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Combination exposure, tumor growth and vascular support

Explore how specified drug concentration inputs affect tumor growth and vascular support in a twelve-equation model. Cumulative exposure is tracked separately and does not feed back into the tumor response.

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MODEL IN MOTION 18 sec

How do fixed single-agent and combined mechanism inputs change tumor burden?

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Mechanism untreated

Authored fixed-concentration mechanism experiment; no clinical dose or observed patient is represented.

0–28 day

Mechanism untreated

Authored fixed-concentration mechanism experiment; no clinical dose or observed patient is represented.

Readouts

Tumor total · cell
Tumor total over the selected simulation window.
Tumor relative change · dimensionless
Tumor relative change over the selected simulation window.
Quality fraction · dimensionless
Quality fraction over the selected simulation window.
Ram · ng/mL
Ram over the selected simulation window.
Pac · ng/mL
Pac over the selected simulation window.

Study purpose

  • How do the model's key biological readouts change under mechanism untreated?

Assumptions

  • These are authored mathematical concentration experiments, not clinical mg/kg or mg/m2 administrations.
  • Tumor and vascular-support variables use absolute cell-equivalent coordinates; the supplied initial scale is authored and is not an observed patient.
  • Four varying PD rates use arithmetic midpoints of the final reported ranges; these are not fitted individual or population-typical estimates.
  • Ramucirumab elimination follows the declared CL/V1 day-clock convention. Ab and At retain the literal source reciprocal-rate equations; At is not a qualified physical tissue concentration.
  • All seven selected source identities remain disabled: four primary references and three clinical/adaptive contexts awaiting source bindings.
  • The fixed delayed-concentration experiment does not implement the published adaptive quality-of-vasculature controller.
  • Clinical dose conversion, final virtual-patient reconstruction, calibration, Kaplan–Meier prediction and clinical interpretation remain held.
  • Parameters and initial conditions are frozen together; no independent baseline or cell-scale edits are supported.
  • S and S+U must remain positive. No clamps or silent state normalization modify the published equations.

Inputs changed since the displayed result. Run to update the comparison.

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Simulation time
day
day
28 → 168

Time between reported samples.

day
0.25 → 1

2 changes · Variation 1

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Biology

Explore joint drug-exposure, tumor-damage and vascular-support dynamics under declared mathematical inputs.

Explore joint drug-exposure, tumor-damage and vascular-support dynamics under declared mathematical inputs.

Model details

15 parameters · 14 states · 14 equations · 23 derived outputs

Classification & API access
Therapeutic
Ramucirumab and paclitaxel
Modality
Monoclonal antibody
Target
VEGFR-2 / KDR, Microtubules
Disease / scope
Advanced gastric cancer mechanism
ParameterDefaultUnitDescription
Deltadelta_per_cell_day5.73e-81/cell/dayFrozen declared concentration experiment input; see source/assumption map.
Gammagamma_per_day0.0631/dayFrozen declared concentration experiment input; see source/assumption map.
Initial tumorinitial_tumor_cells1000000cellFrozen declared concentration experiment input; see source/assumption map.
Absorption rate constantka_ml_ng_day1mL/ng/dayFrozen declared concentration experiment input; see source/assumption map.
Kbtkbt_per_day0.1891/dayFrozen declared concentration experiment input; see source/assumption map.
Elimination rate packel_pac_per_day1.70399999999999971/dayFrozen declared concentration experiment input; see source/assumption map.
Ktbktb_per_day0.5251/dayFrozen declared concentration experiment input; see source/assumption map.
Ktrktr_per_day0.0871/dayFrozen declared concentration experiment input; see source/assumption map.
Kunkun_per_day0.041/dayFrozen declared concentration experiment input; see source/assumption map.
Kxkx_ml_ng_day0.008mL/ng/dayFrozen declared concentration experiment input; see source/assumption map.
Lambdalambda_per_day0.01951/dayFrozen declared concentration experiment input; see source/assumption map.
Mumu_per_day0.21/dayFrozen declared concentration experiment input; see source/assumption map.
Ram clearanceram_cl_l_day0.506L/dayFrozen declared concentration experiment input; see source/assumption map.
Ram distribution volume 1ram_v1_l3.421LFrozen declared concentration experiment input; see source/assumption map.
Tautau_per_day0.00551/dayFrozen declared concentration experiment input; see source/assumption map.

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