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Head and Neck Cancer Recurrence: Diagnosis, Treatment and Prognosis (2nd Edition)

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Therapy".

Deadline for manuscript submissions: 10 October 2026 | Viewed by 1069

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Guest Editor
Department of Otorhinolaryngology, Careggi University Hospital, Florence, Italy
Interests: head & neck cancer; surgery; clinical oncology
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Special Issue Information

Dear Colleagues,

Head and neck (HN) cancer, which mainly presents in the form of squamous cell carcinoma, was the seventh most common cancer worldwide in 2018, with approximately 890,000 new cases and 450,000 deaths. Its incidence is rising in both less-developed countries, due to the increased exposure to classical risk factors (tobacco smoking and alcohol), as well as in high-income nations, due to the spread of high-risk serotypes of human papillomavirus (HPV-16 and HPV-18). Survival rates range from 70% to 80% at five years for early HN cancer (i.e., with neither nodal metastasis at presentation nor evidence of extra-organ extension) to an estimated overall survival of 30–40% at advanced stages. Unfortunately, the latter is the most common clinical presentation, and recent studies from the USA showed that the age-adjusted incidence rates for stage IV HN cancer have significantly increased by 26.1% over the last two decades.

Overall, 50% to 60% of these patients develop a loco-regional recurrence within 2 years. In addition, 20% to 30% develop distant metastases. Primary risk is about 2% to 4% per year, representing a rate of about 10% to 20% overall lifetime risk.

Recurrent HN cancer can form at or near the original site of the tumor (recurrent locoregional cancer) or at distant sites throughout the body (recurrent metastatic cancer). As with all forms of cancer, the outcomes for head and neck cancer recurrences can be significantly improved with early detection and prompt treatment; however, the prognosis overall remains poor.

Depending on the type and location of the HN cancer recurrence, an individualized treatment plan may include surgery, chemotherapy, or radiation therapy, or more frequently, a multimodal approach that incorporates some or all of the above. Despite the high rate of HN cancer failures, few reports have extensively investigated the specific problems linked to the diagnosis, staging, treatment, and prognosis of HN recurrence. The great majority of available studies focus on newly diagnosed HN cancer. Furthermore, specific problems must be considered when treating an HN cancer recurrence following a surgical failure vs. a radiotherapy-relapsed case and when the recurrence is limited to the primary site or to the neck. Another crucial point is the HN primary tumor site, not only in terms of risk of recurrence but also because of different therapeutic approaches required.

Altogether, I believe that a Special Issue on “Head and neck cancer recurrence: Diagnosis, Treatment and Prognosis” would represent an interesting and innovative work including potential contributions from scientists such as radiologists, pathologists, oncologists, head and neck surgeons, and radiotherapists, who are frequently involved in multispecialty teams of experts for the treatment of HN cancer recurrence.

Prof. Dr. Oreste Gallo
Guest Editor

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Keywords

  • head and neck cancer
  • recurrence
  • squamous cell carcinoma
  • HPV
  • larynx
  • oral cavity
  • oropharynx

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Published Papers (1 paper)

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Review

32 pages, 481 KB  
Review
Emerging and Investigational Systemic Therapies in Recurrent/Metastatic Head and Neck Cancer After Progression on Immunotherapy
by Freya F. Abraham and Ricklie Julian
Cancers 2025, 17(23), 3817; https://doi.org/10.3390/cancers17233817 - 28 Nov 2025
Viewed by 638
Abstract
Background: Recurrent and metastatic head and neck squamous cell carcinoma (R/M HNSCC) after immune checkpoint inhibitor (ICI) progression represents a major clinical challenge. Between 60 and 80% of patients develop resistance, and historical salvage regimens like cytotoxic chemotherapy or chemotherapy plus cetuximab rarely [...] Read more.
Background: Recurrent and metastatic head and neck squamous cell carcinoma (R/M HNSCC) after immune checkpoint inhibitor (ICI) progression represents a major clinical challenge. Between 60 and 80% of patients develop resistance, and historical salvage regimens like cytotoxic chemotherapy or chemotherapy plus cetuximab rarely extend median overall survival (mOS) beyond one year. Scope of Review: This review examines systemic therapies evaluated specifically in the post-ICI setting, emphasizing agents advancing to Phase II and III trials. Classes include chemotherapy combinations, ICI-based approaches, small-molecule targeted combinations, bispecific antibodies, antibody-drug conjugates (ADCs), and next-generation vaccines. Results: Promising signals have emerged across multiple therapeutic modalities. Targeted combination strategies have demonstrated encouraging response rates and survival outcomes in difficult-to-treat, PD-1-resistant disease. Antibody-based platforms, including antibody-drug conjugates and bispecific antibodies, continue to show consistent clinical activity across diverse patient populations, offering disease control and prolonged survival. Novel immunotherapies and therapeutic vaccines are also generating durable responses, particularly in biologically defined subgroups, highlighting the potential of immune-based precision treatments in R/M HNSCC. Conclusions: Comparative analysis highlights distinct advantages and limitations: chemotherapy ensures rapid shrinkage but poor durability; biomarker-driven small molecules achieve strong survival gains in narrow niches; ADCs and bispecifics offer balanced efficacy in unselected patients; and vaccine platforms deliver durable benefit in defined subsets. Together, these data signal a paradigm shift toward biomarker-guided, mechanism-driven strategies as the path to closing the post-ICI therapeutic gap in R/M HNSCC. Full article
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