Safety and Efficacy of Combination Osimertinib and Ipilimumab in Patients w EGFR Mutated NSCLC (Osi+Ipi)

May 15, 2026 updated by: University of Utah

A Phase Ib Study to Evaluate the Safety and Efficacy of Osimertinib in Combination With Ipilimumab in Patients With EGFR Mutated Non-Small-Cell Lung Cancer Tumors

This is a prospective, open label, interventional trial beginning with a phase 1b safety run-in followed by an expansion cohort.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

The primary objective is to assess the short and long term tolerability of ipilimumab in combination with osimertinib. The secondary objective is to assess efficacy of osimertinib in combination with ipilimumab. Ipilimumab will be given for a total of four doses and osimertinib will be given until treatment discontinuation criteria is met. Ipilimumab at the assigned dose level every 3 weeks for four doses in combination with once daily osimertinib.

Study Type

Interventional

Enrollment (Actual)

24

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Utah
      • Salt Lake City, Utah, United States, 84112
        • Huntsman Cancer Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Male or female subject aged ≥ 18 years.
  • Histologically or cytologically confirmed metastatic, non-small cell lung cancer (NSCLC).
  • The presence of any sensitizing epidermal growth factor receptor (EGFR) tumor mutation.
  • Currently on a stable dose of osimertinib (40 mg or 80 mg daily) ≥ 28 days without clinical disease progression.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 2.

  • Adequate organ function as defined as:

    • Hematologic:

      • White blood cell count > 2.0 k/microliter (uL)
      • Platelet count > 75,000/mm3
      • Hemoglobin ≥ 9 g/dL
      • Absolute neutrophil count (ANC) ≥ 1,000/mm3

    • Hepatic:

      • Total Bilirubin ≤ 1.5 x institutional upper limit of normal (ULN)

        ---Except for patient with Gilbert's syndrome.

      • Aspartate aminotransferase (AST)(SGOT)/Alanine aminotransferase (ALT)(SGPT) ≤ 2.5 × institutional ULN

    • Renal:

      • eGFR ≥ 30 mL/min/1.73m2 or creatinine clearance ≥ 30 mL/min by Cockcroft-Gault:

        • Males: ((140-age)×weight[kg])/(serum creatinine [mg/dL]×72)
        • Females: (((140-age)×weight[kg])/(serum creatinine [mg/dL]×72))×0.85
  • Concurrent enrollment in the study, "Rethinking Measurement of Performance Status in Cancer Patients," Institutional Review Board (IRB) # 112529.

  • Evidence of post-menopausal status or negative urinary or serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:

    • Women <50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy).
    • Women ≥50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses >1 year ago, had chemotherapy-induced menopause with last menses >1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).
  • Highly effective contraception for both male and female subjects throughout the study and for at least 5 months after the last dose of study therapy for females and 7 months after the last dose for males if the risk of conception exists.
  • Recovery to baseline or ≤ Grade 1 CTCAE v.5 from toxicities related to any prior treatments, unless AE(s) are clinically non-significant and/or stable on supportive therapy.
  • Able to provide informed consent and willing to sign an approved consent form that conforms to federal and institutional guidelines.

Exclusion Criteria:

  • Prior EGFR targeted therapy.
  • Prior radiation therapy within 2 weeks prior to cycle one day one.
  • Active or prior autoimmune disease that might deteriorate when receiving an immunostimulatory agent. Patients with diabetes type I, vitiligo, psoriasis, or hypo-or hyperthyroid disease not requiring immunosuppressive treatment are eligible.

  • Known history of:

    • Immune-mediated colitis, inflammatory bowel disease, or interstitial lung disease/pneumonitis.
    • Intra-abdominal abscess, GI obstruction and abdominal carcinomatosis which are known risk factors for bowel perforation.

  • Current use of immunosuppressive medication at the time of study enrollment, EXCEPT for the following permitted steroids:

    • Intranasal, inhaled, topical steroids, eye drops or local steroid injection (eg,intra-articular injection);
    • Systemic corticosteroids at physiologic doses ≤ 10mg/day of prednisone or equivalent;
    • Steroids as premedication for hypersensitivity reactions (e.g., computed tomography (CT) scan premedication).
  • Diagnosis of any other malignancy within 2 years prior to study enrollment, except for adequately treated basal cell or squamous cell skin cancer, carcinoma in situ of the breast, bladder or of the cervix, and low-grade (Gleason 6 or below) prostate cancer on surveillance with no plans for treatment intervention (e.g., surgery, radiation, or castration) or prostate cancer that has been adequately treated with prostatectomy or radiotherapy and currently with no evidence of disease or symptoms is allowed.

  • Uncontrolled central nervous system (CNS) metastases are not allowed; subjects with previously treated brain metastases will be allowed if the brain metastases have been treated, toxicities have resolved to grade 1 or baseline and steroids are no longer required. Leptomeningeal metastases are not allowed.

    • Patients with asymptomatic brain metastasis are allowed if previous steroid treatment was discontinued ≥ 6 weeks.
    • Patients with stable brain metastases on osimertinib therapy are eligible.
    • Palliative radiation therapy is allowed while on study therapy (see Section 6.4).

  • The subject has uncontrolled, significant intercurrent or recent illness including, but not limited to, the following conditions:

    • Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better.
    • Myocardial infarction, severe angina, or unstable angina within 6 months prior to administration of first dose of study drug.
    • Uncontrolled symptomatic hypertension that cannot be controlled with anti-hypertensive agents.
    • History of serious ventricular arrhythmia (i.e., ventricular tachycardia or ventricular fibrillation).
    • Cardiac arrhythmias requiring anti-arrhythmic medications (except for atrial fibrillation that is well controlled with anti-arrhythmic medication).
    • Coronary or peripheral artery bypass graft within 6 months of screening.
    • Corrected QT interval (QTc) prolongation > 500 msec.
    • Active, clinically symptomatic left ventricular failure (left ventricle ejection fraction (LVEF) < 50%).
    • Other clinically significant disorders that would preclude safe study participation.

  • Known HIV infection with a detectable viral load within 6 months of the anticipated start of treatment.

    -Note: Patients on effective anti-retroviral therapy with an undetectable viral load within 6 months of the anticipated start of treatment are eligible for this trial.

  • Known chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection with a detectable viral load.

    -Note: Patients with an undetectable HBV viral load on appropriate suppressive therapy are eligible. Patients with an undetectable HCV viral load on appropriate treatment are eligible.

  • Vaccination with a live attenuated vaccine within 4 weeks of cycle one day one and while on trials is prohibited except for administration of inactivated vaccines.
  • Known prior severe hypersensitivity to investigational product or any component in its formulations, including known severe hypersensitivity reactions to monoclonal antibodies (NCI CTCAE v5.0 Grade ≥ 3).
  • Subjects taking prohibited medications as described in Section 6.4.2. A washout period of prohibited medications for a period of at least 5 half-lives or as clinically indicated should occur prior to the start of treatment.
  • Subject is a prisoner or involuntarily incarcerated or is compulsorily detained for treatment of either a psychiatric or physical illness (e.g. infectious disease).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treatment: all patients
Patients entering trial should be on stable dose of osi for ≥4 weeks. Patients will self-administer osi by mouth regardless of food once daily. Doses should be taken at about the same time every day (±6hrs) and recorded on the patient dosing diary. Doses missed outside of the dosing window should not be made up but patients should be instructed to take their next dose at their regularly scheduled time. Ipi will be administered at the assigned dose level every 21 days (±3days) for a max of 4 doses. Ipi must be infused using a volumetric pump over 90min (±10min) through an IV line. Upon completion of the ipilimumab regimen, patients will continue osimertinib daily until disease progression, initiation of new anti-cancer therapy, or death by any cause.
Drug: Ipilimumab
Cohort 1: Osi 40 mg or 80 mg daily; Ipi 3 mg/kg every 3 weeks Cohort 2: Osi 40 mg or 80 mg daily; Ipi 1 mg/kg every 3 weeks
Other Names:
  • Yervoy
  • Bristol-Myers Squibb (BMS)-734016
  • Medarex (MDX)-010
Drug: Osimertinib
Cohort 1: Osi 40 mg or 80 mg daily; Ipi 3 mg/kg every 3 weeks Cohort 2: Osi 40 mg or 80 mg daily; Ipi 1 mg/kg every 3 weeks
Other Names:
  • Tagrisso

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Short and Long term tolerability of ipilimumab in combination with osimertinib: Adverse Events (AEs)
Time Frame: The safety elevation period will be from cycle one day one to cycle two day 21. First 4 cycles=21 days. Additional cycles are 28days.
Adverse Events (AEs) as characterized by type, severity (as graded by National Cancer Institute Common Terminology Criteria for Adverse Events [NCI CTCAE] v5.0), timing, seriousness, and relationship to study treatment.
The safety elevation period will be from cycle one day one to cycle two day 21. First 4 cycles=21 days. Additional cycles are 28days.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy of osimertinib in combination with ipilimumab: Objective response rate (ORR)
Time Frame: Patients will remain on treatment until progression and then followed for survival for 5 years from the end of treatment visit.
Objective response rate (ORR) will be assessed by the number of patients obtaining a complete response plus the number of patients obtaining a partial response divided by the total number of response evaluable subjects.
Patients will remain on treatment until progression and then followed for survival for 5 years from the end of treatment visit.
Efficacy of osimertinib in combination with ipilimumab: Osimertinib progression free survival (oPFS)
Time Frame: PFS defined as the time between initiation of osimertinib and documented progression, death, or 5 yrs. from end of treatment
Osimertinib progression free survival (oPFS) will be assessed as the time from the first dose of osimertinib until documented radiographic or clinical progression or death by any cause.
PFS defined as the time between initiation of osimertinib and documented progression, death, or 5 yrs. from end of treatment
Efficacy of osimertinib in combination with ipilimumab: Ipilimumab progression free survival (iPFS)
Time Frame: iPFS defined as the time between the initiation of ipilimumab and documented progression, death, or 5 yrs from end of treatment
Ipilimumab progression free survival (iPFS) as assessed as the time from the first dose of ipilimumab until documented radiographic or clinical progression or death by any cause.
iPFS defined as the time between the initiation of ipilimumab and documented progression, death, or 5 yrs from end of treatment
Efficacy of osimertinib in combination with ipilimumab: Overall survival
Time Frame: will be assessed as the time between trial initiation and death of any cause up to 5 yrs after end of treatment
Overall survival will be assessed as the time from trial initiation until death by any cause.
will be assessed as the time between trial initiation and death of any cause up to 5 yrs after end of treatment
Efficacy of osimertinib in combination with ipilimumab
Time Frame: will be assessed as the time between radiographic progression and the initiation of any alternative anti-cancer therapy up to 5 yrs. after end of treatment.
Time until the initiation of alternative anti-cancer therapy as defined as the time from radiographic progression until the first dose of alternative therapy.
will be assessed as the time between radiographic progression and the initiation of any alternative anti-cancer therapy up to 5 yrs. after end of treatment.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Utah

Collaborators

Bristol-Myers Squibb

Investigators

  • Principal Investigator: Matthew Gumbleton, MD, Huntsman Cancer Institute

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 20, 2020

Primary Completion (Actual)

January 29, 2024

Study Completion (Estimated)

April 30, 2028

Study Registration Dates

First Submitted

October 18, 2019

First Submitted That Met QC Criteria

October 24, 2019

First Posted (Actual)

October 28, 2019

Study Record Updates

Last Update Posted (Actual)

May 19, 2026

Last Update Submitted That Met QC Criteria

May 15, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HCI124882

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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