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A Study Assessing KB304 for the Treatment of Wrinkles in Women

A Phase 1/2 Study of KB304, a Replication-Defective, Non-Integrating Vector Expressing Human Type III Collagen (COL3) and Tropoelastin for the Treatment of Wrinkles

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06724900
Acronym
Pearl-2
Enrollment
19
Registered
2024-12-09
Start date
2024-11-20
Completion date
2025-08-31
Last updated
2025-05-13

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

Conditions

Décolleté Wrinkles, Pigmentation, Wrinkles in Decolletage

Keywords

Krystal Biotech, wrinkles in decolletage, pigmentation in decolletage, décolleté wrinkles

Brief summary

The aim of this study is to investigate the safety and efficacy of KB304, an investigational gene therapy to correct moderate to severe wrinkles in the décolleté region (V-shaped chest area). KB304 is an investigational gene therapy that delivers functional, full-length human collagen (COL3) and elastin (tropoelastin) to the skin through small injections using the Sponsor's genetically engineered Herpes Simplex Virus (HSV-1) vector. The study is a randomized double-blind study and participants will receive either KB304 (active group) or placebo (inactive group).

Interventions

BIOLOGICALKB304

Genetically modified herpes simplex type 1 virus

Sponsors

Krystal Biotech, Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* Female in good general health, as determined by the Investigator, aged ≥18 and ≤75 at the time of consent. * Presence of moderate to severe dynamic wrinkles in the décolleté Target Area, as determined by the Investigator on the JDWS. * A Fitzpatrick skin phototype score of I-IV. * A negative urine pregnancy test at Screening and Day 1 (Visit 2) for subjects of child-bearing potential. * Signed and dated informed consent and willingness to attend all study visits and complete all procedures required by the protocol.

Exclusion criteria

* Any transient or chronic skin condition, disorder, or infection within 20 cm of the Target Area at Day 1 (Visit 2) that, in the opinion of the Investigator, may interfere with the interpretation of study results. * Scars, tattoos or tanned skin (defined as skin that is tanned from sun exposure, tanning beds, or an applied skin color such as a spray tan) within the Target Area at Day 1 (Visit 2). * History of laser treatment, microneedling, chemical peels within 3 months of Day 1 (Visit 2), or botulinum toxin within 6 months of Day 1 (Visit 2) to the Target Area. * History of surgical procedures to Target Area, including removal of benign or malignant skin cancers that, in the opinion of the Investigator, may interfere with the interpretation of study results. * Administration of a cosmetic and/or investigational agent, in the Target Area within 6 months of Day 1 (Visit 2), that, in the opinion of the Investigator, may interfere with the interpretation of study results. * Any condition (including a history or current evidence of substance abuse or dependence, ongoing systemic infection, infection local to the Target Area, immunosuppression, or recent history of or active malignancy in the Target Area) that, in the Investigator's opinion, would impact the subject's ability to complete all study-related procedures and/or poses an additional risk to the assessment of safety of the Investigational Product. * Subject who is pregnant or nursing. * Subject who is unwilling to comply with contraception requirements per-protocol. * Subject is known to be noncompliant or is unlikely to comply with the requirements of the study protocol, in the opinion of the Investigator

Design outcomes

Primary

MeasureTime frameDescription
Safety and tolerability of KB304 versus placebo administered by intradermal injectionUp to 4 monthsTreatment related adverse events as assessed by CTCAE

Secondary

MeasureTime frameDescription
To evaluate the effect of KB304 versus placebo on dynamic wrinkles of the décolleté area.Up to 4 monthsChange from baseline as compared to placebo in the Investigator's live assessment (using a 6-Point Global Aesthetic Improvement Scale (GAIS)) and the participants' self-assessment where +2 is much improved and -2 is not applicable.

Countries

United States

Outcome results

None listed

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