| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Newly diagnosed pre- or post-operative breast cancer |  | 
| E.1.1.1 | Medical condition in easily understood language |  | 
| E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 21.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10006188 |  
| E.1.2 | Term | Breast cancer female NOS |  
| E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| To measure cytotoxic drugs, i.e., epirubicin, cyclophosphamide, docetaxel, paclitaxel and doxorubicin, used in routine treatment of breast cancer, and to search for correlations between exposure (AUC) and side effects. The intention is to offer future patients individualized dose adjustments to avoid both over- and under-treatment. |  | 
| E.2.2 | Secondary objectives of the trial | 
| 1. Correlations between exposure and; hematologic-, liver-, cardiac- and ovarian toxicity 2. Correlations between exposure and the patient’s quality of life
 3. Genetic predispositions for drug metabolism to identify patients at increased risk of under- or overdose
 4. Correlations between exposure and tumor response in patients receiving neoadjuvant treatment
 5. Correlations between BMI, age, smoking habits and renal status vs. exposure
 6. Relationship between drug exposure and medical care needs, level of employment
 7. Difference in total and recurrence-free survival between patients with low compared to medium/high exposure
 8. Difference in the prevalence of SAE in patients with high compared to low exposure
 10. Correlations between exposure and circulating extracellular vesicles
 11. Correlations between exposure and health state utility values
 12. Different healthcare costs associated with severe adverse events in patients exhibiting high compared low exposure?
 |  | 
| E.2.3 | Trial contains a sub-study | Yes | 
| E.2.3.1 | Full title, date and version of each sub-study and their related objectives | 
| PILOT: Therapeutic dose monitoring of breast cancer patients receiving endocrine treatment. Sub-protocol version 1.0, 17 Apr 2019. 
 Primary Objective
 The primary objective is to validate an IVD method for capillary sampling of the most common endocrine drugs used in routine treatment of breast cancer, and to search for correlations between exposure and side effects. The future intent is to offer patients individualized dose adjustments to avoid both over- and under-treatment.
 
 Secondary objectives
 1.	How robust are the LC MS/MS measurements of the drug and metabolites?
 2.	How robust is the capillary method?
 3.	Are the main side effects also linked to high exposure?
 4.	What correlations can be identified between exposure in whole blood and plasma?
 5.	How is exposure levels affected by Hb?
 6.	What correlations exist between Tam, Tam-Hb and z-endoxifen?
 
 
 |  | 
| E.3 | Principal inclusion criteria | 
| 1. Female patients aged ≥ 18 years. 2. Treated with any, or a combination, of the drugs cyclophosphamide, epirubicin, doxorubicin, docetaxel and paclitaxel.
 3. Written informed consent.
 
 |  | 
| E.4 | Principal exclusion criteria | 
| 1. Patients fulfilling any of the contraindications mentioned for the studied drugs. 2. Patients treated with a combinatorial regime of docetaxel, carboplatin and trastuzumab.
 3. A decision of exclusion is taken by the treating oncologist at the respective oncological clinic.
 
 |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| to measure the incidence of grade 1-2 anemia (as defined by CTC v.4) in two exposure groups; high and low, in patients treated with epirubicin and cyclophosphamide. |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
| During chemotherapy treatment |  | 
| E.5.2 | Secondary end point(s) | 
| Correlations between the measured exposures (AUCs) of studied drugs; epirubicin, cyclophosphamide, docetaxel, paclitaxel and doxorubicin, vs.: 
 1.	Measured markers for; hematologic toxicity (RBC, WBC count, neutrophils and platelets), liver toxicity (ALAT, ASAT, ALP and bilirubin), cardiotoxicity (tissue doppler and strain echocardiographic variables, ECG variables, and MRI variables), ovarian cell toxicity (follicle stimulating hormone, luteinizing hormone, estradiol, progesterone, inhibin-B and anti-Müllerian-hormone).
 2.	Self-reported score on Quality of Life questionnaire (MSAS).
 3.	Common single nucleotide polymorphisms (SNPs) in genes coding for drug metabolizing enzymes, transporters and targets known to be involved in the metabolism and action of the studied drugs (e.g., CYP1A1, CYP1B1, CYP2A6, CYP2B6, CYP2C9, CYP2D6, CYP3A4, CYP3A5, GSTM1, GSTM2, GSTP1, ABCB1, CYP2C8).
 4.	Tumor size (post treatment/baseline).
 5.	BMI, age, self-reported smoking habits and measured serum creatinine levels.
 6.	Recorded medical needs, reported level of employment during and after treatment and time for recovery through follow-up.
 7.	Follow-up of total and recurrence-free survival data in patients participating in this study combined with data from subsequent intervention studies with active dose adjustments.
 8.	Frequency of observed adverse events of grade 3 or higher.
 10.        Measurement of the number and composition of extracellular vesicles in blood.
 11.     Utility values were calculated from self-reported health states (QLU-C10D and EQ-5D-5L).
 12.     Healthcare costs are associated with adverse events in grades 3 or higher.
 |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
| During chemotherapy treatment |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | No | 
| E.6.3 | Therapy | No | 
| E.6.4 | Safety | No | 
| E.6.5 | Efficacy | No | 
| E.6.6 | Pharmacokinetic | Yes | 
| E.6.7 | Pharmacodynamic | Yes | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | Yes | 
| E.6.10 | Pharmacogenetic | Yes | 
| E.6.11 | Pharmacogenomic | Yes | 
| E.6.12 | Pharmacoeconomic | No | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | No | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | Yes | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | No | 
| E.8.1.1 | Randomised | No | 
| E.8.1.2 | Open | Yes | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | No | 
| E.8.1.5 | Parallel group | No | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | No | 
| E.8.2.2 | Placebo | No | 
| E.8.2.3 | Other | No | 
| E.8.3 | The trial involves single site in the Member State concerned | Yes | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | No | 
| E.8.5 | The trial involves multiple Member States | No | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | No | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | No | 
| E.8.7 | Trial has a data monitoring committee | No | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 2 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 0 |