Hem/Onc Fellowship Applicant | BMT fellow @Stanford | Ex- President National Resident Forum | Ex- Intern @HowardU | Ex- Polio Officer @WHOPakistan

Joined January 2011
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Alhamdulliah, officially graduated from the Internal Medicine Residency training from Northwest Healthcare Tucson. It was a journey that happened with support of my family, friends, colleagues, and my great mentors. #Graduation #Internalmedicine #ACGME
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Muhammad Samsoor Zarak retweeted
‼️ #EHA2026 simultaneous publication by @mattwilson2287 et al:  High-Dose Methotrexate as CNS Prophylaxis in Ultra High-Risk Large B-Cell Lymphoma: An International Analysis of 1,923 Patients Read the full article: bit.ly/4efwgue
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Muhammad Samsoor Zarak retweeted
frontMIND: a new first-line regimen for high-risk DLBCL? The phase III frontMIND trial (Lenz et al., Lancet) adds tafasitamab (an Fc-enhanced anti-CD19 antibody) lenalidomide to R-CHOP, in 899 patients with high-intermediate or high-risk DLBCL/HGBL (IPI 3-5 or aaIPI 2-3). The results: → Improved PFS: HR 0.75 (0.59-0.96), p=0.019 — 2-year PFS 71% vs 63% ( 8.2 points) → Benefit driven by the ABC subtype (HR 0.59), more modest in GCB (0.69, CI crossing 1) → OS still immature, no significant difference (HR 0.85) → The price to pay: more hematologic and infectious toxicity, treatment-related mortality 6% vs 4% (partly COVID-related, as the trial ran during the pandemic) The comparison with POLARIX is tempting, but should be handled with caution: no head-to-head data, and populations that resemble each other without overlapping — frontMIND enrolled higher-risk patients (IPI 3-5, 31% ECOG 2, vs IPI 2-5 and 16% in POLARIX). At their core, the two stories echo each other: near-identical PFS HRs (0.75 vs 0.73), absolute benefit of the same magnitude, a clear signal in ABC, nothing convincing in GCB, and no demonstrated overall survival benefit. That said, pola-R-CHP replaces vincristine without meaningfully adding to the toxicity profile, whereas tafa-len-R-CHOP adds two drugs and a weekly tafasitamab schedule, at the cost of what appears to be higher toxicity. A question common to both trials: in the absence of an overall survival benefit, what place in our treatment algorithms? #DLBCL #lymphoma #hematology thelancet.com/journals/lance…
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Muhammad Samsoor Zarak retweeted
The CD123-directed antibody-drug conjugate pivekimab sunirine-pvzy is now approved for adults with blastic plasmacytoid dendritic cell neoplasm (BPDCN). A meaningful advance in a rare leukemia subtype, with important contributions from Dr. Naveen Pemmaraju and Dr. Naval Daver. spr.ly/6012B8di3k @doctorpemm @Daver_Leukemia #EndCancer
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Muhammad Samsoor Zarak retweeted
Excited to share our new paper on patient-reported time toxicity with bispecific antibodies (mosun, glofi, epco) in R/R FL and DLBCL @OncJournal. A few key points from our study, including impacts on time tox research & patient-centered #lymsm care: 🧵 academic.oup.com/oncolo/adva…
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Muhammad Samsoor Zarak retweeted
CD3xCD20 BsAb secondary CNS lymphoma (CUBIC Consortium) - 28 pts, most glofi, 64% active CNS dx, 64% prior CAR - active CNS: ORR 56% (CR 33%), CNS ORR 65% (CR 35%), 6-mo PFS 43% (CNS-PFS 53%) - no PD among pts achieving CR - responses in LM dx & post-CAR - 25% ICANS (incl G3-4) Encouraging activity as monotherapy (combo regimens no better). #lymsm nature.com/articles/s41408-0…
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This is interesting, so CNS prophylaxis didn’t reduce the relapse in the cohort.
Important EHA2026 data in UHR LBCL 👇 In this large international retrospective cohort of 1,923 ultra–high-risk LBCL pts, HD-MTX did not reduce CNS relapse. What makes this clinically relevant: baseline imbalance reflects real-world practice—HD-MTX was preferentially used in pts with renal/adrenal, testicular, ≥3 extranodal sites, and many also received IT MTX during chemo (~50% in HD-MTX arm). Yet, despite this intensified “current CNS prophylaxis strategy,” CNS relapse remained similar: Any CNSr: 9.3% vs 8.1% Isolated CNSr: 5.9% vs 5.7% This challenges the routine reflex of adding HD-MTX for CNS prophylaxis in UHR LBCL. The next key question: Will this still hold true in the Pola-R-CHP era? although POLARIX - did not show lower CNS relapse #EHA2026 #Lymphoma #DLBCL #CNSRelapse #HDMTX #PolaRCHP #Hematology @Charanpreet_14 @DrGPrakash @EHA_Hematology
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Muhammad Samsoor Zarak retweeted
Review series on clonal hematopoiesis: how should clinicians approach clonal hematopoiesis in practice? This review outlines current strategies for risk assessment, monitoring, and clinical decision-making. haematologica.org/article/vi…
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I don’t tweet much so I’ll keep this simple We are looking to recruit 1-2 new postdoctoral fellows, to study human hematopoietic development, from both basic and translational perspectives, using iPSCs. Please reach out via email for more details if interested!
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Excited to attend Stanford’s BMT & CAR-T Symposium and learning from experts across the country. The symposium provided valuable insights into the current landscape and future developments in malignant hematology. #MaligHem #Lymphoma #MM #Leukemia #CART #ASCT #AlloCART #ORCA-T
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Good luck to everyone waiting on their Internal Medicine match results! You have survived the endless UWorld blocks, and the gauntlet of interviews. Whether you end up matching or not, remember that your hard work have already proven you are ready for this. #Match #Match2026
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Congratulations to Dr. Negrin on the life time achievement award.
Dr. Robert Negrin is being honored for a career of impact. His work translating research into patient care has earned him lifetime achievement awards, new leadership roles, and renewed NIH funding for the BMT-CT program at Stanford. Read more: medicine.stanford.edu/conten…
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Prayers for Jamaica!
🚨 BREAKING: HOSPITALS DESTROYED IN JAMAICA 🚨 Medical facilities in Black River, Jamaica have reportedly been destroyed, according to a Jamaican Senator speaking to NBC. Amid Hurricane Melissa’s catastrophic landfall, emergency services are overwhelmed, and access to care is severely limited. 💔 Patients and medical staff are seeking shelter as power outages cripple operations. 🇯🇲 The situation is described as “beyond critical.” #Jamaica #HurricaneMelissa #BreakingNews #DisasterAlert #CaribbeanCrisis #PrayForJamaica #HurricaneUpdate #ClimateEmergency
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I am excited to share that I have cleared American Board of Internal Medicine. I am thankful to everyone for their support in this journey that started from my hometown Zhob and transitioned to being a Diplomat in ABIM. #ABIM #Internalmedicine
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Such a tragic loss, prayers for the family.
Inna lillahi wa inna ilayhi raji’un. إِنَّا لِلَّٰهِ وَإِنَّا إِلَيْهِ رَاجِعُونَ. It is with heavy hearts that we announce the passing of Dr. Maryam Shaukat tonight. Although the liver had been secured for the transplant, Allah had other plans for her.
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Good luck to all the applicants for the residency match 2026. Your hard work, consistency, and dedication will pay off. #Match2026 #Residency #ACGME
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Muhammad Samsoor Zarak retweeted
Olanzapine, when tolerated (I usually dose escalate from 2.5 mg) should be standard for cachexia, appetite, nausea. Still seeing megace, mirtazapine recommended despite essentially no evidence. We need more supportive onc education for our hem inc practitioners and fellows.
Olanzapine for Anorexia in Patients With Incurable Cancer and Cachexia (OlAnCa): A Double-Blind, Placebo-Controlled, Randomized Clinical Trial ⁦@realbowtiedoc⁩ ⁦@crisbergerot⁩ ⁦@OncoAlertjnccn.org/view/journals/jncc…
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Muhammad Samsoor Zarak retweeted
🚨 ESMO 2025 Lymphoma Guidelines - Less chemo ➝ More precision. A complete update across 7 lymphoma subtypes 🧬 🔵 DLBCL • Pola-CHP (IPI ≥2, fit <80 yrs) • CAR-T in early relapse • Bispecifics in ≥2L r/r 🌿 FL • ISRT (24 Gy) curative in stage I/II • Watch & wait in low-burden disease • CAR-T, bispecifics, tazemetostat in later lines 🌀 MCL • BTKi-integrated induction (preferred) • MRD-guided ASCT omission if uMRD by clonoSEQ • CAR-T & pirtobrutinib post-BTKi 🔥 HL • BrECADD (≤60 yrs) frontline • Nivo-AVD (60–80 yrs) frontline • BV or PD-1 inhibitor (Nivo/Pembro) in r/r 🧠 PCNSL • MATRix induction (HD-MTX based) • Thiotepa-ASCT consolidation • Avoid WBRT in elderly • Low-dose WBRT in select CR patients 🍋 MZL • H. pylori eradication (gastric EMZL) • ISRT for localized • Immunotherapy or BR in advanced/relapsed ⚡ PTCL • BV-CHP = standard for ALK– ALCL • CHOEP alternative • ASCT consolidation in responding PTCL NOS/TFHL ✨ Takeaway: Shift towards chemo-free, precision, & immunotherapy-driven care. 📓Eyre TA, Cwynarski K, d’Amore F, et al. Ann Oncol 2025. 🔗DOI: doi.org/10.1016/j.annonc.202… #OncoTwitter #MedTwitter #Lymphoma #Immunotherapy @OncoAlert @myesmo @asco
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Excited to join the GME diversity committee of @StanfordMed. It’s a pleasure to connect with fellows and residents with diverse backgrounds, practicing medicine. @StanfordODME @LahiaYemaneMD
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This is exciting news
Results from a study open new avenues for discovering approaches to enhance the antitumor activity of CAR NK cell therapies against multiple cancer types via a comprehensive CRISPR discovery platform optimized for primary human NK cells. Read more: spr.ly/6018fxaTs @lab_rezvani #EndCancer
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