Journal
SUPPORTIVE CARE IN CANCER
Volume 28, Issue 1, Pages 261-269Publisher
SPRINGER
DOI: 10.1007/s00520-019-04791-4
Keywords
Treatment-related symptoms; Minocycline; Inflammation; Radiation treatment; Head and neck cancer
Funding
- NCI NIH HHS [P30 CA016672, R01 CA026582, P01 CA124787] Funding Source: Medline
- The University of Texas MD Anderson Cancer Center [Institutional Research Grant] Funding Source: Medline
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Purpose Local/systemic symptoms during cancer therapy may be exacerbated by dysregulated inflammation and its downstream toxic effects. Minocycline can suppress proinflammatory cytokine release; therefore, we investigated its potential to reduce patient-reported symptom severity during radiotherapy (RT) for head and neck cancer (HNC). Methods Eligible patients for this blinded, placebo-controlled trial were adults with T0-3, N-any, and M0 HNC receiving single-modality RT. Participants were randomized 1:1 to either minocycline (200 mg/day) or placebo during RT. The primary endpoint was the area under the curve (AUC) of 5 prespecified symptoms (pain, fatigue, disturbed sleep, poor appetite, difficulty swallowing/chewing) during RT, assessed with the MD Anderson Symptom Inventory for HNC (MDASI-HN). Results We analyzed data from 20 evaluable patients per arm. Overall, 75% had oropharyngeal cancer and 78% were male. No grade 3+ adverse events potentially related to study medication were observed. Two minocycline patients required a feeding tube during RT vs 5 placebo patients (P = 0.21). The average daily AUC during RT for the 5 MDASI-HN symptoms was 3.1 (SD = 1.0) for minocycline and 3.7 (SD = 1.7) for placebo (P = 0.16); the 0.37 effect size was less than our 0.70 target. AUC comparisons for several individual symptoms and symptom interference favored minocycline but were not statistically significant. The greatest numerical differences occurred for systemic symptoms, larger toward treatment end, and in early post-RT recovery. Conclusions Minocycline was feasible, well tolerated, and achieved a positive signal toward reducing patient-reported symptom severity during RT for HNC, particularly for systemic symptoms. This justifies additional study and informs future trial design.
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