TECHNICAL FIELD The present invention relates generally to the field of medicine, and relates specifically to methods and compositions for the prophylaxis and/or treatment of diseases of the eye using antagonists of the integin receptors 03 and/or as. More specifically, the invention relates to methods and compositions for the prophylaxis and/or treatment of diseases of the eye using antagonists of the integrin receptors αvß3 and or αvß5 wherein the compositions are administered to the eye by subTenon's injection.

BACKGROUND Integrins are a class of cellular receptors known to bind extracellular matrix proteins, and therefore mediate cell-cell and cell-extracellular matrix interactions, referred generally to as adhasion events. Integrins receptors constitute a family of proteins across membranes with shared structural characteristics heterodimeric glycoprotein complexes formed of a and (3 subunits.

One class of integrin receptors, the vitronectin receptor, named for its original characteristic of preferential binding to vitronectin, is known to refer to three different integrins, designated. CtvPl, αvß3 and αvß5. Horton, Int. J.

Exp. Pathol., 71: 741-759 (1990). avpl binds fibronectin and vitronectin. (X, P, binds a large variety of ligands, including fibrin, fibrinogen, laminin, thrombospondin, vitronectin, von Willebrand's factor, osteospontin and bone sialoprotein I. αß5 binds vitronectin. The specific cell adhesion roles these three integrins play in the many cellular interactions in tissues is still under investigation, but it is clear that there are different integrins with different biological functions.

One important recognition site in the ligand for many integrins is the arginine-glycine-aspartic acid (RGD) tripeptide sequence. RGD is found in all of the ligands identified above for the vitronectin receptor integrins. This RGD recognition site can be mimicked by polypeptides ("peptides") that contain the RGD sequence, and such RGD peptides are known inhibitors of integrin function.

Integrin inhibitors containing the RGD sequence are disclosed, for example, in EP 0 770 622 A2. The compounds described inhibit in particular the interactions of pg-and/or ps-integrin receptors with ligands and are particularly active in the case of the integrins αvß3, αvß5 and aIIß3, but also relative to αvß1, αvß6 and avß8 receptors. These actions can be demonstrated, for example, according to the method described by J. W. Smith et al. in J.

Biol. Chem. 265,12267-12271 (1990). In addition, the compounds possess anti-inflammatory effects.

On basis of integrin inhibitors containing the RGD sequence a multitude of antagonists without the RGD sequence have been made available. Those integrin inhibitors without RGD sequence are disclosed, for example, in WO 96/00730 A1, WO 96/18602 A1, WO 97/37655 A1, WO 97/06791 A1, WO 97/45137 A1, WO 97/23451 A1, WO 97/23480 A1, WO 97/44333 A1, WO 98/00395 A1, WO 98/14192 A1, WO 98/30542 A1, WO 99/11626 A1, WO 99/15178 A1, WO 99/15508 A1, WO 99/26945 A1, WO 99/44994 A1, WO 99/45927 A1, WO 99/50249 A2, WO 00/03973 A1, WO 00/09143 A1, WO 00/09503 A1, WO 00/33838 A1.

DE 1970540 A1 disclose bicyclic aromatic amino acids acting as integrin inhibitors of the av integrin receptors, particulary of the integrins avß3 and 05.. The compounds are very particularly active as adhesion receptor

antagonists for the vitronectin receptor avé3. This effect can be demonstrated, for example, by the method described by J. W. Smith et al. in J. Biol. Chem. 265,11008-11013 and 12267-12271 (1990).

WO 00/26212 A1 discloses chromenone and chromanone derivatives acting as integrin inhibitors of the av integrin receptors, particulary of the integrins avß3 and avd5. The compounds are also very particularly active as adhesion receptor antagonists for the vitronectin receptor avé3.

Integrin inhibitors have been suggested as pharmaceutical active principle in human and veterinary medicine, in particular for the prophylaxis and treatment of various disorders. Specifically suggested have been their use for the treatment and prophylaxis of the circulation, thrombosis, cardiac infarction, arteriosclerosis, inflammations, apoplexy, angina pectoris, tumor disorders, osteolytic disorders, especially osteoporosis, angiogenesis and disorders resulting from angiogenesis, for example diabetic retinopathy of the eye, macular degeneration, myopia, ocular histoplasmosis, rheumatic arthritis, osteoarthritis, rubeotic glaucoma, and also ulcerative colitis, Crohn's disease, multiple sclerosis, psoriasis and restenosis following angioplasty.

Eye diseases resulting from angiogenesis are the leading cause of visual loss in America. While in case of the population of the age of over 65 visual loss is predominantly effected by age-related macular degeneration (AMD) in case of population of the age of less than 65 this is predominantly effected by diabetic retinopathy.

In Wall Street Journal from March 6 th, 2000 an overview about occurence and current therapies of AMD is given. According to this AMD currently afflicts some 12 million Americans. AMD progressively destroys the macula which is responsible for central vision and color vision. In some cases,

deterioration of central vision to fuzzy blur can be rapid occuring in weeks or months. Two forms of the disease exists called, atrophic" and, exudative".

Although exudative AMD effects only 10% of the total AMD population, it accounts for 90% of all AMD-related blindness.

Until recently, the only treatment for exudative AMD consisted of directing a powerful laser beam at the harmful blood vessels to heat and coagulate them. However, only about 15% of patients with exudative AMD have been eligible for this laser surgery. Other therapies are currently in experimental phase. In one approach, called photodynamic therapy, a low-power laser is combined with injection of light-absorbing dye. Another therapy is a more surgical approach and is called"limited retinal translocation". In this therapy the leaky vessels are destroyed with a high-powered laser after separation and rotation of the retina from the outer wall of the eye.

US 5,766, 591 discribes the use of RGD-containing °tVß3 antagonists for the treatment of patients in which neovascularisation in the retinal tissue occurs.

More specifically the use of said antagonists for the treatment of patients with diabetic retinopathy, macular degeneration and neovasular glaucoma is suggested. However, no examples with regard to this indications are presented. Concerning to the route of administration only general information are given. Specifically intravenous, intraperitoneal, intramuscular, intracavital and transdermal application is mentioned. In all cases OCVß3 antagonists are preferred exhibiting selectivity for CCVß3 over other integrins such as tCvß5.

WO 97/06791 A1 discribes that 05 antagonists can be used for inhibiting angiogenesis too. Likewise as suggested for CCVß3 antagonists in US 5,766, 591 αvß5 antagonists are suggested for the treatment of a patient with diabetic retinopathy, macular degeneration and neovasular glaucoma. With

regard to the route of administration intravenous, intraocular, intrasynovial, intramuscular, transdermal and oral application is specifically mentioned.

DESCIPTION OF THE INVENTION It has been found that inhibitors of OCVß3 and/or a, p, integrin receptors have particularly useful pharmacological and physicochemical properties combined with good tolerability, as, in particular, they can be used for prophylaxis and treatment of diseases of the eye of a patient resulting from angiogenesis in the eye by injecting the inhibitor into the subTenon's space of the eye.

Accordingly, the invention is directed to a method for prophylaxis and/or treatment of diseases of the eye of a patient resulting from angiogenesis in the eye comprising injecting into the subTenon's space of the eye of the eye of said patient a composition comprising a therapeutical effective amount of an 03 and/or ag inhibitor sufficient to inhibit angiogenesis of the eye.

Injection into subTenon's space (subTenon's injection) means that the medicament is placed into the space between sclera and Tenon's capsule using an appropriate injection device. SubTenon's injection is generally known by the person skilled in the art, see, for example, Li HK et al., Ophthalmology, Vol. 107, No. 1,41-46 (2000).

Advantageously subTenon's injection is performed using the following procedure: (a) prepping and draping the eye in the usual fashion, (b) placing a lid speculum in the eye, (c) making a (ca. 1-2 mm) incision posterior to the limbus midway between the superior and lateral rectus musculus through conjunctiva and Tenon's capsule down to bare sclera, (d) grasping the

margins of the incision with a forceps and inserting the injection cannula through the incision io the space between bare slera and both conjunctiva and Tenon's capsule, (e) slowly injecting the contents of the syringe, advancing the tip of the cannula very slowly posteriorly and laterally taking care not to tear the capsule or conjunctiva or nearby blood vessels, (f) slowly retracting and finally removing the cannula from the globe after applying a cotton tipped applicator to the injection site just prior to extracting the cannula and, finally, (g) applying an antibiotic to the injection site.

A therapeutically effective amount is an amount of inhibitor sufficient to produce a measureable inhibition of angiogenesis in the tissue of the eye when injected into the subTenon's space. In general, this is the case when the αvß3 and/or αvß5 inhibitor is used in an amount from about 0. 5 ug to about 5 mg.

The method of invention is especially usable for prophylaxis and/or treatment of diabetic retinopathy, macular degeneration, myopia and histoplasmosis.

In a preferred embodiment of the invention polypeptides containing the amino acid sequence RGD are used as 03 and/or cpg inhibitors in the method for prophylaxis and/or treatment of eye diseases. As mentioned above, RGD is the peptide sequence Arg-Gly-Asp (arginine-glycine-aspartic acid) occuring in natural ligands of integrins like fibronectin or vitronectin.

Solvable RGD containing linear or cyclic peptides are able to inhibit interactions of this integrins with their corresponding natural ligands.

The abbreviations for the amino acid residues used hereinafter are shown in the following table :

Ala A alanine Arg R arginine Asp D aspartic acid D-homoPhe D-homo-phenylalanine D-Nal D-3- (2-naphthyl) alanine D-Phe D-phenylalanine D-Phg D-phenylglycine D-Trp D-tryptophan D-Tyr D-tyrosine Gly G glycine 4-Hal-Phe 4-halo-phenylalanine homoPhe homo-phenylalanine<BR> Ile I isoleucine Leu L leucine Nal 3-(2-naphthyl) alanine Nle norleucine Phe F phenylalanine Phg phenylglycine Trp W tryptophan Tyr Y tyrosine Val V valine.

Particularly preferred as avß3 and/or αvß5 inhibitors to be used in the method for prophylaxis and/or treatment of eye diseases are compounds of formula I cyclo-(Arg-Gly-Asp-D-(A)nE) I, in which

D is D-Phe, Phe, D-Trp, Trp, D-Tyr, Tyr, D-homoPhe, homoPhe, D-Nal, Nal, D-Phg, Phg or 4-Hal-Phe (D or L form), in which Hal is F, Cl, Ber, 1, E is Val, Gly, Ala, Leu, lle or Nie, A is alkyl having 1-18 carbon atoms and n is 0 or 1 and also their physiologically acceptable salts.

In formula I alkyl is preferably methyl, ethyl, isopropyl, n-butyl, sec-butyl or tert-butyl.

More particular preferred polypeptides are used as tCVß3 and/or ccvß5 inhibitors in the method of the invention that can be expressed by the subformula la, which otherwise corresponds to the formula I but in which D isD-Phe and E isGly, Ala, Val, Leu, Ile or Nie.

Furthermore, particular preference is given to the use of all physiologically compatible salts of the compounds which come under the subformula la.

Most preferred as active compound in said method are cyclo- (Arg-Gly-Asp- DPhe-Val) and cyclo- (Arg-Gly-Asp-DPhe-NMeVal).

This RGD-containing peptides described by formula I as well as the peptides specifically mentioned hereinbefore are disclosed in EP 0 770 622 A2, the disclosure of which is hereby incorporated to the present application by reference. Accordingly, the meaning of the substituents of formula I resp.

subformula la are the same as defined for the substituents of subformula la resp. subformula Ib as disclosed on page 5, line 24 to line 32 resp. page 5, line 33 to line 41 in EP 0 770 662 A2.

It has been found that inhibitors of αvß3 and/or αvß5 integrin receptors which are no polypeptides and do not contain the RGD sequence can also be used for prophylaxis and treatment of diseases of the eye of a patient resulting from angiogenesis in the eye by injecting the inhibitor into the subTenon's space of the eye.

Therefore, in one further preferred embodiment of the method of invention the αvß3 and/or αvß5 inhibitors to be used in the method for prophylaxis or treatment of eye diseases are compounds of formula 11 wherein R'is H, alkyl having 1-6 C atoms or benzyl, R2 is R10, CO-R10, COOR6, COOR10, SO2R6 or S02R'°, R3 is H, Hal, OA, NHR'°, N (R10) 2,-NH-acyl,-O-acyl, CN, NO2, OR, Sur", R2 or CONHR10, R4 is H, =0, =S, C,-C6-alkyl or acyl, R5 is NH2, H2N-C (=NH) or H2N- (C=NH)-NH, where the primary amino groups can also be provided with conventional amino protective groups or can be mono-, di-or trisubstituted by R10,

CO-R10, COOR10 or SO2R10, or R6, R7, R8 are each independently of one another absent or H, R7 and R8 together are also a bond, X, Y are each independently of one another =N-,-N-, O, S,-CH2-or =C-, with the proviso that at least one of the two definitions X, Y is =N-,-N-, O or S, W, Z are each independently of one another absent, O, S, NR1, C (=O), CONH, NHCO, C (=S) NH, NHC (=S), C (=S), SO2NH, NHSO2 or CA=CA', R6 is a mono-or binuclear heterocycle which has 1 to 4 N, O and/or S atoms and can be unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, R9 is H, Hal, OA, NHA, NAA', NHacyl, Oacyl, CN, NO2, SA, SOA, SOYA, SO2Ar or SO3H, Rlo is H, A, Ar or aralkyl having 7-14 C atoms, R"is H or alkyl having 1-6 C atoms, A, A'are each independently of one another H or unsubstituted or mono-, di- or tri-R9-substituted alkyl or cycloalkyl, each of which has 1-15 C atoms and in which one, two or three methylene groups can be replaced by N, O and/or S, Ar is unsubstituted or mono-, di-or tri-A-and/or R9-substituted mono-or binuclear aromatic ring system having 0,1, 2,3 or 4 N, O and/or S atoms, Hal is F, Cl, Br or I and m, n are each independently of one another 0,1, 2,3 or 4, and the physiologically acceptable salts thereof.

Particularly preferred αvß3 and/or αvß5 inhibitors are used in the method of invention that can be expressed by the subformulae IIa to IIg, which otherwise corresponds to the formula 11 but in which in Ila) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 is H, R4 is H or =O, R5 is H2N-C (=NH) or H2N-C (=NH) -NH, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y isNHorO, R'° is H, A or benzyl, R"is H, A is unsubstituted alkyl or cycloalkyl with 1-15 C atoms and m, n are each independently of one another 0,1 or 2; in IIb) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 is H, R4 is H or =O, R5 is R6, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y is NH or O, R5 is a mono-or binuclear heterocycle which has 1-4 N, O and/or S atoms and which can be

unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, R'° is H, A or benzyl, R"is H, A is unsubstituted alkyl or cycloalkyl with 1-15 C atoms and m, n are each independently of one another 0,1 or 2; in tic) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R R3 is H, R4 is H or =O, R5 is H2N-C (=NH) or H2N-C (=NH) -NH, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y isNHorO, A is alkyl with 1-6 C atoms, RIO is H, alkyl with 1-6 C atoms, camphor-10-yl or benzyl, R"is H, m, n are each independently of one another 0,1 or 2; in IId) Ra is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 is H, R4 is H or =O, R5 is R6, W, Z are each independently of one another

absent, C (=O), NH, CONH or NHCO, X is =NH-, O or -CH2-, Y is NH or O, R6 is a mono-or binuclear heterocycle which has 1-4 N, O and/or S atoms and which can be unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, R10 is H, alkyl with 1-4 C atoms, camphor-10-yl or benzyl, R"is H, A is unsubstituted alkyl with 1-6 C atoms and m, n are each independently of one another 0,1 or 2; in Ile) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 isH, R4 is H or =O, R5 is R6, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y isNHorO, R6 is 1H-imidazol-2-yl, thiazol-2-yl, 1H-benzimidazol-2- yl, 2H-pyrazol-2-yl, 1H-tetrazol-5-yl, 2-imino- imidazolidin-4-on-5-yl, 1-A-1,5-dihydro-imidazol-4- on-2-yl, pyrimidin-2-yl or 1,4, 5,6-tetrahydro- pyrimidin-2-yl, Rlo is H, alkyl with 1-4 C atoms, camphor-10-yl or benzyl,

R"is H, A is unsubstituted alkyl with 1-6 C atoms and m, n are each independently of one another 0,1 or 2; in f) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 is H, R4 is H or =O, R5 is H2N-C (=NH) or H2N-C (=NH) -NH, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y isNHorO, RIO is Ar, R"is H, A is unsubstituted alkyl or cycloalkyl with 1-15 C atoms and m, n are each independently of one another 0,1 or 2; in lig) R'is H or alkyl with 1-6 C atoms, R2 is R10, CO-R10, COOR10 or SO2R10, R3 is H, R4 is H or =O, R5 is R6, W, Z are each independently of one another absent, C (=O), NH, CONH or NHCO, X is-NH-, O or -CH2-, Y isNHorO, R6 is a mono-or binuclear heterocycle which has 1-4 N, O and/or S atoms and which can be

unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, R'° is Ar, R"is H, A is unsubstituted alkyl or cycloalkyl with 1-15 C. atoms and m, n are each independently of one another 0,1 or 2.

The compounds of formula II and subformulae IIa to IIg have been disclosed in DE 197 05 450 A1, the whole disclosure of which is hereby incorporated to the present application by reference. Accordingly, the substituents of formula 11 resp. subformulae Ila to lig have the same meaning as defined for the substituents of formula I resp. subformulae la to Ig as disclosed on page 2, lines 3 to 43 resp. page 5, line 58 to page 7, line 30 of DE 197 05 450 A1.

The definitions for the substituents are given on page 4, line 35 to page 5, line 56 of DE 197 05 450 A1.

More particularly preferred one of the following avß3 and/or av5 inhibitors is used in the method of the present invention: (2S)-2-[(R)-camphor-10-sulfonamido]-3-{3, 4-dihydro-2-(3-guanidino- propyl)-(2R)-2H-1,4-benzoxazin-3-one-6-yl}propionic acid; (2S)-2-benzyloxycarboxamido-3- (2-guanidinomethyl-1, 4-benzodioxan-6- yl) propionic acid; (2S)-2-tert-butyloxycarboxamido-3- [3, 4-dihydro-2- (2-guanidino-2- oxoethyl)-2H-1, 4-benzoxazin-3-on-6-yl] propionic acid; (2S)-2-benzyloxycarboxamido-3- (2-guanidinoacet-amidomethyl-1, 4- benzodioxan-6-yl) propionic acid; (2S)-2-tert-butyloxycarboxamido-3- {3, 4-dihydro-2- [N- (2-imidazolyl)-

carbamoylmethyl]-2H-1, 4-benzox-azin-3-on-6-yl) propionic acid; (2S)-2-tert-butyloxycarboxamido-3- {3, 4-dihydro-2- [N- (2-benzimidazolyl)- carbamoylmethyl]-2H-1, 4-benzoxazin-3-on-6-yl) propionic acid; (2S)-2-tert-butyloxycarboxamido-3-{3, 4-dihydro-2-[2-(2-imino-4- oxoimidazolidin-5-yl)etyl]-2H-1,4-benzoxazin-3-on-6-yl}-prop ionic acid; (2S)-2- (2, 2-dimethylpropyloxycarboxamido)-3- 3, 4-dihydro-2- [N- (2-<BR> imidazolyl) carbamoylethyl]-(2S)-2H-1, 4-benzoxazin-3-on-6-yl} propionic acid ;<BR> (2S)-2-[(R)-camphorsulfonamido]-3-{3, 4-dihydro-2-[N-(2- benzimidazolyl) carbamoylmethyl]-2H-1, 4-benzoxazin-3-on-6-yl) propionic acid and their physiologically acceptable salts.

Most preferred are (2S)-2- (2, 2-dimethylpropyloxycarboxamido)-3- {3, 4-dihydro-2- [N- (2- imidazolyl) carbamoyl-ethyl]-(2S)-2H-1, 4-benzoxazin-3-on-6-yl} propionic acid and (2S)-2-[(R)-camphorsulfonamido]-3-{3, 4-dihydro-2-[N-(2-benzimidazolyl)- carbamoylmethyl]-2H-1, 4-benzoxazin-3-on-6-yl) propionic acid: In one further preferred embodiment of the method of invention the cc,, 3 and/or αvß5 inhibitors to be used in the method for prophylaxis or treatment of eye diseases are compounds of formula III

in which R1 is CH2OR10, COOR10, CONHR10 or CON R12)2, R2 is R10, CO-R10, CO-R6, COOR6, -COOR10, SO2R6, SO2R0, CONHR6, CON (R6)2, CONHR10 or CON (R12)2, R3 is H, Hal, NHR10, N (R12)2, NH-acyl, -O-acyl, CN, NO2, OR10, SR10, SO2R10, SO3R10, COOR10, CONHR, CON (R6)2, CONHR10 or CON (R12)2, R4 is H, A, Ar or aralkylene having 7-14 C atoms, R5 is NH2, H2N-C (=NH) or H2N- (C=NH)-NH, where the primary amino groups can also be provided with conventional amino protective groups, or can be mono-di-or trisubstituted by RIO, CO-R10, COOR10 or SO2R10, or R6-H-, R6 is a mono-or binuclear heterocycle having 1 to 4 N, O and/or S atoms, which can be unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, R7, R8 in each case independently of one another is absent or is H, R7 and R8 together are also a bond, Z is absent, O, S, NH, NR', C (=O), CONH, NHCO, C (=S) NH, NHC (=S), C (=S), SO2NH, NHSO2 or CA=CA', R9 is H, Hal, OR", NH2, NHR12, N (R12)2, NHAcyl, OAcyl, CN, NO2, SR11, SOR12, SO2R12 or SO3H, Rlo is H, A, Ar or aralkylene having 7-14 C atoms,

R"is H or alkyl with 1-6 C atoms, R12 is alkyl having 1-6 C atoms, A is H or alkyl having 1-15 C atoms or cycloalkyl having 3-15 C atoms, which is unsubstituted or is mono-, di-or trisubstituted by R9 and in which one, two or three methylene groups can also be replaced by N, O and/or S, Ar is a mono-or binuclear aromatic ring system having 0,1, 2,3 or 4 N, O and/or S atoms, which is unsubstituted or mono-, di-or trisubstituted by A and/or R9, Hal is F, Cl, Br or 1, m, n in each case independently of one another are 0,1, 2,3 or 4, and their physiologically acceptable salts and solvates.

In this embodiment of the method of the present invention particularly preferred αvß3 and/or αvß5 inhibitors are used that can be expressed by the subformulae Illa to Illn, which otherwise correspond to formula III but in which in Illa) R3 is H; in IIIb) R3 is H and R2 is COOR10 or SO2R10 ; in Illc) R3 is H, R2 is COOR'° or S02R'° and R10 is H, A, Ar or aralkylene having 7-14 C atoms; in IIId) m is 0;

in IIIe) m is 0 and R3 is H ; in IIIf) R3 is H, R2 is COOR10 or SO2R10 and m is 0 ; in IIIg) R3 is H, R2 is COOR10 or SO2R10 and R10 is H, A, Ar or aralkylene with 7-14 C atoms and m is 0 ; in IIIh) R3 is H, R2 is COOR10 or SO2R10 and R10 is H, A, Ar or aralkylene having 7-14 C atoms and A is H or unsubstituted alkyl having 1-15 C atoms or cycloalkyl having 3-15 C atoms; Ar is phenyl or naphthyl and m is 0 ; in Illi) R3 is a mono-or binuclear heterocycle having 1 to 4 N atoms, which can be unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, in lllj) R 3 is H, R2 is COOR10 or SO2R10 and R10 is H, A, Ar or aralkylene having 7-14 C atoms and m is 0 ;

R6 is a mono-or binuclear heterocycle having 1 to 4 N atoms, which can be unsubstituted or mono-, di-or trisubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O ; in Ilik) Z is absent; in IIII) Z is absent and R3 is H; in IIIm) Z is absent, R3 is H and R2 is COOR10 or SO2R10 ; in IIIn) Z is absent, R3 is H, R4 is H, R2 is COOR10 or SOR10 ; 'RIO is H, A, Ar or aralkylene having 7-14 C atoms, R6 is a mono-or binuclear heterocycle having 1 to 4 N atoms, which can be unsubstituted or mono-, or risubstituted by Hal, A, -CO-A, OH, CN, COOH, COOA, CONH2, NO2, =NH or =O, A is H or unsubstituted alkyl having 1-6 C atoms, Ar is phenyl or naphthyl and m is 0.

The compounds of formula III and subformulae IIIa to Illn have been disclosed in WO 00/26212 A1, the whole disclosure of which is incorporated to the present application by reference. Accordingly, the substituents of

formula III resp. subformulae Illa to Illn have the same meaning as defined for the substituents of formula I resp. subformulae la to In as disclosed on page 1, line 5 to page 2, line 31 resp. page 13, line 20 to page 15, line 6 of WO 00/26212 A1. The definitions for the substituents are given on page 8, line 18 to page 13, line 10 of WO 00/26212 A1.

More particularly preferred one of the following αvß3 and/or αvß5 inhibitors is used in this embodiment of the method of the present invention: (2S)-3- [2- (3-aminopropyl)-4-oxo-4H-chromen-6-yl]-2- (2, 2- dimethylpropoxycarboxamido)-propionic acid ; (2S)-3- {2- [3- (1 H-imidazol-2-ylamino) propyl]-4-oxo-4H-chromen-6-yl}- 2-(2, 2-dimethylpropoxycarboxamido) propionic acid ; (2S)-3-{2-[3-(1H-imidazol-2-ylamino)propyl]-4-oxochroman-6-y l}-2- (2, 2-dimethylpropoxycarboxamido) propionic acid ; (2S)-3- {2- [3- (pyridin-2-ylamino) propyl]-4-oxo-4H-chromen-6-yl}-2- (2, 2- dimethylpropoxycarboxamido) propionic acid ; (2S)-3- {2- [3- (1 H-benzimidazol-2-ylamino) propyl]-4-oxo-4H-chromen- 6-yl}-2-(2, 2-dimethylpropoxycarboxamido) propionic acid; (2S)-3- {2- [3- (1 H-imidazol-2-ylamino) propyl]-4-oxo-4H-chromen-6-yl}- 2-butylsulfonamidopropionic acid ; (2S)-3- {2- [3- (pyridin-2-ylamino) propyl]-4-oxo-4H-chromen-6-yl}-2- (2,4, 6-trimethylphenyl) sulfonamidopropionic acid or their physiologically acceptable salts and solvates.

Most preferred are (2S)-3- {2- [3- (1 H-imidazol-2-ylamino) propyl]-4-oxo-4H-chromen-6-yl}- 2-butylsulfonamidopropionic acid and

(2S)-3-{2-[3-(pyridin-2-ylamino)propyl]-4-oxo-4H-chromen-6-y l}-2- (2,4, 6-trimethylphenyl) sulfonamidopropionic acid.

In one further preferred embodiment of the method of invention the 03 and/or OCVß5 inhibitors to be used in the method for prophylaxis or treatment of eye diseases are compounds of formula IV wherein A and B are each independently of one another O, S, NH, NR7, CO, CONH, NHCO or directly bond, X is alkylen having 1-2 C atoms, which is unsubstituted or monosubstituted by R4 or R5 or a direct bond, R'is H, Z or-(CH2) 0-Ar, R2 is H, R7 or -C(O) Z, R3 is NHR6,-NR6-C (=NR6)-NHR6,-C (=NR6)-NHR6,-NR6- C (=NR9)-NHR6,-C (=NR9)-NHR6 or Het', R4 or R5 are each indipendently of one another H, oxo, R7, -(CH2)o-Ar, -C(O-(CH2)o-Ar, -C(O)-(Ch2)o-R7, -C(O)-(CH2)o-Het, Het, NHR6, NHAr, NH-Het, OR7, OAr, OR6 or O-Het, R6 is H, -C (O) R',-C (O)-Ar, R7, COOR7, COO- (CH) o-Ar, SO2-Ar, S02R'or SO2-Het,

R7 is alkyl having 1 to 10 C atoms or cycloalkyl having 1 to 10 C atoms, R8 is Hal, NO2, CN, Z, -(CH2)o-Ar, COOR12, OR1, CF3, OCF3, SO2R1, NHR', N (R') 2, NH-C (O) R1, NHCOOR'or C (O) R1, R9 is CN or NO2, Z is alkyl having 1 to 6 C atoms, Ar is aryl, which is unsubstituted or substituted by R8 Hal is F, Cl, Br or 1, Het is saturated, partly of fully saturated mono-or bicyclic heterocyclic ring system having 5 to 10 atoms, which can contain 1 or 2 N atoms and/or 1 or 2 S or O atoms and wherein the heterocyclic ring system can be mono-or disubstituted by Ru, Het1 is a mono or bicyclic aromatic heterocyclic ring system having 1 to 4 N atoms, which can be unsubstituted or mono-or disubstituted by Hal, R', OR', CN, NHZ or NO2, n is 0, 1 or 2 m is 0, 1,2, 3,4, 5 or 6, o is 0,1 or 2 as well as their physiologically acceptable salts and solvates.

In this embodiment of the method of invention particularly preferred 06vß3 and/or OCVß5 inhibitors are used that can be expressed by the subformulae IVa to IVi, which otherwise correspond to formula IV but in which in Va X is a direct bond

in IVb X is a direct bond, R2 is H, R5 is H and R4 is Ar in IVc X is a direct bond, R6 is H and R4 is Ar or Het; in IVd X is a direct bond, R5 is H, B is O, A is NH, n is 0, m is 3 or 4, R3 is Het and

in IVe X is a direct bond, R5 is H, B isO, A is NH, n is 0, m is 3 or 4 and R3 is Het in IVf X is methylene, which is unsubstituted or substituted by Ar, R2 is H, R5 is H oder Ar and R4 is oxo

in IVg X is methylene, in IVh X is methylene, R4 is H or Ar, R5 is H or Ar and R2 isH ; in IVi X is methylene, R4 is H or Ar, R5 is H or Ar, B is O, A is NH, n is 0, m is 3 or4 R3 is Het and

More particularly preferred the αvß3 and/or αvß5 inhibitor according to formula IV to be used in the method of the present invention is: 3-phenyl-3- {6- [3- (pyridine-2-ylamino)-propoxy]-1 H-indole-3-yl}-propionic acid; 3-phenyl-3- {6- [4- (pyridine-2-ylamino)-butoxy]-l H-indole-3-yl}-propionic acid; 3-phenyl-3- 5- [4- (pyridine-2-ylamino)-butoxy]-1 H-indole-3-yl}-propionic acid; 3-phenyl-3- {5- [3- (pyridine-2-ylamino)-propoxy]-l H-indole-3-yl}-propionic acid; 3-phenyl-3- [6- (pyridine-2-yl-amidocarboxymethoxy)-indole-3-yl]-propionic acid; 3-phenyl-3-[6-(benzimidazole-2-yl-amidocarboxymethoxy)-indol e-3-yl]- propionic acid 3-phenyl-3-[6-(imidazole-2-yl-amidocarboxymethoxy)-indole-3- yl]- propionic acid or 3-Benzo [1,2, 5] thiadiazol-5-yl-3-{6-[2-(6-methylamino-pyridin-2-yl)- ethoxy]-1 H-indol-3-yl}-propionic acid as well as their physiologically acceptable salts and solvates.

Most preferred the αvß3 and/or αvß5 inhibitor according to formula IV to be used in the method of the present invention is 3-phenyl-3- {6- [3- (pyridine-2-ylamino)-propoxy]-1 H-indole-3-yl}-propionic acid or 3-Benzo [1,2, 5] thiadiazol-5-yl-3- {6- [2- (6-methylamino-pyridin-2-yi)- ethoxy]-1 H-indol-3-yl}-propionic acid.

This compounds as well as the compounds of formula IV and subformulae IVa to IVi are disclosed in copending german patent application no. 100 06 139.7, the whole disclosure of which is hereby incorporated to the present application by reference. Accordingly, the substituents of formula IV and subformulae IVa to IVi have the same meaning as defined for the substituents of formula I resp. subformulae la to li as disclosed on page 1, line 3 to page 2, line 13 resp. page 17, line 4 to page 20, line 9 of german patent application no. 100 06 139.7. The definitions for the substituents are given on page 9, line 6 to page 16, line 28 of german patent application no.

100 06 139.7.

The particular suitability of the compounds as described hereinbefore for using in the method of treatment of eye diseases was experimentally confirmed for some representative compounds.

It is a further object of the invention to provide a composition suitable for the method for prophylaxis and treatment of diseases of the eye of a patient resulting from angiogenesis comprising injecting into the subTenon's space of the eye of said patient a composition comprising a therapeutically effective amount of an ag and/or ag inhibitor sufficient to inhibit angiogenesis of the eye.

The formulation used for administration of the compound into the subTenon's space of the eye can be any form suitable for application into the subTenon's space by injection through a cannula with small diameter suitable for injection into the subTenon's space. Examples for injectable application forms are solutions, suspensions or colloidal suspensions.

Compositions usable for injection into the subTenon's space contain a physiologically tolerable carrier together with the relevant agent as described herein, dissolved or dispersed therein as an active ingredient. As used herein, the term"pharmaceutically acceptable"refers to compositions, carriers, diluents and reagents which represent materials that are capable of administration into the subTenon's space of a mammal without the production of undesirable physiological effects. The preparation of a injectable pharmacological composition that contains active ingredients dissolved or dispersed therein is well understood in the art and need not be limited based on formulation. The preparation can also be emulsified. The active ingredient can be mixed with excipients which are pharmaceutically acceptable and compatible with the active ingredient and in amounts suitable for use in the therapeutic methods described herein.

Suitable excipients are, for example, water, saline, sorbitol, glycerol or the like and combinations thereof. In addition, if desired, the composition can contain minor amounts of auxiliary substances such as wetting or emulsifying agents, pH buffering agents, and the like which enhance the effectiveness of the active ingredient. The composition can also contain viscosity enhancing agents like hyaluronic acid. The therapeutic composition of the present invention can include pharmaceutical acceptable salts of the components therein. Pharmaceutical acceptable salts include the acid addition salts that are formed with inorganic acids such as, for example, hydrochloric or phosphoric acids, or such organic acids as acetic, tartaric, mandelic and the like. Salts formed with the free carboxyl groups can also

be derived from inorganic bases such as, for example, sodium, potassium, ammonium, calcium or ferric hydroxides, and such organic bases as isopropylamine, trimethylamine, 2-ethylamino ethanol, histidine, procaine and the like. Particularly preferred is the HCI salt.

Physiologically tolerable carriers are well known in the art. Exemplary of liquid carriers are sterile aqueous solutions that contain no materials in addition to the active ingredients and water, or contain a buffer such as sodium phosphate at physiological pH value, physiological saline or both, such as phosphate-buffered saline. Still further, aqueous carriers can contain more than one buffer salt, as well as salts such as sodium and potassium chlorides, sorbitol and other solutes.

Depending from the application form the active compound liberates in an immediate or a sustained release manner. A sustained release formulation is preferred because the injection frequency can be reduced.

One possibility to achieve sustained release kinetics is embedding or encapsulating the active compound into nanoparticles. Nanoparticles can be administrated as powder, as powder mixture with added excipients or as suspensions. Colloidal suspensions of nanoparticles are preferred because they can easily be administrated through a cannula with small diameter.

Nanoparticles are particles with a diameter from about 5 nm to up to about 1000 nm. The term"nanoparticles"as it is used hereinafter refers to particles formed by a polymeric matrix in which the active compound is dispersed, also known as,, nanospheres, and also refers to nanoparticles which are composed of a core containing the active compound which is surrounded by a polymeric membrane, also known as"nanocapsules". For administration into the subTenon's space of the eye nanoparticles are preferred having a

diameter from about 50 nm to about 500 nm, in particular from about 100 nm to about 200 nm.

Nanoparticles can be prepared by in situ polymerization of dispersed monomers or by using preformed polymers. Since polymers prepared in situ are often not biodegradable and/or contain toxicological serious byproducts nanoparticles from preformed polymers are preferred. Nanoparticles from preformed polymers can be prepared by different techniques, i. e. by emulsion evaporation, solvent displacement, salting-out and by emulsification diffusion.

Emulsion evaporation is the classical technique for preparation of nanoparticles from preformed polymers. According to this technique, the polymer and the active compounds are dissolved in a water-immiscible organic solvent, which is emulsified in an aqueous solution. The crude emulsion is then exposed to a high-energy source such as ultrasonic devices or passed through high pressure homogenizers or microfluidizers to reduce the particle size. Subsequently the organic solvent is removed by heat and/or vacuum resulting in formation of the nanoparticles with a diameter of about 100 nm to about 300 nm. Usually, methylene chloride and chloroform are used as organic solvent because of their water insolubility, good solubilizing properties, easy emulsification and high volatility. These solvents are, however, critical in view of their physiological tolerability.

Moreover, the high shear force needed for particle size reduction can lead to damage of polymer and/or the active compound.

The solvent displacement process was firstly described in EP 0 274 961 A1.

In this process the active compound and the polymer are dissolved in an organic solvent which is miscible with water in all proportions. This solution is introduced in an aqueous solution containing a stabilizer under gentle

agitation resulting in spontaneous formation of nanoparticles. Examples for suitable organic solvents and stabilizer are acetone or ethanol resp. polyvinyl alcohol. Advantageously chlorinated solvents and shear stress can be avoided. The mechanism of formation of nanoparticles has been explained by interfacial turbulence generated during solvent displacement (Fessi H. et al., Int. J. Pharm. 55 (1989) R1-R4). Recently, a solvent displacement technique was disclosed by WO 97/03657 A1, in which the organic solvent containing the active compound and the polymer is introduced into the aqueous solution without agitation.

The salting-out technique was firstly described in WO 88/08011 A1. In this technique a solution of a water-insoluble polymer and an active compound in a water-soluble organic solvent, especially acetone, is mixed with a concentrated aqueous viscous solution or gel containing a colloidal stabilizer and a salting-out agent. To the resulting oil-in-water emulsion water is added in a quantity sufficient to diffuse into the aqueous phase and to induce rapid diffusion of the organic solvent into the aqueous phase leading to interfaciale turbulence and formation of nanoparticles. The organic solvent and the salting-out agent remaining in the suspension of nanoparticles are subsequently eliminated by repeated washing with water. Alternatively, the solvent and salting-out agent can be eliminated by cross-flow filtration.

In emulsification-diffusion process the polymer is dissolved in a water- saturated partially water-soluble organic solvent. This solution is mixed with an aqueous solution containing a stabilizer resulting in an oil-in-water emulsion. To this emulsion water is added causing the solvent to diffuse into the aqueous external phase accompanied with formation of nanoparticles.

During particle formation each emulsion droplet leads to several nanoparticle. As this phenomenon cannot be fully explained by convection effect caused by interfacial turbulence, it has been proposed that diffusion of

organic solvent from the droplets of the crude emulsion carries molecules of active compound and polymer phase into the aqueous phase resulting in supersaturated local regions, from which the polymer aggregates in the form of nanoparticles (Quintanar-Guerrero D. et al. Colloid. Polym. Sci. 275 (1997) 640-647). Advantageously, pharmaceutical acceptable solvents like propylene carbonate or ethyl acetate can be used as organic solvents.

With the methods described above nanoparticles can be formed with various types of polymers. For use in the method of the present invention, which involves injection of the formulation into the subTenon's space of the eye, nanoparticles made from biocompatible polymers are preferred. The term ,, biocompatible" refers to material which, after introducing in a biological environment, have no serious effects to the biological environment. From biocompatible polymers those polymers are especially preferred which are also biodegradable. The term"biodegradable"refers to material which, after introducing in a biological environment, is enzymatically or chemically degraded into smaller molecules which can be eliminated subsequently.

Biodegradable polymers are well known by the person skilled in the art.

Examples are polyesters from hydroxycarboxylic acids such as poly (lactic acid) (PLA), poly (glycolic acid) (PGA), polycaprolactone (PCL), copolymers of lactic acid and glycolic acid (PLGA), copolymers of lactic acid and caprolactone, polyepsilon caprolactone, polyhyroxy butyric acid and poly (ortho) esters, polyurethanes, polyanhydrides, polyacetals, polydihydropyrans, polycyanoacrylates, natural polymers such as alginate and other polysaccharides including dextran and cellulose, collagen and albumin.

Liposomes are a further drug delivery system which is easily injectable.

Accordingly, in the method of invention the active compounds can also be

administered into the subTenon's space of the eye in the form of a liposome delivery system. Liposomes are well-known by a person skilled in the art.

Liposomes can be formed from a variety of phospholipids, such as cholesterol, stearylamine of phosphatidylcholines. Liposomes being usable for the method of invention encompass all types of liposomes including, but not limited to, small unilamellar vesicles, large unilamellar vesicles and multilamellar vesicles.