General Rheumatology
Janet Pope Janetbirdope
3 months ago
CAR T
Which cells to target
What patients & what disease
When is right time
In vivo (new) ex vivo
Premeds immune suppression
What to use, ?if anything
Cons
Is it safe
?long term effectiveness
What is failure rate
ICANs and other side effects
#ACRBest #ACR25 @RheumNow #26S21 https://t.co/TUSJh1hrPr https://t.co/JiqYzgBmYP
Janet Pope Janetbirdope
3 months ago
Needle in a haystack
What T cell to target for #autoimmune diseases
T cell repetoires (TCR) not all are sequenced and many can exist to present antigens
Diff scales of approaches
Implications CAR-T
CD19
CD20
BCMA
Treg
HLAB27
etc!
#ACR25 @ACRheum @RheumNow
Alok Joglekar
#26S08 https://t.co/Qgw8Akz1xk
Akhil Sood MD, MS AkhilSoodMD
3 months ago
LB04: Another approach to CAR-T, CD20+/BCMA bispecific CAR-T in refractory proliferative LN:
🔹100% discontinued biologics & IS at follow-up
🔹Renal response ~78%
🔹CRS mostly Grade 1–2 (~70%); ≥Grade 3 AEs = transient & hematologic
@RheumNow #ACR25 https://t.co/oNK4wtLGYV
David Liew drdavidliew
3 months ago
While post-CAR-T CRS might be semi-familiar for rheumatologists, ICANS is a new concept to get our heads around, and one which is far from heterogenous.
@CarolineDiorio @ChildrensPhila in the #ACR25 BCRC pre-meeting @RheumNow https://t.co/qX2jKMG2oB
David Liew drdavidliew
3 months ago
@CarolineDiorio @ChildrensPhila @RheumNow Indeed, there are a lot of familiar HLH/MAS friends in the post-CAR-T CRS mix...
(indeed, rheum friends from many places)
@CarolineDiorio @ChildrensPhila in the #ACR25 BCRC pre-meeting @RheumNow https://t.co/OzWu3MV1FA
Akhil Sood MD, MS AkhilSoodMD
3 months ago
Another toxicity signal to watch in the CAR T space: LICATs
Abstract 1537 reports a new immune-related toxicity distinct from CRS or ICANS:
🔹Affects organs prev involved in autoimmune dx: skin (35%) and kidneys (22%)
🔹Mostly mild (Grade 1–2); 3 cases Grade 3
@RheumNow #ACR25 https://t.co/mtZh47nWtv
David Liew drdavidliew
3 months ago
I've always (very) simplistically considered post-CAR-T CRS and HLH/MAS in the same bucket, and there certainly are substantial similarities.
It raises the obvious question - can we borrow therapies?
@CarolineDiorio @ChildrensPhila in the #ACR25 BCRC pre-meeting @RheumNow https://t.co/2HkHxpl89u
David Liew drdavidliew
3 months ago
What dictates how severe CRS is following CAR-T?
(Often the critical question, and will especially be in the autoimmune space, where CAR-T is largely less time-critical)
@CarolineDiorio @ChildrensPhila in the #ACR25 BCRC pre-meeting @RheumNow https://t.co/u0w4lx7YVn
David Liew drdavidliew
3 months ago
@CarolineDiorio @ChildrensPhila eloquently told the #ACR25 BCRC pre-meeting about the lessons they've learned about CRS and ICANS, the major CAR-T toxicities.
Many questions still to answer, but they've also understood a lot we can learn from.
@RheumNow https://t.co/Jhk1eCLpD4
David Liew drdavidliew
3 months ago
CAR-T vs bispecific antibodies - what's the difference?
@andrew02114 @MGHCancerCenter with the heme-onc point of view in the #ACR25 BCRC @RheumNow https://t.co/7KJCfiQKWM
David Liew drdavidliew
3 months ago
CAR-T toxicity in hematology
(the things we have to look out for in rheumatology, as application of CAR-T potentially broadens)
@andrew02114 @MGHCancerCenter with the heme-onc point of view in the #ACR25 BCRC @RheumNow https://t.co/1YjadL7LCF
David Liew drdavidliew
3 months ago
Andrew Yee @andrew02114 of @MGHCancerCenter details out how quickly the CAR-T paradigm changed in myeloma/lymphoma - from newsworthy to routine. Now that much more about CAR-T has been worked out, will adoption be quicker in autoimmune disease? #ACR25 BCRC pre-meeting @RheumNow https://t.co/oNuPXCwWQ9
David Liew drdavidliew
3 months ago
Post-CAR-T myelopathy has been an issue in heme onc, and is still an unpredictable quantity without a clear cause. Will this be a problem for autoimmune CAR-T as we gain more experience? @CarolineDiorio @ChildrensPhila in the #ACR25 BCRC pre-meeting @RheumNow https://t.co/RhhdOiyEAX
Poster Hall