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Trial of Radiation and Gene Therapy Before Nivolumab for Metastatic Non-Small Cell Lung Carcinoma and Uveal Melanoma

ENSIGN: Phase II Window of Opportunity Trial of Stereotactic Body Radiation Therapy and In Situ Gene Therapy Followed by Nivolumab in Metastatic Squamous or Non-Squamous Non-Small Cell Lung Carcinoma and Metastatic Uveal Melanoma

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02831933
Acronym
ENSIGN
Enrollment
11
Registered
2016-07-13
Start date
2017-02-15
Completion date
2020-11-05
Last updated
2023-09-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lung Squamous Cell Carcinoma Stage IV, Metastatic Uveal Melanoma, Nonsquamous Nonsmall Cell Neoplasm of Lung

Keywords

lung cancer, metastatic, gene therapy, immunotherapy, melanoma, uveal

Brief summary

This is a Phase II trial to determine the efficacy and safety of in situ gene therapy and stereotactic body radiation therapy (SBRT) used as a window of opportunity treatment before nivolumab in patients with metastatic squamous or non-squamous non-small cell lung carcinoma (NSCLC) and metastatic uveal melanoma. In situ gene therapy will consist of adenovirus-mediated expression of herpes simplex virus thymidine kinase (ADV/HSV-tk) plus Valacyclovir therapy.

Detailed description

This is a Phase II trial to determine the efficacy and safety of in situ gene therapy and stereotactic body radiation therapy (SBRT) used as a window of opportunity treatment before nivolumab in patients with metastatic squamous or non-squamous non-small cell lung carcinoma (NSCLC) and metastatic uveal melanoma. In situ gene therapy will consist of adenovirus-mediated expression of herpes simplex virus thymidine kinase (ADV/HSV-tk) plus Valacyclovir therapy. Male or female patients aged ≥18 years with histologically or cytologically confirmed metastatic squamous or non-squamous NSCLC whose disease has progressed after a platinum-based chemotherapy and a single-agent immunotherapy OR histologically or cytologically confirmed metastatic uveal melanoma that is immunotherapy naive are eligible to participate in the study. NSCLC patients with EGFR or ALK genomic tumor aberrations are eligible only if they have had disease progression on FDA-approved therapy for these aberrations. ADV/HSV-tk (5 x 1011 viral particles) in a 2-mL total volume will be injected intratumorally on day 0 of the study. Valacyclovir will be orally administered at a dose of 2 g three times daily for 14 days. Valacyclovir treatment will be administered 24 hours after the gene vector injection from day 1 to day 15 of the study. SBRT of 30 gray (Gy; 6 Gy X 5 fractions) will be administered over 2 weeks from day 2 to day 16 of the study. Nivolumab (480 mg) will be administered intravenously over 30 minutes every 4 weeks starting on day 17 of the study and continuing until disease progression, unacceptable toxicity, or up to 12 months in patients without disease progression. The primary endpoint will be the objective response rate (ORR) of ADV/HSV-tk + Valacyclovir therapy in combination with SBRT used as a window of opportunity treatment before nivolumab in patients with metastatic squamous or non-squamous NSCLC. Both RECIST 1.1 and modified immune-related response criteria (irRC; derived from RECIST 1.1) will be used to assess treatment response. Secondary endpoints will include a) clinical benefit rate (CBR); b) duration of response (DoR); c) overall survival (OS) and progression-free survival (PFS) rates; d) safety and toxicity (toxicity will be defined as any treatment-related death or any ≥ grade 3 toxicity excluding alopecia and constitutional symptoms as assessed by the NCI CTCAE v4.03); and e) immune-mediated antitumor activity (assessed by RECIST 1.1 and modified irRC) of ADV/HSV-tk plus Valacyclovir therapy in combination with SBRT used as a window of opportunity treatment before nivolumab.

Interventions

BIOLOGICALADV/HSV-tk

Replication-defective recombinant adenovirus vector

DRUGValacyclovir

Prodrug of the antiviral drug acyclovir

RADIATIONSBRT

Low-dose SBRT

DRUGnivolumab

Fully human immunoglobulin (Ig) G4 anti-PD-1 monoclonal antibody

Sponsors

Eric Bernicker, MD
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female ≥18 years of age. * Histologically or cytologically confirmed stage IV, metastatic squamous or non-squamous NSCLC that has progressed after a platinum-based chemotherapy and after a single-agent immunotherapy OR histologically or cytologically confirmed metastatic uveal melanoma that is immunotherapy naive * Evaluable or measurable disease as per RECIST 1:1, a target lesion of suitable diameter (at least 5 mm) for SBRT, and a non-target lesion of at least 1 cm in diameter for abscopal effect evaluation. * ≥ 4 weeks since any major surgery. * A 2-week washout period post any prior systemic anticancer therapy, RT, and/or investigational therapy is required prior to trial entry. Subject should be adequately recovered from the acute toxicities of any prior therapy. * Life expectancy greater than or equal to 6 months. * Eastern Cooperative Oncology Group performance status of 0-1. * Adequate bone marrow function: * Absolute neutrophil count ≥ 1.5 x 10\^9/L (without granulocyte colony stimulating factor support within 2 weeks of laboratory test used to determine eligibility) * Platelets ≥ 100 x 10\^9/L (without transfusion within 2 weeks of laboratory test used to determine eligibility) * Hemoglobin ≥ 8 g/dL (without blood transfusion) * White blood cell count \> 2,500/uL and \< 15,000/uL * Lymphocyte count ≥ 500/uL * Adequate liver function (NSLC Cohort): * Serum bilirubin less than or equal to 1.0 X upper limit of normal (ULN; patients with known Gilbert's disease who have serum bilirubin level less than or equal to 3 X ULN may be enrolled) * Serum transaminases (aspartate transaminase \[AST\] or alanine transaminase \[ALT\]) activity less than or equal to 2.5 X ULN with normal alkaline phosphatase (patients with liver metastases less than or equal to 5 x ULN) OR AST and ALT less than or equal to 1.5 X ULN with an alkaline phosphatase greater than 2.5 X ULN * Adequate liver function (uveal melanoma cohort): * Serum bilirubin less than 1.5 ULN (patients with known Gilbert's disease who have serum bilirubin level 3 ULN may be enrolled) * Serum transaminases (AST or ALT) activity less than or equal to 4 ULN with normal alkaline phosphatase (patients with liver metastases less than or equal to 5 x ULN) OR AST and ALT less than or equal to 1.5 ULN with an alkaline phosphatase greater than or equal to 2.5 ULN * International normalized ratio and activated partial thromboplastin time (aPTT) less than or equal to 1.5 X ULN (unless patient is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants) * Adequate renal function: serum creatinine less than 2 X ULN. * Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within 7 days prior to the administration of the first study treatment. Women must not be lactating. * WOCBP and men must practice an effective method of birth control * Signed informed consent to participate in the study must be obtained from patients after they have been fully informed of the nature and potential risks of the study by the investigator (or his/her designee) with the aid of written information. * Willing to provide biopsies as required by the study.

Exclusion criteria

* Prior treatment with gene therapy. * Any immunotherapy within 2 weeks of study treatment start (NSCLC cohort only). * Prior treatment with immunotherapy (uveal melanoma cohort only) * Patients with EGFR or ALK genomic tumor aberrations that have not received any FDA-approved therapy for these aberrations (NSCLC cohort only). * Oxygen-dependent chronic obstructive pulmonary disease (NSCLC cohort only). * Patients requiring oral prednisone for emphysema management (NSCLC cohort only). * History of liver disease, such as cirrhosis or active/chronic hepatitis B or C. * History of or current alcohol misuse/abuse within the past 12 months. * Known gallbladder or bile duct disease (i.e., infection or cholecystitis) or acute or chronic pancreatitis. * Major surgery within 4 weeks prior to study enrollment. * Uncontrolled brain or leptomeningeal metastases or brain or leptomeningeal metastases requiring continued glucocorticoid treatment. Patients who have been treated at least 4 weeks prior to enrollment and have a CT or magnetic resonance imaging scan of the brain showing no evidence of disease progression within 4 weeks of enrollment are eligible. * Congestive heart failure: New York Heart Association class III or IV heart failure or unstable angina. * History of syncope or family history of idiopathic sudden death. * Sustained or clinically significant cardiac arrhythmias including sustained ventricular tachycardia, ventricular fibrillation, clinically significant bradycardia, advanced heart block (Mobitz II or higher atrioventricular nodal block), prolonged heart rate-corrected QT interval (longer than 470 milliseconds), or history of acute myocardial infarction. (The QT interval is the time between the start of the Q wave and the end of the T wave in the cardiac electrical cycle) * Concomitant disease(s) that could prolong QT such as autonomic neuropathy (caused by diabetes or Parkinson's disease), human immunodeficiency virus (HIV), cirrhosis, uncontrolled hypothyroidism, or cardiac failure. * Presence of active or suspected acute or chronic uncontrolled infection or history of immunocompromise, including a positive HIV test result. * Any severe and/or uncontrolled medical conditions or other conditions that could affect patient participation in the study such as severely impaired lung function, any active (acute or chronic) or uncontrolled infection/disorders, and nonmalignant medical illnesses that are uncontrolled or whose control may be jeopardized by the study therapy. * Known or suspected allergy or hypersensitivity to any component of nivolumab or its analogues or any component of the proposed regimen (gene vector/Valacyclovir). * Inability to swallow food or any condition of the upper gastrointestinal tract that precludes administration of oral medications (Valacyclovir). * Any active malignancy except for non-melanoma skin cancer or in situ cervical cancer or treated cancer from which the patient has been continuously disease free for more than 5 years. * Pregnant or breastfeeding women or women/men able to conceive and unwilling to practice an effective method of birth control. * Unwilling or unable to comply with the study protocol.

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate (ORR)30 days after the last dose of nivolumab, up to 6 monthsDetermine the ORR of ADV/HSV-tk plus Valacyclovir therapy in combination with SBRT used as a window of opportunity treatment before nivolumab. Administration of ADV/HSV-tk + Valacyclovir in combination with SBRT before nivolumab represents a novel window of opportunity to enhance nivolumab efficacy by boosting endogenous immune-mediated antitumor activity and neoantigen expression. The concepts of the irRC are combined with RECIST 1.1 to come up with the modified irRC, which uses unidimensional measurements. For modified irRC, only target and measurable lesions are taken into account. The same assessment method and technique should be used to characterize each identified and reported target lesion(s) at baseline, during the trial, and at EOT. All measurements should be recorded in metric notation.

Secondary

MeasureTime frameDescription
Overall Survival (OS) Rate30 days after the last dose of nivolumab, up to 6 monthsDetermine the OS rate. Months from start of treatment till date of death.
Progression Free Survival (PFS) Rate30 days after the last dose of nivolumab, up to 6 monthsDetermine the Progression Free Survival (PFS) rate. Progressive Disease (PD): At least a 20% increase in the sum of the diameters of target lesions, using the smallest sum on study (includes the baseline sum) as the reference. In addition to the relative 20% increase, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression) Overall irPD: ≥ 20% increase in the sum of the longest diameters of target and new measurable lesions increases (compared to nadir), confirmed by a repeat, consecutive observation at least 6 weeks (normally it should be done at 8 weeks) from the date first documented. Documentation of immune-related PD (based on modified irRC) does not mandate discontinuation of the study treatment even after irPD is confirmed with CT scan 6 weeks after the initial observation of irPD.
Clinical Benefit Rate (CBR)30 days after the last dose of nivolumab, up to 6 monthsEstimate the CBR as assessed by RECIST 1.1 and modified immune-related criteria

Countries

United States

Participant flow

Recruitment details

Recruitment was terminated early due to termination of funding by sponsor

Participants by arm

ArmCount
Experimental
ADV/HSV-tk (5 x 1011 viral particles) in a 2-mL total volume will be injected intratumorally on day 0 of the study. Valacyclovir will be orally administered at a dose of 2 g three times daily for 14 days. Valacyclovir treatment will be administered 24 hours after the gene vector injection from day 1 to day 15 of the study. SBRT of 30 gray (Gy; 6 Gy X 5 fractions) will be administered over 2 weeks from day 2 to day 16 of the study. Nivolumab (480 mg) will be administered intravenously over 30 minutes every 4 weeks starting on day 17 of the study and continuing until disease progression, unacceptable toxicity, or up to 12 months in patients without disease progression. ADV/HSV-tk: Replication-defective recombinant adenovirus vector Valacyclovir: Prodrug of the antiviral drug acyclovir SBRT: Low-dose SBRT nivolumab: Fully human immunoglobulin (Ig) G4 anti-PD-1 monoclonal antibody
11
Total11

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyPhysician Decision11

Baseline characteristics

CharacteristicExperimental
Age, Continuous68.77 years
Primary Diagnosis
Non-Small Cell Lung Carcinoma
4 Participants
Primary Diagnosis
Uveal Melanoma
7 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
9 Participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 11
other
Total, other adverse events
11 / 11
serious
Total, serious adverse events
4 / 11

Outcome results

Primary

Overall Response Rate (ORR)

Determine the ORR of ADV/HSV-tk plus Valacyclovir therapy in combination with SBRT used as a window of opportunity treatment before nivolumab. Administration of ADV/HSV-tk + Valacyclovir in combination with SBRT before nivolumab represents a novel window of opportunity to enhance nivolumab efficacy by boosting endogenous immune-mediated antitumor activity and neoantigen expression. The concepts of the irRC are combined with RECIST 1.1 to come up with the modified irRC, which uses unidimensional measurements. For modified irRC, only target and measurable lesions are taken into account. The same assessment method and technique should be used to characterize each identified and reported target lesion(s) at baseline, during the trial, and at EOT. All measurements should be recorded in metric notation.

Time frame: 30 days after the last dose of nivolumab, up to 6 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
ExperimentalOverall Response Rate (ORR)Complete response (CR)0 Participants
ExperimentalOverall Response Rate (ORR)Partial response (PR)0 Participants
ExperimentalOverall Response Rate (ORR)Stable disease (SD)0 Participants
ExperimentalOverall Response Rate (ORR)Progressive disease (PD)11 Participants
Secondary

Clinical Benefit Rate (CBR)

Estimate the CBR as assessed by RECIST 1.1 and modified immune-related criteria

Time frame: 30 days after the last dose of nivolumab, up to 6 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
ExperimentalClinical Benefit Rate (CBR)Complete response (CR)0 Participants
ExperimentalClinical Benefit Rate (CBR)Partial response (PR)0 Participants
ExperimentalClinical Benefit Rate (CBR)Stable disease (SD)0 Participants
ExperimentalClinical Benefit Rate (CBR)Progressive disease (PD)11 Participants
Secondary

Overall Survival (OS) Rate

Determine the OS rate. Months from start of treatment till date of death.

Time frame: 30 days after the last dose of nivolumab, up to 6 months

ArmMeasureValue (MEAN)
ExperimentalOverall Survival (OS) Rate15 Months
Secondary

Progression Free Survival (PFS) Rate

Determine the Progression Free Survival (PFS) rate. Progressive Disease (PD): At least a 20% increase in the sum of the diameters of target lesions, using the smallest sum on study (includes the baseline sum) as the reference. In addition to the relative 20% increase, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression) Overall irPD: ≥ 20% increase in the sum of the longest diameters of target and new measurable lesions increases (compared to nadir), confirmed by a repeat, consecutive observation at least 6 weeks (normally it should be done at 8 weeks) from the date first documented. Documentation of immune-related PD (based on modified irRC) does not mandate discontinuation of the study treatment even after irPD is confirmed with CT scan 6 weeks after the initial observation of irPD.

Time frame: 30 days after the last dose of nivolumab, up to 6 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ExperimentalProgression Free Survival (PFS) Rate0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026