CLINICAL PHARMACOLOGY
Mechanism Of Action
SGLT2 is the predominant transporter responsible for reabsorption of glucose from the glomerular
filtrate back into the circulation. Ertugliflozin is an inhibitor of SGLT2. By inhibiting SGLT2, ertugliflozin
reduces renal reabsorption of filtered glucose and lowers the renal threshold for glucose, and thereby
increases urinary glucose excretion.
Pharmacodynamics
Urinary Glucose Excretion And Urinary Volume
Dose-dependent increases in the amount of glucose excreted in urine were observed in healthy
subjects and in patients with type 2 diabetes mellitus following single- and multiple-dose administration of
ertugliflozin. Dose-response modeling indicates that ertugliflozin 5 mg and 15 mg result in near maximal
urinary glucose excretion (UGE). Enhanced UGE is maintained after multiple-dose administration. UGE
with ertugliflozin also results in increases in urinary volume.
Cardiac Electrophysiology
The effect of STEGLATRO on QTc interval was evaluated in a Phase 1 randomized, placebo- and
positive-controlled 3-period crossover study in 42 healthy subjects. At 6.7 times the therapeutic
exposures with maximum recommended dose, STEGLATRO does not prolong QTc to any clinically
relevant extent.
Pharmacokinetics
The pharmacokinetics of ertugliflozin are similar in healthy subjects and patients with type 2
diabetes mellitus. The steady state mean plasma AUC and Cmax were 398 ng·hr/mL and 81.3 ng/mL,
respectively, with 5 mg ertugliflozin once-daily treatment, and 1,193 ng·hr/mL and 268 ng/mL,
respectively, with 15 mg ertugliflozin once-daily treatment. Steady-state is reached after 4 to 6 days of
once-daily dosing with ertugliflozin. Ertugliflozin does not exhibit time-dependent pharmacokinetics and
accumulates in plasma up to 10-40% following multiple dosing.
Absorption
Following single-dose oral administration of 5 mg and 15 mg of ertugliflozin, peak plasma
concentrations (median Tmax) of ertugliflozin occur at 1 hour postdose under fasted conditions. Plasma
Cmax and AUC of ertugliflozin increase in a dose-proportional manner following single doses from 0.5 mg
(0.1 times the lowest recommended dose) to 300 mg (20 times the highest recommended dose) and
following multiple doses from 1 mg (0.2 times the lowest recommended dose) to 100 mg (6.7 times the
highest recommended dose). The absolute oral bioavailability of ertugliflozin following administration of a
15 mg dose is approximately 100%.
Effect of Food
Administration of STEGLATRO with a high-fat and high-calorie meal decreases ertugliflozin Cmax by
29% and prolongs Tmax by 1 hour, but does not alter AUC as compared with the fasted state. The
observed effect of food on ertugliflozin pharmacokinetics is not considered clinically relevant, and
ertugliflozin may be administered with or without food. In Phase 3 clinical trials, STEGLATRO was
administered without regard to meals.
Distribution
The mean steady-state volume of distribution of ertugliflozin following an intravenous dose is
85.5 L. Plasma protein binding of ertugliflozin is 93.6% and is independent of ertugliflozin plasma
concentrations. Plasma protein binding is not meaningfully altered in patients with renal or hepatic
impairment. The blood-to-plasma concentration ratio of ertugliflozin is 0.66.
Elimination
Metabolism
Metabolism is the primary clearance mechanism for ertugliflozin. The major metabolic pathway for
ertugliflozin is UGT1A9 and UGT2B7-mediated O-glucuronidation to two glucuronides that are
pharmacologically inactive at clinically relevant concentrations. CYP-mediated (oxidative) metabolism of
ertugliflozin is minimal (12%).
Excretion
The mean systemic plasma clearance following an intravenous 100 μg dose was 11.2 L/hr. The
mean elimination half-life in type 2 diabetic patients with normal renal function was estimated to be
16.6 hours based on the population pharmacokinetic analysis. Following administration of an oral
[14C]-ertugliflozin solution to healthy subjects, approximately 40.9% and 50.2% of the drug-related
radioactivity was eliminated in feces and urine, respectively. Only 1.5% of the administered dose was
excreted as unchanged ertugliflozin in urine and 33.8% as unchanged ertugliflozin in feces, which is likely
due to biliary excretion of glucuronide metabolites and subsequent hydrolysis to parent.
Specific Populations
Patients With Renal Impairment
In a Phase 1 clinical pharmacology study in patients with type 2 diabetes mellitus and mild,
moderate, or severe renal impairment (as determined by eGFR), following a single-dose administration of
15 mg STEGLATRO, the mean increases in AUC of ertugliflozin were 1.6-, 1.7-, and 1.6-fold,
respectively, for mild, moderate and severe renally impaired patients, compared to subjects with normal
renal function. These increases in ertugliflozin AUC are not considered clinically meaningful. The 24-hour
urinary glucose excretion declined with increasing severity of renal impairment [see WARNINGS AND PRECAUTIONS and Use In Specific Populations]. The plasma protein binding of ertugliflozin was
unaffected in patients with renal impairment.
Patients With Hepatic Impairment
Moderate hepatic impairment (based on the Child-Pugh classification) did not result in an increase
in exposure of ertugliflozin. The AUC of ertugliflozin decreased by approximately 13%, and Cmax
decreased by approximately 21% compared to subjects with normal hepatic function. This decrease in
ertugliflozin exposure is not considered clinically meaningful. There is no clinical experience in patients
with Child-Pugh class C (severe) hepatic impairment. The plasma protein binding of ertugliflozin was
unaffected in patients with moderate hepatic impairment [see Use In Specific Populations].
Pediatric Patients
No studies with STEGLATRO have been performed in pediatric patients.
Effects Of Age, Body Weight, Gender, And Race
Based on a population pharmacokinetic analysis, age, body weight, gender, and race do not have a
clinically meaningful effect on the pharmacokinetics of ertugliflozin.
Drug Interaction Studies
In Vitro Assessment Of Drug Interactions
In in vitro studies, ertugliflozin and ertugliflozin glucuronides did not inhibit CYP450 isoenzymes
(CYPs) 1A2, 2C9, 2C19, 2C8, 2B6, 2D6, or 3A4, and did not induce CYPs 1A2, 2B6, or 3A4. Ertugliflozin
was not a time-dependent inhibitor of CYP3A in vitro. Ertugliflozin did not inhibit UGT1A6, 1A9, or 2B7 in
vitro and was a weak inhibitor (IC50 >39 μM) of UGT1A1 and 1A4. Ertugliflozin glucuronides did not inhibit
UGT1A1, 1A4, 1A6, 1A9, or 2B7 in vitro. Overall, ertugliflozin is unlikely to affect the pharmacokinetics of
drugs eliminated by these enzymes. Ertugliflozin is a substrate of P-glycoprotein (P-gp) and breast cancer
resistance protein (BCRP) transporters and is not a substrate of organic anion transporters (OAT1,
OAT3), organic cation transporters (OCT1, OCT2), or organic anion transporting polypeptides (OATP1B1,
OATP1B3). Ertugliflozin or ertugliflozin glucuronides do not meaningfully inhibit P-gp, OCT2, OAT1, or
OAT3 transporters, or transporting polypeptides OATP1B1 and OATP1B3, at clinically relevant
concentrations. Overall, ertugliflozin is unlikely to affect the pharmacokinetics of concurrently
administered medications that are substrates of these transporters.
In Vivo Assessment Of Drug Interactions
No dose adjustment of STEGLATRO is recommended when coadministered with commonly
prescribed medicinal products. Ertugliflozin pharmacokinetics were similar with and without
coadministration of metformin, glimepiride, sitagliptin, and simvastatin in healthy subjects (see Figure 1).
Coadministration of ertugliflozin with multiple doses of 600 mg once-daily rifampin (an inducer of UGT
and CYP enzymes) resulted in approximately 39% and 15% mean reductions in ertugliflozin AUC and
Cmax, respectively, relative to ertugliflozin administered alone. These changes in exposure are not
considered clinically relevant. Ertugliflozin had no clinically relevant effect on the pharmacokinetics of
metformin, glimepiride, sitagliptin, and simvastatin when coadministered in healthy subjects (see
Figure 2). Physiologically-based PK (PBPK) modeling suggests that coadministration of mefenamic acid
(UGT inhibitor) may increase the AUC and Cmax of ertugliflozin by 1.51- and 1.19-fold, respectively. These
predicted changes in exposure are not considered clinically relevant.
Figure 1: Effects of Other Drugs on the Pharmacokinetics of Ertugliflozin
Figure 2: Effects of Ertugliflozin on the Pharmacokinetics of Other Drugs
Clinical Studies
Overview Of Clinical Studies In Patients With Type 2 Diabetes Mellitus
The efficacy and safety of STEGLATRO have been studied in 7 multicenter, randomized, doubleblind,
placebo- or active comparator-controlled, clinical studies involving 4,863 patients with type 2
diabetes mellitus. These studies included White, Hispanic, Black, Asian, and other racial and ethnic
groups, and patients with an average age of approximately 57.8 years.
STEGLATRO has been studied as monotherapy and in combination with metformin and/or a
dipeptidyl peptidase 4 (DPP-4) inhibitor. STEGLATRO has also been studied in combination with
antidiabetic medications, including insulin and a sulfonylurea, in patients with type 2 diabetes mellitus with
moderate renal impairment.
In patients with type 2 diabetes mellitus treatment with STEGLATRO reduced hemoglobin A1c
(HbA1c) compared to placebo.
In patients with type 2 diabetes mellitus treated with STEGLATRO, the reduction in HbA1c was
generally similar across subgroups defined by age, sex, race, geographic region, baseline body mass
index (BMI), and duration of type 2 diabetes mellitus. In patients with type 2 diabetes mellitus and
moderate renal impairment, treatment with STEGLATRO did not result in a reduction in HbA1c compared
to placebo.
Clinical Study Of Monotherapy Use Of STEGLATRO In Patients With Type 2 Diabetes Mellitus
A total of 461 patients with type 2 diabetes mellitus inadequately controlled (HbA1c between 7%
and 10.5%) on diet and exercise participated in a randomized, double-blind, multi-center, 26-week,
placebo-controlled study (NCT01958671) to evaluate the efficacy and safety of STEGLATRO
monotherapy. These patients, who were either treatment naïve or not receiving any background
antihyperglycemic treatment ≥8 weeks, entered a 2-week, single-blind, placebo run-in period and were
randomized to placebo, STEGLATRO 5 mg, or STEGLATRO 15 mg, administered once daily.
At Week 26, treatment with STEGLATRO at 5 mg or 15 mg daily provided statistically significant
reductions in HbA1c compared to placebo. STEGLATRO also resulted in a greater proportion of patients
achieving an HbA1c <7% compared with placebo (see Table 4 and Figure 3).
Table 4: Results at Week 26 from a Placebo-Controlled Monotherapy Study of STEGLATRO in
Patients with Type 2 Diabetes Mellitus*
|
Placebo |
STEGLATRO 5 mg |
STEGLATRO 15 mg |
HbA1c (%) |
N = 153 |
N = 155 |
N = 151 |
Baseline (mean) |
8.1 |
8.2 |
8.4 |
Change from baseline (LS mean†) |
-0.2 |
-0.7 |
-0.8 |
Difference from placebo (LS mean†, 95% CI) |
|
-0.6‡ (-0.8, -0.4) |
-0.7‡ (-0.9, -0.4) |
Patients [N (%)] with HbA1c <7% |
26 (16.9) |
47 (30.1) |
59 (38.8) |
FPG (mg/dL) |
N = 150 |
N = 151 |
N = 149 |
Baseline (mean) |
180.2 |
180.9 |
179.1 |
Change from baseline (LS mean†) |
-11.6 |
-31.0 |
-36.4 |
Difference from placebo (LS mean†, 95% CI) |
|
-19.4‡ (-27.6, -11.2) |
-24.8‡ (-33.2, -16.4) |
* N includes all randomized and treated patients with a baseline measurement of the outcome variable. At Week 26, the
primary HbA1c endpoint was missing for 23%, 11%, and 16% of patients, and during the trial, rescue medication was initiated
by 25%, 2%, and 3% of patients randomized to placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively. Missing
Week 26 measurements were imputed using multiple imputation with a mean equal to the baseline value of the patient.
Results include measurements collected after initiation of rescue medication. For those patients who did not receive rescue
medication and had values measured at 26 weeks, the mean changes from baseline for HbA1c were -0.1%, -0.8%, and -1.0%
for placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively.
† Intent-to-treat analysis using ANCOVA adjusted for baseline value, prior antihyperglycemic medication, and baseline eGFR.
‡ p<0.001 compared to placebo. |
The mean baseline body weight was 94.2 kg, 94.0 kg, and 90.6 kg in the placebo, STEGLATRO
5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from baseline to Week 26
were -1.0 kg, -3.0 kg, and -3.1 kg in the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg groups,
respectively. The difference from placebo (95% CI) for STEGLATRO 5 mg was -2.0 kg (-2.8, -1.2) and for
STEGLATRO 15 mg was -2.1 kg (-2.9, -1.3).
Figure 3: HbA1c (%) Change Over Time in a 26-Week Placebo-Controlled Monotherapy Study of
STEGLATRO in Patients with Type 2 Diabetes Mellitus*
* Data to the left of the vertical line are observed means (non-model-based) excluding values occurring post glycemic rescue. Data to the right of the vertical line represent the final Week 26 data, including all values regardless of use of glycemic rescue medication and use of study drug, with missing Week 26 values imputed using multiple imputation (26-MI) with a mean equal to the baseline value of the patient (see Table 4).
Clinical Studies Of Combination Therapy Use Of STEGLATRO In Patients With Type 2
Diabetes Mellitus
Add-On Combination Therapy With Metformin
A total of 621 patients with type 2 diabetes mellitus inadequately controlled (HbA1c between 7%
and 10.5%) on metformin monotherapy (≥1,500 mg/day for ≥8 weeks) participated in a randomized,
double-blind, multi-center, 26-week, placebo-controlled study (NCT02033889) to evaluate the efficacy
and safety of STEGLATRO in combination with metformin. Patients entered a 2-week, single-blind,
placebo run-in, and were randomized to placebo, STEGLATRO 5 mg, or STEGLATRO 15 mg
administered once daily in addition to continuation of background metformin therapy.
At Week 26, treatment with STEGLATRO at 5 mg or 15 mg daily provided statistically significant
reductions in HbA1c compared to placebo. STEGLATRO also resulted in a greater proportion of patients
achieving an HbA1c <7% compared to placebo (see Table 5).
Table 5: Results at Week 26 from a Placebo-Controlled Study for STEGLATRO Used in
Combination with Metformin in Patients with Type 2 Diabetes Mellitus*
|
Placebo |
STEGLATRO 5 mg |
STEGLATRO 15 mg |
HbA1c (%) |
N = 207 |
N = 205 |
N = 201 |
Baseline (mean) |
8.2 |
8.1 |
8.1 |
Change from baseline (LS mean†) |
-0.2 |
-0.7 |
-0.9 |
Difference from placebo (LS mean†, 95% CI) |
|
-0.5‡ (-0.7, -0.4) |
-0.7‡ (-0.9, -0.5) |
Patients [N (%)] with HbA1c <7% |
38 (18.4) |
74 (36.3) |
87 (43.3) |
FPG (mg/dL) |
N = 202 |
N = 199 |
N = 201 |
Baseline (mean) |
169.1 |
168.1 |
167.9 |
Change from baseline (LS mean†) |
-8.7 |
-30.3 |
-40.9 |
Difference from placebo (LS mean†, 95% CI) |
|
-21.6‡ (-27.8, -15.5) |
-32.3‡ (-38.5, -26.0) |
* N includes all randomized and treated patients with a baseline measurement of the outcome variable. At Week 26, the
primary HbA1c endpoint was missing for 12%, 6%, and 9% of patients, and during the trial, rescue medication was initiated by
18%, 3%, and 1% of patients randomized to placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively. Missing
Week 26 measurements were imputed using multiple imputation with a mean equal to the baseline value of the patient.
Results include measurements collected after initiation of rescue medication. For those patients who did not receive rescue
medication and had values measured at 26 weeks, the mean changes from baseline for HbA1c were -0.2%, -0.7%, and -1.0%
for placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively.
† Intent-to-treat analysis using ANCOVA adjusted for baseline value, prior antihyperglycemic medication, menopausal status
and baseline eGFR.
‡ p<0.001 compared to placebo. |
The mean baseline body weight was 84.5 kg, 84.9 kg, and 85.3 kg in the placebo, STEGLATRO
5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from baseline to Week 26
were -1.4 kg, -3.2 kg, and -3.0 kg in the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg groups,
respectively. The difference from placebo (95% CI) for STEGLATRO 5 mg was -1.8 kg (-2.4, -1.2) and for
STEGLATRO 15 mg was -1.7 kg (-2.2, -1.1).
The mean baseline systolic blood pressure was 129.3 mmHg, 130.5 mmHg, and 130.2 mmHg in
the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from
baseline to Week 26 were -1.8 mmHg, -5.1 mmHg, and -5.7 mmHg in the placebo, STEGLATRO 5 mg,
and STEGLATRO 15 mg groups, respectively. The difference from placebo (95% CI) for STEGLATRO
5 mg was -3.3 mmHg (-5.6, -1.1) and for STEGLATRO 15 mg was -3.8 mmHg (-6.1, -1.5).
Active Controlled Study Versus Glimepiride As Add-On Combination Therapy With Metformin
A total of 1,326 patients with type 2 diabetes mellitus inadequately controlled (HbA1c between 7%
and 9%) on metformin monotherapy participated in a randomized, double-blind, multi-center, 52-week,
active comparator controlled study (NCT01999218) to evaluate the efficacy and safety of STEGLATRO in
combination with metformin. These patients, who were receiving metformin monotherapy (≥1,500 mg/day
for ≥8 weeks), entered a 2-week, single-blind, placebo run-in period and were randomized to glimepiride,
STEGLATRO 5 mg, or STEGLATRO 15 mg administered once daily in addition to continuation of
background metformin therapy. Glimepiride was initiated at 1 mg/day and titrated up to a maximum dose
of 6 or 8 mg/day (depending on maximum approved dose in each country) or a maximum tolerated dose
or down-titrated to avoid or manage hypoglycemia. The mean daily dose of glimepiride was 3.0 mg.
STEGLATRO 15 mg was non-inferior to glimepiride after 52 weeks of treatment. (See Table 6.)
Table 6: Results at Week 52 from an Active-Controlled Study Comparing STEGLATRO to
Glimepiride as Add-on Therapy in Patients with Type 2 Diabetes Mellitus Inadequately Controlled
on Metformin*
|
Glimepiride |
STEGLATRO 5 mg |
STEGLATRO 15 mg |
HbA1c (%) |
N = 437 |
N = 447 |
N = 440 |
Baseline (mean) |
7.8 |
7.8 |
7.8 |
Change from baseline (LS mean†) |
-0.6 |
-0.5 |
-0.5 |
Difference from glimepiride (LS mean†, 95% CI) |
|
0.2‡ (0.0, 0.3) |
0.1‡ (-0.0, 0.2) |
Patients [N (%)] with HbA1c <7% |
208 (47.7) |
177 (39.5) |
186 (42.2) |
* N includes all randomized and treated patients with a baseline measurement of the outcome variable. At Week 52, the
primary HbA1c endpoint was missing for 15%, 20%, and 16% of patients and during the trial, rescue medication was initiated
by 3%, 6%, and 4% of patients randomized to glimepiride, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively.
Missing Week 52 measurements were imputed using multiple imputation with a mean equal to the baseline value of the
patient. Results include measurements collected after initiation of rescue medication. For those patients who did not receive
rescue medication and had values measured at 52 weeks, the mean changes from baseline for HbA1c were -0.8%, -0.6%,
and -0.7% for glimepiride, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively.
† Intent-to-treat analysis using ANCOVA adjusted for baseline value, prior antihyperglycemic medication and baseline eGFR.
‡ Non-inferiority is declared when the upper bound of the two-sided 95% confidence interval (CI) for the mean difference is less
than 0.3%. |
The mean baseline body weight was 86.8 kg, 87.9 kg, and 85.6 kg in the glimepiride, STEGLATRO
5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from baseline to Week 52 were
0.6 kg, -2.6 kg, and -3.0 kg in the glimepiride, STEGLATRO 5 mg, and STEGLATRO 15 mg groups,
respectively. The difference from glimepiride (95% CI) for STEGLATRO 5 mg was -3.2 kg (-3.7, -2.7) and
for STEGLATRO 15 mg was -3.6 kg (-4.1, -3.1).
In Combination With Sitagliptin Versus STEGLATRO Alone And Sitagliptin Alone, As Add-On To Metformin
A total of 1,233 patients with type 2 diabetes mellitus with inadequate glycemic control (HbA1c
between 7.5% and 11%) on metformin monotherapy (≥1,500 mg/day for ≥8 weeks) participated in a
randomized, double-blind, 26-week, active controlled study (NCT02099110) to evaluate the efficacy and
safety of STEGLATRO 5 mg or 15 mg in combination with sitagliptin 100 mg compared to the individual
components. Patients were randomized to one of five treatment arms: STEGLATRO 5 mg, STEGLATRO
15 mg, sitagliptin 100 mg, STEGLATRO 5 mg + sitagliptin 100 mg, or STEGLATRO 15 mg + sitagliptin
100 mg.
At Week 26, STEGLATRO 5 mg or 15 mg + sitagliptin 100 mg provided statistically significantly
greater reductions in HbA1c compared to STEGLATRO (5 mg or 15 mg) alone or sitagliptin 100 mg
alone. The mean change from baseline in HbA1c was -1.4% for STEGLATRO 5 mg or 15 mg + sitagliptin
100 mg versus -1.0%, for STEGLATRO 5 mg, STEGLATRO 15 mg, or sitagliptin 100 mg, respectively.
More patients receiving STEGLATRO 5 mg or 15 mg + sitagliptin 100 mg achieved an HbA1c <7%
(53.3% and 50.9%, for STEGLATRO 5 mg or 15 mg, respectively, + sitagliptin 100 mg) compared to the
individual components (29.3%, 33.7%, and 38.5% for STEGLATRO 5 mg, STEGLATRO 15 mg, or
sitagliptin 100 mg, respectively).
Add-On Combination Therapy With Metformin And Sitagliptin
A total of 463 patients with type 2 diabetes mellitus inadequately controlled (HbA1c between 7%
and 10.5%) on metformin (≥1,500 mg/day for ≥8 weeks) and sitagliptin 100 mg once daily participated in
a randomized, double-blind, multi-center, 26-week, placebo-controlled study (NCT02036515) to evaluate
the efficacy and safety of STEGLATRO. Patients entered a 2-week, single-blind, placebo run-in period
and were randomized to placebo, STEGLATRO 5 mg, or STEGLATRO 15 mg.
At Week 26, treatment with STEGLATRO at 5 mg or 15 mg daily provided statistically significant
reductions in HbA1c. STEGLATRO also resulted in a higher proportion of patients achieving an HbA1c
<7% compared to placebo (see Table 7).
Table 7: Results at Week 26 from an Add-on Study of STEGLATRO in Combination with Metformin
and Sitagliptin in Patients with Type 2 Diabetes Mellitus*
|
Placebo |
STEGLATRO 5 mg |
STEGLATRO 15 mg |
HbA1c (%) |
N = 152 |
N = 155 |
N = 152 |
Baseline (mean) |
8.0 |
8.1 |
8.0 |
Change from baseline (LS mean†) |
-0.2 |
-0.7 |
-0.8 |
Difference from placebo (LS mean†, 95% CI) |
|
-0.5‡ (-0.7, -0.3) |
-0.6‡ (-0.8, -0.4) |
Patients [N (%)] with HbA1c <7% |
31 (20.2) |
54 (34.6) |
64 (42.3) |
FPG (mg/dL) |
N = 152 |
N = 156 |
N = 152 |
Baseline (mean) |
169.6 |
167.7 |
171.7 |
Change from baseline (LS mean†) |
-6.5 |
-25.7 |
-32.1 |
Difference from placebo (LS mean†, 95% CI) |
|
-19.2‡ (-26.8, -11.6) |
-25.6‡ (-33.2, -18.0) |
* N includes all randomized and treated patients with a baseline measurement of the outcome variable. At Week 26, the
primary HbA1c endpoint was missing for 10%, 11%, and 7% of patients and during the trial, rescue medication was initiated
by 16%, 1%, and 2% of patients randomized to placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively. Missing
Week 26 measurements were imputed using multiple imputation with a mean equal to the baseline value of the patient.
Results include measurements collected after initiation of rescue medication. For those patients who did not receive rescue
medication and had values measured at 26 weeks, the mean changes from baseline for HbA1c were -0.2%, -0.8%, and -0.9%
for placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively.
† Intent-to-treat analysis using ANCOVA adjusted for baseline value, prior antihyperglycemic medication and baseline eGFR.
‡ p<0.001 compared to placebo. |
The mean baseline body weight was 86.5 kg, 87.6 kg, and 86.6 kg in the placebo, STEGLATRO
5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from baseline to Week 26
were -1.0 kg, -3.0 kg, and -2.8 kg in the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg groups,
respectively. The difference from placebo (95% CI) for STEGLATRO 5 mg was -1.9 kg (-2.6, -1.3) and for
STEGLATRO 15 mg was -1.8 kg (-2.4, -1.2).
The mean baseline systolic blood pressure was 130.2 mmHg, 132.1 mmHg, and 131.6 mmHg in
the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg groups, respectively. The mean changes from
baseline to Week 26 were -0.2 mmHg, -3.8 mmHg, and -4.5 mmHg in the placebo, STEGLATRO 5 mg,
and STEGLATRO 15 mg groups, respectively. The difference from placebo (95% CI) for STEGLATRO
5 mg was -3.7 mmHg (-6.1, -1.2) and for STEGLATRO 15 mg was -4.3 mmHg (-6.7, -1.9).
Initial Combination Therapy With Sitagliptin
A total of 291 patients with type 2 diabetes mellitus inadequately controlled (HbA1c between 8%
and 10.5%) on diet and exercise participated in a randomized, double-blind, multi-center, placebocontrolled
26-week study (NCT02226003) to evaluate the efficacy and safety of STEGLATRO in
combination with sitagliptin. These patients, who were not receiving any background antihyperglycemic
treatment for ≥8 weeks, entered a 2-week, single-blind, placebo run-in period and were randomized to
placebo, STEGLATRO 5 mg or STEGLATRO 15 mg in combination with sitagliptin (100 mg) once daily.
At Week 26, treatment with STEGLATRO 5 mg and 15 mg in combination with sitagliptin at 100 mg
daily provided statistically significant reductions in HbA1c compared to placebo. STEGLATRO 5 mg and
15 mg in combination with sitagliptin at 100 mg daily also resulted in a higher proportion of patients
achieving an HbA1c <7% and greater reductions in FPG compared with placebo.
Clinical Study Of STEGLATRO In Patients With Moderate Renal Impairment And Type 2
Diabetes Mellitus
The efficacy of STEGLATRO was assessed in a multicenter, randomized, double-blind, placebocontrolled
study (NCT01986855) of patients with type 2 diabetes mellitus and moderate renal impairment
(468 patients with eGFR ≥30 to <60 mL/min/1.73 m2). In this study, 202 patients exposed to STEGLATRO
(5 mg or 15 mg) had an eGFR between 45 and 60 mL/min/1.73 m2 and 111 patients exposed to
STEGLATRO (5 mg or 15 mg) had an eGFR between 30 and 45 mL/min/1.73 m2. The mean duration of
diabetes for the study population was approximately 14 years, and the majority of patients were receiving
background insulin (55.9%) and/or sulfonylurea (40.3%) therapy. Approximately 50% had a history of
cardiovascular disease or heart failure.
STEGLATRO did not show efficacy in this study. The HbA1c reductions from baseline to Week 26
were not significantly different between placebo and STEGLATRO 5 mg or 15 mg [see Use In Specific Populations].