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Shafer Width and Girth: The Use of Injectable Fillers for Penile Enhancement

Shafer Width and Girth: The Use of Injectable Fillers for Penile Enhancement

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04755634
Enrollment
20
Registered
2021-02-16
Start date
2021-04-23
Completion date
2024-06-27
Last updated
2026-08-18

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

Conditions

Micropenis

Brief summary

Injectable filler will be performed by Principal Investigator under sterile conditions for the enhancement of girth and surface area of the penis.

Detailed description

This prospective, single-arm, single-center study was conducted to evaluate the efficacy and safety of injectable dermal fillers for penile enhancement. Prior to enrollment, each participant underwent a comprehensive consultation and provided written informed consent after receiving detailed information regarding the study objectives, procedures, potential risks, benefits, and available alternatives. Following baseline evaluation (Day 1), including standardized photographic documentation and penile measurements, the procedure was performed under sterile conditions in an office-based setting by the Principal Investigator. Topical anesthesia was applied for approximately 10 minutes, after which participants were placed in supine position. A dorsal penile nerve block was administered using local anesthesia, followed by injections of study filler. Participants returned approximately two weeks after the initial treatment for an additional treatment session, when clinically indicated to achieve the planned treatment goal. Follow-up evaluations were conducted at 2, 6, 12 weeks, and at 1year after treatment. The primary efficacy endpoint was change in penile shaft girth from baseline. Safety assessments included systemic monitoring and documentation of treatment-related adverse events throughout the study period. The study was conducted in accordance with the principles of the International Council for Harmonization Good Clinical Practice (ICH GCP) guidelines and was reviewed and overseen by the Institutional Review Board (IRB), Advarra.

Interventions

DEVICEHyaluronic Acid

Injectable

Sponsors

Shafer Clinic Fifth Avenue
Lead SponsorNETWORK

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
21 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy males, * 21 to 65 years of age, * Seeking enhancement of their penile width and girth.

Exclusion criteria

* Patient with a history of psychological or psychiatric illness, * Congenital or acquired penile malformation, * Previous plastic surgery or non-invasive treatments of their penis, * Any chronic disease such as vascular disorder, urological disorder, myocardial infarction, hypertension, cerebrovascular accident or coagulopathy. * Patients with a history of allergic reactions to hyaluronic acid derivatives * Individuals with penises measured less than 6 cm in length in the flaccid position * Individuals with penises greater than 12.5 cm in length in the flaccid position. * Individuals with uncircumcised penises

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Penile Shaft Girth at 1 YearBaseline and 1-year post-treatment follow-upPenile Shaft Girth was measured in centimeters at baseline and at the1-year post-treatment follow-up. Change from baseline was calculated as the penile shaft girth at the 1-year follow-up minus the penile shaft girth at baseline. Positive values indicate an increase in penile shaft girth, and negative values indicate a decrease.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORDavid Shafer, MD

Shafer Clinic Fifth Avenue

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
Penile girth measurements obtained at baseline (Day 1).11.10 Centimeters
STANDARD_DEVIATION 1.07
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
20 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
6 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 19, 2026