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A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate Efficacy and Safety of NPC-12G for Skin Lesions in Patients with Neurofibromatosis type 1

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate Efficacy and Safety of NPC-12G for Skin Lesions in Patients with Neurofibromatosis type 1 - NEDOC-2 Study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000036527
Enrollment
63
Registered
2019-04-22
Start date
2019-05-10
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Neurofibromatosis type 1

Interventions

0.2% NPC-12G gel topically administered twice a day for 52 weeks 0.4% NPC-12G gel topically administered twice a day for 52 weeks Placebo gel topically administered twice a day for 52 weeks

Sponsors

Osaka University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients diagnosed as neurofibromatosis type 1 according to the clinical diagnostic criteria in guideline of Japanese Dermatological Association 2) Patients with 10 skin lesions (at least 5 lesions) that can be selected from those of the maximum size. The skin lesions can be taken pictures by 3D camera and must satisfy all of the following conditions. a)Tumors of 3 mm or longer in longest diameter measured by ruler. b)Tumors located solitary c)Skin lesions without hair d)Tumors of mountain-like shape with no shadows when taken pictures from above (bulb shape or gourd shape tumor should not be selected) e)Tumors not located on the skin with large expansion and contraction such as inside of the elbow or the scruff. 3) Patients who is 3 years old or elder 4) Patients who provide written informed consent by themselves or legally acceptable representatives

Exclusion criteria

Exclusion criteria: 1) Patients who treated with mTOR inhibitors (sirolimus, everolimus or temsirolimus), within 12 months prior to enrollment. 2) Patients who treated with RAS-MAPK inhibitors (sorafenib, regorafenib or lenvatinib), within 12 months prior to enrollment. 3) Patients who have active infectious lesions. 4) Patients who have abnormal findings (pneumonic lesions) by chest X-ray inspection. 5) Patients with creatinine clearance less than 50ml/min. 6) Patients with uncontrolled dyslipidemia (serum triglyceride is 500mg / dL or more, or LDL cholesterol is 190mg / dL or more even treated) 7) Patients who have severe complications such as cardiac disease, liver disease, pulmonary disease, hematological disorder or malignant tumor . 8) Patients who have previously experienced alcoholic sensitivity or allergy to sirolimus. 9) Patients who are pregnant or lactating. 10) Patients who cannot agree to use effective contraceptive methods during the study period and until 8 weeks after treatment. 11) Patients who have entered another clinical trial within 6 months prior to enrollment.

Design outcomes

Primary

MeasureTime frame
Response rate on the changes from baseline in the volume of cutaneous tumor (measured with 3D camera) after 52 week treatment

Secondary

MeasureTime frame
1) Time course of changes from baseline in the volume of cutaneous tumor (measured with 3D camera) 2) Response rate on the changes from baseline in the volume of cutaneous tumor (measured with 3D camera) after 16 week, 28 week and 40 week treatment 3) Time course of changes from baseline in the area of cutaneous tumor (measured with ruler) 4) Improvement of cutaneous lesions after 28 and 52 week treatment judged by physician in charge

Countries

Japan

Contacts

Public ContactMari Kaneda

Osaka University Hospital Department of Dermatology

mkaneda@derma.med.osaka-u.ac.jp06-6879-3031

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026