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KOL Pulse AI · #ESMO26 Post-Conference Edition · Conference Intelligence
ESMO 2026 GI: Virtual Attendee Network
Post-conference edition, data through November 3, 2026. 864 accounts classified from 529 curated posts on 27 gastrointestinal cancer trials (ESMO Congress 2026 · Madrid, Spain · October 23–27, 2026). Use it to follow up with the people who engaged with the GI data: click any of the top 20 KOLs to see exactly who amplified them - by category, region and country - and use the trial section to find the physicians who engaged with each trial during the meeting. The classification separates physicians, patient advocates and advocacy organizations, conference organizations, industry, and media. Pairs with the ESMO 2026 GI influencer network for who drove and who amplified the conversation; see also the ESMO 2026 conference coverage and the ESMO 2026 GI slide library.
767 of 864 Accounts Identified 135 Verified US Physicians 296 Int'l Physicians 49 Physician Countries
Interactive Retweeter Analysis
Click any KOL below to explore their retweeter network
See who amplified each top voice — broken down by category, region, and country. The donut charts and Top 30 grid update in real time as you switch KOLs.
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Top 20 KOLs ranked by total impressions
Category Breakdown
All Physicians by Region
Top Accounts
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Trial Interest
Which GI Cancer Trials Were Physicians Engaged With at ESMO 2026?
Physicians who posted or reposted #ESMO26 content on each gastrointestinal cancer trial. Trial names link to the KOL Pulse trial profile where one exists.
CLARITY-Gastric01118 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Oncology Brothers · Yakup Ergün · Daisuke Kotani · Erman Akkus · Dr Amol Akhade · Dr Rishabh Jain +110 more
MASTERPLAN118 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Erman Akkus · Shankar Siva · Jeff Ryckman · Lorenza Rimassa · Santhosh Ambika +110 more
HARMONi-GI1114 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Oncology Brothers · Yakup Ergün · Nicholas Hornstein · Daisuke Kotani · Erman Akkus · Dr Amol Akhade +106 more
SANO97 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Daisuke Kotani · Erman Akkus · Dr Amol Akhade · Dr Rishabh Jain · MV Chandrakanth +89 more
RASolute 30284 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Oncology Brothers · Erman Akkus · Dr Amol Akhade · Angela Lamarca · Grainne O'Kane · MV Chandrakanth +76 more
CheckMate 8HW61 physiciansArndt Vogel · Oncology Brothers · Yakup Ergün · Nicholas Hornstein · Daisuke Kotani · Erman Akkus · Dr Amol Akhade · Dr Rishabh Jain +53 more
HERIZON-GEA-0159 physiciansArndt Vogel · Oncology Brothers · Yakup Ergün · Nicholas Hornstein · Daisuke Kotani · Erman Akkus · Dr Amol Akhade · MV Chandrakanth +51 more
PRABITAS59 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Daisuke Kotani · Dr Amol Akhade · Dr. Cathy Eng · MV Chandrakanth · Lorenza Rimassa +51 more
IROCAS54 physiciansNieves Martinez Lago MD PhD · Yakup Ergün · Nicholas Hornstein · Dr Rishabh Jain · Jeff Ryckman · Paolo Ciracì · Dr Jérôme BARRIERE · Sharlene Gill +46 more
INCB161734 (zecdarasib)52 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Erman Akkus · Angela Lamarca · Grainne O'Kane · Dr. Cathy Eng · Lorenza Rimassa +44 more
ACTICCA-150 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Dr Amol Akhade · Angela Lamarca · Grainne O'Kane · Lorenza Rimassa · Santhosh Ambika +42 more
G-HOPE-00142 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Daisuke Kotani · Dr Amol Akhade · MV Chandrakanth · Jia (Jenny) Liu MD PhD · Lorenza Rimassa +34 more
KEYNOTE-97542 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Daisuke Kotani · Dr Amol Akhade · Jeff Ryckman · Lorenza Rimassa · Santhosh Ambika · Felipe Couñago PhD +34 more
AZUR-133 physiciansNieves Martinez Lago MD PhD · Yakup Ergün · Nicholas Hornstein · Erman Akkus · Dr Amol Akhade · Dr Rishabh Jain · Jeff Ryckman · Lorenza Rimassa +25 more
HRS-464231 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Angela Lamarca · Grainne O'Kane · Jeff Ryckman · Lorenza Rimassa · Santhosh Ambika +23 more
LEAP-01229 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Angela Lamarca · Grainne O'Kane · Dr. Cathy Eng · Lorenza Rimassa · Santhosh Ambika +21 more
AMPLIFY-7P28 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Angela Lamarca · Grainne O'Kane · Dr. Cathy Eng · Lorenza Rimassa · OsmanKostekMD +20 more
COMPANION-00227 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Dr Amol Akhade · Angela Lamarca · Grainne O'Kane · Lorenza Rimassa · Vilma P. Barcia MD +19 more
Temab-A (ABBV-400) mCRC22 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Dr. Cathy Eng · Lorenza Rimassa · Santhosh Ambika · Evelyn Wong · OsmanKostekMD · Nirmal Raut +14 more
ECLYPse21 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Dr Amol Akhade · Dr. Cathy Eng · Lorenza Rimassa · Santhosh Ambika · Evelyn Wong · Dr Akhil Santhosh MD DM MRCP(UK) +13 more
KC-WISE19 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Nicholas Hornstein · Lorenza Rimassa · Santhosh Ambika · Hiroki Osumi · Thanachai Sanlung · Eileen M O’Reilly +11 more
C-CAR03118 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Lorenza Rimassa · Santhosh Ambika · Nirmal Raut · Dr Akhil Santhosh MD DM MRCP(UK) · Ronan Hsieh +10 more
BRICKET16 physiciansNieves Martinez Lago MD PhD · Dr. Cathy Eng · Lorenza Rimassa · Paolo Ciracì · Santhosh Ambika · Evelyn Wong · Dr Akhil Santhosh MD DM MRCP(UK) · Vittorio Studiale +8 more
OPTIMUM (BTC)15 physiciansArndt Vogel · Grainne O'Kane · Lorenza Rimassa · Nirmal Raut · Dr Akhil Santhosh MD DM MRCP(UK) · Ronan Hsieh · Thanachai Sanlung · Florian Castet +7 more
Envafolimab + GEMOX (BTC)13 physiciansArndt Vogel · Nieves Martinez Lago MD PhD · Erman Akkus · Lorenza Rimassa · Santhosh Ambika · Nirmal Raut · Dr Akhil Santhosh MD DM MRCP(UK) · Thanachai Sanlung +5 more
DEWI12 physiciansArndt Vogel · Jeff Ryckman · Lorenza Rimassa · Santhosh Ambika · Vilma P. Barcia MD · Dra. María Natalia Gandur Quiroga · Erika Ruiz-Garcia · Dr Akhil Santhosh MD DM MRCP(UK) +4 more
EMT26 physiciansNieves Martinez Lago MD PhD · Dr Akhil Santhosh MD DM MRCP(UK) · Jun Gong · Ricardo Carvalho 🇧🇷 · Hiroki Osumi · Thanachai Sanlung
Understanding This Report
Questions This Report Answers

What does this data show?

A verified, classified map of the #ESMO26 gastrointestinal cancer conversation across 27 gastrointestinal cancer trials: 864 accounts from curated posts, including 431 physicians — 135 US physicians and 296 international colleagues, from 49 physician countries including the US (Spain, India, Turkey, Brazil lead outside the US). Institutional clusters are visible in the conference conversation: Memorial Sloan Kettering Cancer Center (6), Dana-Farber Cancer Institute (6), Mayo Clinic (4), Cleveland Clinic (4). Trial interest concentrates around CLARITY-Gastric01 (118 physicians), MASTERPLAN (118 physicians), HARMONi-GI1 (114 physicians). 35 patient advocates and advocacy organizations are active in the same conversation — and the bot and persona accounts that inflate raw follower metrics were identified and quarantined, so every physician here is bio-verified.

How can a KOL learn from this report?

Benchmark your own #ESMO26 gastrointestinal cancer presence against the 431 physicians mapped here: are your trials of interest among the crowded conversations (CLARITY-Gastric01, MASTERPLAN, HARMONi-GI1) or the quiet ones where a single voice still stands out? The category and region breakdowns show which patient advocacy voices and international colleagues were active in your space, and the trial section names the physicians - with their institutions - engaged with each trial.

What does a worked example of using this data look like?

An MSL following up after ESMO 2026: Memorial Sloan Kettering Cancer Center alone had 6 physicians in the #ESMO26 gastrointestinal cancer conversation. Cross-reference the trial section — CLARITY-Gastric01 (118 physicians), MASTERPLAN (118 physicians), HARMONi-GI1 (114 physicians) are the crowded conversations — and the follow-up plan writes itself: which physicians at which institutions engaged with which trials during the meeting, before a single follow-up is booked. A KOL can run the same play in reverse: find your institution's cluster, see which trials your colleagues converged on, and position your own commentary where the map shows white space.

How can medical affairs and pharma teams use this report?

As post-meeting follow-up planning grounded in this page's own numbers: the category and region breakdowns surface the 135 verified US physicians and their international colleagues, each with institution and trial interests; the classification keeps engagement lists clean by separating treating physicians from the 67 media accounts and industry voices; and the trial-interest chips let field teams match MSL briefings to the trials a physician already follows. KOL identification tells you who matters; mapping tells you how the community organizes around institutions and trials — which is what engagement sequencing actually needs. Influence-mapping practice guides note this also reduces redundant outreach: teams see who is already saturated and who is unengaged.

Why is social influence mapping important in oncology?

Oncology standards change with each congress readout, and physicians increasingly learn about readouts from each other online — surveys report over 70% of HCPs use digital channels weekly for medical information, and in a LiveWorld–Sermo survey of 206 US physicians, 41% said social media influences prescribing behavior. A conference map matters because meeting days are when oncology opinion forms: this dataset shows the communities that organized around the ESMO 2026 GI readouts — Memorial Sloan Kettering Cancer Center and Dana-Farber Cancer Institute clusters, 35 active patient advocacy organizations, and CLARITY-Gastric01-focused physician groups.

What is the difference between a KOL and a Digital Opinion Leader?

A traditional KOL earns influence through trials, publications, and guideline work; a Digital Opinion Leader earns it through digital reach — posts, threads, podcasts, and amplification. Many physicians on this page are both: trial investigators whose conference posts reach tens of thousands. This report measures the digital half directly and pairs it with verified identity, institution, and trial interests so the two kinds of influence can be read together.

How can I use this report with my favorite AI tool?

This page is built to be read by AI assistants (ChatGPT, Gemini, Claude, Perplexity). Paste the URL into your tool and ask questions this page can actually answer: “Which institutions had the most physicians in the #ESMO26 gastrointestinal cancer conversation?”, “Which gastrointestinal cancer trials were ESMO 2026 physicians most engaged with?”, “Which physicians engaged with CLARITY-Gastric01 at the meeting?”, “List the patient advocacy organizations active around the ESMO 2026 GI readouts.” For who-influences-whom questions (a KOL’s amplifier network, which US physicians amplify a given voice), use the companion ESMO 2026 GI influencer network. Cite kolpulse.com when you share the answers.