Evidence map›Paper›PMID 35797471›Full record

ArticleBlood2022

Race, rituximab, and relapse in TTP.

Shruti Chaturvedi, Ana G Antun, Andrew M Farland, Ryan Woods, Ara Metjian, Yara A Park, Gustaaf de Ridder, Briana Gibson, Raj S Kasthuri, Darla K Liles and 20 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.8field-weighted citation impact, top 8% 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, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Unmet health care needs in immune thrombotic thrombocytopenic purpura survivors.Research and practice in thrombosis and haemostasis · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Challenges and opportunities in the long-term management of immune-mediated TTP.Hematology. American Society of Hematology. Education Program · 2025
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

30 authors at 20 institutions in 1 country.

Shruti ChaturvediDepartment of Medicine, Johns Hopkins University, Baltimore, MD.
Ana G AntunDepartment of Medicine, Emory University, Atlanta, GA.
Andrew M FarlandDepartment of Medicine, Wake Forest University, Winston-Salem, NC.
Ryan WoodsDepartment of Medicine, Wake Forest University, Winston-Salem, NC.
Ara MetjianDepartment of Medicine, University of Colorado, Denver, CO.ORCID 0000-0001-9890-8639
Yara A ParkDepartment of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.
Gustaaf de RidderDepartment of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.
Briana GibsonDepartment of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.
Raj S KasthuriDepartment of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC.ORCID 0000-0001-6672-3082
Darla K LilesDepartment of Medicine, East Carolina University, Greenville, NC.
Frank AkwaaDepartment of Medicine, University of Rochester, Rochester, NY.
Todd CloverSt Charles Healthcare, Bend, OR.
Lisa Baumann KreuzigerVersiti Blood Research Institute, Milwaukee, WI.ORCID 0000-0002-1171-0548
J Evan SadlerDepartment of Medicine, Washington University, St Louis, MO.
Meera SridharanDepartment of Medicine, Mayo Clinic, Rochester, MN.ORCID 0000-0001-7225-8228
Ronald S GoDepartment of Medicine, Mayo Clinic, Rochester, MN.
Keith R McCraeDepartment of Medicine, Cleveland Clinic, Cleveland, OH.ORCID 0000-0001-7340-475X
Harsh Vardhan UpretiDepartment of Medicine, Johns Hopkins University, Baltimore, MD.
Angela LiuDepartment of Medicine, Johns Hopkins University, Baltimore, MD.
Ming Y LimDepartment of Medicine, University of Utah, Salt Lake City, UT.ORCID 0000-0001-5208-3387
Radhika GangarajuDepartment of Medicine, University of Alabama at Birmingham.
X Long ZhengDepartment of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS.ORCID 0000-0003-1680-5295
Jay S RavalDepartment of Pathology, University of New Mexico, Albuquerque, NM.ORCID 0000-0001-9835-957X
Camila MasiasBaptist Health South Florida, Miami, FL.
Spero R CatalandDepartment of Medicine, The Ohio State University, Columbus, OH.
Andrew JohnsonDepartment of Laboratory Medicine and Pathology and.
Elizabeth DavisDepartment of Medicine, University of Minnesota, Minneapolis, MN; and.
Michael D EvansClinical & Translational Science Institute, University of Minnesota, Minneapolis, MN.ORCID 0000-0001-7449-3993
Marshall A MazepaDepartment of Medicine, University of Minnesota, Minneapolis, MN; and.ORCID 0000-0003-4294-3069
United States Thrombotic Microangiopathies Consortium
University of North Carolina at Chapel Hill · USJohns Hopkins University · USUniversity of Minnesota · USMayo Clinic in Arizona · USWake Forest University · USBaptist Health South Florida · USCleveland Clinic · USEast Carolina University · USEmory University · USEmory University Hospital · USMedical College of Wisconsin · USSt. Charles Medical Center · USThe Ohio State University · USUniversity of Alabama at Birmingham · USUniversity of Colorado Denver · USUniversity of Kansas Medical Center · USUniversity of New Mexico · USUniversity of Rochester · USUniversity of Utah · USWashington University in St. Louis · US

Funding

North Carolina Translational & Clinical Sciences Institute (NC TraCS)UL1TR001111 · NCATS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BUSE, JOHN BERNARD, CAREY, TIMOTHY S · 2013 to 2017
$43.9M
University of Minnesota Clinical and Translational Science Institute (UMN CTSI)UL1TR002494 · NCATS · UNIVERSITY OF MINNESOTA · PI BLAZAR, BRUCE R, WEISDORF, DANIEL J · 2018 to 2022
$34.9M
ADAMTS13 and Late Neurologic Morbidity after Thrombotic Thrombocytopenic PurpuraK99HL150594 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHATURVEDI, SHRUTI · 2020 to 2023
$907k
Clonal Hematopoiesis in a Biracial PopulationK08HL159290 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Radhika Gangaraju · 2022 to 2026
$820k
NCATS NIH HHS UL1 TR001111NCATS NIH HHS UL1 TR002494NHLBI NIH HHS K08 HL159290NHLBI NIH HHS K99 HL150594
6 · The paper itself

Abstract

Immune-mediated thrombotic thrombocytopenic purpura (iTTP) is characterized by recurring episodes of thrombotic microangiopathy, causing ischemic organ impairment. Black patients are overrepresented in iTTP cohorts in the United States, but racial disparities in iTTP outcome and response to therapy have not been studied. Using the United States Thrombotic Microangiopathies Consortium iTTP Registry, we evaluated the impact of race on mortality and relapse-free survival (RFS) in confirmed iTTP in the United States from 1995 to 2020. We separately examined the impact of rituximab therapy and presentation with newly diagnosed (de novo) or relapsed iTTP on RFS by race. A total of 645 participants with 1308 iTTP episodes were available for analysis. Acute iTTP mortality did not differ by race. When all episodes of iTTP were included, Black race was associated with shorter RFS (hazard ratio [HR], 1.60; 95% CI, 1.16-2.21); the addition of rituximab to corticosteroids improved RFS in White (HR, 0.37; 95% CI, 0.18-0.73) but not Black patients (HR, 0.96; 95% CI, 0.71-1.31). In de novo iTTP, rituximab delayed relapse, but Black patients had shorter RFS than White patients, regardless of treatment. In relapsed iTTP, rituximab significantly improved RFS in White but not Black patients. Race affects overall relapse risk and response to rituximab in iTTP. Black patients may require closer monitoring, earlier retreatment, and alternative immunosuppression after rituximab treatment. How race, racism, and social determinants of health contribute to the disparity in relapse risk in iTTP deserves further study.

Indexed as

Purpura, Thrombotic ThrombocytopenicADAMTS13 ProteinAdrenal Cortex HormonesHumansRecurrenceRituximabADAMTS13 ProteinAdrenal Cortex HormonesRituximab

Identifiers

PMID35797471
PMCPMC9710186
OpenAlexW4284893717

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.