And Along Came Tradjenta… Or, The Wacky World of Type 2 Drugs

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By AmyT May 27, 2011
The world of type 2 diabetes drugs is wacky indeed. While Amylin’s long-acting version of Byetta — called Bydureon and predicted by many experts to become a blockbuster — is still held up at FDA, the agency approved a new oral drug earlier this month that is reportedly unremarkable except in the lawsuit it has spurred.
The drug is called linagliptin, brand name Tradjenta, a new oral DPP-4 inhibitor from Eli Lilly and Boehringer that can be combined with other BG-lowering meds, especially metformin.

Image: b4tea.com
Upon its release, Amylin promptly filed a lawsuit against Eli Lilly, its partner in developing Bydureon, accusing Lilly of violating federal laws and engaging in anti-competitive practices because “Tradjenta would be a direct competitor for Byetta (exenatide), and Eli Lilly would be able to use the same marketing people on both drugs, giving it the ability to choose which drug is promoted better.”
Eli Lilly has denied the charges, stating that Tradjenta will not compete with Byetta, therefore the company “has committed no crime in allying itself with Boehringer Ingelheim.” But then yesterday, a U.S. District Court upheld a restraining order banning Lilly from proceeding with its plans to use the same sales force to sell both drugs.
According to David Kliff of Diabetic Investor, an industry-watcher who knows the in’s and out’s of the Diabetes Pharma World as well as anyone, “Tradjenta is basically the same drug as Januvia, with some very slight differences… (and) there is no compelling reason for a physician to prescribe Tradjenta over Januvia.” He also states that “the vast majority of A1C lowering (effect) comes when Januvia is used in combination with metformin; take away the metformin and you have a rather lackluster drug with a suspect safety profile.”
Just a moment there: Januvia competes with Byetta, so of course it stands to reason that Tradjenta will too.
Meanwhile, Januvia also competes with Victoza, another injectable GLP-1 drug from Novo Nordisk, and Onglyza, a once-daily DPP-4 inhibitor pill from Astra Zeneca.
This is confusing as all get-out, if you ask me.
Do the injectables really compete with the oral drugs? And why does it seem that most type 2s are prescribed multiple glucose-lowering medications?
I needed a refresher, so I looked up some of the terms once again and made myself some notes, which will hopefully be useful to you all scratching your heads at home as well:
* DPP-4 inhibitor drugs are taken orally. They lower blood sugar by inhibiting glucagon release, versus…
* GLP-1 receptor drugs (like Byetta), taken by injection. They work to lower your blood sugar in three ways: enhancing insulin secretion, suppressing glucgon release, and gastric emptying.
Who Owns What
• Januvia (Merck) – oral DPP-4, direct competitor to Byetta that is reportedly doing better in the market.
• Janumet (Merck) – a combo of oral drugs Januvia and metformin, designed to help patients cut down on pill-popping. There are other combo drugs in the works, too.
• Victoza (Novo Nordisk) – injectable GLP-1 drug designed to stimulate insulin secretion when hyperglycemia (high blood sugar) is present. Supposedly causes fewer/ less unpleasant side effects than competitors; much-discussed among patients. See our default user forum (721 comments and counting!)
• Onglyza (Astra Zeneca) – a once-daily tablet DPP-4 inhibitor, competes with Januvia; according to some, it’s like Januvia but worse.
• Bydureon (Amylin & Lilly) – that GLP-1 long-acting version of Byetta (Amylin) with the potential to be a blockbuster, although studies show it’s not as good as Victoza.
What’s Different About Tradjenta
It seems the only real differentiator here is the dosing — a single 5mg once-daily to remember for all patients, “regardless of kidney or liver impairment” (not the case with competing drugs).
This is so because Tradjenta, uniquely among DPP-4 drugs, is “not expressed through the kidney but rather through the bile and gut – 95% of it, anyway.”
Medical Marketing & Media reports that Tradjenta “has a tough climb ahead of it” because it’s coming out third-to-market in its drug class, behind “entrenched category leader” Januvia, which racks up billions in sales.
An “Ideal Diabetes Drug”?
Is there such thing as a single “ideal drug” for type 2 diabetes?
According to Kliff, the famous Dr. Anne Peters of the USC Clinical Diabetes Program recently made this statement:
“My ideal diabetes drug lowers blood glucose, helps reduce weight, improves cardiovascular risk factors, and preserves beta cells — and costs $4 a month.”
Kliff’s reaction?
“Take away the $4 per month cost and what Dr. Peters is describing is actually here today and called a GLP-1. Notice that nowhere in her comments does Dr. Peters mention anything about how this ideal drug would be administered (oral versus injection). … Although not ‘perfect,’ a GLP-1 also has additional benefits beyond lowering blood glucose, helping reduce weight, improving cardiovascular risk factors and preserving beta cells.”
He also states that “patients can actually see and feel a benefit from using (a GLP-1), something that does not happen with metformin or a DPP-4.”
Our Type 2 Friends out there: please share your experiences taking the orals versus injectables. Also, anyone involved in Tradjenta studies or tried this new drug yet?
 






The whole "Diabetes Care" industry is strangely perverted. I, an MD, find it shocking that no mention of the simple avoidance of sucrose and high fructose corn syrup, is mandated by the FDA ... the solution is so simple for Type II.

Someday, maybe by 2020, we will be looked upon as stone age sugar addicts. Google it.
 






The whole "Diabetes Care" industry is strangely perverted. I, an MD, find it shocking that no mention of the simple avoidance of sucrose and high fructose corn syrup, is mandated by the FDA ... the solution is so simple for Type II.

Someday, maybe by 2020, we will be looked upon as stone age sugar addicts. Google it.

I don't doubt that we (Americans) could be considered sugar addicts. However, your view that avoidance of sucrose and HF corn syrup is the solution for T2DM is stunningly simplistic--particularly if you are indeed an MD (which seems dubious). I don't want the government telling me what I can or can not eat. I would prefer to be responsible for my own food choices.
 






I don't doubt that we (Americans) could be considered sugar addicts. However, your view that avoidance of sucrose and HF corn syrup is the solution for T2DM is stunningly simplistic--particularly if you are indeed an MD (which seems dubious). I don't want the government telling me what I can or can not eat. I would prefer to be responsible for my own food choices.

as they say in my home country the proof is in the eating, ta ta
 






You're a Doctor,and I'm the Pope.....

Physicians know diabetes can be helped by weight and sugar control,but its not so simple for longer term diabetics.

Amylin has a strong case and should win.Anyone who saw how Juanuvia cut into Byetta sales look no further.
 






How about this.... By the time patients are diagnosed with type 2 diabetes about 60% already show signs of mild to moderate kidney impairment. Byetta would be a bad choice for this patient because of how Byetta is metabolized... Mainly through the kidney. BAD side affects! No wonder why so many patients stopped taking it!!! Tradjenta can be used where Byetta can't!!! You Amylin reps are always thinking about yourself. NEVER the patient. No wonder why physicians stopped prescribing it! Patients that shouldn't have been on it because of kidney impairment had a bad experience. Januvia was written because of the bad advice given by Amylin sales reps. That being, byetta is the best for ALL type 2s after metformin. That is where the growth came from, not because it "competes". Doctors wanted an alternative, Victoza wasn't out yet and the DPP-4 class in general has a low side affect profile. There is a reason why the CVM score for Amylin reps was the worst compared to other diabetes reps. From other companies! You Amylin reps can learn a lot through Value Based Selling. I can't tell you how many of my diabetes educators do not know the Amylin rep that calls on them and how you cherry pick your customers. Get out there and start caring about patients and customers!!!!!! I also seem to remember when Amylin was trying to get FDA approval for Symlin with basal insulin only (no mealtime insulin needed) that sounds like you were trying to be anti competitive with your Lilly partner !! Taking away some of our Humalog share! Did you see Lilly getting all pissy with you!
 






The whole "Diabetes Care" industry is strangely perverted. I, an MD, find it shocking that no mention of the simple avoidance of sucrose and high fructose corn syrup, is mandated by the FDA ... the solution is so simple for Type II.

Someday, maybe by 2020, we will be looked upon as stone age sugar addicts. Google it.

There is an excellent head-to-head, apple-to-apple study done at UCSF, where they studied the pro-anabolic (on the fat tissues) effect of fructose containing carbohydrates (HFCS, short chain maltodexrin, sucrose, fructose, D-Glucose (at several pH), and other sweetners.). It was found that fructose alone causes the whole glycolytic cycle to short change, producing huge amount of 2PEP that fails to enter the TCAC. Lactate formed goes to secondary metabolism, ending as glycerol and acetyl-coA..and so on...What was so interesting that there is not much difference btwn Fructose and glucose (I mean compositionally), yet fructose turned out to be "toxic" whereas glucose was not. The linkage appeared to be how the Glucokinase and PFK1/2 revv up. It is known that in obesity both GK-1 and PFK1/2 are elevated, and the promoter region for these enzymes seemed to be like "Chinese Power station spewing CO2", i.e. huge increase in RNA stabiliy and by someother means reverse hijacks the cellular machianry, as if, Tom Bodette say, "leave light on for you."
 
























There is an excellent head-to-head, apple-to-apple study done at UCSF, where they studied the pro-anabolic (on the fat tissues) effect of fructose containing carbohydrates (HFCS, short chain maltodexrin, sucrose, fructose, D-Glucose (at several pH), and other sweetners.). It was found that fructose alone causes the whole glycolytic cycle to short change, producing huge amount of 2PEP that fails to enter the TCAC. Lactate formed goes to secondary metabolism, ending as glycerol and acetyl-coA..and so on...What was so interesting that there is not much difference btwn Fructose and glucose (I mean compositionally), yet fructose turned out to be "toxic" whereas glucose was not. The linkage appeared to be how the Glucokinase and PFK1/2 revv up. It is known that in obesity both GK-1 and PFK1/2 are elevated, and the promoter region for these enzymes seemed to be like "Chinese Power station spewing CO2", i.e. huge increase in RNA stabiliy and by someother means reverse hijacks the cellular machianry, as if, Tom Bodette say, "leave light on for you."

Fascinating, just fascinating.
 






Meanwhile, a chain pharmacy in Omaha, Nebraska is advertising that they offer generic drugs for type II diabetes....a month's supply....AT NO CHARGE!!!!!! And it goes on, month after month after month.

Try competing with that. Try selling Tradjenta in Omaha if you like challenges.