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Diabetes Mellitus, Type 2Phase 2NCT00937326

Clinical Study to Assess the Safety and Pharmacokinetics of SRT2104 in Type 2 Diabetic Human Subjects

A Phase 2 study testing SRT2104 in people with Diabetes Mellitus, Type 2, run by Sirtris, a GSK Company at 61 sites in 8 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary purpose of this study is to determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days, and to characterize the pharmacokinetic profile of SRT2104 after a single dose and multiple administrations in type… Read more about this study

Who is it for?
Ages 30 to 70 years
Conditions the study is for
Diabetes Mellitus, Type 2
What is being tested?
SRT2104
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
227 participants
Where
61 sitesin 8 countries
Study dates
19 Aug 2009to 18 Sep 2010
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects of any race and gender within the age range of 30 to 70 years.
  • All female subjects must be of non-child-bearing potential. For the purposes of this study, this is defined as the subject being amenorrheic for at least 12 consecutive months, or at least 6 weeks post-surgical bilateral oophorectomy with or without hysterectomy, or women who underwent tubal ligation. Menopausal status will be confirmed by demonstrating levels of follicle stimulating hormone (FSH) 40 - 138 mIU/ml and oestradiol < 20 pg/ml at entry, unless this information is available in the subject's medical record. In the event a subject's menopause status has been clearly established (for example, the subject indicates she has been amenorrheic for 10 years), but FSH and/or oestradiol levels are not consistent with a post-menopausal condition, determination of subject eligibility will be at the discretion of the principal investigator following consultation with the sponsor and medical monitor
  • All male subjects must agree with their partners to use double-barrier birth control or abstinence while participating in the study and for 12 weeks following the last dose of study drug.
  • Willingness to provide written informed consent to participate in the study
  • HbA1c ≥ 7.5 and ≤ 10.5
  • Fasting glucose ≥ 160 and ≤ 240 mg/dL
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  • Body Mass Index (BMI) ≥ 25.0 kg/m^2 and ≤ 40.0 kg/m^2
  • On stable metformin medication for at least 3 months (≥ 1.0 g/day) prior to Screening
  • No prior history of HIV 1 or 2
  • Absence of disease markers for hepatitis B \& C virus
  • Absence of significant disease or clinically significant abnormal laboratory values on the laboratory evaluations, medical history or physical examination during the screening; normal end organ function
  • Have a normal 12-lead ECG or one with abnormality considered to be clinically insignificant
  • Have a normal chest X-ray (P. A. View) or one with abnormality considered to be clinically insignificant
  • Comprehension of the nature and purpose of the study and compliance with the requirement of the entire protocol

Who cannot join

  • Any major illness in the past three months or any significant ongoing chronic medical illness not related to diabetes
  • Renal or liver impairment, defined as serum creatinine level of ≥ 1.4 mg/dL for females and ≥ 1.5 mg/dL for males, and greater than two times the upper limit of normal for liver enzymes, respectively.
  • History of or current gastro-intestinal diseases influencing drug absorption, except for appendectomy
  • History, within 3 years, of drug abuse (including Benzodiazepines, opioids, amphetamine, cocaine, and THC)
  • History of alcoholism (more than two years), moderate drinkers (more than three drinks per day) or having consumed alcohol within 48 hrs prior to dosing [one drink is equal to one unit of alcohol (one glass wine, half pint beer, one measure of spirit)]
  • Participation in any clinical trial within the past three months
Show all 10Show fewer
  • History of difficulty in donating blood or accessibility of veins in left or right arm
  • Donation of blood (one unit or 350 ml) within three months prior to receiving the first dose of test material
  • Use of any prescription drug therapy, with exception of any prescription medication administered at a stable dose for at least 6 weeks prior to Screening, provided the medication is not contraindicated by the metformin label
  • Use of any alternate anti-diabetic therapy, except metformin, within three months of enrollment

Trial locations and contacts

61 sites in 8 countries.

61 sites in 8 countries

Russia16 sites
  • GSK Investigational Site

    Barnaul, 656024

  • GSK Investigational Site

    Kemerovo, 650061

  • GSK Investigational Site

    Kemerovo, 650099

  • GSK Investigational Site

    Moscow, 115 280

  • GSK Investigational Site

    Moscow, 119881

  • GSK Investigational Site

    Moscow, 121069

  • GSK Investigational Site

    Moscow, 127486

  • GSK Investigational Site

    Moscow, 129110

  • GSK Investigational Site

    Novosibirsk, 630068

  • GSK Investigational Site

    Novosibirsk, 630090

  • GSK Investigational Site

    Rostov-on-Don, 344022

  • GSK Investigational Site

    Saint Petersburg, 190103

  • GSK Investigational Site

    Saint Petersburg, 194354

  • GSK Investigational Site

    Tyumen, 625023

  • GSK Investigational Site

    Ufa, 450071

  • GSK Investigational Site

    Yaroslavl, 150062

Other trials in Russia

Bulgaria9 sites
  • GSK Investigational Site

    Byala, 7100

  • GSK Investigational Site

    Dimitrovgrad, 6400

  • GSK Investigational Site

    Haskovo, 6300

  • GSK Investigational Site

    Pleven, 5800

  • GSK Investigational Site

    Plovdiv, 4000

  • GSK Investigational Site

    Plovdiv, 4002

  • GSK Investigational Site

    Rousse, 7002

  • GSK Investigational Site

    Sofia, 1407

  • GSK Investigational Site

    Sofia, 1431

Other trials in Bulgaria

Poland9 sites
  • GSK Investigational Site

    Cieszyn, 43-400

  • GSK Investigational Site

    Lubin, 20-090

  • GSK Investigational Site

    Lubin, 59-301

  • GSK Investigational Site

    Puławy, 24-100

  • GSK Investigational Site

    Radzymin, 05-250

  • GSK Investigational Site

    Ruda Śląska, 41-709

  • GSK Investigational Site

    Słupsk, 76-200

  • GSK Investigational Site

    Tychy, 43-100

  • GSK Investigational Site

    Warsaw, 04-141

Other trials in Poland

Hungary7 sites
  • GSK Investigational Site

    Balantonfured, 8230

  • GSK Investigational Site

    Eger, 3300

  • GSK Investigational Site

    Gyula, 5701

  • GSK Investigational Site

    Kecskemét, 6000

  • GSK Investigational Site

    Sopron, 9400

  • GSK Investigational Site

    Szekszárd, 7100

  • GSK Investigational Site

    Zalaegerszeg, 8900

Other trials in Hungary

Romania7 sites
  • GSK Investigational Site

    Bacau, 600114

  • GSK Investigational Site

    Brăila, 810249

  • GSK Investigational Site

    Buzău, 120257

  • GSK Investigational Site

    Constanța, 900591

  • GSK Investigational Site

    Oradea, 410169

  • GSK Investigational Site

    Ploieşti, 100097

  • GSK Investigational Site

    Timișoara, 300456

Other trials in Romania

Ukraine7 sites
  • GSK Investigational Site

    Kharkiv, 61022

  • GSK Investigational Site

    Mykolaiv, 54003

  • GSK Investigational Site

    Simferopol, 95017

  • GSK Investigational Site

    Ternopil, 46001

  • GSK Investigational Site

    Vinnitsa, 21010

  • GSK Investigational Site

    Zaporizhzhya, 69001

  • GSK Investigational Site

    Zaporizhzhya, 69035

Other trials in Ukraine

Estonia3 sites
  • GSK Investigational Site

    Tallinn, 10138

  • GSK Investigational Site

    Tallinn, 10617

  • GSK Investigational Site

    Tallinn, 13419

Other trials in Estonia

United Kingdom3 sites
  • GSK Investigational Site

    Birmingham, B9 5SS

  • GSK Investigational Site

    London, SE 1 9RT

  • GSK Investigational Site

    Newport, PO30 5TG

Other trials in United Kingdom

About this study

Official title: A Phase II, Randomized, Placebo-Controlled, Double-Blind, Multiple-Dose Clinical Study to Assess the Safety and Pharmacokinetics of SRT2104 in Type 2 Diabetic Human Subjects

The primary purpose of this study is to determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days, and to characterize the pharmacokinetic profile of SRT2104 after a single dose and multiple administrations in type 2 diabetic subjects.

The secondary purpose of this study is to determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.

Read the detailed description

Study Objectives

Primary:

  1. To determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days.
  2. To characterize the pharmacokinetic profile of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) after a single dose and multiple administrations in type 2 diabetic subjects.

Secondary:

  1. To determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.

Study Design:

Prospective, multi-center, clinical study of SRT2104 administered orally once daily for 28 consecutive days; randomized, placebo-controlled, double-blind, multiple-dose, inpatient/outpatient study to assess the safety and pharmacokinetics (PK) of SRT2104 in type 2 diabetic male and female subjects on an existing, stable, background metformin therapy. Approximately 225 subjects aged 30-70, who fulfill the inclusion/exclusion criteria, will be enrolled in this study to ensure completion of forty (40) evaluable subjects within each of five dosing groups. Subjects will be evenly randomized to receive SRT2104 at one of five doses, placebo (A), 0.25 g/day (B), 0.5 g/day (C), 1.0 g/day (D), or 2.0 g/day (E), once a day for 28 consecutive days, approximately 15 minutes following consumption of a standardized meal. Subjects will remain on a fixed dose of test material for all dosing days in the study.

Subjects will sign the informed consent form at the Screening Visit, and will undergo screening assessments over a 2-day period to verify eligibility for the study. If eligible and willing to participate, subjects will return to the clinic within 21 days of the Screening Visit to participate in the dosing phase of the study. Subjects will be randomized to receive SRT2104 or placebo, and will be required to stay overnight at the study center on Day -1 and Day 27 to gather required PK samples and to assess safety on Day 1 and Day 28 respectively. In addition, subjects will be asked to return to the study center on Days 2 and 29; for three interim weekly safety assessments (on Days 8, 15, 22); and for an End of Study safety assessment 7 days after they complete the 28-day dosing period. A follow-up safety call will be made to each subject 30 days following their final dose of SRT2104 or placebo.

Being tested
SRT2104, Placebo
Medical subject headings
Diabetes Mellitus, Type 2

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SRT2104Drug

    SRT2104 will be supplied as hard gelatin capsules, with each containing 250 mg.

  • PlaceboDrug

    Placebo will be supplied as hard gelatin capsules, with each containing an appropriate amount of placebo.

Study groups in NCT00937326
Study groupRoleWhat they receive
PlaceboPlacebo comparatorThe Placebo treatment group will be administered eight placebo capsules per day. Placebo will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, approximately 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water.
Receives: Drug: Placebo
Arm1 - 0.25gActive comparatorThe 0.25g SRT2104 treatment group will be administered one SRT2104 capsules with 7 placebo capsules, for a total of 8 capsules per day. 0.25g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water.
Receives: Drug: SRT2104; Drug: Placebo
Arm2 - 0.5gActive comparatorThe 0.5g SRT2104 treatment group will be administered two SRT2104 capsules with 6 placebo capsules, for a total of 8 capsules per day. 0.5g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water.
Receives: Drug: SRT2104; Drug: Placebo
Arm3 - 1gActive comparatorThe 1g SRT2104 treatment group will be administered four SRT2104 capsules with four placebo capsules, for a total of 8 capsules per day. 1g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water.
Receives: Drug: SRT2104; Drug: Placebo
Arm4 - 2gActive comparatorThe 2g SRT2104 treatment group will be administered eight SRT2104 capsules per day. 2g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water.
Receives: Drug: SRT2104

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Any Adverse Event (AE), Serious Adverse Event (SAE), AE Related to Study Medication, AE Leading to Discontinuation and Fatal AE of Death

    An AE is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect, may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition. AE's were classified as related to the study medication, based on the investigator's judgment.

    Measured: Up to Follow-up (58 days)

  2. Number of Participants With AE by Intensity of Mild, Moderate and Severe

    Intensity for each AE was categorized as mild, moderate and severe. Mild was defined as awareness of sign or symptom, but easily tolerated; moderate was defined as discomfort enough to cause interference with normal daily activities; severe was defined as inability to perform normal daily activities.

    Measured: Up to Follow-up (58 days)

  3. Mean Change From Baseline in Weight Over Time

    Participant's body weight was assessed in the beginning of the study (at Day 1) and at the end of the study (Day 28 and Day 35). The clinical staff was instructed to use calibrated scales for weight measurement. The same scale was used at the clinical site for all participants at each specified time point during the study. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  4. Change From Baseline in Vital Sign Parameter of Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) Over Time

    Vital sign assessment of SBP and DBP was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.

    Measured: Baseline (Day 1, pre-dose) and up to Day 35

  5. Change From Baseline in Vital Sign Parameter of Heart Rate (HR) Over Time

    Vital sign assessment of HR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.

    Measured: Baseline (Day 1, pre-dose) and up to Day 35

  6. Change From Baseline in Vital Sign Parameter of Respiratory Rate (RR) Over Time

    Vital sign assessment of RR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.

    Measured: Baseline (Day 1, pre-dose) and up to Day 35

  7. Change From Baseline in Vital Sign Parameter of Temperature Over Time

    Vital sign assessment of temperature was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.

    Measured: Baseline (Day 1, pre-dose) and up to Day 35

  8. Change From Baseline in Electrocardiogram (ECG) Values Over Time

    12-lead ECG was obtained in the rested state. Participants lied in supine position with ECG leads on for at least 5 minutes prior to ECG recording. The ECG was performed at Day 1 (pre-dose and post-dose), Day 8, Day 15, Day 22, Day 28 (pre-dose and pre-dose) and Day 35, and included the assessment of PR interval, QRS interval, QT interval and QTc interval. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1 [post-dose], Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1, pre-dose) and up to Day 35

  9. Change From Baseline in Hematology Parameters of Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet and White Blood Cell (WBC) Count Over Time

    Assessment for basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet and white blood cell (WBC) count were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  10. Change From Baseline in Hematology Parameter of Red Blood Cell (RBC) Count Over Time

    Assessment for RBC count was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  11. Change From Baseline in Hematology Parameter of Hematocrit Over Time

    Assessment for hematocrit was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  12. Change From Baseline in Hematology Parameter of Hemoglobin Over Time

    Assessment for hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  13. Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Over Time

    Assessment for mean corpuscular hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  14. Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Concentration Over Time

    Assessment for mean corpuscular hemoglobin concentration was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  15. Change From Baseline in Hematology Parameter of Mean Corpuscular Volume Over Time

    Assessment for mean corpuscular volume was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  16. Change From Baseline in Coagulation Parameters of Activated Partial Thromplastin Time (aPTT) and Prothrombin Time (PT) Over Time

    Assessment for aPTT and PT were performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.

    Measured: Baseline (Day 1), Day 28 and Day 35

  17. Change From Baseline in Coagulation Parameter of International Normalized Ratio Over Time

    Assessment for international normalized ratio was performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.

    Measured: Baseline (Day 1), Day 28 and Day 35

  18. Change From Baseline in Chemistry Parameters of Alanine Aminotransferase (ALT), Aspartate Aminotrasferase (AST), Alkaline Phosphatase (ALP), Creatinine Phosphokinase and Lactate Dehydrogenase (LDH) Over Time

    Assessment for ALT, AST, ALP, creatinine phosphokinase and LDH were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  19. Change From Baseline in Chemistry Parameter of Bicarbonate, Blood Urea Nitrogen (BUN), Calcium, Chloride, Magnesium, Phosphate, Potassium and Sodium Over Time

    Assessment for bicarbonate, BUN, calcium, chloride, magnesium, phosphate, potassium and sodium were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  20. Change From Baseline in Chemistry Parameter of Direct Bilirubin, Indirect Bilirubin, Serum Creatinine, Total Bilirubin and Uric Acid Over Time

    Assessment for direct bilirubin, indirect bilirubin, serum creatinine, total bilirubin and uric acid were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  21. Change From Baseline in Chemistry Parameter of Lipid Profile Over Time

    Assessment for lipid profile was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. The parameters included high density lipoprotein (HDL), low density lipoprotein (LDL), total cholesterol and triglycerides. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  22. Change From Baseline in Chemistry Parameter of Albumin and Total Protein Over Time

    Assessment for albumin and total protein were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  23. Change From Baseline in Urinalysis Parameter of Specific Gravity Over Time

    Urinary specific gravity is a measure of the concentration of solutes in urine. It measures the ratio of urine density compared with water density and provides information on the kidney's ability to concentrate urine. The assessments were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  24. Change From Baseline in Urinalysis Parameter of pH Over Time

    Urinalysis parameter included urine pH. pH was calculated on a scale of 0 to 14, such that, the lower the number, more acidic the urine and higher the number, more alkaline the urine with 7 being neutral. The assessment was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  25. Area Under Plasma Concentration Curve From Time 0 to Last Measurable Time Point (AUC 0-t), From Time 0 to Infinity (AUC 0-infinity) and From Time 0 to Trough Concentration (AUC 0-τ) of SRT2104 on Day 1 and Day 28

    The pre-dose blood samples were collected within one hour prior to study medication administration. The post-dose blood samples were collected within 2 minutes of the scheduled time. AUC values reported in the analysis of AUC 0-infinity of Day 28 versus Day 1 included AUC 0-infinity on Day 1 and AUC 0-τ on Day 28. Participants fasted for at least 10 hour overnight on Day 1, 2 and 29. The AUC 0-t was determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. AUC0-infinity was estimated by linear trapezoidal rule and was sum of the AUC0-t and extrapolated to infinity by dividing the estimated last measurable plasma concentration by elimination rate constant lambda z. Where lambda z is the terminal phase rate constant estimated by linear regression analysis of the log10 transformed concentration-time data after each single dose. The AUC0-infinity was the sum of the estimated and extrapolated parts.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28)

  26. Observed Maximum Plasma Concentration (Cmax) of SRT2104 at Day 1 and Day 28

    Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. On Day 1, Day 2 and Day 29, participants fasted for at least 10 hour overnight. The post-dose sample was collected within 2 minutes of the scheduled time. The first occurrence of the Cmax was determined directly from the raw concentration-time data.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)

  27. Time to Cmax (Tmax) at Day 1 and Day 28

    Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. The time at which Cmax was observed was determined directly from the raw concentration-time data.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)

  28. Terminal Elimination Half Life (T1/2) of SRT2104 at Day 1 and Day 28

    Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight. The t1/2 was obtained as the ratio of ln2/λz, where λz is the terminal phase rate constant estimated by linear regression analysis of the concentration-time data.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)

  29. Apparent Total Clearance of SRT2104 From Plasma After Oral Administration (CL/F) on Day 1 and Day 28

    Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)

  30. Apparent Volume of Distribution After Oral Administration (Vd/F) at Day 1 and Day 28

    Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.

    Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)

Secondary outcomes (15)
  1. Mean Fasting Plasma Glucose (FPG) Levels Over Time

    The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35.

    Measured: Up to Day 35

  2. Change From Baseline in FPG Levels Over Time

    The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. Baseline was defined as the assessment done on Day 1. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  3. Mean Fasting Plasma Insulin (FPI) Levels Over Time

    The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35.

    Measured: Up to Day 35

  4. Change From Baseline in FPI Over Time

    The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. Baseline was defined as the assessment done on Day 1. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.

    Measured: Baseline (Day 1) and up to Day 35

  5. Mean Post-prandial Glucose (PPG) and Post-prandial Insulin (PPI) Levels at Day 28

    The assessment of PPG and PPI was performed on Day 28 at 30 minutes, 60 minutes and 2 hour after the participant consumed the standardized meal (morning breakfast).

    Measured: Day 28

  6. Change From Baseline in PPG and PPI Levels at Day 28

    The assessment of PPG and PPI was performed at 30 minutes, 60 minutes and 2 hour after the participant consumed the standardized meal (morning breakfast) on Day 1 and Day 28. Baseline for PPG was defined as the assessment value of FPG done on Day 1 and Baseline for PPI was defined as the assessment value of FPI done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (30 min, 60 min and 2 h at Day 28) values.

    Measured: Baseline (Day 1) and Day 28

  7. Mean Glycosylated Hemoglobin A (HbA1c) Levels on Day 28

    The sample for HbA1c assessment was collected on Day 28. HbA1c is used to show how well their diabetes is being controlled in participants with diabetes. The HbA1c test gives the average blood glucose levels over the pervious two to three months.

    Measured: Day 28

  8. Change From Baseline in HbA1c Levels at Day 28

    HbA1c is used to show how well their diabetes is being controlled in participants with diabetes. The HbA1c test gives the average blood glucose levels over the pervious two to three months. The sample for HbA1c assessment was collected on Day 1 and Day 28. Baseline value was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.

    Measured: Baseline (Day 1) and Day 28

  9. AUC From Time 0 to 1 h (AUC 0-1) and AUC From Time 0 to 2 h (AUC 0-2) for PPG and PPI at Day 1 and Day 28

    The assessment of PPG and PPI was performed at 30 minutes, 60 minnutes and 2 hour after the participant consumed the standardized meal (morning breakfast) on Day 1 and Day 28. AUC with respect to these time interval was calculated using the linear trapezoidal rule by the sum of the areas between each chronological pair of assessments (using observed times) for PPG and PPI.

    Measured: Day 1 (30 minutes, 60 minutes and 2 hour) and Day 28 (30 minutes, 60 minutes and 2 hour)

  10. Mean Fructosamine Levels at Day 1 and Day 28

    Fructosamine (a glycated protein) level enables assessment of long-term glycemic control in participants with diabetes mellitus. The blood samples for fructosamine assessment was obtained at Day 1 and Day 28.

    Measured: Day 1 and Day 28

  11. Change From Baseline in Fructosamine Levels at Day 28

    Fructosamine (a glycated protein) level enables assessment of long-term glycemic control in participants with diabetes mellitus. The blood samples for fructosamine assessment was obtained at Day 1 and Day 28. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.

    Measured: Baseline (Day 1) and Day 28

  12. Mean Homeostatic Model Assessment-insulin Resistance (HOMA-IR) at Day 1 and Day 28

    HOMA-IR was derived from FPG and FPI as: FPI (micro units [mU]/mL)*FPG (mmol per liter) divided by 22.5. HOMA-IR was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28.

    Measured: Day 1 and Day 28

  13. Change From Baseline in HOMA-IR at Day 28

    HOMA-IR was derived from FPG and FPI as: FPI (mU/mL)*FPG (mmol per liter) divided by 22.5. HOMA-IR was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.

    Measured: Baseline (Day 1) and Day 28

  14. Mean HOMA-percentage Cell Beta Function at Day 1 and Day 28

    HOMA-percentage cell beta function was derived from FPG and FPI as: 20*FPI (mU/mL) divided by FPG (mmol per liter) minus 3.5. HOMA-percentage cell beta function was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28.

    Measured: Day 1 and Day 28

  15. Change From Baseline in HOMA-percentage of Beta Cell Function at Day 28

    HOMA-percentage cell beta function was derived from FPG and FPI as: 20*FPI (mU/mL) divided by FPG (mmol per liter) minus 3.5. HOMA-percentage cell beta function was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28. Baseline was defined as assessment done on Day 1. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.

    Measured: Baseline (Day 1) and Day 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2009 (estimated)
  2. Study start19 Aug 2009
  3. Primary completion18 Sep 2010
  4. Study completion18 Sep 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
227 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00937326
Sponsor's protocol ID
113160
Status last verified
Aug 2017
First submitted
9 Jul 2009
Last updated
13 Jul 2018
Data monitoring committee
No
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SRT2104 in people with Diabetes Mellitus, Type 2, run by Sirtris, a GSK Company at 61 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 14 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 61 sites in Russia, Bulgaria, Poland, Hungary, Romania and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Apr 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Any Adverse Event (AE), Serious Adverse Event (SAE), AE Related to Study Medication, AE Leading to Discontinuation and Fatal AE of Death (time frame: Up to Follow-up (58 days)). The study lists 30 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2018.

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