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Behandling av deltagare med primär eller sekundär progressiv multipel skleros (IMPACT-MS)

17 september 2026 uppdaterad av: Tr1X, Inc.

En fas 1/2a, öppen, dosupptrappningsstudie för att utvärdera säkerheten och preliminär effekt av TRX319 hos personer med primär eller sekundär progressiv multipel skleros

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.

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Beräknad)

39

Fas

  • Fas 2
  • Fas 1

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studera Kontakt Backup

Studieorter

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

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 65 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Icke-randomiserad
  • Interventionsmodell: Sekventiell tilldelning
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Cohort 1

Dose Level 1
Biologisk: 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.
Experimentell: Cohort 1A

Dose Level 1 with pre-conditioning
Biologisk: 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.

Läkemedel: Bendamustine

Administration of bendamustine prior to TRX319 infusion
Experimentell: Cohort 2

Dose level 2
Biologisk: 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.
Experimentell: Cohort 2A

Dose Level 2 with pre-conditioning
Biologisk: 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.

Läkemedel: Bendamustine

Administration of bendamustine prior to TRX319 infusion
Experimentell: Cohort 3

Dose Level 3
Biologisk: 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.
Experimentell: Cohort 3A

Dose level 3 with pre-conditioning
Biologisk: 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.

Läkemedel: Bendamustine

Administration of bendamustine prior to TRX319 infusion

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
To assess the safety and tolerability of TRX319 infusion in subjects with Primary Progressive or Secondary Progressive Multiple Sclerosis.
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
To characterize target engagement via reduction of Oligoclonal bands (OCB) and/or normalization of cerebral spinal fluid (CSF) Immunoglobulin G (IgG) index
Tidsram: 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
Tidsram: 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)
Tidsram: 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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Tr1X, Inc.

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 mars 2026

Primärt slutförande (Beräknad)

1 augusti 2028

Avslutad studie (Beräknad)

1 januari 2029

Studieregistreringsdatum

Först inskickad

9 mars 2026

Först inskickad som uppfyllde QC-kriterierna

12 mars 2026

Första postat (Faktisk)

17 mars 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

21 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

17 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • TRX319-01

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Ja

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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