Carfilzomib, lenalidomide, and dexamethasone or lenalidomide alone as maintenance therapy after autologous stem-cell transplantation in patients with multiple myeloma (ATLAS): interim analysis of a randomised, open-label, phase 3 trial.

BACKGROUND

Lenalidomide is a cornerstone of maintenance therapy in patients with newly diagnosed multiple myeloma after autologous stem-cell transplantation. We aimed to compare the efficacy and safety of maintenance therapy with carfilzomib, lenalidomide, and dexamethasone versus lenalidomide alone in this patient population.

METHODS

This study is an interim analysis of ATLAS, which is an investigator-initiated, multicentre, open-label, randomised, phase 3 trial in 12 academic and clinical centres in the USA and Poland. Participants were aged 18 years or older with newly diagnosed multiple myeloma, completed any type of induction and had stable disease or better, autologous stem-cell transplantation within 100 days, initiated induction 12 months before enrolment, and an Eastern Cooperative Oncology Group performance status of 0 or 1. Patients were randomly assigned (1:1) using permuted blocks of sizes 4 and 6 and a web-based system to receive up to 36 cycles of carfilzomib, lenalidomide, and dexamethasone (28-day cycles of carfilzomib 20 mg/m

FINDINGS

Between June 10, 2016, and Oct 21, 2020, 180 patients were randomly assigned to receive either carfilzomib, lenalidomide, and dexamethasone (n=93) or lenalidomide alone (n=87; intention-to-treat population). The median age of patients was 59·0 years (IQR 49·0-63·0); 84 (47%) patients were female and 96 (53%) were male. With a median follow-up of 33·8 months (IQR 20·9-42·9), median progression-free survival was 59·1 months (95% CI 54·8-not estimable) in the carfilzomib, lenalidomide, and dexamethasone group versus 41·4 months (33·2-65·4) in the lenalidomide group (hazard ratio 0·51 [95% CI 0·31-0·86]; p=0·012). The most common grade 3 and 4 adverse events were neutropenia (44 [48%] in the carfilzomib, lenalidomide, and dexamethasone group vs 52 [60%] in the lenalidomide group), thrombocytopenia (12 [13%] vs six [7%]), and lower respiratory tract infections (seven [8%] vs one [1%]). Serious adverse events were reported in 28 (30%) patients in the carfilzomib, lenalidomide, and dexamethasone group and 19 (22%) in the lenalidomide group. One treatment-related adverse event led to death (respiratory failure due to severe pneumonia) in the carfilzomib, lenalidomide, and dexamethasone group.

INTERPRETATION

This interim analysis provides support for considering carfilzomib, lenalidomide, and dexamethasone therapy in patients with newly diagnosed multiple myeloma who completed any induction regimen followed by autologous stem-cell transplantation, which requires confirmation after longer follow-up of this ongoing phase 3 trial.

FUNDING

Amgen and Celgene (Bristol Myers Squibb).

Informations de copyright

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Déclaration de conflit d'intérêts

Declaration of interests DD reports speaker honoraria and participation in advisory boards for Amgen and Celgene (Bristol Myers Squibb) and had conference fees paid by Amgen. TW reports honoraria from AbbVie, Amgen, BeiGene, Celgene (Bristol Myers Squibb), Gilead, GlaxoSmithKline, Janssen-Cilag, Novartis, Pfizer, Roche, and Takeda; conference fees or travel support (or both) from AbbVie, Amgen, Celgene (Bristol Myers Squibb), Gilead, GlaxoSmithKline, Janssen-Cilag, Pfizer, Roche, and Takeda; and advisory board participation for AbbVie, Amgen, BeiGene, Celgene (Bristol Myers Squibb), Gilead, GlaxoSmithKline, Janssen-Cilag, Pfizer, Roche, Novartis, and Takeda. KJ reports grants paid to his institution and payment for expert testimony from Janssen; honoraria from Amgen, Celgene (Bristol Myers Squibb), GlaxoSmithKline, Janssen, Sandoz, and Takeda; financial support for attending meetings or travel support (or both) from Amgen, Celgene, and Janssen; and consulting and advisory board participation for Amgen, Celgene (Bristol Myers Squibb), Janssen, Sandoz, and Takeda. TK reports honoraria from AbbVie and Celgene (Bristol Myers Squibb) and financial support for attending meetings or travel support (or both) from Sanofi. AD-S reports honoraria for presentations and lectures from Amgen and Celgene (Bristol Myers Squibb); and financial support for attending meetings or travel support (or both) and advisory board participation from Celgene (Bristol Myers Squibb). KrG reports honoraria from Amgen and Celgene (Bristol Myers Squibb). AN reports fees for lectures and presentations from Amgen, Celgene (Bristol Myers Squibb), and Janssen; and financial support for attending meetings or travel support (or both) from Amgen, Celgene (Bristol Myers Squibb), Janssen, and Teva. BP reports grants or contracts from AbbVie, Amgen, Celgene (Bristol Myers Squibb), and Janssen; consultation fees from AbbVie, Roche, and Sandoz; honoraria for lectures and presentations from AbbVie, Amgen, Celgene (Bristol Myers Squibb), and Janssen; and financial support for attending meetings or travel support (or both) from AbbVie and Celgene (Bristol Myers Squibb). JR reports speaker honoraria and advisory board participation from Amgen, Celgene (Bristol Myers Squibb), and Janssen. LU-Z reports financial support for attending meetings or travel support (or both) from Janssen. AK reports payment for clinical trial participation from Janssen. JMZ reports grants from Celgene (Bristol Myers Squibb); financial support for attending meetings or travel support (or both) from AbbVie and Takeda; and participation on a data safety monitoring board or advisory board for Amgen, Celgene (Bristol Myers Squibb), Roche, and Takeda. JW reports personal and institutional grants from GlaxoSmithKline, Novartis, and Roche; and personal consulting, lecture and presentation fees, speaker bureaus, and educational events fees from AbbVie, Gilead, Novartis, Roche, and Takeda. DM reports lecture and presentation fees from Amgen and Janssen. TR reports research grants from Amgen and Celgene (Bristol Myers Squibb). OBL reports participation on an advisory board for MorphoSys. JAZ reports an institutional grant from Celgene (Bristol Myers Squibb); personal consulting fees from Alnylam, Celgene (Bristol Myers Squibb), Janssen, Prothena, and Regeneron; and participation on an advisory board for Takeda. KeG reports personal payment for the statistical design of this study and consulting fees related to other studies from the University of Chicago. BAD reports consulting fees from COTA Healthcare, Janssen, and Sanofi; payment or honoraria for lectures, presentations, speakers' bureaus, manuscript writing or educational events from MJH Life Sciences and Plexus Communications. AJJ reports consulting fees and honoraria for lectures and presentations from AbbVie, Amgen, Celgene (Bristol Myers Squibb), Gracell, GlaxoSmithKline, Janssen, and Sanofi-Aventis. All other authors declare no competing interests.