Study to Investigate the Safety and Duration of Effect of Different Botulinum Toxin A (NT 201) Dose Groups Following the Treatment of Glabellar Frown Lines
Public ClinicalTrials.gov record NCT03806933. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Prospective, Randomized, Double-blind, Multicenter Study to Investigate the Safety and Duration of Effect of Different NT 201 Dose Groups Following the Treatment of Glabellar Frown Lines
Study identification
- NCT ID
- NCT03806933
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Merz Aesthetics GmbH
- Industry
- Enrollment
- 241 participants
Conditions and interventions
Conditions
Interventions
- NT 201 Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 22, 2019
- Primary completion
- Sep 9, 2020
- Completion
- Oct 7, 2020
- Last update posted
- Nov 14, 2023
2019 – 2020
United States locations
- U.S. sites
- 5
- U.S. states
- 2
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Clinical Testing of Beverly Hills, Merz Investigational Site #0010395 | Encino | California | 91436 | — |
| Medical Associates Inc., Merz Investigational Site #0010435 | Newport Beach | California | 92663 | — |
| Cosmetic Laser Dermatology, Merz Investigational Site #0010321 | San Diego | California | 92121 | — |
| The Maas Clinics, Merz Investigational Site #0010338 | San Francisco | California | 94115 | — |
| Tennessee Clinical Research Center, Merz Investigational Site #0010097 | Nashville | Tennessee | 37215 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03806933, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 14, 2023 · Synced Jul 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03806933 live on ClinicalTrials.gov.