- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07646886
Botulinum Toxin Type A Injection Sites for Oral Commissure Ptosis
Injection Site-Based Multicenter Randomized Controlled Trial: Efficacy and Safety of Focal Botulinum Toxin Type A Injection for Oral Commissure Ptosis
Przegląd badań
Status
Szczegółowy opis
Oral commissure ptosis is a common aesthetic concern that presents as abnormal downward displacement of the mouth corners at rest, leading to a sad, angry or aged appearance. Botulinum toxin type A (BTX-A) injection is the first-line treatment, but there is no consensus on the optimal injection site in the depressor anguli oris (DAO) muscle.
This multicenter randomized controlled trial will enroll 266 subjects with oral commissure ptosis from 5 top Chinese stomatological hospitals. Subjects will be randomly assigned 1:1 to receive either upper DAO or lower DAO BTX-A injection. The primary endpoint is the improvement of oral commissure ptosis angle at 1 month post-treatment. Secondary endpoints include objective efficacy measures, subjective aesthetic evaluations, and safety profiles during a 6-month follow-up.
This study aims to determine the optimal injection site for Chinese population, establish standardized operation specifications, and provide level I evidence for clinical practice.
Typ studiów
Zapisy (Szacowany)
Faza
- Faza 4
Kontakty i lokalizacje
Kontakt w sprawie studiów
- Nazwa: Xi Gong, D.D.S
- Numer telefonu: +86 15201304426
- E-mail: 15201304426@163.com
Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
Akceptuje zdrowych ochotników
Opis
Inclusion Criteria:
- Aged 18 to 60 years, any gender
- Meet the diagnostic criteria for oral commissure ptosis: bilateral oral commissure ptosis angle (angle between the oral commissure point and the horizontal line of the ipsilateral vermilion border) > 1° at rest
- Have clear aesthetic demand for oral commissure ptosis improvement and can complete full-cycle follow-up
- No redness, swelling, ulcer, scar, deformity or active infection in the perioral and mental regions
- Have not participated in other interventional clinical trials within 3 months before enrollment
Exclusion Criteria:
- Hypersensitivity to botulinum toxin type A, lidocaine or excipients of injection preparations; or contraindications to botulinum toxin injection (myasthenia gravis, Lambert-Eaton syndrome, motor neuron disease, severe liver and kidney dysfunction, coagulation disorders, uncontrolled autoimmune diseases, malignant tumors)
- History of mid-lower facial botulinum toxin type A injection, soft tissue filling, laser/radiofrequency rejuvenation, perioral surgery or orthognathic treatment within 6 months before enrollment
- Planned perioral treatment within 6 months after enrollment that may affect efficacy evaluation
- Pregnant or lactating women, or those planning to become pregnant within 6 months
- Acquired oral commissure ptosis caused by facial nerve palsy/sequelae, perioral scar traction, severe jaw deformity or severe alveolar bone resorption
- Severe facial asymmetry (difference in bilateral oral commissure ptosis angle > 2°)
- History of botulinum toxin allergy or severe adverse reactions after previous botulinum toxin injection
- Currently using aminoglycoside antibiotics, quinine, calcium channel blockers, anticoagulants or other drugs that may affect botulinum toxin efficacy or increase bleeding risk and cannot discontinue
- History of mental illness, drug/alcohol abuse, or poor compliance unable to complete follow-up
- Other conditions deemed unsuitable for enrollment by the investigator
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Randomizowane
- Model interwencyjny: Przydział równoległy
- Maskowanie: Pojedynczy
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
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Eksperymentalny: Upper Depressor Anguli Oris Injection
Single subcutaneous injection of OnabotulinumtoxinA (Botox®, Allergan, USA) into the upper half of the depressor anguli oris (DAO) muscle.
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Single subcutaneous injection of onabotulinumtoxinA into the upper half of the depressor anguli oris muscle, total dose 6U bilaterally.
Inne nazwy:
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Aktywny komparator: Lower Depressor Anguli Oris Injection
Single subcutaneous injection of OnabotulinumtoxinA (Botox®, Allergan, USA) into the lower half of the depressor anguli oris (DAO) muscle.
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Single subcutaneous injection of onabotulinumtoxinA into the lower half of the depressor anguli oris muscle, total dose 6U bilaterally.
Inne nazwy:
|
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Improvement of Bilateral Oral Commissure Ptosis Angle from Baseline at 1 Month Post-Treatment
Ramy czasowe: 30±3 days after treatment
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The primary endpoint is the change in bilateral oral commissure ptosis angle (∠oba) from baseline.
The angle is measured on standardized frontal facial photographs at rest by 3 independent assessors who are completely blinded to group assignment.
The average value of 3 measurements is used as the final result.
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30±3 days after treatment
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Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Improvement of Oral Commissure Ptosis Angle at Maximum Smile and Maximum Depression Position
Ramy czasowe: 1, 3, 6 months after treatment
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Change in oral commissure ptosis angle from baseline measured at maximum smile without teeth exposure and maximum oral commissure depression position on standardized facial photographs.
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1, 3, 6 months after treatment
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Vertical Elevation Amplitude of the Oral Commissure
Ramy czasowe: 1, 3, 6 months after treatment
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Change in the vertical distance from the oral commissure point to the ipsilateral pupil from baseline, measured on standardized frontal facial photographs.
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1, 3, 6 months after treatment
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Merz Facial Aesthetic Scale Score
Ramy czasowe: 1, 3, 6 months after treatment
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Physician-assessed aesthetic improvement using the full Merz Facial Aesthetic Scale.
Scale range: 0 (No aging) to 4 (Severe aging).
Lower scores indicate better aesthetic outcome.
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1, 3, 6 months after treatment
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Global Aesthetic Improvement Scale (GAIS)
Ramy czasowe: 1, 3, 6 months after treatment
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Patient-reported global aesthetic improvement using the full Global Aesthetic Improvement Scale (GAIS).
Scale range: 1 (Much worse) to 5 (Much improved).
Higher scores indicate better aesthetic outcome.
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1, 3, 6 months after treatment
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Patient Satisfaction Score (FACE-Q)
Ramy czasowe: 1, 3, 6 months after treatment
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Patient-reported facial appearance satisfaction using the full FACE-Q Facial Appearance Module.
Scale range: 0 (Worst possible appearance) to 100 (Best possible appearance).
Higher scores indicate better outcome.
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1, 3, 6 months after treatment
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Incidence of Adverse Events (AEs)
Ramy czasowe: From enrollment to 6 months after treatment
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Incidence, time of onset, clinical manifestation, severity, treatment measures and outcome of all adverse events during the study period.
Severity is graded according to CTCAE 5.0.
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From enrollment to 6 months after treatment
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Incidence of Toxin Diffusion-Related Adverse Events
Ramy czasowe: From enrollment to 6 months after treatment
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Incidence of adverse events related to unintended botulinum toxin diffusion, including oral commissure asymmetry, lower lip movement disorder, salivation, dysarthria and abnormal smile.
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From enrollment to 6 months after treatment
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Incidence of Serious Adverse Events (SAEs)
Ramy czasowe: From enrollment to 6 months after treatment
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Incidence of serious adverse events that result in death, life-threatening condition, hospitalization, persistent or significant disability, or congenital anomaly/birth defect.
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From enrollment to 6 months after treatment
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Patient Satisfaction Score (Visual Analog Scale, VAS)
Ramy czasowe: 1, 3, 6 months after treatment
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Patient satisfaction measured by the 10-point Visual Analog Scale (VAS).
Scale range: 0 (Completely dissatisfied) to 10 (Completely satisfied).
Higher scores indicate higher satisfaction.
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1, 3, 6 months after treatment
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Współpracownicy i badacze
Sponsor
Śledczy
- Główny śledczy: Xi Gong, D.D.S, Peking University School and Hospital of Stomatology
- Główny śledczy: Minjie Chen, D.D.S, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
- Główny śledczy: Jian Li, D.D.S, Wuhan University School of Stomatology
- Główny śledczy: Yunpeng Li, D.D.S, School of Stomatology, Air Force Medical University
- Główny śledczy: Sien Zhang, D.D.S, Guanghua School of Stomatology, Sun Yat-sen University
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- PekingUDAO
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
produkt wyprodukowany i wyeksportowany z USA
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