A Study to Evaluate the Pharmacokinetics of Benzoic Acid and Hippuric Acid After Topical Administration of GSK2585823 in Japanese Subjects With Acne Vulgaris

This is a Phase 1, single-center, open-label study to evaluate the pharmacokinetics of the BPO metabolites benzoic acid and hippuric acid with 7-day repeat application of GSK2585823 in subjects with acne vulgaris

Study Overview

• Status: Completed
• Conditions: Acne Vulgaris
• Intervention / Treatment: Drug: GSK2585823

• Study Type: Interventional
• Enrollment (Actual): 12
• Phase: Phase 1

Contacts and Locations

Study Locations

• Japan
  • Tokyo, Japan, 171-0014
    • GSK Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 45 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Japanese male or female subjects between 20 and 45 years of age inclusive at the time of signing the informed consent. Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.
• Diagnosis of acne vulgaris by a dermatologist. Other than acne vulgaris subject must be in good general condition as determined by a investigator, based on a medical evaluation including medical history, physical examination, laboratory tests and cardiac monitoring. Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.
• Subjects must have, on the face at screening (physical examination of dermatologist): A minimum of 17 but not more than 60 inflammatory acne lesions (papules / pustules), including nasal lesions; and a minimum of 20 but not more than 150 non-inflammatory acne lesions (open / closed comedones), including nasal lesions. It is set to evaluate acne patients in the same degree of severity of Japanese Phase 3 study.
• A female subject is eligible to participate if she is of: Child-bearing potential and agrees to use one of the contraception methods listed in the protocol for an appropriate period of time (as determined by the product label or investigator) prior to the start of dosing to sufficiently minimize the risk of pregnancy at that point. Female subjects must agree to use contraception until the follow-up examination. Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.
• Body weight greater than and equal to 50 kg and body mass index (BMI) within the range greater than and equal to18.5 to less than 29.0 kg/m2 at screening Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.
• Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form. Rationale: It is included from an ethical viewpoint according to GCP.
• Single QTcB less than 450 msec; or QTc less than 480 msec in subjects with Bundle Branch Block. Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.
• AST, ALT, alkaline phosphatase and total bilirubin les than and equal to ULN at screening. Rationale: It is considered as adult and the qualifying maximum age expected of subjects with acne vulgaris with good health.

Exclusion criteria:

• Have a history or presence of regional enteritis, inflammatory bowel disease (e.g., ulcerative colitis, pseudomembranous colitis, chronic diarrhea, antibiotic-associated colitis or bloody diarrhea) or similar symptoms. Rationale: It is considered necessary to secure subject's safety.
• Pregnant females as determined by positive urine hCG test at screening or lactating females. Rationale: It is considered necessary to secure subject's safety.
• Used any of the following agents on the face within the previous 2 weeks: Topical antibiotics (or systemic antibiotics); Topical anti-acne medications (e.g., BPO, azelaic acid, resorcinol, salicylates); Abradants, facials, or peels containing glycolic or other acids; Masks, washes or soaps containing BPO, sulfacetamide sodium, or salicylic acid; Non-mild facial cleansers (e.g., facial scrub, cleansers containing agents with anti-inflammatory action); Moisturizers that contain retinol, salicylic acid, or α- or β-hydroxy acids; Astringents and toner (Subjects are allowed to enroll in this study, if the subject has been on treatment for more than 2 consecutive weeks prior to start of investigational product use); Topical corticosteroids (Use of inhaled, intra-articular, or intra-lesional steroids other than for facial acne is acceptable); Facial procedure (such as chemical or laser peel, microdermabration, blue light treatment, etc.); Topical retinoids on the face Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Used systemic retinoids within the previous 6 months. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Received treatment with estrogens, androgens, or anti-androgenic agents within the previous 12 weeks (Subjects who have been treated with the above agents for more than 12 consecutive weeks prior to start of investigational product are allowed to enrol as long as they do not expect to change dose, drug, or discontinue use during the study). Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Used any medication that in the opinion of the investigator may affect this clinical study or evaluation of the study. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Have a known hypersensitivity or have had previous allergic reaction to any of the components of the investigational product. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Used any investigational therapy within the previous 4 months, or plan to participate in another clinical study at the same time. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• A positive test for syphilis, HBs antigen, HCV antibody, HIV antibody, HTLV-1 antibody at screening. Rationale: To secure the site staffs' safety.
• A positive drug screen at screening. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
• Participated in Japanese clinical studies planned by GlaxoSmithKline K.K. in the development of investigational products for acne vulgaris. Rationale: To be incompatible with stopping criteria.
• Are currently abusing drugs or alcohol. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study and to avoid the double-count of subjects.
• Have a significant medical history of being immunocompromised. Rationale: It is considered necessary to secure subject's safety and to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• People as follows and the family members; Employees of GlaxoSmithKline, contract research organization (CRO) or site management organization (SMO); Investigators (or subinvestigators). Rationale: : It is considered necessary to secure subject's safety.
• The subject has donated a unit of blood ">400 mL" within the previous 4 months or ">200 mL" within the previous 1 month. Rationale: It is considered necessary to secure subject's safety. It is included from an ethical viewpoint.
• Painters or subjects working at the coating industry including automobile mechanic. Rationale: : It is considered necessary to secure subject's safety.
• Unwillingness or inability to follow the procedures outlined in the protocol. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study and to avoid the subject potentially has high level of blood concentration of benzoic acid.
• Subject is mentally or legally incapacitated. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.
• Have other conditions that would put the subject at unacceptable risk for participation in the study. Rationale: It is considered necessary to appropriately assess the safety and pharmacokinetics of GSK2585823 in the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: GSK2585823; External Preparation	Drug: GSK2585823; CLDM1%/BPO3%

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Comparison of plasma benzoic acid and hippuric acid pharmacokinetics between pre-application and post-application (7-days repeat) of GSK2585823	Blood PK sampling time frame: 0, 0.5, 1, 1.5, 2, 3, 4, 6, 9,12hours post-dose (Day 1 and Day 8). Parameters: Maximum observed concentration(Cmax),Time of occurrence of Cmax (tmax), Area under the concentration-time curve from time zero (pre-dose) extrapolated to last time (AUC0-last), Area under the concentration-time curve from time zero (pre-dose) to 12 hours of quantifiable concentration within a subject across all treatments (AUC0-12) and Terminal phase half-life (t1/2,) for both benzoic acid and hippuric acid, after multiple application of GSK2585823, if calculable	Participants will be followed up to 7 days after the last application, an expected average of 15 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Comparison of urine benzoic acid and hippuric acid	Urine PK sampling time frame:0-4, 4-8, 8-12 hours post-dose (Day 1 and Day 8). Parameters: Renal clearance (CLr), amount of elimination (Ae) and fraction of elimination (fe), if calculable.	Participants will be followed up to 7 days after the last application, an expected average of 15 days
change from baseline in vital signs, ECGs, clinical laboratory tests	Vital signs, ECGs, clinical laboratory tests	Day -1 - Day 15
Collection of adverse events	Number of adverse events	Participants will be followed up to 7 days after the last application, an expected average of 15 days

Collaborators and Investigators

• Sponsor: GlaxoSmithKline

Publications and helpful links

Helpful Links

• Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.

Study record dates

Study Major Dates

• Study Start (Actual): February 28, 2012
• Primary Completion (Actual): June 1, 2012
• Study Completion (Actual): June 1, 2012

Study Registration Dates

• First Submitted: January 26, 2012
• First Submitted That Met QC Criteria: February 2, 2012
• First Posted (Estimate): February 6, 2012

Study Record Updates

• Last Update Posted (Actual): July 26, 2017
• Last Update Submitted That Met QC Criteria: July 24, 2017
• Last Verified: July 1, 2017

More Information

Terms related to this study

• Keywords: GSK2585823, benzoic acid, hippuric acid, acne vulgaris, pharmacokinetics
• Additional Relevant MeSH Terms: Skin Diseases; Acneiform Eruptions; Sebaceous Gland Diseases; Acne Vulgaris
• Other Study ID Numbers: 115959

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Study Data/Documents

1. Informed Consent Form
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
2. Dataset Specification
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
3. Annotated Case Report Form
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
4. Clinical Study Report
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
5. Statistical Analysis Plan
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
6. Individual Participant Data Set
   Information identifier: 115959
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register