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A Trial of a Botanical Drug Containing East Indian Sandalwood Oil (EISO) for Treatment of Common Warts

A Randomized, Double-blind, Multi-center, Placebo-controlled, Dose-ranging, Efficacy and Safety Trial of a New Botanical Drug Product Containing East Indian Sandalwood Oil (EISO) for Treatment of Common Warts (Verruca Vulgaris)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01286441
Enrollment
183
Registered
2011-01-31
Start date
2012-11-30
Completion date
2014-06-30
Last updated
2019-05-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Common Warts

Keywords

Verruca vulgaris

Brief summary

Nonclinical studies have shown sandalwood oil to have anti-inflammatory, anti-fungal, antiviral, and anti-bacterial activities. Previous clinical studies have shown East Indian Sandalwood oil to be promising as a treatment for common warts in adults and children. The primary objective of this study is to evaluate the efficacy and safety of 10%, 20%, and 30% East Indian Sandalwood Oil (EISO) ointment compared with the ointment placebo administered twice daily (bid) for 12 weeks for the treatment of common warts (Verruca vulgaris).

Interventions

DRUG10% EISO

During the Treatment Period, subjects will apply study medication (10% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.

DRUGPlacebo

During the Treatment Period, subjects will apply placebo to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.

DRUG20% EISO

During the Treatment Period, subjects will apply study medication (20% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.

DRUG30% EISO

During the Treatment Period, subjects will apply study medication (30% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.

Sponsors

ViroXis Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Are male or female, and 18 years of age or older at enrollment; 2. Have 2 to 10 common warts (Verruca vulgaris) to be treated within a single 5 cm-by-5 cm contiguous area (the treatment area); 3. The treatment area can be located anywhere on the body except for the following prohibited areas: the eye area (including eyelids), lips, mouth cavity, nasal cavity, inner ear, palms of the hands, soles of the feet, or the anogenital area; 4. The total surface area of the warts to be treated is ≤600 mm2; 5. If female of childbearing potential, have a negative urine pregnancy test at Screening and Randomization/Day 1, and are willing to use effective contraception during the study (ie, oral, implanted, or injectable contraceptives, intrauterine device (IUD), diaphragm, condom, tubal ligation, abstinence, or are in a monogamous relationship with a partner who has had a vasectomy); 6. Are judged to be in good health based upon the results of a physical examination, medical history, and safety laboratory tests; 7. Are willing and able to provide written informed consent; 8. Agree to use no wart-removing product (prescription or over-the-counter \[OTC\]) other than the study product during the course of the study; 9. Are willing and able to comply with the requirements of the study; 10. Are 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. 11. Are willing to refrain from using cosmetics or other topical products in the treatment area for the duration of the study.

Exclusion criteria

1. Have less than 2 or more than 10 common warts within the designated treatment area; 2. Have warts outside of the treatment area that would interfere with study procedures or analyses; 3. Have participated in an investigational trial within 30 days prior to enrollment; 4. Have participated in a prior trial investigating EISO use for the treatment of common warts; 5. Have used salicylic acid or any over-the-counter wart-removing product in the treatment area within 30 days prior to enrollment; 6. Have used or will use oral zinc and/or cimetidine within 30 days prior to enrollment or during the course of the study; 7. Have received cryotherapy in the treatment area within 60 days prior to enrollment; 8. Have required or will require systemic intake of 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; 9. Have any current and/or recurrent pathologically relevant skin infections in the treatment area other than common warts (with the exception of Herpes simplex virus labialis); 10. Have any current uncontrolled infection; 11. Are pregnant, plan to become pregnant, or are breastfeeding; 12. Have a known sensitivity to any of the constituents of the investigational or control products including sandalwood oil, fragrances, or any members of the Compositae family of vascular plants (eg, sunflowers, daisies, dahlias, etc.); 13. 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 (including human immunodeficiency virus, systemic lupus erythematosis, viral hepatitis, etc.); 14. Have any active malignancy or are undergoing treatment for any malignancy other than nonmelanoma skin cancer; 15. Have, in the opinion of the investigator, clinically significant clinical laboratory results at the time of screening that may interfere with the study results or place the subject at undue risk.

Design outcomes

Primary

MeasureTime frameDescription
Complete Resolution of All Treated Warts by or at Week 1212 weeksDuring the Treatment Period, subjects will apply study medication to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks. Clinical evaluations, including wart counts, wart measurements and recording of adverse events and concomitant medications will be performed. Photographs of the treatment area will be taken at all study visits

Secondary

MeasureTime frameDescription
Number of Subjects Achieving Partial Resolution of Treated Warts12 weeksPartial Resolution is defined as \>/= 75% Reduction of treated wart

Countries

United States

Participant flow

Participants by arm

ArmCount
Placebo
Placebo for East Indian Sandalwood Oil ointment administered topically twice daily Placebo: During the Treatment Period, subjects will apply placebo to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.
45
10% EISO
East Indian Sandalwood Oil ointment, 10% (w/w), applied topically twice daily 10% EISO: During the Treatment Period, subjects will apply study medication (10% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.
44
20% EISO
East Indian Sandalwood Oil ointment, 20% (w/w), applied topically twice daily 20% EISO: During the Treatment Period, subjects will apply study medication (20% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.
46
30% EISO
East Indian Sandalwood Oil ointment, 30% (w/w), applied topically twice daily 30% EISO: During the Treatment Period, subjects will apply study medication (30% EISO) to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks.
48
Total183

Baseline characteristics

CharacteristicPlacebo20% EISO30% EISOTotal10% EISO
Age, Continuous46.6 years
STANDARD_DEVIATION 15.4
44.3 years
STANDARD_DEVIATION 17.9
39.5 years
STANDARD_DEVIATION 15.2
43.3 years
STANDARD_DEVIATION 16.6
43.2 years
STANDARD_DEVIATION 17.5
Ethnicity (NIH/OMB)
Hispanic or Latino
13 Participants14 Participants13 Participants55 Participants15 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
32 Participants32 Participants35 Participants128 Participants29 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Height165.2 cm
STANDARD_DEVIATION 18.7
167.5 cm
STANDARD_DEVIATION 11.1
168.1 cm
STANDARD_DEVIATION 10.5
167.2 cm
STANDARD_DEVIATION 13
167.8 cm
STANDARD_DEVIATION 9.9
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants1 Participants3 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants3 Participants7 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants3 Participants5 Participants2 Participants
Race (NIH/OMB)
White
44 Participants43 Participants41 Participants167 Participants39 Participants
Region of Enrollment
United States
45 participants46 participants48 participants183 participants44 participants
Sex: Female, Male
Female
26 Participants27 Participants28 Participants105 Participants24 Participants
Sex: Female, Male
Male
19 Participants19 Participants20 Participants78 Participants20 Participants
Weight81.8 kg
STANDARD_DEVIATION 21.3
75.9 kg
STANDARD_DEVIATION 17.4
77.8 kg
STANDARD_DEVIATION 20.5
78.6 kg
STANDARD_DEVIATION 19.4
79.0 kg
STANDARD_DEVIATION 18.1

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
3 / 450 / 440 / 463 / 48
serious
Total, serious adverse events
0 / 451 / 440 / 460 / 48

Outcome results

Primary

Complete Resolution of All Treated Warts by or at Week 12

During the Treatment Period, subjects will apply study medication to all warts in the treatment area for 12 weeks and will then be followed for an additional 12 weeks. Subjects achieving complete resolution will continue to apply the study medication for the entire 12-week treatment period. During the Follow-up Period, subjects will be followed by telephone every 4 weeks for 12 weeks. Clinical evaluations, including wart counts, wart measurements and recording of adverse events and concomitant medications will be performed. Photographs of the treatment area will be taken at all study visits

Time frame: 12 weeks

Population: FAS population was used for this outcome measure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PlaceboComplete Resolution of All Treated Warts by or at Week 122 Participants
10% EISOComplete Resolution of All Treated Warts by or at Week 125 Participants
20% EISOComplete Resolution of All Treated Warts by or at Week 122 Participants
30% EISOComplete Resolution of All Treated Warts by or at Week 123 Participants
Secondary

Number of Subjects Achieving Partial Resolution of Treated Warts

Partial Resolution is defined as \>/= 75% Reduction of treated wart

Time frame: 12 weeks

Population: FAS population used for this outcome measure.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PlaceboNumber of Subjects Achieving Partial Resolution of Treated Warts2 Participants
10% EISONumber of Subjects Achieving Partial Resolution of Treated Warts4 Participants
20% EISONumber of Subjects Achieving Partial Resolution of Treated Warts5 Participants
30% EISONumber of Subjects Achieving Partial Resolution of Treated Warts8 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026