Study Evaluating Orally Administered Moxidectin In Subjects With Onchocerca Volvulus Infection

NCT ID: NCT00300768

Last Updated: 2022-12-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

172 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-09-06

Study Completion Date

2009-11-29

Brief Summary

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The primary purpose of this study was to determine the safety and tolerability of moxidectin in subjects infected with Onchocerca volvulus (a parasitic worm).

Detailed Description

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This was a phase 2, randomized, ivermectin-controlled, double-blind, single-ascending-dose, parallel design, inpatient/outpatient study of moxidectin administered to subjects of both sexes with different degrees of severity of O. volvulus infection. The study was conducted at a single site in Ghana.

Secondary objects are to determine the pharmacokinetics of moxidectin, to obtain initial indication of the efficacy in terms of long term effect on skin microfilaria levels and an indication of the effect on the macrofilaria that may underlie the effect on skin microfilaria levels.

Subjects were enrolled in consecutive cohorts to receive a single oral dose of 2 mg, 4 mg or 8 mg or moxidectin or ivermectin 150 µg/kg by severity of infection, based on the mean of the skin microfilariae densities at each of 4 body locations, both iliac crests and calves.

Conditions

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Onchocerciasis

Keywords

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onchocerciasis onchocerca volvulus river blindness ivermectin moxidectin

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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2 mg moxidectin

2 mg moxidectin (Dose-escalation 1st step)

Group Type EXPERIMENTAL

2 mg moxidectin

Intervention Type DRUG

Single-dose, tablet encapsulated for blinding

Ivermectin 150 mcg/kg

Active comparator arm (ivermectin 150 mcg/kg).

Group Type ACTIVE_COMPARATOR

ivermectin 150 mcg/kg

Intervention Type DRUG

Single-dose, tablets encapsulated for blinding

4 mg moxidectin

4 mg moxidectin (dose escalation second step)

Group Type EXPERIMENTAL

4 mg moxidectin

Intervention Type DRUG

Single dose, tablets encapsulated for blinding

8 mg moxidectin

8 mg moxidectin (dose escalation third step)

Group Type EXPERIMENTAL

8 mg moxidectin

Intervention Type DRUG

single dose, tablets encapsulated for blinding

Interventions

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2 mg moxidectin

Single-dose, tablet encapsulated for blinding

Intervention Type DRUG

ivermectin 150 mcg/kg

Single-dose, tablets encapsulated for blinding

Intervention Type DRUG

4 mg moxidectin

Single dose, tablets encapsulated for blinding

Intervention Type DRUG

8 mg moxidectin

single dose, tablets encapsulated for blinding

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Written, signed (or thumb-printed), and dated informed consent
2. Aged 18 to 60 years, inclusive
3. Body weight ≥ 40 kg for women and ≥ 45 kg for men
4. Nonpregnant, nonbreastfeeding women. Women of child bearing potential must agree to use birth control during the first 150 days after treatment.
5. Healthy, as determined by a physician on the basis of a physical examination, ECG, and a thorough review of the medical history and clinical laboratory results
6. Adequate hematologic, renal, and hepatic function
7. Skin microfilarial density within the required range for the cohort

Exclusion Criteria

1. Participation in any studies other than purely observational ones, within 4 weeks before test article administration.
2. Any vaccination within 4 weeks before test article administration
3. Acute infection requiring therapy within the last 10 days before test article administration
4. Administration of any medication (with the exception of medication required to treat any reactions during the screening fluorescein angiography (chlorpheniramine) or paracetamol) or herbal preparation within 10 days prior to test article administration or any condition currently requiring regular medication
5. Clinically significant ECG abnormalities or history of cardiac abnormality
6. Past or current history of neurological or neuropsychiatric disease or epilepsy
7. Subjects with orthostatic hypotension at the screening evaluation
8. History of drug or alcohol abuse or regular use of ≥ 3 cigarettes per day
9. Use of alcohol or other drugs of abuse within 72 hours before test article administration
10. Any condition, in the investigator's opinion, that places the subject at undue risk
11. Subjects who have donated blood within 8 weeks before study entry
12. Subjects with ocular onchocerciasis in cohorts intended to enroll subjects with mild infection. Ocular onchocerciasis is defined by the presence of live or dead microfilariae, onchocercal punctate opacities, onchocercal lesions of the posterior segment or lesions that mimic those seen in onchocerciasis.
13. Subjects with hyperreactive onchodermatitis
14. Antifilarial therapy within the previous 5 years
15. Coincidental infection with Loa Loa
16. Female subjects of childbearing potential with a contraindication to DMPA if not on Norplant
17. Any other condition which the investigator feels would exclude the subject from the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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World Health Organization

OTHER

Sponsor Role collaborator

Medicines Development for Global Health

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nicholas Opoku, MD

Role: PRINCIPAL_INVESTIGATOR

Onchocerciasis Chemotherapy Research Center, Hohoe, Ghana

Locations

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Onchocerciasis Chemotherapy Research Center

Hohoe, Volta Region, Ghana

Site Status

Countries

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Ghana

References

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Awadzi K, Opoku NO, Attah SK, Lazdins-Helds J, Kuesel AC. A randomized, single-ascending-dose, ivermectin-controlled, double-blind study of moxidectin in Onchocerca volvulus infection. PLoS Negl Trop Dis. 2014 Jun 26;8(6):e2953. doi: 10.1371/journal.pntd.0002953. eCollection 2014 Jun.

Reference Type RESULT
PMID: 24968000 (View on PubMed)

Related Links

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Other Identifiers

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B1751004

Identifier Type: OTHER

Identifier Source: secondary_id

OCRC 33

Identifier Type: OTHER

Identifier Source: secondary_id

3110A1-200-GH

Identifier Type: -

Identifier Source: org_study_id