Hydroxychloroquine (HCQ) decreases the benefit of anti-PD-1 immune checkpoint blockade in tumor immunotherapy.

PLoS One · 2021 · PMC8238207 · PMID 34181666

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showed a trendno p-value reported

Injection of AZ alone showed a trend in reducing the beneficial effect of anti-PD-1 (375mm 3 vs 210mm 3 for anti-PD-1), although this did not achieve statistical significance.

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