C-CAR168, an Autologous Anti-CD20/BCMA Chimeric Antigen Receptor T-Cell Therapy, in Participants With Systemic Sclerosis (SSc) Refractory to Standard Therapy
A Multi-center, Phase 1b Clinical Study of an Autologous Anti-CD20/BCMA Chimeric Antigen Receptor T-Cell Therapy (C-CAR168) for the Treatment of Systemic Sclerosis (SSc) Refractory to Standard Therapy
This Phase 1b, multicenter, open-label study will evaluate the safety and efficacy of a single infusion of autologous anti-CD20/BCMA chimeric antigen receptor T cells (C-CAR168) following lymphodepleting chemotherapy in participants with refractory Systemic Sclerosis (SSc) who are not responding to standard therapy. Approximately 6-12 participants will undergo leukapheresis, lymphodepletion with fludarabine and cyclophosphamide, and infusion of C-CAR168. Participants will be followed for 24 months (2 years) to evaluate safety, CAR T-cell persistence, pharmacokinetics/pharmacodynamics, biomarkers, and preliminary efficacy results. Long-term safety follow-up for gene therapy-related events will continue for up to 15 years following CAR T-cell infusion.
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Studietype
Studietype
Registrering (Antatt)
Registrering
Fase
Fase
- Fase 1
Kontakter og plasseringer
Studiekontakt
Studiekontakt
- Navn: Kirstin Liechty, Head of Clinical Operations, PhD
- Telefonnummer: 267-566-6081
- E-post: kirstin.liechty@abelzeta.com
Studer Kontakt Backup
- Navn: Yihong Liechty, Head of Clinical Operations, PhD
- Telefonnummer: 267-566-6081
- E-post: kirstin.liechty@abelzeta.com
Studiesteder
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Arizona
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Gilbert, Arizona, Forente stater, 85234
- Research Site
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Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Key Inclusion Criteria:
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Able to sign and date the Informed Consent Form (ICF).
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Female or male, aged 18-70 years (inclusive) with body weight ≥40 kg.
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Have a clinical diagnosis of diffuse cutaneous SSc according to the 2013 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification.
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Disease duration between the onset of the first non-Raynaud's sign/symptom and ICF signing shall be ≤ 6 years.
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SSc Disease Activity meet all following criteria:
- Modified Rodnan Skin Score (mRSS) ≥15.
- Chest High Resolution Computed Tomography (HRCT) shows SSc related ground-glass opacities.
- Percent predicted forced vital capacity (ppFVC)<70% or precent predicted (diffusing capacity of the lungs for carbon monoxide) ppDLco<70%.
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Positivity for at least one SSc-specific autoantibodies:
- anti-Scl70 antibody.
- anti-RNA polymerase III antibody.
- anti-centromere antibody.
- anti-Th/To antibody.
- and anti-U3RNP antibody.
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Refractory to at least two prior standard-of-care regimens, including immunosuppressives and/or a biologic note: "Refractory" is defined as receiving each listed drug for ≥6 months with either no response, disease progression after transient remission, or persistent disease progression on treatment.
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Ability to taper steroids to protocol allowed doses
Exclusion Criteria:
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ppFVC<45% or ppDLco <40%.
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Severe pulmonary arterial hypertension (PAH) as measured by screening echocardiogram (ECHO), or had documented mean positive airway pressure PAP (mPAP) > 45mmHg on recent right heart catheterization (RHC).
Note: RHC is not mandatory at screening, however participant with high-risk ECHO findings warrant close clinical vigilance, and participant with mPAP> 45mmHg at baseline shall not proceed with lymphodepletion.
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Presence of clinically significant abnormalities on chest high-resolution computed tomography (HRCT) that are UNRELATED to SSc.
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Cutaneous sclerosis that impedes venous access required for leukapheresis, lymphodepletion, C-CAR168 infusion, other study procedures and emergency rescue interventions.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
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Eksperimentell: C-CAR168
Participants will receive: • Leukapheresis • Fludarabine • Cyclophosphamide • Single intravenous infusion of C-CAR168 |
Autologous anti-CD20/BCMA chimeric antigen receptor T-cell therapy administered as a single intravenous infusion |
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Incidence and severity of treatment-emergent adverse events
Tidsramme: Through Month 24
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Incidence and severity of treatment-emergent adverse events, serious adverse events, dose-limiting toxicities, CRS, ICANS, adverse events of special interest, and treatment- or procedure-related adverse events. |
Through Month 24
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Proportion of Participants Achieving Response
Tidsramme: Through Month 24
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Proportion of participants achieving a response per the revised Composite Response Index for Systemic Sclerosis (r-CRISS) |
Through Month 24
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Pharmacokinetics of C-CAR168 Utilizing Flow Cytometry
Tidsramme: Through Month 24
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Characterize T-cell expansion and persistence utilizing flow cytometry |
Through Month 24
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Pharmacokinetics of C-CAR168 measured by quantitative polymerase chain reaction (qPCR)
Tidsramme: Through Month 24
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Characterize CAR T-cell expansion and persistence using qPCR |
Through Month 24
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Proportion of Participants Progressed
Tidsramme: Through Month 24
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Proportion of participants that progress meeting any of the protocol defined progression criteria |
Through Month 24
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Time to First Response
Tidsramme: Through Month 24
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Time to participant meeting first response as defined in the protocol |
Through Month 24
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Duration of Response (DOR)
Tidsramme: Through 24 months
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Time of response from first response until progression as defined in the protocol |
Through 24 months
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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Etterforskere
Etterforskere
- Studieleder: Yihong Yao, PhD, AbelZeta Inc.
Studierekorddatoer
Studer hoveddatoer
Studiestart (Antatt)
Studiestart
Primær fullføring (Antatt)
Primær fullføring
Studiet fullført (Antatt)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
Andre studie-ID-numre
- ABZT-413
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
IPD-planbeskrivelse
Individual participant data collected during this study will not be made available to other researchers.
Legemiddel- og utstyrsinformasjon, studiedokumenter
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Studerer et amerikansk FDA-regulert enhetsprodukt
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