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QL1604 Monotherapy for dMMR or MSI-H Advanced Solid Tumors

A Single-arm, Multi-center, Phase Ⅱ Clinical Study to Evaluate Efficacy and Safety of QL1604 Monotherapy for the Treatment of Unresectable or Metastatic Mismatch Repair Deficient (dMMR) or Microsatellite Instability-high (MSI-H) Solid Tumors That Failed to Respond to Standard Therapy

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04326829
Enrollment
86
Registered
2020-03-30
Start date
2020-07-08
Completion date
2023-07-31
Last updated
2022-12-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Malignant Tumor

Brief summary

In this study, patients with previously-treated locally-advanced or metastatic mismatched repair deficient (dMMR) or microsatellite instability-high (MSI-H) colorectal carcinoma (CRC) and other solid tumors will be treated with QL1604 monotherapy.

Interventions

DRUGQL1604

QL1604, IV infusion

Sponsors

Qilu Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Volunteer to participate in this clinical study; completely understand and know this study as well as sign the informed consent form (ICF); 2. Age ≥ 18 years and ≤ 80 years when ICF is signed; 3. Histologically confirmed locally advanced or metastatic dMMR or MSI-H status colorectal carcinoma or other malignant solid tumors; 4. At least one measureable lesion as defined per RECIST Version (v) 1.1 ; 5. Subjects who have disease progression or intolerable reactions after the currently available standard anti-cancer treatment previously received or refused prior cancer therapy regimen(s) ; 6. Subjects must provide tumor tissues and blood samples for the determination of MSI, tumor mutational burden (TMB), PD-L1 expression level; 7. Eastern Cooperative Oncology Group performance status of 0 or 1; 8. Life expectancy of greater than 12 weeks; 9. Adequate hematologic and organ function; 10. Female subjects who are not pregnant or breastfeeding 11. Male and female subjects able to have children must agree to use highly effective method of contraception throughout the study and for at least 120 days after last dose.

Exclusion criteria

1. Known hypersensitivity to any monoclonal antibody, QL1604 and/or any of its excipients; 2. Subjects with known central nervous system (CNS) metastasis; 3. Active autoimmune disease that has required systemic treatment in past 2 years, replacement therapy is acceptable; 4. Subjects with major cardiovascular and cerebrovascular diseases; 5. Subjects with uncontrollable pleural effusion, pericardial effusion or ascites; 6. Any condition that required systemic treatment with either corticosteroids (\> 10 mg daily of prednisone or equivalent) or other immunosuppressive medication ≤ 14 days before the first dose of study drug; 7. Subjects who have received surgery, radiotherapy, chemotherapy, targeted therapy, other anti-tumor treatments, or participating in other clinical studies is less than 4 weeks before the first administration of investigational product; 8. Subjects who have not recovered to CTC AE Grade 1 or better from related side effects of any prior antineoplastic therapy; 9. Received a live vaccine within 30 days of planned start of study medication; 10. Infection with human immunodeficiency virus (HIV), HAV, HBV and HCV; 11. Prior therapy with an anti-programmed cell death (PD)-1, anti-PD-ligand 1 (anti-PD-L1), anti-PD-L2 agent, cytotoxic lymphocyte associated protein-4 (CTLA-4), OX-40, CD137; 12. Known psychiatric or substance abuse disorders that would interfere with the requirements of the study; 13. History or current evidence of any condition, therapy, or laboratory abnormality, that might confound the results of the trial, or interfere with the participant's participation for the full duration of the study, or investigators/sponsor consider the subjects are not suitable for this trial.

Design outcomes

Primary

MeasureTime frameDescription
ORRup to 2 yearsObjective response rate (assessed by independent radiological review committee (IRRC) per RECIST Version 1.1 and iRECIST)

Secondary

MeasureTime frameDescription
6-month PFS ratethe proportion of subjects who have time interval over 6 months between the first dose and disease progression or death6-month progression-free survival (PFS) rate
6-month OS ratefrom the date of first dose until the date of 6-month6-month overall survival rate
ORRup to 2 yearsObjective response rate (assessed by the investigators per RECIST Version 1.1 and iRECIST)
OSfrom the date of first dose until the date of death from any cause, assessed up to 2 yearsOverall survival
DORfrom the date when CR or PR (whichever recorded earlier) is firstly achieved until the date when disease progression or death is firstly recorded (whichever occurs earlier), assessed up to 2 yearsDuration of response
PFSfrom the first dose until firstly confirmed and recorded disease progression or death (whichever occurs earlier), assessed up to 2 yearsProgression-free survival (assessed by independent radiological review committee (IRRC) per RECIST v1.1 and iRECIS)

Countries

China

Contacts

Primary ContactShunjiang Yu, CMO
shunjiang.yu@qilu-pharma.com0531-83129659
Backup ContactWeijian Guo, Professor
021-64175590

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026