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Effectiveness of OZ439 Against Early Plasmodium Falciparum Blood Stage Infection in Healthy Volunteers

Primary Purpose

Malaria

Status
Completed
Phase
Phase 1
Locations
Australia
Study Type
Interventional
Intervention
OZ439
Sponsored by
Medicines for Malaria Venture
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Malaria

Eligibility Criteria

18 Years - 45 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Volunteers will be adults (males or non pregnant females), aged between 18 and 45 years who do not live alone (from Day 1 until at least the end of the antimalarial drug treatment).
  • Volunteers must have a BMI within the range 18-30.
  • Volunteers must understand the procedures involved and agree to participate in the study by giving fully informed, written consent.
  • Be contactable and available for the duration of the trial (maximum of 4 weeks).
  • Volunteers must be non-smokers and in good health, as assessed during pre-study medical examination and by review of screening results.
  • Female participants of childbearing potential, should be surgically sterile or using an insertable, injectable, transdermal, or combination oral contraceptive approved by the US FDA or Therapeutic Goods Administration (TGA) combined with a barrier contraceptive through completion of the study and have negative results on a serum or urine pregnancy test done before administration of study medication.
  • Good peripheral venous access.

Exclusion Criteria:

  • History of malaria.
  • Travelled to or lived (2 weeks or more) in a malaria-endemic country during the past 12 months or planned travel to a malaria-endemic country during the course of the study.
  • Has evidence of increased cardiovascular disease risk (defined as greater than 10%, 5 year risk)
  • History of splenectomy.
  • History of a severe allergic reaction, anaphylaxis or convulsions following any vaccination or infusion.
  • Presence of current or suspected serious chronic diseases such as cardiac or autoimmune disease (HIV or other immunodeficiencies), insulin dependent diabetes, progressive neurological disease, severe malnutrition, acute or progressive hepatic disease, acute or progressive renal disease, psoriasis, rheumatoid arthritis, asthma, epilepsy or obsessive compulsive disorder, skin carcinoma excluding non-spreadable skin cancers such as basal cell and squamous cell carcinoma.
  • Known inherited genetic anomaly (known as cytogenetic disorders) e.g., Down's syndrome
  • Volunteers unwilling to defer blood donations to the Australian Red Cross Blood Service (ARCBS) for 6 months.
  • The volunteer has a diagnosis of schizophrenia, severe depression, bi-polar disease, or other severe (disabling) chronic psychiatric diagnosis. Participants who are receiving a single antidepressant drug and are stable for at least 3 months prior to enrollment without decompensating may be allowed to enroll in the study at the investigator's discretion. 10) Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5 degrees C) within the five days prior to study product administration.
  • Evidence of acute illness within the four weeks before trial prior to screening.
  • Significant intercurrent disease of any type, in particular liver, renal, cardiac, pulmonary, neurologic, rheumatologic, or autoimmune disease by history, physical examination, and/or laboratory studies including urinalysis.
  • Have ever received a blood transfusion.
  • Evidence of any condition that, in the opinion of the clinical investigator, might interfere with the evaluation of the study objectives or pose excessive risks to participants.

Sites / Locations

  • Q-Pharm

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

OZ439 100mg

OZ439 200mg

OZ439 500mg

Arm Description

OZ439 100mg Powder for Oral Suspension

OZ439 200mg Powder for Oral Suspension

OZ439 500mg Powder for Oral Suspension

Outcomes

Primary Outcome Measures

Individual Parasite Reduction Ratio (PRR)
PRR estimates the efficacy of an anti-malarial treatment and is the ratio of the parasite density between admission and 48 hours post-treatment. Individual subject PRR and corresponding 95% CI were calculated using the slope and corresponding standard error of mean (SE) of the optimal regression model.
500mg Cohort Mean Parasite Reduction Ratio (PRR)
OZ439 500mg individual subject PRR and corresponding 95% CI were used to calculate the OZ439 500mg cohort specific PRR and the corresponding 95% CI: the weighted average slope estimate and corresponding SE were calculated by the inverse-variance method.

Secondary Outcome Measures

OZ439 Cmax
OZ439 Maximum concentration (Cmax)
OZ439 AUC(0-144)
OZ439 Area under the curve to 144 hours

Full Information

First Posted
May 21, 2015
Last Updated
August 4, 2015
Sponsor
Medicines for Malaria Venture
Collaborators
Queensland Institute of Medical Research
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1. Study Identification

Unique Protocol Identification Number
NCT02453581
Brief Title
Effectiveness of OZ439 Against Early Plasmodium Falciparum Blood Stage Infection in Healthy Volunteers
Official Title
An Experimental Study To Characterize the Effectiveness of OZ439 Against Early Plasmodium Falciparum Blood Stage Infection In Healthy Volunteers
Study Type
Interventional

2. Study Status

Record Verification Date
August 2015
Overall Recruitment Status
Completed
Study Start Date
September 2012 (undefined)
Primary Completion Date
March 2013 (Actual)
Study Completion Date
March 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Medicines for Malaria Venture
Collaborators
Queensland Institute of Medical Research

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
A single centre, open, controlled study using Blood Stage Plasmodium falciparum challenge inoculum (BSPC) as a model to assess the effectiveness of three dose levels of the experimental anti-malarial product, OZ439.
Detailed Description
This was a single center study using blood stage Plasmodium falciparum challenge inoculum to characterize the effectiveness of OZ439 against early blood stage Plasmodium Falciparum infection. The study was conducted in three cohorts (n=8) using different doses of OZ439. Dose escalation took place after review of the observed OZ439 safety and pharmacodynamic outcome for the previous cohort by the Safety Review Team. Single doses of 100 mg, 200 mg and 500 mg were administered orally to participants in Cohort 1, Cohort 2 and Cohort 3 respectively.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Malaria

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
24 (Actual)

8. Arms, Groups, and Interventions

Arm Title
OZ439 100mg
Arm Type
Experimental
Arm Description
OZ439 100mg Powder for Oral Suspension
Arm Title
OZ439 200mg
Arm Type
Experimental
Arm Description
OZ439 200mg Powder for Oral Suspension
Arm Title
OZ439 500mg
Arm Type
Experimental
Arm Description
OZ439 500mg Powder for Oral Suspension
Intervention Type
Drug
Intervention Name(s)
OZ439
Intervention Description
OZ439 Powder for Oral Suspension
Primary Outcome Measure Information:
Title
Individual Parasite Reduction Ratio (PRR)
Description
PRR estimates the efficacy of an anti-malarial treatment and is the ratio of the parasite density between admission and 48 hours post-treatment. Individual subject PRR and corresponding 95% CI were calculated using the slope and corresponding standard error of mean (SE) of the optimal regression model.
Time Frame
48 hours
Title
500mg Cohort Mean Parasite Reduction Ratio (PRR)
Description
OZ439 500mg individual subject PRR and corresponding 95% CI were used to calculate the OZ439 500mg cohort specific PRR and the corresponding 95% CI: the weighted average slope estimate and corresponding SE were calculated by the inverse-variance method.
Time Frame
48 hours
Secondary Outcome Measure Information:
Title
OZ439 Cmax
Description
OZ439 Maximum concentration (Cmax)
Time Frame
Pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
Title
OZ439 AUC(0-144)
Description
OZ439 Area under the curve to 144 hours
Time Frame
Pre-dose, and 0.25, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
45 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Volunteers will be adults (males or non pregnant females), aged between 18 and 45 years who do not live alone (from Day 1 until at least the end of the antimalarial drug treatment). Volunteers must have a BMI within the range 18-30. Volunteers must understand the procedures involved and agree to participate in the study by giving fully informed, written consent. Be contactable and available for the duration of the trial (maximum of 4 weeks). Volunteers must be non-smokers and in good health, as assessed during pre-study medical examination and by review of screening results. Female participants of childbearing potential, should be surgically sterile or using an insertable, injectable, transdermal, or combination oral contraceptive approved by the US FDA or Therapeutic Goods Administration (TGA) combined with a barrier contraceptive through completion of the study and have negative results on a serum or urine pregnancy test done before administration of study medication. Good peripheral venous access. Exclusion Criteria: History of malaria. Travelled to or lived (2 weeks or more) in a malaria-endemic country during the past 12 months or planned travel to a malaria-endemic country during the course of the study. Has evidence of increased cardiovascular disease risk (defined as greater than 10%, 5 year risk) History of splenectomy. History of a severe allergic reaction, anaphylaxis or convulsions following any vaccination or infusion. Presence of current or suspected serious chronic diseases such as cardiac or autoimmune disease (HIV or other immunodeficiencies), insulin dependent diabetes, progressive neurological disease, severe malnutrition, acute or progressive hepatic disease, acute or progressive renal disease, psoriasis, rheumatoid arthritis, asthma, epilepsy or obsessive compulsive disorder, skin carcinoma excluding non-spreadable skin cancers such as basal cell and squamous cell carcinoma. Known inherited genetic anomaly (known as cytogenetic disorders) e.g., Down's syndrome Volunteers unwilling to defer blood donations to the Australian Red Cross Blood Service (ARCBS) for 6 months. The volunteer has a diagnosis of schizophrenia, severe depression, bi-polar disease, or other severe (disabling) chronic psychiatric diagnosis. Participants who are receiving a single antidepressant drug and are stable for at least 3 months prior to enrollment without decompensating may be allowed to enroll in the study at the investigator's discretion. 10) Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5 degrees C) within the five days prior to study product administration. Evidence of acute illness within the four weeks before trial prior to screening. Significant intercurrent disease of any type, in particular liver, renal, cardiac, pulmonary, neurologic, rheumatologic, or autoimmune disease by history, physical examination, and/or laboratory studies including urinalysis. Have ever received a blood transfusion. Evidence of any condition that, in the opinion of the clinical investigator, might interfere with the evaluation of the study objectives or pose excessive risks to participants.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
James McCarthy, Pr
Organizational Affiliation
Q-Pharm Pty Limited
Official's Role
Principal Investigator
Facility Information:
Facility Name
Q-Pharm
City
Herston
State/Province
Queensland
ZIP/Postal Code
QLD 4006
Country
Australia

12. IPD Sharing Statement

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Effectiveness of OZ439 Against Early Plasmodium Falciparum Blood Stage Infection in Healthy Volunteers

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