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Behandeling van deelnemers met primaire of secundaire progressieve multiple sclerose (IMPACT-MS)

17 september 2026 bijgewerkt door: Tr1X, Inc.

Een fase 1/2a, open-label, dosis-escalatiestudie om de veiligheid en de voorlopige werkzaamheid van TRX319 te evalueren bij proefpersonen met primaire of secundaire progressieve multiple sclerose

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.

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Geschat)

39

Fase

  • Fase 2
  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Contact Back-up

Studie Locaties

  • Verenigde Staten
    • California
      • La Jolla, California, Verenigde Staten, 92037
        • Werving
        • UC San Diego
        • Hoofdonderzoeker:
          • Jennifer Graves, MD
        • Contact:
    • Kansas
      • Kansas City, Kansas, Verenigde Staten, 66160
        • Werving
        • University of Kansas Medical Center
        • Contact:
    • Minnesota
      • Rochester, Minnesota, Verenigde Staten, 55912
        • Werving
        • Mayo Clinic
        • Contact:
        • Hoofdonderzoeker:
          • Michel Toledano, MD
    • Missouri
      • St Louis, Missouri, Verenigde Staten, 63110
        • Werving
        • Washington University, St. Louis
        • Contact:
    • New York
      • New York, New York, Verenigde Staten, 10029
        • Werving
        • Mt. Sinai
        • Hoofdonderzoeker:
          • Fred Lublin, MD
        • Contact:
          • Sarah Myoung, MBS
          • Telefoonnummer: 43391 2122413391
    • North Carolina
      • Durham, North Carolina, Verenigde Staten, 27710
        • Werving
        • Duke University
        • Hoofdonderzoeker:
          • Suma Shah
        • Contact:
    • Ohio
      • Cincinnati, Ohio, Verenigde Staten, 45219
        • Werving
        • University of Cincinnati
        • Contact:
    • Washington
      • Seattle, Washington, Verenigde Staten, 98122
        • Werving
        • Providence Swedish
        • Contact:
        • Hoofdonderzoeker:
          • Pavle Repovic, MD, PhD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar tot 65 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

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.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Cohort 1

Dose Level 1
Biologisch: TRX319

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.
Experimenteel: Cohort 1A

Dose Level 1 with pre-conditioning
Biologisch: TRX319

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.

Geneesmiddel: Bendamustine

Administration of bendamustine prior to TRX319 infusion
Experimenteel: Cohort 2

Dose level 2
Biologisch: TRX319

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.
Experimenteel: Cohort 2A

Dose Level 2 with pre-conditioning
Biologisch: TRX319

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.

Geneesmiddel: Bendamustine

Administration of bendamustine prior to TRX319 infusion
Experimenteel: Cohort 3

Dose Level 3
Biologisch: TRX319

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.
Experimenteel: Cohort 3A

Dose level 3 with pre-conditioning
Biologisch: TRX319

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.

Geneesmiddel: Bendamustine

Administration of bendamustine prior to TRX319 infusion

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
To assess the safety and tolerability of TRX319 infusion in subjects with Primary Progressive or Secondary Progressive Multiple Sclerosis.
Tijdsspanne: 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

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
To characterize target engagement via reduction of Oligoclonal bands (OCB) and/or normalization of cerebral spinal fluid (CSF) Immunoglobulin G (IgG) index
Tijdsspanne: 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
Tijdsspanne: 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)
Tijdsspanne: 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

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Tr1X, Inc.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 maart 2026

Primaire voltooiing (Geschat)

1 augustus 2028

Studie voltooiing (Geschat)

1 januari 2029

Studieregistratiedata

Eerst ingediend

9 maart 2026

Eerst ingediend dat voldeed aan de QC-criteria

12 maart 2026

Eerst geplaatst (Werkelijk)

17 maart 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

21 september 2026

Laatste update ingediend die voldeed aan QC-criteria

17 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • TRX319-01

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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