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Sickle Cell Disease (SCD)Phase 2STEADFASTNCT04053764

Study Exploring the Effect of Crizanlizumab on Kidney Function in Patients With Chronic Kidney Disease Caused by Sickle Cell Disease

A Phase 2 study testing Crizanlizuamb in people with Sickle Cell Disease (SCD), run by Novartis Pharmaceuticals at 24 sites in 11 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The goal of the study was to evaluate descriptively the effect of crizanlizumab + standard of care and standard of care alone on renal function in sickle cell disease patients ≥ 16 years with chronic kidney disease due to sickle cell nephropathy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Sickle Cell Disease (SCD)
What is being tested?
Crizanlizuamb
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
58 participants
Where
24 sitesin 11 countries
Study dates
10 Dec 2019to 20 Mar 2023
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed diagnosis of SCD (HbSS and HbSβ0-thal SCD genotypes are eligible)
  • Patients with eGFR ≥ 45 to ≤ 140 mL/min/1.73 m2 based on CKD EPI formula (patients ≥ 18) or the Creatinine-based "Bedside Schwartz" equation (patients < 18)
  • Patients with ACR of ≥ 100 to < 2000 mg/g (taken as an average of the three screening ACR values to determine eligibility)
  • Receiving at least 1 standard of care drug(s) for SCD-related CKD: If receiving HU/HC, the patient must have been receiving HU/HC for at least 6 months and on a stable dose for 3 months, and/or an ACE inhibitor and/or ARB for 3 months and on a stable dose for those 3 months.
  • Hb ≥ 4.0 g/dL, absolute neutrophil count (ANC) ≥ 1.0 x 10^9/L, and platelet count ≥ 75 x 10^9/L
  • Adequate hepatic function as defined by:
Show all 9Show fewer
  • Alanine aminotransferase (ALT) < 3.0 x upper limit of normal (ULN)
  • Direct (conjugated) bilirubin ≤ 3.0 x ULN
  • Written informed consent (or assent/ parental consent for minor subjects) prior to any screening procedures

Who cannot join

  • History of stem cell transplant
  • Patients with evidence of AKI within 3 months of study entry (can decrease interval to within 6 weeks of study entry only if renal function has returned to pre-AKI values prior to study entry)
  • Blood pressure > 140/90 mmHg despite treatment
  • Patients undergoing renal replacement therapy (ie. hemodialysis, peritoneal dialysis, hemofiltration and kidney transplantation)
  • Received blood products within 30 days of Week 1 Day 1
  • Participating in a chronic transfusion program
Show all 11Show fewer
  • History of kidney transplant
  • Patients with hypoalbuminemia
  • Body mass index of ≥ 35
  • Currently receiving or received voxelotor within 6 months of screening
  • Patient has received crizanlizumab and/or other selectin inhibitor or plans to receive it during the duration of the study.

Trial locations and contacts

24 sites in 11 countries.

24 sites in 11 countries

United States6 sites
  • Our Lady of the Lake Regional Medic .

    Baton Rouge, Louisiana, 70809

  • University of Alabama Birmingham

    Birmingham, Alabama, 35233

  • University of Illinois Hospital and Health Sciences System .

    Chicago, Illinois, 60612

  • East Carolina University BrodySchool of Med 3

    Greenville, North Carolina, 27858

  • University of Texas Health Science Center at Houston

    Houston, Texas, 77030

  • Univ of Tenn Health Sciences Ctr

    Memphis, Tennessee, 38163

Other trials in United States

Brazil3 sites
  • Novartis Investigative Site

    Porto Alegre, 90035-003

  • Novartis Investigative Site

    Rio de Janeiro, Rio de Janeiro, 20.211-030

  • Novartis Investigative Site

    São Paulo, São Paulo, 01232-010

Other trials in Brazil

Turkey (Türkiye)3 sites
  • Novartis Investigative Site

    Adana, 01250

  • Novartis Investigative Site

    Adana, 01330

  • Novartis Investigative Site

    Antakya / Hatay, 31100

Other trials in Turkey (Türkiye)

United Kingdom3 sites
  • Novartis Investigative Site

    London, SE1 9RT

  • Novartis Investigative Site

    London, SE5 9RS

  • Novartis Investigative Site

    London, W12 0HS

Other trials in United Kingdom

France2 sites
  • Novartis Investigative Site

    Créteil, 94010

  • Novartis Investigative Site

    Paris, 75015

Other trials in France

Greece2 sites
  • Novartis Investigative Site

    Athens, 115 27

  • Novartis Investigative Site

    Larissa, 41221

Other trials in Greece

Ireland1 site
  • Novartis Investigative Site

    Dublin, DO8

Other trials in Ireland

Lebanon1 site
  • Novartis Investigative Site

    Tripoli, 1434

Other trials in Lebanon

Netherlands1 site
  • Novartis Investigative Site

    Amsterdam, 1105 AZ

Other trials in Netherlands

Panama1 site
  • Novartis Investigative Site

    Panama City, 0801

Other trials in Panama

Spain1 site
  • Novartis Investigative Site

    Barcelona, Catalonia, 08035

Other trials in Spain

About this study

Official title: A Phase II, Multicenter, Randomized, Open Label Two Arm Study Evaluating the Effect of Crizanlizumab + Standard of Care and Standard of Care Alone on Renal Function in Sickle Cell Disease Patients ≥ 16 Years With Chronic Kidney Disease Due to Sickle Cell Nephropathy (STEADFAST)

The goal of the study was to evaluate descriptively the effect of crizanlizumab + standard of care and standard of care alone on renal function in sickle cell disease patients ≥ 16 years with chronic kidney disease due to sickle cell nephropathy.

Read the detailed description

Approximately 50 patients were to be randomized 1:1 to receive either crizanlizumab (5 mg/kg) + standard of care or standard of care alone. Patients were stratified at randomization based on chronic kidney disease (CKD) risk category (moderate risk or high/very high risk) and hydroxyurea/hydroxycarbamide (HU/HC) prescription (Yes/No). The CKD risk categories used for stratification were based on both Estimated glomerular filtration rate(eGFR) and albuminuria assessed by Albumin/creatinine ratio (ACR).

Being tested
Crizanlizuamb, Standard of Care
Keywords
SEG101, Sickle Cell Disease, SCD, Crizanlizumab, Sickle cell nephropathy, chronic kidney disease, CKD, albuminuria (ACR), renal function, standard of care
Medical subject headings
Anemia, Sickle Cell, Renal Insufficiency, Chronic, Albuminuria

What participants receive

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

  • CrizanlizuambDrug

    Also called SEG101

    Crizanlizumab is a concentrate for solution for infusion, i.v. use. Supplied in single use 10 mL vials at a concentration of 10 mg/mL. One vial contains 100 mg of crizanlizumab

  • Standard of CareDrug

    HU/HC (hydroxyurea/hydroxycarbamide) and/or ACE (angiotensin-converting enzyme) inhibitors and/or ARBs (angiotensin-receptor blocker)

Study groups in NCT04053764
Study groupRoleWhat they receive
crizanlizumab + standard of careExperimental5 mg/kg by intravenous (i.v.) infusion at Week 1 Day 1, Week 3 Day 1 and Day 1 of every 4-week cycle until Week 51 in addition to their usual standard of care treatment.
Receives: Drug: Crizanlizuamb; Drug: Standard of Care
standard of careActive comparatorPatients in the standard of care alone arm will continue to receive their usual standard of care treatment.
Receives: Drug: Standard of Care

What is being measured

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

  1. Percentage of Participants With ≥ 30% Decrease in Albuminuria (ACR) at 12 Months

    The effect of SEG101 on clinical disease activity was measured by at least 30% decrease in Albumin to Creatinine Ratio (ACR) from baseline to month 12. A reduction from baseline indicates improvement in patients.

    Measured: Baseline to 12 months

Secondary outcomes (11)
  1. Change From Baseline in Albuminuria (ACR) at 3, 6, 9 and 12 Months

    The effect of SEG101 on clinical disease activity was measured by the change in albuminuria (ACR) between baseline and month 3, baseline and month 6, baseline and month 9, baseline and month 12. A reduction from baseline indicates improvement in patients.

    Measured: Baseline to 3, 6, 9, and 12 months

  2. Percentage of Participants With ≥ 30% Decrease in Albuminuria (ACR) at 6 Months

    The effect of SEG101 on clinical disease activity was measured by at least 30% decrease in Albumin to Creatinine Ratio (ACR) from baseline to month 6. A reduction from baseline indicates improvement in patients.

    Measured: Baseline to 6 months

  3. Percentage of Participants With Protein/Creatinine Ratio (PCR) Improvement and Stable PCR at 12 Months

    The effect of SEG101 on clinical disease activity was measured by counting patients who had Stable PCR: within ± 20% change from baseline to month 12. PCR improvement: ≥ 20% decrease in PCR from baseline indicates improvement in patients.

    Measured: Baseline to 12 months

  4. Percentage Change From Baseline in Estimated Glomerular Filtration Rate (eGFR)

    The percentage change in eGFR was calculated as the post-baseline eGFR value minus the baseline eGFR divided by the eGFR at baseline. A reduction from baseline indicates improvement in participants.

    Measured: Baseline to 3, 6, 9, and 12 months

  5. Slope of Albumin to Creatinine Ratio (ACR) Decline

    The effect of SEG101 on clinical disease activity was measured by the slope of ACR decline between baseline and Month 12. A reduction from baseline indicates improvement in patients.

    Measured: Baseline to 12 months

  6. Slope of Estimated Glomerular Filtration Rate (eGFR) Decline

    The effect of SEG101 on clinical disease activity was measured by the slope of eGFR between baseline and Month 12. The calculation of eGFR is based on the chronic kidney disease epidemiology collaboration (CKD-EPI) (for patients ≥ 18) and Creatinine-based "Bedside Schwartz" (for patients < 18) equations. A reduction in drop rate from baseline indicates improvement in patients.

    Measured: Baseline to 12 months

  7. Percentage of Participants With Progression of Chronic Kidney Disease (CKD) at 12 Months

    The effect of SEG101 on clinical disease activity was measured by percentage of participants with CKD progression between baseline and Month 12. A reduction from baseline indicates improvement in participants.

    CKD progression is defined as an increase in CKD progression category, a 25% or greater drop in eGFR from baseline or at least 50% increase in ACR for patients with severe (A3) albuminuria and a doubling of albumin levels in patients with moderate (A2) albuminuria.

    Measured: Baseline to 12 months

  8. Shift Table for Chronic Kidney Disease (CKD) Progression

    The effect of SEG101 on clinical disease activity was measured by percentage of participants with CKD progression between baseline and Month 12. A reduction from baseline indicates improvement in patients.

    Measured: Baseline and month 12

  9. Immunogenicity: Percentage of Participants With Anti-drug Antibodies (ADA) to Crizanlizumab

    The effect of SEG101 on clinical disease activity was measured by percentage of participants shifted to different worst post-baseline categories between baseline and Month 12. An increase in percentage shifting from higher category to lower category indicates improvement in patients.

    Baseline is defined as the last non-missing value prior to the first dose.

    Measured: Baseline to follow-up period (at select time points), assessed up to approximately 1 year and 4 months

  10. Annualized Rate of Visits to Emergency Room (ER) and Hospitalizations

    The effect of SEG101 on clinical disease activity was measured by summarizing the annualized rate of visits to ER and hospitalizations between baseline and 1 year 4 months. Annualized rate of hospitalizations and ER visits due to VOC =(Number of ER or hospitalizations reported until End date x 365.25)/(End date-date of first dose of study treatment+1). A reduction from baseline indicates improvement in patients.

    Measured: Baseline to follow-up period (at select time points), assessed up to approximately 1 year and 4 months

  11. Mean Serum Concentration (Ctrough) of Crizanlizumab

    The effect of SEG101 on clinical disease activity was measured by checking the concentration of the Drug in serum at different time points.

    Crizanlizumab pre-dose/trough pharmacokinetic samples were taken at select time points.

    Measured: Pre-dose and 336 hours post-dose on Week 3 Day 1; pre-dose and 672 hours post dose on Week 11 Day 1, Week 23 Day 1 and Week 39 Day 1; and 672 hours post dose on Week 53 Day 1

Timeline

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

  1. First posted12 Aug 2019
  2. Study start10 Dec 2019
  3. Primary completion20 Mar 2023
  4. Study completion20 Mar 2023

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04053764
Sponsor's protocol ID
CSEG101A2203
Other IDs
2018-003608-38, 2018
Acronym
STEADFAST
Status last verified
Oct 2024
First submitted
9 Aug 2019
Last updated
9 Oct 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent expert panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data is currently available according to the process described on www.clinicalstudydatarequest.com.

Publications

  • Abbasi M, Srivastava A, Saraf SL. Management of Kidney Disease with Sickle Cell Disease. J Am Soc Nephrol. 2025 Oct 1;36(10):2041-2054. doi: 10.1681/ASN.0000000804. Epub 2025 Jun 26.

    PubMed 40569673
  • Obadina M, Wilson S, Derebail VK, Little J. Emerging Therapies and Advances in Sickle Cell Disease with a Focus on Renal Manifestations. Kidney360. 2023 Jul 1;4(7):997-1005. doi: 10.34067/KID.0000000000000162. Epub 2023 May 31.

    PubMed 37254256

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Crizanlizuamb in people with Sickle Cell Disease (SCD), run by Novartis Pharmaceuticals at 24 sites in 11 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 9 inclusion and 11 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: finished, as of the sponsor's last update on 9 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 24 sites in United States, Brazil, Turkey (Türkiye), United Kingdom, France and 6 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 Jun 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With ≥ 30% Decrease in Albuminuria (ACR) at 12 Months (time frame: Baseline to 12 months). 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 NCT04053764, which also lists 2 linked publications.

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 9 Oct 2024; AzTrials last refreshed its copy on 31 Oct 2026.

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