Study Evaluating the Efficacy of Eculizumab in the Treatment of Gemcitabine-induced Thrombotic Microangiopathies

Inclusion Criteria: * 1\. Age ≥ 18 years old 2. Previous treatment with gemcitabine within the last 18 months (duration of treatment ≥ 3 consecutive months and cumulative dose should be ≥ 10 grams). 3. Neoplasia in remission or not in remission but with an estimated life expectancy \> 6 months 4. Acute renal failure defined by 1 of the following 2 criteria : Creatinine \> 2 times baseline creatinine and/or diuresis \< 0.5 ml/kg/h for 12 hours. 5. Clinical and biological criteria for thrombotic microangiopathy: mechanical hemolytic anemia and/or tThrombocytopeniaPatient affiliated with a social security system, 6. Adult patient or representative of the adult patient who has read and understood the information letter and signed the consent form. 7. Woman of childbearing age with effective contraception as defined by the WHO (estrogen-progestin or intrauterine device or tubal ligation) for more than one month and a negative -HCG pregnancy test at baseline, for the duration of the study and for at least 5 months after the end of the treatment, or Postmenopausal woman (non-medically induced amenorrhea for at least 12 months prior to the baseline visit) or For men, use of protection during sexual intercourse for the duration of the study and for at least 60 days after the end of study treatment Exclusion Criteria: * 1\. Progressive neoplasia with a life expectancy of \<6 months 2. Patient with a contraindication to the administration of the treatment experienced: SOLIRIS® 300 mg…