a placebo-controlled study using vp-102 in the treatment of external genital warts

Conditions: Condylomata Acuminata; Papillomavirus Infections; Skin Diseases, Viral; Skin Diseases, Infectious; Skin Diseases; Sexually Transmitted Diseases, Viral; Sexually Transmitted Diseases; Warts

Summary: this is a phase 2, double-blind, placebo-controlled study to determine the dose regimen, safety, tolerability, and efficacy of vp-102 in subjects with external genital warts (egw). this study is divided into two parts (part a and part b). increasing durations of skin exposure to study drug (vp-102 or placebo) will be evaluated in three treatment groups prior to progressing to enrollment in part b. part a \& b will enroll a approximately 108 subjects completing 4 treatment applications every 21 days and continuing with follow-up assessments at day 84, 112 and 147.

this study is to determine the dose regimen, efficacy, safety, and tolerability of vp-102 in subjects with external genital warts. it is divided into two parts (part a and part b). the aim of part a is to determine the two best treatment regimens for evaluation of safety and efficacy in part b.in part a, study drug (vp-102 or placebo) will be administered once every 21 days for up to four applications. enrollment will begin in group 1, then proceed into group 2, and lastly into group 3. a safety review will be conducted to determine whether enrollment can be initiated into the next group. an additional blinded safety review will be performed after all six subjects in group 3 have completed the 48-hour visit, in order to support dose selection for part b (safety and efficacy). part b of the study will begin enrollment only after the sponsor has selected the two dose regimens from part a. the study will remain blinded until completion of both parts of the study. in part a, up to 18 subjects will be randomized to vp-102 or placebo treatment with three different regimens. when part b is open an additional \~90 subjects will be enrolled and randomized to vp-102 or placebo with two treatment regimens. two of the treatment arms will be vp-102 regimen 1 and vp-102 regimen 2. the other two treatment arms will be placebo (placebo regimen 1 and placebo regimen 2), with corresponding durations of skin exposure matching those selected for vp-102 regimen 1 and regimen 2. as an example, if the regimens selected from part a are the 2-hour and 6-hour applications of vp-102, then vp-102 regimen 1 would be vp-102 treatment for 2-hours and vp-102 regimen 2 would be vp-102 treatment for 6-hours. likewise, placebo regimen 1 would be placebo treatment for 2 hours and placebo regimen 2 would be placebo treatment for 6-hours. randomization of the four treatment arms (vp-102 regimen 1:vp-102 regimen 2:placebo regimen 1:placebo regimen 2) will be 3:3:2:2. in both regimen 1 and regimen 2, study drug will be administered to egw once every 21 days for up to four applications. subjects will be asked to remove the study drug at the designated time selected from the dose regimen findings in part a of the study. treatment will continue with a minimum of every 21 days, until complete clearance or a maximum of four treatment sessions. safety assessments including recording of local skin reactions are conducted at each treatment visit and at follow up visits day 84, 112, and 147.

Eligibility criteria:
key inclusion criteria: * be healthy, immunocompetent males or females ≥ 18 years of age * present with ≥ 2 and ≤ 30 external genital and/or perianal warts in ≥ 1 of the following anatomic areas: * in both sexes: medial thigh (except inguinal fold); supra-pubic, perineal, and perianal areas * in men: over the glans penis (excluding urethral meatus), penis shaft, scrotum, and foreskin * in women: vulva (excluding labia minora and mucosal surfaces) * have warts present for ≥ 4 weeks at the baseline visit * have warts that are ≤ 8 mm in diameter each key exclusion criteria: * have a wart within the allowed treatment area \> 8 mm in diameter or with an eroded or ulcerated surface, in the investigator's opinion * have an unclear diagnosis of condyloma * have any wart types other than genital warts (e.g., common or plantar warts) that require treatment during the study period * have active genital herpes eruption, or had active genital herpes lesions within 4 weeks before enrollment * have a history of neoplasia or other hpv-associated malignancies within the last 5 years * are systemically immunosuppressed * are sexually active or may become sexually active and are unwilling to practice responsible birth control methods * are pregnant or breastfeeding

Keywords: human papilloma virus (hpv) genital warts sexually transmitted disease (std) viral disease