Jeune Aesthetics Announces Phase 1 Positive Interim Safety and Efficacy Results for KB301 in the Treatment of Lateral Canthal Lines and Dynamic Wrinkles of the Décolleté
Décolleté indication selected for Phase 2 study expected to start next year
Conference call to discuss results scheduled for
“Today’s injectable aesthetics toolbox is limited to toxins and fillers which allow us to manipulate, but not rejuvenate, aging skin,” said
Meaningful and sustained improvements in skin aesthetic attributes, assessed using a Global Aesthetic Improvement Scale (“GAIS”), were reported by the study investigators and subjects alike in both the décolleté and lateral canthal regions. Increased subject satisfaction with wrinkle appearance was also reported using a Subject Satisfaction Questionnaire (“SSQ”).
Dynamic Wrinkles of the Décolleté Topline Efficacy Results
A total of 20 subjects were enrolled. Two subjects dropped out before completing KB301 treatments. The remaining 18 subjects were assessed for aesthetic improvement out to two months following KB301 injections in the décolleté region. Results included:
- Study investigators reported clinically meaningful improvement in wrinkles both one and two months after treatment, as assessed by GAIS:
- At two months: 94% of subjects had at least a one point improvement and 28% had a two point improvement - the maximum potential score on the GAIS scale.
- At one month: 83% of subjects had at least a one point improvement and 28% had a two point improvement.
- Subjects also reported improvements in wrinkles that increased from the first to second follow up month, as assessed by GAIS:
- At two months: 89% of subjects reported at least a one point improvement and 39% reported a two point improvement.
- At one month: 61% of subjects reported at least a one point improvement and 28% reported a two point improvement.
- 94% of subjects reported improved satisfaction with their wrinkles’ appearance two months after treatment, as assessed by SSQ.
- Improvements were also seen across multiple additional skin attributes, as assessed by GAIS, including crepiness, hydration, and radiance, for which investigators reported improvements of 1 point or better in 89%, 94%, and 94% of subjects, respectively, two months after treatment.
Lateral Canthal Line Topline Efficacy Results
A total of 13 subjects were enrolled. One subject dropped out before completing KB301 treatments. The remaining 12 subjects were assessed for aesthetic improvement out to two months following KB301 injections in the lateral canthal region. Results included:
- Study investigators again reported clinically meaningful improvement in wrinkles both one and two months after treatment, as assessed by GAIS:
- At two months: 75% of subjects had at least a one point improvement and 50% had a two point improvement.
- At one month: 92% of subjects had at least a one point improvement and 50% had a two point improvement.
- Subjects also reported improvements in wrinkles, as assessed by GAIS:
- At two months: 50% of subjects reported at least a one point improvement and 25% reported a two point improvement.
- At one month: 58% of subjects reported at least a one point improvement and 17% reported a two point improvement.
- 67% of subjects reported improved satisfaction with their wrinkles’ appearance two months after treatment, as assessed by SSQ.
- Improvements across multiple additional skin attributes were again reported, as assessed by GAIS, with investigators reporting one point or greater improvements in at least 75% of subjects for each of crepiness, hydration, and radiance, two months following treatment.
Across both cohorts, the KB301 safety profile was consistent with prior clinical experience in Cohorts 1 and 2 and other injectable aesthetic products. Adverse events were primarily injection associated, mild-to-moderate, and transient. No drug related serious adverse events were reported.
“We are excited to share today’s data update in which we continue to see profound aesthetic benefits following KB301 administration in both the lateral canthal region and the décolleté, in line with our earlier findings from PEARL-1 Cohort 2,” said September Riharb, Senior Vice President of Jeune. “We are also pleased that, in addition to reporting improvements in fine lines and wrinkles, both study investigators and subjects alike reported high rates of improvement across a variety of key skin attributes, consistent with KB301’s paradigm-changing mechanism of delivering COL3A1 directly to the skin and restoring COL3 levels to more youthful levels. The natural looking results of KB301 rejuvenated skin are exactly what consumers are looking for today. On the basis of the strong results we saw in Cohort 4, we will be progressing KB301 into Phase 2 development for the treatment of dynamic wrinkles of the décolleté, a priority aesthetic site for which no FDA-approved injectables exist, and will be meeting with the FDA in the coming months to enable initiation of the Phase 2 study.”
A subset of Cohort 4 subjects opted in to redose at the two month follow up timepoint, after completing the assessments described above. Additional data collection is ongoing in the redosed subjects. Upon completion, detailed results of PEARL-1 Cohorts 3 and 4 will be presented at future scientific conference(s).
Conference Call, Webcast and Presentation Information
Jeune and Krystal will host a conference call and webcast today,
Investors and the general public can access the live webcast at: https://www.webcaster4.com/Webcast/Page/3018/51166
For those unable to listen to the live webcast, a replay will be available on the Investor’s section of the Krystal website at www.krystalbio.com.
About KB301
KB301 is an investigational aesthetic therapy employing Krystal’s novel replication-defective, non-integrating HSV-1-based vector to deliver two copies of the COL3A1 transgene and increase COL3 levels in skin to address signs of skin aging associated with declining collagen levels and damage of the skin’s extracellular matrix. KB301 is formulated as a solution for direct intradermal injection to aesthetic priority areas.
About the PEARL-1 Study
PEARL-1 is a multi-cohort Phase 1 study designed to evaluate the safety, tolerability, initial efficacy and duration of effect of intradermal KB301 injections in adult subjects. Previously disclosed results from Cohorts 1 and 2 revealed that repeat administration of KB301 to various locations on the body was well-tolerated and, in 2022, Jeune announced positive proof-of-concept, safety, efficacy, and nine-month durability data from PEARL-1 Cohort 2 with respect to improvement of fine lines and wrinkles. Building on the results from Cohort 2, Cohorts 3 and 4 of PEARL-1 are open-label, single-arm cohorts designed to evaluate KB301 in two potential target indications for Phase 2, lateral canthal lines at rest and dynamic wrinkles of the décolleté. Details of the Phase 1 study can be found at www.clinicaltrials.gov under NCT identifier NCT04540900.
About
About
Forward-Looking Statements
Any statements in this press release about future expectations, plans and prospects for Krystal Biotech, Inc., or its wholly-owned subsidiary,
CONTACT
Investors and Media:
spaquette@krystalbio.com
Source: Krystal Biotech, Inc.