Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

The null hypothesis was to assume that there was no difference between the pegaptanib sodium and sham injection groups. The alternative was to assume that there was difference between the pegaptanib sodium and sham injection groups.

Stratification factors (HbA1c and baseline visual acuity categories)

Significance level of test in the comparison between pegaptanib sodium 0.3 mg and sham was set to 0.05.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).

Sham injection was conducted during the double masked phase (up to Week 24) according to the identical procedure of pegaptanib sodium administration, with exceptions of no needle used and no medication. Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks in participants who were originally randomized to Sham and entered in the open phase (Week 24 to Week 54). Total number of injection was 5 times in the open phase.

Pegaptanib sodium 0.3 milligrams were administered as an intravitreous injection every 6 weeks. Total number of injections were 4 times in the double masked phase (up to Week 24) and 5 times in the open phase (from Week 24 to Week 54).