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Evaluation of the Effectiveness and Safety of Diluted RADIESSE® in the Treatment of Décolleté Wrinkles

Prospective, Multicenter, Controlled, Evaluator-blind, Randomized Study to Investigate the Effectiveness and Safety of Diluted RADIESSE® for Treatment of Décolleté Wrinkles

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05163353
Enrollment
152
Registered
2021-12-20
Start date
2021-12-10
Completion date
2025-06-11
Last updated
2025-10-17

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

Conditions

Décolleté Wrinkles

Brief summary

Trial to confirm the effectiveness and demonstrate the safety of treatment with diluted Radiesse for correction of Décolleté Wrinkles.

Interventions

DEVICETreatment with diluted Radiesse

Injection of Décolleté Wrinkles with diluted Radiesse

Sponsors

Merz North America, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
30 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Female between ≥ 30 and ≤ 65 years old at the time of the screening. * Subjects seeking improvement of décolleté wrinkles.

Exclusion criteria

* Any previous surgery, including plastic surgery or permanent surgical implant in the treatment area. * Previous treatment with collagen fillers, calcium hydroxylapatite, and/or long-lasting hyaluronic acid (HA) fillers in the décolleté, or with other HA fillers in the décolleté. * Previous treatment with botulinum toxin, ablative or fractional laser, microdermabrasion, microneedling, chemical peels, and/or non-invasive skin tightening in the décolleté.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Responders on Merz Aesthetic Scale (MAS) Décolleté Wrinkles - at Rest at Week 24Week 24The percentage of responders (responder rate) was defined as the percentage of subjects achieving greater than or equal to (\>=) 1-point improvement on MAS décolleté wrinkles-at Rest from baseline to Week 24 as assessed by the blinded evaluator. Responder rate was assessed using MAS-at rest scale, where 0 = no wrinkles, 1 = mild wrinkles, 2 = moderate wrinkles, 3 = severe wrinkles, 4 = very severe wrinkles. Higher score indicated the worse outcome. This analysis was done using multiple imputation method to impute missing values.

Secondary

MeasureTime frameDescription
Percentage of Responders on MAS Décolleté Wrinkles - Dynamic at Week 24Week 24The percentage of responders (responder rate) was defined as the percentage of subjects achieving \>= 1-point improvement on MAS décolleté wrinkles-Dynamic from baseline to Week 24 as assessed by the blinded evaluator. Responder rate was assessed using MAS-Dynamic scale, where 0 = no wrinkles, 1 = mild wrinkles, 2 = moderate wrinkles, 3 = severe wrinkles, 4 = very severe wrinkles. Higher score indicated the worse outcome. This analysis was done using multiple imputation method to impute missing values.
Percentage of Subjects With Any Improvement on Investigator Global Aesthetic Improvement Scale (iGAIS) at Week 24Week 24Improvement is defined as a rating of +1 (Improved), +2 (Much improved) or +3 (Very much improved). Treating investigators used iGAIS, where - 3 = very much worse, - 2 = much worse, - 1 = worse, 0 = no change, + 1 = improved, + 2 = much improved, + 3 = very much improved. Higher score indicated aesthetic improvement.
Percentage of Subjects With Any Improvement on Subject Global Aesthetic Improvement Scale (sGAIS) at Week 24Week 24Improvement is defined as a rating of +1 (Improved), +2 (Much improved) or +3 (Very much improved). Subjects used the sGAIS, where - 3 = very much worse, - 2 = much worse, - 1 = worse, 0 = no change, + 1 = improved, + 2 = much improved, + 3 = very much improved. Higher score indicated aesthetic improvement.
Number of Subjects With Treatment-emergent Adverse Events (TEAEs) Related to RadiesseFrom initial treatment (Day 1 for Treatment group and Week 24 for Control/Delayed treatment group) up to end of the study (up to Week 84)TEAEs are defined as AEs with onset on or after date of first administration of study treatment. Treatment related TEAEs are defined as any TEAEs related to diluted Radiesse treatment (that is, related to either injection procedure and/or device).

Countries

United States

Participant flow

Recruitment details

Subjects were recruited from 9 investigational sites in the United States.

Pre-assignment details

A total of 152 subjects were enrolled and randomized in the study.

Participants by arm

ArmCount
Treatment With Radiesse
Subjects received three injections of diluted Radiesse using cannula in the décolleté treatment area on Day 1, Week 6, and Week 12. Subjects were eligible to receive an optional retreatment at Week 36.
116
Untreated Control/Delayed Treatment With Radiesse
Subjects remained untreated until Week 24 and then received three injections of diluted Radiesse using cannula in the décolleté treatment area at Week 24, Week 30, and Week 36. Subjects in this group had no option of retreatment.
36
Total152

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event10
Overall StudyLost to Follow-up132
Overall StudyProtocol Violation01
Overall StudyWithdrawal by Subject216

Baseline characteristics

CharacteristicUntreated Control/Delayed Treatment With RadiesseTotalTreatment With Radiesse
Age, Continuous53.6 years
STANDARD_DEVIATION 8.08
53.6 years
STANDARD_DEVIATION 7.28
53.7 years
STANDARD_DEVIATION 7.05
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants25 Participants18 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants127 Participants98 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants3 Participants3 Participants
Race (NIH/OMB)
Black or African American
1 Participants6 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants2 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
35 Participants140 Participants105 Participants
Sex: Female, Male
Female
36 Participants152 Participants116 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1160 / 36
other
Total, other adverse events
17 / 1162 / 36
serious
Total, serious adverse events
2 / 1160 / 36

Outcome results

Primary

Percentage of Responders on Merz Aesthetic Scale (MAS) Décolleté Wrinkles - at Rest at Week 24

The percentage of responders (responder rate) was defined as the percentage of subjects achieving greater than or equal to (\>=) 1-point improvement on MAS décolleté wrinkles-at Rest from baseline to Week 24 as assessed by the blinded evaluator. Responder rate was assessed using MAS-at rest scale, where 0 = no wrinkles, 1 = mild wrinkles, 2 = moderate wrinkles, 3 = severe wrinkles, 4 = very severe wrinkles. Higher score indicated the worse outcome. This analysis was done using multiple imputation method to impute missing values.

Time frame: Week 24

Population: ITT Analysis Set.

ArmMeasureValue (NUMBER)
Treatment With RadiessePercentage of Responders on Merz Aesthetic Scale (MAS) Décolleté Wrinkles - at Rest at Week 2471.2 percentage of subjects
Untreated Control/Delayed Treatment With RadiessePercentage of Responders on Merz Aesthetic Scale (MAS) Décolleté Wrinkles - at Rest at Week 246.3 percentage of subjects
95% CI: [45.6, 74.4]
Secondary

Number of Subjects With Treatment-emergent Adverse Events (TEAEs) Related to Radiesse

TEAEs are defined as AEs with onset on or after date of first administration of study treatment. Treatment related TEAEs are defined as any TEAEs related to diluted Radiesse treatment (that is, related to either injection procedure and/or device).

Time frame: From initial treatment (Day 1 for Treatment group and Week 24 for Control/Delayed treatment group) up to end of the study (up to Week 84)

Population: SES included all subjects treated at least once.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment With RadiesseNumber of Subjects With Treatment-emergent Adverse Events (TEAEs) Related to Radiesse16 Participants
Untreated Control/Delayed Treatment With RadiesseNumber of Subjects With Treatment-emergent Adverse Events (TEAEs) Related to Radiesse0 Participants
Secondary

Percentage of Responders on MAS Décolleté Wrinkles - Dynamic at Week 24

The percentage of responders (responder rate) was defined as the percentage of subjects achieving \>= 1-point improvement on MAS décolleté wrinkles-Dynamic from baseline to Week 24 as assessed by the blinded evaluator. Responder rate was assessed using MAS-Dynamic scale, where 0 = no wrinkles, 1 = mild wrinkles, 2 = moderate wrinkles, 3 = severe wrinkles, 4 = very severe wrinkles. Higher score indicated the worse outcome. This analysis was done using multiple imputation method to impute missing values.

Time frame: Week 24

Population: ITT Analysis Set.

ArmMeasureValue (NUMBER)
Treatment With RadiessePercentage of Responders on MAS Décolleté Wrinkles - Dynamic at Week 2465.8 percentage of subjects
Untreated Control/Delayed Treatment With RadiessePercentage of Responders on MAS Décolleté Wrinkles - Dynamic at Week 2416.0 percentage of subjects
Secondary

Percentage of Subjects With Any Improvement on Investigator Global Aesthetic Improvement Scale (iGAIS) at Week 24

Improvement is defined as a rating of +1 (Improved), +2 (Much improved) or +3 (Very much improved). Treating investigators used iGAIS, where - 3 = very much worse, - 2 = much worse, - 1 = worse, 0 = no change, + 1 = improved, + 2 = much improved, + 3 = very much improved. Higher score indicated aesthetic improvement.

Time frame: Week 24

Population: ITT Analysis Set. Here overall number of subjects analyzed were the number of subjects with data available for analysis of this outcome measure at the given time point. This outcome measure was pre-specified and analyzed for subjects receiving Radiesse treatment only.

ArmMeasureValue (NUMBER)
Treatment With RadiessePercentage of Subjects With Any Improvement on Investigator Global Aesthetic Improvement Scale (iGAIS) at Week 2492.6 percentage of subjects
Secondary

Percentage of Subjects With Any Improvement on Subject Global Aesthetic Improvement Scale (sGAIS) at Week 24

Improvement is defined as a rating of +1 (Improved), +2 (Much improved) or +3 (Very much improved). Subjects used the sGAIS, where - 3 = very much worse, - 2 = much worse, - 1 = worse, 0 = no change, + 1 = improved, + 2 = much improved, + 3 = very much improved. Higher score indicated aesthetic improvement.

Time frame: Week 24

Population: ITT Analysis Set. Here overall number of subjects analyzed were the number of subjects with data available for analysis of this outcome measure at the given time point. This outcome measure was pre-specified and analyzed for subjects receiving Radiesse treatment only.

ArmMeasureValue (NUMBER)
Treatment With RadiessePercentage of Subjects With Any Improvement on Subject Global Aesthetic Improvement Scale (sGAIS) at Week 2487.4 percentage of subjects

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