OnCo

Catalyst calendar

26 upcoming events across 18 companies: 7 with a confirmed date, the rest editorial estimates that can slip by quarters. Filter by company or quarter, then download the selection as an .ics file or subscribe to the full feed.

26 catalystsSubscribe
  1. Q3 2026 2 events

    18 September 2026Regulatory decisionconfirmed
    FDA decision: zidesamtinib in TKI-pretreated ROS1-positive NSCLC

    PDUFA target action date stated by Nuvalent when the FDA accepted the new drug application. Nuvalent's first potential approval.

    Source
    23 September 2026Advisory committeeconfirmed
    FDA advisory committee: Galleri multi-cancer early detection test (PMA)

    Molecular and Clinical Genetics Panel of the Medical Devices Advisory Committee reviews GRAIL's premarket approval application. The first FDA-level judgement on a multi-cancer blood screening test.

    Source
  2. Q4 2026 8 events

    23 October 2026Congressconfirmed
    ESMO Congress 2026, Madrid (23–27 October)

    Europe's largest oncology congress. Watch for: TROPION-Breast05, first-line ADC + IO data, late-breaking radioligand and bispecific ADC results.

    Source
    8 December 2026Congressconfirmed
    San Antonio Breast Cancer Symposium 2026 (8–11 December)

    The breast cancer congress. Post-neoadjuvant TNBC ADC trials (ASCENT-05, TROPION-Breast03) and sac-TMT first-line TNBC data are candidates for presentation here or at ESMO.

    Source
    12 December 2026Congressconfirmed
    ASH Annual Meeting 2026, New Orleans (12–15 December)

    Haematology's main congress: CAR-T, bispecifics, menin inhibitors, BCL-2 combinations.

    Source
    Q4 2026Deal closingexpected
    Tempus completes the acquisition of Personalis

    All-stock deal at $16.25 per share announced July 2026; the companies guided to a close in late 2026 or early 2027.

    Source
    Q4 2026Expected readoutexpected
    TROPION-Breast05: Dato-DXd ± durvalumab vs pembrolizumab + chemotherapy, first-line PD-L1+ TNBC

    Primary completion per registry falls in 2026; timing of topline is our estimate. Would complete the ADC + IO first-line picture alongside ASCENT-04.

    Source
    Q4 2026Expected readoutexpected
    INTerpath-001 full data: intismeran autogene + pembrolizumab, adjuvant melanoma

    Topline positive 19 August 2026; hazard ratios and curves expected at a late-2026 congress (ESMO or SMR), with regulatory filings to follow.

    Source
    Q4 2026Policyexpected
    NHS England decision on Galleri rollout after full NHS-Galleri results

    Full results presented at ASCO 2026 (primary stage III–IV endpoint not met; stage IV reduction reported). NHS England said it would wait for final results before any rollout decision; timing of a decision is not announced.

    Source
    2026Regulatory decisionexpected
    FDA decision on Pluvicto in metastatic hormone-sensitive prostate cancer (PSMAddition)

    Novartis announced the supplemental filing after the PSMAddition results in 2025. No action date has been disclosed; the year is our estimate.

    Source
  3. Q1 2027 1 event

    Q1 2027Expected readoutexpected
    RASolute 302: daraxonrasib vs chemotherapy, second-line metastatic pancreatic cancer

    Fully enrolled; event-driven OS endpoint. Sponsor has guided to a 2026–27 readout. The first pivotal test of a pan-RAS inhibitor.

    Source
  4. Q2 2027 3 events

    2 April 2027Congressconfirmed
    AACR Annual Meeting 2027, Orlando (2–7 April)

    Early science and first-in-human data: next-generation ADC payloads, degraders, in vivo CAR-T.

    Source
    4 June 2027Congressconfirmed
    ASCO Annual Meeting 2027, Chicago (4–8 June)

    Where most practice-changing phase 3 trials are first presented.

    Source
    Q2 2027Expected readoutexpected
    IZABRIGHT-Breast01: iza-bren vs chemotherapy, first-line TNBC (PD-(L)1 ineligible)

    Global first-line trial of the EGFR×HER3 bispecific ADC; timing is an estimate from enrolment start (2025).

    Source
  5. Q4 2027 12 events

    Q4 2027Expected readoutexpected
    TROPION-Breast03: Dato-DXd ± durvalumab, post-neoadjuvant residual TNBC

    Registry estimated primary completion 20 September 2027; topline may lag.

    Source
    2027Label or clearance decisionexpected
    FDA decision on the Galleri multi-cancer early detection test (premarket approval)

    Follows the 23 September 2026 advisory committee. PMA decisions typically come months after the panel; no date has been announced.

    Source
    2027Expected readoutexpected
    HARMONi-3: ivonescimab plus chemotherapy versus pembrolizumab plus chemotherapy, first-line NSCLC

    The first head-to-head test of the PD-1 x VEGF bispecific against pembrolizumab in a Western population. Timing is our estimate from the registry record; the sponsor has not given a date.

    Source
    2027Expected readoutexpected
    SUNRAY-01: olomorasib plus pembrolizumab, first-line KRAS G12C NSCLC

    Phase 3 in first-line KRAS G12C-mutant NSCLC. Timing is a registry-based estimate.

    Source
    2027Expected readoutexpected
    Krascendo 1: divarasib versus sotorasib or adagrasib, previously treated KRAS G12C NSCLC

    The first phase 3 comparing KRAS G12C inhibitors head to head. Timing is a registry-based estimate.

    Source
    2027Expected readoutexpected
    IDeate-Lung02: ifinatamab deruxtecan versus chemotherapy, relapsed small-cell lung cancer

    Pivotal phase 3 for the B7-H3 ADC from the Merck and Daiichi Sankyo collaboration. Timing is a registry-based estimate.

    Source
    2027Expected readoutexpected
    REJOICE-Ovarian01: raludotatug deruxtecan in platinum-resistant ovarian cancer

    Phase 2/3 for the CDH6 ADC. Timing is a registry-based estimate.

    Source
    2027Expected readoutexpected
    TROPION-Lung14: datopotamab deruxtecan plus osimertinib, first-line EGFR-mutant NSCLC

    Would move the TROP2 ADC into the first-line EGFR-mutant setting on top of the standard TKI. Timing is a registry-based estimate.

    Source
    2027Expected readoutexpected
    ASCENT-07: sacituzumab govitecan versus chemotherapy, first-line HR-positive HER2-negative metastatic breast cancer

    Tests the ADC as the first chemotherapy after endocrine therapy. Timing is a registry-based estimate.

    Source
    2027Filingexpected
    Regulatory filings for intismeran autogene plus pembrolizumab in adjuvant melanoma (INTerpath-001)

    The sponsors said filings would follow the positive topline result of August 2026 and the full data presentation. Timing is our estimate.

    Source
    2027Regulatory decisionexpected
    US regulatory decision on sacituzumab tirumotecan (sac-TMT) — first indication

    Merck holds a Commissioner's National Priority Voucher (July 2026) that promises a 1–2 month review once filed. No PDUFA date has been disclosed; indication (TNBC vs EGFR-mutant NSCLC) and filing timing are not public.

    Source
    2027Expected readoutexpected
    ASCENT-05 / OptimICE-RD: sacituzumab govitecan + pembrolizumab, post-neoadjuvant residual TNBC

    Event-driven iDFS endpoint in patients with residual disease after KEYNOTE-522-type therapy. Would be the first ADC in the curative TNBC setting.

    Source

How to read this

Confirmed events carry a source that states the date: a PDUFA goal date in a sponsor release, an advisory committee notice, a congress programme. Expected events are our estimate from the registry primary completion date and sponsor statements; treat them as a quarter, not a day.

Companies are attached directly for catalysts and derived for readout-calendar rows from the products named (each product’s companies in the corpus). Past events stay in the data and can be shown with the checkbox.

Calendar feed

Subscribe to /catalysts/feed.ics in Google Calendar, Outlook or Apple Calendar to get every event, including expected ones placed on the first day of their period. The download button exports only the rows you have filtered to.

Missing a catalyst? Add it to src/data/catalysts.ts with company and product ids and a source; congresses and policy dates belong in src/data/calendar.ts.