Omnipod 5 System Compared to Pump Therapy

Inclusion Criteria:

   1. Age at time of consent 18-70 years of age

   2. Diagnosed with type 1 diabetes for at least 1 year. Diagnosis is based on
   investigator's clinical judgment.

   3. On pump therapy for ≥ 3 months prior to screening and familiar with pump therapy
   concepts such as basal and bolus insulin delivery, and carbohydrate counting.
   Participants using automated insulin delivery (AID) devices, including devices with
   predictive low glucose suspend (PLGS), in the 3 months prior to screening, will be
   excluded from participating.

   4. A1C 7.0-11.0% by point-of-care taken at screening visit

   5. Willing to use and obtain U-100 insulin: (either insulin aspart (Novolog, NovoRapid),
   or insulin lispro (Humalog, Admelog)), as the primary insulin treatment

   6. Must have a smartphone that supports the Dexcom app download and participants must be
   willing to use the app throughout the study

   7. Investigator has confidence that the participant can safely operate all study devices
   and can adhere to the protocol

   8. Willing to wear the system continuously throughout the study

   9. Willing and able to sign the Informed Consent Form (ICF)

Exclusion Criteria:

   1. Any medical condition, such as untreated malignancy, unstable cardiac disease,
   unstable or end-stage renal failure, eating disorders, or other conditions which in
   the opinion of the investigator, would put the participant at an unacceptable safety
   risk

   2. History of severe hypoglycemia in the past 6 months

   3. History of diabetic ketoacidosis (DKA) in the past 6 months, unrelated to an
   intercurrent illness or infusion set failure

   4. Blood disorder or dyscrasia within 3 months prior to screening, including use of
   hydroxyurea, which in the investigator's opinion could interfere with determination of
   HbA1C.

   5. Currently on systemic steroids or intends to receive systemic steroid treatment during
   study participation, including stable treatment for adrenal insufficiency. Inhaled,
   ophthalmic, topical, joint injection, and other locally applied steroids are allowed.

   6. Unable to tolerate adhesive tape or has any unresolved skin condition in the area of
   sensor or pump placement

   7. Use of non-insulin anti-hyperglycemic medication other than metformin, in the 12 weeks
   prior to the Baseline Visit. Participants taking metformin should remain on a steady
   dose during study participation.

   8. Pregnant or lactating, or is a woman of childbearing potential and not on acceptable
   form of birth control (acceptable forms of contraception include abstinence, barrier
   methods such as condoms, hormonal contraceptives, intrauterine device, surgical
   sterilization such as tubal ligation or hysterectomy, or vasectomized partner)

   9. Participation in another clinical study using an investigational drug or device within
   30-days or 5 half-lives (whichever is longer) prior to screening, or intends to
   participate in any other study during this study period

10. Unable to follow clinical protocol for the duration of the study or is otherwise
   deemed unacceptable to participate in the study per the investigator's clinical
   judgment

11. Participant is an employee of Insulet, an Investigator or Investigator's study team,
   or immediate family member of any of the aforementioned