oleracea var. gem. f218 Paprika, sweet pepper Capsicum annuum. f219 Fennel seed Foeniculum vulgare. f219 Sage Salvia officinalis. f220 Cinnamon Cinnamomum spp. f221 Coffee Coffea spp. f222 Tea Camellia sinensis. f223 Green olive Olea europaea. f225 Summer squash, pumpkin Cucurbita pepo. f225 Pumpkin Cucurbita maxima. f226 Pumpkin seed Cucurbita pepo. f227 Sugar-beet seed Beta vulgaris. f229 Safflower Seed Carthamus tinctorius. f231 Milk, boiled Bos domesticus (Bos taurus; Bos spp.). f234 Vanilla Vanilla planifolia. f237 Apricot Prunus armeniaca. f241 Gouda cheese NA. f242 Cherry Prunus avium. f244 Cucumber Cucumis sativus. f246 Guar, guar gum Cyamopsis tetragonoloba. f247 Honey NA. f248 Rosemary Rosmarinus officinalis. f254 Plaice Pleuronectes platessa. f255 Plum Prunus domestica ,Prunus americana. f258 Squid Loligo spp. f259 Grape Vitis vinifera (Vitis spp.). f260 Broccoli Brassica oleracea var. italica (Brassica oleracea var. cultivar ). f261 Asparagus Asparagus officinalis. f262 Aubergine, eggplant Solanum melongena. f263 Green pepper Piper nigrum ,Capsicum annuum. f264 Eel Anguilla anguilla. f265 Caraway Carum carvi. f265 Cumin Cuminum cyminum. f266 Mace Myristica fragrans. f267 Cardamon Elettaria cardamomum. f268 Clove Syzygium aromaticum. f269 Basil Ocimum basilicum. f270 Ginger Zingiber officinale. f271 Anise Pimpinella anisum. f272 Tarragon Artemisia dracunculus. f273 Thyme Thymus vulgaris. f274 Marjoram Origanum majorana. f275 Lovage Levisticum officinale. f276 Fennel, fresh Foeniculum vulgare. f277 Dill Anethum graveolens. f278 Bay leaf Laurus nobilis. f279 Chili pepper Capsicum frutescens. f280 Black pepper Piper nigrum. f281 Curry (Santa Maria) NA. f282 Nutmeg Myristica fragrans. f283 Oregano Origanum vulgare. f284 Turkey meat Meleagris gallopavo. f285 Elk/moose meat Alces spp. f286 Mare's milk Equus caballus (Equus spp.). f287 Red kidney bean Phaseolus vulgaris. f288 Blueberry Vaccinium myrtillus (Vaccinium spp.). f289 Date Phoenix dactylifera. f291 Cauliflower Brassica oleracea var. botrytis. f292 Guava Psidium guajava. f293 Papaya Carica papaya. f294 Passion fruit, Maracuja Passiflora edulis (Passiflora spp.). f295 Carambola Averrhoa carambola. f296 Carob Ceratonia siliqua. f297 Gum Arabic Acacia senegal (Acacia spp.). f298 Tragacanth Astragalus spp. f299 Sweet chestnut (chestnut) Castanea sativa. f300 Pinto bean Phaseolus spp. f301 Persimmon (kaki fruit, sharon) Diospyros kaki. f302 Mandarin (tangerine, clementine, satsumas) Citrus reticulata. f305 Fenugreek Trigonella foenum-graecum. f306 Lime Citrus aurantifolia. f307 Hake Merluccius merluccius. f308 Sardine (pilchard) Sardina pilchardus. f310 Blue vetch Lathyrus sativus. f311 Megrim Lepidorhombus whiffiagonis. f315 Green bean Phaseolus vulgaris. f316 Rape seed Brassica napus. f317 Coriander Coriandrum sativum. f318 Jack fruit Artocarpus heterophyllus. f319 Beetroot Beta vulgaris. f320 Crayfish Astacus astacus. f321 Horse meat Equus caballus (Equus spp.). f322 Red currant Ribes sylvestre. f324 Hop (fruit cone) Humulus lupulus. f325 Saffron Colchicum autumnale. f328 Fig Ficus carica. f329 Watermelon Citrullus lanatus. f330 Rose hip Rosa spp. f331 Saffron Crocus sativus. f332 Mint Mentha piperita. f333 Linseed Linum usitatissimum. f336 Jujube Ziziphus jujuba. f336 Wine vinegar Vitis vinifera (Vitis spp.). f337 Sole Solea solea. f337 English sole Parophrys vetulus. f338 Wine, white Vitis vinifera (Vitis spp.). f339 Allspice Pimenta dioica. f339 Wine, red Vitis vinifera (Vitis spp.). f341 Cranberry Vaccinium oxycoccus ,Vaccinium macrocarpon. f342 Olive (black, fresh) Olea europaea. f343 Raspberry Rubus idaeus. f344 Sage Salvia officinalis. f346 Chives Allium schoenoprasum. f347 Quinoa Chenopodium quinoa. f348 Litchi Litchi chinensis. f349 Chum salmon roe Oncorhynchus keta. f358 Artichoke Cynara scolymus. f360 Yogurt NA. f368 Black bass Micropterus dolomieu (Micropterus dolomieui ). f374 Karaya gum Sterculia urens. f375 Horseradish Armoracia rusticana. f377 Maple syrup NA. f379 Okra Abelmoschus esculentus. f382 Beet, sugar Beta vulgaris var. altissima. f401 Loquat Eriobotrya japonica. f402 Fig Ficus carica. f403 Brewer's yeast Saccharomyces cerevisiae. f405 Mint Mentha spp. f406 Arugula Eruca vesicaria. House Dust h1 Greer Labs., Inc NA. h2 Hollister-Stier Labs NA. h6 Japan NA. Venoms & Insects i7 Midge Chironomus yoshimatsui. i8 Moth Bombyx mori ,Heterocera spp. i47 Water flea Daphnia spp. i49 Deer fly Chrysops spp. i51 Black ant Camponotus pennsylvanicus. i54 Flea mix (dog/cat), common flea Ctenocephalides spp. i71 Mosquito Aedes communis ,Aedes spp.and Culex spp. i72 Green nimitti Cladotanytarsus lewisi. i73 Blood worm Chironomus thummi ,Chironomusri parius ,Chironomus spp. i75 European hornet Vespa crabro. i76 Berlin beetle Trogoderma angustum. i77 European paper wasp Polistes dominulus. i78 Fly Musca domestica. i80 Bumblebee Bombus pennsylvanicus. i201 Horse bot fly Gasterophilus intestinalis. i202 Grain weevil Sitophilus granarius. i203 Mediterranean flour moth Ephestia kuehniella (Anagasta kuehniella ). i204 Horse fly Tabanus spp. i205 Bumblebee Bombus terrestris. i208 Api m 1.0101 Apis mellifera. a45 Api m 1 Apis mellifera. i209 Ves v 5.0101 Vespula vulgaris. a670 Ves v 5 Vespula vulgaris. i210 Pol d 5.0101 Polistes dominulus. i211 Ves v 1.0101 Vespula vulgaris. i213 Api m 4 Apis mellifera. i214 Api m 2 Apis mellifera. i215 Api m 3 Apis mellifera. i216 Api m 5 Apis mellifera. i217 Api m 10 Apis mellifera. i220 Bla g 1.0101 Blattella germanica. i221 Bla g 2.0101 Blattella germanica. i222 Bla g 5.0101 Blattella germanica. i223 Bla g 7 Blattella germanica. a46 Api m 2 Apis mellifera. Miscellaneous o1 Cotton, crude fibers Gossypium spp. o3 Cotton (treated) Gossypium spp. o70 Seminal fluid Homo sapiens. o71 Staphylococcus aureus Staphylococcus aureus. o72 Pichia pastoris crude extract customer specific Pichia pastoris. o72 Sperm-sediment Homo sapiens. o73 Pichia pastoris crude extr. vector customer specific Pichia pastoris. o74 Pichia pastoris with vector customer specific Pichia pastoris. o201 Tobacco leaf, tobacco dust Nicotiana tabacum. o202 Artemia salina, fish feed Artemia salina. o203 Tetramin, fish feed NA. o207 Daphnia, fish feed Daphnia spp. o211 Mealworm Tenebrio molitor. o212 Streptavidin Streptomyces avidini. o213 MBP (maltose binding protein) Escherichia coli. o214 CCD; MUXF3 from bromelain Ananas comosus. o72 Enterotoxin A (Sta a SEA) Staphylococcus aureus. o73 Enterotoxin B (Sta a SEB) Staphylococcus aureus. Parasites p1 Ascaris Ascaris suum. p2 Echinococcus Echinococcus granulosus. p3 Schistosoma Schistosoma mansoni. p4 Anisakis (Herring Worm) Anisakis simplex (Anisakis spp.). p5 Toxocara canis Toxocara canis. p10 Ani s 3.0101 Anisakis simplex (Anisakis spp.). p11 Ani s 1 Anisakis simplex (Anisakis spp.). Occupational k4 Threshing dust NA. k5 Flax NA. k7 Hay Dust NA. k8 Hop (hops) Humulus lupulus. k12 Grain mill dust NA. k14 Kapok NA. k20 Sheep's wool (treated) (wool) Ovis aries (Ovis spp.). k21 Sheep's wool (Untreated) Ovis aries (Ovis spp.). k23 Straw Dust NA. k33 Oak NA. k70 Green coffee bean Coffea spp. k71 Castor bean Ricinus communis. k72 Ispaghula Plantago psyllium/Plantago ovata. k73 Silk waste NA. k74 Silk Bombyx mori. k75 Isocyanate TDI (Toluene diisocyanate) NA. k76 Isocyanate MDI (Diphenylmethane diisocyanate) NA. k77 Isocyanate HDI (Hexamethylen diisocyanate) NA. k78 Ethylene oxide NA. k79 Phthalic anhydride NA. k80 Formaldehyde/Formalin NA. k81 Ficus Ficus benjamina (Ficus spp.). k83 Cotton seed Gossypium hirsutum. k84 Sunflower seed Helianthus annuus. k85 Chloramin T NA. k86 Trimellitic anhydride, TMA NA. k87 Asp o 21, alpha-amylase Aspergillus oryzae. k89 Orris root Iris florentina. k99 HSA (Human Serum Albumin) (Hom s HSA) Homo sapiens. k201 Car p 1, Papain Carica papaya. k202 Ana c 2, Bromelain Ananas comosus. k204 Maxatase Bacillus licheniformis. k205 Alcalase Bacillus spp. k206 Savinase, Protease 1 (Bac l Subtilisin) Bacillus spp. k208 Gal d 4, Lysozyme Gallus domesticus (Gallus gallus domesticus; Gallus spp.). k209 Hexahydrophtalic anhydrid NA. k210 Maleic anhydride NA. k211 Methyltetrahydrophtalic anhydrid NA. k212 Abachi wood dust Triplochiton scleroxylon. k213 Pepsin (Sus s Pepsin) Sus scrofa (Sus scrofa domesticus; Sus spp.). k213 TCPA NA. k214 Bougainvillea Bougainvillea spp. k225 Horse radish peroxidase (Arm r HRP) Armoracia rusticana. k226 Ascorbate oxidase (Cuc p ascorbate oxidase) Cucurbita pepo. k301 Flour dust Triticum spp. k501 Savinase customer specific Proprietary knowledge of customer. k502 Lipolase customer specific Proprietary knowledge of customer. k503 Termamyl customer specific Proprietary knowledge of customer. k504 Clazinase customer specific Proprietary knowledge of customer.

Submission Summary (Full Text)

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# 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY ASSAY ONLY TEMPLATE

A. 510(k) Number:
k132082

B. Purpose for Submission:
New device

C. Measurand:
Anti-Deaminated Gliadin-derived Peptide (DGP) Antibodies

D. Type of Test:
Semi-quantitative and qualitative enzyme immunoassay

E. Applicant:
AESKU Diagnostics GmbH & Co.KG

F. Proprietary and Established Names:
AESKULISA® DGP-A
AESKULISA® DGP-G
AESKULISA® DGP-Check

G. Regulatory Information:
1. Regulation section:
21 § CFR 866.5750 – Radioallergosorbent (RAST) immunological test system
2. Classification:
Class II
3. Product code:
MST – Antibodies Gliadin
4. Panel:
Immunology (82)

H. Intended Use:
1. Intended use(s):
AESKULISA DGP-A is an in vitro diagnostic device. This solid phase enzyme immunoassay

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employs synthetic, deamidated gliadin-derived peptides for the semiquantitative and qualitative detection of IgA antibodies against deamidated Gliadin-specific peptides (DGP) in human serum. The assay is an aid in the diagnosis of celiac disease (gluten-sensitive enteropathy) and should be used in conjunction with other serological tests and clinical findings.

AESKULISA DGP-G is an in vitro diagnostic device. This solid phase enzyme immunoassay employs synthetic, deamidated gliadin-derived peptides for the semiquantitative and qualitative detection of IgG antibodies against deamidated Gliadin-specific peptides (DGP) in human serum. The assay is an aid in the diagnosis of celiac disease (gluten-sensitive enteropathy) and should be used in conjunction with other serological tests and clinical findings.

AESKULISA DGP-Check is an in vitro diagnostic device. This solid phase enzyme immunoassay employs synthetic, deamidated gliadin-derived peptides for the combined semiquantitative and qualitative detection of IgA and IgG antibodies against deamidated Gliadin-specific peptides (DGP) in human serum. The assay is an aid in the diagnosis of celiac disease (gluten-sensitive enteropathy) and should be used in conjunction with other serological tests and clinical findings.

2. Indication(s) for use:
Same as intended use

3. Special conditions for use statement(s):
Prescription use only

4. Special instrument requirements:
Microplate reader capable of reading absorbance values at 450 nm

I. Device Description:

AESKULISA DGP kits include the following common reagents:
- Sample buffer concentrate (5x), 1x20 mL
- Wash buffer concentrate (50x), 1x20 mL
- Negative/positive/control, containing human serum, BSA and buffer components, 1x1.5mL each
- Cut-off calibrator for qualitative analysis, containing human serum, BSA and buffer components, 1x1.5mL
- Calibrators, (0, 3, 10, 30, 100; 300 U/mL), containing human serum, BSA and buffer components, 6x1.5mL
- Conjugate IgA/IgG – Goat Anti-human Immunoglobulins conjugated to horseradish peroxidase (HRP), 1x15mL
- TMB Substrate - Tetramethylbenzidine (TMB) chromogenic substrate, 1x15 mL
- Stop solution containing 1 M HCl, 1x15mL
- 96-well microtiter plate (12x8 well strips) with breakaway microwell coated with synthetic deaminated gliadin peptides.

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J. Substantial Equivalence Information:

1. Predicate device name(s) and 510(k) numbers:

QUANTA Lite™ Gliadin IgA II (k052143)
QUANTA Lite™ Gliadin IgG II (k052142)
QUANTA Lite™ Celiac DGP Screen (k062708)

2. Comparison with predicates:

| Similarities | | |
| --- | --- | --- |
| Feature | New devices
AESKULISA
DGP-A/G/Check | Predicate device
INOVA QUANTA Lite Gliadin
IgA II/ IgG II/
Celiac DPG Screen |
| Indications for Use | Aid in the diagnosis of celiac disease and should be used in conjunction with other serological tests and clinical findings | Same |
| Antigen | Deaminated gliadin peptides | Same |
| Conjugate | HRP conjugated goat anti-human IgA, IgG or IgA/IgG immunoglobulins | Same |
| Assay Principle | Indirect noncompetitive enzyme immunoassay | Same |
| Sample Dilution | 1:100 | Same |
| Specimen Type | Serum | Same |
| Assay Platform | 96 well microtiter plates | Same |
| Incubation times | 30-30-30 minutes | Same |
| Signal detected | Absorbance/optical density (OD) at 450 nm | Same |
| Differences | | |
| --- | --- | --- |
| Feature | New devices | Predicate devices |
| Antigen used | Synthetic, deaminated gliadin peptide | Purified gliadin peptides |
| Calibrators | 6 calibrators: 0; 3; 10; 30; 100; 300 (U/mL)
1 cut-off calibrator | None |
| Controls | Positive Control | Low Positive Control
High Positive Control |
| Assay Cut-off
DGP-A & DGP-G
DGP-Check | 12-18 U/mL equi zone
16-24 U/mL equi zone | 20 U/mL
20 U/mL |

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| Differences | | |
| --- | --- | --- |
| Feature | New devices | Predicate devices |
| Result Interpretation Qualitative | Based on the cutoff calibrator
Negative: < 0.8xOD cutoff
Equivocal: 0.8xOD cut-off
≤OD patient ≤ 1.2 x OD cut-off
Positive: > 1.2 x OD cutoff | No qualitative interpretation |
| Semi-quantitative: IgA or IgG | ≤12 U/mL= Negative
12-18 U/mL=Equivocal
>18 U/mL=Positive | ≤20 U/mL= Negative
20-30 U/mL=Weak Positive
>30 U/mL= Moderate-High Positive |
| IgA/IgG | ≤16 U/mL= Negative
16-24 U/mL=Equivocal
>24 U/mL=Positive | ≤20 U/mL= Negative
20-30 U/mL=Weak Positive
>30 U/mL= Moderate-High Positive |

## K. Standard/Guidance Document Referenced (if applicable):

CLSI EP06-A: Evaluation of the Linearity of Quantitative Measurement Procedures: A Statistical Approach; Approved Guideline

CLSI EP07-A2: Interference Testing in Clinical Chemistry, Approved Guideline – Second Edition

CLSI EP9-A2: Method Comparison and Bias Estimation Using Patient Samples; Approved Guideline – Second Edition

CSLI EP17-A2: Protocols for Determination of Limits of Detection and Limits of Quantitation; Approved Guideline

CLSI C28-A3c: Defining, Establishing, and verifying Reference Intervals in the Clinical Laboratory

CLSI EP25-A: Evaluation of Stability of In Vitro Diagnostic Reagents

CLSI H18-A4: Procedures for the Handling and Processing of Blood Specimens for Common Laboratory Tests

## L. Test Principle:

The AESKULISA® DGP assays are solid phase indirect noncompetitive immunoassays. The antigen (deaminated gliadin specific peptides) is coated to 96 well microtiter plates. Antibodies specific for DGP present in the diluted patient sera bind to the synthetic gliadin antigen immobilized on wells of a microtiter plate. The formed antigen-antibody complex then interacts with the enzyme-labeled anti-human antibody conjugate that is added to each well and reacts with a chromogenic substrate to develop a colored reaction product. A quantitative determination of antibody concentration is obtained by absorbance measurement of the colored solution using a spectrophotometric microtiter plate reader. The intensity of color formation from the chromogen is a

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function of the amount of conjugate bound to the antigen-antibody complex and thus is proportional to the initial concentration of antibodies in the patient sera.

## M. Performance Characteristics (if/when applicable):

### 1. Analytical performance:

#### a. Precision/Reproducibility:

For the semi-quantitative claim, studies were performed with six sera samples with analyte levels across the reportable range of each assay. Each sample was tested in 8 replicates in 5 runs in 5 days with 1 reagent lot (n = 40). Lot-to-lot precision study was performed with the same samples. The same antigen but a different lot of conjugate was used for each of the three lots. The results are summarized in the tables below:

AESKULISA DGP-A (assay range 1.74-300 U/mL; 12-18 U/mL equivocal)

| | Intra-assay | | Inter-assay | | Lot-to-Lot | |
| --- | --- | --- | --- | --- | --- | --- |
| Mean (U/mL) | SD | %CV | SD | %CV | SD | %CV |
| 2.7 | 0.3 | 11.2 | 0.6 | 21.0 | 0.5 | 17.6 |
| 12.9 | 0.9 | 6.9 | 1.4 | 10.5 | 1.2 | 9.1 |
| 16.7 | 1.6 | 9.6 | 1.8 | 10.7 | n/d | n/d |
| 49.9 | 2.4 | 4.7 | 5.3 | 10.6 | 4.3 | 8.2 |
| 97.2 | 5.2 | 5.4 | 9.9 | 10.2 | 8.8 | 9.0 |
| 209.3 | 12.2 | 5.7 | 29.7 | 14.2 | 24.4 | 10.8 |

AESKULISA DGP-G (assay range 2.09-300 U/mL; 12-18 U/mL equivocal)

| | Intra-assay | | Inter-assay | | Lot-to-Lot | |
| --- | --- | --- | --- | --- | --- | --- |
| Mean (U/mL) | SD | %CV | SD | %CV | SD | %CV |
| 3.2 | 0.4 | 11.3 | 0.7 | 21.5 | 0.2 | 7.6 |
| 12.1 | 1.2 | 10.4 | 1.8 | 14.8 | 1.4 | 12.4 |
| 19.5 | 1.8 | 9.0 | 2.0 | 10,0 | n/d | n/d |
| 24.3 | 2.8 | 11.7 | 3.2 | 13.0 | 2.0 | 9.1 |
| 86.2 | 8.0 | 9.3 | 9.3 | 10.8 | 5.8 | 7.2 |
| 256.9 | 21.7 | 8.5 | 30.4 | 11.8 | 22.7 | 8.6 |

AESKULISA DGP-Check (assay range 1.84-300 U/mL; 16-24 U/mL equivocal)

| | Intra-assay | | Inter-assay | | Lot-to-Lot | |
| --- | --- | --- | --- | --- | --- | --- |
| Mean (U/mL) | SD | %CV | SD | %CV | SD | %CV |
| 11.5 | 1.2 | 10.8 | 1.4 | 12.2 | 1.3 | 12.4 |
| 18.9 | 1.2 | 10.3 | 1.4 | 12.2 | 1.29 | 12.4 |
| 28.8 | 3.6 | 12.5 | 2.3 | 12.2 | 2.1 | 11.0 |
| 64.0 | 5.2 | 8.2 | 3.8 | 13.0 | 3.3 | 11.0 |
| 128.0 | 8.9 | 7.1 | 18.5 | 14.4 | 10.3 | 8.1 |

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For the qualitative claim, the same 6 samples were evaluated. Negative samples were 100% negative and positive samples were 100% positive. Results of the equivocal and positive samples close to the upper limit of the equivocal zone are summarized below:

| Sample concentration | negative | Equivocal | positive |
| --- | --- | --- | --- |
| DGP-A (12-18U/mL equivocal zone) | | | |
| 12.9 U/mL | 30.0% | 70.0% | 0.0% |
| 16.7 U/mL | 0.0% | 75.0% | 25.0% |
| DGP-G (12-18U/mL equivocal zone) | | | |
| 12.1 U/mL | 42.5% | 57.5% | 0.0% |
| 19.5 U/mL | 0.0% | 20.0% | 80.0% |
| 24.3 U/mL | 0.0% | 5.0% | 95.0% |
| DGP-Check (16-24U/mL equivocal zone) | | | |
| 18.9 U/mL | 15.0% | 85.0% | 0.0% |
| 28.8 U/mL | 5.0% | 95.0% | 0.0% |

## b. Linearity/assay reportable range:

Three positive serum samples were serially diluted using a negative serum sample and tested in duplicates. A calculation of the percent recovery and a regression analysis were performed on the results for each assay. The samples with &gt; ± 10% recovery from the expected value were typically highly diluted samples.

The results are summarized below:

| Dilution range U/mL | Slope (95%CI) | Y-intercept (95%CI) | R² |
| --- | --- | --- | --- |
| DGP-A | | | |
| 331.9 - 35.6 | 1.016 (0.91 to 1.13) | -12.7 (-40.19 to 14.78) | 0.988 |
| 89.6 - 5.3 | 1.015 (0.88 to 1.15) | 5.24 (-18.63 to 8.16) | 0.983 |
| 13.9 - 1.3 | 0.974 (0.803 to 1.14) | -0.706 (-2.31 to 0.89) | 0.97 |
| Combined | y = -1.2987 + 1.0040x R² 0.9958 | | |
| DGP-G | | | |
| 313.9 - 42.3 | 0.979 (0.89 to 1.06) | 2.32 (-14.66 to 19.3) | 0.993 |
| 119.2 -13.7 | 0.927 (1.107 to 1.11) | -3.37 (-10.20 to 3.47) | 0.992 |
| 16.7 - 1.2 | 1.08 (0.93 to 1.23) | -1.06 (-2.70 to 0.58) | 0.980 |
| Combined | y = -0.5213 + 0.9905x R² 0.9969 | | |

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| Dilution range U/mL | Slope (95%CI) | Y-intercept (95%CI) | R² |
| --- | --- | --- | --- |
| DGP-Check | | | |
| Dilution range U/mL | Slope (95%CI) | Y-intercept (95%CI) | R² |
| 392.5-26.9 | 0.988 (088 to 1.09) | 2.926 (-19.51 to 25.37) | 0.989 |
| 156.5- 11.2 | 1.044 (0.958 to 1.13) | -5.27 (-10.18 to -0.37) | 0.993 |
| 14.0-1.3 | 1.002 (0.904 to 1.10) | -0.479 (-1.35 to 0.39) | 0.991 |
| Combined | y = -2.8031 + 0.9827x R² 0.9941 | | |

The DGP-A claimed linear range is 1.74 – 300 U/mL

The DGP-G claimed linear range is 2.1 – 300 U/mL

The DGP-Check claimed linear range is 1.84 – 300 U/mL

c. Traceability, Stability, Expected values (controls, calibrators, or methods):

Traceability:

There are no international standards for the gliadin antibodies. The results are reported in arbitrary units (U/mL). In order to have traceability with newly made calibrators, each new lot of calibrators is assayed on an already cleared kit and compared to the exiting calibrators.

Calibrators and Controls:

The calibrators are human serum in standard buffer. There are 6 levels (A-F) with assigned values from 0-300 U/mL. Calibrators E to Cal B are generated by diluting Cal F according to the dilution scheme shown in table below. The cut-off calibrator for the qualitative analysis is derived from Cal F by diluting Cal F to 15 U/mL for IgA and IgG and 20 U/mL for IgA/G.

| Calibrator | Assigned Units (U/mL) | Dilution Range |
| --- | --- | --- |
| Cal F | 300 | |
| Cal E | 100 | 1:3 dil of F |
| Cal D | 30 | 1:3 dil of E |
| Cal C | 10 | 1:3 dil of D |
| Cal B | 3 | 1:3 dil of C |
| Cal A | 0 | Buffer (contains no sera) |

Calibrator curve is acquired by fitting the values of 6 calibrators using a 4 parameter Lin-Log fit.

The negative control contains negative human serum in buffer. The positive control is from Cal F by diluting Cal F to 45-50 U/mL.

Kit Stability:

Shelf life stability was tested at real-time. Three lots of the assay kit, including all

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components of the kit, were stored at $2 - 8^{\circ}\mathrm{C}$ . At different time points (0, 6 months, 12 months and 18 months), three samples with low, medium and high level of the analyte were tested in duplicate in one assay run. The results were compared to the results of the same samples tested at time $= 0$ . The results support an unopened/shelf-life of 18 months at $2 - 8^{\circ}\mathrm{C}$ .

Open vial stability - 4 samples - high negative, cut-off, low positive and high positive (approximately 10, 15, 30-70 and $&gt;100\mathrm{U / mL}$ ) - were tested on different days on DGP-A, G and Check. The recovery results after 1 month were $96\%$ to $112.7\%$ .

Transport stability – the kit was assayed with 4 samples (negative, low, medium, high); each sample was tested in duplicate after being for 2 weeks at $37^{\circ}\mathrm{C}$ and compared to $t = 0$ . The stability results are summarized below:

| Stability | DGP-A/DGP-G/DGP-Check |
| --- | --- |
| Kit shelf life (2-8°C) | 18 months |
| Transport stability (37°C) | 2 weeks |
| Reconstituted buffers | 1 month |
| Open kit stability (2-8°C) | 28 days |
| Serum samples | Up to 4 freeze/thaw cycles |

# d. Detection limit:

The Limit of Blank (LoB) was based on 60 determinations of a blank sample and was estimated as the $95\%$ percentile of the distribution. The Limit of Detection (LoD) was calculated according to the equation: the $\mathrm{LoB} + c_{\beta}\mathrm{x}$ SD where SD, the standard deviation, was determined by assaying eight samples with analyte level near the lower limit of the reportable range in eight replicates. The results are summarized below:

| | LoB (U/mL) | LoD (U/mL) |
| --- | --- | --- |
| AESKULISA DGP-A | 0.53 | 1.69 |
| AESKULISA DGP-G | 0.30 | 1.83 |
| AESKULISA DGP-Check | 0.20 | 1.44 |

# e. Analytical specificity:

# Interference:

Interferences were assessed by testing 4 serum samples with analyte concentrations across the assay range. Each sample was spiked with interfering substances and tested in duplicates. The data demonstrated that the assay was not affected by high levels of Rheumatoid Factor (400 IU/mL), Bilirubin (20 mg/dL), Triglyceride (3000 mg/dL), and Hemoglobin (800 mg/dL). The data is summarized in the table below:

| | Percent Recovery (%) | | |
| --- | --- | --- | --- |
| Interfering substance (concentration) | DGP-A | DGP-G | DGP-Check |
| Rheumatoid Factor (400 IU/mL) | 93.4-105.9 | 99.4-107.8 | 96.9-113.9 |
| Bilirubin (20 mg/dL) | 87.4-112.6 | 98.4-117.7 | 102.5-110.5 |
| Triglyceride (3000 mg/dL) | 89.2-101.9 | 93.9-97.3 | 87.3-107.2 |
| Hemoglobin (800 mg/dL) | 91.5-95.5 | 95.6-101.6 | 86.9-105.7 |

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# Cross-reactivity:

Cross-reactivity was tested using samples from other autoimmune conditions. The samples and results are summarized in the table below:

| Diagnosis | Crossreactivity | | |
| --- | --- | --- | --- |
| | DGP-A pos >18 U/mL | DGP-G pos >18 U/mL | DGP-Check pos >24 U/mL |
| Autoimmune Hepatitis | 0/5 (0%) | 0/5 (0%) | 0/6 (0%) |
| CCP | 0/5 (0%) | 0/5 (0%) | 0/5 (0%) |
| CCP; Rheumatoid Factor | 0/11 (0%) | 0/11 (0%) | 0/11 (0%) |
| Crohns Disease | ND | ND | 0/7 (0%) |
| Healthy | 0/99 (0%) | 0/99 (0%) | 1/99 (1%) |
| non-DH/CD controls (unspecified, diagnosis unknown) | 1/56 (1.8%) | 3/56 (5.4%) | 3/56 (5.4%) |
| Rheumatoid Arthritis | 0/18 (0%) | 0/18 (0%) | 0/18 (0%) |
| SLE | 0/13 (0%) | 0/13 (0%) | 0/23 (0%) |
| Vasculitis | 0/2 (0%) | 0/2 (0%) | 0/3 (0%) |
| Total | 1/209 (0.5%) | 3/209 (1.4%) | 4/228 (1.8%) |

# f. Assay cut-off:

The assay cut-off was established by measuring serum samples from 160 healthy donors and 139 subjects with other autoimmune diseases expected to be negative for DPG antibodies. These samples were not used in the clinical evaluation study. The cut-off was determined from the mean $\pm 3$ standard deviations. The results are shown in the table below:

| | Negative | Equivocal | Positive |
| --- | --- | --- | --- |
| DGP-A | < 12 U/mL | 12–18 U/mL | > 18 U/mL |
| DGP-G | < 12 U/mL | 12–18 U/mL | > 18 U/mL |
| DGP-Check | < 16 U/mL | 16-24 U/mL | > 24 U/mL |

# 2. Comparison studies:

# a. Method comparison with predicate device

For the method comparison study, 431 serum samples were tested by both the new and predicate devices (see table below). Patients with Celiac Disease (CD) were diagnosed by serology and confirmed with biopsy. Patients with Dermatitis Herpetiformis (DH) were diagnosed based on skin biopsy and serology.

| Disease Group | Number of Samples |
| --- | --- |
| Celiac Disease (CD) | 79 |
| CD IgA Def | 16 |
| CD suspect | 41 |
| CD suspect IgA Def | 2 |
| Dermatitis Herpetiformis (DH) | 65 |
| Total | 203 |

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| Disease Controls | Number of Samples |
| --- | --- |
| Autoimmune Hepatitis | 6 |
| CCP | 5 |
| CCP; Rheumatoid Factor | 11 |
| Crohns Disease (DGP-Check only) | 7 |
| Rheumatoid Arthritis | 18 |
| SLE | 23 |
| Vasculitis | 3 |
| Non DH-CD (diagnosis unspecified/unknown) | 56 |
| Total | 129 |
| Healthy Controls | 99 |
| Total | 431 |

For the comparison study calculations, samples outside of the reportable range of both devices and the 99 normal samples were excluded. For DGP Check testing, 12 diluted samples were included to cover the assay range. Results are summarized below:

# AEKULISA DPG-A

| DGP-A | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive (>20) | Negative (≤20) | Total |
| AESKULISA DGP-A Test (U/mL) | Positive (>18) | 88 | 16* | 104 |
| | Equivocal (18-12) | 7** | 20 | 27 |
| | Negative (<12) | 13** | 64 | 77 |
| | Total | 108 | 100 | 208 |

*10 CD, 2 DH, 3 suspected of CD, 1 non-DH/CD
**16 CD, 1 suspected of CD, 2 DH, 1non-DH/CD

| DGP-A Equivocal as negative | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU (U/mL) | Positive >18 | 88 | 16 | 104 |
| | Negative ≤18 | 20 | 84 | 104 |
| | Total | 108 | 100 | 208 |

Positive agreement: $81.5\%$ (88/108) $(95\% \mathrm{CI}:73.1 - 87.7\%)$
Negative agreement: $84.0\%$ (84/100) $(95\% \mathrm{CI}:75.6 - 89.9\%)$
Total agreement: $82.7\%$ [(88+84)/208] (95% CI: 77.0 - 87.2%

| DGP-A Equivocal as positive | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU (U/mL) | Positive ≥12 | 95 | 36 | 131 |
| | Negative <12 | 13 | 64 | 77 |
| | Total | 108 | 100 | 208 |

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Positive % agreement: 88.0% (95/108) (95% CI: 80.5 - 92.8%)
Negative % agreement: 64.0% (64/100) (95% CI: 54.2 - 72.7%)
Total % agreement: 76.4% [(95+64)/208] (95% CI: 70.2 - 81.7%)

# AESKULISA DGP-G

| DGP-G | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive (>20) | Negative (≤20) | Total |
| AESKULISA DGP-G (U/mL) | Positive (>18) | 136 | 13* | 149 |
| | Equivocal (18-12) | 8** | 13 | 21 |
| | Negative (<12) | 0 | 48 | 48 |
| | Total | 144 | 74 | 218 |

*7 CD, 4 DH, 2 non-DH/CD
**2 CD, 3 suspected of CD, 3 DH

| DGP-G
Equivocal as negative | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU (U/mL) | Positive >18 | 136 | 13 | 149 |
| | Negative ≤18 | 8 | 61 | 69 |
| | Total | 144 | 74 | 218 |

Positive % agreement: 94.4% (136/144) (95% CI: 89.4 - 97.2%)
Negative % agreement: 82.4% (61/74) (95% CI: 72.2 - 89.4%)
Total % agreement: 90.4% [(136+61)/218] (95% CI: 85.7 - 93.6%)

| DGP-G
Equivocal as positive: | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU (U/mL) | Positive ≥12 | 144 | 26 | 170 |
| | Negative <12 | 0 | 48 | 48 |
| | Total | 144 | 74 | 218 |

Positive % agreement: 100% (144/144) (95% CI: 97.4 - 100.0%)
Negative % agreement: 64.9% (48/74) (95% CI: 53.5 - 74.8%)
Total % agreement: 88.1% [(144+48)/218] (95% CI: 83.1 - 91.7%)

# AESKULISA DPG-Check:

| DGP-Check | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive (>20) | Negative (≤20) | Total |
| AESKULISA DGP-Check (U/mL) | Positive (>24) | 122 | 8* | 130 |
| | Equivocal (16-24) | 14** | 5 | 19 |
| | Negative (<16) | 7** | 60 | 67 |
| | Total | 143 | 73 | 216 |

*6 CD, 1 suspected of CD, 1 non-DH/CD
**14 equivocal [7 CD (diluted); 6 suspected of CD; 1 DH]
**7 negative (2 CD; 2 suspected of CD suspect; 3 DH)

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12

| DGP-Check
Equivocal as negative | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU
(U/mL) | Positive >24 | 122 | 8 | 130 |
| | Negative ≤24 | 21 | 65 | 86 |
| | Total | 143 | 73 | 216 |

Positive % agreement: 85.3% (122/143) (95% CI: 78.6% – 90.2%)
Negative % agreement: 89.0% (65/73) (95% CI: 79.8% – 94.3%)
Total % agreement: 86.6% [(122+65)/216] (95% CI: 81.4 – 90.5%)

| DGP-Check
Equivocal as positive | INOVA (U/mL) | | | |
| --- | --- | --- | --- | --- |
| | | Positive >20 | Negative ≤20 | Total |
| AESKU
(U/mL) | Positive ≥16 | 136 | 13 | 149 |
| | Negative <16 | 7 | 60 | 67 |
| | Total | 143 | 73 | 216 |

Positive % agreement: 95.1% (136/143) (95% CI: 90.2% – 97.6%)
Negative % agreement: 82.2% (60/73) (95% CI: 71.9% – 89.3%)
Total % agreement: 90.7% [(136+60)/216] (95% CI: 86.1 – 93.9%)

b. Matrix comparison:
Not applicable. Each assay uses only serum as the matrix.

3. Clinical studies:

a. Clinical Sensitivity and Specificity:
Serum samples used in the method comparison studies were also used to determine sensitivity and specificity of each assay. The following samples were excluded from the calculations: 43 samples with suspected CD and CD IgA deficient diagnosis and 99 healthy controls. For the DGP-A assay, the 16 CD samples with IgA deficiency were also excluded. For the DGP-Check, the 12 diluted samples were also excluded.

The tables below summarize the groups of diagnosed patients evaluated by each assay and the calculated specificity and sensitivity results with equivocals as positive or negative:

AESKULISA DGP-A:

| DGP-A
Equivocal as negative: | Diagnosis | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive >18 U/mL | 110 | 1 | 111 |
| Negative ≤18 U/mL | 34 | 109 | 143 |
| Total | 144 | 110 | 254 |

Sensitivity: 76.4% (110/144) (95% CI: 68.8 - 82.6)
Specificity: 99.1% (109/110) (95% CI: 95.0 - 99.8)
Overall Agreement: 86.2% [(110+109)/254] (95% CI: 81.4 – 89.9)

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| DGP-A
Equivocal as positive | Diagnosis | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive ≥12 U/mL | 123 | 23 | 146 |
| Negative <12 U/mL | 21 | 87 | 108 |
| Total | 144 | 110 | 254 |

Sensitivity: 85.4% (123/144) (95% CI: 78.7 - 90.3)

Specificity: 79.1% (87/110) (95% CI: 70.6 - 85.6)

Overall Agreement: 82.7% [(123+187)/254] (95% CI: 77.6 - 86.8)

| DGP-A | AESKU | | |
| --- | --- | --- | --- |
| Disease Group | POS (>12) | POS (>18) | Total |
| CD | 60(75.9%) | 51(64.6%) | 79 |
| DH | 63(96.9%) | 59(90.8%) | 65 |
| SLE | 7(53.8%) | 0(0%) | 13 |
| Vasculitis | 0(0%) | 0(0%) | 2 |
| Rheumatoid Arthritis | 2(11.1%) | 0(0%) | 18 |
| CCP | 1(20.0%) | 0(0%) | 5 |
| CCP; Rheumatoid Factor | 1(9.1%) | 0(0%) | 11 |
| Autoimmune Hepatitis | 0(0%) | 0(0%) | 5 |
| non-DH/CD controls
(diagnosis not specified) | 12(21.4%) | 1(1.8%) | 56 |
| Total | 146(57.5%) | 111(43.7%) | 254 |

# AESKULISA DGP-G:

| DGP-G
Equivocal as negative | Diagnosis | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive >18 U/mL | 150 | 3 | 153 |
| Negative ≤18 U/mL | 10 | 107 | 117 |
| Total | 160 | 110 | 270 |

Sensitivity: 93.8% (150/160) (95% CI: 88.9 - 96.6)

Specificity: 97.3% (107/110) (95% CI 92.3 - 99.1)

Overall Agreement: 95.2% [(150+107)/270] (95% CI: 91.9 - 97.2)

| DGP-G
Equivocal as positive: | Diagnosis | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive ≥12 U/mL | 159 | 31 | 190 |
| Negative <12 U/mL | 1 | 79 | 80 |
| Total | 160 | 110 | 270 |

Sensitivity: 99.4% (159/160) (95% CI: 96.6 - 99.9)

Specificity: 71.8% (79/110) (95% CI: 62.8 - 79.4)

Overall Agreement: 88.2% [(159+79)/270] (95% CI: 83.8 - 91.5)

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| DGP-G | AESKU | | |
| --- | --- | --- | --- |
| Disease Group | POS >12 | Pos >18 | Total |
| CD | 79(100%) | 75(94.9%) | 79 |
| CD IgA Def | 16(100%) | 16(100%) | 16 |
| DH | 64(98.5%) | 59(90.8%) | 65 |
| SLE | 9(69.2%) | 0(0%) | 13 |
| Vasculitis | 0(0%) | 0(0%) | 2 |
| Rheumatoid Arthritis | 5(27.8%) | 0(0%) | 18 |
| CCP | 1(20%) | 0(0%) | 5 |
| CCP; Rheumatoid Factor | 4(36.4%) | 0(0%) | 11 |
| Autoimmune Hepatitis | 4(80%) | 0(0%) | 5 |
| non-DH/CD controls | 8(14.3%) | 3(5.4%) | 56 |
| Total | 190(70.4%) | 153(56.7%) | 270 |

AESKULISA DGP-Check:

| DGP-Check Equivocal as negative | Diagnosis | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive >24 U/mL | 151 | 3 | 154 |
| Negative ≤24 U/mL | 9 | 126 | 135 |
| Total | 160 | 129 | 289 |

Sensitivity: 94.4% (151/160) (95% CI: 89.7 - 97.0)

Specificity: 97.7% (126/129) (95% CI 93.4 - 99.2)

Overall Agreement: $95.9\%$ [(151+126)/289] (95% CI: 92.9 - 97.6)

| DGP-Check Equivocal as positive: | Diagnosis Group | | |
| --- | --- | --- | --- |
| | Positive | Negative | Total |
| Positive ≥16 U/mL | 152 | 13 | 165 |
| Negative <16 U/mL | 8 | 116 | 124 |
| Total | 160 | 129 | 289 |

Sensitivity: $95.0\%$ (152/160) $(95\% \mathrm{CI}: 90.5 - 97.5)$

Specificity: $89.9\%$ (116/129) $(95\% \mathrm{CI}: 83.5 - 94.0)$

Overall Agreement: $92.7\%$ [(152+116)/289] (95% CI: 89.2 - 95.2)

| DGP-Check | AESKU | | |
| --- | --- | --- | --- |
| Disease Group | POS (>=16) | POS (>24) | Total |
| CD | 77(97.5%) | 77(97.5%) | 79 |
| CD IgA Def | 15(93.8%) | 15(93.8%) | 16 |
| DH | 60(92.3%) | 59(90.8%) | 65 |
| SLE | 7(30.4%) | 0(0%) | 23 |
| Vasculitis | 0(0%) | 0(0%) | 3 |
| Crohns Disease | 2(28.6%) | 0(0%) | 7 |
| Rheumatoid Arthritis | 0(0%) | 0(0%) | 18 |
| CCP | 0(0%) | 0(0%) | 5 |

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| DGP-Check | AESKU | | |
| --- | --- | --- | --- |
| Disease Group | POS (>=16) | POS (>24) | Total |
| CCP; Rheumatoid Factor | 1 (9.1%) | 0(0%) | 11 |
| Autoimmune Hepatitis | 0(0%) | 0(0%) | 6 |
| non-DH/CD controls | 3 (5.4%) | 3(5.4%) | 56 |
| Total | 165(57.1%) | 154(53.3%) | 289 |

b. Other clinical supportive data (when a. is not applicable):

Not applicable

4. Clinical cut-off:

See assay cut-off.

5. Expected values/Reference range:

The expected value in the general population is negative. A study of 133 apparently healthy blood donors was performed on all three AESKULISA kits. The samples included 69 female, 64 male; 116 in the age group of 16-45, 17 in the age group of 46+. The results are summarized in the table below:

| | Healthy Samples | | |
| --- | --- | --- | --- |
| Results | DGP-A | DGP-G | DGP-Check |
| Max | 13.7 IU/mL | 18.2 IU/mL | 28.4 IU/mL |
| Mean±SD | 3.1±1.8 IU/mL | 3.2±2.2 IU/mL | 8.3±4.4 IU/mL |
| 95% CI | 97.2 - 100.0% | 95.9 – 99.9% | 95.9 - 99.9% |

N. Proposed Labeling:

The labeling is sufficient and it satisfies the requirements of 21 CFR Part 809.10.

O. Conclusion:

The submitted information in this premarket notification is complete and supports a substantial equivalence decision.