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Tratamiento de Participantes con Esclerosis Múltiple Primaria o Secundaria Progresiva (IMPACT-MS)

17 de septiembre de 2026 actualizado por: Tr1X, Inc.

Un estudio de Fase 1/2a, abierto, de escalada de dosis para evaluar la seguridad y eficacia preliminar de TRX319 en sujetos con esclerosis múltiple primaria o secundaria progresiva

The goal of this clinical trial is to treat male and female participants with two types of Multiple Sclerosis (MS) called primary progressive or secondary progressive MS.

The main questions the trial aims to answer are the following:

  • Is TRX319 safe when administered to patients with progressive forms of MS?
  • At what dose does TRX319 work the best to treat participants with primary and or secondary progressive MS?
  • Is pre-conditioning (with Bendamustine) needed to allow TRX319 to better treat participants with primary and/or secondary progressive MS?

Participants will be asked to be on study for up 1 year and may receive up to 3 total administrations of TRX319. While on study, participants will have blood tests and other assessments (MRI scans and lumbar punctures) done to understand the safety of TRX319 and how it may benefit their multiple sclerosis.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

39

Fase

  • Fase 2
  • Fase 1

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

Copia de seguridad de contactos de estudio

Ubicaciones de estudio

    • California
      • La Jolla, California, Estados Unidos, 92037
        • Reclutamiento
        • UC San Diego
        • Investigador principal:
          • Jennifer Graves, MD
        • Contacto:
    • Kansas
      • Kansas City, Kansas, Estados Unidos, 66160
        • Reclutamiento
        • University of Kansas Medical Center
        • Contacto:
          • Sharon Lynch, MD
          • Número de teléfono: 913-588-6980
          • Correo electrónico: SLYNCH@kumc.edu
    • Minnesota
      • Rochester, Minnesota, Estados Unidos, 55912
        • Reclutamiento
        • Mayo Clinic
        • Contacto:
        • Investigador principal:
          • Michel Toledano, MD
    • Missouri
      • St Louis, Missouri, Estados Unidos, 63110
        • Reclutamiento
        • Washington University, St. Louis
        • Contacto:
          • Susan Sommer
          • Número de teléfono: 314-362-3293
          • Correo electrónico: foxs@wustl.edu
    • New York
      • New York, New York, Estados Unidos, 10029
        • Reclutamiento
        • Mt. Sinai
        • Investigador principal:
          • Fred Lublin, MD
        • Contacto:
          • Sarah Myoung, MBS
          • Número de teléfono: 43391 2122413391
    • North Carolina
      • Durham, North Carolina, Estados Unidos, 27710
        • Reclutamiento
        • Duke University
        • Investigador principal:
          • Suma Shah
        • Contacto:
    • Ohio
      • Cincinnati, Ohio, Estados Unidos, 45219
        • Reclutamiento
        • University of Cincinnati
        • Contacto:
          • Kristine Suder Coordinator
          • Número de teléfono: 513-558-3920
          • Correo electrónico: suderkl@ucmail.uc.edu
    • Washington
      • Seattle, Washington, Estados Unidos, 98122
        • Reclutamiento
        • Providence Swedish
        • Contacto:
        • Investigador principal:
          • Pavle Repovic, MD, PhD

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

18 años a 65 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  1. Clinical diagnosis of MS with evidence of PPMS or SPMS according to 2025 McDonald criteria.
  2. Expanded Disability Status Scale (EDSS) range ≥ 2.5 to ≤ 6.5.
  3. Evidence of clinical disability progression within 2 years prior to enrollment.
  4. Documented presence of CSF-restricted OCBs and/or elevated IgG index and/or κ free light chain.
  5. Males and females ≥ 18 and ≤ 65 years of age at time of consent.
  6. Evidence of adequate organ function
  7. Women of child bearing potential have a negative pregnancy test at screening.
  8. Contraceptive use by all participants while on study.
  9. Participants must be able to understand, consent, and be willing and able to complete all specified procedures and visits.
  10. Positive varicella zoster virus titer. Participants who test seronegative for varicella zoster virus IgG antibodies need to complete vaccination ≥ 4 weeks prior to TRX319 infusion.
  11. Participants must be willing to refrain from donating blood for 1 year after TRX319 infusion.

Exclusion Criteria:

  1. MS clinical stability on disease modifying therapy.
  2. Clinical relapse of MS in the 1 year prior to study entry.
  3. Diseases other than MS to explain the first demyelinating event, including aquaporin 4 IgG or myelin oligodendrocyte glycoprotein-IgG seropositivity.
  4. Prior treatment with CAR-T or gene therapy product directed at any target.
  5. Prior treatment with mitoxantrone, cladribine (or other chemotherapies), or alemtuzumab within 2 years prior to TRX319 dose.
  6. Prior treatment with CD20-depleting antibodies within 3 months and prior treatment with Bruton's tyrosine kinase inhibitor (BTKi) and sphingosine 1 phosphate (S1P) modulators within 1 month of TRX319 dose.
  7. Plan to or have received live, attenuated vaccines less than 4 weeks (28 days) prior to TRX319 infusion, and other vaccines less than 2 weeks (14 days) prior to TRX319 infusion.
  8. Serologic status reflecting active hepatitis B or C infection.
  9. Positive serology for human immunodeficiency virus (HIV).
  10. History of progressive multifocal leukoencephalopathy.
  11. Untreated active, or active with documented completed treatment but without a negative chest X-ray that shows no evidence of active tuberculosis, or latent tuberculosis.
  12. Primary immunodeficiency as defined by a known genetic disorder.
  13. History of splenectomy.
  14. Impaired cardiac function or clinically significant cardiac disease.
  15. Previous or concurrent malignancy.
  16. Prior organ transplant, or allogeneic hematopoietic stem cell transplantation or recipient of peripheral blood products < 3 years prior to TRX319 infusion.
  17. Major surgery within 4 weeks prior or planned within 4 weeks after TRX319 administration.
  18. History of any other neurologic disorder or medical condition the Investigator considers would increase the risk for the participant, including seizure disorders.
  19. Life-threatening allergies, hypersensitivity, or documented intolerance to TRX319 drug product excipients.
  20. Subjects that are pregnant, breast feeding or aim to become pregnant during the study period (Subjects must agree to use a highly effective method of contraception).
  21. Serious and/or uncontrolled medical condition that, in the Investigator's judgment, would cause unacceptable safety risk, interfere with study procedures or results, or compromise compliance with the protocol.

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 Secuencial
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Cohort 1

Dose Level 1

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Experimental: Cohort 1A

Dose Level 1 with pre-conditioning

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Administration of bendamustine prior to TRX319 infusion

Experimental: Cohort 2

Dose level 2

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Experimental: Cohort 2A

Dose Level 2 with pre-conditioning

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Administration of bendamustine prior to TRX319 infusion

Experimental: Cohort 3

Dose Level 3

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Experimental: Cohort 3A

Dose level 3 with pre-conditioning

TRX319 is an investigational research cell therapy that may treat and provide long term relief to individuals suffering from Primary Progressive Multiple Sclerosis and/or Secondary Progressive Multiple Sclerosis.

Administration of bendamustine prior to TRX319 infusion

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
To assess the safety and tolerability of TRX319 infusion in subjects with Primary Progressive or Secondary Progressive Multiple Sclerosis.
Periodo de tiempo: From baseline until 12 months post TRX319 Infusion
  • Number of participants with severity of treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (TESAEs)
  • Rate of Adverse Events of Special Interest (AESIs) in participants
  • The safety of TRX319 determined by negative Replication Competent Lentivirus (RCL) at approximately 3-months, 6-months, and 12-months
From baseline until 12 months post TRX319 Infusion

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
To characterize target engagement via reduction of Oligoclonal bands (OCB) and/or normalization of cerebral spinal fluid (CSF) Immunoglobulin G (IgG) index
Periodo de tiempo: From baseline until 12 months post TRX319 Infusion
  • Reduction of OCB in CSF
  • Reduction and/or normalization of CSF IgG index
From baseline until 12 months post TRX319 Infusion
To evaluate the effects of TRX319 on disease progression/reactivation by gadolinium-enhancing MRI
Periodo de tiempo: From baseline until 12 months post TRX319 Infusion

No increase in gadolinium-enhanced T1-weighted lesions and no new or enlarging T1- or T2-weighted lesions in brain and cervical spinal cord

From baseline until 12 months post TRX319 Infusion
To evaluate disease response, as measured by the Neurostatus Expanded Disability Status Scale (EDSS)
Periodo de tiempo: From baseline to approximately 12 months post TRX319 infusion

Measure of disease response based on change in disability and walking score at Weeks 12, 24, 36, and 48.

From baseline to approximately 12 months post TRX319 infusion

Colaboradores e Investigadores

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

Patrocinador

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 (Actual)

1 de marzo de 2026

Finalización primaria (Estimado)

1 de agosto de 2028

Finalización del estudio (Estimado)

1 de enero de 2029

Fechas de registro del estudio

Enviado por primera vez

9 de marzo de 2026

Primero enviado que cumplió con los criterios de control de calidad

12 de marzo de 2026

Publicado por primera vez (Actual)

17 de marzo de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

21 de septiembre de 2026

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

17 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

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. .