← Back to Search

Monoclonal Antibodies

Crizanlizumab for Sickle Cell Disease (SPARKLE Trial)

Phase 3
Recruiting
Research Sponsored by Novartis Pharmaceuticals
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Key
Participants must be aged 12 years and older on the day of signing informed consent. Adolescents include participants aged 12 to <18 years old and adults include participants aged 18 years and older.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 2 years
Awards & highlights
Pivotal Trial

Summary

"This trial is testing a new drug called crizanlizumab to see if it can help reduce the number of painful episodes in adolescent and adult patients with Sickle Cell Disease. The study

Who is the study for?
This trial is for adolescents and adults aged 12 years and older with confirmed Sickle Cell Disease (SCD). They must have experienced 4 to 12 vaso-occlusive crises (VOCs) in the past year. If they're on hydroxyurea/hydroxycarbamide, it should be a stable dose for at least 3 months before the study.
What is being tested?
The SPARKLE study is testing Crizanlizumab (5 mg/kg) against a placebo to see if it's effective and safe in reducing VOCs in SCD patients. This includes those taking hydroxyurea/hydroxycarbamide, with participants randomly assigned to either group.
What are the potential side effects?
Possible side effects of Crizanlizumab may include joint pain, back pain, nausea, fever, abdominal pain or discomfort. Side effects can vary from person to person.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
Select...
I am 12 years old or older.
Select...
I have been diagnosed with sickle cell disease through a blood test.
Select...
I haven't taken hydroxyurea, hydroxycarbamide, or erythropoietin for the last 6 months.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~2 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and 2 years for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Annualized rate of VOCs that are healthcare professional (HCP)-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm
Secondary study objectives
Absolute change from baseline in hemoglobin
Annualized rate of VOC by subtype of management in each treatment arm over the planned 52-week period.
Duration of VOCs that are HCP-managed (including VOCs leading to management at a health care facility or those managed via remote consultation) in each treatment arm over the planned 52-week treatment period.
+5 more

Side effects data

From 2021 Phase 2 trial • 54 Patients • NCT04435184
8%
Chest pain
4%
Headache
4%
Diarrhea
4%
Dark and Infrequent Urination
4%
Venous thrombembolism
4%
Altered mental status
100%
80%
60%
40%
20%
0%
Study treatment Arm
Crizanlizumab
Placebo Saline

Awards & Highlights

Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: Crizanlizumab (SEG101) at 5.0 mg/kgExperimental Treatment1 Intervention
Participants receive Crizanlizumab (SEG101) at 5.0 mg/kg and standard of care.
Group II: PlaceboPlacebo Group1 Intervention
Participants receive the placebo drug and standard of care.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Crizanlizumab
2021
Completed Phase 2
~640

Find a Location

Who is running the clinical trial?

Novartis PharmaceuticalsLead Sponsor
2,912 Previous Clinical Trials
4,252,388 Total Patients Enrolled
~210 spots leftby Mar 2029