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A Clinical Study Evaluating the Dermal Safety of Soluble Denosumab Microneedle Patches

A Clinical Study Evaluating the Dermal Safety of Soluble Denosumab Microneedle Patches

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07085520
Acronym
CSEDSSDMP
Enrollment
12
Registered
2025-07-25
Start date
2025-07-31
Completion date
2026-05-31
Last updated
2025-07-25

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

Conditions

Healthy, Osteoarthritis, Osteoarthritis (OA) of the Knee, Osteoporosis, Osteoporosis (Senile)

Brief summary

The goal of this clinical trial is to evaluate the skin safety of a soluble denosumab microneedle patch in participants with osteoporosis and osteoarthritis. The main questions it aims to answer are: * Is the soluble denosumab microneedle patch safe for use on the skin? * What are the potential skin reactions to the patch? Researchers will compare different doses of the microneedle patch to assess its safety. Participants will: * Apply the microneedle patch to four different areas around their knee * Undergo skin assessments at various time points after application * Be monitored for any adverse skin reactions The study will take place at a single center and involve a small number of participants to provide preliminary data on the safety of this novel drug delivery system.

Interventions

DRUGMicroneedle with 1.2mg Denosumab

This intervention uses microneedle patches loaded with 1.2mg of denosumab. The patch is made of a biocompatible material, polyvinyl pyrrolidone (PVP), and is applied to the skin around the knee. It aims to evaluate the skin safety and tolerability of the microneedle patch at this specific dose. Participants will apply 4 microneedle patches around their knee and avoid behaviors that may affect skin condition during the study.

DRUGMicroneedle with 0.24mg Denosumab

This intervention uses microneedle patches loaded with 0.24mg of denosumab. The patch is made of a biocompatible material, polyvinyl pyrrolidone (PVP), and is applied to the skin around the knee. It aims to evaluate the skin safety and tolerability of the microneedle patch at this specific dose. Participants will apply 4 microneedle patches around their knee and avoid behaviors that may affect skin condition during the study.

DRUGSaline Microneedle Patch

This intervention involves the use of a microneedle patch loaded with saline. The patch is made of a biocompatible material, polyvinyl pyrrolidone (PVP), and is applied to the skin around the knee. It serves as a control to assess the skin safety of the microneedle patch without the active drug. Participants will apply 4 microneedle patches around their knee and avoid behaviors that may affect skin condition during the study.

DRUGMicroneedle with 6mg Denosumab

This intervention uses microneedle patches loaded with 6mg of denosumab. The patch is made of a biocompatible material, polyvinyl pyrrolidone (PVP), and is applied to the skin around the knee. It aims to evaluate the skin safety and tolerability of the microneedle patch at this specific dose. Participants will apply 4 microneedle patches around their knee and avoid behaviors that may affect skin condition during the study.

Sponsors

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

1. Signed and dated informed consent. 2. Commitment to comply with the study protocol and cooperate throughout the study. 3. Age 18-70, healthy or adult male or female with osteoarthritis combined with osteoporosis. 4. No history of skin diseases or other underlying conditions. 5. No antihistamines, vasodilators, vasoconstrictors, anticoagulants, hormones, or immunosuppressants within the past month. 6. If of childbearing age, women must have used contraception for at least one month before screening and commit to using contraception throughout the study period and for a specified time after the study ends.

Exclusion criteria

1. Pregnant or breastfeeding women. 2. Smoking \>10 cigarettes per day or smoking history \>20 years. 3. Presence of conditions that may interfere with the study results (e.g., severe diseases, infectious diseases, allergies, etc.) or relevant medical history. 4. Individuals receiving systemic or local treatments that affect skin homeostasis. 5. Allergic or intolerant to polyvinylpyrrolidone (PVP) or polyvinyl alcohol (PVA). 6. Contraindications for denosumab (e.g., hypocalcemia).

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse ReactionsAssessed at 15 minutes, 24 hours, 48 hours, and 2 weeks post-application.Evaluate through skin response sheets: erythema, pain, swelling, etc.
Amount of painAssessed at 15 minutes, 24 hours, 48 hours, and 2 weeks post-application.Pain will be measured using the faces pain scales revised (0-2-4-6-8-10, 0: no pain, 10: very much pain).
Number of injection site reactionsAssessed at 15 minutes, 24 hours, 48 hours, and 2 weeks post-application.Injection site assessment for the following: Pain (grade 1/2/3) Tenderness (grade 1/2/3) Pruritus (grade 1/2/3) Erythema (absent/present) Induration (grade 1/2/3) Blister (absent/present) Ulceration (absent/present) Necrosis (absent/present) Ecchymosis (absent/present) If any of these signs or symptoms is present, it is regarded an injection site reaction.

Secondary

MeasureTime frameDescription
Soluble Denosumab Microneedle Patch Subject Satisfaction QuestionnaireAssessed at 2 weeks post-application.Assessed through questionnaires at the end of the study. 1. How satisfied are you with the application process of the microneedle patch? 2. How satisfied are you with the overall skin condition around the knee after using the microneedle patch? 3. Overall, how satisfied are you with the ease of using the microneedle patch? 4. Overall, now that you have tried this microneedle patch and completed the study, how likely are you to use this treatment again in the future? 5. Overall, how likely are you to recommend this microneedle patch treatment to a family member or friend? 5 = Very Likely; 4 = Somewhat Likely; 3 = Neutral; 2 = Somewhat Unlikely; 1 = Very Unlikely
Number of participants with abnormal laboratory tests resultsAssessed at 2 weeks post-application.Evaluation of blood routine and blood electrolytes to monitor participants' health status and safety.

Other

MeasureTime frameDescription
Frequency of both local and systemic Adverse Events2 weeksAn adverse event is any adverse change from the subject's baseline condition, i.e. any subjective signs and symptoms, or change in a concomitant disease present at the screening visit. This includes inter-current signs, symptoms, illness and significant deviations from baseline which may occur during the course of the clinical study, whether considered related to treatment or not.

Countries

China

Contacts

Primary ContactWei Tong
tongwei312@hust.edu.cn86 13437105155

Outcome results

None listed

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