inTandem3: A Phase 3 Study to Evaluate the Safety of Sotagliflozin in Patients With Type 1 Diabetes Who Have Inadequate Glycemic Control With Insulin Therapy Alone

Sponsor
Lexicon Pharmaceuticals (Industry)
Overall Status
Completed
CT.gov ID
NCT02531035
Collaborator
Sanofi (Industry)
1,405
135
2
19
10.4
0.5

Study Details

Study Description

Brief Summary

This Phase 3 study was designed to demonstrate the net benefit of sotagliflozin versus placebo in patients with Type 1 Diabetes (T1D).

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
1405 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Study to Evaluate the Net Clinical Benefit of Sotagliflozin as Adjunct to Insulin Therapy in Type 1 Diabetes
Actual Study Start Date :
Sep 1, 2015
Actual Primary Completion Date :
Apr 1, 2017
Actual Study Completion Date :
Apr 1, 2017

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Placebo

Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks.

Drug: Placebo
Placebo, once daily, before the first meal of the day

Experimental: Sotagliflozin 400 mg

Sotagliflozin 400 milligram (mg) (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.

Drug: Sotagliflozin
Sotagliflozin, once daily, before the first meal of the day
Other Names:
  • LX4211
  • Outcome Measures

    Primary Outcome Measures

    1. Percentage of Participants With A1C <7.0% at Week 24 and No Episode of Severe Hypoglycemia and No Episode of Diabetic Ketoacidosis (DKA) After Randomization [Week 24]

      The primary composite endpoint included blood samples for the assessment of Hemoglobin A1C to determine the participants with a value <7.0%. A central blinded adjudication process determined whether participants experienced either DKA or Severe Hypoglycemia.

    Secondary Outcome Measures

    1. Change From Baseline in A1C [Baseline to Week 24]

      Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. Least Squares (LS) means were obtained from a mixed-effects model for repeated measures (MMRM) model including all available post baseline data. A negative change from Baseline (a lower AIC value at Week 24) indicates an improvement.

    2. Absolute Change From Baseline in Body Weight [Baseline to Week 24]

      Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. LS means were obtained from MMRM model. A negative change from Baseline indicates a loss in body weight from Baseline to Week 24.

    3. Change From Baseline in Systolic Blood Pressure (SBP) in the Subset of Participants With Baseline SBP >=130 Millimeter of Mercury (mmHg) [Baseline to Week 16]

      An automatic sphygmomanometer was used with instructions on blood pressure measurements to allow for standardization. Week 16 was used because the protocol required Investigators to keep participant's hypertensive medications stable between Baseline and Week 16, unless a change was required for safety reasons. Baseline was defined as the last value collected prior to the first does of double-blind study medication. LS means were obtained from MMRM model including all available post baseline values. A negative change indicates a decrease in SBP between Baseline and Week 16.

    4. Percent Change From Baseline in Mean Daily Bolus Insulin Dose [Baseline to Week 24]

      The mean bolus insulin dose in international units/day (IU/day) for Week 24 was the average over the 3 to 5 days prior to the Week 24 visit. The Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. LS means were obtained from MMRM model including all available post Baseline values. A negative percent change from Baseline indicated a reduction in the amount of bolus insulin used and a positive percent change from Baseline indicated an increase in the amount of bolus insulin used between Baseline and Week 24.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Participants had given written informed consent to participate in the study in accordance with local regulations

    • Adult participants 18 years and older with a diagnosis of T1DM made at least 1 year prior to informed consent

    • Participants were being treated with insulin or insulin analog

    • Willing and able to perform self-monitoring of blood glucose (SMBG) and complete the study diary as required per protocol

    • At the Screening Visit, A1C was between 7.0% to 11.0%

    • Females of childbearing potential used an adequate method of contraception and had a negative pregnancy test

    Exclusion Criteria:
    • Use of antidiabetic agent other than insulin or insulin analog at the time of screening

    • Use of sodium-glucose cotransporter (SGLT) inhibitors within 8 weeks prior to screening

    • Chronic systemic corticosteroid use

    • Type 2 diabetes mellitus (T2DM), or severely uncontrolled T1D as determined by the Investigator

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Lexicon Investigational Site Concord California United States 94520
    2 Lexicon Investigational Site Escondido California United States 92025
    3 Lexicon Investigational Site La Jolla California United States 92037
    4 Lexicon Investigational Site San Marcos California United States 94401
    5 Lexicon Investigational Site Ventura California United States 93003
    6 Lexicon Investigational Site Walnut Creek California United States 94598
    7 Lexicon Investigational Site Aurora Colorado United States 80045
    8 Lexicon Investigational Site New Haven Connecticut United States 06511
    9 Lexicon Investigational Site Orlando Florida United States 32804
    10 Lexicon Investigational Site West Palm Beach Florida United States 33401
    11 Lexicon Investigational Site Atlanta Georgia United States 30318
    12 Lexicon Investigational Site Macon Georgia United States 31210
    13 Lexicon Investigational Site Roswell Georgia United States 30076
    14 Lexicon Investigational Site New Orleans Louisiana United States 70112
    15 Lexicon Investigational Site Rockville Maryland United States 20852
    16 Lexicon Investigational Site Boston Massachusetts United States 02215
    17 Lexicon Investigational Site Bloomfield Hills Michigan United States 48302
    18 Lexicon Investigational Site Omaha Nebraska United States 68114
    19 Lexicon Investigational Site Las Vegas Nevada United States 89148
    20 Lexicon Investigational Site Albany New York United States 12206
    21 Lexicon Investigational Site Bronx New York United States 10467
    22 Lexicon Investigational Site Asheville North Carolina United States 28803
    23 Lexicon Investigational Site Chapel Hill North Carolina United States 27517
    24 Lexicon Investigational Site Greenville North Carolina United States 27834
    25 Lexicon Investigational Site Morehead City North Carolina United States 28557
    26 Lexicon Investigational Site Grand Forks North Dakota United States 58201
    27 Lexicon Investigational Site Bend Oregon United States 97701
    28 Lexicon Investigational Site Sioux Falls South Dakota United States 57104
    29 Lexicon Investigational Site Austin Texas United States 78731
    30 Lexicon Investigational Site San Antonio Texas United States 78229
    31 Lexicon Investigational Site Shavano Park Texas United States 78231
    32 Lexicon Investigational Site Salt Lake City Utah United States 84107
    33 Lexicon Investigational Site Seattle Washington United States 98105
    34 Lexicon Investigational Site Córdoba Cordoba Argentina X5006IKK
    35 Lexicon Investigational Site Buenos Aires Argentina B7600FZN
    36 Lexicon Investigational Site Buenos Aires Argentina C1180AAX
    37 Lexicon Investigational Site Coffs Harbour New South Wales Australia 2450
    38 Lexicon Investigational Site Merewether New South Wales Australia 2291
    39 Lexicon Investigational Site St Leonards New South Wales Australia 2065
    40 Lexicon Investigational Site Wollongong New South Wales Australia 2500
    41 Lexicon Investigational Site Herston Queensland Australia 4029
    42 Lexicon Investigational Site Keswick South Australia Australia 5035
    43 Lexicon Investigational Site Box Hill Victoria Australia 3128
    44 Lexicon Investigational Site Fitzroy Victoria Australia 3065
    45 Lexicon Investigational Site Parkville Victoria Australia 3050
    46 Lexicon Investigational Site Aalst Belgium 9300
    47 Lexicon Investigational Site Gent Belgium 9000
    48 Lexicon Investigational Site Sint-Niklaas Belgium 9100
    49 Lexicon Investigational Site Plovdiv Bulgaria 4002
    50 Lexicon Investigational Site Ruse Bulgaria 7003
    51 Lexicon Investigational Site Smolyan Bulgaria 4700
    52 Lexicon Investigational Site Sofia Bulgaria 1431
    53 Lexicon Investigational Site Sofia Bulgaria 1750
    54 Lexicon Investigational Site Varna Bulgaria 9000
    55 Lexicon Investigational Site Vancouver British Columbia Canada V5Y 3W2
    56 Lexicon Investigational Site Halifax Nova Scotia Canada B3H 2Y9
    57 Lexicon Investigational Site Barrie Ontario Canada L4M 7G1
    58 Lexicon Investigational Site London Ontario Canada N6A 4V2
    59 Lexicon Investigational Site Markham Ontario Canada L6B 0P9
    60 Lexicon Investigational Site Oakville Ontario Canada L6M 1M1
    61 Lexicon Investigational Site Thornhill Ontario Canada L4J 8L7
    62 Lexicon Investigational Site Toronto Ontario Canada M4G 3E8
    63 Lexicon Investigational Site Sherbrooke Quebec Canada J1G 5K2
    64 Lexicon Investigational Site St. Laurent Quebec Canada H4T 1Z9
    65 Lexicon Investigational Site Atlantico Colombia 080020
    66 Lexicon Investigational Site Cundinamarca Colombia 110221
    67 Lexicon Investigational Site Cundinamarca Colombia 111211
    68 Lexicon Investigational Site Cundinamarca Colombia 111311
    69 Lexicon Investigational Site Krnov Czechia 794 01
    70 Lexicon Investigational Site Olomouc Czechia 779 00
    71 Lexicon Investigational Site Ostrava Czechia 702 00
    72 Lexicon Investigational Site Praha 10 Czechia 104 00
    73 Lexicon Investigational Site Praha 4 Czechia 149 00
    74 Lexicon Investigational Site Praha 5 Czechia 150 98
    75 Lexicon Investigational Site Corbeil-Essonnes France 91106
    76 Lexicon Investigational Site Pierre-Bénite France 69495
    77 Lexicon Investigational Site Mainz Palatinate Germany 55116
    78 Lexicon Investigational Site Sulzbach Rosenberg Bavaria Germany 92237
    79 Lexicon Investigational Site Münster Westphalia Germany 48153
    80 Lexicon Investigational Site Aschaffenburg Germany 63739
    81 Lexicon Investigational Site Asslar Germany 35614
    82 Lexicon Investigational Site Budapest Hungary 1027
    83 Lexicon Investigational Site Budapest Hungary 1033
    84 Lexicon Investigational Site Budapest Hungary 1088
    85 Lexicon Investigational Site Budapest Hungary 1213
    86 Lexicon Investigational Site Eger Hungary 3300
    87 Lexicon Investigational Site Esztergom Hungary 2500
    88 Lexicon Investigational Site Gyor Hungary 9023
    89 Lexicon Investigational Site Sátoraljaújhely Hungary 3980
    90 Lexicon Investigational Site Holon Israel 58100
    91 Lexicon Investigational Site Petach-Tikvah Israel 4920235
    92 Lexicon Investigational Site Petah Tikva Israel 4941492
    93 Lexicon Investigational Site Rehovot Israel 76100
    94 Lexicon Investigational Site Tel Hashomer Israel 56261
    95 Lexicon Investigational Site Bologna Italy 40138
    96 Lexicon Investigational Site Catania Italy 95122
    97 Lexicon Investigational Site Catania Italy 95123
    98 Lexicon Investigational Site Latina Italy 04100
    99 Lexicon Investigational Site Milan Italy 20132
    100 Lexicon Investigational Site Rome Italy 00128
    101 Lexicon Investigational Site Epsom Auckland New Zealand 1051
    102 Lexicon Investigational Site Takapuna Auckland New Zealand 0620
    103 Lexicon Investigational Site Christchurch Canterbury New Zealand 8001
    104 Lexicon Investigational Site Dunedin Otago New Zealand 9016
    105 Lexicon Investigational Site Newtown Wellington New Zealand 6021
    106 Lexicon Investigational Site Christchurch New Zealand 8011
    107 Lexicon Investigational Site Otahuhu New Zealand 1640
    108 Lexicon Investigational Site Gdynia Poland 81-338
    109 Lexicon Investigational Site Katowice Poland 40-060
    110 Lexicon Investigational Site Katowice Poland 40-954
    111 Lexicon Investigational Site Lublin Poland 20-538
    112 Lexicon Investigational Site Warsaw Poland 01-868
    113 Lexicon Investigational Site Warsaw Poland 04-736
    114 Lexicon Investigational Site Warszawa Poland 02-507
    115 Lexicon Investigational Site Bardejov Slovakia 085 01
    116 Lexicon Investigational Site Bratislava Slovakia 851 01
    117 Lexicon Investigational Site Bratislava Slovakia 85101
    118 Lexicon Investigational Site Levice Slovakia 934 01
    119 Lexicon Investigational Site Goodwood Cape Town South Africa 7460
    120 Lexicon Investigational Site Middelburg Mpumalanga South Africa 1055
    121 Lexicon Investigational Site Bloemfontein South Africa 9300
    122 Lexicon Investigational Site Cape Town South Africa 7130
    123 Lexicon Investigational Site Cape Town South Africa 7580
    124 Lexicon Investigational Site Johannesburg South Africa 2198
    125 Lexicon Investigational Site Port Elizabeth South Africa 6045
    126 Lexicon Investigational Site Barcelona Spain 08035
    127 Lexicon Investigational Site Barcelona Spain 08036
    128 Lexicon Investigational Site Malaga Spain 29006
    129 Lexicon Investigational Site Sevilla Spain 41009
    130 Lexicon Investigational Site Sevilla Spain 41071
    131 Lexicon Investigational Site Dundee Scotland United Kingdom DD1 9SY
    132 Lexicon Investigational Site Blackburn United Kingdom BB2 3HH
    133 Lexicon Investigational Site Guildford United Kingdom GU2 7XX
    134 Lexicon Investigational Site Leicester United Kingdom LE5 4PW
    135 Lexicon Investigational Site Northampton United Kingdom NN1 5BD

    Sponsors and Collaborators

    • Lexicon Pharmaceuticals
    • Sanofi

    Investigators

    • Study Director: Sangeeta Sawhney, MD, Lexicon Pharmaceuticals, Inc.

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Lexicon Pharmaceuticals
    ClinicalTrials.gov Identifier:
    NCT02531035
    Other Study ID Numbers:
    • LX4211.1-312-T1DM
    • LX4211.312
    First Posted:
    Aug 21, 2015
    Last Update Posted:
    Feb 12, 2020
    Last Verified:
    Feb 1, 2020

    Study Results

    Participant Flow

    Recruitment Details Participants took part in the study at 133 investigative sites across 19 countries: Poland, Slovakia, Spain, United Kingdom, Belgium, Bulgaria, Czech Republic, France, Germany, Hungary, Italy, Argentina, Australia, Canada, Colombia, Israel, New Zealand, South Africa and United States from 18 September 2015 to 18 April 2017.
    Pre-assignment Detail 1405 participants with a diagnosis of Type 1 Diabetes were enrolled equally in 1 of 2 treatment groups: placebo or sotagliflozin 400 milligrams (mg).
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Period Title: Overall Study
    STARTED 705 700
    Treated 703 699
    COMPLETED 624 605
    NOT COMPLETED 81 95

    Baseline Characteristics

    Arm/Group Title Placebo Sotagliflozin 400 mg Total
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks. Total of all reporting groups
    Overall Participants 703 699 1402
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    42.4
    (14.04)
    43.3
    (14.17)
    42.8
    (14.11)
    Sex: Female, Male (Count of Participants)
    Female
    364
    51.8%
    341
    48.8%
    705
    50.3%
    Male
    339
    48.2%
    358
    51.2%
    697
    49.7%
    Race/Ethnicity, Customized (Count of Participants)
    American Indian or Alaska Native
    5
    0.7%
    1
    0.1%
    6
    0.4%
    Asian
    5
    0.7%
    7
    1%
    12
    0.9%
    Black or African American
    22
    3.1%
    24
    3.4%
    46
    3.3%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    1
    0.1%
    1
    0.1%
    White
    621
    88.3%
    619
    88.6%
    1240
    88.4%
    Other
    37
    5.3%
    31
    4.4%
    68
    4.9%
    Not Applicable
    13
    1.8%
    16
    2.3%
    29
    2.1%
    hemoglobin A1C (A1C) (percentage of A1C) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [percentage of A1C]
    8.21
    (0.921)
    8.26
    (0.965)
    8.23
    (0.943)
    Body Weight (kilograms (kg)) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [kilograms (kg)]
    81.55
    (17.032)
    82.40
    (17.131)
    81.97
    (17.081)
    Duration of Diabetes (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    19.6
    (12.07)
    20.5
    (12.37)
    20.0
    (12.22)
    Baseline Total Daily Insulin (International units per kilogram (IU/kg)) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [International units per kilogram (IU/kg)]
    0.71
    (0.291)
    0.69
    (0.276)
    0.70
    (0.284)
    Body Mass Index (BMI) (kg/m^2 (kilogram(s)/square meter)) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [kg/m^2 (kilogram(s)/square meter)]
    28.10
    (5.183)
    28.29
    (5.128)
    28.19
    (5.155)

    Outcome Measures

    1. Primary Outcome
    Title Percentage of Participants With A1C <7.0% at Week 24 and No Episode of Severe Hypoglycemia and No Episode of Diabetic Ketoacidosis (DKA) After Randomization
    Description The primary composite endpoint included blood samples for the assessment of Hemoglobin A1C to determine the participants with a value <7.0%. A central blinded adjudication process determined whether participants experienced either DKA or Severe Hypoglycemia.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The primary efficacy analyses were based on the modified Intent-to-Treat (mITT) population.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Measure Participants 703 699
    Number [percentage of participants]
    15.2
    2.2%
    28.6
    4.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Sotagliflozin 400 mg
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value < 0.001
    Comments P-values from Cochran-Mantel-Haenszel test stratified by different levels of stratification factors of BMI at Screening(<25 kg/m^2,>=25 kg/m^2),Week -2 A1C(<=9.0%, >9.0%),and using continuous subcutaneous insulin infusion(CSII) at Screening(yes,no).
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Percentage difference
    Estimated Value 13.4
    Confidence Interval (2-Sided) 95%
    8.97 to 17.81
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Secondary Outcome
    Title Change From Baseline in A1C
    Description Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. Least Squares (LS) means were obtained from a mixed-effects model for repeated measures (MMRM) model including all available post baseline data. A negative change from Baseline (a lower AIC value at Week 24) indicates an improvement.
    Time Frame Baseline to Week 24

    Outcome Measure Data

    Analysis Population Description
    Analyses included participants from the mITT population. Here, "overall number of participants analyzed" signifies participants who were evaluable for this outcome measure.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Measure Participants 628 627
    Least Squares Mean (Standard Error) [percentage of A1c]
    -0.33
    (0.031)
    -0.79
    (0.032)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Sotagliflozin 400 mg
    Comments Testing according to hierarchical procedure. Post-Baseline LS means and p-values were obtained from MMRM model with treatment, randomization stratum of BMI at Screening (<25 kg/m^2, >=25 kg/m^2), randomization stratum of Week -2 A1C (<=9.0%, >9.0%), randomization stratum of use of CSII at Screening (yes, no), time (study week), and a treatment-by-time interaction as fixed categorical effects, and Baseline A1C-by-time interaction as a covariate.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value < 0.001
    Comments
    Method MMRM
    Comments
    Method of Estimation Estimation Parameter Least Squares Mean Difference
    Estimated Value -0.46
    Confidence Interval (2-Sided) 95%
    -0.54 to -0.38
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Secondary Outcome
    Title Absolute Change From Baseline in Body Weight
    Description Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. LS means were obtained from MMRM model. A negative change from Baseline indicates a loss in body weight from Baseline to Week 24.
    Time Frame Baseline to Week 24

    Outcome Measure Data

    Analysis Population Description
    Analyses included participants from the mITT population. Here, "overall number of participants analyzed" signifies participants who were evaluable for this outcome measure.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Measure Participants 633 630
    Least Squares Mean (Standard Error) [kilograms (kg)]
    0.77
    (0.122)
    -2.21
    (0.122)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Sotagliflozin 400 mg
    Comments Testing according to hierarchical procedure. Post-Baseline LS means and p-values were obtained from MMRM model with treatment, randomization stratum of BMI at Screening (<25 kg/m^2, >=25 kg/m^2), randomization stratum of Week -2 A1C (<=9%, >9%), randomization stratum of Use of CSII at Screening (Yes, No), time (study week), and a treatment-by-time interaction as fixed categorical effects, and Baseline weight-by-time interaction as a covariate.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value < 0.001
    Comments
    Method MMRM
    Comments
    Method of Estimation Estimation Parameter Least squares mean difference
    Estimated Value -2.98
    Confidence Interval (2-Sided) 95%
    -3.31 to -2.66
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Change From Baseline in Systolic Blood Pressure (SBP) in the Subset of Participants With Baseline SBP >=130 Millimeter of Mercury (mmHg)
    Description An automatic sphygmomanometer was used with instructions on blood pressure measurements to allow for standardization. Week 16 was used because the protocol required Investigators to keep participant's hypertensive medications stable between Baseline and Week 16, unless a change was required for safety reasons. Baseline was defined as the last value collected prior to the first does of double-blind study medication. LS means were obtained from MMRM model including all available post baseline values. A negative change indicates a decrease in SBP between Baseline and Week 16.
    Time Frame Baseline to Week 16

    Outcome Measure Data

    Analysis Population Description
    Participants from mITT population and who had a Baseline SBP >= 130 mm Hg. Here, "overall number of participants analyzed" signifies participants who were evaluable for this outcome measure.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Measure Participants 192 186
    Least Squares Mean (Standard Error) [mmHg]
    -5.7
    (0.90)
    -9.2
    (0.92)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Sotagliflozin 400 mg
    Comments Testing according to the hierarchical procedure. Post-Baseline LS means and p-values were obtained from MMRM model with treatment, randomization stratum of BMI at Screening (<25 kg/m2, >=25 kg/m2), randomization stratum of Week -2 A1C (<=9.0%, >9.0%), randomization stratum of use of CSII at Screening (yes, no), time (study week), and a treatment-by- time interaction as fixed categorical effects, and Baseline SBP-by-time interaction as a covariate.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value = 0.002
    Comments
    Method MMRM
    Comments
    Method of Estimation Estimation Parameter Least Squares Mean Difference
    Estimated Value -3.5
    Confidence Interval (2-Sided) 95%
    -5.7 to -1.3
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Percent Change From Baseline in Mean Daily Bolus Insulin Dose
    Description The mean bolus insulin dose in international units/day (IU/day) for Week 24 was the average over the 3 to 5 days prior to the Week 24 visit. The Baseline value was defined as the last value collected prior to the first dose of double-blind study medication. LS means were obtained from MMRM model including all available post Baseline values. A negative percent change from Baseline indicated a reduction in the amount of bolus insulin used and a positive percent change from Baseline indicated an increase in the amount of bolus insulin used between Baseline and Week 24.
    Time Frame Baseline to Week 24

    Outcome Measure Data

    Analysis Population Description
    Analyses included participants from the mITT population. Here, "overall number of participants analyzed" signifies participants who were evaluable for this outcome measure.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    Measure Participants 623 617
    Least Squares Mean (Standard Error) [percent change in IU/day]
    6.62
    (2.272)
    -5.71
    (2.289)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Sotagliflozin 400 mg
    Comments Testing according to hierarchical procedure. Post-Baseline LS means and p-values were obtained from MMRM model with treatment, randomization stratum of BMI at Screening (<25 kg/m2, >=25 kg/m2), randomization stratum of Week -2 A1C (<=9.0%, >9.0%), randomization stratum of use of CSII at Screening (yes, no), time (study week), a treatment-by-time interaction as fixed categorical effects, and Baseline mean daily bolus insulin dose-by-time interaction as a covariate.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value < 0.001
    Comments
    Method MMRM
    Comments
    Method of Estimation Estimation Parameter Least squares mean difference
    Estimated Value -12.32
    Confidence Interval (2-Sided) 95%
    -18.17 to -6.48
    Parameter Dispersion Type:
    Value:
    Estimation Comments

    Adverse Events

    Time Frame Baseline (Day 1) to 30 days after end of treatment (Up to 28 Weeks)
    Adverse Event Reporting Description Analysis performed on safety population which includes participants who received at least 1 dose of study drug.
    Arm/Group Title Placebo Sotagliflozin 400 mg
    Arm/Group Description Two placebo-matching to sotagliflozin tablets daily, orally, before the first meal of the day for 24 weeks. Sotagliflozin 400 mg (two 200 mg tablets) once daily, orally, before the first meal of the day for 24 weeks.
    All Cause Mortality
    Placebo Sotagliflozin 400 mg
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/703 (0%) 1/699 (0.1%)
    Serious Adverse Events
    Placebo Sotagliflozin 400 mg
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 23/703 (3.3%) 48/699 (6.9%)
    Cardiac disorders
    Coronary artery disease 0/703 (0%) 0 2/699 (0.3%) 2
    Acute myocardial infarction 0/703 (0%) 0 1/699 (0.1%) 1
    Atrial flutter 0/703 (0%) 0 1/699 (0.1%) 1
    Pericarditis 0/703 (0%) 0 1/699 (0.1%) 1
    Ear and labyrinth disorders
    Aural polyp 0/703 (0%) 0 1/699 (0.1%) 1
    Endocrine disorders
    Hyperthyroidism 0/703 (0%) 0 1/699 (0.1%) 1
    Eye disorders
    Vitreous haemorrhage 1/703 (0.1%) 1 0/699 (0%) 0
    Gastrointestinal disorders
    Constipation 1/703 (0.1%) 1 0/699 (0%) 0
    Dyspepsia 0/703 (0%) 0 1/699 (0.1%) 1
    Gastritis 0/703 (0%) 0 1/699 (0.1%) 1
    Mesenteric panniculitis 0/703 (0%) 0 1/699 (0.1%) 1
    Nausea 0/703 (0%) 0 1/699 (0.1%) 1
    General disorders
    Chest pain 1/703 (0.1%) 1 0/699 (0%) 0
    Infections and infestations
    Appendicitis 1/703 (0.1%) 1 1/699 (0.1%) 1
    Bursitis infective 1/703 (0.1%) 1 0/699 (0%) 0
    Cellulitis 1/703 (0.1%) 1 0/699 (0%) 0
    Gastrointestinal viral infection 0/703 (0%) 0 1/699 (0.1%) 1
    Hepatitis B 0/703 (0%) 0 1/699 (0.1%) 1
    Infective exacerbation of chronic obstructive airways disease 0/703 (0%) 0 1/699 (0.1%) 1
    Osteomyelitis 1/703 (0.1%) 1 0/699 (0%) 0
    Otitis media 1/703 (0.1%) 1 0/699 (0%) 0
    Rectal abscess 0/703 (0%) 0 1/699 (0.1%) 1
    Injury, poisoning and procedural complications
    Humerus fracture 0/703 (0%) 0 1/699 (0.1%) 1
    Thermal burn 0/703 (0%) 0 1/699 (0.1%) 3
    Investigations
    Blood ketone body increased 0/703 (0%) 0 1/699 (0.1%) 1
    Urine ketone body present 1/703 (0.1%) 1 0/699 (0%) 0
    Metabolism and nutrition disorders
    Diabetic ketoacidosis 5/703 (0.7%) 5 22/699 (3.1%) 26
    Hypoglycaemia 1/703 (0.1%) 1 3/699 (0.4%) 3
    Hyperglycaemia 1/703 (0.1%) 1 0/699 (0%) 0
    Lactic acidosis 0/703 (0%) 0 1/699 (0.1%) 1
    Metabolic acidosis 0/703 (0%) 0 1/699 (0.1%) 1
    Musculoskeletal and connective tissue disorders
    Rhabdomyolysis 0/703 (0%) 0 1/699 (0.1%) 1
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Invasive ductal breast carcinoma 1/703 (0.1%) 1 0/699 (0%) 0
    Lung neoplasm malignant 1/703 (0.1%) 1 0/699 (0%) 0
    Uterine leiomyoma 0/703 (0%) 0 1/699 (0.1%) 1
    Nervous system disorders
    Hypoglycaemic unconsciousness 4/703 (0.6%) 4 1/699 (0.1%) 1
    Encephalomalacia 0/703 (0%) 0 1/699 (0.1%) 1
    Hypoglycaemic coma 0/703 (0%) 0 1/699 (0.1%) 1
    Hypoglycaemic seizure 0/703 (0%) 0 1/699 (0.1%) 1
    Syncope 0/703 (0%) 0 1/699 (0.1%) 1
    Transient ischaemic attack 1/703 (0.1%) 1 0/699 (0%) 0
    Psychiatric disorders
    Alcoholism 1/703 (0.1%) 1 0/699 (0%) 0
    Anxiety 0/703 (0%) 0 1/699 (0.1%) 1
    Completed suicide 0/703 (0%) 0 1/699 (0.1%) 1
    Suicidal ideation 1/703 (0.1%) 1 0/699 (0%) 0
    Renal and urinary disorders
    Acute kidney injury 0/703 (0%) 0 1/699 (0.1%) 1
    Nephrolithiasis 0/703 (0%) 0 1/699 (0.1%) 1
    Respiratory, thoracic and mediastinal disorders
    Oropharyngeal pain 1/703 (0.1%) 1 0/699 (0%) 0
    Vascular disorders
    Hypotension 0/703 (0%) 0 1/699 (0.1%) 1
    Peripheral arterial occlusive disease 1/703 (0.1%) 1 0/699 (0%) 0
    Other (Not Including Serious) Adverse Events
    Placebo Sotagliflozin 400 mg
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 70/703 (10%) 70/699 (10%)
    Gastrointestinal disorders
    Diarrhoea 17/703 (2.4%) 22 35/699 (5%) 41
    Infections and infestations
    Viral upper respiratory tract infection 55/703 (7.8%) 62 41/699 (5.9%) 46

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    If no publication has occurred within 12 months of the completion of the study, the Investigator shall have the right to publish/present independently the results of the study. The Investigator shall provide the Sponsor with a copy of any such presentation/publication for comment at least 30 days before any presentation/submission for publication. If requested by the Sponsor, any presentation/submission shall be delayed up to 90 days, to allow the Sponsor to preserve its proprietary rights.

    Results Point of Contact

    Name/Title Trial Transparency Team
    Organization Sanofi
    Phone 800-633-1610 ext 1#
    Email Contact-US@sanofi.com
    Responsible Party:
    Lexicon Pharmaceuticals
    ClinicalTrials.gov Identifier:
    NCT02531035
    Other Study ID Numbers:
    • LX4211.1-312-T1DM
    • LX4211.312
    First Posted:
    Aug 21, 2015
    Last Update Posted:
    Feb 12, 2020
    Last Verified:
    Feb 1, 2020