New KCC City Clinic —  New Baneshwor →
Clinical Tools — Kathmandu Cancer Center

Oncology Clinical Calculators

Evidence-based tools for oncologists, pharmacists, and clinical teams. Built and maintained by KCC.

For use by qualified healthcare professionals only. Verify all doses against institutional protocols and current literature before administration.

Body Surface Area & Drug Dose

BSA using Mosteller formula with optional drug dose per m²

BSA = √[(Height × Weight) / 3600]

Mosteller Formula — Notes

Formula

BSA (m²) = √[(Height_cm × Weight_kg) ÷ 3600]

Mosteller (1987) is the most widely used BSA formula in oncology trials. It correlates closely with DuBois for typical adult patients (BSA 1.5–2.2 m²).

Clinical Notes

BSA-based dosing standardises systemic exposure across body sizes. For narrow-therapeutic-index drugs (anthracyclines, taxanes, platinums) precision is critical. Use actual body weight unless institutional protocol specifies ideal or adjusted body weight for obese patients (BMI ≥ 30).

Carboplatin Dose & GFR

Calvert formula with Cockcroft-Gault GFR and evidence-based dose capping

Dose = AUC × (GFR + 25)
1.0
Floor of 0.7 applied (Cockcroft-Gault convention)
5
AUC 2 (weekly) · AUC 4–5 (+paclitaxel) · AUC 5–6 (3-weekly mono)

Calvert Formula — Notes

GFR Estimation

GFR = [(140−Age) × Weight] ÷ (72 × SCr)
× 0.85 if female · SCr floor = 0.7 mg/dL

Creatinine floor of 0.7 mg/dL prevents GFR overestimation in cachectic or sarcopaenic patients.

Dose Caps (ESMO / BGCS)

AUCMax dose
71000 mg
6900 mg
5750 mg
4600 mg
3450 mg
2300 mg

Contraindicated if GFR < 20 mL/min. Dose reduction at GFR 20–40 mL/min.

Khorana VTE Risk Score

Predicts VTE risk in cancer patients initiating chemotherapy

Khorana et al. Blood 2008;111:4902–7
Laboratory & Clinical Factors
Pre-chemo platelet count ≥ 350 × 10⁹/L
Check FBC before first cycle
+1 pt
Haemoglobin < 10 g/dL or use of ESA
Erythropoiesis-stimulating agent (EPO / darbepoetin)
+1 pt
Pre-chemo WBC > 11 × 10⁹/L
Exclude infection or G-CSF use
+1 pt
BMI ≥ 35 kg/m²
BMI = weight(kg) ÷ height(m)²
+1 pt
0Score
Clinical Recommendation

Khorana Score — Background

Scoring Summary

FactorPts
Stomach / Pancreas2
Lung / Lymphoma / GYN / Bladder / Testicular1
Plt ≥ 350 × 10⁹/L1
Hgb < 10 g/dL or ESA use1
WBC > 11 × 10⁹/L1
BMI ≥ 35 kg/m²1

Risk Stratification

ScoreRiskVTE rate (2.5 mo)
0Low~0.3–0.8%
1–2Intermediate~2%
≥ 3High~6.7–7.1%

ASCO 2023 / ESMO Guidance

Score ≥ 2 patients initiating systemic therapy should be offered primary thromboprophylaxis with a DOAC (apixaban 2.5 mg BD or rivaroxaban 10 mg OD) or LMWH, provided no significant bleeding risk. Reassess at each cycle as lab parameters change.

⚠ Limitation: Validated in ambulatory solid-tumour chemotherapy patients. Underperforms in multiple myeloma — use IMPEDE-VTE score instead. Always assess bleeding risk individually before initiating prophylaxis.

BED & EQD2 Calculator

Biological Effective Dose and Equivalent Dose in 2 Gy fractions — for SBRT, brachytherapy, and fractionation comparison. Core tool for KCC's radiation oncology team. No other centre in Nepal has this online.

Coming Soon

MASCC Febrile Neutropenia Risk Score

Identifies low-risk febrile neutropenia patients eligible for outpatient oral antibiotic management. High-frequency daily use in medical oncology and haematology wards.

Coming Soon
Planned calculatorsWhat we're building next

BED / EQD2 Calculator

Radiobiological fractionation converter for SBRT, hypofractionation, and brachytherapy. Core tool for KCC's radiation oncology programme — no competitor in Nepal has this.

KCC Priority

MASCC Febrile Neutropenia

Risk-stratifies febrile neutropenia to guide inpatient vs outpatient antibiotic management. High-frequency daily use on chemotherapy wards.

Coming Soon

ECOG / Karnofsky Converter

Bidirectional PS converter with trial eligibility guidance. Useful for rapid documentation and referral letters.

Coming Soon

Cisplatin GFR Eligibility

GFR-gated cisplatin eligibility and hydration volume calculator. Natural companion to the carboplatin calculator for switching decisions.

Coming Soon

Antiemetic Risk & CINV Protocol

Emetogenicity category lookup with ASCO/MASCC guideline antiemetic recommendations per regimen.

Coming Soon