A Trial Comparing Insulin Degludec/Liraglutide and Insulin Degludec in Combination With Metformin in Chinese Subjects With Type 2 Diabetes Mellitus Inadequately Controlled With Basal Insulin Therapy and Metformin With or Without One Other Oral Antidiabetic Drug (OAD)

Change in Body Weight

Change in body weight from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Number of Treatment-emergent Severe or Blood Glucose (BG) Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the American Diabetes Association (ADA) classification (requiring assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 millimoles per liter (mmol/L) with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Number of treatment-emergent severe or BG confirmed hypoglycaemic episodes during 26 weeks of treatment is presented.

Time frame: Up to 26 weeks

Change in Fasting Plasma Glucose (FPG)

Change in FPG from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Waist Circumference

Change in waist circumference from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Mean of the 9-point Self-measured Plasma Glucose (SMPG) Profile

Participants measured plasma glucose values using the blood glucose meter at 9 time points: before breakfast, 90 min after start of breakfast, before lunch, 90 minutes after start of lunch, before dinner, 90 min after start of dinner, bedtime, at 4:00 am and before breakfast the following day. The mean of profile is defined as the area under the profile divided by measurement time and is calculated using the trapezoidal method. Change in mean of the 9-point SMPG profile from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in SMPG-mean Post Prandial Increments

Participants measured plasma glucose values using the blood glucose meter at 9 time points: before breakfast, 90 min after start of breakfast, before lunch, 90 minutes after start of lunch, before dinner, 90 min after start of dinner, bedtime, at 4:00 am and before breakfast the following day. Change in SMPG-mean postprandial increment over all meals from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Insulin Dose

The mean of actual daily total insulin dose after 26 weeks of treatment is presented.

Time frame: Week 26

SMPG-9-point Profile (Individual Points in the Profile)

Participants measured plasma glucose values using the blood glucose meter at 9 time points: before breakfast, 90 min after start of breakfast, before lunch, 90 minutes after start of lunch, before dinner, 90 min after start of dinner, bedtime, at 4:00 am and before breakfast the following day. SMPG-9-point profile (individual points in the profile) at week 26 is presented.

Time frame: Week 26

Change in Fasting High-density Lipoprotein (HDL) Cholesterol- Ratio to Baseline

Change in fasting HDL cholesterol (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Low-density Lipoprotein (LDL) Cholesterol- Ratio to Baseline

Change in fasting LDL cholesterol (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Very Low-density Lipoprotein (VLDL) Cholesterol- Ratio to Baseline

Change in fasting VLDL cholesterol (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Total Cholesterol- Ratio to Baseline

Change in fasting total cholesterol (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Triglycerides- Ratio to Baseline

Change in fasting triglycerides (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Free Fatty Acids- Ratio to Baseline

Change in fasting free fatty acids (measured in mmol/L) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting C-peptide- Ratio to Baseline

Change in fasting C-peptide (measured in nanomoles per liter (nmol/L)) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Insulin- Ratio to Baseline

Change in fasting insulin (measured in picomoles per liter (pmol/L)) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in Fasting Glucagon- Ratio to Baseline

Change in fasting glucagon (measured in picograms per milliliter (pg/mL)) from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Change in HOMA-B (Beta-cell Function)- Ratio to Baseline

Change in HOMA-B from baseline (week 0) to week 26 is presented as ratio to baseline.

Time frame: Week 0, week 26

Participants Who Achieved HbA1c < 7.0%, ADA Target (Yes/no)

Participants who achieved HbA1c \< 7.0%, ADA target (yes/no) is presented.

Time frame: Week 26

Participants Who Achieved HbA1c ≤ 6.5%, American Association of Clinical Endocrinologists (AACE) Target (Yes/no)

Participants who achieved HbA1c ≤ 6.5%, AACE target (yes/no) is presented.

Time frame: Week 26

Participants Who Achieved HbA1c < 7.0% and Change From Baseline in Body Weight Below or Equal to Zero

Participants who achieved HbA1c \< 7.0% and change from baseline in body weight below or equal to zero is presented.

Time frame: Week 26

Participants Who Achieved HbA1c ≤ 6.5% and Change From Baseline in Body Weight Below or Equal to Zero

Participants who achieved HbA1c ≤ 6.5% and change from baseline in body weight below or equal to zero is presented.

Time frame: Week 26

Participants Who Achieved HbA1c < 7.0% Without Treatment-emergent Severe or BG Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Participants who achieved HbA1c \< 7.0% at week 26 without treatment-emergent severe or BG confirmed hypoglycaemic episodes during the last 12 weeks of treatment is presented.

Time frame: Week 26

Participants Who Achieved HbA1c ≤ 6.5% Without Treatment-emergent Severe or BG Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Participants who achieved HbA1c ≤ 6.5% at week 26 without treatment-emergent severe or BG confirmed hypoglycaemic episodes during the last 12 weeks of treatment is presented.

Time frame: Week 26

Participants Who Achieved HbA1c < 7.0% and Change From Baseline in Body Weight Below or Equal to Zero and Without Treatment-emergent Severe or BG Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Participants who achieved HbA1c \< 7.0% and change from baseline in body weight below or equal to zero and without treatment-emergent severe or BG confirmed hypoglycaemic episodes during the last 12 weeks of treatment is presented.

Time frame: Week 26

Participants Who Achieved HbA1c ≤ 6.5% and Change From Baseline in Body Weight Below or Equal to Zero and Without Treatment-emergent Severe or BG Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Participants who achieved HbA1c ≤ 6.5% and change from baseline in body weight below or equal to zero and without treatment-emergent severe or BG confirmed hypoglycaemic episodes during the last 12 weeks of treatment is presented.

Time frame: Week 26

Number of Treatment-emergent Adverse Events (TEAEs)

A TEAE was defined as an adverse event with onset date on or after the first day of exposure to randomised treatment and no later than seven days after the last day of randomised treatment. If the event had onset date before the first day of exposure on randomised treatment and increased in severity during the treatment period and until 7 days after the last drug date, then this event was considered as a TEAE.

Time frame: Weeks 0-27

Number of Treatment-emergent Nocturnal Severe or BG Confirmed Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with or without symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Nocturnal hypoglycaemic episodes were episodes occurring between 00:01 and 05.59 a.m. both inclusive. Number of treatment-emergent nocturnal severe or BG confirmed hypoglycaemic episodes is presented.

Time frame: Weeks 0-27

Number of Treatment-emergent Severe or BG Confirmed Symptomatic Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Number of treatment-emergent severe or BG confirmed symptomatic hypoglycaemic episodes is presented.

Time frame: Weeks 0-27

Number of Treatment-emergent Nocturnal Severe or BG Confirmed Symptomatic Hypoglycaemic Episodes

Severe or BG confirmed hypoglycaemic episodes were defined as episodes that were severe according to the ADA classification (required assistance of another person to actively administer carbohydrate, glucagon, or take other corrective actions) or BG confirmed by a plasma glucose value \< 3.1 mmol/L with symptoms consistent with hypoglycaemia. Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Nocturnal hypoglycaemic episodes were episodes occurring between 00:01 and 05.59 a.m. both inclusive. Number of treatment-emergent nocturnal severe or BG confirmed symptomatic hypoglycaemic episodes is presented.

Time frame: Weeks 0-27

Number of Treatment-emergent Hypoglycaemic Episodes According to ADA Definition

Hypoglycaemic episodes were defined as treatment-emergent if the onset of the episode occurred on or after the first day of trial product administration, and no later than 7 calendar days after the last day on trial product. Number of treatment-emergent hypoglycaemic episodes according to ADA definition is presented.

Time frame: Weeks 0-27

Change in Physical Examination

Physical examination parameters are categorised as cardiovascular system; central and peripheral nervous system; gastrointestinal system including mouth; general appearance; head, ears, eyes, nose, throat, neck; lymph node palpation; musculoskeletal system; respiratory system; skin and thyroid gland. The number of participants assessed as normal, abnormal not clinically significant (NCS) and abnormal clinically significant (CS) at week -2 and week 26 is presented.

Time frame: Week -2, week 26

Eye Examination

Dilated fundoscopy or fundus photography was performed by the investigator at week -2 and week 26. The results of the examination were interpreted for each eye (left/right) are categorised as normal, abnormal NCS or abnormal CS. Number of participants in each category at week -2 and week 26 were presented.

Time frame: Week -2, week 26

Change in Electrocardiogram (ECG)

The ECG was assessed by the investigator at baseline (week -2) and week 26 and categorised as normal, abnormal NCS or abnormal CS. Number of participants in each ECG category at baseline and week 26 were presented.

Time frame: Week -2, week 26

Change in Pulse

Change in pulse from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Blood Pressure (Systolic and Diastolic Blood Pressure)

Change in blood pressure (systolic and diastolic blood pressure) from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Biochemical Parameter- Amylase, Lipase, Creatinine Kinase, Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP)

Change in amylase, lipase, creatinine kinase, ALT, AST, ALP from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Biochemical Parameter-calcium (Total), Albumin Corrected Calcium, Potassium, Sodium, Urea

Change in calcium (total), albumin corrected calcium, potassium, sodium, urea from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Albumin

Change in albumin from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Total Bilirubin

Change in total bilirubin from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Creatinine

Change in creatinine from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Total Protein

Change in total protein from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Haematocrit

Change in haematocrit from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Haemoglobin

Change in haemoglobin from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Leukocytes and Thrombocytes

Change in leukocytes and thrombocytes from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Erythrocytes

Change in erythrocytes from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Basophils

Change in basophils from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Eosinophils

Change in eosinophils from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Lymphocytes

Change in lymphocytes from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Monocytes

Change in monocytes from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Haematological Parameter- Neutrophils

Change in neutrophils from baseline (week 0) to week 26 is presented.

Time frame: Week 0, week 26

Change in Calcitonin

Calcitonin levels were measured and were categorised as low, normal or high. Number of participants in each category at week 0 and week 26 were presented.

Time frame: Week 0, week 26

Urinalysis (Erythrocytes, Protein, Glucose and Ketones)

The urinalysis was the measurements of protein, glucose, erythrocytes and ketones at week 0 and week 26 and categorised as negative, trace, 1+, 2+ and 3+. Number of participants in each category at week 0 and week 26 are presented.

Time frame: Week 0, week 26

Anti-insulin Degludec Specific Antibodies

Serum samples were analysed for the presence of anti-insulin degludec specific antibodies. Results are presented as percentage of bound radioactivity-labelled insulin/total added radioactivity-labelled insulin (%B/T).

Time frame: Week 27

Antibodies Cross-reacting to Human Insulin

Serum samples were analysed for the presence of antibodies cross-reacting to human insulin. Results are presented as percentage of bound radioactivity-labelled insulin/total added radioactivity-labelled insulin (%B/T).

Time frame: Week 27

Total Insulin Antibodies

Serum samples were analysed for the presence of total insulin antibodies. Results are presented as percentage of bound radioactivity-labelled insulin/total added radioactivity-labelled insulin (%B/T).

Time frame: Week 27

Occurrence of Anti-liraglutide Antibodies (Yes/no)

This outcome measure is only applicable for the Insulin degludec/liraglutide treatment arm. Number of participants who measured with anti-liraglutide antibodies at week 27 are presented.

Time frame: Week 27

Occurrence of Anti-liraglutide Antibodies Cross Reacting Native Glucagon-like Peptide-1 (GLP-1)

This outcome measure is only applicable for the Insulin degludec/liraglutide treatment arm. Number of participants who measured with anti-liraglutide antibodies cross reacting native GLP-1 at week 27 are presented.

Time frame: Week 27

Occurrence of Neutralising Liraglutide Antibodies

This outcome measure is only applicable for the Insulin degludec/liraglutide treatment arm. Number of participants who measured with neutralising liraglutide antibodies at week 27 are presented.

Time frame: Week 27

Occurrence of Neutralising Liraglutide Antibodies Cross Reacting Native GLP-1

This outcome measure is only applicable for the Insulin degludec/liraglutide treatment arm. Number of participants who measured with neutralising liraglutide antibodies cross reacting native GLP-1 at week 27 are presented.

Time frame: Week 27