Evidence map›Paper›PMID 29177954›Full record

Trial reportCancer chemotherapy and pharmacology2018

Pharmacogenetic study of the impact of ABCB1 single-nucleotide polymorphisms on lenalidomide treatment outcomes in patients with multiple myeloma: results from a phase IV observational study and subsequent phase II clinical trial.

Ingrid Jakobsen Falk, Johan Lund, Henrik Gréen, Astrid Gruber, Evren Alici, Birgitta Lauri, Cecilie Blimark, Ulf-Henrik Mellqvist, Agneta Swedin, Karin Forsberg and 5 more

Open access · hybridAbstract readClinical Trial, Phase IIClinical Trial, Phase IVMulticenter Study
In one paragraph

Trial report in Cancer chemotherapy and pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 16 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 9 institutions in 1 country.

Ingrid Jakobsen FalkDivision of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden. Ingrid.jakobsen.falk@liu.se.ORCID 0000-0003-4450-0333
Johan LundUnit for Hematology, Department of Medicine, Karolinska Institute, Huddinge, Sweden.
Henrik GréenDivision of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
Astrid GruberUnit for Hematology, Department of Medicine, Karolinska Institute, Huddinge, Sweden.
Evren AliciUnit for Hematology, Department of Medicine, Karolinska Institute, Huddinge, Sweden.
Birgitta LauriDepartment of Internal Medicine, Sunderby Hospital, Luleå, Sweden.
Cecilie BlimarkHematology Department, Sahlgrenska University Hospital, Gothenburg, Sweden.
Ulf-Henrik MellqvistDivision for Haematology, Oncology and Lung, Department of Medicine, South Elvsborg Hospital, Borås, Sweden.
Agneta SwedinHematology Department, Skåne University Hospital, Lund, Sweden.
Karin ForsbergDepartment of Hematology, Norrland University Hospital, Umeå, Sweden.
Conny CarlssonDepartment of Internal Medicine, Hallands Hospital, Halmstad, Sweden.
Mats HardlingDepartment of Hematology, Uddevalla Hospital, Uddevalla, Sweden.
Lucia AhlbergDepartment of Hematology, Linköping University Hospital, Linköping, Sweden.
Kourosh LotfiDivision of Drug Research, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
Hareth NahiUnit for Hematology, Department of Medicine, Karolinska Institute, Huddinge, Sweden.
Karolinska Institutet · SELinköping University · SEHallands sjukhus Halmstad · SELinköping University Hospital · SESahlgrenska University Hospital · SESkåne University Hospital · SESödra Älvsborg Hospital · SESunderby sjukhus · SEUddevalla sjukhus · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDespite therapeutic advances, patients with multiple myeloma (MM) continue to experience disease relapse and treatment resistance. The gene ABCB1 encodes the drug transporter P-glycoprotein, which confers resistance through drug extrusion across the cell membrane. Lenalidomide (Len) is excreted mainly via the kidneys, and, given the expression of P-gp in the renal tubuli, single-nucleotide polymorphisms (SNPs) in the ABCB1 gene may influence Len plasma concentrations and, subsequently, the outcome of treatment. We, therefore, investigated the influence of ABCB1 genetic variants on Len treatment outcomes and adverse events (AEs).

methodsNinety patients with relapsed or refractory MM, who received the second-line Len plus dexamethasone in the Rev II trial, were genotyped for the ABCB1 SNPs 1199G>A (Ser400Asn, rs2229109), 1236C>T (silent, rs1128503), 2677G>T/A (Ala893Ser, rs2032582), and 3435C>T (silent, rs1045642) using pyrosequencing, and correlations to response parameters, outcomes, and AEs were investigated.

resultsNo significant associations were found between genotype and either best response rates or hematological AEs, and 1236C>T, 2677G>T or 3435C>T genotypes had no impact on survival. There was a trend towards increased time to progression (TTP) in patients carrying the 1199A variant, and a significant difference in TTP between genotypes in patients with standard-risk cytogenetics.

conclusionsOur findings show a limited influence of ABCB1 genotype on lenalidomide treatment efficacy and safety. The results suggest that 1199G>A may be a marker of TTP following Len treatment in standard-risk patients; however, larger studies are needed to validate and clarify the relationship.

Indexed as

Pharmacogenomic TestingPolymorphism, Single NucleotideAdultAgedAged, 80 and overAntineoplastic AgentsATP Binding Cassette Transporter, Subfamily BDisease ProgressionFemaleHumansLenalidomideMaleMiddle AgedMultiple MyelomaProspective StudiesSkin DiseasesABCB1 protein, humanAntineoplastic AgentsATP Binding Cassette Transporter, Subfamily BLenalidomideGenetic markersLenalidomideMultiple myelomaP-GlycoproteinSingle-nucleotide polymorphisms

Identifiers

PMID29177954
PMCPMC5754426
OpenAlexW2769562212

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.