Infliximab and Intravenous Immunoglobulin Therapy in Treating Patients With Steroid-Refractory Pneumonitis

Study Overview
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Brief Summary
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This phase II trial studies how well infliximab and intravenous immunoglobulin therapy work in treating patients with pneumonitis that does not respond to steroid treatment. Immunotherapy with monoclonal antibodies such as, infliximab, may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Intravenous immunoglobulin therapy may improve pneumonitis. It is not yet known whether giving infliximab and intravenous immunoglobulin therapy will work better in treating patients with pneumonitis.

Detailed Description
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PRIMARY OBJECTIVE: I. To assess pneumonitis response to additional immunosuppression (infliximab or intravenous immunoglobulin therapy [IVIG]) in patients with steroid-refractory pneumonitis at 28-days. SECONDARY OBJECTIVES: I. To assess functional parameters of steroid-refractory pneumonitis at day 1, 14-days and 28-days after day 1 of receipt of additional immunosuppression (infliximab or IVIG). II. To assess radiologic parameters of steroid-refractory pneumonitis at day 1, 14-days and 28-days after day 1 of receipt of additional immunosuppression (infliximab or IVIG). III. To assess patient-reported outcomes of steroid-refractory pneumonitis at day 1, 14-days and 28-days after day 1 of receipt of additional immunosuppression (infliximab or IVIG). IV. To assess death after additional immunosuppression. V. To assess the rate of infections in the 28-day period after additional immunosuppression. EXPLORATORY OBJECTIVES: I. To examine lung tissue, bronchoalveolar lavage (BAL) and serial blood samples in patients who develop steroid-refractory pneumonitis. II. To examine associations between BAL phenotypes and pneumonitis response, functional and radiologic parameters of pneumonitis. III. To evaluate associations between pneumonitis and autoantibodies, T-cell expansion, and baseline cytokines in the blood. OUTLINE: Patients are randomized to 1 of 2 arms. ARM A: Patients receive infliximab intravenously (IV) on day 1 followed by prednisone taper IV or orally (PO) for 4-6 weeks in the absence of disease progression or unacceptable toxicity. Patients may receive an additional dose of infliximab IV on day 14 at the discretion of the treating physician. ARM B: Patients receive intravenous immunoglobulin therapy IV over 2-5 days per institutional guidelines followed by prednisone taper IV or PO for 4-6 weeks in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 28, 42 and 56 days.

Official Title
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Optimizing Immunosuppression for Steroid-Refractory Anti-PD-1/PD-L1 Pneumonitis

Conditions
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Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm, Steroid-Refractory Pneumonitis

Intervention / Treatment
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* Biological: Infliximab
* Biological: Intravenous Immunoglobulin Therapy
* Drug: Prednisone
* Other: Quality-of-Life Assessment
* Other: Questionnaire Administration


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients must be English-speaking and be able to provide informed consent Patient must be willing and able to undergo arterial blood gas assessment as per the treating investigator. Patient must not have contraindication for arterial blood gas assessment Women must not be pregnant or breast-feeding due to the potential risk to the fetus of infliximab or IVIG. All females of childbearing potential must have a blood test or urine test within 14 days prior to randomization to rule out pregnancy. A female of childbearing potential is any woman, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy; or 3) has not been naturally postmenopausal for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months). Women of childbearing potential and sexually active males must be strongly advised to use an accepted and effective method(s) of contraception or to abstain from sexual intercourse for a minimum of 56 days (the duration of their participation in the study) Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-3 Patient may have received any number of lines of prior systemic therapy Patient may have any solid tumor or hematologic malignancy is eligible Patient must have received treatment with an anti-PD-1/PD-L1 agent either alone or in combination with another anti-cancer agent, as their most recent therapy prior to development of pneumonitis Patient must have steroid-refractory pneumonitis defined as: Grade 2 pneumonitis that has not clinically improved by a Common Terminology Criteria for Adverse Events (CTCAE) grade in greater than 72 hours or maximum of 14 days or Grade 3 or higher pneumonitis that has not clinically improved by a CTCAE grade in greater than 48 hours or maximum of 14 days with high dose corticosteroids (methylprednisolone or prednisone 1-4 mg/kg/equivalent) as their most recent treatment for pneumonitis, as determined by the treating investigator Patient may have received anti-PD-1/PD-L1 therapy as standard-of-care or part of a clinical trial Patient must have had pathogen-negative infectious diagnostic evaluation within 14 days prior to randomization, and at a minimum these should include: blood culture, urine culture, sputum culture, and viral panel: rapid flu, respiratory syncytial virus (RSV), herpes simplex virus (HSV). Empiric antibiotics for culture negative infections are not an exclusion for study entry Patient must have had a pathogen-negative bronchoscopic assessment of BAL fluid within 14 days prior to randomization. A minimum assessment for pathogens on BAL must include: gram stain, fungal panel, viral panel Patient must have a negative tuberculosis assessment (TB spot test, quantiferon gold or tuberculin skin test) within 14 days prior to randomization Patient must have chest computed tomography (CT) scan without contrast performed =< 14 days before randomization. Patient must not have a contraindication for CT Exclusion Criteria: Patient must not have clinical evidence of cardiac dysfunction (as determined by the treating investigator) as an alternative diagnosis to steroid-refractory pneumonitis Patient must not be receiving anti-PD-1/-PD-L1 agent in combination with any of the following anti-cancer agents: docetaxel, cyclophosphamide, gefitinib, erlotinib, osimertinib, crizotinib, bleomycin, afatinib Patient must not be receiving concurrent radiation therapy to the chest Patient must not be deemed to have radiation pneumonitis. Patients with a history of stable radiation pneumonitis not requiring corticosteroid therapy within the last 3 months prior to randomization will be allowed on study Patient must not have pre-existing interstitial lung disease or pneumonitis requiring corticosteroid therapy from any other cause, as determined by the treating investigator Patient must not have an absolute contraindication to IVIG or infliximab, including: clinical history of severe hypersensitivity reaction, selective IgA deficiency, active hepatitis B, active tuberculosis, active human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) where a study subject has a CD4 count of =< 200 at screening, or drug interaction

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Arm A (infliximab)<br>Patients receive infliximab IV on day 1 followed by prednisone taper IV or PO for 4-6 weeks in the absence of disease progression or unacceptable toxicity. Patients may receive an additional dose of infliximab IV on day 14 at the discretion of the treating physician. | Biological: Infliximab<br>* Given IV<br>* Other names: Remsima;Drug: Prednisone<br>* Given IV or PO<br>* Other names: SK-Prednisone;Other: Quality-of-Life Assessment<br>* Ancillary studies<br>* Other names: Quality of Life Assessment;Other: Questionnaire Administration<br>* Ancillary studies<br>|
| Experimental: Arm B (intravenous immunoglobulin therapy)<br>Patients receive intravenous immunoglobulin therapy IV over 2-5 days per institutional guidelines followed by prednisone taper IV or PO for 4-6 weeks in the absence of disease progression or unacceptable toxicity. | Biological: Intravenous Immunoglobulin Therapy<br>* Given IV<br>* Other names: IVIG Therapy;Drug: Prednisone<br>* Given IV or PO<br>* Other names: SK-Prednisone;Other: Quality-of-Life Assessment<br>* Ancillary studies<br>* Other names: Quality of Life Assessment;Other: Questionnaire Administration<br>* Ancillary studies<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pneumonitis response rate | Pneumonitis response will be defined as an improvement in partial pressure of arterial oxygen (PaO2)/fraction of inspired oxygen (FiO2) of >= 20% measured by PaO2 and recording of the FiO2 received by the patient at the time of the arterial blood gas assessment, on day 28 compared with day 1. Response rate will be reported with a proportion and its 90% confidence interval for each treatment arm. A comparison on the pneumonitis response rate between the two arms (infliximab vs. intravenous immunoglobulin [IVIG]) will be performed using Fisher's exact test. | At day 28 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Radiologic parameters of steroid-refractory pneumonitis | Radiologic features of steroid-refractory pneumonitis will be assessed by percentage lung parenchyma involved, percentage of ground-glass opacity in lung parenchyma, and lung volume on computed tomography. The pneumonitis and lung volume will be graded Definitely decreased, Probably decreased, No significant change, Probably increased and Definitely increased. Response to study therapy will be defined by combining the categories Definitely decreased and Probably decreased. The response rate will be compared between the arms using Fisher's exact test. | At days 1, 14, and 28 | 
| Functional parameters of steroid-refractory pneumonitis by spirometry | Functional features of pneumonitis will be assessed by spirometry (forced vital capacity, forced expiratory volume in one second). These quantitative measures will be reported descriptively (by median, mean, and range) by timepoints and treatment arms. Pneumonitis improvement (from day 1 to day 14 and from day 1 to day 28) by each measure will be evaluated using the Wilcoxon signed-rank tests, by arm, without statistical adjustments. | At days 1, 14, and 28 | 
| Functional parameters of steroid-refractory pneumonitis by diffusion capacity | Functional features of pneumonitis will be assessed by diffusion capacity of the lung. These quantitative measures will be reported descriptively (by median, mean, and range) by timepoints and treatment arms. Pneumonitis improvement (from day 1 to day 14 and from day 1 to day 28) by each measure will be evaluated using the Wilcoxon signed-rank tests, by arm, without statistical adjustments. | At days 1, 14, and 28 | 
| Functional parameters of steroid-refractory pneumonitis by oxygen saturation | Functional features of pneumonitis will be assessed by oxygen saturation on room air at rest, collected as part of the vital signs. These quantitative measures will be reported descriptively (by median, mean, and range) by timepoints and treatment arms. Pneumonitis improvement (from day 1 to day 14 and from day 1 to day 28) by each measure will be evaluated using the Wilcoxon signed-rank tests, by arm, without statistical adjustments. | At days 1, 14, and 28 | 
| Number of reported deaths | Death reported in the 28-day period will be tabulated by treatment arm, and classified as pneumonitis-related, immunosuppression related, disease-related or other. | Up to 28 days | 
| Incidence of adverse events | Will be graded according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The number and severity of treatment-related adverse events from infections in any organ system by the CTCAE reported in the 28-day period after additional immunosuppression. | Up to 28 days | 
| Patient-reported outcomes of steroid-refractory pneumonitis | Patient-reported outcomes of steroid-refractory pneumonitis will be measured by questionnaires (Functional Assessment of Cancer Therapy - Lung version 4) and the Borg scale). Functional Assessment of Cancer Therapy - Lung consists of 5 subscales and each subscale score will be computed separately. These quantitative measures will be reported descriptively (by median, mean, and range) by timepoints and treatment arms. Pneumonitis improvement (from day 1 to day 14 and from day 1 to day 28) by each measure will be evaluated using the Wilcoxon signed-rank tests, by arm, without statistical adjustments. | At days 1, 14, and 28 |