Cantharidin and Occlusion in Verruca Epithelium (COVE-1)

A Phase 2, Open Label Study to Evaluate the Efficacy, Safety and Tolerability of VP-102 in Subjects With Common Warts (Verruca Vulgaris)

This is a Phase 2, open label study (Study number VP-102-105; referred to as COVE-1 [Cantharidin and Occlusion in Verruca Epithelium]) to evaluate the efficacy, safety and tolerability of VP-102 treatment in subjects with common warts. This study has two Cohorts.

Study Overview

• Status: Completed
• Conditions: Skin Diseases; Virus Diseases; DNA Virus Infections; Skin Diseases, Infectious; Warts; Papillomavirus Infections; Skin Diseases, Viral; Tumor Virus Infections; Common Wart; Verruca Vulgaris; Warts Hand; Verruca
• Intervention / Treatment: Combination product: VP-102 Cantharidin topical film forming solution; Combination product: VP-102 Cantharidin, topical film forming solution

Detailed Description

The first Cohort (Cohort 1) utilizes a treatment interval of at least 14 days between treatments with longer treatment intervals being allowed depending on a specific patient's clinical response.Twenty Subjects (2 years and older) are targeted completing End of Study (EOS) visit in Cohort 1.

The second Cohort (Cohort 2) utilizes a treatment interval of 21 days between treatments. Paring of lesions is allowed. Approximately 35 subjects (12 years and older) will be enrolled in Cohort 2. Up to 4 sites will participate in the study.

• Study Type: Interventional
• Enrollment (Actual): 56
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Arkansas
    • Little Rock, Arkansas, United States, 72212
      • Cohort 2: Applied Research Center of Arkansas
  • Florida
    • Jacksonville, Florida, United States, 32256
      • Cohort 2: Solutions Through Advanced Research
  • Indiana
    • Plainfield, Indiana, United States, 46168
      • Cohort 2: The Indiana Clinical Trials Center
  • Michigan
    • Clarkston, Michigan, United States, 48346
      • Cohort 2: Clarkston Skin Research
  • North Carolina
    • Raleigh, North Carolina, United States, 27612
      • Cohort 1-Wake Research Associates

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years and older (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Be healthy, immunocompetent males or females at least 2 years of age and older for Cohort 1 and 12 years of age and older for Cohort 2.
2. Present with 1-6 common warts (verruca vulgaris) located anywhere on the body except for the following prohibited areas: the eye area (including eyelids), lips, oral cavity, nasal cavity, inside of the ears, palms of the hands, volar surface of the fingers or toes, under the finger nails (near and on the sides of the nails is allowed for Cohort 1, but warts near and on the sides of the nail (e.g., periungual) are not allowed in Cohort 2), soles of the feet, or the anogenital area. (Warts within 10 mm of a mucosal surface should not be treated).
3. Have warts that are ≤10 mm in diameter and ≤3 mm in height. (Subjects with warts that are adjacent, touching or clustered may be included so long as the combined diameter in the longest direction does not exceed 10 mm. Individual lesions that are adjacent, touching or clustered should be counted as distinct lesions for the purposes of tracking, inclusion and clearance)(subjects in Cohort 2 can be pared, when necessary and appropriate, prior to evaluating height eligibility) .
4. Have warts that have been present for at least 4 weeks at the time of the baseline visit.
5. Consent to having all warts treated (the physician must also be willing to treat all warts initially present).
6. Be otherwise medically healthy with no clinically significant medical history, physical examination or vital signs as determined by the investigator.
7. Be free of any systemic or dermatologic disorder, which, in the opinion of the investigator, will interfere with the study results or increase the risk of Aes.
8. Refrain from swimming, bathing or prolonged immersion in water or any liquids until the Study drug is removed.
9. Have the ability, or have a guardian with the ability, to follow study instructions and be likely to complete all study requirements.
10. Agree to use no wart-removing product (prescription or over-the-counter [OTC]) other than the Study drug during the course of the study.
11. Provide written informed consent or assent in a manner approved by the institutional review board (IRB) and/or have a parent/guardian provide written informed consent as evidenced by the signature on an IRB approved assent/consent form.
12. Provide written authorization for use and disclosure of protected health information.
13. If participating in the optional photographic portion of the study, agree to allow photographs of warts to be taken at each Treatment Visit by the research team and agree to share photos taken at home with the research team via text, email or in-person upload.

Exclusion Criteria:

1. Are unable to cooperate with the requirements or visits of the study, as determined by the investigator.
2. Are systemically immunosuppressed or have required, or will require, systemic immunosuppressive or immunomodulatory medication (including oral or parenteral corticosteroids) within 30 days prior to enrollment or during the course of the study. (Routine use of inhaled or intranasal corticosteroids during the study is allowed)
3. Have any chronic or acute medical condition that, in the opinion of the investigator, may interfere with the study results or place the subject at undue risk. (e.g., human immunodeficiency virus, systemic lupus erythematosus, viral hepatitis, uncontrolled diabetes). NOTE: Immunizations and flu shots may be administered throughout the study, but not within 5 days before or after treatment.
4. Have more than 6 common warts at baseline.
5. Present with any verruca plana, mosaiform, filiform, subungual (under the nail), genital or anal warts. In Cohort 2, subjects with periungual warts are also excluded.
6. Have any warts present at baseline in an anatomic location that the subject, parent/guardian or the physician is unwilling to treat or are located in an area that cannot be easily occluded with tape.
7. Have had any previous treatment of common warts including, but not limited to, the use of cantharidin, antivirals, retinoids, salicylic acid, lactic acid, hydrogen peroxide, candida antigen, diphencyprone, dinitrochlorobenzene, sandalwood oil, thuja oil, squaric acid dibutyl ester, povidone iodine, nitric oxide, curettage or freezing of warts in the past 14 days. In addition, these treatments or any other over-the-counter wart treatment should not be implemented during the course of the study.
8. Have been treated within 14 days with a product that contains cantharidin (topical or homeopathic preparations) for any reason prior to screening.
9. Have received another investigational product as part of a clinical trial within 30 days prior to the first application of the Study drug.
10. Currently have or have a history of epidermodysplasia verruciformis.
11. Have a history of illness or any dermatologic disorder, which, in the opinion of the investigator, will interfere with accurate assessment of the warts or increase the risk of adverse events.
12. Have an active malignancy or are undergoing treatment for any malignancy.
13. Have a history or presence of clinically significant medical, psychiatric, or emotional condition or abnormality that, in the opinion of the investigator, would compromise the safety of the subject or the quality of the data.
14. Have a history or presence of hypersensitivity or an idiosyncratic reaction to the Study drug or related compounds, or drug product excipients (acetone, ethyl alcohol, nitrocellulose, hydroxypropyl cellulose, castor oil, camphor, gentian violet, and denatonium benzoate).
15. Have a condition or situation that may interfere significantly with the subject's participation in the study (e.g., subjects who required hospitalization in the 2 months prior to screening for an acute or chronic condition including alcohol or drug abuse), at the discretion of the investigator.
16. Are sexually active or may become sexually active and are unwilling to practice responsible birth control methods. (e.g., combination of condoms and foam, birth control pills, intrauterine device, patch, shot and vaginal ring, etc.). Withdrawal is not an acceptable method of birth control. Females that have reached menarche must have a negative urine pregnancy test at each visit prior to treatment with Study drug.
17. Are pregnant or breastfeeding.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Sequential Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: VP-102; Open label of VP-102 cantharidin topical film forming solution, using the VP-102 applicator.

Combination product: VP-102 Cantharidin topical film forming solution; VP-102, a single-use drug device combination product containing (cantharidin) topical solution, 0.7% (w/v). Treatment interval of at least 14 days between treatments.; Other Names: VP-102-Cantharidin, film forming solution, VP-102 - Cohort 1; Combination product: VP-102 Cantharidin, topical film forming solution; VP-102, a single-use drug device combination product containing (cantharidin) topical solution, 0.7% (w/v). Treatment interval of at least 21 days between treatments.; Other Names: VP-102 Cantharidin, film forming solution, VP-102 - Cohort 2

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cohort 1: Proportion of Subjects Exhibiting Complete Clearance of All Treatable Warts (Baseline and New) at the EOS Visit (Day 84)	Cohort 1: Proportion of subjects exhibiting complete clearance of all treatable warts (baseline and new) at the EOS Visit (Day 84).	Treatment Visit Day 1 (Baseline) compared to Day 84 (EOS) Visit.
Cohort 2: Proportion of Subjects Exhibiting Complete Clearance of All Treatable Warts (Baseline and New) at the EOT Visit (Day 84)	Cohort 2: Proportion of subjects exhibiting complete clearance of all treatable warts (baseline and new) at the EOT Visit (Day 84).	Compare Treatment Visit 1 (Baseline) to EOT Visit (Day 84)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cohort 1: Change From Baseline in the Number of Treatable Warts (Baseline and New) at the EOS Visit (Day 84)	Cohort 1: Change from baseline in the number of treatable warts (baseline and new) at the EOS Visit (Day 84).	Change in the number of warts compared at Baseline (Visit 1) to the End of Study Visit (Day 84).
Cohort 1: Percent Change From Baseline in the Number of Treatable Warts (Baseline and New) at the EOT Visit (Day 84).	Cohort 1: Assessing the percent change from Baseline in the number of treatable warts (Baseline and new) at the EOT visit (Day 84).	Baseline (Visit 1) to End of Treatment Visit (Day 84).
Cohort 1: Proportion of Subjects Exhibiting Complete Clearance of All Treatable Warts (Baseline and New) at Visit 2, Visit 3, Visit 4 and Over the Duration of the Study	Cohort 1: Proportion of subjects exhibiting complete clearance of all treatable warts (baseline and new) at Visit 2, Visit 3, Visit 4 and over the duration of the study.	Baseline, Day 14, 28, 42 and 84 (EOS)
Cohort 2: Change From Baseline in the Number of Treatable Warts (Baseline and New) at the EOT Visit Day 84)	Cohort 2: Change from baseline in the number of treatable warts (baseline and new) at the EOT Visit Day 84).	Baseline, Day 84 (EOS)
Cohort 2: Change From Baseline in the Percent of Treatable Warts (Baseline and New) at the EOT Visit (Day 84)	Cohort 2: Change from baseline in the percent of treatable warts (baseline and new) at the EOT Visit (Day 84).	Baseline (Visit 1) to End of Treatment Visit (Day 84).
Cohort 2: Proportion of Subjects Exhibiting Complete Clearance of All Treatable Warts, (Baseline and New), at Visit 2, Visit 3, Visit 4 and Over the Duration of the Study	Cohort 2: Proportion of subjects exhibiting complete clearance of all treatable warts, (baseline and new), at Visit 2, Visit 3, Visit 4 and over the duration of the study.	Baseline, Day 21, 42, 63, and 84 (EOS), 105, 126, and 147

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Cohort 1:Percent Reduction of All Treatable Warts (Baseline and New) From Baseline at Visit 2, Visit 3, Visit 4 and Over the Duration of the Study.	Cohort 1: Percent change from baseline in the number of treatable warts (Baseline and new) from Baseline at Visit 2, Visit 3, Visit 4 and over the duration of the study.	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 1: Change From Baseline in the Number of Treatable Warts (Baseline and New) at Visit 2, Visit 3, Visit 4 and the EOS Visit	Cohort 1: Change from baseline in the number of treatable warts (baseline and new) at Visit 2, Visit 3, Visit 4 and the EOS Visit.	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 1: Proportion of Subjects Exhibiting ≥ 50% Clearance of All Treatable Warts (Baseline and New) at the EOS Visit as Compared to Baseline	Cohort 1: Proportion of subjects exhibiting ≥ 50% clearance of all treatable warts (baseline and new) at the EOS visit as compared to baseline.	Compare Treatment Visit 1 (Baseline) to End of Study (Day 84).
Cohort 1-Proportion of Subjects Who Respond to Treatment Defined by a ≥ 50% Reduction in Total Wart Area at EOS Compared to Baseline	Cohort 1-Proportion of subjects who respond to treatment defined by a ≥ 50% reduction in total wart area at EOS compared to baseline.	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 1-Proportion of Subjects Exhibiting Reduction of at Least 1 Treatable Wart From Baseline at Visit 2, Visit 3, Visit 4 and at the EOS Visit (Day 84)	Cohort 1-Proportion of subjects exhibiting reduction of at least 1 treatable wart from baseline at Visit 2, Visit 3, Visit 4 and at the EOS Visit (Day 84).	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 2: Percent Reduction of All Treatable Warts (Baseline and New) From Baseline at Visit 2, Visit 3, Visit 4 and Over Duration of the Study.	Cohort 2: Intent to Treat population Cohort 2-Percent reduction of all treatable warts (baseline and new) from baseline at Visit 2, Visit 3, Visit 4 and over duration of the study.	Baseline to Treatment Visits 2 (Day 21), 3 (Day 42), 4 (Day 63) through the End of Treatment (Day 84).
Cohort 2: Change From Baseline in the Number of Treatable Warts (Baseline and New) at Treatment Visit 2, Treatment Visit 3, Treatment Visit 4 and the EOT Visit (Day 84)	Cohort 2: Change from baseline in the number of treatable warts (baseline and new) at Treatment Visit 2, Treatment Visit 3, Treatment Visit 4 and the EOT Visit (Day 84).	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 2: Proportion of Subjects Exhibiting ≥ 50 % Clearance of All Treatable Warts (Baseline and New) at the EOT Visit (Day 84) as Compared to Baseline	Cohort 2: Proportion of subjects exhibiting ≥ 50 % clearance of all treatable warts (baseline and new) at the EOT Visit (Day 84) as compared to baseline.	Baseline to Day 84 (EOT)
Cohort 2: Proportion of Subjects Who Respond to Treatment Defined by a ≥ 50% Reduction in Total Wart Area at EOT Compared to Baseline	Cohort 2: Proportion of subjects who respond to treatment defined by a ≥ 50% reduction in total wart area at EOT compared to baseline.	Baseline to EOT (Day 84)
Cohort 2: Proportion of Subjects Exhibiting Reduction of at Least 1 Treatable Wart From Baseline at Visit 2, Visit 3, Visit 4 and at the EOT Visit (Day 84)	Cohort 2: Proportion of subjects exhibiting reduction of at least 1 treatable wart from baseline at Visit 2, Visit 3, Visit 4 and at the EOT Visit (Day 84).	Baseline, Day 14, 28, 42, and 84 (EOS)
Cohort 2: Proportion of Subjects Exhibiting Complete Clearance of All Treatable Warts (Baseline and New) at Follow-up Visits on Day 105, Day 126 and Day 147	Cohort 2: Proportion of subjects exhibiting complete clearance of all treatable warts (baseline and new) at follow-up visits on Day 105, Day 126 and Day 147.	Treatment Visit 1 (Baseline) to each follow-up visit Day 105, Day 126 and Day 147.
Cohort 2: Percent Reduction of All Treatable Warts (Baseline and New) From Baseline at Follow-up Visits on Day 105, Day 126 and Day 147	Cohort 2: Percent reduction of all treatable warts (baseline and new) from baseline at follow-up visits on Day 105, Day 126 and Day 147.	Baseline to follow-up visits on Day 105, Day 126 and Day 147
Cohort 2: Change From Baseline in the Number of Treatable Warts (Baseline and New) at Follow-up Visits on Day 105, Day 126 and Day 147	Cohort 2: Change from baseline in the number of treatable warts (baseline and new) at follow-up visits on Day 105, Day 126 and Day 147.	baseline to Day 105, Day 126 and Day 147

Collaborators and Investigators

• Sponsor: Verrica Pharmaceuticals Inc.
• Collaborators: BioClinica, Inc.; Paidion Research, Inc.; Instat Consulting, Inc.; ALMAC Clinical Services
• Investigators: Principal Investigator: Adnan Nasir, MD, Cohort 1: Wake Dermatology; Principal Investigator: Scott Guenthner, MD, Cohort 2: Indiana Clinical Trials Center

Publications and helpful links

General Publications

• Guenthner S, McFalda W, Kwong P, Eads K, McCafferty M, Rieger J, Glover DK, Willson C, Burnett P, Olivadoti M. COVE-1: A Phase 2, Open-Label Study to Evaluate Efficacy and Safety and the Optimal Regimen of VP-102, a Proprietary Drug-Device Product Containing Topical Cantharidin (0.7% w/v) Under Occlusion for the Treatment of Common Warts. Dermatol Ther (Heidelb). 2021 Oct;11(5):1623-1634. doi: 10.1007/s13555-021-00576-y. Epub 2021 Jul 21.

Study record dates

Study Major Dates

• Study Start (Actual): March 27, 2018
• Primary Completion (Actual): May 16, 2019
• Study Completion (Actual): July 15, 2019

Study Registration Dates

• First Submitted: March 21, 2018
• First Submitted That Met QC Criteria: March 27, 2018
• First Posted (Actual): April 4, 2018

Study Record Updates

• Last Update Posted (Actual): November 27, 2024
• Last Update Submitted That Met QC Criteria: November 25, 2024
• Last Verified: August 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Urogenital Diseases; Genital Diseases; Pathologic Processes; Disease Attributes; Sexually Transmitted Diseases, Viral; Sexually Transmitted Diseases; Infections; Communicable Diseases; Virus Diseases; Papillomavirus Infections; DNA Virus Infections; Tumor Virus Infections; Skin Diseases; Warts; Skin Diseases, Infectious; Skin Diseases, Viral; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Pharmaceutical Solutions; Cantharidin
• Other Study ID Numbers: VP-102-105

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: Yes
• product manufactured in and exported from the U.S.: No