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Uno studio di fase I di Mozobil nel trattamento dei pazienti con capricci

Uno studio di fase I su MozobilTM nel trattamento di pazienti con WHIMS

Background:

  • WHIMS (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome) is caused by various genetic changes that increase the activity of the chemokine receptor, CXCR4. Excessive function of this receptor causes mature neutrophils (part of the white blood cells) to be retained within the bone marrow rather than being released to the blood and is one of the causes of severe inherited neutropenia (low white blood counts). In neutropenia, the body is less able to fight off infection. Patients with WHIMS usually are at risk for skin, soft tissue, sinus, and lung infections, which can result in loss of hearing, teeth, and lung function.
  • Current treatment for WHIMS consists of regular injections of a white blood cell growth stimulating medication called granulocyte colony stimulating factor (G-CSF), and supplemental immunoglobulin (antibody). These therapies are expensive, nonspecific, have significant side effects and toxicities, and do not fully correct all problems, especially warts and cancers related to human papillomavirus (HPV).
  • A drug called Mozobil has been approved for use in combination with G-CSF to increase the number of stem cells that can be collected prior to bone marrow transplantation. Mozobil may offer a specific and well-tolerated new treatment for WHIMS and other syndromes characterized by neutropenia.

Objectives:

  • To evaluate whether Mozobil is safe and effective to treat neutropenia (low white blood cell count) in patients with WHIMS.
  • To determine an appropriate treatment dose of Mozobil, within currently approved dosage levels.

Eligibility:

- Individuals between 18 and 75 years of age who have been diagnosed with WHIMS and have a history of severe infections.

Design:

  • Potential participants will undergo a screening with a medical history, physical examination, questionnaire, heart and lung function scans, and blood and urine samples. Tests will also be done for hepatitis B and C virus, and human immunodeficiency virus (HIV) that causes acquired immunodeficiency syndrome (AIDS), as well as to check neutrophil function.
  • Patients who are being treated with G-CSF will stop injections for 2 days before being admitted to the National Institutes of Health (NIH) Clinical Center.
  • Patients may participate in a Dose Escalation study and receive increasing doses of Mozobil over 5 days of treatment until their white blood cell count improves sufficiently or the maximum approved dose is reached. Blood samples will be taken regularly throughout the treatment process. Patients will then receive an additional dose of Mozobil at the maximum approved dose or the dose sufficient to cause improvement, before restarting the G-CSF injections.
  • Patients may also participate in a long-term Chronic Dosing study and receive Mozobil once or twice a day for up to a maximum of 60 months.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Mozobil (TM) (plerixafor injection, Genzyme/Sanofi) is a Food and Drug Administration approved medication to mobilize CD34+ hematopoietic stem cells prior to apheresis and use in autologous transplantation in non-Hodgkin lymphoma and multiple myeloma when used in conjunction with granulocyte-colony stimulating factor (G-CSF). The drug s mechanism of action is the specific and reversible inhibition of the chemokine receptor, CXCR4, expressed on CD34+ cells and other leukocytes. This inhibition interferes with the binding of stromal cell derived factor-1 (SDF-1), which is constitutively expressed on bone marrow stromal cells and appears to cause direct and indirect cellular adhesive interactions. Severe congenital neutropenia is a rare inherited disorder in which the affected individuals develop chronic or cyclical neutropenia with circulating counts below 500 cells/microliter blood. This disorder may result from a variety of genetic defects in progenitor- or neutrophil-expressed genes such as elastase, CXCR4, G6PC3, etc. Myelokathexis is the abnormal retention of mature leukocytes in the bone marrow and is seen in some types of severe chronic neutropenia such as warts, hypogammaglobulinemia, infections, and myelokathexis syndrome (WHIMS). WHIMS is a rare primary immunodeficiency, which is known to be caused by mutations that enhance CXCR4 signaling. Our hypothesis is that Mozobil(TM) can be used safely to partially block CXCR4 and treat neutropenia resulting from myelokathexis at doses considerably lower than that being used for CD34+ cell mobilization. This new treatment could also improve other aspects of the disease such as frequent infections, warts, and hypogammaglobulinemia. To test this hypothesis, we propose this trial of Mozobil (TM) in adults with WHIMS, examining safety and absolute neutrophil count as the primary endpoint. Mozobil is injected subcutaneously and will be injected via syringes (up to 84 months) or via an infusion pump (pilot trial of up to 10 subjects for a 24-month period).

Tipo di studio

Interventistico

Iscrizione (Effettivo)

14

Fase

  • Fase 2
  • Fase 1

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Maryland
      • Bethesda, Maryland, Stati Uniti, 20892
        • National Institutes of Health Clinical Center

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 75 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

  • INCLUSION CRITERIA:

All of the following inclusion criteria must be met for a subject to be enrolled in this study:

  • Clinical diagnosis of WHIMS and documented severe infection

  • Must be greater than or equal to 18 and less than or equal to 75 years of age

  • Willingness to interrupt medications to raise the white count (WBC) such as G-CSF or GM-CSF for at least 2 days before and while on the study drug

  • Must not be pregnant or breastfeeding

  • Must have a personal physician

  • Must be willing to provide blood, plasma, serum, and DNA samples for storage

  • Subjects must agree not to become pregnant or to impregnate a female. If of childbearing potential, must agree to consistently use two types of contraception throughout study participation. Acceptable forms of contraception include the following:

    1. Condoms, male or female, with or without a spermicide
    2. Diaphragm or cervical cap with spermicide
    3. Intrauterine device
    4. Contraceptive pills or patch, Norplant, Depo-Provera or other FDA-approved contraceptive method
    5. Male partner has previously undergone a vasectomy for which there is documentation of aspermatogenic sterility

EXCLUSION CRITERIA:

If any of the following exclusion criteria are met, a subject will not be enrolled in this study:

  • Absence of a diagnosis of WHIMS
  • Patient is less than 18 years old
  • Absence of a documented history of severe infection
  • Neutropenia due to maturation defects in the myeloid lineage or that the PI feels is unlikely to benefit from this medication
  • Pregnant women or breastfeeding
  • History of serious cardiac arrhythmia or cardiac defects that make such more likely
  • Renal failure (calculated creatinine clearance [CrCl] <15 mL/min or requiring dialysis)
  • Signs or symptoms of active microbial infection at the time of study entry.
  • Any condition that, in the investigator s opinion, places the patient at undue risk by participating in the study
  • Unwillingness to undergo testing or procedures associated with this protocol

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Treatment Arm

neutropenia and infections

twice daily subcutaneous injection or via continuous subcutaneous infusion

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Safety
Lasso di tempo: Duration of treatment, up to 7 years

No incident of grade 3/4 toxicities.

Duration of treatment, up to 7 years
Increase ANC
Lasso di tempo: Duration of treatment, up to 7 years.

Average ANC > 250 and > twice baseline level.

Duration of treatment, up to 7 years.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
reduced HPV lesions
Lasso di tempo: duration of treatnebt, up to 6 years.

photographs demonstrating reduced warts, after extended period of treatment.

duration of treatnebt, up to 6 years.
Increase Leucocytes
Lasso di tempo: prior to and after study drug

statistically significant increase leucocyte after drug injection.

prior to and after study drug

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: David H McDermott, M.D., National Institute of Allergy and Infectious Diseases (NIAID)

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

6 gennaio 2010

Completamento primario (Effettivo)

25 giugno 2026

Completamento dello studio (Effettivo)

25 giugno 2026

Date di iscrizione allo studio

Primo inviato

27 agosto 2009

Primo inviato che soddisfa i criteri di controllo qualità

27 agosto 2009

Primo Inserito (Stimato)

28 agosto 2009

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

28 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

25 settembre 2026

Ultimo verificato

17 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 090200
  • 09-I-0200

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .