Evidence map›Paper›PMID 33594045›Full record

ArticleBlood cancer journal2021

Minimal residual disease negativity by next-generation flow cytometry is associated with improved organ response in AL amyloidosis.

Giovanni Palladini, Bruno Paiva, Ashutosh Wechalekar, Margherita Massa, Paolo Milani, Marta Lasa, Sriram Ravichandran, Isabel Krsnik, Marco Basset, Leire Burgos and 15 more

Open access · goldAbstract read
In one paragraph

Article in Blood cancer journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Pathogenesis and kidney prognosis of renal amyloidosis.Cellular and molecular life sciences : CMLS · 2026
    Review
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  13. Observational
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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

25 authors at 8 institutions in 3 countries.

Giovanni PalladiniAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy. giovanni.palladini@unipv.it.ORCID 0000-0001-5994-5138
Bruno PaivaClinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), IDISNA, CIBERONC CB16/12/00369 Pamplona, Pamplona, Spain.ORCID 0000-0003-1977-3815
Ashutosh WechalekarNational Amyloidosis Centre, University College London (Royal Free Campus), London, UK.
Margherita MassaBiochemistry, Biotechnology and Advanced Diagnostics Laboratory, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Paolo MilaniAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Marta LasaClinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), IDISNA, CIBERONC CB16/12/00369 Pamplona, Pamplona, Spain.
Sriram RavichandranNational Amyloidosis Centre, University College London (Royal Free Campus), London, UK.ORCID 0000-0001-5650-0088
Isabel KrsnikHospital Universitario Puerta del Hierro, Madrid, Spain.
Marco BassetAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Leire BurgosClinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), IDISNA, CIBERONC CB16/12/00369 Pamplona, Pamplona, Spain.
Mario NuvoloneAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Ramón LecumberriClinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), IDISNA, CIBERONC CB16/12/00369 Pamplona, Pamplona, Spain.
Andrea FoliAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Noemi PuigServicio General de Citometría, Universidad de Salamanca, IBSAL, and IBMCC CSIC-USAL, CIBERONC, Salamanca, Spain.
Melania Antonietta SestaAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Margherita BozzolaAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Pasquale CascinoAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Alice NevoneAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Jessica RipepiAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.
Pierpaolo BertiImmunohematology and Transfusion Medicine Unit, Department of Laboratories, IRCCS Bambino Gesù Children's Hospital, Rome, Italy.ORCID 0000-0003-0512-2704
Simona CasariniAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.ORCID 0000-0003-4730-7467
Ombretta AnnibaliHematology and Stem Cell Transplantation Unit, University Campus Bio-medico, Rome, Italy.
Alberto OrfaoServicio General de Citometría, Universidad de Salamanca, IBSAL, and IBMCC CSIC-USAL, CIBERONC, Salamanca, Spain.ORCID 0000-0002-0007-7230
Jesus San-MiguelClinica Universidad de Navarra, Centro de Investigacion Medica Aplicada (CIMA), IDISNA, CIBERONC CB16/12/00369 Pamplona, Pamplona, Spain.ORCID 0000-0002-9183-4857
Giampaolo MerliniAmyloidosis Research and Treatment Center, "Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo", Pavia, Italy.ORCID 0000-0001-7680-3254
University of Pavia · ITClinica Universidad de Navarra · ESIstituti di Ricovero e Cura a Carattere Scientifico · ITThe Royal Free Hospital · GBUniversidad de Salamanca · ESBambino Gesù Children's Hospital · ITHospital Universitario Puerta de Hierro Majadahonda · ESUniversità Campus Bio-Medico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Light chain (AL) amyloidosis is caused by a small B-cell clone producing light chains that form amyloid deposits and cause organ dysfunction. Chemotherapy aims at suppressing the production of the toxic light chain (LC) and restore organ function. However, even complete hematologic response (CR), defined as negative serum and urine immunofixation and normalized free LC ratio, does not always translate into organ response. Next-generation flow (NGF) cytometry is used to detect minimal residual disease (MRD) in multiple myeloma. We evaluated MRD by NGF in 92 AL amyloidosis patients in CR. Fifty-four percent had persistent MRD (median 0.03% abnormal plasma cells). There were no differences in baseline clinical variables in patients with or without detectable MRD. Undetectable MRD was associated with higher rates of renal (90% vs 62%, p = 0.006) and cardiac response (95% vs 75%, p = 0.023). Hematologic progression was more frequent in MRD positive (0 vs 25% at 1 year, p = 0.001). Altogether, NGF can detect MRD in approximately half the AL amyloidosis patients in CR, and persistent MRD can explain persistent organ dysfunction. Thus, this study supports testing MRD in CR patients, especially if not accompanied by organ response. In case MRD persists, further treatment could be considered, carefully balancing residual organ damage, patient frailty, and possible toxicity.

Indexed as

Flow CytometryAgedDisease-Free SurvivalDisease ProgressionFemaleHumansImmunoglobulin Light-chain AmyloidosisMaleMiddle AgedNeoplasm, ResidualPrognosis

Identifiers

PMID33594045
PMCPMC7887224
OpenAlexW3129677880

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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.