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CompletedNCT02577003Updated Sep 4, 2018Results posted

Double-blind Ipragliflozin Add-on Study in Japanese Participants With Type 2 Diabetes Mellitus Who Have Inadequate Glycemic Control on Sitagliptin (MK-0431J-843)

A Phase 3 interventional study of Ipragliflozin and Placebo in Type 2 Diabetes Mellitus, sponsored by Merck Sharp & Dohme LLC. Completed. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2018-09-04.

Sponsored by Merck Sharp & Dohme LLC · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
143
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

This is a study to assess the safety and efficacy of the addition of ipragliflozin once daily in Japanese participants with Type 2 diabetes mellitus (T2DM) who have inadequate glycemic control on sitagliptin, diet, and exercise therapy. The primary hypothesis for this study is that the addition of ipragliflozin compared with placebo provides greater reduction in hemoglobin A1C (HbA1c) as assessed by change from baseline at Week 24.

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Conditions studied

  • Type 2 Diabetes Mellitus
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In context

Diabetes Mellitus

10,925 studies on the registry are indexed under Diabetes Mellitus; 1,319 are open to participants now.

This study's enrollment of 143 is above the median of 80 across 8,367 interventional studies indexed under Diabetes Mellitus.

Browse Diabetes Mellitus studies →

Lead sponsor

Merck Sharp & Dohme LLC is the lead sponsor of 2,114 studies on the registry; 133 are open to participants now.

Of its 489 completed or terminated interventional studies of FDA-regulated products, 362 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Type 2 diabetes mellitus
  • Inadequate glycemic control on diet/exercise therapy and sitagliptin monotherapy
  • HbA1c ≥7.0% and ≤10.0% before study start

Exclusion criteria

Exclusion Criteria:

  • History of Type 1 diabetes mellitus or a history of ketoacidosis
  • History of any of the following medications: thiazolidinediones (TZD) and/or insulin within 12 weeks prior to study participation and sodium glucose cotransporter 2 (SGLT2) inhibitors anytime
  • Currently has a urinary tract infection or genital infection with subjective symptom
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
143 participants (actual)

Study arms

  • Experimental
    Ipragliflozin + Sitagliptin

    Ipragliflozin once daily for 24 weeks in addition to sitagliptin, diet, and exercise.

    Drug: Ipragliflozin · Drug: Sitagliptin

  • Active comparator
    Placebo + Sitagliptin

    Placebo to ipragliflozin once daily for 24 weeks in addition to sitagliptin, diet, and exercise.

    Drug: Placebo · Drug: Sitagliptin

Interventions

  • DrugIpragliflozin

    50 mg tablet administered orally

  • DrugPlacebo

    Placebo to ipragliflozin tablet administered orally

  • DrugSitagliptin

    Background medication; 50 mg tablet administered orally

    Also known as: Januvia®, Tesavel®, Xelevia®, Ristaben®, Glactiv®

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What researchers measure

Primary outcomes

  1. Change From Baseline in HbA1c at Week 24

    HbA1c is measured as percent. Thus, this change from baseline reflects the Week 24 HbA1c percent minus the Week 0 HbA1c percent. Statistical analysis based on a constrained longitudinal data analysis (cLDA) model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline HbA1c is the same for both treatment groups.

    Time frame: Baseline and Week 24

  2. Percentage of Participants Who Experienced at Least One Adverse Event (AE)

    An adverse event is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

    Time frame: Up to 26 weeks

  3. Percentage of Participants Who Discontinued Study Drug Due to an AE

    An adverse event is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

    Time frame: Up to 24 weeks

Secondary outcomes

  1. Change From Baseline in FPG at Week 24

    Change from baseline in FPG at Week 24 is defined as Week 24 FPG minus Week 0 FPG. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline FPG is the same for both treatment groups.

    Time frame: Baseline and Week 24

  2. Change From Baseline in 2-hr PMG at Week 24

    Change from baseline in 2-hr PMG at Week 24 is defined as Week 24 2-hr PMG minus Week 0 2-hr PMG. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline 2-hr PMG is the same for both treatment groups.

    Time frame: Baseline and Week 24

  3. Change From Baseline in Glucose Total AUC0-2hr After Meal at Week 24

    Change from baseline in glucose total AUC0-2hr after meal at Week 24 is defined as Week 24 glucose total AUC0-2hr after a meal minus Week 0 glucose total AUC0-2hr after a meal. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs and treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline glucose total AUC0-2hr after meal is the same for both treatment groups.

    Time frame: Baseline and Week 24 (just before the loading meal [0 min], 30 min, 60 min and 120 min)

  4. Change From Baseline in Body Weight at Week 24

    Change from baseline in body weight at Week 24 is defined as Week 24 body weight minus Week 0 body weight. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs and treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline body weight is the same for both treatment groups.

    Time frame: Baseline and Week 24

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Results

Posted Mar 7, 2018

Participant flow

Participant flow — Overall Study
MilestoneIpragliflozin + SitagliptinPlacebo + Sitagliptin
Started7370
Completed7165
Not completed25
Withdrew: Adverse event24
Withdrew: Withdrawal by subject01

Outcome measures

PrimaryChange From Baseline in HbA1c at Week 24

HbA1c is measured as percent. Thus, this change from baseline reflects the Week 24 HbA1c percent minus the Week 0 HbA1c percent. Statistical analysis based on a constrained longitudinal data analysis (cLDA) model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline HbA1c is the same for both treatment groups.

Time frame:
Baseline and Week 24
Reported as:
Least squares mean · Percent
Change From Baseline in HbA1c at Week 24
PercentIpragliflozin + SitagliptinPlacebo + Sitagliptin
Change From Baseline in HbA1c at Week 24-0.84 (-0.99 to -0.69)-0.07 (-0.22 to 0.09)
Statistical analysis
  • Ipragliflozin + Sitagliptin vs Placebo + Sitagliptin · Constrained longitudinal data analysis · p = <0.001 · Difference in least squares means: -0.77 · 95% CI -0.98 to -0.57Based on a cLDA model with the terms listed above.
PrimaryPercentage of Participants Who Experienced at Least One Adverse Event (AE)

An adverse event is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Time frame:
Up to 26 weeks
Reported as:
Number · Percentage of participants
Percentage of Participants Who Experienced at Least One Adverse Event (AE)
Percentage of participantsIpragliflozin + SitagliptinPlacebo + Sitagliptin
Percentage of Participants Who Experienced at Least One Adverse Event (AE)50.765.7
PrimaryPercentage of Participants Who Discontinued Study Drug Due to an AE

An adverse event is defined as any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment.

Time frame:
Up to 24 weeks
Reported as:
Number · Percentage of participants
Percentage of Participants Who Discontinued Study Drug Due to an AE
Percentage of participantsIpragliflozin + SitagliptinPlacebo + Sitagliptin
Percentage of Participants Who Discontinued Study Drug Due to an AE2.75.7
SecondaryChange From Baseline in FPG at Week 24

Change from baseline in FPG at Week 24 is defined as Week 24 FPG minus Week 0 FPG. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline FPG is the same for both treatment groups.

Time frame:
Baseline and Week 24
Reported as:
Least squares mean · mg/dL
Change From Baseline in FPG at Week 24
mg/dLIpragliflozin + SitagliptinPlacebo + Sitagliptin
Change From Baseline in FPG at Week 24-30.3 (-35.5 to -25.0)-2.1 (-7.6 to 3.3)
Statistical analysis
  • Ipragliflozin + Sitagliptin vs Placebo + Sitagliptin · Constrained longitudinal data analysis · p = <0.001 · Difference in least squares means: -28.1 · 95% CI -34.8 to -21.5Based on a cLDA model with the terms listed above.
SecondaryChange From Baseline in 2-hr PMG at Week 24

Change from baseline in 2-hr PMG at Week 24 is defined as Week 24 2-hr PMG minus Week 0 2-hr PMG. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs, treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline 2-hr PMG is the same for both treatment groups.

Time frame:
Baseline and Week 24
Reported as:
Least squares mean · mg/dL
Change From Baseline in 2-hr PMG at Week 24
mg/dLIpragliflozin + SitagliptinPlacebo + Sitagliptin
Change From Baseline in 2-hr PMG at Week 24-52.4 (-61.5 to -43.2)-3.8 (-13.3 to 5.7)
Statistical analysis
  • Ipragliflozin + Sitagliptin vs Placebo + Sitagliptin · Constrained longitudinal data analysis · p = <0.001 · Difference in least squares means: -48.5 · 95% CI -59.6 to -37.5Based on a cLDA model with the terms listed above.
SecondaryChange From Baseline in Glucose Total AUC0-2hr After Meal at Week 24

Change from baseline in glucose total AUC0-2hr after meal at Week 24 is defined as Week 24 glucose total AUC0-2hr after a meal minus Week 0 glucose total AUC0-2hr after a meal. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs and treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline glucose total AUC0-2hr after meal is the same for both treatment groups.

Time frame:
Baseline and Week 24 (just before the loading meal [0 min], 30 min, 60 min and 120 min)
Reported as:
Least squares mean · mg・hr/dL
Change From Baseline in Glucose Total AUC0-2hr After Meal at Week 24
mg・hr/dLIpragliflozin + SitagliptinPlacebo + Sitagliptin
Change From Baseline in Glucose Total AUC0-2hr After Meal at Week 24-86.9 (-101.0 to -72.9)-2.3 (-17.0 to 12.3)
Statistical analysis
  • Ipragliflozin + Sitagliptin vs Placebo + Sitagliptin · Constrained longitudinal data analysis · p = <0.001 · Difference in least squares means: -84.6 · 95% CI -102.6 to -66.6Based on a cLDA model with the terms listed above.
SecondaryChange From Baseline in Body Weight at Week 24

Change from baseline in body weight at Week 24 is defined as Week 24 body weight minus Week 0 body weight. Statistical analysis based on a cLDA model with terms for treatment, time, prior use of AHAs, the interactions of treatment by time, time by prior use of AHAs and treatment by time by prior use of AHAs, and baseline eGFR value with the constraint that the mean baseline body weight is the same for both treatment groups.

Time frame:
Baseline and Week 24
Reported as:
Least squares mean · kg
Change From Baseline in Body Weight at Week 24
kgIpragliflozin + SitagliptinPlacebo + Sitagliptin
Change From Baseline in Body Weight at Week 24-2.4 (-2.9 to -1.9)-0.6 (-1.1 to -0.1)
Statistical analysis
  • Ipragliflozin + Sitagliptin vs Placebo + Sitagliptin · Constrained longitudinal data analysis · p = <0.001 · Difference in least squares means: -1.8 · 95% CI -2.5 to -1.1Based on a cLDA model with the terms listed above.

Adverse events

Collected over Up to 26 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Ipragliflozin + Sitagliptin—2/73 (2.7%)12/73 (16.4%)
Placebo + Sitagliptin—4/70 (5.7%)15/70 (21.4%)
Most frequent serious events
Most frequent serious events
EventIpragliflozin + SitagliptinPlacebo + Sitagliptin
Angina pectorisCardiac disorders0/731/70
CardiomyopathyCardiac disorders0/731/70
UreterolithiasisRenal and urinary disorders0/731/70
Sleep apnoea syndromeRespiratory, thoracic and mediastinal disorders0/731/70
Cerebral infarctionNervous system disorders1/730/70
Pulmonary massRespiratory, thoracic and mediastinal disorders1/730/70
Most frequent other events
Most frequent other events
EventIpragliflozin + SitagliptinPlacebo + Sitagliptin
NasopharyngitisInfections and infestations10/7310/70
ConstipationGastrointestinal disorders2/734/70
ContusionInjury, poisoning and procedural complications0/734/70

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean61.0 ± 9.160.0 ± 10.460.5 ± 9.7
Sex: Female, Male
Sex: Female, Male(Participants)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Female191736
Male5453107
HbA1c
HbA1c(Percent)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean8.05 ± 0.837.99 ± 0.628.02 ± 0.73
Estimated Glomerular Filtration Rate (eGFR)
Estimated Glomerular Filtration Rate (eGFR)(mL/min/1.73m^2)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean82.0 ± 13.583.4 ± 16.782.7 ± 15.1
Fasting Plasma Glucose (FPG)
Fasting Plasma Glucose (FPG)(mg/dL)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean158.0 ± 33.2163.0 ± 26.2160.5 ± 30.0
2-hour Post-Meal Glucose (2-hr PMG)
2-hour Post-Meal Glucose (2-hr PMG)(mg/dL)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean225.3 ± 59.9231.5 ± 48.9228.3 ± 54.7
Glucose Total Area Under the Plasma Concentration Curve from Hour 0 to Hour 2 (AUC0-2hr) after Meal
Glucose Total Area Under the Plasma Concentration Curve from Hour 0 to Hour 2 (AUC0-2hr) after Meal(mg・hr/dL)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean429.4 ± 86.3443.4 ± 67.0436.2 ± 77.5
Body Weight
Body Weight(kg)Ipragliflozin + SitagliptinPlacebo + SitagliptinTotal
Mean69.8 ± 11.770.1 ± 11.169.9 ± 11.4

1 further baseline measures are reported on the registry.

08

Study locations

No study locations are listed for this record.

09

References and documents

Publications

  • Kaku K, Kadowaki T, Seino Y, Okamoto T, Shirakawa M, Sato A, O'Neill EA, Engel SS, Kaufman KD. Efficacy and safety of ipragliflozin in Japanese patients with type 2 diabetes and inadequate glycaemic control on sitagliptin. Diabetes Obes Metab. 2021 Sep;23(9):2099-2108. doi: 10.1111/dom.14448. Epub 2021 Jun 15. PubMed 34033212 ↗

Individual participant data

Plan to share: Yes — https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 4, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02577003
Lead sponsor
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Oct 15, 2015
Start date
Nov 9, 2015
Primary completion
Nov 25, 2016
Completion
Nov 25, 2016
Results posted
Mar 7, 2018
Last update
Sep 4, 2018

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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