Development of AWZ1066S, a Small Molecule Anti-Wolbachia Candidate Macrofilaricide Drug

• Status: Not yet recruiting
• Trial end date: 2022-07-31
• Target enrollment: 0
• Participant gender: All

Summary

Lymphatic filariasis and onchocerciasis are a group of neglected tropical diseases caused by the transmission of worm larvae (microfilaria) by biting insects. Once a human is infected, the larvae mature into adult worms that release huge numbers of larvae into the lymphatics for 5-15 years. The larvae cause tissue damage resulting in the disabling diseases of elephantiasis (gross leg and scrotal swelling) and river blindness. These diseases affect 160 million people and are acknowledged major public health problems in the tropics. Current treatments mainly target the larvae but not the adult worms that live for years, meaning that repeated courses of treatment over many years are needed. These repeated courses are usually delivered at population level in the form of mass drug administration programmes.

For the adult worms to be able to grow, reproduce and infect more humans they are dependent on a bacterium which lives inside them. This bacterium (Wolbachia) is not naturally found in humans. Some drugs are able to target Wolbachia, however they are unsuitable for mass drug administration programmes because they have to be given for 4-6 weeks and cannot be used in children or pregnant women.

AWZ1066S is a novel drug developed in Liverpool that has been shown in experimental models to target Wolbachia and indirectly kill the adult parasitic worms after a 7 day course. After extensive safety testing in animals we are conducting a Phase 1, first in human study, to assess the safety, tolerability and pharmacokinetics of ascending single and multiple oral doses of AWZ1066S in healthy volunteers. The study is a single centre study, will last approximately 1 year and will take place in a dedicated Phase 1 trial unit. Depending on which group they are enrolled into, participants will take either one dose, two doses or seven doses and their involvement will last between 38 and 45 days. Participants will be closely monitored for adverse effects.

• Phase: Phase 1
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Liverpool School of Tropical Medicine
• Collaborators: Covance; Eisai Limited; Liverpool University Hospitals NHS Foundation Trust; Subiaco Associates Limited; Sylexis Limited

Criteria

Inclusion Criteria:

1. Healthy male and female participants 2 aged 18-65 years 3 BMI 18.0-35.0 kg/m2, maximum weight 100 kg 4 in good health, as determined by: 4a medical history, 4b physical examination, 4c vital signs assessment, 4d 12-lead ECG 4e clinical laboratory evaluations 5 provision of informed consent and abide by study restrictions

Exclusion Criteria:

1. not willing to abide by contraception restrictions

2. donated blood in previous 3 months, plasma previous 7 days, platelets previous 6 weeks

3. consumption >14 units of alcohol/week

4. tobacco smoking

5. concomitant medication, apart from treatments for mild asthma, eczema, contraception, paracetamol

6. herbal remedies

7. history of anaphylaxis, drug allergy, clinically significant atopic condition as determined by Investigator

8. clinically significant medical history, as determined by the Investigator

9. positive hepatitis, HIV serology

10. live vaccine in previous 3 months, Covid-19 vaccine prior 14 days

11. Participants who, in the opinion of the Investigator, should not participate in this study.