Extended-release(ER) niacin/Laropiprant (MK-0524) Combination tablet

Participants had AST and ALT levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of either AST or ALT that was 3 x ULN or greater were recorded. The AST ULNs for males and females were 43 U/L and 36 U/L, respectively. The ALT ULNs for males and females were 40 U/L and 33 U/L, respectively.

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater and had associated muscle symptoms present within +/- 7 days were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater and had associated muscle symptoms present within +/- 7 days that were reported as at least possibly related to study drug were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

Participants had fasting glucose levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had the new diagnosis of impaired fasting blood glucose were recorded. A pre-defined set of MedDRA terms was used to identify participants whose glycemic status became 'impaired' during the course of treatment (from clinical adverse experience reports). The MedDRA terms were as follows: blood glucose increased, blood glucose abnormal, glucose tolerance decreased, glucose tolerance test abnormal, carbohydrate tolerance decreased, glucose tolerance impaired, hyperglycaemia, impaired fasting glucose, impaired insulin secretion, metabolic syndrome, insulin resistance, insulin resistance syndrome.

Participants who with newly diagnosed of diabetes were recorded. A participant was classified as having new onset diabetes if they experienced an adverse Event (AE) related to a diagnosis of diabetes (based on a pre-defined set of Medical Dictionary for Regulatory Activities [MedDRA] terms), or if they started taking an anti-diabetic medication during the course of the study. The MedDRA terms were as follows: diabetes mellitus, diabetes mellitus insulin-dependent, diabetes mellitus non-insulin dependent, insulin-requiring type II diabetes mellitus, insulin resistant diabetes, diabetes with hyperosmolarity, latent autoimmune diabetes in adults.

Participants with diabetes at baseline and who experienced a worsening of the diabetes identified through adverse event reports using a pre-defined set of terms and/or increasing dose/adding a new anti-diabetic medication.

Select serious adverse cardiovascular events and all-cause mortality that occurred during the treatment phase of the study were adjudicated by an expert committee external to the sponsor. Those events confirmed by the committee as cardiovascular events were recorded

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A clinical AE was an AE reported as a result of a clinical examination or reported by the participant.

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A laboratory AE was an AE reported as a result of a laboratory assessment or test

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A clinical AE was an AE reported as a result of a clinical examination or reported by the participant. Participants who were discontinued from the study due to a clinical AE were recorded.

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A laboratory AE was an AE reported as a result of a laboratory assessment or test. Participants who were discontinued from the study due to a laboratory AE were recorded.

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. Non-serious Hepatitis-related AEs were identified by a collective review using the following pre-specified set of preferred terms: cholestasis, hepatic necrosis, hepatocellular damage, cytolytic hepatitis, hepatitis, hepatomegaly, jaundice, hepatic failure, hepatitis cholestatic, jaundice cholestatic, hepatitis fulminant, hyperbilirubinaemia, jaundice hepatocellular, ocular icterus, yellow skin, hepatic function abnormal, acute hepatic failure, subacute hepatic failure, hepatitis acute, hepatitis toxic, hepatotoxicity, and mixed hepatocellular-cholestatic injury.

Blood samples taken at baseline (Day1 of Period I) and after 4 weeks of treatment to determine the LDL-C levels. The change from baseline after 4 weeks of treatment was recorded.

Blood samples taken at baseline (Day1 of Period I) and after 4 weeks of treatment to determine the HDL-C levels. The change from baseline after 4 weeks of treatment was recorded.

After a 2-week placebo run-in, participants will receive MK-0524B 0.9g/40 mg combination tablet for 4 weeks, then MK-0524B 1.8g /40 mg combination tablet for 8 weeks. Participant is then co-administered MK-0524A 2 g + simvastatin 40 mg for 8 weeks.

After a 2-week placebo run-in, participants will be co-administered MK-0524A 1g + simvastatin 40 mg for 4 weeks, then co-administration MK-0524A 2g +simvastatin 40 mg for 8 weeks. Participant then receives MK-0524B 1.8 g/40 mg combination tablet for 8 weeks.

Total of all reporting groups

Participants who received MK-0524A 2g+Simvastatin 20mg for 8 weeks in either Period II or Period III regardless of randomly assigned sequence.

Participants who received MK-0524B 1.8g/40mg for 8 weeks in either Period II or Period III treatment period regardless of randomly assigned sequence.

Participants who received MK-0524A 2g+Simvastatin 40mg for 8 weeks in either Period II or Period III regardless of randomly assigned sequence.

Blood samples taken at baseline (Week 4 for Period II; Week 12 for Period III) and after 8 weeks of treatment during each period to determine the HDL-C levels. The change from baseline after 8 weeks of treatment was recorded.

Participants who completed the study and had respective endpoint data available at baseline and end of each treatment period. End of period value was defined as measurements collected on the same date as the corresponding end of period visit date. Results were reported by dose of study drug taken and not by randomly assigned sequence.

Participants had AST and ALT levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of either AST or ALT that was 3 x ULN or greater were recorded. The AST ULNs for males and females were 43 U/L and 36 U/L, respectively. The ALT ULNs for males and females were 40 U/L and 33 U/L, respectively.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater and had associated muscle symptoms present within +/- 7 days were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants had CK levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had an assessment of CK that was 10 x ULN or greater and had associated muscle symptoms present within +/- 7 days that were reported as at least possibly related to study drug were recorded. The ULNs for males and females were 207 U/L and 169 U/L, respectively.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants had fasting glucose levels assessed during Period I (4 weeks ) throughout each 8 week treatment period (20 weeks total). Participants who had the new diagnosis of impaired fasting blood glucose were recorded. A pre-defined set of MedDRA terms was used to identify participants whose glycemic status became 'impaired' during the course of treatment (from clinical adverse experience reports). The MedDRA terms were as follows: blood glucose increased, blood glucose abnormal, glucose tolerance decreased, glucose tolerance test abnormal, carbohydrate tolerance decreased, glucose tolerance impaired, hyperglycaemia, impaired fasting glucose, impaired insulin secretion, metabolic syndrome, insulin resistance, insulin resistance syndrome.

All participants who had normal fasting blood glucose levels at baseline and who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants who with newly diagnosed of diabetes were recorded. A participant was classified as having new onset diabetes if they experienced an adverse Event (AE) related to a diagnosis of diabetes (based on a pre-defined set of Medical Dictionary for Regulatory Activities [MedDRA] terms), or if they started taking an anti-diabetic medication during the course of the study. The MedDRA terms were as follows: diabetes mellitus, diabetes mellitus insulin-dependent, diabetes mellitus non-insulin dependent, insulin-requiring type II diabetes mellitus, insulin resistant diabetes, diabetes with hyperosmolarity, latent autoimmune diabetes in adults.

All participants without diabetes at baseline and who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Participants with diabetes at baseline and who experienced a worsening of the diabetes identified through adverse event reports using a pre-defined set of terms and/or increasing dose/adding a new anti-diabetic medication.

All participants with diabetes at baseline and who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Select serious adverse cardiovascular events and all-cause mortality that occurred during the treatment phase of the study were adjudicated by an expert committee external to the sponsor. Those events confirmed by the committee as cardiovascular events were recorded

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A clinical AE was an AE reported as a result of a clinical examination or reported by the participant.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A laboratory AE was an AE reported as a result of a laboratory assessment or test

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A clinical AE was an AE reported as a result of a clinical examination or reported by the participant. Participants who were discontinued from the study due to a clinical AE were recorded.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined, where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover). Excludes 6 participants who had an AE that began during the placebo run-in.

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. A laboratory AE was an AE reported as a result of a laboratory assessment or test. Participants who were discontinued from the study due to a laboratory AE were recorded.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of the product, whether or not considered related to the use of the product. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which was temporally associated with the use of the product, was also an AE. Non-serious Hepatitis-related AEs were identified by a collective review using the following pre-specified set of preferred terms: cholestasis, hepatic necrosis, hepatocellular damage, cytolytic hepatitis, hepatitis, hepatomegaly, jaundice, hepatic failure, hepatitis cholestatic, jaundice cholestatic, hepatitis fulminant, hyperbilirubinaemia, jaundice hepatocellular, ocular icterus, yellow skin, hepatic function abnormal, acute hepatic failure, subacute hepatic failure, hepatitis acute, hepatitis toxic, hepatotoxicity, and mixed hepatocellular-cholestatic injury.

All participants who received at least 1 dose of study drug. Safety analysis was based on the experiences accumulated during Periods I/II combined (pre-crossover), where the study follows a parallel design. A separate safety analysis was performed for Period III (post-crossover).

Blood samples taken at baseline (Day1 of Period I) and after 4 weeks of treatment to determine the LDL-C levels. The change from baseline after 4 weeks of treatment was recorded.

Participants that completed the study and had respective endpoint data available at baseline and end of each treatment period. End of period value was defined as measurements collected on the same date as the corresponding end of period visit date. Results were reported by dose of study drug taken and not by randomly assigned sequence.

Blood samples taken at baseline (Day1 of Period I) and after 4 weeks of treatment to determine the HDL-C levels. The change from baseline after 4 weeks of treatment was recorded.

Participants that completed the study and had respective endpoint data available at baseline and end of each treatment period. End of period value was defined as measurements collected on the same date as the corresponding end of period visit date. Results were reported by dose of study drug taken and not by randomly assigned sequence.

Participants who received MK-0524B 1g + Simvastatin 20mg and MK-0524B 2g+ Simvastatin 20mg during Periods I/II

Participants who received MK-0524B 1g + Simvastatin 20mg and MK-0524B 2g+ Simvastatin 20mg during Period III

Participants who received MK-0524B 1.8g/20mg during Periods III

Participants who received MK-0524B 0.9g/40mg and MK-0524B 1.8g/40mg during Periods I/II

Participants who received MK-0524A 1g + Simvastatin 40mg and MK-0524A 2g+ Simvastatin 40mg during Periods I/II

Participants who received MK-0524A 1g + Simvastatin 40mg and MK-0524A 2g+ Simvastatin 40mg during Period III

Participants who received MK-0524B 1.8g/40mg during Periods III