Table 3.

Comparison among major series investigating intralesional therapies for Peyronie's disease

	Levine et al,14 2002	Hellstrom et al,28 2006	Bennett et al,25 2007	Present study
Patients, n	156	117	94	65
Drug	Verapamil	Interferon alfa2b	Verapamil	Hyaluronic acid
Dose	10 mg every 2 wk	2 × 106 U biweekly	10 mg every 2 wk	8 mg/wk
Study design	Prospective, non-randomized, single-arm study	Single-blinded, multicenter, placebo-controlled, parallel-group study	Prospective, non-randomized, single-arm study	Prospective, non-randomized, single-arm, multicenter, pilot study
Injections, n	12	6	6	10
Decrease in penile curvature, %	60	27	18	37
Increased sexual satisfaction, %	71	Not available	Monopoli	Monopoli
Decrease in plaque size, %	Not available	54.6	Not available	57