Treatment duration was calculated in days as the date of the last dose of any study treatment minus date of the first dose of any study treatment plus one day.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The adverse event did not necessarily have to have a causal relationship with this treatment. A serious adverse event (SAE) was any untoward medical occurrence that at any dose: resulted in death; was life-threatening; required in-patient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability or incapacity; was a congenital anomaly or birth defect; was an important medical event. A new treatment-emergent adverse event (TEAE) was any AE that had a start date on or after ICF date in STEP and up to 30 days after the last sorafenib dose. A drug-related new TEAE was any new TEAE that had a causal relationship with the study treatment as assessed by the investigator.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The AE did not necessarily have to have a causal relationship with this treatment. A new treatment-emergent adverse event (TEAE) was any AE that had a start date on or after ICF date in STEP and up to 30 days after the last sorafenib dose. The intensity or severity of AEs were graded using the National Cancer Institute-Common Terminology Criteria, Version 3.0 (NCI-CTC v. 3.0). The Common Terminology Criteria for AE (CTCAE) are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. It uses a range of grades from 1 to 5. Specific conditions and symptoms may have values or descriptive comment for each level, but the general guideline is: Grade 1 - mild; Grade 2 - moderate; Grade 3 - severe; Grade 4 - life-threatening; Grade 5 - death.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The AE did not necessarily have to have a causal relationship with this treatment. A new treatment-emergent AE (TEAE) was any AE that had a start date on or after ICF date in STEP and up to 30 days after the last sorafenib dose. A drug-related new TEAE was a new TEAE that had a causal relationship with the study treatment as assessed by the investigator. The intensity or severity of AEs were graded using the National Cancer Institute-Common Terminology Criteria (CTC v3). The Common Terminology Criteria for AE (CTCAE) are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. It uses a range of grades from 1 to 5. The general guideline is: Grade 1 - mild; Grade 2 - moderate; Grade 3 - severe; Grade 4 - life-threatening; Grade 5 - death.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The AE did not necessarily have to have a causal relationship with this treatment. A drug-related AE was any AE that had a causal relationship with the study treatment as assessed by the investigator. All AEs in STEP were the combination of AEs ongoing from feeder studies and new TEAEs.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The AE did not necessarily have to have a causal relationship with this treatment. All AEs in STEP were the combination of AEs ongoing from feeder studies and new TEAEs. The intensity or severity of AEs were graded using the National Cancer Institute-Common Terminology Criteria, Version 3.0 (NCI-CTC v. 3.0). The Common Terminology Criteria for AE (CTCAE) are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. It uses a range of grades from 1 to 5. Specific conditions and symptoms may have values or descriptive comment for each level, but the general guideline is: Grade 1 - mild; Grade 2 - moderate; Grade 3 - severe; Grade 4 - life-threatening; Grade 5 - death.

Safety analysis set (SAF)

An adverse event (AE) was any untoward medical occurrence in a participant or clinical investigation participant administered with a pharmaceutical product. The AE did not necessarily have to have a causal relationship with this treatment. A drug-related AE was any AE that had a causal relationship with the study treatment as assessed by the investigator. All AEs in STEP was a combination of AEs ongoing from feeder studies and new TEAEs. The intensity or severity of AEs were graded using the National Cancer Institute-Common Terminology Criteria, Version 3.0 (NCI-CTC v. 3.0). The Common Terminology Criteria for AE (CTCAE) are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. It uses a range of grades from 1 to 5. Specific conditions and symptoms may have values or descriptive comment for each level, but the general guideline is: Grade 1 - mild; Grade 2 - moderate; Grade 3 - severe; Grade 4 - life-threatening; Grade 5 - death.

Safety analysis set (SAF)

Primary cause of death included: any cause; progressive disease; toxicity due to study treatment (with at least one AE with outcome death); other (unspecified) or missing cause.

Safety analysis set (SAF)

Hematology and blood chemistry values were summarized according to their worst CTCAE grade, where applicable. Hematology and blood chemistry values were graded based on the applicable laboratory threshold values outlined in NCI CTCAE version 3.0. Participants with a specific laboratory value that were "not graded" are not included in the table. CTCAE grade was set to "not graded" if the reference ranges or other information necessary to derive grades were unavailable or result had a special character (such as > or < ). The Common Terminology Criteria for Adverse Events (CTCAE) are a set of criteria for the standardized classification of adverse effects of drugs used in cancer therapy. It uses a range of grades from 1 to 5. Specific conditions and symptoms may have values or descriptive comment for each level, but the general guideline is: Grade 1 - mild; Grade 2 - moderate; Grade 3 - severe; Grade 4 - life-threatening; Grade 5 - death.

Participants in safety analysis set (SAF) with evaluable data for each evaluated laboratory parameter

Eastern cooperative oncology group (ECOG) performance status: 0 = Fully active, able to carry on all pre-disease performance without restriction; 1 = Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g. light house work, office work; 2 = Ambulatory and capable of all self-care but unable to carry out any work activities, up and about more than 50% of waking hours; 3 = Capable of only limited self-care, confined to bed or chair more than 50% of waking hours; 4 = Completely disabled, cannot carry on any self-care, totally confined to bed or chair; 5 = Dead

Participants in safety analysis set (SAF) with evaluable data for the evaluation at each timepoint