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临床试验/NL-OMON51062
NL-OMON51062已完成不适用

Safety and preliminary protective efficacy of genetically attenuated Pf*mei2 (GA2) malaria parasites in healthy Dutch volunteers - GA2

eids Universitair Medisch Centrum0 个研究点目标入组 51 人开始时间: 待定最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
51

研究概览

简要总结

暂无简介。

研究设计

研究类型
Interventional

入排标准

年龄范围
18 至 64(—)

入选标准

  • 1. Subject is aged >= 18 and <= 35 years and in good health.
  • 2. Subject has adequate understanding of the procedures of the study and agrees
  • to abide strictly thereby.
  • 3. Subject is able to communicate well with the investigator, is available to
  • attend all study visits.
  • 4. Furthermore, the subject will remain within the Netherlands from day -1 till
  • day +28 after each parasite exposure. After exposure to parasites, subjects
  • have to be reachable by phone (24/7) from day -1 until day 35.
  • 5. Subject agrees that his/her general practitioner (GP) will be informed about
  • participation in the study.
  • 6. Subject agrees to refrain from blood donation to Sanquin or for other
  • purposes throughout the study period and for a defined period thereafter
  • according to Sanquin guidelines (three years minimum, depending on serology).
  • 7. Non-pregnant, non-lactating, fertile (i.e., have a uterus and are neither
  • surgically sterilized nor post-menopausal) female subjects agree to use
  • adequate contraception and to not breastfeed for the duration of study.
  • 8. Subject agrees to refrain from intensive physical exercise (disproportionate
  • to the subjects* usual daily activity or exercise routine) for twenty-one days
  • following each immunization and during the malaria challenge period.
  • 9. Subject signs informed consent.

排除标准

  • 1. Any history, or evidence at screening, of clinically significant symptoms,
  • physical signs or abnormal laboratory values suggestive of systemic conditions,
  • such as cardiovascular, pulmonary, renal, hepatic, neurological,
  • dermatological, endocrine, malignant, haematological, infectious,
  • immune-deficient, psychiatric or other disorders, which could compromise the
  • health of the volunteer during the study or interfere with the interpretation
  • of the study results. These include, but are not limited to, any of the
  • a. Body weight <50 kg or Body Mass Index (BMI) <18.0 or >30.0 kg/m2 at
  • b. A heightened risk of cardiovascular disease, defined as:
  • i. An estimated ten-year risk of fatal cardiovascular disease of >=5% at
  • screening, as determined by the Systematic Coronary Risk Evaluation (SCORE).
  • ii. History, or evidence at screening, of clinically significant arrhythmia*s,
  • prolonged QT-interval or other clinically relevant ECG abnormalities; or
  • iii. A positive family history of cardiac events in first- or second-degree
  • relatives (according to the system used in medical genetics) <50 years old.
  • c. Functional asplenia, sickle cell trait/disease, thalassemia trait/disease or
  • G6PD deficiency.
  • d. History of epilepsy in the period of five years prior to study onset, even
  • if no longer on medication.
  • e. Positive HIV, HBV or HCV screening tests.
  • f. Chronic use of i) immunosuppressive drugs, ii) antibiotics, iii) or other
  • drugs that might have an influence on the immune system (excluding inhaled and
  • topical corticosteroids and incidental use of oral anti-histamines), within
  • three months prior to study onset or expected use of such during the study
  • g. History of malignancy of any organ system (other than localized basal cell
  • carcinoma of the skin), treated or untreated, within the past five years.
  • h. Any history of treatment for severe psychiatric disease by a psychiatrist in
  • the past year.
  • i. History of drug or alcohol abuse interfering with normal social function in
  • the period of one year prior to study onset, positive urine toxicology test for
  • cocaine or amphetamines at screening or prior to exposure to parasites or
  • positive urine toxicology test for cannabis prior to exposure to parasites.
  • 2. For female subjects: breastfeeding, or positive urine pregnancy test at
  • screening or prior to immunization or prior to CHMI.
  • 3. Any history of malaria, positive serology for Pf, or previous participation
  • in any malaria (vaccine) study or CHMI.
  • 4. Known hypersensitivity to or contra-indications (including co-medication)
  • for use of atovaquone/proguanil or artemether/lumefantrine, or history of
  • severe (allergic) reactions to mosquito bites.
  • 5. Receipt of any vaccinations in the three months prior to the start of the
  • study or plans to receive any other vaccinations during the study period or up
  • to eight weeks thereafter. Exceptions are made for influenza vaccination and,
  • if it becomes available during the study period, for vaccination against the
  • novel coronavirus SARS-COV2.
  • 6. Participation in any other clinical study in the 30 days prior to the start
  • of the study or during the study period.
  • 7. Being an employee or student of the department of Parasitology, Medical
  • Microbiology or Infectious Diseases of the LUMC or RUMC.
  • 8. Any other condition or s

研究者

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