Writing

This is the English list. Each article is also available in Japanese; the link under each entry opens the other language.

Tools, glossary and model catalog

What can public RNA-seq say about "reverting cancer cells to normal"?

A Japanese note re-reading a reported reversion of colorectal cancer cells after triple knockdown of three genes chosen by a Boolean network model, using the public RNA-seq data and a pre-fixed analysis plan. It checks whether the targets were expressed and knocked down, how specific the enterocyte program was, and how consistent the lines were. It does not evaluate the paper's other experiments or any therapy.

日本語

Sevabertinib dosing frequency and formulation

Aggregate AUC ratios estimate relative bioavailability. Public PopPK coefficients compare paired schedules in 4096 conditional virtual patients. Unresolved peak reconstruction and the limits of AUC-only E-R are explicit.

日本語

Can public data show that ivonescimab 20 mg/kg Q3W beats 10 mg/kg Q3W?

A Japanese research note auditing what published phase 1-2 pharmacokinetics, PD-1 receptor occupancy and dose-level response rates can say about 20 versus 10 mg/kg Q3W of ivonescimab, with the analysis plan fixed before computing. The answer is inconclusive. It makes no claim about efficacy ranking, recommended dose or any regulatory decision.

日本語

Sunvozertinib dose and dosing-frequency comparisons

Observed aggregate PK supports a dose-exposure fit. A reconstructed parent PopPK model compares paired regimens in4096 conditional virtual patients. Clinical cohort differences, absorption assumptions and limits of split-dose predictions are explicit.

日本語

PK/PD, population PK, PBPK and QSP: purposes, data and interpretation

A Japanese guide comparing purposes, input data, model development, diagnostics and limits of PK/PD, population PK, PBPK and QSP. Three original figures include hypothetical PK/PD dynamics and analytical conditional population distributions. No empirical model estimation or real-drug validation is claimed.

日本語

Gemcitabine infusion duration: plasma AUC and intracellular exposure

A fixed-effect plasma/PBMC subsystem from a published clinical model is implemented independently. Equal doses give equal plasma AUC, while PBMC AUC differences are determined by a categorical formation-clearance assumption. Constant-formation and tail scenarios clarify limits; no tumor, clinical benefit, safety or regimen recommendation is inferred.

日本語

Unobserved mediators do not disappear from a network

A Japanese essay on the difference between edges inferred from observed variables and the molecular interactions behind them. It links the mathematics of eliminating a mediator, a reproducible synthetic example, chemical-mediated microbial interactions, single-cell gene regulatory networks and mechanism assessment in drug discovery. It makes no claim about any real organism or drug.

日本語

Does a model that predicts well understand the mechanism? Separating prediction from mechanistic inference

A Japanese essay distinguishing observational prediction, prediction under intervention and mechanistic claims, drawing on recent perturbation-prediction benchmarks and ICH M15. A reproducible synthetic indirect-response example shows that parameter sets compatible with the same data agree on a slowly varying regimen but diverge in the unobserved early hours, and that early sampling resolves the practical non-identifiability. It makes no claim about any real drug.

日本語

Do fixed doses of anti-PD-1 antibodies keep exposure in range at extreme body weights?

Re-implemented population PK models for pembrolizumab and nivolumab were applied to a public adult weight distribution. Fixed doses let trough exposure fall below the trial-tested range most often in heavy patients, weight-based doses in the first interval of light patients; the verdict on extended intervals depends on how the range is defined. No dose is recommended.

日本語

Where are the bottlenecks in AI-enabled drug discovery?

A Japanese essay reviewing experimental workflows, industry disclosures and clinical progress. It distinguishes experimental throughput from evidence useful for development decisions; revenue growth and individual clinical advances do not establish an AI-driven supply shortage or a causal improvement in clinical success.

日本語

Can matching average exposure alone set the tarlatamab dosing interval?

Between-subject variability simulated from a published population PK model, with efficacy exposure–response, period-specific CRS and maintenance exposure examined separately. Matching average exposure does not preserve peaks and troughs, and the analysis shows the limits of deciding from public information.

日本語