ET-SPACE Whole-Body Infrared Hyperthermia in Patients With Advanced Solid Tumors

Condition(s) studied

Study summary

This ambispective observational cohort study will evaluate biological changes, palliative outcomes, and safety associated with ET-SPACE whole-body infrared hyperthermia in patients with advanced solid tumors. This noninvasive treatment uses infrared energy to raise body temperature in a controlled manner. Patients who received the treatment between January 1, 2022, and December 31, 2028, will be included. Earlier cases will be assessed retrospectively using medical records, while subsequently enrolled patients will be followed prospectively. Hyperthermia and all anticancer or supportive treatments will be provided according to routine clinical practice and will not be assigned by the study.

The study will collect patient and tumor characteristics, laboratory findings, anticancer and supportive treatments, hyperthermia parameters, adverse events, and follow-up outcomes. It will assess changes in metabolism-related indicators, immune and inflammatory function, nutritional status, quality of life, cancer-related pain, functional status, symptom burden, and tumor-specific palliative scores. The study will also explore factors associated with more favorable outcomes and clarify the potential supportive and palliative role of whole-body infrared hyperthermia in patients with advanced solid tumors.

Eligibility

Primary outcome measure(s)

• Mean Change From Baseline in Prognostic Nutritional Index at Week 4 — Baseline within 7 days before the first hyperthermia session and Week 4, plus or minus 7 days, after the first session.
  The Prognostic Nutritional Index will be calculated as serum albumin in grams per liter plus five multiplied by the absolute lymphocyte count in 10\^9 cells per liter. Higher values generally indicate better nutritional and immunological status.
• Mean Change From Baseline in Cancer Pain Intensity at Week 4 — Baseline within 7 days before the first hyperthermia session and Week 4, plus or minus 7 days, after the first session.
  Cancer-related pain will be assessed using an 11-point Numeric Rating Scale ranging from 0, indicating no pain, to 10, indicating the worst imaginable pain. The outcome will be calculated as the Week 4 score minus the baseline score.
• Mean Change From Baseline in EORTC QLQ-C30 Global Health Status Score at Week 12 — Baseline within 7 days before the first hyperthermia session and Week 12, plus or minus 14 days, after the first session.
  The EORTC QLQ-C30 global health status scale ranges from 0 to 100, with higher scores indicating better overall health and quality of life. This outcome evaluates the durability of quality-of-life changes.
• Mean Change From Baseline in Edmonton Symptom Assessment System-Revised Total Score at Week 4 — Baseline within 7 days before the first hyperthermia session and Week 4, plus or minus 7 days, after the first session.
  The Edmonton Symptom Assessment System-Revised evaluates nine common symptoms, including pain, fatigue, nausea, depression, anxiety, drowsiness, appetite, well-being, and shortness of breath. The total score ranges from 0 to 90, with higher scores indicating greater symptom burden.
• Change From Baseline in Eastern Cooperative Oncology Group Performance Status at Week 4 — Baseline within 7 days before the first hyperthermia session and Week 4, plus or minus 7 days, after the first session.
  Eastern Cooperative Oncology Group performance status ranges from 0 to 5, with higher grades indicating poorer functional status. Improvement is defined as a decrease of one or more grades, deterioration as an increase of one or more grades, and stability as no change.
• Mean Change From Baseline in Systemic Immune-Inflammation Index — Baseline within 7 days before the first hyperthermia session, 24 to 72 hours after the first session, and Week 4, plus or minus 7 days.
  The Systemic Immune-Inflammation Index will be calculated as the peripheral platelet count multiplied by the neutrophil count and divided by the lymphocyte count. The outcome will evaluate acute and short-term changes in systemic immune-inflammatory status.
• Mean Change From Baseline in Peripheral Blood CD4 to CD8 T-Cell Ratio — Baseline within 7 days before the first hyperthermia session, 24 to 72 hours after the first session, and Week 4, plus or minus 7 days.
  The ratio of CD4-positive T lymphocytes to CD8-positive T lymphocytes will be measured by flow cytometry when available. The outcome will evaluate changes in peripheral cellular immune status.

Trial sites (1)

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