Combining ATRA and Atezolizumab for Advanced Lung Cancer Treatment

A Phase Ib Dose De-Escalation Study of All-Trans Retinoic Acid (ATRA) and Atezolizumab in Patients With Advanced Non-Small Cell Lung Cancer

Phase 1 Interventional Ohio State University Comprehensive Cancer Center · NCT04919369

This study is testing whether combining a medication called ATRA with atezolizumab can help people with advanced lung cancer live longer and feel better.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment18 (estimated)
Ages18 Years and up
SexAll
SponsorOhio State University Comprehensive Cancer Center Academic / other
Drugs / interventionsosimertinib, alectinib, chemotherapy, immunotherapy, radiation, atezolizumab
Locations1 site (Columbus, Ohio)
Trial IDNCT04919369 on ClinicalTrials.gov

What this trial studies

This phase Ib trial aims to determine the optimal dose and assess the safety of all-trans retinoic acid (ATRA) combined with atezolizumab in patients with recurrent or metastatic non-small cell lung cancer (NSCLC). The study will evaluate the efficacy of this combination through various endpoints, including progression-free survival and overall survival. Patients will receive tretinoin orally for the first three days of treatment cycles, alongside intravenous atezolizumab on the first day of each cycle, with follow-up assessments every 12 weeks after treatment completion.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with confirmed recurrent or metastatic non-small cell lung cancer who have exhausted standard treatment options.

Not a fit: Patients with curable forms of lung cancer or those who have not received prior standard therapies may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment combination could provide a new therapeutic option for patients with advanced non-small cell lung cancer.

How similar studies have performed: While the combination of ATRA and atezolizumab is a novel approach, similar immunotherapy strategies have shown promise in other studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \>= 18 years
* Confirmed recurrent or metastatic non-small cell carcinoma of the lung of any histology for which there is no curative treatment option
* Measurable disease based on RECIST 1.1
* Patients must have received standard of care chemotherapy and/or immunotherapy. No limits to prior lines of therapy. Prior PD-1 and/or PD-L1 directed therapies are permitted
* Patients with adenocarcinoma and known actionable mutations with FDA-approved treatment options must have received all approved and standard of care treatment options (ie osimertinib for EGFR, alectinib for ALK, etc). Mutational testing is not required for patients with squamous cell non-small cell lung carcinoma
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
* Absolute neutrophil count (ANC) \>= 1,500/mcL
* Lymphocytes ≥500/mcL
* Platelets \>=100,000/mcL
* Serum creatinine =\< 1.5 X upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate \[GFR\] can also be used in place of creatinine or creatinine clearance \[CrCl\]) \>= 60 mL/min for subject with creatinine levels \> 1.5 X institutional ULN
* Serum total bilirubin =\< 1.5 X ULN OR direct bilirubin =\< ULN for subjects with total bilirubin levels \> 1.5 ULN
* Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase \[SGOT\]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase \[SGPT\]) =\< 2.5 X ULN OR =\< 5 X ULN for subjects with liver metastases
* Albumin \>= 2.5 mg/dL
* International normalized ratio (INR) or prothrombin time (PT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants
* Activated partial thromboplastin time (aPTT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
* Anticipated life expectancy of \>= 3 months
* Willing to comply with study procedures
* Female subjects of childbearing potential must be willing to use an adequate method of contraception, for the course of the study through 120 days after the last dose of study medication
* Female subject of childbearing potential should have a negative urine or serum pregnancy within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
* Female subjects of childbearing potential should be willing to use 2 methods of birth control or be surgically sterile, or abstain from heterosexual activity for the course of the study through 5 months days after the last dose of study medication. Subjects should agree to ongoing pregnancy testing during the course of the study and after the end of study therapy. Female subjects of childbearing potential are those who have not been surgically sterilized or have not been free from menses for \> 1 year
* Male subjects should agree to use an adequate method of contraception starting with the first dose of study therapy through 7 months after the last dose of study therapy. Males must refrain from donating sperm during study participation and for 7 months after the last dose of study medication
* Be willing and able to understand and sign the written informed consent document
* Ability to swallow and retain oral medication
* HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible.
* History of hepatitis C virus (HCV) infection treated and cured.

Exclusion Criteria:

* Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment
* Has active autoimmune disease, including myasthenic syndrome, which has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
* Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment
* Cirrhosis (Child-Pugh B or worse) or cirrhosis with history of hepatic encephalopathy or clinically meaningful ascites resulting from cirrhosis. Clinically meaningful ascites is defined as ascites from cirrhosis requiring diuretics or paracentesis
* Untreated central nervous system (CNS) metastases. Patients with treated brain metastases are eligible if they were clinically stable with regard to neurologic function, off steroids after cranial irradiation (whole brain radiation therapy, focal radiation therapy, and stereotactic radiosurgery) ending at least 2 weeks prior to randomization, or after surgical resection performed at least 28 days prior to randomization. The patient must have no evidence of grade \>= 1 CNS hemorrhage based on pretreatment magnetic resonance imaging (MRI) or IV contrast computed tomography (CT) scan (performed within screening window)
* Pregnancy or breastfeeding
* Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
* Any patient who has experienced an unacceptable toxicity on prior checkpoint inhibitor therapy as detailed below:

  * \>= grade 3 adverse events (AE) related to checkpoint inhibitor
  * Ongoing \>= grade 2 immune-related AE associated with checkpoint inhibitor with the exception of endocrine toxicities as detailed below
  * CNS, ocular or cardiac AE of any grade related to checkpoint inhibitor

    * NOTE: Patients with a prior or ongoing endocrine AE are permitted to enroll if they are stably maintained on appropriate replacement therapy and are asymptomatic

Where this trial is running

Columbus, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Metastatic Lung Non-Small Cell CarcinomaRecurrent Lung Non-Small Cell CarcinomaStage IV Lung Cancer AJCC v8Stage IVA Lung Cancer AJCC v8Stage IVB Lung Cancer AJCC v8
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.