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A Study Evaluating the Safety, Tolerability, and Pharmacokinetics of Multiple Ascending Doses of SM04755 Following Topical Administration to Healthy Subjects

A Phase 1, Single-Center, Randomized, Single-Blind, Placebo-Controlled Study Evaluating the Safety, Tolerability, and Pharmacokinetics of Multiple Ascending Doses of SM04755 Following Topical Administration to Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03229291
Enrollment
24
Registered
2017-07-25
Start date
2016-11-03
Completion date
2017-06-11
Last updated
2017-07-25

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

Conditions

Tendinopathy

Keywords

SM04755, topical, Samumed, Wnt inhibitor

Brief summary

This study is a single-center, randomized, single-blind, placebo-controlled, multiple ascending dose study of SM04755 solution applied topically once daily for 14 days to intact skin overlying the inner thigh of healthy subjects at an estimated body surface area (BSA) of 80 cm\^2. Dosing cohorts will consist of 8 subjects who will be randomized 3:1 (SM04755:placebo).

Interventions

SM04755 is a small molecule inhibitor of the Wnt pathway.

DRUGVehicle

Same formulation as topical SM04755 solution, without SM04755 included.

Sponsors

Biosplice Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Body mass index of 18 to 30 kg/m\^2 at study start * Subject must have read and understood the informed consent form, and must have signed it prior to any study-related procedure being performed * Willingness to comply with all scheduled study visits, laboratory tests, contraception requirements and other study procedures * Appropriate skin characteristics at site of application (inner thigh) (for example, consistent pigmentation, no tattoos, no scarring or noted injury, no varicose veins or structural repair) * Willing to avoid extensive sun exposure, phototherapy, or use of a tanning salon for the duration of the study

Exclusion criteria

* Women who are pregnant or lactating * Women of childbearing potential who are sexually active and are not willing to use a highly effective method of birth control during the study period that includes double barrier, intrauterine device (IUD), or hormonal contraceptive combined with single barrier, or abstinence * Males who are sexually active and not willing to use a condom, and have a partner who is capable of becoming pregnant, if neither has had surgery to become sterilized, and/or who are not willing to use double barrier or whose partner is not using a highly effective method of birth control (e.g., IUD or hormonal contraception combined with single barrier). * History of, or current, skin disease (for example, psoriasis, atopic dermatitis, seborrheic dermatitis, and skin cancer) * History of, or current, skin damage at the treatment site (inner thigh) (for example, cuts, abrasion, sunburn, sun-damage, or scarring) * Phototherapy or use of a tanning salon 2 weeks prior to study start until end of the study (Day 28) * History of, or current, allergy to investigational product/placebo ingredients * Known allergy to adhesive tape * Current evidence of malignancy or history of malignancy within the last 5 years prior to study start; prior history of in situ cancer or basal or squamous cell skin cancer, completely excised, is allowed * Treatment with an investigational product within 12 weeks prior to study start; the last date of participation in the trial, not the last date of receipt of investigational product, must be at least 12 weeks prior to study start * Use of any prescription or nonprescription drugs \[except birth control or hormone replacement therapy (HRT)\], topical skin treatments on the application site (inner thigh), vitamins, grapefruit/grapefruit juice, or dietary or herbal supplements within 14 days prior to study start * Blood donation of ≥ 1 pint (473 mL) within 56 days prior to study start or unwilling to refrain from blood donation for the duration of the study * Plasma or platelet donation within 14 days prior to study start or unwilling to refrain from plasma or platelet donation for the duration of the study * Unwilling to refrain from sperm donation for the duration of the study and until 90 days after dose administration * Prior or current latent or active tuberculosis (TB) or nontuberculous mycobacteria infection. * Evidence of active infection or illness involving fever within 7 days prior to study start * Occurrence of serious illness requiring hospitalization within 6 months prior to study start * Regular alcohol consumption exceeding 7 drinks/week for females or 14 drinks/week for men (1 drink = 5 ounces \[150 mL\] of wine or 12 ounces \[360 mL\] of beer or 1.5 ounces \[45 mL\] of hard liquor) within 6 months prior to study start * Use of tobacco- or nicotine-containing products (cigarettes, pipe, cigar, chewing tobacco or nicotine gum, lozenges or patches) within 30 days prior to study start * A history of abuse of prescription or illicit drugs within 6 months prior to study start * Marijuana use within 28 days prior to study start * Previous treatment with SM04755 * Subjects who have a current or pending disability claim, workers' compensation, or litigation(s) that may compromise response to treatment * Subjects who are immediate family members (spouse, parent, child, or sibling; biological or legally adopted) of personnel directly affiliated with the study at the investigative site, or are directly affiliated with the study at the investigative site * Subjects employed by Samumed, LLC, or any of its affiliates or development partners (that is, an employee, temporary contract worker, or designee) responsible for the conduct of the study

Design outcomes

Primary

MeasureTime frameDescription
Change in skin score assessment: burning/stingingBaseline and Day 28Change from baseline in burning/stinging skin score assessment
Incidence of adverse events (AEs)Day 28Incidence and severity of AEs events during the treatment and observation periods of the study
Incidence of clinical laboratory abnormalitiesDay 28Incidence and severity of clinical laboratory measurements that are outside the normal range
Change in vital signs: blood pressureBaseline and Day 28Change from baseline in blood pressure
Change in vital signs: temperatureBaseline and Day 28Change from baseline in temperature
Change in vital signs: respiratory rateBaseline and Day 28Change from baseline in respiratory rate
Change in vital signs: pulse rateBaseline and Day 28Change from baseline in pulse rate
Change in electrocardiogram (ECG) parametersBaseline and Day 28Change from baseline in 12-lead ECG parameters
Plasma pharmacokinetics (PK): CmaxDay 1Maximum plasma concentration (Cmax) estimate for SM04755 following first dose
Plasma pharmacokinetics (PK):tmaxDay 1Time to Cmax estimate for SM04755 following first dose
Plasma pharmacokinetics (PK): AUCDay 1Area under the plasma concentration-time curve (AUC) estimate for SM04755 following first dose
Plasma pharmacokinetics (PK):half-lifeDay 1Plasma terminal phase half-life estimate for SM04755 following first dose
Plasma pharmacokinetics (PK):CmaxDay 14Maximum plasma concentration (Cmax) estimate for SM04755 following last dose
Change in skin score assessment: erythemaBaseline and Day 28Change from baseline in erythema skin score assessment
Change in skin score assessment: scalingBaseline and Day 28Change from baseline in scaling skin score assessment
Change in skin score assessment: pruritus/itchingBaseline and Day 28Change from baseline in pruritus/itching skin score assessment

Secondary

MeasureTime frameDescription
Incidence of AEs relative to exposureDay 28Incidence and severity of AEs relative to measured plasma exposure to SM04755

Countries

United States

Outcome results

None listed

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