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Phase 4 Master Protocol for Patients Prescribed Prademagene Zamikeracel for the Treatment of Wounds

4 de agosto de 2026 actualizado por: Abeona Therapeutics, Inc

The Master Protocol includes 3 studies (Study A, Study B, and Study C) that will evaluate pz-cel and related processes in the post-marketing setting.

Study A investigates the efficacy and safety of non-conforming pz-cel in patients with Recessive Dystrophic Epidermolysis Bullosa (RDEB).

Study B enables the collection of additional biopsy samples from patients receiving treatment with pz-cel.

Study C assesses the efficacy and safety of pz-cel in patient populations not represented in the VIITAL clinical trial (NCT04227106).

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Intervención / Tratamiento

Descripción detallada

The Master Protocol includes 3 studies (Study A, Study B, and Study C) that will evaluate pz-cel (LZRSE-COL7A1 gene-corrected cellular sheets with type VII collagen [C7] expression) and related processes in the post-marketing setting.

Pz-cel is a genetically engineered autologous cell therapy indicated for the treatment of wounds associated with RDEB. Pz-cel is composed of autologous keratinocytes from patients with mutations in the collagen type VII alpha 1 chain (COL7A1) gene, which have been transduced ex vivo with the Moloney leukemia virus-derived retroviral vector (LZRSE)-COL7A1. The gene-corrected cellular sheets express functional C7.

The pz-cel sheets are a one-time surgical application to debrided and cauterized wound beds of the corresponding patients with DEB. The COL7A1 transgene integrates into the host cell genome, resulting in durable expression and secretion of collagen protein, which addresses the underlying mechanism of the disease.

Study A is an open-label, non-randomized study in patients who are expected to receive gene-corrected cellular sheets (pz-cel) for the treatment of RDEB wound sites in the post-marketing setting and whose manufactured patient-specific batch of pz-cel intended for commercial treatment did not meet commercial release criteria, but had no safety concerns associated with its use. This study will allow surgical application of such non-conforming pz-cel when the benefit of application outweighs the risks. All patients will be followed through 24 weeks after treatment and may be eligible for further follow-up after Week 24. Patients will be evaluated at their Screening visit (30 days before surgery), at Day 0 (Surgery day), by phone on Week 4 (Month 1) and by Telehealth or Clinic Visit at Week 12 (Month 3) and Week 24 (Month 6).

Study B is a study to collect additional biopsy samples from patients who are expected to receive treatment with pz-cel in the post-marketing setting. The additional biopsy samples are being collected to support pz-cel product optimization. Patients receiving treatment with pz-cel can consent to have 2 additional 8-mm biopsies for use in the pz-cel assay and process development as well as in the optimization of the pz-cel manufacturing processes. The study will consist of Screening (in-person or via phone and eConsent), a pre-surgery biopsy and an End of Study Phone call 10-14 days after biopsy.

Study C is an open-label, non-randomized study in patients who are prescribed gene-corrected cellular sheets (pz-cel) in the post-marketing setting and who are part of a patient population not represented in the VIITAL Clinical Trial (NCT04227106). This study will enable patients with wounds that could benefit from treatment with pz-cel, especially those requiring special access for application of pz-cel, to receive pz-cel. All patients will be followed through 24 weeks after treatment and may be eligible for further follow-up after Week 24. Patients will be evaluated at their Screening visit (25-60 days before surgery), at Day -1 (one day prior to surgery), at Day 0 (Surgery Day), by phone on Week 4 (Month 1) and by Telehealth or Clinic Visit at Week 12 (Month 3) and Week 24 (Month 6).

Tipo de estudio

Intervencionista

Inscripción (Estimado)

100

Fase

  • Fase 4

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Niño
  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Study A

Inclusion Criteria

  1. Willing and able to provide informed consent/assent; if under the age of 18, guardian(s) is (are) willing and able to provide consent.
  2. Patients who are expected to receive pz-cel manufactured as intended for commercial treatment; however, the final manufactured product was non-conforming and therefore did not meet commercial release criteria.
  3. All women of childbearing potential should discuss reproductive and breastfeeding plans and precautions with the treating physician in accordance with the considerations for special populations in the United States Prescribing Information (USPI).

Exclusion Criteria

  1. Inability to adequately follow the protocol and ensure the protection of cellular sheet sites, as determined by the Investigator.
  2. Hypersensitivity to vancomycin or amikacin.
  3. The presence of medical illness expected to complicate participation and/or compromise the safety of this technique, such as, but not limited to, active infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C.
  4. Evidence of systemic infection.
  5. Current evidence of squamous cell carcinoma (SCC) in the area that will undergo pz-cel application.
  6. Grade 3 clinical event or laboratory abnormality prior to pz-cel treatment, with the exception of abnormalities such as esophageal strictures, anemia, low albumin, and pain/itch, which are expected in patients with severe DEB.
  7. Any other circumstance where the Investigator believes that it is not appropriate for the patient to participate in the study.

Study B

Inclusion Criteria

  1. Willing and able to provide informed consent/assent; if under the age of 18, guardian(s) is (are) willing and able to provide consent.
  2. Patients who are expected to receive treatment with pz-cel and are receiving a biopsy prior to pz-cel application in the post-marketing setting.

Exclusion Criteria

1. Any circumstance where the Investigator believes that the patient may not be appropriate for participation in the study.

Study C

Inclusion Criteria:

  1. Willing and able to provide informed consent/assent; if under the age of 18, guardian(s) is (are) willing and able to provide consent.
  2. Patients who were prescribed pz-cel for commercial treatment but require special access defined in the protocol for treatment to occur.
  3. All women of childbearing potential must have a negative urine pregnancy test and agree to use a reliable birth control method throughout the duration of the study.

Exclusion Criteria:

  1. Inability to properly follow protocol assessments and protect cellular sheet sites as determined by the Investigator.
  2. Currently enrolled in an interventional clinical trial involving an investigational medicinal product to treat DEB or receipt of the investigational therapy within the 3 months prior to pz-cel application.
  3. Breastfeeding.
  4. The presence of medical illness expected to complicate participation and/or compromise the safety of this technique, such as, but not limited to, active infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C.
  5. Evidence of systemic infection.
  6. Current evidence or a history of SCC in the area that will undergo pz-cel application.
  7. Active drug or alcohol addiction.
  8. Hypersensitivity to vancomycin or amikacin.
  9. Grade 3 clinical event or laboratory abnormality prior to pz-cel treatment, with the exception of abnormalities such as esophageal strictures, anemia, low albumin, and pain/itch, which are expected in patients with severe DEB.
  10. Any other circumstance where the Investigator believes that it is not appropriate for the patient to participate in the study.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Study A
Clinical Evaluation of Prademagene Zamikeracel (Pz-cel) Treatment in Patients With Recessive Dystrophic Epidermolysis Bullosa (RDEB) Who Were Prescribed Pz-cel and Received Non-conforming Pz-cel in the Post-marketing Setting
Biológico: Non-conforming pz-cel surgical application to RDEB wounds
Non-conforming pz-cel is pz-cel intended for commercial treatment that did not meet commercial release criteria, but had no safety concerns associated with its use.
Otro: Study B
Tissue Collection Study for Patients Undergoing Biopsies for Treatment With Prademagene Zamikeracel (Pz-cel)
Procedimiento: Additional biopsies
Additional biopsy samples from patients who are expected to receive treatment with pz-cel in the post-marketing setting.
Experimental: Study C
Post-Marketing Pz-cel Access Study in Dystrophic Epidermolysis Bullosa (DEB) Evaluating Patient Populations Not Represented in the VIITAL Clinical Trial (NCT04227106)
Biológico: Pz-cel surgical application to DEB wounds
This intervention is for patients requiring special access for application of pz-cel.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Study A - Wound Healing ≥50%
Periodo de tiempo: From Baseline at Week 24 (Month 6)
Proportion of RDEB wounds with healing ≥50% from Baseline at Week 24 (Month 6) as determined by direct Investigator assessment.
From Baseline at Week 24 (Month 6)
Study A - Pain Severity Scale (Wong-Baker FACES)
Periodo de tiempo: At Week 24 (Month 6)
Pain reduction assessed by the Wong-Baker FACES Pain Rating Scale (for patients ≥6 years of age) at Week 24 (Month 6). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Week 24 (Month 6)
Study C - Wound Healing ≥50%
Periodo de tiempo: From Baseline at Week 24 (Month 6)
Proportion of wounds with healing ≥50% from Baseline at Week 24 (Month 6) as determined by direct Investigator assessment.
From Baseline at Week 24 (Month 6)
Study C - Pain Severity Scale (Wong-Baker FACES)
Periodo de tiempo: At Week 24 (Month 6)
Pain reduction assessed by Wong-Baker FACES Pain Rating Scale (for patients ≥6 years old) at Week 24 (Month 6). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Week 24 (Month 6)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Study A - Wound Healing ≥50%
Periodo de tiempo: At Week 12 (Month 3)
Proportion of RDEB wounds with ≥50% healing at Week 12 (Month 3) as determined by direct Investigator assessment.
At Week 12 (Month 3)
Study A - Wound Healing ≥75%
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Proportion of RDEB wounds with ≥75% healing at Weeks 12 (Month 3) and 24 (Month 6) as determined by direct Investigator assessment.
At Weeks 12 (Month 3) and 24 (Month 6)
Study A - Wound Healing Complete
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Proportion of RDEB wounds with complete healing (i.e., re-epithelialization with no drainage or erosion and presence of only minor crusting) at Weeks 12 (Month 3) and 24 (Month 6) as determined by direct Investigator assessment.
At Weeks 12 (Month 3) and 24 (Month 6)
Study A - Pain Severity Scale (Wong-Baker FACES)
Periodo de tiempo: At Week 12 (Month 3)
Pain reduction assessed by the Wong-Baker FACES Pain Rating Scale (for patients ≥6 years of age) at Week 12 (Month 3). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Week 12 (Month 3)
Study A - Worst Itch Severity Scale
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Change in scores of Worst Itch Numeric Rating Scale (WI-NRS; for patients ≥6 years of age) assessed at Weeks 12 (Month 3) and 24 (Month 6). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Weeks 12 (Month 3) and 24 (Month 6)
Study C - Wound Healing ≥50%
Periodo de tiempo: At Week 12 (Month 3)
Proportion of DEB wounds with ≥50% healing at Week 12 (Month 3) as determined by direct Investigator assessment.
At Week 12 (Month 3)
Study C - Wound Healing ≥75%
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Proportion of DEB wounds with ≥75% healing at Weeks 12 (Month 3) and 24 (Month 6) as determined by direct Investigator assessment.
At Weeks 12 (Month 3) and 24 (Month 6)
Study C - Wound Healing Complete
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Proportion of DEB wounds with complete healing (i.e., re-epithelialization with no drainage or erosion and presence of only minor crusting) at Weeks 12 (Month 3) and 24 (Month 6) as determined by direct Investigator assessment.
At Weeks 12 (Month 3) and 24 (Month 6)
Study C - Pain Severity Scale (Wong-Baker FACES)
Periodo de tiempo: At Week 12 (Month 3)
Pain reduction assessed by the Wong-Baker FACES Pain Rating Scale (for patients ≥6 years of age) at Week 12 (Month 3). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Week 12 (Month 3)
Study C - Worst Itch Severity Scale
Periodo de tiempo: At Weeks 12 (Month 3) and 24 (Month 6)
Change in scores of WI-NRS (for patients ≥6 years of age) assessed at Weeks 12 (Month 3) and 24 (Month 6). The minimum score value is 0 and the maximum score value is 10, with the higher scores being the worse outcome.
At Weeks 12 (Month 3) and 24 (Month 6)

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Study A - The number of treatment-related cutaneous malignancies.
Periodo de tiempo: From enrollment to Week 24
The number and incidence of treatment-related cutaneous malignancies.
From enrollment to Week 24
Study A - The number of treatment-emergent adverse events (AEs) and serious adverse events (SAEs)
Periodo de tiempo: From enrollment to Week 24
The number and incidence of treatment-emergent adverse events (AEs) and serious adverse events (SAEs) related to pz-cel.
From enrollment to Week 24
Study A - The number of positive replication-competent retrovirus (RCR) testing results
Periodo de tiempo: From enrollment to Week 24
The number and incidence of positive replication-competent retrovirus (RCR) testing results required for AEs and SAEs where retroviral infection is a consideration.
From enrollment to Week 24
Study A - The number of all treatment-emergent AEs and SAEs.
Periodo de tiempo: From enrollment to Week 24
The number and incidence of all treatment-emergent AEs and SAEs.
From enrollment to Week 24
Study C - The number of treatment-related cutaneous malignancies.
Periodo de tiempo: From enrollment to Week 24
The number and incidence of treatment-related cutaneous malignancies.
From enrollment to Week 24
Study C - The number of treatment-emergent AEs and SAEs
Periodo de tiempo: From enrollment to Week 24
The number and incidence of treatment-emergent AEs and SAEs related to pz-cel.
From enrollment to Week 24
Study C - The number of positive RCR testing results required for AEs and SAEs
Periodo de tiempo: From enrollment to Week 24
The number and incidence of positive RCR testing results required for AEs and SAEs where retroviral infection is a consideration.
From enrollment to Week 24
Study C - The number of all treatment-emergent AEs and SAEs.
Periodo de tiempo: From enrollment to Week 24
The number and incidence of all treatment-emergent AEs and SAEs.
From enrollment to Week 24

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Abeona Therapeutics, Inc

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

1 de noviembre de 2026

Finalización primaria (Estimado)

1 de noviembre de 2031

Finalización del estudio (Estimado)

1 de julio de 2032

Fechas de registro del estudio

Enviado por primera vez

16 de julio de 2026

Primero enviado que cumplió con los criterios de control de calidad

16 de julio de 2026

Publicado por primera vez (Actual)

21 de julio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

6 de agosto de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

4 de agosto de 2026

Última verificación

1 de julio de 2026

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • Pz-cel-CL-402

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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