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The efficacy and safety of a novel PDLLA microspheres injectable compare to Normal Saline for the treatment of striae distensae at upper thigh in Thailand

The efficacy and safety of a novel PDLLA microspheres injectable compare to Normal Saline for the treatment of striae distensae at upper thigh in Thailand

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260710022
Enrollment
30
Registered
2026-07-10
Start date
2026-06-22
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

striae striae, PDLLA

Interventions

Treatments will be administered using a 25G, 50 mm blunt cannula into the deep dermis with a fanning technique. Three treatment sessions will be performed at 1 month intervals.,PDLLA (150 mg/vial) wil
Active Comparator Device,Experimental Device
Normal saline control,Poly-D, L-Lactic Acid (PDLLA)

Sponsors

Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1. Male or female subjects aged 20 to 60 years. 2. Presence of bilateral striae distensae on the thighs for at least 3 months. 3. Thai individuals of Asian ethnicity.

Exclusion criteria

Exclusion criteria: 1. Pregnant or breastfeeding women. 2. Subjects with a history of platelet disorders, coagulation disorders, anemia, liver disease, malignancy, or immunodeficiency disorders. 3. Current smokers or subjects with a history of heavy alcohol consumption. 4. Presence of dermatitis, wounds, or skin infections in the treatment area. 5. History of allergy to local anesthetics. 6. Current use of hormonal therapy, oral contraceptives (oral or injectable), or regular use of nonsteroidal anti-inflammatory drugs (NSAIDs). 7. Current use of medications affecting blood coagulation, such as aspirin or anticoagulants. 8. History of laser treatment on the thighs within 6 months prior to study enrollment. 9. History of hypertrophic scars or keloids. 10. Diagnosed psychiatric disorders confirmed by a psychiatrist. 11. History of autoimmune disease. 12. Current use of immunosuppressive medications. 13. History of severe allergic reactions (anaphylaxis). 14. Use of vitamin E, fish oil supplements, or other agents that may affect platelet function within 2 weeks prior to enrollment. 15. Subjects unwilling to allow photographic documentation for treatment evaluation.

Design outcomes

Primary

MeasureTime frame
Texture Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Antera3D,Wrinkles Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Antera3D

Secondary

MeasureTime frame
Skin pliability Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Cutometer,Skin elasticity Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Cutometer,Melanin index Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Mexameter,Erythema index Baseline, 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Mexameter,Physician improvement assessment compared to baseline 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Quartile scale,Participants improvement assessment compared to baseline 1 month after 1st treatment, 1 month after 2nd treatment, 1, 3, 6, 9 and 12 months after 3rd treatment Quartile scale,Safety 1st, 2nd and 3rd treatment Adverse events

Countries

Thailand

Contacts

Public ContactThanya Techapichetvanich

Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University

thanya.tec@gmail.com024194333

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026