A Prospective Study of Pembrolizumab Combining Chemotherapy in Advanced NSCLC Patients With EGFR Exon 21 Point Mutation.

Non Small Cell Lung Cancer Clinical Trial

Official title:

A Phase II Study of Pembrolizumab Plus Platinum and Pemetrexed as First Line Therapy in Advanced Non-squamous Non-small Cell Lung Cancer Patients With EGFR Exon 21 Point Mutation and Programmed Cell Death Ligand 1 Expression

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06142617
• Other study ID #: K4510
• Status: Not yet recruiting
• Phase: Phase 2
• Start date: December 1, 2023
• Est. completion date: June 30, 2028

Study information

• Verified date: October 2023
• Source: Peking Union Medical College Hospital
• Contact: Mengzhao Wang, MD
• Phone: +8613911235467
• Email: mengzhaowang[@]sina.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

A phase II, single-arm, open-label study evaluating efficacy, safety and feasibility of combined chemotherapy and pembrolizumab as first line therapy and Osimertinib as second line therapy in advanced non squamous NSCLC adult patients with epidermal growth factor receptor (EGFR) exon 21 point mutation and programmed cell death receptor ligand 1 (PD-L1) positive.

Description:

Four cycles of platinum and pemetrexed in combination with pembrolizumab will be administered as first line therapy and up to 31 cycles pemetrexed and pembrolizumab maintenance therapy every 3 weeks. Osimertinib will be the sequential treatment strategy at progression.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 37
• Est. completion date: June 30, 2028
• Est. primary completion date: November 30, 2027
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

1. Male or female, =18 years old

2. Primary non-squamous non-small cell lung cancer(NSCLC) with stage IV (AJCC stage,8th Edition) confirmed by cytology or histology

3. Patients who have not used any anti-tumor therapy drugs such as targeted drugs, chemotherapy or immunotherapy and patients after surgery are acceptable

4. EGFR exon 21 point mutation confirmed by gene test of tissue or blood and PD-L1 (22C3) TPS=1% confirmed by immunohistochemical method

5. At least one evaluable focus judged according to RECIST 1.1 standard

6. Eastern Cooperative Oncology Group performance score (PS) 0 or 1

7. Adequate blood function: absolute neutrophil count (ANC) = 2 × 109 / L, platelet count = 100 × 109 / L and hemoglobin 110 = 9 g / dl. Adequate renal function: serum creatinine = upper limit of normal value. Adequate liver function: total bilirubin = upper limit of normal value(ULN); Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) = upper limit of normal value (ULN); alkaline phosphatase = upper limit of normal value (ULN)

8. Life expectancy is not less than 6 months

9. Male participants: Male participants must take effective contraception and do not donate sperm during the study and 180 days at least after the last dose

10. Female participants can not be pregnant, breastfeeding, and meet at least one of the

following conditions:

1. non-fertile women or

2. agree to use effective contraception during treatment and 180 days at least after the last dose

3. Fertile women must perform a serum or urine pregnancy test within 72 hours before the first dose and the results must be negative (minimum sensitivity 25 IU/L or human chorionic gonadotropin (HCG) equivalent unit)

11. Sign the informed consent form (the informed consent form needs to be approved by the independent ethics committee, and the informed consent of the patient should be obtained before starting any substantive trial procedure)

Exclusion Criteria:

1. patients who have active autoimmune disease which needs systemic treatment like disease relievers, corticosteroids, or immunosuppressants) in the last 2 years e. Alternative therapies ( such as thyroxine, insulin, and physiologic corticosteroid replacement therapy of adrenal or pituitary function insufficiency) are permitted)

2. History of pneumonia (non-infectious)/interstitial lung disease which require s steroid treatment or a current pneumonia/interstitial lung disease

3. Previously diagnosed immunodeficiency diseases, such as immunoglobulin deficiency, aplastic anemia

4. Known history of human immunodeficiency virus (HIV) infection

5. Patients who have hepatitis B (defined as hepatitis B virus (HBV) DNA > 1000 copy number) and hepatitis C virus (HCV) (defined as HCV RNA (+) infection

6. Known history of active tuberculosis infection

7. Patients who received live or attenuated vaccine within 30 days prior to the first study intervention and inactivated vaccines are allowed.

8. Patients who have other known malignancies within the past 1 year and needs treatment. Basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ that has undergone potentially curative treatment, and bladder carcinoma in situ are not included.

9. Patients who have symptomatic central nervous system metastases and/or meningitis

10. History of hypersensitivity ( = Level 3) to pembrolizumab/pemetrexed/platinum/osimertinib and/or any of its excipients

11. Active infection that requires systemic treatment

12. Any medical condition that the investigator believes might do harm to the patient or not in the best interest of the patients such as poorly controlled diabetes, infection requiring treatment by injection, liver failure, mental illness or any disease, treatment, laboratory abnormality that might confuse the results or interfere with the participation of patients throughout the study.

13. Patients with mental illness or substance abuse which are confirmed to interfere with compliance with test requirements

14. Planed or currently pregnant or lactation during the study (from beginning of the screening visit to 180 days after the last dose of the experimental drug)

15. Patients who have undergone allogeneic tissue/solid organ transplantation

16. Patients who could not accept regular follow-up

17. Patients who are participating in or have used other investigational drugs or investigational equipment

Related Conditions & MeSH terms

• Carcinoma, Non-Small-Cell Lung
• Immune Checkpoint Inhibitor
• Lung Neoplasms
• Non Small Cell Lung Cancer

Intervention

Drug:
• Pembrolizumab, pemetrexed, platinum
Four cycles of platinum and pemetrexed in combination with pembrolizumab will be administered as first line therapy and up to 31 cycles pemetrexed and pembrolizumab maintenance therapy every 3 weeks.
• Osimertinib
Osimertinib will be the sequential treatment strategy at progression until resistance develops.

Locations

Country	Name	City	State
China	Peking Union Medical College Hospital	Peking

Sponsors (1)

Lead Sponsor	Collaborator
Peking Union Medical College Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Exploratory biomarker analysis	Blood samples will be collected from patients on three occasions: before treatment, at the time of disease progression on first-line therapy, and at the time of disease progression on second-line therapy. 15ml blood samples will be collected each time for PBMC assay. Tumor samples will be collected: 10 formalin-fixed, paraffin-embedded sections. Tumor samples will be subjected to genetic testing. Blood samples will be analyzed by flow cytometry.	before treatment, at the time of disease progression on first-line therapy, and at the time of disease progression on second-line therapy.
Primary	progression free survival 1 (PFS1)	the time length from enrollment to any of the following events: disease progression with first line therapy or death from any cause. Disease progression will be assessed according to RECIST 1.1	up to 8 weeks
Secondary	progression free survival 2 (PFS2)	the time length from enrollment to any of the following events: disease progression with Osimertinib or death from any cause. Disease progression will be assessed according to RECIST 1.1	up to 8weeks
Secondary	Incidence of adverse events graded according to National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 5.0	Evaluate adverse events of any cause, treatment-related adverse events, immune-mediated adverse events according to NCI-CTCAE V5.0	up to 8 weeks
Secondary	objective response rate (ORR)	Proportion of patients with Complete and Partial Responses to first-line therapy.	up to 8 weeks
Secondary	Life quality score	Evaluate life quality score according to Karnofsky performance status (KPS). On a scale of 10, higher scores indicate better health. A score of 0 is defined as death, on a 100-point scale, indicating normal physical fitness with no obvious symptoms and signs.	up to 8 weeks