Bispecific antibodies are showing unprecedented single agent activity in relapsed/refractory MM. There are several phase I trials in this setting, let’s see at the data shared at #ASCO22 and #EHA2022 with Teclistamab , Elranatamab and REGN5458 targeting BCMA and…
….Talquetamab targeting GPRC5D. Here is a quick summary of the data #CARTSM #ASCO22_SZU #MedIQ22ASCO Strong work by #mmsm peeps!!
Teclistamab SC showed a response rate of 63%, MRD- 27% at 10-5 via NGS, CRS ~70% (grade 1/2), ICANS 3 % (grade 1/2),median PFS 11.3 months, median DoR 18.4 months, median follow-up 14 months. ascopubs.org/doi/abs/10.120… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022
Teclistamab SC combined with Daratumumab SC, weekly/q2 weekly dosing schedules, shows a response rate 78%, MRD- 27% at 10-5 via NGS, CRS ~61% (grade 1/2), median follow-up of 7.2 months. library.ehaweb.org/eha/2022/eha20… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022
In BCMA exposed/refractory MM (n=40), Teclistamab SC shows a response rate 52.5%, MRD- 17.5% at 10-5 via NGS, CRS ~70% (grade 1/2), 15/21 responders maintaining response at a median follow-up 11.8 months ascopubs.org/doi/abs/10.120… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022
Elranatamab SC shows a response rate 54%, CRS ~67% (grade 1/2), median PFS not reached at a median follow-up of 8.1 months ascopubs.org/doi/abs/10.120… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022
In BCMA exposed/refractory MM, Elranatamab SC shows a response rate ~60%, CRS ~59% (grade 1/2), ICANS in 3.6% (grade 1/2), median follow-up ~4 months. ascopubs.org/doi/abs/10.120… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022
Talquetamab SC showed a response rate of 70%/64% across 2 doses (405 mcg/kg, 800 mcg/kg), MRD- 27% at 10-5 via NGS, CRS (77%/80%; grade 3: 3%/0%), Skin and nail related AEs 83%/75% of pts (grade 1/2) dysgeusia (63%/57%)median follow-up of 11.7 months. ascopubs.org/doi/abs/10.120…
Talquetamab SC combined with Daratumumab SC across two doses with weekly/q2 weekly dosing schedules, shows a response rate 76.5%, MRD- 27% at 10-5 via NGS, CRS ~65% (grade 1/2), dysgeusia 57%, median follow-up 4 months library.ehaweb.org/eha/2022/eha20… #CARTSM #MedIQ22ASCO #EHA2022
REGN5458 IV q 2 week showed a response rate of 50.7% overall, 75% in 200-800 mg dose group, lowest CRS amongst the bispecific antibodies so far ~38.4% (grade 1/2), median follow-up of 3 months library.ehaweb.org/eha/2022/eha20… #CARTSM #ASCO22 #ASCO22_SZU #MedIQ22ASCO #EHA2022

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More from @szusmani

Dec 4, 2021
1/For this #ASH21 'Best of Abstracts' selection, I asked my @sloan_kettering #mmsm service team members for top 5 abstracts in different categories. Please follow the thread below for the #ASH21_MSKMM selections:
Read 7 tweets
Nov 9, 2020
1/7 Lots to unroll on #ASH20SU #ASH20 #mmsm abstracts, will do in several categories:

TOP TRANSLATIONAL
-ImmunoCell Study (ash.confex.com/ash/2020/webpr…)
-Discordance btwn IFE and MRD (ash.confex.com/ash/2020/webpr…)
@theMMRF @IMFmyeloma @Myeloma_Society @ASH_hematology
2/7 #ASH20SU #ASH20 #mmsm
-Immune ME Changes from MGUS/SMM to active MM (ash.confex.com/ash/2020/webpr…)
-PCL Genome/Transcriptome (ash.confex.com/ash/2020/webpr…)
-Resistance to BCMA Therapy (ash.confex.com/ash/2020/webpr…)
-Immunogenomic heterogeneity in MM (ash.confex.com/ash/2020/webpr…)
Read 7 tweets
Sep 10, 2020
The chromosome 1q21 story (1/10):
-Having extra copies of generally odd num. chromosomes constituents hyperdiploidy #mmsm , recognized as ‘HY’ in GEP based molecular classification.
-Having 3 copies is called ‘gain 1q21’
-Having >=4 copies is called ‘amplification of 1q21’.
The chromosome 1q21 story (2/10):
-Herve Avet-Louiseau identifies 1q21 ‘enhancement’ in human MM cell lines, primary MM cells and plasma cell leukemia (PMID: 9172003), Shaughnessy et al corroborate (PMID: 15472896).
- Gain/Amp ch. 1q21 first recognized as poor prognostic markers
The chromosome 1q21 story (3/10):
...in MM by Arkansas group in mid-2000s (PMID: 16188652, PMID: 16705089)
- Corroborated by other groups (PMID: 16995883, PMID: 17024118, PMID: 20537706, PMID: 21523726) in the context of pre-novel and doublet novel induction/transplant era.
Read 10 tweets

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