Pyruvate kinase activator

Aqvesme (mitapivat)

An approved treatment for Thalassemia (alpha and beta).

FDA Approved (2025)by Agios Pharmaceuticals
Preclinical
Phase 1
Phase 2
Phase 3
Approved
2025
Drug facts

The same compound appears under different names depending on the context. Here is how to identify Mitapivat wherever you encounter it, plus the key facts at a glance.

Generic name
Mitapivat
Brand name
Aqvesme
Development code
AG-348
Drug class
Pyruvate kinase activator
Manufacturer
Agios Pharmaceuticals
How it's taken
The recommended dose for thalassemia is 100 mg by mouth twice daily, with or without food.

The first oral pill that treats anemia in adults with alpha- or beta-thalassemia by boosting energy production inside red blood cells. By activating a key enzyme called pyruvate kinase, it helps red blood cells survive longer and function better, raising hemoglobin levels without transfusions.

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Where Mitapivat fits

First oral disease-modifying therapy for thalassemia that works by activating pyruvate kinase to improve red blood cell metabolism. An alternative approach to managing anemia alongside or instead of transfusions.

How Mitapivat works

In beta-thalassemia, red blood cells are energy-starved because they can't produce hemoglobin properly. Mitapivat activates pyruvate kinase, the enzyme responsible for the final step of energy production in red blood cells.

By turning up this enzyme's activity, it increases ATP (the cell's energy currency) inside each red blood cell. With more energy, the red blood cells last longer in the bloodstream instead of breaking apart prematurely, which raises hemoglobin levels and reduces anemia symptoms.

Mechanism: First-in-class oral allosteric activator of pyruvate kinase-R (PKR) that increases ATP production in red blood cells to reduce hemolysis

Side effects and safety

What patients report

Aqvesme has a boxed warning for serious liver injury (hepatocellular injury). In the thalassemia trials, 5 patients had liver injury within the first 6 months and 2 needed hospital care; it improved after the drug was stopped. Liver tests are required before starting, every 4 weeks for 24 weeks, and then as needed. People with cirrhosis should not take it. Report loss of appetite, nausea, pain in the upper right belly, vomiting, yellow skin or eyes, or dark urine. Because of this risk, Aqvesme is only available through the AQVESME REMS program. The most common side effects were headache and insomnia.

This is not a complete list of side effects. Talk to your doctor or pharmacist about what to expect and when to seek medical attention.

Taking Mitapivat

The recommended dose for thalassemia is 100 mg by mouth twice daily, with or without food. Swallow tablets whole; do not split, crush, chew, or dissolve them. Liver tests are needed before the first dose, every 4 weeks for the first 24 weeks, and then as your doctor decides. Aqvesme is only available through the AQVESME REMS program.

Availability and cost

No generic available

Only available as the brand-name product.

Why it costs what it costs

First-in-class oral pyruvate kinase activator targeting the underlying red blood cell metabolic defect. Novel mechanism of action with orphan drug pricing in a rare disease.

Help paying for Aqvesme

Pick your insurance to see which help fits. Drugmaker copay cards can't be used with Medicare, Medicaid or TRICARE; charity funds are the usual route there.

Your insurance
From the drugmaker
Aqvesme (Mitapivat)
myAgios Patient Support Services
  • Copay help

    The AQVESME Copay Program lowers costs for eligible commercially insured patients to $0 per prescription, regardless of income. Not for Medicare, Medicaid, TRICARE or retiree plans.

    For: private insurance · source
  • Bridge or quick-start supply

    Coverage Interruption Program for people whose insurance coverage is interrupted. People with government insurance are not eligible.

    For: private insurance · source
  • Other support

    Patient Assistance Program for people who are uninsured or whose insurance (government or commercial) does not cover AQVESME.

    For: private insurance, Medicare, Medicaid, TRICARE, no insurance · source
  • Insurance and case manager help

    A Patient Support Manager reviews your insurance, helps fill your prescription and works with your doctor.

    For: private insurance, Medicare, Medicaid, TRICARE, no insurance, underinsured · source

Good to know: The myAgios page does not state income limits or whether the Patient Assistance Program is free medicine; call myAgios for details. Government-insured patients may be referred to independent foundations.

Checked on the drugmaker's official pages on September 24, 2026. Programs change; confirm with the program before you rely on it.
Charity funds for Thalassemia (alpha and beta)
  • From a charity · Cooley's Anemia Foundation
    Support for Significant Travel to Treatment Centers fund
    Apply directly

    Pays for: Travel to a major thalassemia treatment center for comprehensive care, up to $500 per year.

    The foundation says: “Status not shown on page”
Status as each foundation showed it on October 5, 2026.

More ways to get help paying for treatment →

Clinical trial results

The ENERGIZE Phase 3 trial enrolled 194 patients with non-transfusion-dependent alpha or beta-thalassemia. 42% of patients on mitapivat achieved a hemoglobin increase of at least 1.0 g/dL sustained over weeks 12-24, compared to just 2% on placebo.

Development history

Developed by Agios Pharmaceuticals, mitapivat was first approved in February 2022 as Pyrukynd for pyruvate kinase deficiency. The thalassemia indication was approved December 23, 2025 under the brand name Aqvesme, expanding its use to a much larger patient population. It represents the first oral disease-modifying therapy for thalassemia.

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Common questions about Mitapivat

▸What is Mitapivat (Aqvesme)?

The first oral pill that treats anemia in adults with alpha- or beta-thalassemia by boosting energy production inside red blood cells. By activating a key enzyme called pyruvate kinase, it helps red blood cells survive longer and function better, raising hemoglobin levels without transfusions.

▸How does Mitapivat work?

In beta-thalassemia, red blood cells are energy-starved because they can't produce hemoglobin properly. Mitapivat activates pyruvate kinase, the enzyme responsible for the final step of energy production in red blood cells.

By turning up this enzyme's activity, it increases ATP (the cell's energy currency) inside each red blood cell. With more energy, the red blood cells last longer in the bloodstream instead of breaking apart prematurely, which raises hemoglobin levels and reduces anemia symptoms.

▸What are the side effects of Mitapivat?

Aqvesme has a boxed warning for serious liver injury (hepatocellular injury). In the thalassemia trials, 5 patients had liver injury within the first 6 months and 2 needed hospital care; it improved after the drug was stopped. Liver tests are required before starting, every 4 weeks for 24 weeks, and then as needed. People with cirrhosis should not take it. Report loss of appetite, nausea, pain in the upper right belly, vomiting, yellow skin or eyes, or dark urine. Because of this risk, Aqvesme is only available through the AQVESME REMS program. The most common side effects were headache and insomnia.

▸How is Mitapivat taken?

The recommended dose for thalassemia is 100 mg by mouth twice daily, with or without food. Swallow tablets whole; do not split, crush, chew, or dissolve them. Liver tests are needed before the first dose, every 4 weeks for the first 24 weeks, and then as your doctor decides. Aqvesme is only available through the AQVESME REMS program.

▸Is Mitapivat FDA approved?

Yes, Mitapivat (Aqvesme) is FDA approved (2025) for the treatment of Thalassemia (alpha and beta).

▸How does mitapivat work differently from other thalassemia treatments?

Mitapivat is the first oral disease-modifying therapy for thalassemia. Rather than replacing missing hemoglobin or providing blood transfusions, it activates pyruvate kinase to boost energy production inside red blood cells, helping them survive longer and reducing anemia from within.

▸What is the AQVESME REMS program?

Due to the risk of liver enzyme elevations, mitapivat is only available through the AQVESME REMS (Risk Evaluation and Mitigation Strategy) program. This requires liver function monitoring before treatment, every 4 weeks for the first 24 weeks, and periodically thereafter.

▸Was mitapivat previously approved for another condition?

Yes. Mitapivat was first approved in February 2022 under the brand name Pyrukynd for pyruvate kinase deficiency, a rare inherited anemia. The thalassemia indication under the brand name Aqvesme was approved in December 2025, expanding its use to a much larger patient population.

▸What did the ENERGIZE trial show?

The ENERGIZE Phase 3 trial enrolled 194 patients with non-transfusion-dependent alpha or beta-thalassemia. 42% of patients on mitapivat achieved a hemoglobin increase of at least 1.0 g/dL sustained over weeks 12-24, compared to just 2% on placebo.

▸How is mitapivat dosed?

For thalassemia, Aqvesme is taken as 100 mg by mouth twice daily, with or without food. Tablets should be swallowed whole. (The lower, step-up doses of 5, 20 and 50 mg apply to Pyrukynd for pyruvate kinase deficiency, not to Aqvesme.)

▸Can mitapivat be combined with other thalassemia treatments?

Mitapivat can potentially be combined with other therapies, though clinical trial data primarily studied it as monotherapy. Its unique oral mechanism of action complements existing approaches like luspatercept or transfusion support. Discuss combination strategies with your hematologist.

▸Does mitapivat work for alpha-thalassemia as well as beta-thalassemia?

Yes. The ENERGIZE trial included patients with both non-transfusion-dependent alpha and beta-thalassemia, and the drug showed benefit across both subtypes. This is significant because most thalassemia therapies are studied primarily in beta-thalassemia.

▸Is mitapivat approved for sickle cell disease?

Not yet. Agios filed for accelerated approval in sickle cell disease, and the FDA granted priority review with a decision date of November 1, 2026[2]. In the RISE UP Phase 3 trial of 207 people aged 16 and older, 40.6% on mitapivat had a hemoglobin response compared with 2.9% on placebo, but pain crises, 2.62 a year on mitapivat versus 3.05 on placebo, were not significantly reduced[1].

Sources and references

Every factual claim on this page is drawn from the public sources listed below. Click any reference to open the original document.

  1. Agios Pharmaceuticals · 2025-11-19. Agios Announces Topline Results from RISE UP Phase 3 Trial of Mitapivat in Sickle Cell Disease. https://investor.agios.com/news-releases/news-release-details/agios-announces-topline-results-rise-phase-3-trial-mitapivat
  2. Agios Pharmaceuticals · 2026-07-07. U.S. FDA Grants Priority Review to Agios' sNDA for Mitapivat in Sickle Cell Disease. https://investor.agios.com/news-releases/news-release-details/us-fda-grants-priority-review-agios-snda-mitapivat-sickle-cell

This page is for informational purposes only and does not constitute medical advice. Drug information is sourced from public databases and peer-reviewed literature and may not reflect the most recent updates. Always discuss treatment options with your healthcare provider. Last reviewed: October 2026.

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