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ESMO26: AI Is Oncology’s Tip of the Spear | KOL Pulse

Written by Brian Shields | Oct 30, 2026, 3:48:11 PM

Hematology-oncology just got a wake-up call, and pharma should be listening.

A JAMA analysis of OpenEvidence (Patel, Jena and colleagues; 952,008 verified U.S. clinicians and 271 million queries, Jan 2024–Jun 2026) put oncology at the top of specialty use of OpenEvidence, with a use ratio of 2.00 against its share of the U.S. physician workforce, ahead of internal medicine (1.88) and family medicine (1.80). Physicians reading the paper were quick to add the fine print: OpenEvidence supplied the data, three of the seven authors work for the company, and the study measures use, not accuracy.

That ranking shouldn’t surprise anyone who’s been paying attention. This field has led for years in online data creation, conference content and digital opinion leadership, and many of the earliest digital opinion leaders didn’t stay on the sidelines. They became industry and policy leaders: Nathan Pennell as SVP, Worldwide Head of Hematology/Oncology Medical Affairs at Bristol Myers Squibb; Jack West at Summit Therapeutics; Vinay Prasad as FDA CBER Director and Chief Medical and Scientific Officer before returning to UCSF. Their peers have followed into leadership across hematology and oncology.

Source: JAMA 2026; doi:10.1001/jama.2026.21868. Data supplied by OpenEvidence; the study measures use, not accuracy.

What we saw at ESMO 2026 was the next chapter: digital opinion leaders sharing insights, aggregating content and using AI to publish faster than pharma and its agency stacks can keep up.

The INTerpath-001 moment

Left: Georgina V. Long’s conclusions. Right: discussant Inge Marie Svane’s take-home messages. ESMO 2026 Presidential Symposium, LBA1. Photo posted by @dr_dirican.

That gap showed up clearly around the INTerpath-001 embargo breach for intismeran autogene, the Moderna–Merck individualized mRNA therapy given with pembrolizumab in resected stage IIB–IV melanoma. Investors moved first: Moderna shares fell as much as 25% intraday after the early release (STAT’s Adam Feuerstein put Thursday’s drop at 17%). Physicians scrambled to reconcile a strong clinical signal, RFS HR 0.58 and DMFS HR 0.62 (LBA1, ESMO 2026; OS immature; investigational), with a market that looked irrational from the clinic floor. Melanoma oncologist Mario Balsa called the breach out directly (our INTerpath-001 leak recap).

STAT’s Adam Feuerstein explained the selloff for the investors in the room:

NADINA vs the algorithm fight

NADINA event-free survival, neoadjuvant vs adjuvant. Sonja J. Witteveen, ESMO 2026, 2076RO. Photo posted by @YGaritaonaindia.

Meanwhile NADINA’s three-year update kept the perioperative IO debate alive: response-adapted neoadjuvant ipilimumab plus nivolumab versus surgery then adjuvant nivolumab, with 3-year EFS 72.9% vs 50.0% (HR 0.42; ESMO 2026 2076RO, data cut 30 Mar 2026). Neoadjuvant use is not on the FDA label. Digital opinion leaders, including surgeon Eric D. Whitman (@Melanoma_doctor), who disclosed that he took part in INTerpath-001, pushed the hard comparison problem: adjuvant RFS vs neoadjuvant EFS, what counts as standard in resectable stage III, and why a trial’s comparator shapes how the field reads a “win.”

You can’t run oncology algorithms without being able to predict the next readout. The future is murky. Digital opinion leaders are using AI to cut through that murk: what the data actually say, where crossover muddies survival, and how follow-on therapy looks in real practice.

When the claim goes too far

KRASCENDO-1 population and design, including the 91% / 9% control-arm split and “Treatment crossover not permitted,” from Benjamin Besse’s invited discussion. ESMO 2026, LBA5. Photo posted by @StephenVLiu.

There’s also the cost of overreach from the podium. In the KRASCENDO-1 discussion, Benjamin Besse showed a ChatGPT-generated slide titled “The Last Dance of KRAS G12C – The Farewell Tour of Sotorasib and Adagrasib.” Divarasib’s wins over the first-generation inhibitors are real: PFS HR 0.58 and OS HR 0.56 (LBA5, ESMO 2026; divarasib is investigational). But the control arm detail matters.

About 91% of patients in the control arm (156 of 171) were slated for sotorasib (Lumakras) and only about 9% (15 of 171) for adagrasib (Krazati), both of which hold FDA accelerated approval in previously treated KRAS G12C NSCLC, and crossover was not permitted, a point Besse himself criticized. Calling "The Last Dance" on both drugs may be a bigger claim than the data support.

The X community added the nuance as fast as the applause landed, from the control-arm split to the crossover design (Day 3 roundup):

What we learned

Three forces are colliding: the digital opinion leader, the AI toolkit (from OpenEvidence at the bedside to ChatGPT on the discussant slide), and AI as a channel to physicians. Together they will upend medical communications in pharma sooner than most teams expect.

Hematology-oncology is the tip of the spear. The future is fast.

What should you do?

The ESMO 2026 toolkit: 6,939 posts from 1,092 KOLs, 7.3M impressions.

Pharma and agencies: the floor and the feed moved faster than you at ESMO26. The next move is simple: follow KOL Pulse and work with us if you want to keep up.

If not, catch me if you can.

Sources: JAMA / OpenEvidence use study · ESMO 2026 hub · Days 1–2 · Day 3 · INTerpath-001 · NADINA · KRASCENDO-1 · DOL to industry and FDA roles