['type 1 diabetes mellitus']
['sar342434', 'humalog', 'insulin glargine hoe901']

        Inclusion criteria:

          -  Participants with T1DM diagnosed for at least 12 months and had been treated with
             insulin glargine and Humalog or Novolog®/Novo Rapid® (at least 3 times daily before
             each meal) in the 6 months prior to the screening visit.

          -  Written informed consent.

        Exclusion criteria:

          -  At screening visit, age under legal age of adulthood.

          -  HbA1c <7.0% or >10% at screening.

          -  Diabetes other than T1DM.

          -  Status post pancreatectomy.

          -  Status post pancreas and/or islet cell transplantation.

          -  Pregnancy and lactation.

          -  Women of childbearing potential not protected by highly effective contraceptive method
             of birth control.

          -  Less than 1 year on continuous insulin treatment.

          -  Use of insulin pump in the last 6 months before screening visit.

          -  Use of glucose lowering treatments other than insulin including non-insulin injectable
             peptides in the last 6 months prior to screening visit.

          -  Use of insulin other than insulin glargine and Humalog or Novolog/Novo Rapid as part
             of a multiple injection regimen (3 to 4 injections per day) in the last 6 months
             before screening visit. Liprolog® is a European Union approved insulin lispro and is
             allowed in those countries where it is marketed.

          -  Hospitalization for diabetic ketoacidosis in the last 6 months before screening visit.

          -  Unstable proliferative diabetic retinopathy or any other rapidly progressive diabetic
             retinopathy or macular edema likely to require treatment (eg, laser, surgical
             treatment, or injectable drugs) during the study period.

        The above information is not intended to contain all considerations relevant to a
        participant's potential participation in a clinical trial.
      