Healthy Volunteer Clinical Trial
Official title:
Normal Reference Values in Han Adults of Skin Thickness and Blood Flow by High-frequency Ultrasound: a Multicenter Study in China
In recent years, high-frequency ultrasound has become a new non-invasive tool for the diagnosis of skin diseases, aesthetic medicine and preoperative and postoperative evaluation due to its higher resolution. The purpose of this multi-center Study is to establish the normal reference values of skin thickness and blood flow parameters by high-frequency ultrasound in Chinese Han adults, and to explore the influencing factors, so as to provide quantitative reference for the evaluation of facial skin aging degree and cosmetic treatment.
The skin is the body's largest organ and acts as a protective, permeable barrier against pathogen invasion and against chemical and physical attacks. Long-term exposure to solar ultraviolet radiation is a major factor in exogenous skin aging. With the gradual improvement of living standards and the development of medical cosmetology technology, Chinese consumers have gradually increased their acceptance of cosmetology consumption. Facial skin, as one of the important indicators of "beauty", has obviously received the attention of cosmetic surgeons and dermatologists. Skin thickness is one of the important indicators of facial aging. However, different gender, different parts of the skin thickness is very different, especially the facial skin, the thickness of the epidermis, dermis is different, and the facial plastic surgery, injection treatment, photoelectric treatment has a close relationship. In addition, the dermis is rich in blood vessels, especially in its deep layers, which play an important role in the nutritional support of tissues and homeostasis of the internal environment. With the increase of age, the degree of dermal vascularization decreases, which is also one of the factors affecting skin aging. Therefore, in aesthetic medicine, more accurate quantitative evaluation of skin thickness and blood flow rather than simple subjective evaluation is very important. Ultrasound is a non-invasive imaging technique widely used in clinic. In recent years, with the development of ultrasound technology, the frequency of ultrasonic probes has been increasing. Because of its higher resolution, high-frequency ultrasound can clearly display the layer and structure of the skin, and achieve accurate measurement of skin thickness and evaluation of dermal blood flow. High-frequency ultrasound has become a new non-invasive tool for the diagnosis of skin diseases, aesthetic medicine and preoperative and postoperative evaluation. The purpose of this multi-center Study is to establish the normal reference values of skin thickness and blood flow parameters by high-frequency ultrasound in Chinese Han adults, and to explore the influencing factors, so as to provide quantitative reference for the evaluation of facial skin aging degree and cosmetic treatment. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT06326723 -
Investigate the PK, Safety, and Tolerability After Single and Multiple Dose Daridorexant in Chinese Healthy Subjects
|
Phase 1 | |
| Recruiting |
NCT00001367 -
Diagnosis and History Study of Patients With Different Neurological Conditions
|
||
| Completed |
NCT02699710 -
Effect of Food, Rabeprazole, Methotrexate and Formulation on the Pharmacokinetics (PK) of GDC-0853 and the Effect of GDC-0853 on the PK of Methotrexate in Healthy Subjects
|
Phase 1 | |
| Completed |
NCT02231892 -
Repetitive Transcranial Magnetic Stimulation Equipment Testing and Pilot Study
|
N/A | |
| Not yet recruiting |
NCT06441916 -
Bioequivalence Study of Dabigatran Etexilate Capsules 150 mg in Healthy Thai Volunteers Under Fasting Conditions
|
Phase 1 | |
| Completed |
NCT03771586 -
A Study to Assess the Electrophysiology, Safety, Tolerability, and Pharmacokinetics of SAGE-718 Using a Ketamine Challenge in Healthy Subjects
|
Phase 1 | |
| Not yet recruiting |
NCT06337422 -
Bioequivalence Study of Generic Celecoxib 200 mg Capsules
|
Phase 1 | |
| Completed |
NCT03302182 -
Bioequivalence Study of Ritonavir Versus NORVIR in Healthy Chinese Subjects
|
Phase 1 | |
| Completed |
NCT05049343 -
Study of SAGE-904 Using a Ketamine Challenge to Evaluate Electrophysiology, Safety, Tolerability, and Pharmacokinetics in Healthy Participants
|
Phase 1 | |
| Recruiting |
NCT01629108 -
Normal Values in Hearing and Balance Testing
|
||
| Completed |
NCT02947854 -
Study to Assess Safety, Tolerability and Immune Response of Fimaporfin-induced Photochemical Internalisation of Antigen/Adjuvant
|
Phase 1 | |
| Completed |
NCT02534870 -
Pharmacokinetics and Safety of the Co-administration of ABT-450/Ritonavir/ABT-267 (ABT-450/r/ABT-267) and ABT-333 in Healthy Chinese Subjects
|
Phase 1 | |
| Completed |
NCT02224053 -
Drug-Drug Interaction Study With AZD9291 and Omeprazole in Healthy Volunteers
|
Phase 1 | |
| Completed |
NCT01676584 -
A Study of Single Dose RO6811135 in Healthy Volunteers
|
Phase 1 | |
| Completed |
NCT01697436 -
A Bioequivalence Study of an Oral Solution of Copegus (Ribavirin) Compared to Copegus Tablets
|
Phase 1 | |
| Completed |
NCT01684891 -
A 28-Day Pharmacokinetics Study of RG1662 in Healthy Male Volunteers
|
Phase 1 | |
| Completed |
NCT01711762 -
A Pharmacokinetics Study of Radioactive-Labeled GDC-0973 in Healthy Male Volunteers
|
Phase 1 | |
| Completed |
NCT02547259 -
Influence of Emotion in a Test Run Forgetfulness
|
N/A | |
| Completed |
NCT01433575 -
A Pharmacokinetic Study of RO4917838 in Healthy Chinese Volunteers
|
Phase 1 | |
| Completed |
NCT01579149 -
A Phase I Dose Escalation Study of Plerixafor in Healthy Subjects of Japanese Descent
|
Phase 1 |