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An Extension Protocol to Evaluate Dose Comparisons of Leucine-Metformin Combinations in Type 2 Diabetic Patients

An Extension of Protocol NS-0100-01 to Evaluate the Safety and Effect of Various Fixed-Dose Leucine and Metformin Combinations (NS-0100) Versus Standard Metformin Mono-therapy on Glycemic Control in Subjects With Type 2 Diabetes

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02435277
Enrollment
50
Registered
2015-05-06
Start date
2014-10-31
Completion date
2016-01-31
Last updated
2018-01-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 2 Diabetes Mellitus

Keywords

Diabetes

Brief summary

Study NS-0100-01E is an extension of Study NS-01-0100 designed to assess safety and longer term effect (i.e., additional 8 weeks) of various fixed-dose leucine and metformin combinations (NS-0100) versus standard metformin monotherapy on glycemic control in subjects with type 2 diabetes using HbA1c as the primary endpoint.

Detailed description

This is a randomized, 8-week, extension of Study NS-0100-01, to evaluate the effect of various fixed-dose (FDC) combinations of leucine and metformin compared to standard metformin monotherapy on glycemic control. Subjects meeting all inclusion criteria and no exclusion criteria for the extension study, including completion of the 4-week treatment period of Study NS-0100-01 \[Day 28/Visit 7\]), will be eligible to enroll into the extension. During participation in the extension, subjects will continue to receive their assigned treatment based upon the randomization that occurred on Day 1 (Visit 4) of Study NS-0100-0. The study will include a total of 3 visits: Visit 1E (Day 28/Visit 7 of Study NS-0100-01), Visit 2E (Day 56/Week 8), and Visit 3E (Day 84/Week 12). Key assessments at Visit 2E and Visit 3E include HbA1c, fasting plasma glucose, and plasma insulin. In addition, 3-hour standardized meal tests will be performed on Day 28 (as part of the Study Termination \[Visit 7\] procedures of Study NS-0100-01 prior to enrolling into the extension) and at Study Termination for the extension (Visit 3E \[Day 84/Week 12\]).

Interventions

1100 mg L Leucine in combination with 125 mg of Metformin BID

1100 mg L Leucine in combination with 250mg Metformin BID

1100 mg of L Leucine in combination with 500 mg Metformin BID

DRUGMetformin

500 mg Metformin BID until day 14 with dose escalation at day 14 to 850 mg Metformin BID

Sponsors

NuSirt Biopharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Has completed Study NS-0100-01, including all procedures required at Study Termination (Day 28/Visit 7) without major protocol deviations 2. Is male, or female and, if female, meets all of the following criteria: * Not breastfeeding * Post-menopausal or negative pregnancy test result (human chorionic gonadotropin, beta subunit \[β-hCG\]) at Screening (Visit 1) (not required for hysterectomized females) * If of childbearing potential (including perimenopausal women who have had a menstrual period within one year) and sexually active, must practice and be willing to continue to practice appropriate birth control (defined as a method which results in a low failure rate, i.e., less than 1% per year, when used consistently and correctly, such as double barrier methods \[male condom with spermicide, with or without cervical cap or diaphragm\], implants, injectables, oral contraceptives \[must have been using for at least the last 3 months\], some intrauterine contraceptive devices, tubal ligation, or a vasectomized partner) during the entire duration of the study. 3. Is able to read, understand, and sign the informed consent forms (ICF) and if applicable, an authorization to use and disclose protected health information form (consistent with health insurance portability and accountability act of 1996 \[HIPAA\] legislation), communicate with the investigator, and understand and comply with protocol requirements.

Exclusion criteria

Subjects who meet any of the following criteria will be excluded from the study. 1. Is undesirable as a study participant as judged by the investigator (e.g., exhibited poor compliance during Study NS-0100-01) 2. Is expected to require treatment, or if currently on a stable dose, changes to their regimen of the following medications: * Lipid-lowering agents * Anti-hypertensive medications * Thyroid replacement therapy * Non-steroidal anti-inflammatory agents 3. Is expected to require or undergo treatment with any of the following medications: * Antidiabetes medications (with the exception of study medication \[i.e., metformin\]) * Oral or parenteral steroids.

Design outcomes

Primary

MeasureTime frameDescription
Change in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin CombinationsBaseline and 12 weeksChange in HbA1c from Baseline (Day 1/Visit 1) of Study NS-0100-01 to Week 12 (Day 84/Visit 3E) in subjects receiving various fixed-dose combinations of leucine and metformin compared to standard metformin monotherapy.

Secondary

MeasureTime frameDescription
Change in Fasting Plasma GlucoseBaseline and 12 weeksChange in fasting plasma glucose from Baseline (Day 1/Visit 1) of Study NS-0100-01 to Week 12 (Day 84/Visit 3E). Based on the pre-specified mixed model inferential statistical analysis, there was an apparent dose-dependent relationship for the mean decrease from baseline in fasting plasma glucose for the fixed dose leucine amd metformin combination treatments A, B and C.

Countries

United States

Participant flow

Recruitment details

Study NS-0100-01E was a randomized, double-blind 8-week extension of Study NS-0100-01 to evaluate the effect of various fixed-dose combinations of leucine and metformin compared to standard metformin monotherapy on glycemic control.

Pre-assignment details

Subjects meeting all inclusion criteria and no exclusion criteria for the NS-001-01-E, including completion of the 4-week treatment period of Study NS-0100-01 (Day 28/Visit 7), were eligible to enroll into the NS-001-01-E.

Participants by arm

ArmCount
FDC 125
Leucine 1100mg +Metformin 125mg
12
FDC 250
Leucine 1100mg +Metformin 250mg
16
FDC 500
Leucine 1100mg +Metformin 500mg
11
Control
850mg Metformin
11
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1100
Overall StudyWithdrawal by Subject1000

Baseline characteristics

CharacteristicFDC 125FDC 250FDC 500ControlTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants3 Participants3 Participants2 Participants10 Participants
Age, Categorical
Between 18 and 65 years
10 Participants13 Participants8 Participants9 Participants40 Participants
Age, Continuous51.8 years
STANDARD_DEVIATION 10.81
56.1 years
STANDARD_DEVIATION 8.24
59.8 years
STANDARD_DEVIATION 9.01
60.5 years
STANDARD_DEVIATION 8.77
56.9 years
STANDARD_DEVIATION 9.52
Body Mass Index (BMI)33.298 (kg/m^2
STANDARD_DEVIATION 4.4952
31.647 (kg/m^2
STANDARD_DEVIATION 6.3242
28.627 (kg/m^2
STANDARD_DEVIATION 4.5195
32.677 (kg/m^2
STANDARD_DEVIATION 5.3808
31.606 (kg/m^2
STANDARD_DEVIATION 5.4597
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants8 Participants2 Participants4 Participants19 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants8 Participants9 Participants7 Participants31 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Fasting Plasma Glucose173.5 mg/dL
STANDARD_DEVIATION 31.13
150.5 mg/dL
STANDARD_DEVIATION 26.78
179.2 mg/dL
STANDARD_DEVIATION 36.04
177.1 mg/dL
STANDARD_DEVIATION 53.67
168.2 mg/dL
STANDARD_DEVIATION 38
Haemoglobin A1c (HbA1c)7.56 %
STANDARD_DEVIATION 0.644
7.83 %
STANDARD_DEVIATION 0.769
7.84 %
STANDARD_DEVIATION 0.545
7.92 %
STANDARD_DEVIATION 0.645
7.79 %
STANDARD_DEVIATION 0.661
Previous Metformin experience
No Previous Experience
2 Participants1 Participants3 Participants2 Participants8 Participants
Previous Metformin experience
Prior taken metformin: Had abdominal side effects
1 Participants4 Participants1 Participants1 Participants7 Participants
Previous Metformin experience
Prior taken metformin: No Abdominal side effects
9 Participants11 Participants7 Participants8 Participants35 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants2 Participants5 Participants4 Participants13 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
10 Participants13 Participants6 Participants7 Participants36 Participants
Sex: Female, Male
Female
8 Participants8 Participants6 Participants7 Participants29 Participants
Sex: Female, Male
Male
4 Participants8 Participants5 Participants4 Participants21 Participants
Weight93.343 kg
STANDARD_DEVIATION 19.0179
91.314 kg
STANDARD_DEVIATION 18.7664
87.497 kg
STANDARD_DEVIATION 21.2259
90.500 kg
STANDARD_DEVIATION 18.4163
90.782 kg
STANDARD_DEVIATION 18.823

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 120 / 160 / 110 / 11
other
Total, other adverse events
2 / 122 / 162 / 111 / 11
serious
Total, serious adverse events
0 / 121 / 160 / 110 / 11

Outcome results

Primary

Change in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin Combinations

Change in HbA1c from Baseline (Day 1/Visit 1) of Study NS-0100-01 to Week 12 (Day 84/Visit 3E) in subjects receiving various fixed-dose combinations of leucine and metformin compared to standard metformin monotherapy.

Time frame: Baseline and 12 weeks

Population: Mixed Model Inferential Statistical Analysis of HbA1c change from day 1-day 84 Evaluable Population (n=43)

ArmMeasureValue (MEAN)Dispersion
FDC 125Change in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin Combinations0.10 percent HbA1cStandard Deviation 0.756
FDC 250Change in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin Combinations-0.12 percent HbA1cStandard Deviation 0.987
FDC 500Change in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin Combinations-0.05 percent HbA1cStandard Deviation 0.807
ControlChange in HbA1c Levels in Patient Receiving the Various Doses of Leucine and Metformin Combinations-0.83 percent HbA1cStandard Deviation 0.627
Comparison: Mixed Model Inferential Statistical Analysis of HbA1c change from day 1-day 84 Evaluable Population (n=43)p-value: 0.0475ANCOVA
p-value: 0.0912ANCOVA
p-value: 0.0458ANCOVA
Secondary

Change in Fasting Plasma Glucose

Change in fasting plasma glucose from Baseline (Day 1/Visit 1) of Study NS-0100-01 to Week 12 (Day 84/Visit 3E). Based on the pre-specified mixed model inferential statistical analysis, there was an apparent dose-dependent relationship for the mean decrease from baseline in fasting plasma glucose for the fixed dose leucine amd metformin combination treatments A, B and C.

Time frame: Baseline and 12 weeks

Population: Mixed Model Inferential Statistical Analysis of Fasting Plasma Glucose change from day 1-day 84 in Evaluable Population (n=43)

ArmMeasureValue (MEAN)Dispersion
FDC 125Change in Fasting Plasma Glucose-15.8 mg/dLStandard Deviation 22.29
FDC 250Change in Fasting Plasma Glucose11.2 mg/dLStandard Deviation 22.37
FDC 500Change in Fasting Plasma Glucose-4.3 mg/dLStandard Deviation 39.91
ControlChange in Fasting Plasma Glucose-36.3 mg/dLStandard Deviation 45.47
Comparison: Mixed Model Inferential Statistical Analysis of Fssting Plasma Glucose change from day 1-day 84 in Evaluable Population (n=43)p-value: 0.26ANCOVA
p-value: 0.0083ANCOVA
p-value: 0.0317ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026