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HEALTH PROFESSIONAL · SOURCE READING

Alectinib

Source: Non-Small Cell Lung Cancer Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: May 15, 2025 · Captured 2026-09-09.

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Context: Treatment of Progressive Stage IV, Relapsed, and Recurrent NSCLC / Treatment Options for Progressive Stage IV, Relapsed, and Recurrent NSCLC (Second-Line Therapy) / ALK-directed TKIs / ALK-directed TKIs after prior ALK TKI therapy

Evidence (alectinib):

A phase II open-label trial (NCT01871805) enrolled 87 patients with ALK-translocated stage IIIB/IV NSCLC who had disease progression after crizotinib treatment. The primary end point was objective response according to RECIST (version 1.1).[36]

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A phase II open-label trial (NCT01871805) enrolled 87 patients with ALK-translocated stage IIIB/IV NSCLC who had disease progression after crizotinib treatment. The primary end point was objective response according to RECIST (version 1.1).[36]

At the time of primary end point analysis, 48% of patients (95% CI, 36%–60%) had a confirmed partial response, and 32% had stable disease by blinded independent review. The median DOR was 13.5 months (95% CI, 6.7–NE). The estimated median PFS was 8.1 months (95% CI, 6.2–12.6).[36][Level of evidence C3]

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A phase II open-label trial (NCT01871805) enrolled 87 patients with ALK-translocated stage IIIB/IV NSCLC who had disease progression after crizotinib treatment. The primary end point was objective response according to RECIST (version 1.1).[36]

Sixteen patients had measurable CNS disease at baseline, of whom 11 had received prior radiation therapy. The CNS overall response rate was 75% (95% CI, 48%–93%), with 25% of the patients attaining complete response and 50% of the patients attaining partial response.

A phase II open-label trial (NCT01871805) enrolled 87 patients with ALK-translocated stage IIIB/IV NSCLC who had disease progression after crizotinib treatment. The primary end point was objective response according to RECIST (version 1.1).[36]

The most common side effects were grade 1 or 2 in severity; the most frequent adverse events, occurring in 23% to 36% of patients, were constipation, fatigue, myalgia, and peripheral edema. Dose interruption was needed in 36% of patients, and dose reduction occurred in 16%.

A second phase II, open-label trial enrolled 138 patients with stage IIIB/IV NSCLC and ALK variants who had disease progression while receiving crizotinib. The primary end point was objective response rate by independent central review.[37]

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A second phase II, open-label trial enrolled 138 patients with stage IIIB/IV NSCLC and ALK variants who had disease progression while receiving crizotinib. The primary end point was objective response rate by independent central review.[37]

The objective response rate was 50% (95% CI, 41%–59%). Median DOR was 11.2 months (95% CI, 9.6–NR). Median PFS was 8.9 months (95% CI, 5.6–11.3).[37][Level of evidence C3]

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A second phase II, open-label trial enrolled 138 patients with stage IIIB/IV NSCLC and ALK variants who had disease progression while receiving crizotinib. The primary end point was objective response rate by independent central review.[37]

CNS objective response rate in 35 patients with measurable CNS lesions was 57% (95% CI, 39%–74%).

A second phase II, open-label trial enrolled 138 patients with stage IIIB/IV NSCLC and ALK variants who had disease progression while receiving crizotinib. The primary end point was objective response rate by independent central review.[37]

Common adverse events that were mainly grade 1 or 2, which occurred in 25% to 33% of patients, were constipation, fatigue, and peripheral edema.

Studies cited in this source section

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Preserved source evidence · Not medical advice