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Type 2 DiabetesOctober 2019Summary reviewed August 2026

Starting Two Diabetes Drugs Together Cut Treatment Failure in Half vs. One Drug Alone

People newly diagnosed with type 2 diabetes did better when they started two drugs at once instead of the usual approach of starting with one pill. After five years, 44% failed on the two-drug combo compared to 62% on the single drug. Both approaches were safe.

What the trial was testing

The VERIFY enrolled 2,004 patients with type 2 diabetes. The study was sponsored by Novartis Pharmaceuticals and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was long-term safety (phase 4). Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

Starting two diabetes drugs together cut the risk of treatment failure in half over five years.

Lancet (London, England) · 2019 · NCT01528254

These findings — that starting two diabetes drugs together halved treatment failure vs. one drug alone over five years — were published in the Lancet (London, England) and represent the headline result of the study.

Researchers tracked outcomes across 2,004 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with type 2 diabetes, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

If you're newly diagnosed with type 2 diabetes, ask your doctor if starting two medications together makes sense for you. This approach kept blood sugar in range longer than the standard approach of starting with one drug and adding a second later. Both metformin and vildagliptin are FDA-approved for type 2 diabetes.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.