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    • 2 hours, 45 minutes ago
      ConnieT1D62 likes your comment at
      Do you currently take metformin?
      In the late 2010s, I began to become insulin resistant and started packing on a lot of weight. I believe using a pump facilitated this because of the abundance of insulin readily available. My doctor put me on metformin, then Jardiance, then Victoza. As a result, my insulin use went from 120-140 units per day to a minimum of 24, up to 40 depending on carb loads. I also lost 102 lbs. It may not be for everyone, but if you're starting to notice insulin resistance, it can be a good weapon to have.
    • 5 hours, 16 minutes ago
      Kristi Warmecke likes your comment at
      Do you currently take metformin?
      Wow!
    • 5 hours, 17 minutes ago
      Kristi Warmecke likes your comment at
      Do you currently take metformin?
      I've had T1D for 50 years. I started taking Metformin 9 months ago. I take full dose at bedtime to manage my morning glucose rise. It keeps the liver from releasing glucose. It has helped.
    • 8 hours, 18 minutes ago
      Lawrence S. likes your comment at
      Do you currently take metformin?
      In the late 2010s, I began to become insulin resistant and started packing on a lot of weight. I believe using a pump facilitated this because of the abundance of insulin readily available. My doctor put me on metformin, then Jardiance, then Victoza. As a result, my insulin use went from 120-140 units per day to a minimum of 24, up to 40 depending on carb loads. I also lost 102 lbs. It may not be for everyone, but if you're starting to notice insulin resistance, it can be a good weapon to have.
    • 8 hours, 19 minutes ago
      Lawrence S. likes your comment at
      Do you currently take metformin?
      I took it for four years when I was diagnosed with T2. After four years of not being able to control my bs I asked my endocrinologist if I could go on insulin and he said yes and the T2 drugs stopped.
    • 8 hours, 21 minutes ago
      Gerald Oefelein likes your comment at
      Do you currently take metformin?
      Other I took Metformim for 3 months when I was first incorrectly diagnosed with T2. I am very sensitive to insulin and don’t need it yet.
    • 8 hours, 21 minutes ago
      Gerald Oefelein likes your comment at
      Do you currently take metformin?
      I took it for four years when I was diagnosed with T2. After four years of not being able to control my bs I asked my endocrinologist if I could go on insulin and he said yes and the T2 drugs stopped.
    • 8 hours, 21 minutes ago
      Gerald Oefelein likes your comment at
      Do you currently take metformin?
      In the late 2010s, I began to become insulin resistant and started packing on a lot of weight. I believe using a pump facilitated this because of the abundance of insulin readily available. My doctor put me on metformin, then Jardiance, then Victoza. As a result, my insulin use went from 120-140 units per day to a minimum of 24, up to 40 depending on carb loads. I also lost 102 lbs. It may not be for everyone, but if you're starting to notice insulin resistance, it can be a good weapon to have.
    • 17 hours, 39 minutes ago
      René Wagner likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      I hate formulary changes mid year. They should not be allowed!
    • 17 hours, 40 minutes ago
      René Wagner likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      I will be possibly switching from Humalog to Novalog next year. There is NO Medicare Part D plan in my county that now covers Humalog. Complicated by the fact that I use a Humalog specific Smart Pen, it will be one more hassle in T1 world. My endo will submit a formulary exception request next year. My hoarded supply of cartridges will carry me through while waiting for the response 🤞🏻I cannot believe that this is the broken system that we have to settle for in the richest country in the world.
    • 1 day, 2 hours ago
      NANCY NECIA likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      My doctor switched me without telling me from Humalog to novolog and told me it was due to insurance. I’m on Medicare and I never saw anything that said that was necessary. They call me periodically to see how I’m doing and I told them I didn’t appreciate being switched without being told. I thought initially it was a mistake when I picked it up at the pharmacy but they said that’s what the doctor ordered. Then the next visit, he told me all my issues with insulin switching and preauthorization holdups was my fault basically because he says “I have the wrong insurance”. Like I’m going to NOT use Medicare. My opinion? I think I have the wrong doctor, but it’s a hassle to switch.
    • 1 day, 2 hours ago
      NANCY NECIA likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      Not this year, but in 2026, I need to switch from Humalog to Novolog.
    • 1 day, 5 hours ago
      mojoseje likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      NEVER accerptable or appropriate. Nobody's healthcare should ever be determined by a third party's profit margin(s) to determine what we are forced to take.
    • 1 day, 7 hours ago
      Phyllis Biederman likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      My doctor switched me without telling me from Humalog to novolog and told me it was due to insurance. I’m on Medicare and I never saw anything that said that was necessary. They call me periodically to see how I’m doing and I told them I didn’t appreciate being switched without being told. I thought initially it was a mistake when I picked it up at the pharmacy but they said that’s what the doctor ordered. Then the next visit, he told me all my issues with insulin switching and preauthorization holdups was my fault basically because he says “I have the wrong insurance”. Like I’m going to NOT use Medicare. My opinion? I think I have the wrong doctor, but it’s a hassle to switch.
    • 1 day, 7 hours ago
      Lawrence S. likes your comment at
      Do you have Glucagon on hand that is not expired? If not, please share why in the comments.
      Insurance won't cover and it was several hundred dollars.
    • 1 day, 7 hours ago
      Marty likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      Had to, no. But Medicare is adding coverage for FIASP in '26 so it will be "bye, bye, bye, bye, bye" to Lyumjev!
    • 1 day, 8 hours ago
      Gerald Oefelein likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      Had to, no. But Medicare is adding coverage for FIASP in '26 so it will be "bye, bye, bye, bye, bye" to Lyumjev!
    • 1 day, 8 hours ago
      Scott Rudolph likes your comment at
      Have you had to switch diabetes medications in the past year due to health insurance changes?
      Had to, no. But Medicare is adding coverage for FIASP in '26 so it will be "bye, bye, bye, bye, bye" to Lyumjev!
    • 2 days, 5 hours ago
      eherban1 likes your comment at
      Multiple daily injections (MDI) users: Do you use an app or other device to track your insulin dosing? Share the tools you use in the comments below!
      I use InPen and it's great. Except they aren't keeping up with iOS so you now have to unlock your phone and open the app to check IOB instead of simply looking at the home screen. You can tell when app developers aren't users, otherwise they'd know how much of a pain this is when you check 50 times a day
    • 2 days, 6 hours ago
      Trish Bowers likes your comment at
      Do you have Glucagon on hand that is not expired? If not, please share why in the comments.
      Insurance won't cover and it was several hundred dollars.
    • 2 days, 6 hours ago
      Trish Bowers likes your comment at
      Do you have Glucagon on hand that is not expired? If not, please share why in the comments.
      Glucagon is $425 for me on Medicare. It is cheaper to get an ambulance! I have an expired one that will work if I ever need it, but I won't.
    • 2 days, 6 hours ago
      Trish Bowers likes your comment at
      Do you have Glucagon on hand that is not expired? If not, please share why in the comments.
      No. During the past century I threw out many glucagon doses about 5 years after each had expired - having never used a single glucagon dose.. This century, two dose kits were disposed of and never used. At this point, in my opinion, with modern tools for accurately monitoring one's body glucose levels, AND common awareness of how one is feeling, severe low BGL can be easily avoided thus not needing "emergency' glucagon. NOTE WELL!!! what I wrote in the last sentence, does NOT apply to the very young, and some newly diagnosed who have not yet mastered insulin dosing and who have not yet been accustomed to recognizing low or quickly dropping BGL.
    • 2 days, 6 hours ago
      Trish Bowers likes your comment at
      Do you have Glucagon on hand that is not expired? If not, please share why in the comments.
      I do because it Costc me over $300 to replace it. Too expensive.
    • 2 days, 7 hours ago
      John Barbuto likes your comment at
      Multiple daily injections (MDI) users: Do you use an app or other device to track your insulin dosing? Share the tools you use in the comments below!
      Medicare has added FIASP for 2026! Besides the great news of being able to use this once again, it is one of the few fast acting insulins that works with the inPen. I am considering doing that in the new year
    • 2 days, 7 hours ago
      John Barbuto likes your comment at
      Multiple daily injections (MDI) users: Do you use an app or other device to track your insulin dosing? Share the tools you use in the comments below!
      Been using fiasp for 2 years (in the UK) and it's significantly better than novorapid. Would highly recommend to everyone, especially if you find your insulin a bit slow to act.
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    If you use an automated insulin delivery system (e.g., Tandem with Control-IQ, Omnipod 5, Medtronic pumps with Auto Mode, etc.), how did your A1c change in the first 3 months of use?

    Home > LC Polls > If you use an automated insulin delivery system (e.g., Tandem with Control-IQ, Omnipod 5, Medtronic pumps with Auto Mode, etc.), how did your A1c change in the first 3 months of use?
    Previous

    Which of these symptoms of hypoglycemia do you frequently experience during a low? Please select all that apply.

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    How useful is the time in range measurement to you as a tool for assessing your T1D management and making changes to your routine?

    Sarah Howard

    Sarah Howard has worked in the diabetes research field ever since she was diagnosed with T1D while in college in May 2013. Since then, she has worked for various diabetes organizations, focusing on research, advocacy, and community-building efforts for people with T1D and their loved ones. Sarah is currently the Senior Marketing Manager at T1D Exchange.

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    22 Comments

    1. Ahh Life

      A1c changed not a whit. But the white-knuckle rides seem to have lessened.

      5
      3 years ago Log in to Reply
    2. George Lovelace

      Control IQ Sleep Mode 24/7, A1c down from 6.5 to 5.4, Hypos almost non-existent

      2
      3 years ago Log in to Reply
    3. Ken Raiche

      My main reason for going automated insulin delivery route was twofold. Preventing my lows and flexibility of basal rates. That said haven’t had any severe reactions in over 7 years……

      1
      3 years ago Log in to Reply
    4. TEH

      I checked IDK. I only started the first week in Feb. First 3 weeks were rocky, bit the last few weeks have been better.

      3 years ago Log in to Reply
      1. TEH

        Started T:slim and dexcom 6

        3 years ago Log in to Reply
    5. Eve Rabbiner

      Not using automated system now. Used Medtronic’s a while ago and had much higher a1c’s than before or after.

      3 years ago Log in to Reply
    6. MARIE

      Checked “N/A Do not use…” Having been warned by endo that A1C would rise – and that if you try it, you can’t change your mind and go back – stuck with Basel IQ to control lows and did not ‘upgrade’ to Control IQ.

      3 years ago Log in to Reply
    7. Debra Nance

      I have not had a recent a1c tan. Will be next month to see the difference, if any.

      3 years ago Log in to Reply
    8. Lynn Smith

      I answered wrong. I selected didn’t change, but I should have selected NA. I am on the Omnipod 5, but I’m using the manual mode. Too many problems with the automated mode.

      3 years ago Log in to Reply
    9. Becky Hertz

      I currently do not use an aid system, but wouldn’t a better question be about TIR with them? Granted, people can dictate their high and low limits but isn’t T1D Management moving away from A1c and toward TIR?

      1
      3 years ago Log in to Reply
    10. Janis Senungetuk

      My A1c increased, but I it wasn’t a significant increase and I don’t think using the Control-IQ app was the only reason. Over the past five years, on MDI and two years of Animas pump use, my endo consistently stressed that my A1c at 6 or slightly under was too low and my glucose management was too stringent. She set my A1c target at 7 and when I started using the Tandem pump, changed my basal rates. I’m no longer comfortable doing the math and just let Control IQ do it’s thing. My TIR is 90%.

      1
      3 years ago Log in to Reply
      1. William Bennett

        > my endo consistently stressed that my A1c at 6 or slightly under was too low and my glucose management was too stringent. She set my A1c target at 7

        Yeah, that’s old-school. I used to get yelled at for it too, but it’s based on pre-CGM concerns. A1C is an ***average*** and they used to figure an A1C in the 6.0 range meant lots of hypos. It was just a surmise because you had no data for what was going on between finger-sticks, particularly overnight, so that was just the protocol. “Time in Range” is only a thing at all because of CGMs, and it’s not only more useful information but also the allows A1C to be ground-tested against realtime, 24/7 data. So your endo should be able to look at your CGM history, see you’re not crashing low all the time, you’re fine at 5.8 or whatever, so keep up the good work. If you don’t actually have a CGM (not everybody does) that’s one thing, but if you do, saying “we don’t like to see you below 7.0” is really just a hangover from the pre-CGM days.

        1
        3 years ago Log in to Reply
    11. PamK

      I answered that I do not use automated delivery, which is true now. Here is why: when I tried Control IQ, my A1C increased a lot – – “more than 2%.” I stopped using it because it is also set to keep my blood sugar higher than I want it. Hence, the higher A1C.

      1
      3 years ago Log in to Reply
    12. Karen Newe

      Just to be clear, percent and “percentage point” are different measures. When you say 1% you mean 1 percentage point (1% point). I am sure the answers were read as percentage-point.

      3 years ago Log in to Reply
    13. Dave Akers

      Ive actually done better w/o one of these systems. We need to come to accept the Achilles heal in theses systems is the liquid hexameric Insulin you have preplan before all meals.
      Inhaled insulin (monomeric) and new gen basals are amazing!!! Anyone in this group can do it.
      I did well on. My pump and Loved it! Buts that’s only because there were no better options 10yrs ago.
      New insulins Are SOOO awesome! I DO NOT miss wearing a pump!

      3 years ago Log in to Reply
    14. Sue Herflicker

      I wasn’t on shots too long before I started on my pump. So I had nothing to compare it to.

      3 years ago Log in to Reply
    15. Rex Franklin

      My A1c went from 7.3 t o 5.8

      2
      3 years ago Log in to Reply
    16. Mark Schweim

      I don’t remember that my A1c changed at all, but I was maintaining my A1c in the 6.5 to 5.2% range for the previous decade. I think maintaining my A1c range became slightly easier after switching to Tandem CIQ, but my actual A1c readings didn’t change at all.

      3 years ago Log in to Reply
    17. Lawrence S.

      My A1C’s went up slightly for about the first six months, then, went back down. For years, I had run A1C’s between 5.5 and 5.9. When I started Control IQ, my A1C’s were 6.1, then 6.0. Finally, after a few more months, I got below 6.0 and have stayed 5.8-5.9. The best result has been far less nighttime lows.

      1
      3 years ago Log in to Reply
    18. Steven Gill

      Clicked didn’t change but due to stress of work (beating up fire damaged or flooded houses) would drop seriously low and the CGM charted it. Rather than instructing how to correctly use the “active mode,” (go to that setting 25 minutes early so the effect of the lower basal is already acting rather than reacting) the doc just changed settings (sensitivity). My a1C went up consistently because things I had to do to recover.

      The last year “planned” and went into the active mode earlier, my a1C dropped from the doc’s comfortable a1C of 7.2-7.3 to 6.0. Too bad too many docs want to make medical corrections rather than educational.

      Sooo… without the physician’s help dropped from the original 6.7 to 6.0 (and the last pumping was 5.9, on pens looking lower by other sensible steps not taught).

      3 years ago Log in to Reply
    19. Jneticdiabetic

      After starting Tandem Control -IQ my A1c went down a smidge (0.3-0.5%). Biggest benefit was less time on the hypo range and the blessed sleep mode keeping me in range overnight.

      3 years ago Log in to Reply
    20. T1D4LongTime

      A1C increased from Medtronic to Tandem because of ControliQ. I didn’t have as many lows, so the A1C (which isn’t an accurate measure of control anyway) rose from 6.3 to 6.5. On Medtronic, I was going low, correction eating. I went on a pump so long ago (23 yrs ago), so I don’t recall if going on a pump made a big difference in the A1C. My BGs vary a lot since I’m a brittle diabetic so my A1C lookedc great, but control was not great.

      3 years ago Log in to Reply

    If you use an automated insulin delivery system (e.g., Tandem with Control-IQ, Omnipod 5, Medtronic pumps with Auto Mode, etc.), how did your A1c change in the first 3 months of use? Cancel reply

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