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Sickle Cell DiseasePhase 2SUSTAINNCT01895361

Study to Assess Safety and Impact of SelG1 With or Without Hydroxyurea Therapy in Sickle Cell Disease Patients With Pain Crises

A Phase 2 study testing SelG1 in people with Sickle Cell Disease, run by Reprixys Pharmaceutical Corporation at 56 sites in 3 countries.

Completed

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

Official record
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Trial summary

The purpose of this study was to determine whether the investigational drug SelG1 when given to sickle cell disease patients either taking or not taking hydroxyurea was effective in preventing or reducing the occurrence of pain crises. SelG1 prevents various cells in the bloodstream from sticking together. Read more about this study

Who is it for?
Ages 16 to 65 years
Conditions the study is for
Sickle Cell Disease
What is being tested?
SelG1
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
198 participants
Where
56 sitesin 3 countries
Study dates
Jul 2013to Mar 2016
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 16 to 65 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Sickle Cell Disease (HbSS, HbSC, HbSβ⁰-thalassemia, or HbSβ⁺-thalassemia)
  • If receiving hydroxyurea or erythropoietin, treatment must have been prescribed for at least 6 months, with the dose stable for at least 3 months
  • Between 2 and 10 sickle cell-related pain crises in the past 12 months

Who cannot join

  • On a chronic transfusion program or planning on exchange transfusion during the study
  • Hemoglobin <4.0 g/dL
  • Planned initiation, termination, or dose alteration of hydroxyurea during the study
  • Receiving chronic anticoagulation therapy (e.g. warfarin, heparin) other than aspirin

Trial locations and contacts

56 sites in 3 countries.

56 sites in 3 countries

United States49 sites
  • Study site

    Atlanta, Georgia

  • Study site

    Augusta, Georgia

  • Study site

    Aurora, Colorado

  • Study site

    Baltimore, Maryland

  • Study site

    Baton Rouge, Louisiana

  • Study site

    Bethesda, Maryland

  • Study site

    Birmingham, Alabama

  • Study site

    Boston, Massachusetts

  • Study site

    Brooklyn, New York

  • Study site

    Chapel Hill, North Carolina

  • Study site

    Charleston, South Carolina

  • Study site

    Chicago, Illinois

  • Study site

    Cleveland, Ohio

  • Study site

    Columbus, Ohio

  • Study site

    Daytona Beach, Florida

  • Study site

    Detroit, Michigan

  • Study site

    Durham, North Carolina

  • Study site

    Fort Worth, Texas

  • Study site

    Greenville, North Carolina

  • Study site

    Houston, Texas

  • Study site

    Indianapolis, Indiana

  • Study site

    Jackson, Mississippi

  • Study site

    Jacksonville, Florida

  • Study site

    Kansas City, Missouri

  • Study site

    Las Vegas, Nevada

  • Study site

    Little Rock, Arkansas

  • Study site

    Los Angeles, California

  • Study site

    Louisville, Kentucky

  • Study site

    Miami, Florida

  • Study site

    Mobile, Alabama

  • Study site

    New Brunswick, New Jersey

  • Study site

    New Haven, Connecticut

  • Study site

    New Hyde Park, New York

  • Study site

    New Orleans, Louisiana

  • Study site

    Newark, New Jersey

  • Study site

    Norfolk, Virginia

  • Study site

    Oakland, California

  • Study site

    Oklahoma City, Oklahoma

  • Study site

    Orange, California

  • Study site

    Orlando, Florida

  • Study site

    Peoria, Illinois

  • Study site

    Philadelphia, Pennsylvania

  • Study site

    Pittsburgh, Pennsylvania

  • Study site

    Richmond, Virginia

  • Study site

    Sacramento, California

  • Study site

    Sumter, South Carolina

  • Study site

    Tampa, Florida

  • Study site

    The Bronx, New York

  • Study site

    Washington D.C., District of Columbia

Other trials in United States

Brazil6 sites
  • Study site

    Campinas, São Paulo

  • Study site

    Porto Alegre, Rio Grande do Sul

  • Study site

    Rio de Janeiro

  • Study site

    Salvador, Estado de Bahia

  • Study site

    São José Do Rio Preto, São Paulo

  • Study site

    São Paulo

Other trials in Brazil

Jamaica1 site
  • Study site

    Kingston

Other trials in Jamaica

About this study

Official title: A Phase II, Multicenter, Randomized, Placebo-Controlled, Double-Blind, 12-Month Study to Assess Safety and Efficacy of SelG1 With or Without Hydroxyurea Therapy in Sickle Cell Disease Patients With Sickle Cell-Related Pain Crises

The purpose of this study was to determine whether the investigational drug SelG1 when given to sickle cell disease patients either taking or not taking hydroxyurea was effective in preventing or reducing the occurrence of pain crises. SelG1 prevents various cells in the bloodstream from sticking together. By stopping these cell-cell interactions, SelG1 may prevent small blood vessels from becoming blocked and therefore reduce the occurrence and severity of pain crises. Other effects of SelG1 was evaluated, as well as the safety of the drug and how long it stayed in the blood stream.

Funding Source - FDA Office of Orphan Products Development (OOPD)

Being tested
SelG1, Placebo
Keywords
SelG1, P-selectin, monoclonal antibody, sickle cell disease, sickle cell anemia, sickle cell, pain crisis, pain crises, vasoocclusion, vaso-occlusion, priapism, hepatic sequestration, splenic sequestration, chest syndrome, SCD
Medical subject headings
Anemia, Sickle Cell, Priapism

What participants receive

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

  • SelG1Drug

  • PlaceboDrug

Study groups in NCT01895361
Study groupRoleWhat they receive
High-dose SelG1 (Selg1 5.0 mg/kg)ExperimentalIV Infusion, once every 4 weeks through Week 50
Receives: Drug: SelG1
Low-dose SelG1 (Selg1 2.5 mg/kg)ExperimentalIV Infusion, once every 4 weeks through Week 50
Receives: Drug: SelG1
PlaceboPlacebo comparatorIV Infusion, once every 4 weeks through Week 50
Receives: Drug: Placebo

What is being measured

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

  1. Annual Rate of Sickle Cell-related Pain Crises (SCPC) Per Hodges-Lehmann Median

    An SCPC is defined as an acute episode of pain with no other medically determined cause than a vasoocclusive event that requires a medical facility visit and treatment with oral or parenteral narcotics, or parenteral non-steroidal anti-inflammatory drugs. The annual rate of SCPC is defined as the total number of pain crises for a patient occurring from the date of randomization to the end date multiplied by 365 divided by the number of days during that same time period. End date is defined as the last dose date plus 14 days. For participants never dosed, the end date was the end of study date. This calculation accounts for early dropouts or lost to follow-up by extrapolating the SCPC rate of every participant to one year.

    Measured: One year

  2. Annual Rate of Sickle Cell-related Pain Crises (SCPC) - Per Standard Median

    An SCPC is defined as an acute episode of pain with no other medically determined cause than a vasoocclusive event that requires a medical facility visit and treatment with oral or parenteral narcotics, or parenteral non-steroidal anti-inflammatory drugs. The annual rate of SCPC is defined as the total number of pain crises for a patient occurring from the date of randomization to the end date multiplied by 365 divided by the number of days during that same time period. End date is defined as the last dose date plus 14 days. For participants never dosed, the end date was the end of study date. This calculation accounts for early dropouts or lost to follow-up by extrapolating the SCPC rate of every participant to one year.

    Measured: One year

Secondary outcomes (6)
  1. Annual Rate of Days Hospitalized (Key Secondary Endpoint) Per Hodges-Lehmann Median

    The annual rate of days hospitalized was calculated as the number of days hospitalized multiplied by 365 divided by the end date minus the date of randomization plus one where the end date is defined as the last dose date plus 14 days (for subjects never dosed, the end date equaled the end of study date, which was the last site contact for these patients).

    Measured: One year

  2. Time to First Sickle Cell-related Pain Crisis

    Time to first SCPC is defined as months from randomization to first SCPC. A participant without SCPC before withdrawal or completion of the study is considered censored at the time of the end date. End date is defined as the last dose plus 14 days. For participants never dosed, the end date is the end of study date.

    Measured: Up to one year

  3. Time to Second Sickle Cell-related Pain Crisis

    Time to second SCPC is defined as months from randomization to second SCPC. A patient with less than two SCPC before withdrawal or completion of the study is considered censored at the time of the end date. End date is defined as the last dose plus 14 days. For patients never dosed, the end date is the end of study date.

    Measured: Up to one year

  4. Annual Rate of Uncomplicated Sickle Cell-related Pain Crisis Per Hodges-Lehmann Median

    Uncomplicated SCPC is defined as an acute episode of pain with no known cause for pain other than a vasoocclusive event; requiring a visit to a medical facility; and requiring treatment with a parenteral or oral narcotic (including opiates), or parenteral NSAIDs; but is NOT classified as an acute chest syndrome, hepatic sequestration, splenic sequestration or priapism.

    Measured: Up to one year

  5. Annual Rate of Acute Chest Syndrome Per Hodges-Lehmann Median

    Acute Chest Syndrome (ACS) is defined on the basis of the finding of a new pulmonary infiltrate involving at least one complete lung segment that was consistent with alveolar consolidation, but excluding atelectasis (as indicated by chest X-ray). At least one of the following additional signs or symptoms needs to be present as well: a participant had to have reported chest pain, a temperature of more than 38.5oC, tachypnea, wheezing or cough.

    Measured: One year

  6. Patient Reported Outcome: Change From Baseline in Pain Severity/Pain Interference Domain From Brief Pain Inventory (BPI) Questionnaire

    The BPI instrument was completed by the patients at pre-specified study visits prior to \& during the Treatment \& Follow-Up Evaluation Phases. Patients completed the brief pain inventory long-form, 1-week recall at the indicated pre-specified study visits. The BPI is a standardized self-reported questionnaire developed to provide information on the intensity of pain (the sensory dimension) as well as the degree to which pain interferes with function (the reactive dimension). The BPI also asks questions about pain relief, pain quality, \& the patient's perception of the cause of pain. Since pain can be quite variable over a day, the BPI asks patients to rate their pain at the time of responding to the questionnaire (pain now), \& also at its worst, least, \& average over the previous week. The scorings for pain \& interference have a range from 0 (no pain/no interference) to 10 (worst pain/complete interference). The BPI scoring manual was used to calculate scores for each domain.

    Measured: Baseline, Day 15, Week 14, Week 26, Week 38, Week 52, and Week 58, up to 58 weeks

Timeline

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

  1. First posted10 Jul 2013 (estimated)
  2. Study startJul 2013
  3. Primary completionMar 2016
  4. Study completionMar 2016

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
198 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01895361
Sponsor's protocol ID
SelG1-00005
Other IDs
R44HL093893, R01FD004805
Acronym
SUSTAIN
Status last verified
Jan 2020
First submitted
3 Jul 2013
Last updated
31 Jan 2020
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

  • Sy SKB, Tanaka C, Grosch K. Population Pharmacokinetics and Pharmacodynamics of Crizanlizumab in Healthy Subjects and Patients with Sickle Cell Disease. Clin Pharmacokinet. 2023 Feb;62(2):249-266. doi: 10.1007/s40262-022-01193-4. Epub 2022 Dec 18.

    PubMed 36529836
  • Kanter J, Brown RC, Norris C, Nair SM, Kutlar A, Manwani D, Shah N, Tanaka C, Bodla S, Sanchez-Olle G, Albers U, Liles D. Pharmacokinetics, pharmacodynamics, safety, and efficacy of crizanlizumab in patients with sickle cell disease. Blood Adv. 2023 Mar 28;7(6):943-952. doi: 10.1182/bloodadvances.2022008209.

    PubMed 36355805
  • Ataga KI, Kutlar A, Kanter J, Liles D, Cancado R, Friedrisch J, Guthrie TH, Knight-Madden J, Alvarez OA, Gordeuk VR, Gualandro S, Colella MP, Smith WR, Rollins SA, Stocker JW, Rother RP. Crizanlizumab for the Prevention of Pain Crises in Sickle Cell Disease. N Engl J Med. 2017 Feb 2;376(5):429-439. doi: 10.1056/NEJMoa1611770. Epub 2016 Dec 3.

    PubMed 27959701

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SelG1 in people with Sickle Cell Disease, run by Reprixys Pharmaceutical Corporation at 56 sites in 3 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 3 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: finished, as of the sponsor's last update on 31 Jan 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 56 sites in United States, Brazil, Jamaica. 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. Some participants in this study may receive a placebo. 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 31 Jan 2020). 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?

Annual Rate of Sickle Cell-related Pain Crises (SCPC) Per Hodges-Lehmann Median (time frame: One year). The study lists 2 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 NCT01895361, which also lists 3 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 31 Jan 2020.

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