Diagnostic and treatment advances have revolutionized the landscape of immune-mediated thrombotic thrombocytopenic purpura (iTTP). With the widespread availability of ADAMTS13 testing and novel therapies, outcomes based primarily on platelet counts are no longer sufficient. Clinical definitions have recently been updated to reflect this progress. Given the efficacy of preemptive rituximab in preventing clinical relapses, experts now recommend every 3-month monitoring of ADAMTS13 in remission. With improved survival, long-term sequelae—including obesity, cardiovascular disease, chronic kidney disease, neuropsychiatric impairment, obstetric complications, and reduced life expectancy—are increasingly being recognized. This review explores the evolving landscape of long-term management in immune-mediated thrombotic thrombocytopenic purpura, highlighting current challenges in surveillance, immune suppression in the second line (and beyond), and emerging opportunities for recognition of long-term sequelae.

1.
Selvakumar
S
,
Liu
A
,
Chaturvedi
S
.
Immune thrombotic thrombocytopenic purpura: spotlight on long-term outcomes and survivorship
.
Front Med (Lausanne)
.
2023
;
10
:
1137019
.
2.
Coppo
P
,
Bubenheim
M
,
Benhamou
Y
, et al.
Caplacizumab use in immune-mediated thrombotic thrombocytopenic purpura: an international multicentre retrospective cohort study (The Capla 1000+ project)
.
EClinicalMedicine
.
2025
;
82
:
103168
.
3.
Cuker
A
,
Cataland
SR
,
Coppo
P
, et al.
Redefining outcomes in immune TTP: an international working group consensus report
.
Blood
.
2021
;
137
(
14
):
1855
-
1861
.
4.
Zheng
XL
,
Vesely
SK
,
Cataland
SR
, et al.
ISTH guidelines for treatment of thrombotic thrombocytopenic purpura
.
J Thromb Haemost
.
2020
;
18
(
10
):
2496
-
2502
.
5.
Akwaa
F
,
Antun
A
,
Cataland
SR
.
How I treat immune-mediated thrombotic thrombocytopenic purpura after hospital discharge
.
Blood
.
2022
;
140
(
5
):
438
-
444
.
6.
Page
EE
,
Kremer Hovinga
JA
,
Terrell
DR
,
Vesely
SK
,
George
JN
.
Thrombotic thrombocytopenic purpura: diagnostic criteria, clinical features, and long-term outcomes from 1995 through 2015
.
Blood Adv
.
2017
;
1
(
10
):
590
-
600
.
7.
Doyle
AJ
,
Stubbs
MJ
,
Dutt
T
, et al.
Long-term risk of relapse in immune-mediated thrombotic thrombocytopenic purpura and the role of anti-CD20 therapy
.
Blood
.
2023
;
141
(
3
):
285
-
294
.
8.
Chaturvedi
S
,
Antun
AG
,
Farland
AM
, et al.
;
United States Thrombotic Microangiopathies Consortium
.
Race, rituximab, and relapse in TTP
.
Blood
.
2022
;
140
(
12
):
1335
-
1344
.
9.
Jestin
M
,
Benhamou
Y
,
Schelpe
A-S
, et al
; French Thrombotic Microangiopathies Reference Center.
Preemptive rituximab prevents long-term relapses in immune-mediated thrombotic thrombocytopenic purpura
.
Blood
.
2018
;
132
(
20
):
2143
-
2153
.
10.
Hie
M
,
Gay
J
,
Galicier
L
, et al.
Preemptive rituximab infusions after remission efficiently prevent relapses in acquired thrombotic thrombocytopenic purpura
.
Blood
.
2014
;
124
(
2
):
204
-
210
.
11.
Westwood
JP
,
Webster
H
,
McGuckin
S
,
McDonald
V
,
Machin
SJ
,
Scully
M.
Rituximab for thrombotic thrombocytopenic purpura: benefit of early administration during acute episodes and use of prophylaxis to prevent relapse
.
J Thromb Haemost
.
2013
;
11
(
3
):
481
-
490
.
12.
Shin
J-S
,
Subhan
M-O
,
Cambridge
G
, et al.
Alterations in B- and circulating T-follicular helper cell subsets in immune thrombotic thrombocytopenic purpura
.
Blood Adv
.
2022
;
6
(
12
):
3792
-
3802
.
13.
Yin
J
,
Tian
H
,
Kong
D
, et al.
Bortezomib, a promising alternative for patients with refractory or relapsed thrombotic thrombocytopenic purpura after rituximab treatment
.
Br J Haematol
.
2022
;
199
(
4
):
619
-
622
.
14.
Patriquin
CJ
,
Thomas
MR
,
Dutt
T
, et al.
Bortezomib in the treatment of refractory thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2016
;
173
(
5
):
779
-
785
.
15.
Weisinger
J
,
Bouzid
R
,
Ranta
D
, et al.
Efficacy and safety of daratumumab in multiresistant immune-mediated thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2024
;
205
(
5
):
1951
-
1958
.
16.
Jansen
AJG
,
Rab
MAE
,
Te Boekhorst
PAW
,
Leebeek
FWG
.
Successful treatment with daratumumab for splenectomy refractory immune-mediated thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2024
;
205
(
6
):
2515
-
2518
.
17.
Aggarwal
A
,
White
D
,
Pavord
S
,
Thomas
W
,
Desborough
MJR
.
Daratumumab for refractory immune-mediated thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2023
;
202
(
2
):
429
-
433
.
18.
van den Berg
J
,
Kremer Hovinga
JA
,
Pfleger
C
, et al.
Daratumumab for immune thrombotic thrombocytopenic purpura
.
Blood Adv
.
2022
;
6
(
3
):
993
-
997
.
19.
Jalink
M
,
Jacobs
CF
,
Khwaja
J
, et al.
Daratumumab monotherapy in refractory warm autoimmune hemolytic anemia and cold agglutinin disease
.
Blood Adv
.
2024
;
8
(
11
):
2622
-
2634
.
20.
Cataland
SR
,
Jin
M
,
Lin
S
, et al.
Cyclosporin and plasma exchange in thrombotic thrombocytopenic purpura: long-term follow-up with serial analysis of ADAMTS13 activity
.
Br J Haematol
.
2007
;
139
(
3
):
486
-
493
.
21.
Fioredda
F
,
Cappelli
E
,
Mariani
A
, et al.
Thrombotic thrombocytopenic purpura and defective apoptosis due to CASP8/10 mutations: the role of mycophenolate mofetil
.
Blood Adv
.
2019
;
3
(
21
):
3432
-
3435
.
22.
Ahmad
HN
,
Thomas-Dewing
RR
,
Hunt
BJ
.
Mycophenolate mofetil in a case of relapsed, refractory thrombotic thrombocytopenic purpura
.
Eur J Haematol
.
2007
;
78
(
5
):
449
-
452
.
23.
Sayani
FA
,
Abrams
CS
.
How I treat refractory thrombotic thrombocytopenic purpura
.
Blood
.
2015
;
125
(
25
):
3860
-
3867
.
24.
Kappers-Klunne
MC
,
Wijermans
P
,
Fijnheer
R
, et al.
Splenectomy for the treatment of thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2005
;
130
(
5
):
768
-
776
.
25.
Dubois
L
,
Gray
DK
.
Case series: splenectomy: does it still play a role in the management of thrombotic thrombocytopenic purpura?
Can J Surg
.
2010
;
53
(
5
):
349
-
355
.
26.
Brodsky
MA
,
Sukumar
S
,
Selvakumar
S
, et al.
Major adverse cardiovascular events in survivors of immune-mediated thrombotic thrombocytopenic purpura
.
Am J Hematol
.
2021
;
96
(
12
):
1587
-
1594
.
27.
Chaturvedi
S
,
Yu
J
,
Brown
J
, et al.
Silent cerebral infarction during immune TTP remission: prevalence, predictors, and impact on cognition
.
Blood
.
2023
;
142
(
4
):
325
-
335
.
28.
Sukumar
S
,
Brodsky
M
,
Hussain
S
, et al.
Cardiovascular disease is a leading cause of mortality among TTP survivors in clinical remission
.
Blood Adv
.
2022
;
6
(
4
):
1264
-
1270
.
29.
Picod
A
,
Joly
BS
,
Veyradier
A
,
Coppo
P.
Thrombotic thrombocytopenic purpura: a missed cause in stroke prevention guidelines
.
Stroke
.
2025
;
56
(
4
):
1104
-
1105
.
30.
Lewis
QF
,
Lanneau
MS
,
Mathias
SD
,
Terrell
DR
,
Vesely
SK
,
George
JN
.
Long-term deficits in health-related quality of life after recovery from thrombotic thrombocytopenic purpura
.
Transfusion
.
2009
;
49
(
1
):
118
-
124
.
31.
Cataland
SR
,
Scully
MA
,
Paskavitz
J
, et al.
Evidence of persistent neurologic injury following thrombotic thrombocytopenic purpura
.
Am J Hematol
.
2011
;
86
(
1
):
87
-
89
.
32.
Chaturvedi
S
,
Oluwole
O
,
Cataland
S
,
McCrae
KR
.
Post-traumatic stress disorder and depression in survivors of thrombotic thrombocytopenic purpura
.
Thromb Res
.
2017
;
151
:
51
-
56
.
33.
Boothby
AB
,
Evans
MD
,
Yang
S
, et al.
Multicenter prospective pilot study identifying thrombomodulin as a potential biomarker for neurocognitive outcomes in immune thrombotic thrombocytopenic purpura
.
J Clin Med
.
2025
;
14
(
3
):
694
.
34.
Ferrari
B
,
Peyvandi
F.
How I treat thrombotic thrombocytopenic purpura in pregnancy
.
Blood
.
2020
;
136
(
19
):
2125
-
2132
.
35.
Brown
J
,
Potugari
B
,
Mazepa
MA
, et al.
Maternal and fetal outcomes of pregnancy occurring after a diagnosis of immune-mediated thrombotic thrombocytopenic purpura
.
Ann Hematol
.
2022
;
101
(
10
):
2159
-
2167
.
36.
Lim
MY
,
Abou-Ismail
MY
,
Branch
DW
.
Differentiating and managing rare thrombotic microangiopathies during pregnancy and postpartum
.
Obstet Gynecol
.
2023
;
141
(
1
):
85
-
108
.
37.
Odetola
O
,
Martin
KA
,
Dreyer
M
,
Rajan
P
,
Zakarija
A
,
Stein
BL
.
A safe and effective use of caplacizumab in pregnancy-related acquired thrombotic thrombocytopenic purpura
.
Br J Haematol
.
2023
;
202
(
4
):
879
-
882
.
38.
US Preventive Services Task Force
,
Davidson
KW
,
Barry
MJ
, et al.
Aspirin use to prevent preeclampsia and related morbidity and mortality: US Preventive Services Task Force recommendation statement
.
JAMA
.
2021
;
326
(
12
):
1186
-
1191
.
39.
Weisinger
J
,
Bouzid
R
,
Fadlallah
J
, et al.
Efficacy and safety of obinutuzumab in immune-mediated thrombotic thrombocytopenic purpura
.
Am J Hematol
.
2025
;
100
(
2
):
350
-
353
.
40.
Bendapudi
PK
,
Foy
BH
,
Mueller
SB
, et al.
Recombinant ADAMTS13 for immune thrombotic thrombocytopenic purpura
.
N Engl J Med
.
2024
;
390
(
18
):
1690
-
1698
.
You do not currently have access to this content.