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Systemic Lupus ErythematosusASTERNCT05637112

A Treatment Effectiveness Study Among SLE Patients Receiving Anifrolumab in Routine Clinical Practice.

An observational study of Systemic Lupus Erythematosus, run by AstraZeneca at 74 sites in 9 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

Anifrolumab Study of Treatment Effectiveness in the Real World (ASTER) study will collect real world data to obtain a good understanding of the (sustained) clinical effect and patient quality of life outcomes among diagnosed SLE patients who initiate anifrolumab treatment. Read more about this study

Who is it for?
Ages 18 to 130 years
Conditions the study is for
Systemic Lupus Erythematosus
What is being tested?
None (Observational study)
How many people
551 participants
Where
74 sitesin 9 countries
Study dates
27 Feb 2023to 30 Dec 2030
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 130 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: All patients aged ≥18 years diagnosed with SLE who initiate anifrolumab as prescribed by their healthcare provider (HCP) per the approved country-specific label and are treated at the study sites will be eligible for inclusion.

Who may be able to join

  • Fulfilled the 2019 EULAR (European League Against Rheumatism)/ACR (American College of Rheumatology) criteria for SLE at the time of study entry.
  • Prescribed anifrolumab for their SLE treatment for the first time, according to approved country-specific label.
  • The Physician's decision to prescribe anifrolumab must occur prior to any study-related discussion.
  • In countries where prescription reimbursements are authorised on a case-by-case basis, authorisation (ie, patient access to treatment) will be required for study entry.

Who cannot join

  • Currently participating in an anifrolumab early access/compassionate use program or an interventional clinical trial with an investigational product.
  • Any previous exposure to anifrolumab (including as part of a clinical trial or early access programme).
  • Documented diagnosis of severe or rapidly progressive Class III or IV glomerulonephritis requiring induction therapy (mycophenolate mofetil [MMF]/cyclophosphamide [CYC] + high dose steroids), isolated Class V lupus nephritis (in absence of other SLE manifestations, ie. skin/joint involvement), or active severe or unstable neuropsychiatric lupus.
  • Any other condition which the investigator deems to limit a patient's ability to understand the informed consent.

Trial locations and contacts

74 sites in 9 countries.

74 sites in 9 countries

France18 sites
  • Research Site

    Bordeaux, Gironde, 33076

  • Research Site

    Bouches-du-Rh Ne, Lyon, 69003

  • Research Site

    Clermont-Ferrand, Auvergne-Rh ne-Alpes, 63000

  • Research Site

    Dijon, C te-d'Or, 21079

  • Research Site

    Finist Re, Brest Cedex, 29609

  • Research Site

    FORT de France Cedex, Martinique, 97261

  • Research Site

    Grenoble, Is Re, 38043

  • Research Site

    Lille, Nord, 59037

  • Research Site

    Nantes, Loire-Atlantique, 44093

  • Research Site

    Nice, Alpes-Maritimes, 6000

  • Research Site

    Paris, 14033

  • Research Site

    Paris, 75013

  • Research Site

    Paris, 75014

  • Research Site

    Paris, 75020

  • Research Site

    Paris, 75475

  • Research Site

    Saint-Denis, La R Union, 97405

  • Research Site

    Seine-Maritime, Rouen, 76230

  • Research Site

    Strasbourg, Bas-Rhin, 67098

Other trials in France

Italy16 sites
  • Research Site

    Ancona, 60126

  • Research Site

    Bari, 70124

  • Research Site

    Brescia, Lombardy, 25100

  • Research Site

    Cagliari, Sardinia, 9042

  • Research Site

    Cona, Emilia-Romagna, 44124

  • Research Site

    Florence, 50134

  • Research Site

    Milan, Lombardy, 20122

  • Research Site

    Milan, 20122

  • Research Site

    Milan, 20132

  • Research Site

    Naples, Campania, 80131

  • Research Site

    Pisa, 56126

  • Research Site

    Roma, 161

  • Research Site

    Roma, 168

  • Research Site

    Rome, Lazio, 149

  • Research Site

    Turin, Piedmont, 10126

  • Research Site

    Udine, Friuli Venezia Giulia, 33100

Other trials in Italy

Germany13 sites
  • Research Site

    Bad Bramstedt, Free and Hanseatic City of Hamburg, 24576

  • Research Site

    Berlin, 10117

  • Research Site

    Cologne, North Rhine-Westphalia, 51149

  • Research Site

    D Sseldorf, North Rhine-Westphalia, 40225

  • Research Site

    Erlangen, Bavaria, 91054

  • Research Site

    Greifswald, Mecklenburg-Vorpommern, 17493

  • Research Site

    Greifwald, Vorpommern-Greifswald, 17489

  • Research Site

    Heidelberg, Baden-W Rttemberg, 69120

  • Research Site

    Heidelberg, Baden-Wurttemberg, 69120

  • Research Site

    Herne, North Rhine-Westphalia, 44649

  • Research Site

    Magdeburg, Saxony-Anhalt, 39104

  • Research Site

    Mainz A. Rhein, Rhineland-Palatinate, 55131

  • Research Site

    Schleswig-Holstein, L Beck, 23562

Other trials in Germany

Israel9 sites
  • Research Site

    Afula, Northern District, 18101

  • Research Site

    Haifa, Haifa District, 3109601

  • Research Site

    Haifa, Haifa District, 3436212

  • Research Site

    Jerusalem, Jerusalem, 91120

  • Research Site

    Kfar Saba, Central District, 4428164

  • Research Site

    Ramat Gan, Tel Aviv, 52621

  • Research Site

    Tel Aviv, Tel Aviv, 6423906

  • Research Site

    Tel Hashomer, Central District, 5211401

  • Research Site

    Tiberias, Galilee, 15208

Other trials in Israel

Canada8 sites
  • Research Site

    Calgary, Alberta, T2N 4N1

  • Research Site

    Hamilton, Ontario, L8N 3Z5

  • Research Site

    Orillia, Ontario, L3V 1T5

  • Research Site

    Rimouski, Quebec, G5L 5T1

  • Research Site

    Sherbrooke, Quebec, J1G 2E8

  • Research Site

    Ste-Foy, Quebec, G1V 4G2

  • Research Site

    Toronto, Ontario, M5T 2S9

  • Research Site

    Winnipeg, Manitoba, RR149

Other trials in Canada

Austria3 sites
  • Research Site

    Innsbruck, Tyrol, 6020

  • Research Site

    Linz, Upper Austria, 4020

  • Research Site

    Vienna, 1180

Other trials in Austria

United Arab Emirates3 sites
  • Research Site

    Abu Dhabi

  • Research Site

    Dubai, Dubayy, 7272

  • Research Site

    Sharjah city, Emirate of Sharjah, 72772

Other trials in United Arab Emirates

Belgium2 sites
  • Research Site

    Leuven, 3000

  • Research Site

    Liège, Li Ge, 4000

Other trials in Belgium

Sweden2 sites
  • Research Site

    Örebro, N Rke, 70185

  • Research Site

    Stockholm, Uppland, 171 76

Other trials in Sweden

About this study

Official title: ASTER: Anifrolumab Study for Treatment Effectiveness in the Real World Multi-National, Observational, Post-Launch Effectiveness Study Among SLE Patients Receiving Anifrolumab in Routine Clinical Practice

Anifrolumab Study of Treatment Effectiveness in the Real World (ASTER) study will collect real world data to obtain a good understanding of the (sustained) clinical effect and patient quality of life outcomes among diagnosed SLE patients who initiate anifrolumab treatment. ASTER will generate critical real-world evidence on the benefits of adding anifrolumab to standard of care treatment for SLE in routine clinical practice, to inform physicians, payers and patients.

Read the detailed description

ASTER is a multi-country, single-arm, prospective, observational study. The study will be initiated on a country-by country basis following the commercial launch of anifrolumab. ASTER is a cohort study, with 1-year retrospective baseline data and up to 5 years of follow-up data.

The minimum enrolment period is anticipated to be 18 months (± 5 months) per country, but it may be extended, if necessary, to reach the overall study target.

In general, patients will enter the study between the first anifrolumab prescription and infusion (index), with follow-up until death, loss to follow-up, patient discontinuing the study, or end of study period (whichever occurs first). Data collection will continue for all patients including those who have discontinued anifrolumab during the study, unless the patients have withdrawn their consent for participation in the study. Relevant clinical data collection will continue for the entire follow up while patient reported outcome (PRO) data collection will continue only up to the 3-year follow up.

The study will use clinical assessments that are relevant for SLE-treating physicians in routine clinical practice, as well as introduce a specific measure for skin manifestations to affirm the potency of anifrolumab in treating SLE-related skin manifestations.

The eCRFs will be accessed through secure web-based portals and will be used to ensure consistent data collection for each healthcare provider involved in this study.

Electronic data collection will be the only method of data collection in this study.

Being tested
None (Observational study)
Keywords
chronic autoimmune disease, immunosuppressants, corticosteroids, human monoclonal antibody (IgG1ƙ mAb), Real World
Medical subject headings
Lupus Erythematosus, Systemic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • None (Observational study)Other

    Also called Observational Study

    Not Applicable since Observational Study

Study groups in NCT05637112
Study groupRoleWhat they receive
Prospective CohortAll patients aged ≥18 years diagnosed with SLE who initiate anifrolumab as prescribed by their healthcare provider (HCP) per the approved country-specific label and are treated at the study sites will be eligible for inclusion.
Receives: Other: None (Observational study)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Disease activity assessed by the Physician Global Assessment (PGA)

    The PGA is a single-item visual analogue scale that describes the physician assessment of a patient's disease and its impact on daily functioning at the time of assessment. The scale ranges from 0 (asymptomatic disease and no limitation of normal activities) to 3 (severe disease and limitation of normal activities).

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  2. Disease activity assessed by Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K)

    The SLEDAI-2K is a global index and includes 24 clinical symptoms and laboratory variables that are weighted by the type of manifestation, but not by severity or dynamic of the individual item. The SLEDAI-2K includes scoring for antibodies and low complement, as well as some renal and hematologic parameters. The total score ranges between 0 and 105, with higher scores representing increased disease activity.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  3. Proportion of patients attaining the composite endpoint of lupus low disease activity (LLDAS)

    The proportion of patients attaining the composite endpoint of LLDAS will be assesed.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

Secondary outcomes (14)
  1. Proportion of patients attaining Definition of Remission in SLE (DORIS)

    The proportion of patients attaining the Definition of Remission in SLE will be assesed.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  2. Clinical SLE Flares assessment by modified revised Safety of Estrogens in Lupus National Assessment-Systemic Lupus Erythematosus Disease Activity Index (SELENA-SLEDAI) flare index (rSFI)

    Flare will be defined as any one criterion present either the Mild/Moderate Flare or Severe Flare categories. New or worsened manifestation will only be reported for manifestation of SLE.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  3. Proportion of patients with irreversible organ damage, using the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI).

    The proportion of patients with irreversible organ damage, using the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index will be assessed. The irreversible, accumulated organ damage from either the disease process or disease treatment, which has been present for at least 6 months, in 12 organ systems will be measured.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  4. SLE treatment patterns prior to, concomitant with and after anifrolumab

    SLE treatment patterns will be analyzed through prevalence and incidence in respect to time to discontinuation.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  5. Functional Assessment of Chronic Illness Therapy - Fatigue Scale (FACIT-Fatigue)

    The FACIT-Fatigue is a 13-item questionnaire formatted for self-administration that assesses patient-reported fatigue and its impact upon daily activities and function over the past 7 days. Patients will be asked to answer each question using a 5-point verbal rating scale, with total scores ranging from 0 (most fatigued) to 52 (least fatigued).

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  6. Lupus Quality of Life (LupusQoL)

    The LupusQoL is a validated SLE-specific HRQoL (health-related quality of life) instrument consisting of 34 items across 8 domains (Physical health, Emotional health, Body image, Pain, Planning, Fatigue, Intimate relationships, and Burden to others). The LupusQoL has a 5-point verbal rating scale, and uses a 4-week recall period. The mean raw domain score is transformed to scores ranging from 25 (worst HRQoL) to 125 (best HRQoL) by dividing by 4 and then multiplying by 100.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  7. Patient Global Assessment (PtGA)

    The PtGA is a single-item question that takes into account all the ways in which illness and health conditions may affect the patient at this time. The patient should consider the previous week when answering this question. Responses range from 0 (Very Well) to 100 (Very Poorly) on a visual analogue scale (VAS).

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  8. EuroQol 5-Dimension Health Questionnaire 5 Level (EQ-5D-5L)

    The EQ-5D-5L is a general health status measure comprising a descriptive system and the EQ VAS. The descriptive system comprises 5 dimensions: Mobility, Self-care, Usual activities, Pain/discomfort and Anxiety/depression. Patients are asked to rate their current health and functional status on a 5-point verbal rating scale for each of the 5 domains. Responses are converted into an overall quality of life score via a preference-based statistical mapping algorithm. The scores on these 5 dimensions can be presented as a health profile or can be converted to a single summary index number (utility) reflecting preferability compared to other health profiles. Additionally, patients are asked to indicate how they rate their current overall health on a visual analog scale (EQ-VAS) ranges from 100 for best imaginable health state to 0 for worst imaginable health state.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  9. Work Productivity and Activity Impairment - Lupus (WPAI:lupus)

    The WPAI:Lupus is an SLE-specific, self-administered questionnaire, that assesses the impact of disease on productivity. The WPAI:Lupus consists of 6 items and has a recall period of the past 7 days. The WPAI:Lupus is divided into 4 domains: Absenteeism (work time missed), Presenteeism (VAS [scored from 0 to 10] rating of impairment while working), Working Productivity Loss (overall work impairment/absenteeism plus presenteeism), and Activity Impairment (VAS [scored from 0 to 10] rating of daily activity, other than work at a job). Scores for each domain are expressed as impairment percentages, with higher scores indicating greater productivity impairment.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  10. Pain Numerical Rating Scale (NRS)

    The pain NRS will measure the pain severity in the past seven days on a scale of 0-10 (0: no pain; 10: worst pain imaginable).

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 3 years post-anifrolumab initiation

  11. Number of outpatient hospital and emergency room visits and procedures

    The healthcare resource utilisation (HCRU) for SLE after anifrolumab initiation as recorded in medical records will be assessed. The number of outpatient hospital and emergency room visits and procedures.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  12. Number of hospital admissions and inpatient hospital procedures

    The HCRU for SLE after anifrolumab initiation as recorded in medical records will be assessed. The number of hospital admissions and inpatient hospital procedures (including duration of hospital stay and reason for hospitalization, stratified by admission to an intensive care unit [ICU] vs non-ICU) will be assessed.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  13. Number of rheumatologist visits and procedures

    The HCRU for SLE after anifrolumab initiation as recorded in medical records will be assessed. The number of rheumatologist visits and procedures (including SLE-related laboratory tests) will be assessed.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

  14. Number of dialysis appointments

    The HCRU for SLE after anifrolumab initiation as recorded in medical records will be assessed. The number of dialysis appointments will be assessed.

    Measured: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Dec 2022
  2. Study start27 Feb 2023
  3. Primary completion30 Dec 2030 (estimated)
  4. Study completion30 Dec 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
551 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05637112
Sponsor's protocol ID
D3461R00043
Acronym
ASTER
Status last verified
Sep 2026
First submitted
24 Nov 2022
Last updated
24 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

Publications

  • Mosca M, Emmas C, Nekeman-Nan C, Stirnadel-Farrant H, Chen S, Carty L, Waratani M, Seo C, Chen S, Sorrentino A. Anifrolumab Study for Treatment Effectiveness in the Real World (ASTER) among patients with systemic lupus erythematosus: protocol for an international observational effectiveness study. BMJ Open. 2024 Nov 21;14(11):e086055. doi: 10.1136/bmjopen-2024-086055.

    PubMed 39578022

Questions about this trial

What is this clinical trial studying?

An observational study of Systemic Lupus Erythematosus, run by AstraZeneca at 74 sites in 9 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 24 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 74 sites in France, Italy, Germany, Israel, Canada and 4 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Disease activity assessed by the Physician Global Assessment (PGA) (time frame: From Baseline (1 year pre-anifrolumab) until follow-up 5 years post-anifrolumab initiation). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05637112, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Sep 2026.

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