Outcomes by Cardiac Stage in Patients With Newly Diagnosed AL Amyloidosis: Phase 3 ANDROMEDA Trial

Monique C Minnema, Angela Dispenzieri, Giampaolo Merlini, Raymond L Comenzo, Efstathios Kastritis, Ashutosh D Wechalekar, Martha Grogan, Ronald Witteles, Frederick L Ruberg, Mathew S Maurer, NamPhuong Tran, Xiang Qin, Sandra Y Vasey, Brendan M Weiss, Jessica Vermeulen, Arnaud Jaccard

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Patients with amyloid light chain amyloidosis and severe cardiac dysfunction have a poor prognosis. Treatment options that induce rapid and deep hematologic and organ responses, irrespective of cardiac involvement, are needed.

OBJECTIVES: The aim of this study was to evaluate the impact of baseline cardiac stage on efficacy and safety outcomes in the phase 3 ANDROMEDA trial.

METHODS: Rates of overall complete hematologic response and cardiac and renal response at 6 months and median major organ deterioration-progression-free survival and major organ deterioration-event-free survival were compared across cardiac stages (I, II, or IIIA) and treatments (daratumumab, bortezomib, cyclophosphamide, and dexamethasone [D-VCd] or bortezomib, cyclophosphamide, and dexamethasone [VCd]). Rates of adverse events (AEs) were summarized for patients with and without baseline cardiac involvement and by cardiac stage.

RESULTS: Median follow-up duration was 15.7 months. The proportions of stage I, II, and IIIA patients were 23.2%, 40.2%, and 36.6%. Across cardiac stages, hematologic and organ response rates were higher and major organ deterioration-progression-free survival and major organ deterioration-event-free survival were longer with D-VCd than VCd. AE rates were similar between treatments and by cardiac stage; serious AE rates were higher in patients with cardiac involvement and increased with increasing cardiac stage. The incidence of cardiac events was numerically greater with D-VCd vs VCd, but the rate of grade 3 or 4 events was similar. The exposure-adjusted incidence rate for cardiac events was lower with D-VCd than VCd (median exposure 13.4 and 5.3 months, respectively).

CONCLUSIONS: These findings demonstrate the efficacy of D-VCd over VCd in patients with newly diagnosed amyloid light chain amyloidosis across cardiac stages, thus supporting its use in patients with cardiac involvement. (NCT03201965).

Original languageEnglish
Pages (from-to)474-487
Number of pages14
JournalJ AM Coll Cardiol CardioOnc
Volume4
Issue number4
DOIs
Publication statusPublished - Nov 2022

Keywords

  • daratumumab
  • Mayo staging system

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