Clinical trials

24

Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

A Phase 1b/2 Study of CAR T Cell Therapy Targeting CD19 and BCMA in Participants With Relapsed or Refractory AL Amyloidosis.

Open-label Phase 1b/2 study with primary objective of this study is to evaluate the safety, tolerability and efficacy of AZD0120 in participants with light chain (AL) amyloidosis.

Participants needed: 91
Trial details
Phase: Phase 1, Phase 2Age: 18+Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jul 2, 2026Locations: 18
Eligibility criteria

Confirmed histopathological diagnosis of AL amyloidosis [+6]

Have any other form of amyloidosis other than AL amyloidosis [+11]

Status: Not yet recruiting

Efficacy, Safety, Pharmacokinetics, Pharmacodynamics, and Immunogenicity Study of Ravulizumab in Chinese Adults With Neuromyelitis Optica Spectrum Disorder (NMOSD)

The primary objective of this study is to confirm the efficacy, safety, pharmacokinetics (PK), pharmacodynamics (PD), and immunogenicity of ravulizumab in the treatment of Chinese adults with anti-aquaporin-4 (AQP4) antibody (Ab) + neuromyelitis optica spectrum disorder (NMOSD).

Participants needed: 21
Trial details
Phase: Phase 3Age: 18-130Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 18, 2026Locations: 5
Eligibility criteria

Diagnosis: NMOSD per 2015 international consensus criteria, and anti AQP4 antibo... [+14]

Status: Not yet recruiting

Efficacy and Safety of Ravulizumab in Chinese Adults Participants With Generalized Myasthenia Gravis (gMG)

The primary purpose of this study is to evaluate the efficacy, safety, pharmacokinetics, pharmacodynamics, and immunogenicity of ravulizumab in Chinese adult participants with Acetylcholine receptor (AChR) + Generalized Myasthenia Gravis (gMG).

Participants needed: 20
Trial details
Phase: Phase 3Age: 18-130Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 22, 2026Locations: 10
Eligibility criteria

Confirmed generalized MG: Diagnosis ≥6 months before screening, anti-AChR antibo... [+24]

Status: Recruiting

Study of ALXN1920 in Adult Participants With Primary Membranous Nephropathy (PMN)

The primary objective of this study is to evaluate the efficacy of ALXN1920 compared with placebo in participants with PMN who are at a high risk for disease progression using 24-hour urine protein creatinine ratio (UPCR).

Participants needed: 30
Trial details
Phase: Phase 2Age: 18-75Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 18, 2026Locations: 40
Eligibility criteria

Participants who have a documented diagnosis of PMN, established by positive ant... [+6]

Documented rapid deterioration of kidney function [+9]

Status: Recruiting

Double-blind, Randomized, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab Administered Intravenously in Adult Participants at High Risk of Delayed Graft Function After Kidney Transplantation

The primary objective of this study is to demonstrate the efficacy of ravulizumab vs placebo in reducing the severity of DGF as measured by time to freedom from dialysis in adult participants who are at high risk of DGF after undergoing transplant of deceased donor kidney.

Participants needed: 450
Trial details
Phase: Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 18, 2026Locations: 130
Eligibility criteria

≥ 18 years of age at the time of signing the informed consent [+3]

Is to receive a kidney from a donor with category I,II,IV and V Maastricht Class... [+1]

Status: Recruiting

Phase 2 Study of ALXN2030 in Patients With Antibody-Mediated Rejection After Kidney Transplantation

The primary objective of this study is to evaluate the efficacy of ALXN2030 compared with placebo on biopsy proven histologic resolution in participants with active or chronic active antibody-mediated rejection (AMR) at Week 52.

Participants needed: 45
Trial details
Phase: Phase 2Age: 18-75Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 18, 2026Locations: 55
Eligibility criteria

Kidney transplant received ≥ 6 months [+8]

TCMR, according to the Banff grade ≥ 1 [+8]

Status: Recruiting

Registry of Patients With AQP4+ NMOSD Treated With Alexion C5 Inhibitor Therapies

Long-term, multicenter, multinational, observational, registry of patients with AQP4+ NMOSD that is designed to collect data on clinical outcomes and safety in patients prescribed Alexion C5 inhibitor therapies (C5IT). The registry will also collect data on patient reported outcomes (PROs), quality of life (QoL), and targeted AQP4+ NMOSD therapies used to provide evidence on the real-world impact of ALXN-C5IT on patients with AQP4+ NMOSD.

Participants needed: 122
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 18, 2026Locations: 33Duration: 5 Years
Eligibility criteria

Participant is ≥ 18 years of age at the time of enrollment in the Registry. [+3]

Participants currently enrolled in an interventional clinical study for the trea...

Status: Recruiting

Safety and Efficacy of Tarperprumig in Adult Participants With Anti-Neutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis

The primary objective of this study is to evaluate the safety and tolerability of tarperprumig in participants with newly diagnosed or relapsing anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis.

Participants needed: 75
Trial details
Phase: Phase 2Age: 18-80Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 16, 2026Locations: 78
Eligibility criteria

Newly diagnosed or relapsing ANCA-associated vasculitis, GPA and MPA subtypes co... [+2]

Other systemic diseases that, in the judgment of the Investigator, constitute th... [+3]

Status: Recruiting

ALXN2350 in Adult Participants With BAG3-Associated Dilated Cardiomyopathy

This Phase 1/2 study is an open-label, dose finding and dose expansion study investigating the safety, tolerability, and efficacy of a single IV infusion of ALXN2350 in adult participants with BAG3 associated DCM.

Participants needed: 6
Trial details
Phase: Phase 1, Phase 2Age: 18-70Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 15, 2026Locations: 10
Eligibility criteria

Pathogenic or likely pathogenic mutation in BAG3 [+3]

Presence of antibodies to AAV9 [+2]

Status: Available

Danicopan Early Access Program

This is an EAP, designed to provide early access to danicopan for participants with PNH experiencing clinically significant EVH who have failed, not tolerated, or are unable to receive other approved treatments; in the Treating Physician's opinion, the participant is not eligible for or is not able to participate in an ongoing clinical trial of danicopan or a comparable treatment; and according to the Treating Physician, the benefit of danicopan treatment outweighs the potential risks.

Trial details
Age: 18+Biological sex: AllType: Expanded AccessSponsor: Alexion Pharmaceuticals, Inc.Updated: Jun 4, 2026Locations: 15
Eligibility criteria

Male or female, aged 18 years and older [+5]

Participants who are nursing or pregnant (or women who are planning to become pr... [+4]

Status: Recruiting

Post-Marketing Clinical Study of Ravulizumab in Participants With Clinical aHUS

The primary objective of this study is to assess the platelet count response to ravulizumab in participants clinically diagnosed as atypical hemolytic uremic syndrome (aHUS).

Participants needed: 20
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 20, 2026Locations: 12
Eligibility criteria

Body weight ≥20 kilograms (kg) [+13]

Participants with TTP, STEC-HUS, secondary TMA that is obviously unrelated to co... [+7]

Status: Recruiting

Study of Ultomiris® (Ravulizumab) Safety in Pregnancy

The primary objective of this study is to describe the frequency and characteristics of pregnancy outcomes and maternal complications among participants exposed to Ultomiris and to describe the frequency and characteristics of selected fetal/neonatal/infant outcomes in utero, at birth, and through 1 year of age after exposure in utero or via breastmilk.

Participants needed: 75
Trial details
Biological sex: FemaleType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 16, 2026Locations: 7Duration: 21 Months
Eligibility criteria

Female participant must have a medically confirmed qualifying pregnancy (prospec... [+6]

Participants who are unable to provide consent or assent (as locally appropriate...

Status: Recruiting

Safety, Tolerability, Pharmacokinetic, and Pharmacodynamic Study of ALXN2230 in Healthy Participants

The primary objective of this study is to evaluate the safety and tolerability of single subcutaneous (SC) doses of ALXN2230 in healthy participants.

Participants needed: 48
Trial details
Phase: Phase 1Age: 18-65Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 9, 2026Locations: 1
Eligibility criteria

Participants who are overtly healthy as determined by medical evaluation includi... [+4]

History or presence of cardiovascular, respiratory, hepatic, renal, gastrointest... [+11]

Status: Recruiting

A Study to Investigate OCS Tapering in Adult Participants With Generalized Myasthenia Gravis Treated With Ravulizumab

This is a prospective, multicenter single arm study designed to evaluate the effectiveness and safety of a predefined oral corticosteroids (OCS) tapering schedule to reduce OCS use in adult participants with acetylcholine receptor positive (AChR+) generalized myasthenia gravis (gMG) being treated with intravenous ravulizumab.

Participants needed: 75
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 9, 2026Locations: 12
Eligibility criteria

Aged greater than 18 years and male or female [+5]

Concurrent participation in an interventional clinical trial. [+4]

Status: Recruiting

ALXN2420 Versus Placebo in Combination With Somatostatin Analogs in Participants With Acromegaly

The primary objective of this study is to evaluate the efficacy of 15-week treatment with ALXN2420 versus placebo for decreasing insulin-like growth factor IGF-1 levels, when administered in combination with somatostatin analog (SSA) therapy to adult participants with acromegaly.

Participants needed: 60
Trial details
Phase: Phase 2Age: 18-80Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 7, 2026Locations: 45
Eligibility criteria

Documented diagnosis of acromegaly, that is, historically documented evidence of... [+4]

Had surgery for pituitary adenoma within the last 6 months before Day 1 or plann... [+15]

Status: Recruiting

PK, PD, Safety, and Efficacy Study of Gefurulimab in Pediatric Patients With AChR+ Generalized Myasthenia Gravis

The primary objective of this study is to assess the pharmacokinetics and pharmacodynamics of gefurulimab in pediatric participants with AChR+ gMG for the duration of the study.

Participants needed: 12
Trial details
Phase: Phase 3Age: 6-17Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Apr 1, 2026Locations: 13
Eligibility criteria

Participant must be 12 to < 18 years of age at the time of signing the informed... [+5]

History of thymectomy, or any other thymic surgery within 12 months prior to Scr... [+3]

Status: Recruiting

Study of Ravulizumab in Pediatric Participants With Primary IgAN

The primary objectives of this study are to characterize ravulizumab pharmacokinetics (PK) and pharmacodynamics (PD), and to evaluate safety and efficacy following ravulizumab IV dosing in pediatric participants with IgAN or IgAVN.

Participants needed: 24
Trial details
Phase: Phase 3Age: 2-18Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Mar 17, 2026Locations: 14
Eligibility criteria

Participant must be 2 to < 18 years of age at the time of signing the informed c... [+7]

Diagnosis of rapidly progressive glomerulonephritis [+13]

Status: Recruiting

Lysosomal Acid Lipase (LAL) Deficiency Registry

This is an observational, multi-center, international disease registry designed to collect longitudinal data and create a knowledge base that will be utilized to improve the care and treatment of patients with LAL Deficiency. Participation in the Registry by both physicians and patients is voluntary.

Participants needed: 300
Trial details
Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Mar 6, 2026Locations: 104Duration: 10 Years
Eligibility criteria

Not listed

Status: Recruiting

Registry of Participants With Generalized Myasthenia Gravis Treated With Alexion C5 Inhibition Therapies (C5ITs)

Long-term, multicenter, multinational, observational, registry of patients with gMG that is designed to collect data on clinical outcomes and safety in patients prescribed Alexion C5 inhibitor therapies (C5IT) such as eculizumab (Soliris®) and ravulizumab (Ultomiris®).

Participants needed: 500
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Feb 18, 2026Locations: 51Duration: 5 Years
Eligibility criteria

Participants with a diagnosis of gMG who are treated with Alexion C5IT at the ti... [+2]

Status: Recruiting

A Prospective Sub-Study of the Global Hypophosphatasia Registry

In this prospective observational sub-study, participants with pediatric-onset hypophosphatasia (HPP) (perinatal/infantile- or juvenile-onset) of any age will be followed for a minimum of 5 years at sites in the United States and potentially 1 or 2 other countries.

Participants needed: 30
Trial details
Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Feb 9, 2026Locations: 12
Eligibility criteria

Any age or sex with a confirmed diagnosis of pediatric-onset HPP (that is, first... [+4]

Currently participating in an Alexion-sponsored interventional clinical study. P...

Status: Recruiting

Early Ravulizumab Treatment Of Anti- AChR Antibody-Positive Generalized Myasthenia Gravis

The primary objective of the study is to evaluate the effectiveness of Ravulizumab in improving MG-ADL in an early-stage AChR+ gMG population.

Participants needed: 40
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Feb 5, 2026Locations: 23
Eligibility criteria

History of a positive serologic test for anti-AChR antibodies, and [+7]

Patient unable to understand and sign the informed consent [+10]

Status: Recruiting

Real-Life Clinical Efficacy of Acoramidis in Participants With ATTR-CM and Association With Cardiac Biomarkers

The purpose of this study is to confirm that the treatment with acoramidis prevents the deterioration of the ATTR-CM disease progression index and that these indexes are surrogate markers of disease progression.

Participants needed: 200
Trial details
Phase: Phase 4Age: 18-100Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Jan 7, 2026Locations: 16
Eligibility criteria

Naive participants: newly diagnosed with ATTR-CM and no prior treatment with dru... [+6]

Have confirmed diagnosis of AL amyloidosis [+7]

Status: Recruiting

Study of Danicopan as Add-on Treatment to Ravulizumab or Eculizumab in Pediatric Participants With PNH Who Have Clinically Significant Extravascular Hemolysis

The primary objective of this study is to evaluate efficacy of danicopan as add-on treatment to ravulizumab or eculizumab as assessed by hemoglobin (Hgb) change from Baseline at Week 12 in pediatric participants with paroxysmal nocturnal hemoglobinuria (PNH) and clinically significant extravascular hemolysis (CS-EVH).

Participants needed: 6
Trial details
Phase: Phase 3Age: 12-17Biological sex: AllType: InterventionalSponsor: Alexion Pharmaceuticals, Inc.Updated: Dec 23, 2025Locations: 4
Eligibility criteria

Confirmed diagnosis of PNH. [+4]

Platelet count < 30000/μL or there is a need for platelet transfusions. [+8]

Status: Recruiting

Atypical Hemolytic-Uremic Syndrome (aHUS) Registry

Post-marketing safety data on patients treated and untreated with eculizumab or ravulizumab.

Participants needed: 3,000
Trial details
Biological sex: AllType: ObservationalSponsor: Alexion Pharmaceuticals, Inc.Updated: Sep 16, 2025Locations: 141Duration: 5 Years
Eligibility criteria

Male or female patients of any age, including minors, who have been diagnosed wi... [+3]

Hemolytic Uremic Syndrome (HUS) only due to Shiga Toxin producing Escherichia co... [+1]