Publications by authors named "Michele Maio"

Article Synopsis
  • The phase III KEYNOTE-913 study focused on assessing the effectiveness and safety of pembrolizumab as a first-line treatment for advanced Merkel cell carcinoma (MCC).
  • Results indicated a 49% objective response rate among the 55 patients treated, with a median duration of response of 39.8 months and median overall survival of 24.3 months.
  • The treatment showed manageable side effects, with 69% of patients experiencing any grade adverse events, but only 24% facing severe issues, highlighting pembrolizumab's potential in this patient group.
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Background: Previous results from this trial showed longer overall survival after treatment with nivolumab plus ipilimumab or with nivolumab monotherapy than with ipilimumab monotherapy in patients with advanced melanoma. Given that patients with advanced melanoma are living longer than 7.5 years, longer-term data were needed to address new clinically relevant questions.

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  • Immune-checkpoint inhibitors (ICIs) can cause immune-related adverse events (irAEs), with immune-mediated pneumonitis (im-PN) being a rare but serious complication that requires prompt diagnosis and management to prevent severe outcomes and allow for continued cancer treatment.
  • A study collected data from 1004 cancer patients treated with ICIs, finding that 24 (2%) developed im-PN, with varying degrees of severity; most patients responded well to steroid treatment, leading to recovery in 21 individuals within an average of 14 weeks.
  • Three main radiologic patterns of im-PN were identified (organizational pneumonia-like, pulmonary eosinophilia, and hypersensitivity pneumonitis), and bronchoalve
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  • Checkpoint inhibitor therapy, particularly nivolumab combined with ipilimumab, shows promise for patients with high tumor mutational burden (TMB-H) across various tumor types, indicating a potential survival benefit.
  • The study involved 201 patients with advanced solid tumors who were resistant to standard treatments; they were randomly assigned to receive either the combination of nivolumab and ipilimumab or nivolumab alone, with the effectiveness measured based on objective response rates.
  • Results demonstrated higher response rates in patients with TMB-H tumors who received the combination therapy, and the safety profile was acceptable, suggesting this treatment could be beneficial for patients with limited options.
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Patients with cancer can be immunocompromised because of their disease and/or due to anticancer therapy. In this population, severe influenza virus infections are associated with an elevated risk of morbidity and mortality. Influenza vaccination is therefore highly recommended in cancer patients, including those receiving anticancer therapy.

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Background: Glioblastoma multiforme (GBM) is a highly aggressive primary brain tumor, that is refractory to standard treatment and to immunotherapy with immune-checkpoint inhibitors (ICI). Noteworthy, melanoma brain metastases (MM-BM), that share the same niche as GBM, frequently respond to current ICI therapies. Epigenetic modifications regulate GBM cellular proliferation, invasion, and prognosis and may negatively regulate the cross-talk between malignant cells and immune cells in the tumor milieu, likely contributing to limit the efficacy of ICI therapy of GBM.

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Introduction: Immunomodulating therapies harness the power of the immune system to combat disease. In advanced melanoma, immune checkpoint inhibitors have significantly improved survival outcomes by activating the immune system to recognize and eliminate cancer cells. In psoriasis, interleukin inhibitors effectively suppress inflammation and improve disease symptoms.

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Melanoma is the most aggressive form of skin cancer, representing approximately 4% of all cutaneous neoplasms and accounting for up to 80% of deaths. Advanced stages of melanoma involve metastatic processes and are associated with high mortality and morbidity, mainly due to the rapid dissemination and heterogeneous responses to current therapies, including immunotherapy. Immune checkpoint inhibitors (ICIs) are currently used in the treatment of metastatic melanoma (MM) and despite being linked to an increase in patient survival, a high percentage of them still do not benefit from it.

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Background: The primary analysis of the phase III NIBIT-M2 study showed a 41% 4-year overall survival (OS) of melanoma patients with asymptomatic brain metastases treated with ipilimumab plus nivolumab.

Methods: Here, we report the 7-year efficacy outcomes and the Health-Related Quality of Life (HRQoL) analyses of the NIBIT-M2 study.

Results: As of May 1, 2023, at a median follow-up of 67 months (mo), the median OS was 8.

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Pleural mesothelioma (PM) is an aggressive and rare disease, characterized by a very poor prognosis. For almost two decades, the world standard treatment regimen for unresectable PM has consisted of a platinum-based drug plus pemetrexed, leading to an overall survival of approximately 12 months. The dramatic therapeutic scenario of PM has recently changed with the entry into the clinic of immune checkpoint inhibition, which has proven to be an effective approach to improve the survival of PM patients.

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The 2022 yearly Think Tank Meeting in Siena, Tuscany (Italy), organized by the Italian Network for Tumor Biotherapy (NIBIT) Foundation, the Parker Institute for Cancer Immunotherapy and the World Immunotherapy Council, included a focus on the future of integrating and expanding the use of targeting cytotoxic T-lymphocyte-associated protein 4 (CTLA-4). The conference members exchanged their views on the lessons from targeting CTLA-4 and compared the effect to the impact of blocking Programmed cell death protein 1 (PD1) or its ligand (PDL1). The increasing experience with both therapeutic approaches and their combination suggests that targeting CTLA-4 may lead to more durable responses for a sizeable proportion of patients, though the specific mechanism is not entirely understood.

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Association with hypomethylating agents is a promising strategy to improve the efficacy of immune checkpoint inhibitors-based therapy. The NIBIT-M4 was a phase Ib, dose-escalation trial in patients with advanced melanoma of the hypomethylating agent guadecitabine combined with the anti-CTLA-4 antibody ipilimumab that followed a traditional 3 + 3 design (NCT02608437). Patients received guadecitabine 30, 45 or 60 mg/m/day subcutaneously on days 1 to 5 every 3 weeks starting on week 0 for a total of four cycles, and ipilimumab 3 mg/kg intravenously starting on day 1 of week 1 every 3 weeks for a total of four cycles.

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Unlabelled: In recent years, there has been considerable interest in mAb-based induction of costimulatory receptor signaling as an approach to combat cancer. However, promising nonclinical data have yet to translate to a meaningful clinical benefit. Inducible T-cell costimulator (ICOS) is a costimulatory receptor important for immune responses.

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Article Synopsis
  • - The CheckMate 401 study aimed to evaluate the safety and effectiveness of combining nivolumab and ipilimumab, followed by nivolumab alone, in patients with advanced melanoma who historically have had poor outcomes.
  • - A total of 533 treatment-naive patients with unresectable stage III-IV melanoma were analyzed, revealing incidences of severe adverse events and varying overall survival rates across different patient subgroups.
  • - Results suggested the treatment was generally tolerable, with a 24-month overall survival rate of 63%, but efficacy was notably lower in patients with poorer performance status and specific melanoma subtypes, indicating a need for new treatment strategies.
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Background: In preclinical studies, combining M9241 (a novel immunocytokine containing interleukin (IL)-12 heterodimers) with avelumab (anti-programmed death ligand 1 antibody) resulted in additive or synergistic antitumor effects. We report dose-escalation and dose-expansion results from the phase Ib JAVELIN IL-12 trial investigating M9241 plus avelumab.

Methods: In the dose-escalation part of JAVELIN IL-12 (NCT02994953), eligible patients had locally advanced or metastatic solid tumors; in the dose-expansion part, eligible patients had locally advanced or metastatic urothelial carcinoma (UC) that had progressed with first-line therapy.

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Harnessing the immune system with immune-checkpoint(s) blockade (ICB) has dramatically changed the treatment landscape of advanced melanoma patients in the last decade. Indeed, durable clinical responses and long-term survival can be achieved with anti-Cytotoxic T-Lymphocyte Antigen-4 (CTLA-4) and anti-Programmed cell Death-1 (PD-1) monoclonal antibodies (mAb) either alone or in combination. Despite these unprecedented results, due to intrinsic or acquired resistance to ICB-based immunotherapy, about half of metastatic melanoma (MM) patients neither respond to therapy nor experience durable clinical benefit or long-term survival.

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We present the case of a 76-year-old male patient persistently infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the setting of a stage IIIC cutaneous melanoma and non-Hodgkin's lymphoma (NHL). Due to the persistent coronavirus disease 19 (COVID-19), all cancer treatments were discontinued. Because of the worsening of his clinical state and the persistence of SARS-CoV-2 positivity for more than six months, the patient was treated with sotrovimab, which was ineffective due to resistance mutations acquired during that time.

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Background: The combination of Programmed Cell Death 1 (PD-1) and Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4) blockade has dramatically improved the overall survival rate for malignant melanoma. Immune checkpoint blockers (ICBs) limit the tumor's immune escape yet only for approximately a third of all tumors and, in most cases, for a limited amount of time. Several approaches to overcome resistance to ICBs are being investigated among which the addition of epigenetic drugs that are expected to act on both immune and tumor cells.

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Background: CheckMate 817, a phase 3B study, evaluated flat-dose nivolumab plus weight-based ipilimumab in patients with metastatic non-small cell lung cancer (NSCLC). Here, in this research, we report on first-line treatment in patients with Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-1 (cohort A) and special populations (cohort A1: ECOG PS 2; or ECOG PS 0-1 with untreated brain metastases, renal impairment, hepatic impairment, or controlled HIV infection).

Methods: Cohorts A and A1 received nivolumab 240 mg every 2 weeks plus ipilimumab 1 mg/kg every 6 weeks.

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Article Synopsis
  • The study assessed the prognostic value of the Immunoscore in Stage I/II colon cancer patients, using data from over 1,800 individuals across North America and Europe.
  • Results indicated that a high Immunoscore correlated with lower recurrence rates and better survival outcomes, especially significant in Stage II and high-risk Stage II patients.
  • The findings suggest that a low Immunoscore can effectively identify early colon cancer patients at risk of relapse, even when accounting for other clinical factors.
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During the V Siena Immuno-Oncology (IO) Think Tank meeting in 2021, conditions were discussed which favor immunotherapy responses in either primary or secondary brain malignancies. Core elements of these discussions have been reinforced by important publications in 2021 and 2022. In primary brain tumors (such as glioblastoma) current immunotherapies have failed to deliver meaningful clinical benefit.

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The anti-Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4) monoclonal antibody ipilimumab was the first in-class immune-checkpoint inhibitor (ICI) approved for the treatment of melanoma patients. Initially approved for metastatic cutaneous melanoma, treatment with ipilimumab subsequently demonstrated to significantly improve recurrence free survival (RFS) in fully resected, high-risk, stage III melanoma patients. Therapeutic use of ipilimumab has also allowed the initial identification and characterization of unconventional clinical and radiological patterns of response (ie, tumor flare, pseudo-progression) that may occur during ICI therapy, unlike chemotherapy or targeted therapy.

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Article Synopsis
  • This study explores the effectiveness of combining immune checkpoint blockade (ICB) with various epigenetic drugs to boost immune responses in melanoma.
  • Different epigenetic inhibitors, like guadecitabine and givinostat, impact gene expression in melanoma cells differently, particularly affecting immune-related genes.
  • Results from patient biopsies show that guadecitabine treatment enhances specific immune gene signatures, indicating its potential effectiveness in ICB therapies compared to other epigenetic drugs.
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Background: Melanoma is the deadliest form of skin cancer and metastatic disease is associated with a significant survival rate drop. There is an urgent need for consistent tumor biomarkers to scale precision medicine and reduce cancer mortality. Here, we aimed to identify a melanoma-specific circulating microRNA signature and assess its value as a diagnostic tool.

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