Fibers comprising polyesteramide copolymers for drug delivery

A method comprising the step of treating a condition associated with the eye in a patient suffering therefrom by degrading hydrolytically via bulk erosion a fiber implanted in the patient, the fiber comprising a bioactive agent and a biodegradable poly(esteramide) copolymer (PEA) according to structural Formula (IV),

• wherein
• m+p is from 0.9 to 0.1 and q is from 0.1 to 0.9;
• m+p+q=1, whereby m and p are each greater than 0;
• n is about 5 to about 300;
• a is at least 0.05, b is at least 0.05, a+b=1, qa=q*a, and qb=q*b;
• wherein units of m, units of p, units of qa, and units of qb are all randomly distributed throughout the copolymer;
• R1 is (C2-C20) alkylene;
• R3 and R4 may be the same or different and are each selected from the group consisting of hydrogen, —CH3, —CH(CH3)2, —CH(CH3)—CH2—CH3, —CH2—CH(CH3)2, —CH2—C6H5, (CH3)2CH—CH2—, and —(CH2)2S(CH3);
• R5 is (C2-C20)alkylene;
• R6 is according to structural Formula (III);
• R7 is (C6-C10)aryl(C1-C6)alkylene;
• and
• R8 is (C2-C20)alkylene.