An antibody that binds to proprotein convertase subtilisin/kexin type 9 (PCSK9), wherein the antibody comprises: a heavy chain variable region, and a light chain variable region, wherein the heavy chain variable region and the light chain variable region each comprise the following three complementarity determining regions (CDRs): CDR1, CDR2 and CDR3; wherein: i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:6; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:9; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:20; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:23; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26, or wherein: i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:7; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:10; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:12 or SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:21; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:24; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26. a heavy chain variable region, and a light chain variable region, wherein the heavy chain variable region and the light chain variable region each comprise the following three complementarity determining regions (CDRs): CDR1, CDR2 and CDR3; wherein: i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:6; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:9; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:20; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:23; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26, or wherein: i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:7; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:10; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:12 or SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:21; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:24; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26. i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:6; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:9; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:20; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:23; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26, i) the CDR1 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:7; ii) the CDR2 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:10; iii) the CDR3 of the heavy chain variable region comprises the amino acid sequence of SEQ ID NO:12 or SEQ ID NO:13; iv) the CDR1 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:21; v) the CDR2 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:24; and vi) the CDR3 of the light chain variable region comprises the amino acid sequence of SEQ ID NO:26.