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Trials — ASCO GI 2026

The primary artifact of this vault: one Markdown file per trial / readout. ASCO GI 2026 is a clinical-readout meeting (Jan 8–10, 2026, Moscone West, San Francisco), so the unit of analysis is the trial — not the speaker, not the tool, not the company. Mirrors the ASCO 2026 trials template.

Status: Template + retrospective master index. Per-trial pages are deferred in May 2026 — priority is the ASCO main-meeting vault (asco-2026/) running live May 29 – Jun 2. The master index below captures the January readouts so forward cross-links from the May meeting (e.g., Rasolute-302 Plenary LBA5 builds on daraxonrasib Phase 1/2 here) resolve cleanly. Full per-trial pages can be backfilled from the ASCO Meeting Library on demand.

Per-trial template

Each trial file (e.g., breakwater-cohort3.md) follows the same schema as ASCO 2026. Copy and fill:

# <Trial acronym / name> — <Drug regimen, indication, line>

> **Abstract:** <abstract #, e.g., LBA438> · **Session:** <session name, date, time PT, hall> · **JCO 4_suppl DOI:** <10.1200/JCO.2026.44.4_suppl.XXX>

## At a glance

- **Sponsor:** <pharma / cooperative group>
- **PI / presenter:** <name, institution>
- **NCT ID:** <NCTxxxxxxxx>
- **Phase:** <1 / 2 / 3 / 1-2 / 2-3>
- **Design:** <arms, randomization, blinding>
- **N:** <enrolled / analyzed>
- **Primary endpoint(s):** <PFS / OS / ORR / DCR / DoR / pCR>
- **Comparator:** <SOC / placebo / active comparator>
- **Indication:** <tumor type, subtype, biomarker selection>
- **Line:** <neoadjuvant / adjuvant / 1L / 2L / 3L+ / perioperative>
- **Biomarker:** <KRAS-G12D, BRAF-V600E, HER2+, FGFR2-fusion, IDH1-R132, MSI-H, claudin 18.2+, ...>

## Headline result

<One paragraph. Numbers + HR + p-value. Cite JCO 4_suppl DOI for post-meeting data.>

## Mechanism / class

<Drug class, target, prior approvals if any. Cross-link to AACR mechanism sessions.>

## Discussant takeaway

<Named discussant + key framing. ASCO GI discussants set the field-level narrative
that propagates to ASCO main meeting in May.>

## Practice-changing?

<Yes / no / pending, with rationale: NCCN guideline implications, FDA filing path,
unmet need, prior SOC.>

## Cross-links

- **ASCO 2026 (May/Jun):** <follow-up Phase 3, OS confirmation, subgroup analysis>
- **AACR 2026 (Apr):** <related mechanism / biomarker session>
- **ESMO GI 2026 (Jul):** <EU-perspective follow-up>
- **JPM 2026:** <sponsor presentation week of Jan 12-15, same week as ASCO GI>
- **Prior ASCO GI:** <2024 / 2025 dose-finding or interim data>
- **Other ASCO GI 2026 trials:** <same class, same indication>

## Sources

- ASCO Meeting Library abstract: <URL>
- JCO 4_suppl publication: <DOI>
- Company press release: <URL>
- Trade-press recap: <OncLive / ASCO Post / VJOncology URL>
- ClinicalTrials.gov: <NCT URL>

Master trial index — by disease group

January 8–10, 2026 retrospective. Numbers below are sourced from ASCO Meeting Library abstracts (released on-day), JCO 4_suppl 2026, and post-meeting trade-press recaps (VJOncology, OncLive, ASCO Post, Targeted Oncology). Italicized results are pre-meeting toplines that should be reconciled against the on-day abstract where the per-trial page hasn't yet been written.

Colorectal cancer + anal (Day 1, Thu Jan 8)

Trial Sponsor Indication Phase Endpoint Result Practice-changing?
BREAKWATER cohort 3 Pfizer (Seagen) 1L BRAF-V600E mCRC 3 OS / PFS / ORR mOS ~30.3 vs 15.1 mo (HR ~0.55); ORR improved with EC+FOLFIRI vs FOLFIRI+bev; data trending positive but immature Yes — new SOC for BRAF-V600E 1L mCRC; neuropathy-free vs FOLFOXIRI alternative
CIRCULATE-NA (CCTG CRC.10 / NRG-GI008) NCI / CCTG / NRG Resected colon cancer, ctDNA-guided adjuvant 2/3 DFS Interim ctDNA assay performance + adjuvant-arm randomization update Confirmatory — ctDNA-guided adjuvant design path
ctDNA doubling time / presurgical ctDNA Multi-academic Resected colon cancer correlatives obs Recurrence timing ctDNA doubling time correlates with time to recurrence; presurgical ctDNA prognostic Biomarker — feeds adjuvant trial design
FOxTROT-2 UK MRC Elderly perioperative colon cancer 3 DFS / OS Elderly-population perioperative FOLFOX feasibility + outcomes TBD
OrigAMI-1 mCRC update J&J Amivantamab in MSS/EGFR-amp mCRC 1b/2 DoR / PFS Durability update post-AACR 2025 Read-through for EGFR×MET bispecific class in CRC
POD1UM-303 / EA2176 Incyte / ECOG-ACRIN Retifanlimab maintenance, anal cancer 3 OS Maintenance IO sequel in advanced SCCA Possible — first IO maintenance OS in anal

Pancreatic, neuroendocrine, hepatobiliary, small-bowel (Day 2, Fri Jan 9)

Trial Sponsor Indication Phase Endpoint Result Practice-changing?
Daraxonrasib Phase 1/2 + combo update Revolution Medicines 1L+ metastatic PDAC, RAS-mut 1/2 ORR / PFS / safety Monotherapy + chemo-combo expansion; sets up Rasolute-302 Plenary LBA5 at ASCO 2026 Foundation — pivotal Phase 3 OS readout at ASCO May 31
RMC-9805 (zoldonrasib) PDAC expansion Revolution Medicines KRAS-G12D PDAC 1 ORR / DCR / ctDNA clearance ORR 30%, DCR 80% in evaluable PDAC pts; 86% had >50% KRAS-G12D ctDNA decline; 39% achieved 100% clearance Yes (early) — first selective G12D inhibitor with PDAC activity
NETTER-2 / radioligand NET update Novartis 1L well-differentiated GEP-NET 3 PFS Lu-177 dotatate + LAR vs LAR follow-up Confirmatory — earlier radioligand use in NET
KEYNOTE-937 Merck Adjuvant HCC post-resection/ablation 3 RFS Negative — pembrolizumab failed to improve RFS vs placebo No — preserves SOC (active surveillance)
TACTICS-L / atezo-bev vs TACE Roche / academic Intermediate-stage HCC 3 Time to treatment failure Atezo-bev > TACE on TTTF Possible — challenges TACE as intermediate-HCC SOC
REFOCUS — lirafugratinib Relay Therapeutics FGFRi-naïve FGFR2-fusion CCA 2 ORR / DoR ~100 pt Phase 2; durable responses, favorable safety vs pemigatinib/futibatinib Yes (likely) — best-in-class FGFR2 selective TKI for CCA
IDH1-mutant CCA combination Servier / multiple IDH1-R132 mut CCA 2 ORR / PFS Ivosidenib + chemo / IO combinations follow-up Read-through for IDH1 second-generation strategies

Gastric / GEJ / esophageal (Day 3, Sat Jan 10)

Trial Sponsor Indication Phase Endpoint Result Practice-changing?
HERIZON-GEA-01 Jazz Pharmaceuticals 1L HER2+ locally advanced/metastatic G/GEJ adenocarcinoma 3 PFS / OS Both zanidatamab + chemo and zanidatamab + tislelizumab + chemo show statistically significant PFS improvement vs trastuzumab + chemo; IO-containing arm shows OS gain Yes — practice-changing in 1L HER2+ G/GEJ; FDA submission triggered Q1 2026
ILUSTRO follow-up Astellas Claudin 18.2+ G/GEJ 2 ORR / DoR Zolbetuximab monotherapy + combination durability update Confirmatory — extends zolbetuximab label rationale
CheckMate-577 long-term BMS Adjuvant nivolumab post-CRT esophageal/GEJ 3 DFS / OS Long-term DFS / OS update Confirmatory — extends established adjuvant nivo SOC
HER2 ADC esophageal Multiple (T-DXd, disitamab) HER2+ esophageal / GEJ ADC follow-up 2 ORR / DoR T-DXd + disitamab vedotin durability updates Class read-through

Cross-cutting themes

To synthesize across trials/ if/when populated:

  1. HER2+ G/GEJ — zanidatamab arrives. HERIZON-GEA-01 is the practice-changing readout of the meeting. Trastuzumab + chemo is no longer the SOC reference frame in 1L HER2+ G/GEJ. FDA filing motion + payer / NCCN follow-on through 2026.
  2. KRAS-class drugs become real in PDAC. Daraxonrasib (pan-RAS) Phase 1/2 update sets up Rasolute-302 Plenary at ASCO May 31. RMC-9805 / zoldonrasib (G12D-selective) PDAC activity is the next-class signal. Cross-link to AACR 2025/2026 RAS mechanism sessions and Revolution Medicines JPM 2026 presentation.
  3. BRAF-V600E mCRC moves to first-line. BREAKWATER cohort 3 (EC + FOLFIRI vs FOLFIRI + bev) is the new 1L benchmark, displacing FOLFOXIRI + bev for biomarker-selected patients. Neuropathy-free profile is the practical edge.
  4. FGFR2-fusion CCA — second-generation TKIs. Lirafugratinib (REFOCUS) vs pemigatinib / futibatinib SOC; selective FGFR2 sparing FGFR1 toxicity. Class differentiation by hyperphosphatemia / ocular AE profile.
  5. Adjuvant IO in HCC fails (KEYNOTE-937). Preserves SOC. Bears on the broader perioperative-IO theme threading ASCO 2026 (KEYNOTE-B15 bladder, PROTEUS prostate, LIBRETTO-432 lung, ALCHEMIST).
  6. ctDNA-guided adjuvant designs mature. CIRCULATE-NA + correlative ctDNA presurgical / doubling-time data continue the DYNAMIC / GALAXY thread; will feed next-cycle CRC adjuvant trial design.
  7. Anal cancer gets its first IO maintenance signal. POD1UM-303 / EA2176 retifanlimab — small but real for a long-neglected disease.

Status notes

  • Per-trial pages: deferred (priority is ASCO main meeting May 29 – Jun 2). Backfill from JCO 4_suppl 2026 + ASCO Meeting Library on demand.
  • Discussant identities: captured in program-notes.md where available from post-meeting recaps.
  • Forward cross-links to ASCO 2026 / AACR 2026: wired in the master index above; per-trial pages should resolve them when written.