Table 2 Development of cytokine and chemokine receptor inhibitors for COPD

From: Progress in the mechanism and targeted drug therapy for COPD

Drug

Mechanism/effect

Clinical progress

Reference

Canakinumab

Inhibition of IL-1β

A phase I/II RDBPCES of canakinumab (45 weeks), no statistical analysis provided for lung function changes

159

Tocilizumab

Inhibition of IL-6

Tocilizumab has efficacy in rheumatoid arthritis, but clinical trials in COPD require further study.

330

Infliximab

Inhibition of TNF-α

Infliximab (6 months) did not have clinical benefit but toxicity—higher rate of pneumonia and malignancies (NCT00056264)

331,332,333

etanercept

Inhibition of TNF-α

Etanercept (90 days) is no better than prednisone in the treatment of COPD deterioration(NCT00789997).

334

AZD4818

Inhibition of CCR1

AZD4818 (4-week treatment) provided no significant benefit to COPD patients (NCT00629239).

335

AZD2423

Inhibition of CCR1

AZD2423 (28-day treatment) in DBPCRT (NCT01215279); study has completed but statistical analysis not released.

336

Navarixin (MK-7123)

Inhibition of CXCR2

MK-7123 (6 months) in DBPCRT showed improvement in FEV1 (NCT01006616 and NCT00441701).

75,336

BIIL 284

Inhibition of LTB4 receptor

BIIL 284 (12 weeks of treatment) assessed the effects of lung function, exercise tolerance, sputum and safety in patients with COPD (NCT02249247); a 14 day study assessed the impact of biomarkers (NCT02249338)—the results of both studies have not been published. Other LTB4 receptor antagonists have not shown beneficial results

337

Zileuton

Inhibition of 5-LO

Zileuton (14 days) in DBPCRT reduced urinary LTE4 levels in hospitalised COPD patients with acute exacerbations but did not significantly in treatment (NCT00493974).

338