October 24, 2026 · Science & Research Daily Digest
A digest of science, space, biomedicine, and climate research for October 24, 2026, with summaries, links, and commentary.
I. Biomedicine
1. ESMO reports the full phase 3 intismeran readout: 2-year recurrence-free survival 82.2% versus 70.0%, overall survival still immature (Oncology)
Summary:
Cancer Network reported on October 24 that Georgina V. Long of the Melanoma Institute Australia presented the full phase 3 INTerpath-001 results (NCT05933577, abstract LBA1) in Presidential Symposium I at ESMO 2026 in Madrid. Patients with completely resected stage IIB–IV cutaneous melanoma were randomized 2:1 to the individualized mRNA neoantigen therapy intismeran plus pembrolizumab (757) or placebo plus pembrolizumab (380). At a median follow-up of 24.6 months, with a June 30, 2026 data cutoff, the combination reduced recurrence or death by 42% (HR 0.58, 95% CI 0.45–0.75, two-sided P < 0.001), with 2-year recurrence-free survival of 82.2% versus 70.0%, and reduced distant metastasis or death by 38% (HR 0.62, 95% CI 0.45–0.85, P = 0.002). Overall survival was immature and did not cross the prespecified boundary (HR 0.77, 95% CI 0.45–1.31, P = 0.33). Intismeran was manufactured for more than 99% of the combination arm. Grade 3–5 treatment-related adverse events were 14.2% versus 13.4%, and both treatment-related deaths (0.3%) were attributed to pembrolizumab. The report says the results have been accepted by The New England Journal of Medicine.
Links:
- Cancer Network — INTerpath-001 Data Detail Survival, Subgroup, and Safety Findings in Melanoma
- Merck — INTerpath-001 results for intismeran plus KEYTRUDA at ESMO 2026
Commentary:
The 42% figure is still recurrence-free survival; in the prespecified piecewise analysis the hazard ratio was 0.99 for the first 6 months and the separation came after the immunization regimen.
2. Pfizer reports four-dose infant immunogenicity for a 25-valent pneumococcal candidate at IDWeek, with serotype 3 GMCs about 15-fold higher than the 20-valent control (Vaccines)
Summary:
Pfizer’s October 24 release said an oral presentation that day at IDWeek in Washington covered phase 2 study NCT06524414. A four-dose series of the 25-valent candidate PF-07872412 (25vPnC) elicited immune responses to all 25 serotypes, with local reactions, systemic events, and adverse events comparable to four doses of PREVNAR 20, and no related serious adverse events identified. Against serotype 3, geometric mean concentrations were 8.8-fold higher than PREVNAR 20 one month after dose 3 and about 15-fold higher one month after dose 4. Serotype 3 accounts for 10.6% of invasive pneumococcal disease in U.S. children under five. The five added serotypes, 15A, 23A, 23B, 24F, and 35B, are estimated to cover about 30% more pediatric invasive disease in the United States than PREVNAR 20, and the 25 serotypes together about 84% of cases under age five. Three phase 3 studies that began earlier in 2026 randomize up to 6,830 participants to 25vPnC or PREVNAR 20. Pfizer also said it plans to move an adult 35-valent candidate into clinical development by the end of 2026, pending regulatory alignment.
Links:
Commentary:
These are infant immunogenicity and tolerability results, not an efficacy endpoint for invasive pneumococcal disease; the 84% figure is an estimate from U.S. surveillance for 2020–2024.
3. Tsinghua group publishes a 588-gram abdominal ultrasound robot tested in 102 healthy participants and 17 patients (Medical engineering)
Summary:
Nature Communications on October 24 published an open-access paper by Zihan Li, Yixiao Xu, and colleagues at Tsinghua Medicine, with Beijing Tsinghua Changgung Hospital and Qinghai Provincial People’s Hospital. The system uses a 588-gram decoupled end-effector mounted on the abdomen and an agent trained on sonographer trajectories. It combines spatial, force, and image feedback to hold force and motion during breathing and bedside disturbance and to cross discontinuous acoustic windows for standard planes. Evaluation in 102 healthy participants and 17 patients produced clinically interpretable images and anatomical measurements close to clinical references. The authors also deployed it for hepatic echinococcosis screening in a high-altitude, low-resource setting on the Qinghai-Tibet Plateau and tested dynamic scenarios, including vehicle-based scanning. Funding came from China’s National Key R&D Program and the National Natural Science Foundation.
Links:
Commentary:
The paper delivers portable, patient-mounted acquisition of standard views; the screening deployment is not a completed diagnostic-accuracy trial.
4. Born in Bradford: 147 mid-pregnancy metabolites in 1,423 mother-child pairs line up with three growth trajectories to 36 months (Cohort)
Summary:
The International Journal of Obesity on October 24 published a paper from the University of British Columbia, Warsaw University of Life Sciences, and the University of Leeds. Using 1,423 mother-child pairs in the Born in Bradford cohort, the authors quantified 147 metabolites by NMR in fasting blood at 26–28 weeks of gestation and fit latent growth classes for weight, length/height, and BMI from 0 to 36 months. Each measure separated into normative, intermediate, and non-uniform trajectories. Distinguishing trajectories within a measure required 30 to 41 metabolites, and 14 lipoprotein subclasses were required across weight, length/height, and BMI. After adjustment for ethnicity and gestational diabetes, associations per unit change in metabolite spanned −0.47 to 1.5 for weight z-score, −0.87 to 2.2 for length/height, and −0.85 to 1.8 for BMI (P < 0.05). South Asian ethnicity was associated with lower weight z-scores, in a range of −0.214 to −0.212.
Links:
- International Journal of Obesity — Maternal mid-pregnancy metabolic profiles and growth trajectories
Commentary:
These are observational associations and trajectory classes; the z-score span per metabolite unit is wide and is not a single growth effect size.
II. Basic Research
5. Baylor designs protein fiducials for GPCR cryo-EM, resolving four inactive states and the β2 receptor without G protein (Structural biology)
Summary:
Nature Communications on October 24 published an open-access paper by Michael J. Robertson and Alina A. Vo at Baylor College of Medicine with Justin G. English and Yuan-En Sun at the University of Utah. Combining generative protein design with deep-learning ensemble prediction, they design rigid fiducials at arbitrary fusion points so GPCRs can be imaged by cryo-EM without signaling partners or mimetics. The validation set is inactive-state structures of four pharmaceutically relevant GPCRs. An extracellular fiducial on the prototypical β2-adrenergic receptor let them see rearrangement of key intracellular motifs in the absence of G protein. Comparison with recent co-folding models shows major gaps in predicting ligand-induced conformations. Funding includes NIH R00 HD107581 and CPRIT RR230042.
Links:
Commentary:
The paper opens conformations without a signaling partner; the abstract does not give a resolution or a drug-development claim.
6. Jichi Medical University finds six HCN4 turret substitutions that abolish hyperpolarization-evoked current (Ion channels)
Summary:
Nature Communications on October 24 published an open-access paper by Kaei Ryu, Go Kasuya, and Koichi Nakajo at Jichi Medical University. HCN channels set rhythmic electrical activity in heart and neurons, and their dysfunction is tied to arrhythmia and epilepsy. Alanine scanning of the HCN4 extracellular turret found six residues whose substitution abolished hyperpolarization-evoked currents. Voltage-clamp fluorometry showed that S4 activation remained while turret conformational change was selectively lost, uncoupling the voltage-sensing domain from pore opening. Structural and functional analysis identified an extracellular network linking the turret to S1, S5, and S6 that is required for hyperpolarization-dependent gating. Support came from JSPS KAKENHI 24K02211 and Sasakawa grant 2025-4001.
Links:
Commentary:
The six residues mark the turret as a gating hub; the paper proposes a coupling model, not a new antiarrhythmic drug.
7. ByteDance Seed and Peking University enforce exact total spin in real-space neural wavefunctions and apply them to iron-sulfur clusters (Quantum chemistry)
Summary:
Nature Communications on October 24 published an open-access paper from ByteDance Seed and Peking University, with Ruichen Li and Yuzhi Liu as co-first authors and Weiluo Ren and Ji Chen among the corresponding authors. Their spin-adapted antisymmetrization method uses group representation theory to enforce exact total-spin symmetry on antisymmetric many-electron wavefunctions in real space, inside neural-network quantum Monte Carlo. The demonstration is the dense spin ladder of iron-sulfur clusters. The paper reports resolution of low-lying spin states and spin gaps in [Fe2S2] and [Fe4S4]. Funding for Di He, Liwei Wang, and Ji Chen is cited from the National Natural Science Foundation of China and a National Key R&D Program grant.
Links:
Commentary:
The abstract says the spin states can be resolved; it does not attach an error against measured gaps.
8. Dalian Institute subnanometer PtFe clusters reach about 60% conversion and about 99% propylene selectivity at 600°C with 0.1 wt% platinum (Catalysis)
Summary:
Nature Communications on October 24 published an open-access paper from the Dalian Institute of Chemical Physics, Fuzhou University, and Taiyuan University of Technology, with Yicong Chai, Peng Li, and Dali Chen as co-first authors and Tao Zhang among the authors. They stabilize electron-rich Ptδ− and electron-deficient Ptδ+ sites together in silica-supported subnanometer PtFe clusters. The paper reports about 99% propylene selectivity at about 60% conversion, near thermodynamic equilibrium at 600°C, with a platinum loading of 0.1 wt%. The mechanism assigns C–H activation to Ptδ− and propylene desorption to neighboring Ptδ+. Funding includes several National Natural Science Foundation of China grants and the single-atom catalysis basic science center grant 22388102.
Links:
Commentary:
The roughly 99% selectivity and 60% conversion are the figures reported under the stated reaction conditions, not an operating industrial campaign.
III. Earth System and Deep-Time Climate
9. A North China Cambrian SPICE record shows an approximately 2-million-year sedimentary rhythm, with sea level leading benthic richness by 70,000 years (Deep-time carbon cycle)
Summary:
Nature Communications on October 24 published an open-access paper from the Nanjing Institute of Geology and Palaeontology, Nanjing University, and Peking University, with authors including Meng Wang, Yukun Shi, and Mingsong Li. They combine astrochronology, carbonate carbon isotopes from the North China Block, and marine species richness across the Cambrian Steptoean Positive Carbon Isotope Excursion (SPICE). Time-series analysis shows a distinct sedimentary rhythm of about 2 million years aligned with reconstructed sea-level and biodiversity cycles. Sea-level change preceded shifts in benthic species richness by 70,000 years. The authors treat that lead as a constraint linking astronomically paced sea-level oscillation, marine redox, and concurrent biodiversity turnover. Funding includes National Key R&D Program grant 2022YFF0802900 and Chinese Academy of Sciences strategic priority program XDB0850000.
Links:
Commentary:
The 70,000-year lead belongs to a Cambrian carbon-cycle perturbation; it is not a forecast for modern sea level or present-day species loss.
Today's Summary
- Biomedicine: the full ESMO readout put 2-year recurrence-free survival for intismeran at 82.2% versus 70.0%, with overall survival at HR 0.77 and P = 0.33; Pfizer’s 25-valent infant pneumococcal candidate produced serotype 3 geometric mean concentrations about 15-fold higher than PREVNAR 20 after dose 4.
- Medical engineering and cohorts: a 588-gram abdominal ultrasound robot acquired interpretable liver images in 102 healthy participants and 17 patients; 1,423 Born in Bradford pairs linked 147 mid-pregnancy metabolites to three growth trajectories through 36 months.
- Basic research: GPCR protein fiducials, six HCN4 turret residues, spin-adapted neural wavefunctions for iron-sulfur clusters, and about 99% propylene selectivity at 0.1 wt% platinum all come from Nature Communications papers dated October 24.
- Deep-time climate: the North China SPICE record shows an approximately 2-million-year sedimentary rhythm, with sea-level change leading benthic species richness by 70,000 years.
Daily Framing:
October 24 was a readout day: the meetings left melanoma-vaccine overall survival immature and stopped the 25-valent pneumococcal candidate at immunogenicity, while same-day journal papers turned structure, catalysis, and deep-time carbon cycling into checkable numbers.
This digest is compiled from real-time search results and is for reference only.