Cohen, OC;
Sharpley, F;
Gillmore, JD;
Lachmann, HJ;
Sachchithanantham, S;
Mahmood, S;
Fontana, M;
... Wechalekar, AD; + view all
(2020)
Use of ixazomib, lenalidomide and dexamethasone in patients with relapsed amyloid light‐chain amyloidosis.
British Journal of Haematology
, 189
(4)
pp. 643-649.
10.1111/bjh.16401.
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Abstract
With improving outcomes in amyloid light‐chain (AL) amyloidosis, there is a need to study novel agents in this setting. We report outcomes of 40 patients with relapsed AL amyloidosis treated with ixazomib + lenalidomide + dexamethasone (IRd). Haematological responses were assessed on an intention‐to‐treat basis at three months: complete response (CR) – 8 (20·5%), very good partial response (VGPR) – 8 (20·5%), partial response (PR) – 7 (17·9%) and no response (NR) – 16 (41·0%). One patient had missing data. Six patients subsequently improved response. Best responses were: CR – 10 (25·6%), VGPR – 8 (20·5%), PR – 7 (17·9%), NR – 14 (35·9%). Cardiac and renal organ responses occurred in 5·6% and 13·3% respectively. Median progession‐free survival (PFS) was 17·0 months (95% CI 7·3–20·7 months), improving to 28·8 months (95% CI 20·6–37·0 months) in those achieving CR/VGPR. Median overall survival was 29·1 months (95% CI 24–33 months). Serious adverse events were seen in 14 (35·0%) patients inclusive of 15 admissions due to: infection (6/15, 40·0%), fluid overload (5/15, 33·3%), cardiac arrhythmia (2/15, 13·3%), renal dysfunction (1/15, 6·6%) and anaemia (1/15, 6·6%). In summary, IRd is an oral treatment option with a manageable toxicity profile leading to deep responses in 47% of patients with relapsed AL amyloidosis.
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