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. 2022 Mar 22;12:4879. doi: 10.1038/s41598-022-09014-1

Publisher Correction: Anti-cancer treatment schedule optimization based on tumor dynamics modelling incorporating evolving resistance

Anyue Yin 1,2, Johan G C van Hasselt 3, Henk-Jan Guchelaar 1,2, Lena E Friberg 4, Dirk Jan A R Moes 1,2,
PMCID: PMC8940954  PMID: 35318415

Correction to: Scientific Reports 10.1038/s41598-022-08012-7, published online 10 March 2022

The original version of this Article contained errors in Table 1 where the data was listed incorrectly in the column ‘M-KRAS patients’. The original Table 1 and accompanying legend appear below.

Table 1.

Parameters values of the developed model characterizing the dynamics of tumor size and mutation concentrations in metastatic colorectal cancer (mCRC) patients.

Parameters (units) Description Typical values Reference
WT-KRAS patients M-KRAS patients
Ts_0(mm2) Baseline of Ts (clonal population that is sensitive to anti-EGFR inhibitor (D1) ) 5500 100 Data/Estimated value; Mutation was assumed to be acquired during treatment
TR1_0(mm2) Baseline of TR1 (clonal population that is resistance to D1 but is sensitive to the second hypothetical treatment (D2)) 0 1700 Data/Estimated value; Mutation was assumed to be acquired during treatment
TR2_0(mm2) Baseline of TR2 (clonal population that is resistance to both treatments) 0 0 Data/Estimated value; Mutation was assumed to be acquired during treatment
MctDNA1_0(fragments/ml) Baseline of mutant KRAS MctDNA1 in ctDNA 0 500 Data/Estimated value; Mutation was assumed to be acquired during treatment
MctDNA2_0(fragments/ml) Baseline of a second hypothetical mutation MctDNA2 in ctDNA 0 0 Data/Estimated value; Mutation was assumed to be acquired during treatment
kg1(/week) Growth rate constant of Ts 0.03 40
kg2(/week) Growth rate constant of TR1 0.021 43,44
kg3(/week) Growth rate constant of TR2 0.015 43,44
ks1(/week) Tumor shrinkage rate constant due to D1 0.1 Estimated value
ks2(/week) Tumor shrinkage rate constant due to D2 0.1 ks1
kM1(/week) Mutation rate from Ts to TR1 when D1 = 1 0.05 Estimated value
kM2(/week) Mutation rate from TR1 to Ts when D1 = 0 0.03 Lower than kM1 9
kM3(/week) Mutation rate from TR1 to TR2 when D2 = 1 0.05 kM1
kM4(/week) Mutation rate from TR2 to TR1 when D2 = 0 0.03 kM2
H Hill coefficient 5 Visually matching the slope of data and the detectable time of mutant KRAS
KT50(mm2) The size of tumor that provide half-maximal shedding rate of ctDNA 3500 Visually matching the slope of data and the detectable time of mutant KRAS
kmax_1((fragments/ml)/(week*mm2)) Maximum shedding rate of MctDNA1 0.015 1.5 Visually matching the slope of data and the detectable time of mutant KRAS
ke(/week) ctDNA eliminate rate constant 0.5 Visually matching the slope of data and the detectable time of mutant KRAS
kmax_2((fragments/ml)/(week*mm2)) Maximum shedding rate of MctDNA2 0.015 1.5 kmax_1
IIV_ B (ω1) Standard deviation of IIV of baselines 0.6 Data
IIV_ kg (ω2) Standard deviation of IIV of kg 0.2 Data

ctDNA, circulating tumor DNA; IIV, interindividual variability; WT-KRAS patients, patients who were initially identifed as KRAS wild-type in ctDNA; M-KRAS patients, patients who had detectable mutant KRAS in ctDNA pre-treatment.

The original Article has been corrected.


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