UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000053873
Receipt number R000061498
Scientific Title Evaluation of the protective efficacy of OlysetPlus ceiling net on reducing malaria incidence in children in Ndhiwa Sub-County, Kenya: study protocol for a cluster-randomized controlled trial
Date of disclosure of the study information 2024/03/15
Last modified on 2024/03/15 14:23:41

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Evaluation of the protective efficacy of OlysetPlus ceiling net on reducing malaria incidence in children in Ndhiwa Sub-County, Kenya: study protocol for a cluster-randomized controlled trial

Acronym

ICNGLR

Scientific Title

Evaluation of the protective efficacy of OlysetPlus ceiling net on reducing malaria incidence in children in Ndhiwa Sub-County, Kenya: study protocol for a cluster-randomized controlled trial

Scientific Title:Acronym

ICNGLR

Region

Africa


Condition

Condition

malaria

Classification by specialty

Infectious disease

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

To assess the effect of OlysetPlus ceiling nets on malaria burden in Ndhiwa Sub-County, Kenya

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The study has four research domains: epidemiology, entomology, social aspects, and cost-effectiveness.
For the epidemiology domain, the primary objective is to determine the protective efficacy of OlysetPlus ceiling net in reducing malaria clinical incidence in children 6 months to 14 years old over 18 months post-intervention.
For the entomology domain, the primary objective is to evaluate the impact of OlysetPlus ceiling nets on the mosquito density of the primary malaria vector species.
For the social science domain, the primary objective is to assess the determinants of social acceptability of the OlysetPlus ceiling net in both the intervention and control arms.
For the cost-effectiveness domain, the primary objective is to determine the incremental cost-effectiveness ratios (ICERs) of adding the OlysetPlus ceiling net to existing malaria control interventions under field trial conditions.

Key secondary outcomes

For the epidemiology domain, 1) to determine the protective efficacy of OlysetPlus ceiling nets in reducing Plasmodium infection prevalence by PCR in all age groups at 6-, 12-, and 18- months post-intervention; (2) to determine the protective efficacy of OlysetPlus ceiling nets against the time-to-first Plasmodium infection; (3) to determine the spillover effects of OlysetPlus ceiling nets in reducing Plasmodium infection prevalence in all age groups at 6-, 12-, and 18-months post-intervention; and (4) to determine the protective efficacy of OlysetPlus ceiling net in reducing Plasmodium infection incidence in children 6 months to 14 years old over 18 months post-intervention.
For the entomology domain, (1) to determine the impact of OlysetPlus ceiling nets on entomological inoculation rate (EIR) and (2) to determine the prevalence of knockdown resistance (kdr) mutations in vectors.
For the social science domain, (1) to determine the feasibility of installing the OlysetPlus ceiling and  (2) to determine the appropriateness of fit of the OlysetPlus ceiling net in the context of households in Ndhiwa Sub-County.
For the cost-effectiveness domain, (1) to establish the relative contribution to costs of the distinct programmatic elements and identify the inputs that contribute the most to overall costs, and (2) to estimate the potential cost of providing OlysetPlus ceiling net at a larger scale over 3 and 5 years under operational scenarios.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Cluster

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Device,equipment

Interventions/Control_1

Intervention: OlysetPlus ceiling nets are installed permanently in houses randomly assigned to the intervention arm.

Interventions/Control_2

Control: No OlysetPlus ceiling nets are installed in houses randomly assigned to the control arm.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Households with at least one permanent resident

Key exclusion criteria

(1) Temporary residents; (2) residents living in temporary structures; (3) residents planning to leave or stay outside their permanent home for longer than one month over the study period (12 months)

Target sample size

22000


Research contact person

Name of lead principal investigator

1st name Akira
Middle name
Last name Kaneko

Organization

Osaka Metropolitan University

Division name

Graduate School of Medicine

Zip code

545-8585

Address

1-4-3 Asahi-machi, Abeno-Ku, Osaka, Japan

TEL

+81666453761

Email

akirakaneko555@gmail.com


Public contact

Name of contact person

1st name Yongra
Middle name
Last name Ko

Organization

Tohoku University

Division name

Graduate school of medicine

Zip code

9800872

Address

2-1, Seiryomachi, Aoba, Sendai, Miyagi

TEL

+81227178006

Homepage URL


Email

yurako0603@gmail.com


Sponsor or person

Institute

Osaka Metropolitan University Graduate School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Japan International Cooperation Agency-Science and Technology Research Partnership for Sustainable Development (JICA-SATREPS)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

Mount Kenya Unversity

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Mount Kenya University

Address

P. O. Box 342-01000, Thika, Kenya

Tel

+254720790796

Email

info@mku.ac.ke


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2024 Year 03 Month 15 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2024 Year 03 Month 01 Day

Date of IRB

2024 Year 03 Month 14 Day

Anticipated trial start date

2024 Year 04 Month 08 Day

Last follow-up date

2025 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2024 Year 03 Month 15 Day

Last modified on

2024 Year 03 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061498


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name