NCT03517462

Brief Summary

The DOLF Ocular Changes after Ivermectin study will investigate the kinetics of O. volvulus microfilaria (Mf) in the eye following treatment with ivermectin. The primary objective is to determine the proportion of participants with complete Mf clearance from the eye at 3 and 6 months following treatment with ivermectin (IVM).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
231

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Aug 2018

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 23, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

May 7, 2018

Completed
3 months until next milestone

Study Start

First participant enrolled

August 6, 2018

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 23, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 23, 2019

Completed
Last Updated

December 31, 2020

Status Verified

December 1, 2020

Enrollment Period

1 year

First QC Date

April 23, 2018

Last Update Submit

December 30, 2020

Conditions

Keywords

mass drug administrationophthalmology

Outcome Measures

Primary Outcomes (2)

  • Number of participants with complete microfilaria clearance from the eye at 3 months

    Microfilaria in the anterior chamber of the eye will be counted during slit lamp examination at time of assessment. Participants without Mf in the eye will be considered clear of infection in the eye.

    3 months following treatment

  • Number of participants with complete microfilaria clearance from the eye at 6 months

    Microfilaria in the anterior chamber of the eye will be counted during slit lamp examination at time of assessment. Participants without Mf in the eye will be considered clear of infection in the eye.

    6 months following treatment

Secondary Outcomes (6)

  • The change from baseline in the number of microfilaria detected in the skin at 3 months

    baseline, and 3 months following treatment

  • The change from baseline in the number of microfilaria detected in the skin at 6 months

    baseline, and 6 months following treatment

  • The change from baseline in the number of microfilaria detected in the eye at 3 months

    baseline, 3 months following treatment

  • The change from baseline in the number of microfilaria detected in the eye at 6 months

    baseline, 6 months following treatment

  • Number of participants with complete microfilaria clearance from the skin at 3 months

    3 months following treatment

  • +1 more secondary outcomes

Other Outcomes (3)

  • Assess the utility of optical coherence tomography for evaluating the presence and clearance of Mf in the anterior and posterior segments of the eye.

    baseline, 3 and 6 months following treatment

  • Evaluate ocular changes between baseline and 3 months following ivermectin treatment using OCT

    baseline, and 3 months following treatment

  • Evaluate ocular changes between baseline and 6 months following ivermectin treatment using OCT

    baseline, and 6 months following treatment

Study Arms (1)

Ivermectin

EXPERIMENTAL

Single dose directly observed treatment with Ivermectin 3Mg Tab (150 ug/kg) delivered orally.

Drug: Ivermectin 3Mg Tab

Interventions

ivermectin tablet

Ivermectin

Eligibility Criteria

Age16 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Have at least 1 palpable subcutaneous nodule (onchocercoma) and ≥ 1 Mf/mg of skin (by skin snip)

You may not qualify if:

  • Pregnancy and breastfeeding mothers within 1 month of giving birth
  • Have base line eye diseases including glaucoma, uveitis, severe keratitis, and/or cataracts that interfere with visualization of the posterior segment of the eye.
  • Prior allergic / hypersensitivity reactions or intolerance to ivermectin
  • Treatment with ivermectin in the past 6 (six) months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Health and Allied Sciences

Hohoe, Ghana

Location

Related Publications (42)

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MeSH Terms

Conditions

Onchocerciasis

Interventions

Ivermectin

Condition Hierarchy (Ancestors)

FilariasisSpirurida InfectionsSecernentea InfectionsNematode InfectionsHelminthiasisParasitic DiseasesInfectionsSkin Diseases, ParasiticSkin Diseases, InfectiousSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

MacrolidesPolyketidesLactonesOrganic Chemicals

Study Officials

  • Gary Weil, MD

    Washington University School of Medicine

    PRINCIPAL INVESTIGATOR
  • Christopher King, MD PhD

    Case Western Reserve University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: Participants are all given a standard treatment (ivermectin) for onchocerciasis.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 23, 2018

First Posted

May 7, 2018

Study Start

August 6, 2018

Primary Completion

August 23, 2019

Study Completion

August 23, 2019

Last Updated

December 31, 2020

Record last verified: 2020-12

Data Sharing

IPD Sharing
Will share

Datasets used for published results will be shared publically through a journal or other open source data repository so that the broader scientific community can access it. Only de-identified data will be shared publicly.

Locations