PD-L1 Inhibitor Rechallenge After PD-1 Immunotherapy for Patients With Solid Tumor Beyond Lung Cancer


Qingdao University

Status and phase

Not yet enrolling
Phase 2
Phase 1




Drug: PD-L1 inhibitor

Study type


Funder types




Details and patient eligibility


Anti-PD-L1 immune checkpoint inhibitor, is approved for the treatment of patients with unresectable, Stage III NSCLC whose disease has not progressed following concurrent platinum-based chemotherapy and radiation therapy, or as first-line treatment of patients with ES-SCLC in combination with etoposide and either carboplatin or cisplatin in China. The clinical data regarding the PD-L1 inhibitor in other solid tumors are limited.Investigators would observe and analyze the effectiveness and safety of PD-L1 inhibitor for patients with advanced - solid tumors beyond lung cancer after muti-line therapy to explore the synergistic effect of PD-L1 inhibitor rechallenge after PD-1immunotherapy.


30 estimated patients




18+ years old


No Healthy Volunteers

Inclusion criteria

  • Signed Informed Consent Form
  • Ability to comply with protocol
  • Aged ≥ 18 years
  • Histologically documented advanced solid tumor beyond lung cancer
  • Disease progression during or following at least one line treatment containing PD-1 immunotherapy.
  • Measurable disease, as defined by RECIST v1.1
  • ECOG performance status of 0 or 1
  • Life expectancy ≥ 12 weeks
  • Adequate hematologic and end organ function, defined by the following laboratory results obtained within 14 days prior to the first study treatment:

ANC ≥ 1.5 × 109/L (without granulocyte colony-stimulating factor support within 2 weeks of laboratory test used to determine eligibility) WBC counts > 2.5 × 109/L and < 15 × 109/L Lymphocyte count ≥ 0.5 × 109/L Serum albumin ≥ 2.5 g/dL Platelet count ≥ 100 × 109/L (without transfusion within 2 weeks of laboratory test used to determine eligibility) Hemoglobin ≥ 9.0 g/dL Patients may be transfused or receive erythropoietic treatment to meet this criterion.

Liver function tests meeting one of the following criteria:

AST or ALT ≤ 2.5 × upper limit of normal (ULN), with alkaline phosphatase

≤ 2.5 × ULN or AST and ALT ≤ 1.5 × ULN in conjunction with alkaline phosphatase > 2.5 × ULN Serum bilirubin ≤ 1.5 × ULN Patients with known Gilbert's disease who have serum bilirubin level ≤ 3 × ULN may be enrolled. INR and aPTT ≤ 1.5 × ULN This applies only to patients who are not receiving therapeutic anticoagulation; patients receiving therapeutic anticoagulation should be on a stable dose for at least 1 week prior to randomization. Creatinine clearance ≥ 30 mL/min Cockcroft-Gault, Chronic Kidney Disease Epidemiology Collaboration, or Modification of Diet in Renal Disease formulas may be used for creatinine clearance calculation. Note that 24-hour urine collection is not required but is allowed.

Exclusion criteria

  • Active or untreated CNS metastases as determined by computed tomography (CT) or magnetic resonance imaging (MRI) evaluation during screening and prior radiographic assessments
  • Leptomeningeal disease
  • Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures
  • Uncontrolled hypertension
  • Autoimmune disease
  • Had undergone a serious anaphylactic reaction in previous immunotherapy

Trial design

Primary purpose




Interventional model

Single Group Assignment


None (Open label)

30 participants in 1 patient group

PD-L1 rechallenge
Experimental group
Drug: PD-L1 inhibitor

Trial contacts and locations



Central trial contact

Xiaochun Zhang, Prof

Data sourced from clinicaltrials.gov

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