Skip to content

Phase I/IIa clinical study of PAL-222 targeting patients with Refractory skin ulcer

Phase I/IIa clinical study of PAL-222 targeting patients with Refractory skin ulcer

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2053240282
Enrollment
6
Registered
2025-03-04
Start date
2025-05-28
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

Refractory skin ulcers

Interventions

Apply one sheet of PAL-222 to the ulcer and cover with a wound dressing (except polyurethane film).

Sponsors

Kusano Hitoshi
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: (1) Patients aged 20 years or older at the time of obtaining consent (2) Patients with skin ulcers whose ulcer size has decreased by less than 50% compared to before the start of treatment even after 4 weeks or more of conservative standard treatment (3) Patients with an ulcer of 1 cm2 or more and 5 cm2 or less after debridement (4) Patients in whom, when there is an ulcer adjacent to the target ulcer, the distance between the margin of the target ulcer and the margin of the adjacent ulcer is at least 1 cm. (5) Patients with no signs of local infection in the ulcer to be treated (6) If the ulcer had the bone exposure, it needs to be within 10% of the ulcer area (7) Patients with skin reflux pressure of 30 mmHg or more at the treatment site (if the patient has an ulcer on the lower leg or foot) (8) Patients who have received a written explanation of this clinical trial from the principal investigator or clinical investigator, fully understood the information, and given their own written consent to participate in this clinical trial (9) Patients who are able to follow oral or written instructions from the principal investigator or clinical investigator

Exclusion criteria

Exclusion criteria: (1) Patients with any of the following systemic diseases 1) Poorly controlled diabetes mellitus (HbA1c greater than 10% at the most recent examination within 28 days prior to enrollment) 2) Hypoalbuminemia (serum albumin level less than 2 g/dL) 3) Patients requiring continuous oral steroids (prednisolone equivalent greater than 10 mg per day) (2) Patients requiring general anesthesia or lumbar anesthesia during the study period for the following reasons 1) When local anesthesia is not appropriate for debridement due to scarring or hardness of the wound 2) Patients who are mentally disturbed, have involuntary movements, or are unable to keep the wound at rest during transplantation (3) Patients with a history of allergy to human serum albumin, trypsin, anesthetics used in this study, antiseptics, or covering materials (4) Patients with abnormal findings on hematology, hematochemistry, coagulation, or urinalysis at the time of screening that would be problematic for participation in the clinical trial (5) Patients with positive HBs antigen, HCV antibody, HIV antibody, HTLV-1 antibody, or syphilis serology at screening (6) Patients with severe blood disorders (if any of the following criteria are met) 1) Hemoglobin less than 10.0 g/dL 2) White blood cell count less than 3,000 /microliter 3) Neutrophil count less than 1,500 / microliter 4) Platelet count less than 75,000 / microliter (7) Patients with severe heart failure (NYHA cardiac function classification III-IV) (8) Patients with severe hepatic impairment (with a history of or complicated by fulminant hepatitis, cirrhosis, liver tumor, or any of the following criteria) 1) Total bilirubin 1.5x (upper limit of reference value) or higher 2) AST (GOP) 3.0x (upper limit of reference value) or more 3) ALT (GPT) 3.0x (upper limit of reference value) or more 4) ALP 2.5x (upper limit of reference value) or higher (9) Patients with severe renal impairment (creatinine greater than 2 mg/dL) (10) Patients diagnosed with or requiring treatment for malignancy within 5 years prior to obtaining consent (11) Pregnant or lactating women, or patients who wish to become pregnant during the study period (12) (Missing number) (13) Patients with drug addiction or alcoholism (14) Patients who are currently participating in another clinical trial (15) Patients who have participated in this clinical trial once and had PAL-222 implanted (16) Patients who are judged to be inappropriate as subjects by the investigator or subinvestigator

Design outcomes

Primary

MeasureTime frame
1) Adverse events and malfunctions 2) Changes in clinical test values 3) Changes in vital signs

Contacts

Public ContactContact for Clinical Trial Information

PharmaBio corporation

clinicaltrial@pharmabio.co.jp+81-44-742-9980

Outcome results

None listed

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