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The ORIGIN Trial (Outcome Reduction With Initial Glargine Intervention) (ORIGIN)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00069784
First Posted: October 6, 2003
Last Update Posted: January 31, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Collaborator:
Population Health Research Institute
Information provided by (Responsible Party):
Sanofi
Results First Submitted: December 18, 2012  
Study Type: Interventional
Study Design: Allocation: Randomized;   Intervention Model: Factorial Assignment;   Masking: None (Open Label);   Primary Purpose: Treatment
Condition: Diabetes Mellitus, Non-Insulin-Dependent
Interventions: Drug: insulin glargine (HOE901)
Drug: omega-3 polyunsaturated fatty acids (PUFA)
Drug: placebo
Device: reusable pen device for insulin injection

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
This study was conducted at 575 sites in 40 countries between August 22, 2003 and December 19, 2011. Three sites were closed and data from these sites were not analyzed following site audits and in compliance with rulings from national health authorities.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
The purpose of the factorial design was to efficiently answer two independent scientifically worthwhile questions regarding insulin glargine and omega-3 fatty acids within the context of a single clinical trial. Sample size was determined based on the insulin glargine study objective. Results reported below are those of the insulin glargine study.

Reporting Groups
  Description
Insulin Glargine Treatment with Insulin Glargine with or without omega-3 polyunsaturated fatty acids
Standard Care Standard care with or without omega-3 polyunsaturated fatty acids

Participant Flow:   Overall Study
    Insulin Glargine   Standard Care
STARTED   6264 [1]   6273 [1] 
Safety Population (Treated)   6231 [2]   6273 [3] 
COMPLETED   5052 [4]   6273 [5] 
NOT COMPLETED   1212   0 
Adverse Event                105                0 
Withdrawal by Subject                1090                0 
Other                17                0 
[1] randomized participants = intent-to-treat (ITT) population
[2] randomized patients who received at least one dose of insulin glargine
[3] patients randomized to standard care arm
[4] completed study treatment
[5] not applicable (no treatment)



  Baseline Characteristics


  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Composite of the First Occurrence of Cardiovascular (CV) Death, Nonfatal Myocardial Infarction (MI) or Nonfatal Stroke   [ Time Frame: from randomization until study cut-off date (median duration of follow-up: 6.2 years) ]

2.  Primary:   Composite of the First Occurrence of Cardiovascular (CV) Death, Nonfatal Myocardial Infarction (MI), Nonfatal Stroke, Revascularization Procedure or Hospitalization for Heart Failure (HF)   [ Time Frame: from randomization until study cut-off date (median duration of follow-up: 6.2 years) ]

3.  Secondary:   Total Mortality (All Causes)   [ Time Frame: from randomization until study cut-off date (median duration of follow-up: 6.2 years) ]

4.  Secondary:   Composite Diabetic Microvascular Outcome (Kidney or Eye Disease)   [ Time Frame: from randomization until study cut-off date (median duration of follow-up: 6.2 years) ]
  Hide Outcome Measure 4

Measure Type Secondary
Measure Title Composite Diabetic Microvascular Outcome (Kidney or Eye Disease)
Measure Description

The composite outcome used to analyze microvascular disease progression contained components of clinical events:

  • the occurrence of laser surgery or vitrectomy for diabetic retinopathy (DR);
  • the development of blindness due to DR;
  • the occurrence of renal death or renal replacement therapy; as well as the following laboratory-based events:
  • doubling of serum creatinine; or
  • progression of albuminuria (from none to microalbuminuria [at least 30 mg/g creatinine], to macroalbuminuria [at least 300 mg/g creatinine]).
Time Frame from randomization until study cut-off date (median duration of follow-up: 6.2 years)  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.

The analysis was based on the intent-to-treat (ITT) population i.e. all randomized participants.

For the endpoint's composition, the numbers only summarize the event when it was the first occurrence of the endpoint. A participant is counted only once within a category. The same participant may appear in different categories.


Reporting Groups
  Description
Insulin Glargine Treatment with Insulin Glargine with or without omega-3 polyunsaturated fatty acids
Standard Care Standard care with or without omega-3 polyunsaturated fatty acids

Measured Values
   Insulin Glargine   Standard Care 
Participants Analyzed 
[Units: Participants]
 6264   6273 
Composite Diabetic Microvascular Outcome (Kidney or Eye Disease) 
[Units: Participants]
   
Participants with a composite endpoint   1323   1363 
Endpoint's composition: vitrectomy   24   25 
Endpoint's composition: laser therapy for DR   57   67 
Endpoint's composition: dialysis   18   28 
Endpoint's composition: renal transplant   0   0 
Endpoint's composition: serum creatinine doubled   82   88 
Endpoint's composition: death due to renal failure   4   3 
Endpoint's composition: albuminuria progression   1153   1171 


Statistical Analysis 1 for Composite Diabetic Microvascular Outcome (Kidney or Eye Disease)
Groups [1] All groups
Statistical Test Type [2] Superiority or Other
Cox Proportional Hazard [3] 0.970
95% Confidence Interval 0.900 to 1.047
[1] Additional details about the analysis, such as null hypothesis and power calculation:
  No text entered.
[2] Details of power calculation, definition of non-inferiority margin, and other key parameters:
  No text entered.
[3] Other relevant estimation information:
  Hazard ratio (glargine/standard care) estimated by Cox regression model with treatment (glargine, standard care) as factor, with double-blind treatment (omega-3 PUFA, placebo), baseline diabetes diagnosis and previous CV event as covariates.



5.  Secondary:   Incidence of Development of Type 2 Diabetes Mellitus in Participants With IGT and/or IFG   [ Time Frame: from randomization until the last follow-up visit or last OGTT (median duration of follow-up: 6.2 years) ]

6.  Other Pre-specified:   Number of Patients With Various Types of Symptomatic Hypoglycemia Events   [ Time Frame: on-treatment period (median duration of follow-up: 6.2 years) ]

7.  Other Pre-specified:   Number of Patients With First Occurrence of Any Type of Cancer   [ Time Frame: from randomization until study cut-off date (median duration of follow-up: 6.2 years) ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
  Hide Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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  More Information