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Phase Ia/Ib Study of FXB0871 Monotherapy in Locally Advanced/Metastatic Solid Tumors

23 aprile 2026 aggiornato da: Shanghai Fosun Pharmaceutical Industrial Development Co. Ltd.

A Phase 1a/1b Open-Label, Multicenter, Dose Escalation, and Dose Expansion Trial to Evaluate the Safety, Anti-tumor Activity, Pharmacokinetic/Pharmacodynamic Characteristics of FXB0871 as Monotherapy in Participants With Selected Locally Advanced or Metastatic Solid Tumors

This is a phase 1a/1b, open-label, multicenter, dose-escalation and dose-expansion study evaluating the safety, tolerability, antitumor activity, pharmacokinetics, and pharmacodynamics of FXB0871 monotherapy in adults with selected locally advanced or metastatic solid tumors. In Part Ia, participants with selected solid tumors that have progressed after, are intolerant to, or are not suitable for standard therapy will receive FXB0871 in dose-escalation cohorts to determine the maximum tolerated dose and/or recommended phase 2 dose. In Part Ib, participants with PD-(L)1-resistant non-small cell lung cancer or hepatocellular carcinoma will receive FXB0871 in dose-expansion cohorts to further evaluate antitumor activity, safety, and dose optimization.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

This first-in-human study consists of a dose-escalation part (Part Ia) and a dose-expansion part (Part Ib). In Part Ia, adults with selected locally advanced or metastatic solid tumors will receive FXB0871 monotherapy by intravenous infusion every 2 weeks in sequential pre-determinde dose cohorts using a Bayesian optimal interval design. The planned dosing schedule is every 2 weeks, with a dose-limiting toxicity observation period of the first 2 treatment cycles. Additional intermediate dose levels, cohort expansion, and schedule optimization to every 3 or 4 weeks may be allowed according to protocol-defined safety, PK/PD, and preliminary antitumor activity data.

Part Ib will start after determination of the monotherapy recommended phase 2 dose (RP2D). Cohort A will enroll participants with PD-(L)1-resistant locally advanced or metastatic non-small cell lung cancer and randomize them 1:1 to receive FXB0871 at the RP2D or at a lower dose selected on the basis of Part Ia data. Cohort B will enroll participants with PD-(L)1-resistant locally advanced or metastatic hepatocellular carcinoma to receive FXB0871 at the RP2D. Participants may continue study treatment for up to 12 months or until unacceptable toxicity, disease progression, or another protocol-defined discontinuation criterion is met.

Tipo di studio

Interventistico

Iscrizione (Stimato)

138

Fase

  • Fase 1

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

  • Cina
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Cina, 200000
        • Shanghai East Hospital
        • Contatto:
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Signed informed consent.
  • Age ≥18 years.
  • Histologically confirmed selected locally advanced or metastatic solid tumor with progression on, intolerance to, or no suitable standard therapy.
  • ECOG performance status 0 or 1.
  • At least one measurable lesion per RECIST v1.1.
  • Pretreatment tumor tissue available (archival or fresh biopsy).
  • Life expectancy ≥12 weeks.
  • Oxygen saturation ≥92% on room air.
  • Left ventricular ejection fraction >50%.
  • Adequate hematologic, coagulation, renal, hepatic, and cardiac function.
  • Women of childbearing potential and sexually active men must use highly effective contraception.
  • Tumor-specific eligibility applies, including prior anti-PD-(L)1 treatment failure for the selected cohorts.

Key Exclusion Criteria:

  • Systemic anti-cancer therapy, major surgery, or radical radiotherapy within 4 weeks before first dose.
  • Prior treatment with IL-2, IL-15, or IL-7.
  • Active autoimmune disease requiring systemic treatment or immunodeficiency.
  • Systemic corticosteroids (≥10 mg/day prednisone equivalent) or other immunosuppressive therapy within 28 days before first dose, with limited protocol-defined exceptions.
  • Active or untreated central nervous system metastases, carcinomatous meningitis, or leptomeningeal disease.
  • Uncontrolled infection or clinically significant unresolved toxicities from prior therapy.
  • Clinically significant cardiovascular/cerebrovascular disease, uncontrolled effusions/ascites, uncontrolled hypertension, or QTcF >470 ms.
  • Active hepatitis B/C, syphilis, or HIV infection.
  • Clinically significant interstitial lung disease or active noninfectious pneumonitis.
  • Pregnancy or breastfeeding.
  • Any other serious medical or psychiatric condition that, in the investigator's judgment, would make participation inappropriate.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Arm1：Part Ia Dose Escalation
Participants with selected locally advanced or metastatic solid tumors will receive FXB0871 monotherapy by intravenous infusion every 2 weeks in sequential pre-determined dose-escalation cohorts or at intermediate dose levels every 2 weeks
Biologico: Intervention1：FXB0871
FXB0871 is administered by intravenous infusion at pre-determined dose level in Part Ia every 2 weeks. Treatment may continue for up to 12 months or until unacceptable toxicity, disease progression, or another protocol-defined discontinuation criterion is met.
Altri nomi:
  • TEV-56278
Sperimentale: Arm2：Part Ib Dose Expansion (NSCLC, RP2D)
Participants with locally advanced or metastatic IO-resistant NSCLC will be randomized 1:1 to receive FXB0871 monotherapy at RP2D from Phase Ia by intravenous infusion every 2 weeks
Biologico: Intervention2：FXB0871
FXB0871 is administered by intravenous infusion at pre-determined dose level in Phase Ib every 2 weeks. Treatment may continue for up to 12 months or until unacceptable toxicity, disease progression, or another protocol-defined discontinuation criterion is met.
Altri nomi:
  • TEV-56278
Sperimentale: Arm3：Part Ib Dose Expansion(NSCLC, <RP2D)
Participants with locally advanced or metastatic IO-resistant NSCLC will be randomized 1:1 to receive FXB0871 monotherapy at a selected lower dose than RP2D from Phase Ia by intravenous infusion every 2 weeks
Biologico: Intervention3：FXB0871
FXB0871 is administered by intravenous infusion at pre-determined dose level in Phase Ib every 2 weeks. Treatment may continue for up to 12 months or until unacceptable toxicity, disease progression, or another protocol-defined discontinuation criterion is met.
Altri nomi:
  • TEV-56278
Sperimentale: Arm4：Part Ib Dose Expansion(HCC, RP2D)
Participants with locally advanced or metastatic IO-resistant HCC will receive FXB0871 monotherapy at RP2D from Phase Ia by intravenous infusion every 2 weeks
Biologico: Intervention4：FXB0871
FXB0871 is administered by intravenous infusion at pre-determined dose level in Phase Ib every 2 weeks. Treatment may continue for up to 12 months or until unacceptable toxicity, disease progression, or another protocol-defined discontinuation criterion is met.
Altri nomi:
  • TEV-56278

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Incidence and severity of dose-limiting toxicities (DLTs) in Phase Ia
Lasso di tempo: First 2 cycles after first dose (each cycle = 14 days; approximately 28 days).
Percentage of participants with protocol-defined DLTs during the DLT observation period in the dose-escalation phase
First 2 cycles after first dose (each cycle = 14 days; approximately 28 days).
Incidence and severity of adverse events (AEs), serious adverse events (SAEs), AEs leading to dose delay/interruption/reduction/treatment discontinuation in Phase Ia
Lasso di tempo: From first dose through 90 days after last dose or initiation of new anti-tumor therapy, whichever occurs first
Safety assessed by the incidence of treatment-emergent adverse events, serious adverse events, AEs leading to dose delay/interruption/reduction/treatment discontinuation in Phase Ia.
From first dose through 90 days after last dose or initiation of new anti-tumor therapy, whichever occurs first
Objective response rate (ORR) in Phase Ib
Lasso di tempo: From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study (assessed every 8±1 weeks; approximately up to 24 months).
ORR defined as the proportion of participants with a best overall response of complete response (CR) or partial response (PR) per RECIST v1.1 in Phase Ib.
From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study (assessed every 8±1 weeks; approximately up to 24 months).

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Objective response rate (ORR) in Phase Ia
Lasso di tempo: From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Objective response rate (ORR), defined as the proportion of participants with a best overall response of complete response (CR) or partial response (PR), as assessed per RECIST v1.1 in Phase Ia.
From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Disease control rate (DCR) in Phase Ia
Lasso di tempo: From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Disease control rate (DCR), defined as the proportion of participants with a best overall response of CR, PR, or stable disease (SD), as assessed per RECIST v1.1 in Phase Ia.
From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Duration of response (DOR) in Phase Ia
Lasso di tempo: From first documented CR or PR until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Duration of response (DOR), defined for participants with confirmed CR or PR as the time from first documented response to first documented disease progression or death from any cause, whichever occurs first, as assessed per RECIST v1.1 in Phase Ia.
From first documented CR or PR until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Progression-free survival (PFS) in Phase Ia
Lasso di tempo: From first dose until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Progression-free survival (PFS), defined as the time from first dose to first documented disease progression or death from any cause, whichever occurs first, as assessed per RECIST v1.1 in Phase Ia.
From first dose until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Peak serum concentration (Cmax)
Lasso di tempo: Predose up to Day 8
Maximum observed concentration
Predose up to Day 8
Time to maximum observed concentration (Tmax)
Lasso di tempo: Predose up to Day 8
Time to maximum observed drug concentration
Predose up to Day 8
Area under the serum concentration-time curve (AUC0-last)
Lasso di tempo: Predose up to Day 8
Area under the serum concentration-time curve from time 0 to last measurable drug concentration
Predose up to Day 8
Area under the serum concentration-time curve (AUC0-∞)
Lasso di tempo: Predose up to Day 8
Area under the concentration-time curve from time zero (pre-dose) extrapolation to infinite time
Predose up to Day 8
Area under the serum concentration-time curve (AUCtau)
Lasso di tempo: Predose up to Day 8
Area under the concentration-time curve over the dosing interval
Predose up to Day 8
Trough concentration (Ctrough)
Lasso di tempo: up to Day 8
Observed concentration at the end of a dosing interval, immediately before next administration
up to Day 8
Clearance (CL)
Lasso di tempo: Predose up to Day 8
Systemic (total body) clearance following iv administration
Predose up to Day 8
Volume of distribution (Vz)
Lasso di tempo: Predose up to Day 8
Volume of distribution following iv administration
Predose up to Day 8
Half-life (t1/2)
Lasso di tempo: Predose up to Day 8
Terminal phase half-life
Predose up to Day 8
Average concentration (Cavg)
Lasso di tempo: Predose up to Day 8
Average concentration over a dosing interval
Predose up to Day 8
Accumulation ratio (Rac)
Lasso di tempo: Predose up to Day 8
Accumulation ratio
Predose up to Day 8
Incidence and severity of AEs/SAEs and AEs leading to dose modification or discontinuation in Phase Ib
Lasso di tempo: From first dose through 90 days after last dose or initiation of new anti-tumor therapy, whichever occurs first.
Safety and tolerability in the dose-expansion phase.
From first dose through 90 days after last dose or initiation of new anti-tumor therapy, whichever occurs first.
ORR by modified RECIST (mRECIST) in the HCC cohort of Phase Ib
Lasso di tempo: From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study (assessed every 8±1 weeks; approximately up to 24 months).
ORR in participants with hepatocellular carcinoma assessed by mRECIST.
From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study (assessed every 8±1 weeks; approximately up to 24 months).
Disease control rate (DCR) in Phase Ib
Lasso di tempo: From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Disease control rate (DCR), defined as the proportion of participants with a best overall response of CR, PR, or SD, as assessed per RECIST v1.1 in Phase Ib.
From first dose until disease progression, start of new anti-tumor therapy, withdrawal, death, or end of study, whichever occurs first (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Time to response (TTR) in Phase Ib
Lasso di tempo: From first dose to first documented CR or PR (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Time to response (TTR), defined as the time from first dose to the first documented CR or PR, as assessed per RECIST v1.1 in Phase Ib.
From first dose to first documented CR or PR (tumor assessments every 8 ± 1 weeks; approximately up to 24 months).
Duration of response (DOR) in Phase Ib
Lasso di tempo: From first documented CR or PR until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Duration of response (DOR), defined for participants with confirmed CR or PR as the time from first documented response to first documented disease progression or death from any cause, whichever occurs first, as assessed per RECIST v1.1 in Phase Ib.
From first documented CR or PR until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Title:Progression-free survival (PFS) in Phase Ib
Lasso di tempo: From first dose until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Progression-free survival (PFS), defined as the time from first dose to first documented disease progression or death from any cause, whichever occurs first, as assessed per RECIST v1.1 in Phase Ib.
From first dose until first documented disease progression or death from any cause, whichever occurs first (approximately up to 24 months).
Overall survival (OS) in Phase Ib
Lasso di tempo: From first dose until death from any cause (approximately up to 24 months).
Overall survival measured from first dose to death from any cause.
From first dose until death from any cause (approximately up to 24 months).

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Shanghai Fosun Pharmaceutical Industrial Development Co. Ltd.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

15 maggio 2026

Completamento primario (Stimato)

23 aprile 2030

Completamento dello studio (Stimato)

18 novembre 2030

Date di iscrizione allo studio

Primo inviato

7 aprile 2026

Primo inviato che soddisfa i criteri di controllo qualità

23 aprile 2026

Primo Inserito (Effettivo)

30 aprile 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

30 aprile 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

23 aprile 2026

Ultimo verificato

1 aprile 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • FXB0871-I101

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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