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Mycophenolate After Stem Cell Transplant for Systemic Sclerosis (IMPACT-SSc)

5. august 2026 oppdatert av: Ottawa Hospital Research Institute

Immunomodulatory Maintenance Therapy Post-Autologous Hematopoietic Stem Cell Transplantation for Prevention of Systemic Sclerosis Relapse: A Pilot Randomized Trial

A pilot single center randomized trial to test whether a full-scale RCT evaluating the role of post-AHSCT maintenance immunosuppression with MMF in preventing disease relapse is feasible .

We are studying whether a brief course of treatment with MMF after AHSCT will serve to prevent disease relapse.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This study is performed determine the feasibility of a larger pragmatic RCT to evaluate the effectiveness of post- Autologous Hemopoietic Stem Cell Transplant (AHSCT) maintenance therapy with mycophenolate mofetil (MMF) in the prevention of Systemic sclerosis (SSc) relapse.

The study will include 6 participants who will be randomized at 1:1 ratio to treatment (MMF) or control arm (no treatment) for 6 months.

The participants will have 6 visits in total : An initial clinic visit will occur prior to stem cell collection. Post-AHSCT, in-person follow-up visits are scheduled on days 30, 90, 180, 270, and 300, with windows of +/- 1 week for days 30 and 90 and +/- 2 weeks for days 180, 270 and 300.

These visits will be coordinated at an established multidisciplinary (Rheumatology + Cell Therapy) clinic that are part of the patient's clinical care. At each visit, the participants will be asked to complete health questionnaires and laboratory tests will be performed as part of the standard of care of AHSCT recipients.

Studietype

Intervensjonell

Registrering (Antatt)

6

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

  • Navn: Clinical Research Assistant
  • Telefonnummer: 81630 613 738 8400
  • E-post: nasaidi@ohri.ca

Studiesteder

    • Ontario
      • Ottawa, Ontario, Canada
        • The Ottawa Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Consenting participants 18 years of age or older who are initiating AHSCT at The Ottawa Hospital for management of SSc.

Exclusion Criteria:

  • Exclusion criteria are focused on patient safety, namely inability to receive treatment with

MMF due to contraindications as determine at time of randomization (day 90 / clinic visit #3) including:

  • Renal insufficiency (eGFR <25 mL/minute/1.73m2) or
  • Neutropenia (ANC <1.0 x 103/mcL) or
  • Thrombocytopenia (platelet count <50 000/mcL)
  • Previously documented intolerance.
  • Pregnant or breastfeeding - Women of childbearing potential who are not willing to use a highly effective method of contraception for the duration of study participation will be excluded

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Mycophenolate mofetil (MMF)
MMF 1000mg p.o. b.i.d. starting at day 90 post-AHSCT. This proposed MMF regimen is used in the management of rheumatic diseases and described in current literature and clinical guidelines. Duration of 6 months
MMF 1000mg p.o. b.i.d. starting at day 90 post-AHSCT and continued for 6 months.
Ingen inngripen: Control arm
No scleroderma prophylaxis (current standard of care)

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Feasibility:
Tidsramme: 18 months
The number of participants enrolled at a single center over 18 months.
18 months
Safety : AEs/SAEs
Tidsramme: Day 90 (treatment start) , Day 180, day 270
The proportion of patients experiencing a serious AE OR an AE greater that grade 2 (see below) OR an AE requiring discontinuation of the study drug in a participant who has received at least one dose of the study intervention
Day 90 (treatment start) , Day 180, day 270
Efficacy :
Tidsramme: At day 0,90,180 and 270
-Proportion of patients showing an increase in mRSS of >7 between timepoints .
At day 0,90,180 and 270
Efficacy:
Tidsramme: At day 0,90,180 and 270
-Proportion of patients requiring initiation of immunosuppressive therapy for progressive SSc manifestations as determined by their treating physicians.
At day 0,90,180 and 270

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Feasibility: Consent rate:
Tidsramme: Both prior to AHSCT (clinic visit #1) and at day 90 (clinic visit #3) prior to randomization.
Proportion of eligible patients who provide consent .
Both prior to AHSCT (clinic visit #1) and at day 90 (clinic visit #3) prior to randomization.
Feasibility: Retention rate: Proportion of participants retained
Tidsramme: Day 270 (clinic visit #5)
Proportion of participants retained
Day 270 (clinic visit #5)
Feasibility: Study completion rate:
Tidsramme: Day 270
Proportion of participants who completed proposed clinical outcomes at all pre determined time points
Day 270
Feasibility: Adherence rate:
Tidsramme: Day 180 and Day 270
Adherence to study drug measured by proportion of prophylaxis doses received measured by pill counting at follow-up visits.
Day 180 and Day 270
Auto-antibody testing (clinical)
Tidsramme: Prior to AHSCT and Day 180 (visit# 4)
Proportion of patients with a change in auto-antibody testing
Prior to AHSCT and Day 180 (visit# 4)
Clinical outcomes:
Tidsramme: day 0, 90, 180 and 270
Proportion of patients showing a change between timepoints in Modified Rodnan Skin Score (mRSS): Total score range 0 to 51. Higher scores indicate greater skin thickening and more severe skin involvement .
day 0, 90, 180 and 270
Clinical outcome:
Tidsramme: day 0,90,180 and 270

Proportion of patients showing a change in Scleroderma Health Assessment Questionnaire (SHAQ) Disability Index between timepoints.

Score range: 0 to 3. Higher scores indicate greater functional disability and worse health status.

day 0,90,180 and 270
Clinical outcome:
Tidsramme: Day 0,90,180 and 270
Proportion of patients showing a change in global score between timepoints Patient and physician global score: Visual analog scale (0 to 10)
Day 0,90,180 and 270

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Samarbeidspartnere

Etterforskere

  • Hovedetterforsker: Nancy Maltez, Dr, The Ottawa Hospital

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. august 2026

Primær fullføring (Antatt)

1. desember 2028

Studiet fullført (Antatt)

1. desember 2029

Datoer for studieregistrering

Først innsendt

24. juli 2026

Først innsendt som oppfylte QC-kriteriene

24. juli 2026

Først lagt ut (Faktiske)

29. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • 20260406-01H

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

produkt produsert i og eksportert fra USA

Ja

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