Mark Geyer, M.D.

@markgeyermd.bsky.social

Leukemia/cell therapy doc; Adolescent/Young Adult and ALL Leukemia Program Leader at Memorial Sloan Kettering Cancer Center. Indie rock and Boston sports fan. Opinions=my own. https://www.mskcc.org/cancer-care/doctors/mark-geyer. πŸ’–πŸ’œπŸ’™

Nosha Farhadfar updates us on ongoing Ph1 multicenter study of SENTI-202, a first-in-class, CD33 and/or FLT3 & not endomucin, selective off-the-shelf logic gated CAR NK cell therapy in 20 adults w/ R/R AML/MDS w/ FLT3 and/or CD33, max 3 prior tx (max 2 for MDS IB). No DLTs seen. (1/2) #ASH25.

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Peihua Lu back to the podium to discuss CTD402 (being developed in US by Imviva), a CD7-targeted CAR T-cell product for R/R T-ALL in pediatric/adult pts. Focused on 41 pts in RP2D cohort (400 million cells). 9/41 w/ ETP-ALL, 10/41 w/ prior HCT. 5 pts w/ G3+ CRS; 0 (!) w/ ICANS or HLH. #ASH25 (1/2)

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Robert Chiesa of Great Ormond Street presents on allogeneic CD7-targeted "base edited" CAR T-cells for R/R T-ALL (gene editing to disrupt TCRab/CD52/CD7). 11 children enrolled (9 treated) +2 adults; one infusion of CD7 CAR T-cells. 3 w/prior HCT. All w/active BM dz at lymphodepletion. (1/2) #ASh25

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Dr. Tingting Yang presents on sequential CD7-targeted CAR T-cell therapy followed by HCT without conditioning and GvHD ppx for 19 pts w/ R/R AML or T-ALL/LBL. aGVHD in 59% as below; 17/19 full donor chimerism at 1 month; 11/19 remain alive (10 in CR). Median PFS/OS 12.3/14.6 months. (1/2) #ASH25

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Dr. Peihua Lu presents on CD7 CAR T-cell therapy in 30 pediatric and adult pts w/ R/R T-ALL using NS7CAR (natural selected CD7 CAR product w/o gene editing), all with CNS-2/3 involvement. All received bridging. No manufacturing failure. Vein to vein time 2 weeks. (1/2) median#ASH25

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Dr. Quynh Long Khuong from UPenn presents on possible use of BB/ACEi to reduce cardiotoxicity in pediatric pts w/ AML receiving anthracycline-based induction using multicenter cohort. 908 pts studied; modest but significant reduction in LVEF reduction and mortality w/ BB. (1/2) #ASH25

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Dr. Quan Do of VCU Healt Systems presents on risk of heart failure (HF) post-idarubicin vs daunorubicin; structurally, ida expected to be less cardiotoxic, though clinical trials haven't suggested the same. TriNetX database used to assess HF rate w/in 10y of AML tx w/ dauno/ida in 7+3. (1/2) #ASH25

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Dr. Montesinos presents on "indolent" AML based on PETHEMA registry data. A subset of pts age β‰₯60y have longer-term survival (β‰₯9 mon) w/ best supportive care (BSC) alone (192/2506). ↓ WBC/PB+BM blasts/LDH, ↑albumin in indolent AML; PLTs/albumin/BM blasts remained sig in multivar analysis. #ASH25

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Dr. Douglas Tremblay from Mount Sinai presents on association of nadir bone marrow aspirate (BMA) characteristics w/ reinduction outcomes based on 233 pts from ECOG-ACRIN AML studies (E1900, E2906). Mostly intermediate/adverse risk. Median 15% reduction w/ reinduction, 52% CR w/ reind. (1/2) #ASH25

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Aman Wadhwa presents on risk factors for CNS relapse in 21,830 pts w/ de novo B-ALL across COG studies 2004-2019. Certain risk factors for BM relapse (age, female sex) did NOT predict CNS relapse. Cumulative incidence of CNS relapse 2.2%, median time 24.6 months. (1/2) #ASH25

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Thai Hoa Tran from CHU Sainte-Justine in Montreal reports on 196 pediatric/AYA pts (age <25y) w/ T-ALL harboring ABL-class fusions (~5% of T-ALL) from multinational retrospective study within Pointe di Legno consortium. 69% w/ NUP214::ABL1, 8% BCR::ABL1. 72% male. Median dx WBC 83. (1/2) #ASH25

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NicolΓ² Peccatori presents on PAX5r B-ALL in 162 pediatric pts treated on consecutive AIEOP-BFM ALL trials in Italy/Germany/Austria. 60 PAX5 fusion partners seen. Trend toward more IKZF1-plus, ↑WBC and NCI-HR. Analysis of prospectively identified pts (vs controls): no diff in MRD resp (1/2) #ASH25

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Dr. Ying Wang presents updated Ph1b/2 study data w/ MK-1045 (humanized bispecific IgG4 CD19xCD3 T-cell engager) in R/R B-ALL. Long-half life allows weekly IV admin (not IVCI). 75 pts treated, 10 dose levels; 73 efficacy-evaluable. CR/CRi/CRh in 55% (83% w/ dose β‰₯60mg). 9 w/ (1/2) #ASH25 prior blina

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Gowrishankar Palaniswamy presents on EfficientNetB1, an AI application reviewing blood smears/marrow (BM) studies in pts w/ ALL. Goal to distinguish benign lymphocytes from ALL and assign early pre-B, pre-B, and pro-B classification. Highly reproducible without loss over epochs. (1/2) #ASH25

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Matthew Wieduwilt presents follow-up data from Alliance (A041703) study for adults β‰₯60y w/ Ph-neg B-ALL. Single agent ino x1-2 cycles adapted to response ->3-4 cycles of blina. Summary of other frontline inotuzumab (ino)-based regimens below. 33 patients (median age 71, range 60-84). (1/2) #ASh25

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