Clinical Studies

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DERMATOLOGIC SURGERY
Volume
45
-
Issue
11
EVOLUS SPONSORED
November 2019

Efficacy and Safety of PrabotulinumtoxinA for the Treatment of Glabellar Lines in Adult Subjects: Results From 2 Identical Phase III Studies

BACKGROUND PrabotulinumtoxinA is a 900-kDa botulinum toxin Type A produced by Clostridium botulinum.

OBJECTIVE To investigate the efficacy and safety of prabotulinumtoxinA for the treatment of glabellar lines.

CONCLUSION In these studies, a single dose of 20-U prabotulinumtoxinA was safe and effective for the treatment of glabellar lines.

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AESTHETIC SURGERY JOURNAL
Volume
40
-
Issue
4
EVOLUS SPONSORED
April 2020

A Multicenter, Randomized, DoubleBlind, Placebo-Controlled, Single-Dose, Phase III, Non-Inferiority Study Comparing PrabotulinumtoxinA and OnabotulinumtoxinA for the Treatment of Moderate to Severe Glabellar Lines in Adult Patients

BACKGROUND PrabotulinumtoxinA is a 900-kDa botulinum toxin type A produced by Clostridium botulinum.

OBJECTIVE The authors sought to investigate the efficacy and safety of prabotulinumtoxinA compared to onabotulinumtoxinA and placebo for the treatment of glabellar lines.

CONCLUSION A single treatment of 20 U prabotulinumtoxinA was safe and effective and noninferior to 20 U onabotulinumtoxinA for the treatment of moderate to severe glabellar lines.

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DERMATOLOGIC SURGERY
Volume
48
-
Issue
6
EVOLUS SPONSORED
June 2022

PrabotulinumtoxinA for Treatment of Millennials With Moderate to Severe Glabellar Lines: Post Hoc Analyses of the Phase III Clinical Study Data

BACKGROUND The use of esthetic products by millennials is increasing, yet published clinical trial data in this population are limited.

OBJECTIVE To compare the efficacy and safety of prabotulinumtoxinA for the treatment of moderate to severe glabellar lines in millennial and nonmillennial patients.

CONCLUSION A single dose of 20U prabotulinumtoxinA administered for the treatment of glabellar lines was similarly well-tolerated by both millennials and nonmillennials; overall, it was more efficacious in millennials.

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DERMATOLOGIC SURGERY
Volume
47
-
Issue
4
EVOLUS SPONSORED
April 2021

PrabotulinumtoxinA for the Treatment of Moderate-to-Severe Glabellar Lines in Adult Patients With Skin of Color: Post Hoc Analyses of the US Phase III Clinical Study Data

BACKGROUND Limited US clinical data are available on the use of aesthetic products in patients with skin of color (SOC).

OBJECTIVE To compare the efficacy and safety of prabotulinumtoxinA for the treatment of glabellar lines in patients with and without SOC.

CONCLUSION A single dose of 20U prabotulinumtoxinA was well tolerated and similar in effectiveness in patients with and without SOC for the treatment of glabellar lines.

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AESTHETIC SURGERY JOURNAL
Volume
42
-
Issue
12
EVOLUS SPONSORED
December 2022

PrabotulinumtoxinA vs OnabotulinumtoxinA for the Treatment of Adult Males With Moderate to Severe Glabellar Lines: Post-hoc Analyses of the Phase III Clinical Study Data

BACKGROUND Despite a growing interest among men in cosmetic procedures such as botulinum toxin, comparator clinical trial data in this population are limited.

OBJECTIVE The authors sought to compare the efficacy and safety of prabotulinumtoxinA and onabotulinumtoxinA for the treatment of males with moderate to severe glabellar lines.

CONCLUSION The percentages of patients who met the definition of a responder were higher at almost all time points examined for prabotulinumtoxinA-treated males. Despite the high level of consistency across all measures, differences between the 2 treatment groups did not reach statistical significance. Further study is warranted to establish if these post-hoc analyses observations are reproducible in a larger male patient population.

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AESTHETIC SURGERY JOURNAL
Volume
41
-
Issue
12
EVOLUS SPONSORED
December 2021

The First of Two One-Year, Multicenter, Open-Label, Repeat-Dose, Phase II Safety Studies of PrabotulinumtoxinA for the Treatment of Moderate to Severe Glabellar Lines in Adult Patients

BACKGROUND PrabotulinumtoxinA is a 900-kDa botulinum toxin type A produced by Clostridium botulinum.

OBJECTIVE The authors sought to investigate the safety of prabotulinumtoxinA for treatment of glabellar lines.

CONCLUSION The safety of RTs of 20 U of prabotulinumtoxinA for moderate to severe glabellar lines was first established in this early phase II study based on a broad range of outcomes.

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AESTHETIC SURGERY JOURNAL
Volume
41
-
Issue
12
EVOLUS SPONSORED
December 2022

The Second of Two One-Year, Multicenter, Open-Label, Repeat-Dose, Phase II Safety Studies of PrabotulinumtoxinA for the Treatment of Moderate to Severe Glabellar Lines in Adult Patients

BACKGROUND PrabotulinumtoxinA is a 900-kDa botulinum toxin type A produced by Clostridium botulinum.

OBJECTIVE The authors sought to investigate the safety of prabotulinumtoxinA for treatment of glabellar lines.

CONCLUSION The safety of RTs of 20 U of prabotulinumtoxinA for moderate to severe glabellar lines was confirmed in this second phase II study based on a broad range of outcomes.

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DERMATOLOGIC SURGERY
Volume
50
-
Issue
9S
EVOLUS SPONSORED
September 2024

Botulinum Toxin Accessory Proteins: Are They Just an Accessory?

BACKGROUND Botulinum neurotoxins produced by Clostridium botulinum consist of a complex of a core neurotoxin protein and one or more nontoxin accessory proteins. The accessory proteins are generally thought to protect the neurotoxin from the gastric environment in botulism poisoning, dissociating away upon absorption. Other than their questionable immunogenicity, they are rarely mentioned in botulinum toxin therapy.

OBJECTIVE To review evidence that accessory proteins potentially play a role in neurotoxin activity.

CONCLUSION Accessory proteins may play a role in the efficacy of botulinum toxin and could remain complexed to the neurotoxin for longer than previously reported.

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JAMA DERMATOLOGY
Volume
50
-
Issue
9S
EVOLUS FUNDED*
September 2024

Comparison of Botulinum Toxin A Formulations for Glabellar Strain Treatment in Women - A Double-Blind Randomized Clinical Trial

IMPORTANCE Multiple botulinum toxin A formulations were approved by the US Food and Drug Administration for treating the glabellar rhytids. A comparative quantitative evaluation of their effects on the glabella has not been conducted.

OBJECTIVE To provide an objective quantitative assessment of the effect of 4 botulinum toxin A formulations on glabellar strain across using dynamic 3-dimensional photogrammetry.

CONCLUSIONS AND RELEVANCE This randomized clinical trial found that ABoNT/A and PBoNT/A displayed the most rapid onset of effect. The peak effect is similar across all toxins. When measuring strain at approximately 6 months, some toxins remain significant relative to their own baseline or compared with other specific toxins.

*Funding was requested by all manufacturers. Evolus provided funding via an investigator-initiated trial grant.

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AESTHETIC SURGERY JOURNAL
Volume
45
-
Issue
5
Symatese sponsored. Manuscript prepared by Evolus
May 2025

Long-term Safety and Effectiveness of Cold-Crosslinked Hyaluronic Acid Fillers: Multicenter, Randomized, Controlled, Double-Blind Study

BACKGROUND Evolysse Form (EVLF) and Evolysse Smooth (EVLS) (Symatese, Chaponost, France) are new hyaluronic acid fillers created using an innovative cold-crosslinking process.

OBJECTIVE The authors of this study aim to collect safety and effectiveness data on new cold-crosslinked fillers to support the US approval for the correction of moderate-to-severe dynamic facial wrinkles and folds.

CONCLUSION The new cold-crosslinked fillers were shown to be safe and effective for correction of NLFs, with results lasting for 1 year.

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