NCT02696928

Brief Summary

Feasibility of methylene blue-based combination therapy in the radical treatment of adult patients with Plasmodium vivax malaria in Ethiopia: a randomised controlled pilot trial Study rationale: Elimination has become the goal of malaria programmes in an increasing number of endemic countries and regions. Primaquine (PQ) is the only registered drug for radical cure of Plasmodium vivax malaria. Prolonged PQ-based combination therapy carries safety concerns and resistance to chloroquine (CQ) and PQ is emerging. Methylene blue (MB) has recently been shown to be safe and effective in the treatment of Plasmodium falciparum malaria in West Africa. As there is evidence for MB probably being effective against the hypnozoites of Plasmodium vivax, MB-based drug regimens could be an alternative to PQ-based combination therapy in Plasmodium vivax malaria. Study objectives: The main objective of this trial is to study the feasibility of MB-based combination therapy in patients with uncomplicated P. vivax malaria in an endemic area of Ethiopia.

Trial Health

15
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Apr 2016

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 2, 2016

Completed
29 days until next milestone

First Posted

Study publicly available on registry

March 2, 2016

Completed
1 month until next milestone

Study Start

First participant enrolled

April 1, 2016

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2017

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2018

Completed
Last Updated

March 25, 2020

Status Verified

March 1, 2020

Enrollment Period

1.5 years

First QC Date

February 2, 2016

Last Update Submit

March 23, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Study feasibility

    Patient recruitment rates

    180 days

Secondary Outcomes (3)

  • Incidence of P. vivax

    180 days

  • Adverse events (AE) during total follow-up period

    180 days

  • Study costs

    180 days

Study Arms (3)

Artemeter-Lumefantrine (combination therapy)

OTHER

33 patients (standard of care)

Drug: Artemeter-Lumefantrine (combination therapy)

Artemeter-Lumefantrine and Primaquine (combination therapy)

ACTIVE COMPARATOR

33 patients

Drug: Artemeter-Lumefantrine and Primaquine (combination therapy)

Artemeter-Lumefantrine and MB (combination therapy)

EXPERIMENTAL

33 patients

Drug: Artemeter-Lumefantrine and MB (combination therapy)

Interventions

AL first 3 days MB next 14 days

Also known as: 3,7-bis(Dimethylamino)-phenothiazin-5-ium chloride, CID 6099
Artemeter-Lumefantrine and MB (combination therapy)

AL first 3 days

Also known as: AL
Artemeter-Lumefantrine (combination therapy)

AL first 3 days PQ next 14 days

Also known as: AL and PQ
Artemeter-Lumefantrine and Primaquine (combination therapy)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥18 years
  • Uncomplicated P. vivax monoinfection (asexual parasite count \>250/µl)
  • Axillary temperature ≥ 37.5°C or history of fever during last 48 hours
  • Ability to tolerate oral drug therapy
  • Written informed consent of patient
  • Permanent residence in the study area

You may not qualify if:

  • Therapy with an antimalarial (e.g. CQ, amodiaquine, pyrimethamine-sulfadoxine, quinine, any ACT) or an antibiotic which is effective against malaria parasites (e.g. doxycyclin, clindamycin, CoTrim) during last three weeks
  • Mixed malaria infection
  • Clinical danger signals (e.g. unable to stand or to sit, unable to drink, repeated vomiting, convulsions) or signs and symptoms of severe malaria (according to WHO definition)
  • Known other serious illnesses (e.g. cardiac, renal, hepatic, pulmonary disease, severe malnutrition, severe infectious diseases)
  • G6PD deficiency (\<60% activity, WHO classification 1-3)
  • Patients with known allergy to one or more of the study drugs
  • Hemoglobin value \<7 g/dL
  • Pregnancy or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Malaria, Vivax

Interventions

Combined Modality Therapy3,7-bis(diethylamino)phenothiazin-5-iumPrimaquine

Condition Hierarchy (Ancestors)

MalariaProtozoan InfectionsParasitic DiseasesInfectionsMosquito-Borne DiseasesVector Borne Diseases

Intervention Hierarchy (Ancestors)

TherapeuticsAminoquinolinesQuinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Olaf Müller, Prof. Dr.

    Heidelberg University

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

February 2, 2016

First Posted

March 2, 2016

Study Start

April 1, 2016

Primary Completion

October 1, 2017

Study Completion

January 1, 2018

Last Updated

March 25, 2020

Record last verified: 2020-03