AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Accumulation ratio is the ratio of AUC (0-8 hour) on Day 15 / AUC (0-8 hour) on Day 1.

Accumulation ratio is the ratio of AUC (0-8 hour) on Day 15 / AUC (0-8 hour) on Day 1.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

BOR of confirmed /unconfirmed (total) response was defined as CR or PR recorded from baseline until disease progression/recurrence according to Response Evaluation Criteria In Solid Tumors (RECIST) v 1.0 criteria. For target lesions (TLs), CR was defined as the disappearance of all TLs, and PR was defined as at least a 30 percent (%) decrease in the sum of longest diameters of the TLs, taking as a reference the baseline (BL) sum of longest diameters. For non-target lesions (NTLs), CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Confirmed responses were those which were confirmed by repeat assessments performed no less than four weeks after the criteria for response are first met. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Confirmed responses were those which were confirmed by repeat assessments performed no less than four weeks after the criteria for response are first met Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

PFS was the period of time measured from the date of initiation of therapy to the date of the appearance of new metastatic lesions, objective tumor progression, or death if before progression. PD was defined according to the RECIST criteria (v 1.0) as increase by at least 20% in the sum of the longest diameters of each TL, taking as a reference the smallest sum of the longest diameters, reported since the start of treatment, or appearance of one or more new lesions. For Non-TLs, PD was defined as the appearance of one or more new lesions and/or unequivocal progression of existing non-TLs.

PFS was the period of time measured from the date of initiation of therapy to the date of the appearance of new metastatic lesions, objective tumor progression, or death if before progression. PD was at least a 20% increase in the sum of longest diameters of TLs taking as reference the smallest sum of longest diameters recorded since the baseline measurements, or the appearance of one or more new lesion(s). For Non-TLs, disease progression was defined as the appearance of one or more new lesions and/or unequivocal progression of existing non-TLs. In the event of no disease progression or documented death prior to study termination, analysis cutoff, or start of confounding anticancer therapy, PFS was censored at the date of the last evaluable tumor assessment.

OS was the period of time measured from the date of initiation of therapy to the date of the death. In the event of no death prior to study termination or analysis data cutoff, OS was censored at the last known date that the patient was alive as documented on the follow-up case report form. If this date was not available, then the last known alive date from the database was used.

Time to CR or PR was defined as the interval between the date of the first treatment to the date of the first documentation of confirmed CR or PR whichever occurred first, and not the date of confirmation at the subsequent tumor assessment. Time to response = Date of first response - initial dose date + 1.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Tumor uptake of FDG was assessed by means of positron-emission tomography (PET)

The immunohisto-chemical analyses of the expression of phosphorylated ERK, cyclin D1, and Ki-67 in tumor-biopsy specimens was performed using hematoxylin and eosin staining.

Cohorts of 3 to 6 participants received RO5185426 capsules/tablets in MBP formulation at a starting dose of 160 mg BID for 4 weeks. After Day 15 pharmacokinetic assessment and adequate safety and tolerability was shown, next cohort of 3 to 6 participants received 50 % to 100% increased dose of RO5185426 MBP formulation for 4 weeks. Dose escalation was continued up to unacceptable toxicity or disease progression occurred.

Participants with melanoma tumors that carried the V600E mutation of the v-raf murine sarcoma viral oncogene homologue B1 (BRAF) received RO5185426 capsules/tablets in MBP formulation at a dose of 960 mg BID until disease progression, death, or withdrawal from the study.

Participants with CRC that carried the V600E mutation of BRAF received RO5185426 capsules/tablets in MBP formulation at a dose of 960 mg BID until disease progression, death, or withdrawal from the study.

Total of all reporting groups

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 400 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 800 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 1600 mg BID for 4 weeks.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

PK Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

PK Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

PK Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

PK Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

PK Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Accumulation ratio is the ratio of AUC (0-8 hour) on Day 15 / AUC (0-8 hour) on Day 1.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Accumulation ratio is the ratio of AUC (0-8 hour) on Day 15 / AUC (0-8 hour) on Day 1.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

Pharmacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals zero (0) to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

Phamacokinetic (PK) Population: Participants who received all RO5185426 doses without dose reduction up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

BOR of confirmed /unconfirmed (total) response was defined as CR or PR recorded from baseline until disease progression/recurrence according to Response Evaluation Criteria In Solid Tumors (RECIST) v 1.0 criteria. For target lesions (TLs), CR was defined as the disappearance of all TLs, and PR was defined as at least a 30 percent (%) decrease in the sum of longest diameters of the TLs, taking as a reference the baseline (BL) sum of longest diameters. For non-target lesions (NTLs), CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Confirmed responses were those which were confirmed by repeat assessments performed no less than four weeks after the criteria for response are first met. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered evaluable for efficacy.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Confirmed responses were those which were confirmed by repeat assessments performed no less than four weeks after the criteria for response are first met Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered evaluable for efficacy.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered evaluable for efficacy.

BOR of CR or PR was recorded from baseline until disease progression/recurrence according to RECIST v 1.0 criteria. For TLs, CR was defined as the disappearance of all TLs, and PR was defined as at least a 30% decrease in the sum of longest diameters of the TLs, taking as a reference the BL sum of longest diameters. For NTLs, CR was defined as the disappearance of all NTLs and normalization of tumor marker levels. Percentage of participants with best overall response rate was calculated as the (number of participants with CR or PR) divided by (total number of participants in the cohort), and then multiplied by 100. The 95% Cl was determined using the Pearson-Clopper method.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered evaluable for efficacy.

Duration of response for participants with confirmed CR or PR was the period of time measured between the date that the criteria for objective CR or PR (whichever status was recorded first) was met, and the first date that recurrent or PD was objectively documented (or death if before progression). PD was at least a 20% increase in the sum of longest diameters of TLs taking as reference the smallest sum of longest diameters recorded since the baseline measurements, or the appearance of one or more new lesion(s). In the event of no disease progression or documented death prior to study termination, analysis cutoff, or initiation of confounding anticancer therapy, duration of response was censored at the date of the last evaluable tumor assessment.

Modified ITT population: Participants with confirmed CR or PR with a measurable disease at BL, and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered. Seven participants were censored for analysis.

PFS was the period of time measured from the date of initiation of therapy to the date of the appearance of new metastatic lesions, objective tumor progression, or death if before progression. PD was defined according to the RECIST criteria (v 1.0) as increase by at least 20% in the sum of the longest diameters of each TL, taking as a reference the smallest sum of the longest diameters, reported since the start of treatment, or appearance of one or more new lesions. For Non-TLs, PD was defined as the appearance of one or more new lesions and/or unequivocal progression of existing non-TLs.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered. Eight participants were censored for analysis.

PFS was the period of time measured from the date of initiation of therapy to the date of the appearance of new metastatic lesions, objective tumor progression, or death if before progression. PD was at least a 20% increase in the sum of longest diameters of TLs taking as reference the smallest sum of longest diameters recorded since the baseline measurements, or the appearance of one or more new lesion(s). For Non-TLs, disease progression was defined as the appearance of one or more new lesions and/or unequivocal progression of existing non-TLs. In the event of no disease progression or documented death prior to study termination, analysis cutoff, or start of confounding anticancer therapy, PFS was censored at the date of the last evaluable tumor assessment.

Modified ITT population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered. Eight participants were censored for analysis.

Modified ITT Population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered.

OS was the period of time measured from the date of initiation of therapy to the date of the death. In the event of no death prior to study termination or analysis data cutoff, OS was censored at the last known date that the patient was alive as documented on the follow-up case report form. If this date was not available, then the last known alive date from the database was used.

Modified ITT Population: All participants with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered. Twenty participants were censored for analysis.

Time to CR or PR was defined as the interval between the date of the first treatment to the date of the first documentation of confirmed CR or PR whichever occurred first, and not the date of confirmation at the subsequent tumor assessment. Time to response = Date of first response - initial dose date + 1.

Modified ITT population: Participants with a confirmed CR or PR with a measurable disease at BL and completed at least one post-baseline radiographic assessment or discontinued study medication early due to disease progression were considered.

AUC (0-8 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 8 hours post-dose. AUC (0-24 hour) was defined as the area under the plasma concentration-time curve from time equals 0 to 24 hours post-dose. AUC (0-8 hour) and AUC (0-24 hour) were computed using the linear trapezoidal rule.

The analysis was planned only for those participants who received 80 or 120 mg dose of RO5185426 up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome; n=participants evaluable for specified category.

PK Population: The analysis was planned only for those participants who received 80 or 120 mg dose of RO5185426 up to and including Day 15 and provided at least PK assessments up to and including 8 to 10 hours after first dose on Day 15. Number of participants analyzed=participants evaluable for this outcome.

Tumor uptake of FDG was assessed by means of positron-emission tomography (PET)

The immunohisto-chemical analyses of the expression of phosphorylated ERK, cyclin D1, and Ki-67 in tumor-biopsy specimens was performed using hematoxylin and eosin staining.

Participants received RO5185426 capsules in MBP formulation at a dose of 240 mg BID for 4 weeks.

Participants received RO5185426 capsules in MBP formulation at a dose of 320 mg BID for 4 weeks.

Participants received RO5185426 capsules in MBP formulation at a dose of 360 mg BID for 4 weeks.

Participants received RO5185426 capsules in MBP formulation at a dose of 720 mg BID for 4 weeks.

Participants received RO5185426 capsules in MBP formulation at a dose of 1120 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 200 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 400 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 800 mg BID for 4 weeks.

Participants received RO5185426 capsules in original (crystalline) formulation at a dose of 1600 mg BID for 4 weeks.

Participants with melanoma tumors that carried the V600E mutation of the v-raf murine sarcoma viral oncogene homologue B1 (BRAF) received RO5185246 capsules/tablets in MBP formulation at a dose of 960 mg bid until disease progression, death, or withdrawal from the study.

Participants with CRC that carried the V600E mutation of the v-raf murine sarcoma viral oncogene homologue B1 (BRAF) received RO5185246 capsules/tablets in MBP formulation at a dose of 960 mg bid until disease progression, death, or withdrawal from the study.