MedPath

GRASPA Treatment for Patients With Acute Myeloblastic Leukemia

Phase 2
Completed
Conditions
Acute Myeloid Leukemia
Interventions
Registration Number
NCT01810705
Lead Sponsor
ERYtech Pharma
Brief Summary

The protocol aims at adding GRASPA (L-asparaginase encapsulated in red blood cells, eryaspase) to standard chemotherapy (low-dose cytarabine) to treat patients older than 65 years diagnosed with AML and unfit for intensive chemotherapy.

Detailed Description

L-asparaginase (ASNase) holds a key role in chemotherapy for Acute Lymphoblastic Leukemia (ALL) in children and young adults. In elderly patients, its efficacy is counterbalanced by its toxicity, which impairs its use. However, a study conducted with GRASPA (L-asparaginase encapsulated in red blood cells, eryaspase) in elderly ALL (study reference "GRASPALL-GRAAL SA2 2008") showed that efficacy/safety profile was positive, paving the way for introducing ASNase benefit into chemotherapy for elderly patients.

In adults, Capizzi (1988) reported a significant benefit of ASNase associated with high-dose cytarabine treatment (HiDAC) in Acute Myeloid Leukemia (AML). Indeed, there was an overall statistically superior complete remission rate for HiDAC/ASNase (40%) vs HiDAC (24%) and an overall survival benefit for patients treated with HiDAC/ASNase (19.6 weeks vs 15.9 weeks).

Another study in elderly patients also displayed positive results for ASNase treatment (Petti, 1989), as well as recent single case reports that point out the potential benefit of ASNase in different AML or mixed lineage leukemia (Horikoshi, 2009; Rubnitz, 2009).

Our preclinical results also showed that an AML cell line and blast cells from the bone marrow of AML patients were sensitive to ASNase in vitro.

However, up to now, the toxicity of ASNase for elderly had prevented its use in this population that represents the majority of AML patients.

Considering the promising results of ASNase for AML treatment and the better safety profile offered by GRASPA (L-aspariginase encapsulated in red blood cells, erysapase), a multicenter, randomized, controlled IIb trial is open for recruitment. Efficacy and tolerability of GRASPA plus low-dose cytarabine will be evaluated versus low-dose cytarabine alone in treatment of AML patients over 65 year-old, unfit for intensive chemotherapy.

One hundred and twenty-three patients (65-85 year-old) newly diagnosed for AML are planned for inclusion in the study.

A 2:1 randomization will be respected (82 patients treated with GRASPA® plus low-dose cytarabine and 41 patients treated with low-dose cytarabine alone). Each patient will be followed for 24 months.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
123
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
GRASPAGRASPApatients will receive one injection of GRASPA (100 IU/kg) after each course of low-dose cytarabine (see Arm "Control")
Primary Outcome Measures
NameTimeMethod
Overall SurvivalEach patient will be followed for a duration of 24 months.

OS is defined as the time elapsed between randomization and death from any cause.

Secondary Outcome Measures
NameTimeMethod
Response to TreatmentEach patient will be followed for a duration of 24 months.

Percentage of patients with Complete remission (CR), Complete remission with incomplete recovery (neutrophil or platelet regeneration, CRi), Partial remission (PR)

Asparagine Synthetase (Optional)Until patient stops treatment (expected average of 8 months)

Asparagine synthetase and in vitro sensitivity to aspariginase on the harvested bone marrow cells

Patient Quality of LifeEach patient will be followed for a duration of 24 months.

Collecting survey about patients quality of life

Relapse Free SurvivalEach patient will be followed for a duration of 24 months.

Defined only for patients who achieve CR or CRi as the time elapsed between date of CR/CRi and date of disease relapse or death from any cause

Percentage of Patients Who Need TransfusionsUntil patient stops treatment (expected average of 8 months)

Number of transfusions per patient (red blood cells and or platelets)

Number of HospitalizationsEach patient will be followed for a duration of 24 months.

Hospitalizations (except schedule protocol visit during the study)

Progression Free Survival (PFS)Each patient will be followed for a duration of 24 months.

Defined as the time elapsed between randomization and resistant disease or relapse or death from any cause

Safety of GRASPA Adverse Events and Serious Adverse EventsEach patient will be followed for a duration of 24 months.

Number of incidences, type, severity and causality of adverse events / serious adverse events

Pharmacodynamic and Pharmacokinetic Parameters of GRASPAUntil patient stops treatment (expected average of 8 months)

Plasma concentrations of asparagine, aspartate, glutamine, glutamate, whole blood L- asparaginase activity

ImmunogenicityUntil patient stops treatment (expected average of 8 months)

Titer of anti L-asparaginase antibodies

Biomarker Cytogenetic Testing (Optional)Until patient stops treatment (expected average of 8 months)

Defined as cytogenetic biomarker testing

Trial Locations

Locations (21)

Hôpital Claude-Huriez

🇫🇷

Lille, Nord, France

CHU Estaing

🇫🇷

Clermont-ferrand, Puy De Dome, France

Institut Paoli Calmettes

🇫🇷

Marseille, Bouche Du Rhone, France

Hôpital JEAN MINJOZ

🇫🇷

Besancon, Doubs, France

Hôpital l'Archet 1

🇫🇷

Nice, Alpes Maritimes, France

Hopital Morvan

🇫🇷

Brest, Finistere, France

Hopital de Hautepierre

🇫🇷

Strasbourg, Haut Rhin, France

Hôpital Haut-Lévèque

🇫🇷

Pessac, Gironde, France

CHRU de Nîmes

🇫🇷

Nimes, Guard, France

Hopital De Purpan CHU Toulouse

🇫🇷

Toulouse, Haute Garonne, France

Hopital Région d'Annecy

🇫🇷

Pringy, Haute Savoie, France

Hôpital Saint Eloi

🇫🇷

Montpellier, Hérault, France

Institut de Cancérologie de la Loire

🇫🇷

Saint-priest-en-jarez, Loire, France

Hôtel Dieu - CHU de NANTES

🇫🇷

Nantes, Loire Atlantique, France

Chu D'Angers

🇫🇷

Angers, Maine Et Loire, France

Hopital de Brabois

🇫🇷

Vandoeuvre Les Nancy, Meurthe Et Moselle, France

hopital de Perpignan

🇫🇷

Perpignan, Pyrénées Orientales, France

Centre Léon Bérard

🇫🇷

Lyon, Rhone Alpes, France

Centre hospitalier Lyon Sud

🇫🇷

Pierre Benite, Rhone Alpes, France

Centre Henri Becquerel

🇫🇷

Rouen, Seine Maritime, France

Groupe Hospitalier Sud

🇫🇷

Amiens, Somme, France

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