Diclofenac for the Treatment of Patients With Metastatic Non-small Cell Lung Cancer on Single Agent Immunotherapy

NCT ID: NCT06731270

Last Updated: 2025-06-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-09

Study Completion Date

2027-01-01

Brief Summary

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This phase II trial tests how well diclofenac works in treating patients non-small cell lung cancer (NSCLC) that may have spread from where it first started (primary site) to other places in the body (metastatic) on single agent immunotherapy. Diclofenac, a type of non-steroidal anti-inflammatory (NSAID), blocks the body's production of a substance that causes inflammation and may decrease tumor growth and improve the effectiveness of immunotherapy. Immunotherapy with pembrolizumab, atezolizumab, nivolumab or cemiplimab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Giving diclofenac may kill more tumor cells in patients with metastatic NSCLC on single agent immunotherapy.

Detailed Description

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PRIMARY OBJECTIVE:

I. To evaluate the clinical benefit rate of concomitant diclofenac potassium (diclofenac) and single agent checkpoint blockade.

SECONDARY OBJECTIVES:

I. To evaluate the safety and tolerability of concomitant diclofenac and single agent checkpoint blockade.

II. To evaluate the efficacy of concomitant diclofenac and single agent checkpoint blockade in NSCLC.

EXPLORATORY OBJECTIVES:

I. To evaluate the change in immunophenotype in circulating CD8 T cells following initiation of diclofenac oral therapy in patients who show early sings of progression on single agent immunotherapy for advanced lung cancer.

II. To investigate the role of PD-L1 expression status in response to the addition of diclofenac daily oral therapy in patients who show early sings of progression on single agent immunotherapy for advanced lung cancer.

III. To evaluate the role of serum lactic acid levels in determining dose exposure to diclofenac.

IV. To evaluate the change in circulating immune parameters (CD4 T cells and B cells) with the addition of diclofenac to single agent immunotherapy.

V. To evaluate the role of the tumor microenvironment at the time of diagnosis on efficacy.

OUTLINE:

Patients receive diclofenac orally (PO) twice daily (BID) and standard of care immunotherapy with pembrolizumab, atezolizumab, nivolumab or cemiplimab on day 1 of each cycle. Cycles repeat every 21 or 28 days in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo blood sample collection and computed tomography (CT), positron emission tomography (PET), or magnetic resonance imaging (MRI) on study.

After completion of study treatment, patients are followed up every 12 weeks for up to 1 year.

Conditions

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Advanced Lung Non-Small Cell Carcinoma Metastatic Lung Non-Small Cell Carcinoma Stage III Lung Cancer AJCC v8 Stage IV Lung Cancer AJCC v8

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment (diclofenac, immunotherapy)

Patients receive diclofenac PO BID and standard of care immunotherapy with pembrolizumab, atezolizumab, nivolumab or cemiplimab on day 1 of each cycle. Cycles repeat every 21 or 28 days in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo blood sample collection and CT, PET, or MRI on study.

Group Type EXPERIMENTAL

Atezolizumab

Intervention Type BIOLOGICAL

Given atezolizumab

Biospecimen Collection

Intervention Type PROCEDURE

Undergo blood sample collection

Cemiplimab

Intervention Type BIOLOGICAL

Given cemiplimab

Computed Tomography

Intervention Type PROCEDURE

Undergo CT

Diclofenac Potassium

Intervention Type DRUG

Given PO

Electronic Health Record Review

Intervention Type OTHER

Ancillary studies

Magnetic Resonance Imaging

Intervention Type PROCEDURE

Undergo MRI

Nivolumab

Intervention Type BIOLOGICAL

Given nivolumab

Pembrolizumab

Intervention Type BIOLOGICAL

Given pembrolizumab

Positron Emission Tomography

Intervention Type PROCEDURE

Undergo PET

Interventions

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Atezolizumab

Given atezolizumab

Intervention Type BIOLOGICAL

Biospecimen Collection

Undergo blood sample collection

Intervention Type PROCEDURE

Cemiplimab

Given cemiplimab

Intervention Type BIOLOGICAL

Computed Tomography

Undergo CT

Intervention Type PROCEDURE

Diclofenac Potassium

Given PO

Intervention Type DRUG

Electronic Health Record Review

Ancillary studies

Intervention Type OTHER

Magnetic Resonance Imaging

Undergo MRI

Intervention Type PROCEDURE

Nivolumab

Given nivolumab

Intervention Type BIOLOGICAL

Pembrolizumab

Given pembrolizumab

Intervention Type BIOLOGICAL

Positron Emission Tomography

Undergo PET

Intervention Type PROCEDURE

Other Intervention Names

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MPDL 3280A MPDL 328OA MPDL-3280A MPDL3280A MPDL328OA RG 7446 RG-7446 RG7446 RO 5541267 RO-5541267 RO5541267 Tecentriq Biological Sample Collection Biospecimen Collected Specimen Collection Cemiplimab RWLC Cemiplimab-rwlc Libtayo REGN 2810 REGN-2810 REGN2810 CAT CAT Scan Computed Axial Tomography Computerized Axial Tomography Computerized axial tomography (procedure) Computerized Tomography Computerized Tomography (CT) scan CT CT Scan tomography Cambia Cataflam CGP 45840B Zipsor Magnetic Resonance Magnetic Resonance Imaging (MRI) Magnetic resonance imaging (procedure) Magnetic Resonance Imaging Scan Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance MR MR Imaging MRI MRI Scan MRIs NMR Imaging NMRI Nuclear Magnetic Resonance Imaging sMRI Structural MRI ABP 206 BCD-263 BMS 936558 BMS-936558 BMS936558 CMAB819 MDX 1106 MDX-1106 MDX1106 NIVO Nivolumab Biosimilar ABP 206 Nivolumab Biosimilar BCD-263 Nivolumab Biosimilar CMAB819 ONO 4538 ONO-4538 ONO4538 Opdivo BCD-201 GME 751 GME751 Keytruda Lambrolizumab MK 3475 MK-3475 MK3475 Pembrolizumab Biosimilar BCD-201 Pembrolizumab Biosimilar GME751 Pembrolizumab Biosimilar QL2107 QL2107 SCH 900475 SCH-900475 SCH900475 Medical Imaging, Positron Emission Tomography PET PET Scan Positron emission tomography (procedure) Positron Emission Tomography Scan Positron-Emission Tomography proton magnetic resonance spectroscopic imaging PT

Eligibility Criteria

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Inclusion Criteria

* Capable of signing informed consent
* Age ≥ 18 years at time of study entry
* Stage III or IV pathologically proven NSCLC with advanced or metastatic disease, currently on treatment with an Food and Drug Administration (FDA) approved single agent monoclonal antibody inhibiting the PD(L)-1 pathway (pembrolizumab, atezolizumab, nivolumab, or cemiplimab) for a minimum of 12 weeks

* May include frontline single agent immune checkpoint inhibitors (ICI), maintenance single agent ICI after chemo-ICI, or subsequent line therapy
* Radiographic evidence of clinical progression as determined by the treating physician, not warranting immediate change of therapy. Progressive disease by Response Evaluation Criteria in Solid Tumors (RECIST) criteria is not required. This can include mixed response, will need at least one growing lesion. Exposure to PD1 inhibitor for at least 12 weeks will minimize the risk of pseudo-progression
* Eastern Cooperative Oncology Group (ECOG) performance status 0-2
* Life expectancy of ≥ 26 weeks
* Absolute neutrophil count (ANC) ≥ 1,000 cell/mm\^3
* Platelets ≥ 100,000 cells/mm\^3
* Hemoglobin ≥ 8 gm/dL
* Creatinine clearance ≥ 45 ml/ml
* Bilirubin ≤ 1.5 x institutional upper limit of normal

* Bilirubin must be ≤ 3 x institutional upper limit of normal in patients with documented Gilbert's syndrome
* Serum glutamic oxaloacetic transaminase (SGOT) / serum gluatmic pyruvic transaminase (SGPT) ≤ 2.5 x institutional upper limit of normal
* Ability to take oral medications
* Willingness and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up

Exclusion Criteria

* Concurrent enrollment in another clinical study, unless it is non-therapeutic
* Prophylactic or therapeutic anticoagulation therapy including but not limited to: warfarin, heparin, low molecular weight heparin, or direct oral anticoagulants, including: dabigatran (Pradaxa), rivaroxaban (Xarelto), apixaban (Eliquis), edoxaban (Savaysa), and betrixaban (Bevyxxa)
* Treatment within the previous 6 weeks or planned initiation of bevacizumab
* Abnormal markers of coagulation as measured by international normalized ratio (INR) \> 2
* Contraindication for NSAID therapy including: chronic aspirin therapy for coronary artery disease (CAD), cerebrovascular accident (CVA), or other indication, uncontrolled gastrointestinal ulcerative disease, known bleeding diathesis, known allergy or hypersensitivity to NSAIDS, advanced renal disease, uncontrolled hypertension, known seizure disorder or others
* Female of childbearing potential unwilling or unable to use 2 methods of contraception, detailed in protocol
* Uncontrolled intercurrent illness
* History of another primary malignancy with exceptions noted in protocol
* History of active primary immunodeficiency or active infection including tuberculosis, hepatitis B, hepatitis C
* Current or prior use of immunosuppressive medication within 14 days before the first dose of diclofenac. There are exceptions to this criterion
* Receipt of live attenuated vaccine within 30 days prior to the first dose of study medications
* Judgment by the investigator that the patient is unsuitable to participate in the study and the patient is unlikely to comply with study procedures, restrictions and requirements
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Emory University

OTHER

Sponsor Role lead

Responsible Party

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Jennifer Carlisle

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jennifer W Carlisle

Role: PRINCIPAL_INVESTIGATOR

Emory University Hospital/Winship Cancer Institute

Locations

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Emory University Hospital Midtown

Atlanta, Georgia, United States

Site Status RECRUITING

Emory University Hospital/Winship Cancer Institute

Atlanta, Georgia, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Kajona McCall

Role: CONTACT

404-778-5087

Facility Contacts

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Jennifer W Carlisle

Role: primary

404-778-2304

Jennifer W. Carlisle

Role: primary

404-778-2304

Other Identifiers

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NCI-2024-07760

Identifier Type: REGISTRY

Identifier Source: secondary_id

STUDY00006572

Identifier Type: OTHER

Identifier Source: secondary_id

Winship6018-23

Identifier Type: OTHER

Identifier Source: secondary_id

P30CA138292

Identifier Type: NIH

Identifier Source: secondary_id

View Link

STUDY00006572

Identifier Type: -

Identifier Source: org_study_id

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