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Sickle Cell DiseasePhase 1NCT02193191

Escalation of Plerixafor for Mobilization of CD34+ Hematopoietic Progenitor Cells and Evaluation of Globin Gene Transfer in Patients With Sickle Cell Disease

A Phase 1 study testing Plerixafor in people with Sickle Cell Disease, run by Memorial Sloan Kettering Cancer Center at 2 sites in United States.

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 research study is to test the safety and efficacy of a drug called Plerixafor. Plerixafor is approved by the US FDA for use in increasing blood stem cell counts before collection in cancer patients. It is not yet approved for patients with sickle cell disease. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Sickle Cell Disease
What is being tested?
Plerixafor
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
2 sitesUnited States
Study dates
17 Sep 2014to 27 Mar 2025
Phase
Phase 1
Are there results?
None posted in the registry

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must have confirmed and measurable Sickle Cell Disease, defined by SS or Sβ thalassemia confirmed by hemoglobin fractionation.
  • ≥ 18 to 65 years of age
  • Patient must have a ECOG performance status ≤2 or Karnofsky score > 70%
  • Patients must have acceptable organ and marrow function as defined below:
  • WBC ≥ 3,000/μL
  • ANC ≥ 1,500/μL
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  • platelets ≥150,000//μL
  • Hemoglobin ≥ 6 gm/dL
  • Calculated creatinine clearance ≥ 60ml/min * *Using the Cockcroft-gault equation [140 - Age(yrs)] [Weight(kg)] x 0.85 if Female 72 [Serum Creatinine (mg/dL]
  • Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • Each patient must be willing to participate as a research subject and must sign an informed consent form.

Who cannot join

  • Patients who are:
  • Receiving or received treatment with an investigational agent within 4 weeks prior to entering the study OR
  • have not recovered from adverse events due to agents administered more than 4 weeks earlier as determined by the treating physician.
  • Patients with ALT(SGPT) > 2.5 X upper limit of normal
  • Patients with a creatinine clearance of < 60 ml/min
  • Patients who have uncontrolled illness including, but not limited to:
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  • Ongoing or active infection
  • Emergency room admission or hospitalization in the past 14 days
  • Major surgery in the past 30 days
  • Medical/psychiatric illness/social situations that would limit compliance with study requirements as determined by the treating physician.
  • Female patients who are pregnant or breast-feeding
  • Patients with active hepatitis B, hepatitis C, or HIV infection
  • Patients with poor cardiac function as defined by an ejection fraction < 40% are excluded due to potential poor tolerance of the fluid shifts with leukapheresis (only for patients enrolled on second phase of protocol for Leukapheresis).

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065

  • Weill Cornell Medical College

    New York, New York, 10065

Other trials in United States

About this study

Official title: Safety and Efficacy Trial of Escalation of Plerixafor for Mobilization of CD34+ Hematopoietic Progenitor Cells and Evaluation of Globin Gene Transfer in Patients With Sickle Cell Disease

The purpose of this research study is to test the safety and efficacy of a drug called Plerixafor. Plerixafor is approved by the US FDA for use in increasing blood stem cell counts before collection in cancer patients. It is not yet approved for patients with sickle cell disease. The investigators want to find out if Plerixafor can be used to increase cell counts in patients with sickle cell disease.

Being tested
Plerixafor
Keywords
Plerixafor, 13-229
Medical subject headings
Anemia, Sickle Cell

What participants receive

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

  • PlerixaforDrug

Study groups in NCT02193191
Study groupRoleWhat they receive
PlerixaforExperimentalPatients will receive a single dose of subcutaneous plerixafor with peripheral blood studies at approximately 0-2 hours before, approximately 6-12 hours after, and approximately 20-48 hours after plerixafor administration, with leukapheresis in the last 3 patients on the protocol. Collected HPCs will be transferred to the MSKCC CTCEF to determine if the HPCs are amenable to transduction with a lentiviral vector encoding the normal ß- globin gene.
Receives: Drug: Plerixafor

What is being measured

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

  1. safety

    Safety is assessed using a dose limiting toxicity (DLT) endpoint. Definition of a DLT is the occurrence of any of the below events that meets the following criteria: The occurrence of a vasoocclusive crisis requiring hospitalization, acute chest syndrome, CNS acute event, or any other disease related ischemic-based adverse event (AE) should be considered as a DLT, if occurring in the 48 hours DLT observation period.

    Measured: up to 30 days

  2. efficacy

    Efficacy is defined as 100% of evaluable patients reaching a PB CD34 concentration ≥ 30/uL.

    Measured: ≥ 30/ul at either 6-12 hours or 24-48 hours post plerixafor.

Timeline

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

  1. First posted17 Jul 2014 (estimated)
  2. Study start17 Sep 2014
  3. Primary completion27 Mar 2025
  4. Study completion27 Mar 2025

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02193191
Sponsor's protocol ID
13-229
Status last verified
Mar 2025
First submitted
15 Jul 2014
Last updated
30 Mar 2025
Results posted
No

Publications

  • Boulad F, Zhang J, Yazdanbakhsh K, Sadelain M, Shi PA. Evidence for continued dose escalation of plerixafor for hematopoietic progenitor cell collections in sickle cell disease. Blood Cells Mol Dis. 2021 Sep;90:102588. doi: 10.1016/j.bcmd.2021.102588. Epub 2021 Jun 15.

    PubMed 34166998
  • Avecilla ST, Boulad F, Yazdanbakhsh K, Sadelain M, Shi PA. Process and procedural adjustments to improve CD34+ collection efficiency of hematopoietic progenitor cell collections in sickle cell disease. Transfusion. 2021 Sep;61(9):2775-2781. doi: 10.1111/trf.16551. Epub 2021 Jun 23.

    PubMed 34160085
  • Boulad F, Shore T, van Besien K, Minniti C, Barbu-Stevanovic M, Fedus SW, Perna F, Greenberg J, Guarneri D, Nandi V, Mauguen A, Yazdanbakhsh K, Sadelain M, Shi PA. Safety and efficacy of plerixafor dose escalation for the mobilization of CD34+ hematopoietic progenitor cells in patients with sickle cell disease: interim results. Haematologica. 2018 May;103(5):770-777. doi: 10.3324/haematol.2017.187047. Epub 2018 Feb 1.

    PubMed 29419425

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Plerixafor in people with Sickle Cell Disease, run by Memorial Sloan Kettering Cancer Center at 2 sites in United States.

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 11 inclusion and 13 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 30 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

safety (time frame: up to 30 days). 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 NCT02193191, 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 30 Mar 2025.

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