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A Phase Ia/Ib Study of IBI315 in Patients With HER2-expressing Advanced Solid Tumor

Phase 1
Completed
Conditions
Advanced Solid Tumor
Interventions
Registration Number
NCT04162327
Lead Sponsor
Innovent Biologics (Suzhou) Co. Ltd.
Brief Summary

The primary objective of this phase I study is to evaluate the safety and potential efficacy and to determine the recommended phase 2 dose (RP2D) of IBI315, a HER2/PD-1 bi-specific antibody in patients with advanced solid tumors

Detailed Description

This phase Ia/Ib, open-label, multicenter study has two stages. The Ia stage is a dose-escalation study that will focus on safety, tolerability, efficacy and RP2D . Patients with HER2-expressing advanced solid tumor who failed from previous standard of care will be enrolled in the phase Ia study. DLT observation period is 28 days.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
55
Inclusion Criteria
  • Written (signed) informed consent.

  • Life expectancy ≥12 weeks.

  • Patients with HER2-expressing advanced solid tumor who failed on current standard of care

  • According to RECIST 1.1, at least one measurable lesion (radiation-naïve) exists.

  • ECOG performance status 0-1.

  • Adequate organ and marrow function evaluated by laboratory tests as follow:

    • CBC: absolute neutrophil count (ANC) ≥ 1.0×109/L (Ia stage) or 1.5×109/L (Ib stage); Platelet (PLT) ≥ 75×109/L; Hemoglobin (HGB) ≥ 9.0g/L;
    • Liver function: Total bilirubin (TBIL) ≤ 1.5×upper limit of normal value (ULN) for patients without hepatic metastases, ≤ 2×ULN for patients with hepatic metastases or Gilbert syndrome; Alanine aminotransferase (ALT) ≤ 2.5×ULN; Aspartate transferase (AST) ≤ 2.5×ULN;
    • Renal function: Clearance of creatinine (CCr) by Cockcroft-Gault formula or 24-hour urine collection ≥ 50ml/min;
    • Urinalysis: urine protein < 2+ or urine protein in 24-hour urine collection < 1g;
    • Coagulation function: activated partial thromboplastin time (APTT)≤ 1.5×ULN; international normalized ratio (INR)≤ 1.5
  • left ventricular ejection fraction (LVEF) ≥ 50% by echocardiography;

  • Accumulative exposure to doxorubicin ≤ 360mg/m2; accumulative exposure to epirubicin ≤ 720mg/m2;

  • Agree to use an approved contraceptive method during the treatment period, until 180 days after last dose of treatment.

  • Post-menopause female subject or pre-menopause female with negative HCG level in urine or blood.

Exclusion Criteria
  • Any greater than NCI CTCAE 0/1 adverse event exists within 4 weeks before enrollment, not including hair loss and fatigue;
  • Received major surgery or having unhealed wound, ulcer, or bone fracture;• Received whole pelvic radiation;
  • Plan to receive any other anti-cancer therapy not specified in the protocol, except for palliative radiotherapy;
  • CNS metastasis, spinal compression, or carcinomatous meningitis
  • Active autoimmune disease or inflammatory disorders.
  • Primary immunodeficiency diseases;
  • Pregnant or breast-feeding female.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Ia stage - IBI315 Dose escalationIBI315-
Ib stage - IBI315 monotherapyIBI315-
Primary Outcome Measures
NameTimeMethod
Area under the plasma concentration-time curve (AUC)up to 9 months
Maximum plasma concentration (Cmax)up to 9 months
Terminal elimination half-life (T1/2)up to 9 months
Apparent volume of distribution (Vd)up to 9 months
Secondary Outcome Measures
NameTimeMethod
Evaluate receptor occupancy (RO) following single-dose or multi-dose of IBI315up to 9 months
The percentage of participants with anti-drug antibody (ADA) positive after dosing IBI315up to 9 months
The percentage of participants with neutralizing antibody (NAb) positive after dosing IBI315up to 9 months

Trial Locations

Locations (1)

The 307th Hospital of Chinese People's Liberation Army

🇨🇳

Beijing, China

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