Alexion’s global R&D organization is working to advance the most robust pipeline in the Company’s history. Our pipeline programs are highly focused and span several therapeutic areas including hematology, nephrology, transplant, neurology, metabolic disorders and inflammatory disorders. Today, we have programs underway with multiple highly innovative therapeutic candidates, including eculizumab, that have the potential to become first-in-class therapies for patients with severe and life-threatening disorders.

  • Preclinical
  • Early Clinical Development
  • Advanced Clinical Development
  • Registration Filings
  • Market

Soliris® (eculizumab)

Approved Indications

Paroxysmal Nocturnal Hemoglobinuria (PNH)


Soliris is approved for the treatment of PNH in nearly 50 countries, including the United States, European Union and Japan. PNH is an ultra-rare blood disorder in which chronic, uncontrolled activation of complement, a component of the normal immune system, results in hemolysis (destruction of the patient's red blood cells).


Atypical Hemolytic Uremic Syndrome (aHUS)


Soliris is approved for the treatment of aHUS in nearly 40 countries, including the United States, European Union and Japan. aHUS is a chronic, ultra-rare, and life-threatening disease in which a life-long and permanent genetic deficiency in one or more complement regulatory genes causes chronic uncontrolled complement activation, resulting in complement-mediated thrombotic microangiopathy (TMA), the formation of blood clots in small blood vessels throughout the body.


Investigational Indications — Transplant and Neurology

Antibody-mediated Rejection (AMR) — Living & Deceased Donor


Eculizumab is being investigated as a treatment for patients undergoing kidney transplant who are at elevated risk of AMR, a life-threatening condition characterized by the acute onset of kidney failure and rapid progression to destruction of the transplanted kidney.


Delayed Graft Function (DGF)


Eculizumab is being evaluated in DGF, a condition in which a transplanted kidney, known as a graft, does not initially function properly. As a result, patients must undergo dialysis for a period of time following the transplant surgery.


Relapsing Neuromyelitis Optica (NMO)


Eculizumab is being investigated as a treatment for relapsing NMO, a devastating, life-threatening, ultra-rare neurological disease that can lead to severe weakness, paralysis, respiratory failure, loss of bowel and bladder function, blindness and premature death.


Refractory Myasthenia Gravis (MG)


Eculizumab is being studied in refractory MG, a debilitating and sometimes life-threatening neurological disorder in which uncontrolled complement activation leads to destruction and inflammation at the neuromuscular junction, resulting in severe muscle weakness.


Soliris Lifecyle Management



Investigational Candidates - Metabolic Disorders

Asfotase Alfa

Hypophosphatasia (HPP)


Asfotase alfa is a highly innovative, late-stage biologic being developed for patients with hypophosphatasia (HPP). HPP is a chronic, progressive, potentially life-threatening, genetic, and ultra-rare metabolic disease characterized by defective bone mineralization that can lead to destruction and deformity of bones, profound muscle weakness, seizures, respiratory failure and premature death.


cPMP Replacement Therapy (ALXN1101)

Molybdenum Cofactor Deficiency (MoCD) Type A


cPMP (cyclic pyranopterin monophosphate) is an enzyme co-factor replacement therapy for the treatment of patients with molybdenum cofactor deficiency (MoCD) type A, a severe, life-threatening, ultra-rare, genetic metabolic disorder that causes catastrophic and irreversible neurologic damage within the first weeks of life.


Investigational Candidates - Inflammatory Disorders

ALXN1007 Anti-Inflammatory Antibody

Antiphospholipid Syndrome (APS)


ALXN1007 is a novel anti-inflammatory antibody designed to target severe and ultra-rare inflammatory disorders.


Research Portfolio

Messenger RNA (mRNA) Therapeutics


Alexion is partnering with Moderna Therapeutics on the discovery and development of messenger RNA Therapeutics™ to treat rare diseases.


Other Preclinical Candidates


Alexion’s Research & Development pipeline also includes several additional preclinical programs across various therapeutic areas.