Investigating Age Dependence of Fibroblast and Extracellular Matrix Responses to Cross-linked Hyaluronic Acid Filler in Human Skin

ConditionPhotoaging
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age30-50
SponsorUniversity of Michigan

About this trial

The purpose of the study is to investigate the impact of the injection of dermal filler on the quality of the skin dermal extracellular matrix in persons between the ages of 30-50 years. The quality of the dermal extracellular matrix will be assessed following injection of dermal filler compared to injection of saline vehicle.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Subjects must understand and sign the informed consent prior to participation

Subjects must be in generally good health

Subjects must be able and willing to comply with the requirements of the protocol

Disqualifiers

Pregnant, plan to become pregnant during the study, or are nursing a child. Participants will be asked to self-report pregnancy

Individuals with bleeding disorders

Tend to heal poorly or form very thick scars called keloids

Have a lidocaine sensitivity, including those with epilepsy, impaired cardiac conduction, severely impaired hepatic function or severe renal dysfunction.

Trial design

Design model

Single group

Treatments tested in this trial

  • Restylane-L

    Device

    Using a small gauge metal hub needle, two injections of CL-HA dermal filler (Restylane-L) will be performed, each into a small area (approximately 2 x 2 cm) of the mid-dermis of a forearm of a subject. Each injection will be 0.5 cc in volume, and will be approximately 2 cm apart from each other

  • Vehicle

    Device

    Two injections of vehicle will be performed in the same manner as Restylane-L and in the same forearm, totaling 4 injections. A plastic template will be used to track the location of the injections, relative to landmarks on the skin.

Treatment groups

15 Participants
are divided into 1 treatment group
Group A: Photodamaged skinExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Extracellular Matrix (ECM) deposition as measured using histological stain(s) of skin

Reported as a semi-quantitative grade. The grading scale is 1-4. The higher the number to increased ECM deposition.

Time frame
Approximately 4 weeks

Secondary outcomes

Other outcomes

Sponsors and contacts

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University of Michigan

Lead sponsor

Galderma R&D

Collaborator