Treatment of Familiar Lymphohistiocytosis (C-HLH)
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|ClinicalTrials.gov Identifier: NCT02472054|
Recruitment Status : Recruiting
First Posted : June 15, 2015
Last Update Posted : December 21, 2017
|Condition or disease||Intervention/treatment||Phase|
|Hemophagocytic Lymphohistiocytosis (HLH)||Drug: Alemtuzumab Drug: Methyl Prednisolone (MP) Drug: Cyclosporin A (CSA)||Phase 1 Phase 2|
The hemophagocytic lymphohistiocytosis (HLH) or lymphohistiocytic activation syndrome is an inflammatory condition caused by a uncontrolled proliferation of activated lymphocytes and macrophages secreting an excess of inflammatory cytokines. Familial hemophagocytic lymphohistiocytosis (FHL) is a rare disorder of the immune system, which is invariably fatal when untreated. Treatment requires the achievement of remission of HLH prior to allogeneic hematopoietic stem cell transplantation, the only curative therapy to date.
Despite significant progress in the treatment, mortality remains high and an important number of patients will die before being eligible for HSCT.
A better understanding of the pathophysiology of FHL has opened new avenues for immunotherapy. Based on previous observations concerning the utilization of Anti-thymoglobulins (ATG) for the treatment of patients with FHL, the protocol propose a new therapeutic strategy using Alemtuzumab in association with steroids as first line treatment in FHL. This proposition is based on the hypothesis that Alemtuzumab, capable of killing T lymphocytes efficiently in vivo, should be better tolerated than ATG. In fact, in contrast to the mechanism of action of ATG, Alemtuzumab does not activate T lymphocytes.
A better tolerance and efficacy of Alemtuzumab is expected in the treatment of the hemophagocytic lymphohistiocytic syndrome. This may have a positive impact not only on survival until HSCT, but also on overall survival and quality of life with regard to long-term neurological sequelae.
This is a multicenter, open, phase I/II, non-comparative, non randomized study. Patients are recruited by the investigators during hospitalization for a first episode of lymphohistiocytic activation syndrome requiring specific treatment.
Several visits (including the final visit) are scheduled within the trial over a period of approximately 10 months for all patients, from the signature of the consent up to 6 months after hematopoietic stem cell transplantation.
The recruitment period will be 30 months; the total period of the study is 40 months. The treatment consists in an intravenous administration of CAMPATH®.
For the research purpose, investigators will collect specific samples for:
- biobank (Cytokine dosage) at the inclusion visit and the day prior to the conditioning;
- pharmacokinetics of CAMPATH® : at every cure of CAMPATH® and every week. Also diagnostic lumbar puncture at the inclusion visit, day 14 is required to document the response to treatment and to determine the result of the therapeutic care.
The efficacy of the treatment will be measured to Day14, Day21 and Day28. All adverse events must be reported in the e-Case Report Form (e-CRF)
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||30 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||First Line Treatment of Familiar Lymphohistiocytosis by Alemtuzumab (CAMPATH®)|
|Actual Study Start Date :||June 29, 2015|
|Estimated Primary Completion Date :||October 2019|
|Estimated Study Completion Date :||April 2020|
Experimental: hemophagocytic lymphohistiocytosis (HLH)
Other Name: CAMPATH®
Drug: Methyl Prednisolone (MP)
Drug: Cyclosporin A (CSA)
- Number of surviving patients until HSCT [ Time Frame: Day 1 until transplantation, up to 4 months ]
- Number of complete remissions following treatment [ Time Frame: Day 14, Day 21, Day 28 ]To assess the efficacy of the Alemtuzumab
- Time of delay between the first administration of Alemtuzumab and complete remission [ Time Frame: Day 14, Day 21, Day 28 ]To assess the efficacy of the Alemtuzumab
- Dosage of Alemtuzumab [ Time Frame: Day1-3, Day7, Day15-16, Day22-23, Day28 ]Pharmacokinetic
- Number of side effects [ Time Frame: Day 1 until transplantation, up to 4 months ]To assess the tolerance of the Alemtuzumab
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02472054
|Contact: Despina MOSHOUS, MD, PhD||+33 (0) 1 44 49 48 email@example.com|
|Contact: Valérie JOLAINE, Master||+33 (0) 1 42 19 28 firstname.lastname@example.org|
|Hôpital Necker-Enfants Malades||Recruiting|
|Paris, France, 75015|
|Contact: Despina MOSHOUS, MD, PhD +33 (0) 1 44 49 48 23 email@example.com|
|Contact: Valérie JOLAINE, Master +33 (0) 1 42 19 28 79 firstname.lastname@example.org|
|Study Director:||Alain FISCHER, MD, PhD||Assistance Publique - Hôpitaux de Paris|