parallel randomized trial
PREVAIL
Preserving Beta-cell Function in Type 2 Diabetes With Exenatide and Insulin (PREVAIL)
Design
Conduct and analysis
Arms
| Arm | Treatment | Background | Randomized | Analyzed | Completed treatment |
|---|---|---|---|---|---|
| A1 | Standard care or no added treatment Glargine | insulin glargine at bedtime from 0.12 U/kg titrated to fasting glucose 5.3 mmol/L or less; lifestyle: standard | 33 | 33 | |
| A2 | Insulin lispro (prandial) Glargine + Lispro | insulin glargine at bedtime titrated to fasting glucose 5.3 mmol/L or less; lifestyle: standard | 35 | 35 | |
| A3 | Exenatide 10 ug subcutaneous twice daily Glargine + Exenatide | insulin glargine at bedtime titrated to fasting glucose 5.3 mmol/L or less; lifestyle: standard | 35 | 34 |
Baseline characteristics
As printed in the trial reports or registry, per arm or for the whole trial.
| Characteristic | Statistic | Standard care or no added treatment A1 | Insulin lispro (prandial) A2 | Exenatide 10 ug subcutaneous twice daily A3 | Whole trial ALL |
|---|---|---|---|---|---|
| age | mean (years) | 58 | 59 | 56 | |
| age | sd (years) | 10 | 9 | 10 | |
| bmi | mean (kg/m2) | 32.3 | 32.9 | 31.7 | |
| bmi | sd (kg/m2) | 6.6 | 8.4 | 7.6 | |
| diabetes duration | median (years) | 3.0 | 4.0 | 3.9 | |
| diabetes duration | q1 (years) | 1.9 | 1.9 | 1.5 | |
| diabetes duration | q3 (years) | 5.5 | 5.8 | 5.3 | |
| established cvd | n | 1 | 2 | 1 | |
| established cvd | percent | 4 | 8 | 4 | |
| female | n | 44 | |||
| hba1c | mean (percent) | 6.6 | 6.5 | 6.6 | |
| hba1c | sd (percent) | 0.7 | 0.8 | 0.6 | |
| other male | n | 19 | 16 | 23 | |
| other male | percent | 57.6 | 45.7 | 67.7 | |
| other race other | n | 8 | 10 | 8 | |
| other race other | percent | 24.2 | 28.6 | 23.5 | |
| other race south asian | n | 2 | 4 | 6 | |
| other race south asian | percent | 6.1 | 11.4 | 17.7 | |
| sbp | mean (mmHg) | 133 | 135 | 137 | |
| sbp | sd (mmHg) | 18.7 | 15.2 | 15.5 | |
| waist | mean (cm) | 108.4 | 104.7 | 107.0 | |
| waist | sd (cm) | 14.5 | 15.0 | 16.9 | |
| weight | mean (kg) | 93.7 | 88.9 | 93.0 | |
| weight | sd (kg) | 18.1 | 18.2 | 23.3 | |
| white | n | 23 | 21 | 20 | |
| white | percent | 69.7 | 60.0 | 58.8 |
Analyses this trial contributes to
- HbA1c changeType 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- HbA1c changeType 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- Body weight change in kilograms (diabetes)Type 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- Body weight change in kilograms (diabetes)Type 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Level 2 or 3 hypoglycemia (participants)Type 2 diabetes (adults); longest follow-up; network meta-analysis
- Systolic blood pressure changeType 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- Systolic blood pressure changeType 2 diabetes (adults); weeks 20 to 36 (target week 26); network meta-analysis
- VomitingType 2 diabetes (adults); longest follow-up; network meta-analysis
- VomitingType 2 diabetes (adults); longest follow-up; network meta-analysis
Results
48 adjudicated result lines, grouped by outcome. Open an outcome to see its values.
HbA1c change (9 lines; O01)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| 8 | A1 | final | 6.2 percent | 0.07 | 33 | not stated; modified itt; R0010144:Table 2 | |
| 8 | A1 | change | -0.3 percent | -0.5 to -0.1 | 33 | not stated; modified itt; R0010144:Results | |
| 8 | A2 | final | 6.0 percent | 0.06 | 35 | not stated; modified itt; R0010144:Table 2 | |
| 8 | A2 | change | -0.5 percent | -0.7 to -0.3 | 35 | not stated; modified itt; R0010144:Results | |
| 8 | A3 | final | 5.9 percent | 0.07 | 34 | not stated; modified itt; R0010144:Table 2 | |
| 8 | A3 | change | -0.7 percent | -0.8 to -0.5 | 34 | not stated; modified itt; R0010144:Results | |
| 20 | A1 | final | 6.7 percent | 0.1 | 33 | not stated; modified itt; R0010144:Table 2 | |
| 20 | A2 | final | 6.6 percent | 0.09 | 35 | not stated; modified itt; R0010144:Table 2 | |
| 20 | A3 | final | 6.6 percent | 0.1 | 34 | not stated; modified itt; R0010144:Table 2 |
Body weight change in kilograms (diabetes) (6 lines; O02)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| 8 | A1 | final | 93.5 kg | 0.4 | 33 | not stated; modified itt; R0010144:Table 2 | |
| 8 | A2 | final | 92.7 kg | 0.4 | 35 | not stated; modified itt; R0010144:Table 2 | |
| 8 | A3 | final | 90.9 kg | 0.4 | 34 | not stated; modified itt; R0010144:Table 2 | |
| 20 | A1 | final | 92.3 kg | 0.6 | 33 | not stated; modified itt; R0010144:Table 2 | |
| 20 | A2 | final | 91.8 kg | 0.5 | 35 | not stated; modified itt; R0010144:Table 2 | |
| 20 | A3 | final | 90.8 kg | 0.5 | 34 | not stated; modified itt; R0010144:Table 2 |
Level 2 or 3 hypoglycemia (participants) (15 lines; O04)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| A1 | events | 1 / 33 | not stated; modified itt; R0010144:Table 3 | ||||
| A1 | events | 15 / 33 | not stated; modified itt; R0010144:Table 3 | ||||
| A1 | events | 10 / 33 | not stated; modified itt; R0010144:Table 3 | ||||
| A1 | events | 0 / 33 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A1 | events | 16 / 33 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A2 | events | 26 / 35 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A2 | events | 8 / 35 | not stated; modified itt; R0010144:Table 3 | ||||
| A2 | events | 0 / 35 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A2 | events | 12 / 35 | not stated; modified itt; R0010144:Table 3 | ||||
| A2 | events | 26 / 35 | not stated; modified itt; R0010144:Table 3 | ||||
| A3 | events | 0 / 34 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A3 | events | 5 / 34 | not stated; modified itt; R0010144:Table 3 | ||||
| A3 | events | 22 / 34 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A3 | events | 6 / 34 | not stated; modified itt; R0010144:Table 3 | ||||
| A3 | events | 23 / 34 | not stated; modified itt; R0010144:Table 3 |
Level 2 or 3 hypoglycemia (episode rate) (3 lines; O04B)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| A1 | rate | 0.6 | not stated; modified itt; R0010144:Table 3 | ||||
| A2 | rate | 2.1 | not stated; modified itt; R0010144:Table 3 | ||||
| A3 | rate | 1.1 | not stated; modified itt; R0010144:Table 3 |
Systolic blood pressure change (9 lines; O05)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| 8 | A1 | change | -3.7 mmHg | -10.2 to 2.7 | 24 | not stated; other; R0009210:Table 2 | |
| 8 | A1 | final | 130 mmHg | 2.7 | not stated; other; R0009210:Table 3 | ||
| 8 | A2 | change | -2.3 mmHg | -9.0 to 4.5 | 24 | not stated; other; R0009210:Table 2 | |
| 8 | A2 | final | 133 mmHg | 2.7 | not stated; other; R0009210:Table 3 | ||
| 8 | A3 | change | -8.1 mmHg | -13.9 to -2.4 | 25 | not stated; other; R0009210:Table 2 | |
| 8 | A3 | final | 128 mmHg | 2.6 | not stated; other; R0009210:Table 3 | ||
| 20 | A1 | final | 133 mmHg | 2.1 | not stated; other; R0009210:Table 3 | ||
| 20 | A2 | final | 132 mmHg | 2.0 | not stated; other; R0009210:Table 3 | ||
| 20 | A3 | final | 128 mmHg | 1.9 | not stated; other; R0009210:Table 3 |
Vomiting (3 lines; O27B)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| A1 | events | 0 / 33 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A2 | events | 0 / 35 | not stated; modified itt; R0010144:Supplementary Table 1 | ||||
| A3 | events | 1 / 34 | not stated; modified itt; R0010144:Supplementary Table 1 |
Intestinal obstruction or ileus (3 lines; O37B)
| Week | Arm | Statistic | Estimate | SE or SD | 95% CI | Events / N | Detail |
|---|---|---|---|---|---|---|---|
| A1 | events | 0 / 33 | not stated; modified itt; bowel obstruction; R0010144:Supplementary Table 1 | ||||
| A2 | events | 1 / 35 | not stated; modified itt; bowel obstruction; R0010144:Supplementary Table 1 | ||||
| A3 | events | 0 / 34 | not stated; modified itt; bowel obstruction; R0010144:Supplementary Table 1 |