Evaluation of the Safety and Pharmacokinetics of a Single Oral Dose of EDP-788
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ClinicalTrials.gov Identifier: NCT01999725 |
Recruitment Status :
Completed
First Posted : December 3, 2013
Last Update Posted : January 9, 2015
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The primary objective of the study is to determine the safety of single doses of orally administered EDP-788.
Secondary objectives of the study are:
- To describe the pharmacokinetics of EDP-788 (and its metabolite EDP-322) after single doses of orally administered drug
- To estimate the bioavailability of EDP-788 capsules relative to an oral liquid suspension
- To estimate the effect of co-administration of food on the absorption of EDP-788
Condition or disease | Intervention/treatment | Phase |
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Safety in Normal Volunteers | Drug: EDP-788 Drug: Placebo | Phase 1 |
Subjects are enrolled in successive cohorts and are randomized to receive either EDP-788 or placebo capsules. If the safety profile of the drug is acceptable, based upon review of blinded data, the cohort receiving the next higher dose will be treated. Up to 8 cohorts will be recruited. All subjects receive a single dose of study drug (EDP-788 or placebo).
Subjects in Cohort C will receive a second single dose of study drug (EDP-788 or placebo) approximately 2 weeks after the first dose. The second dose will be administered as a liquid suspension rather than as a capsule formulation. The purpose of the second dose is to estimate the bioavailability of the capsule formulation relative to the suspension.
Subjects in Cohort E will receive a second single dose of study drug (EDP-788 or placebo) approximately 2 weeks after the first does. The second dose will be administered with a standard test meal. The purpose of the second dose is to estimate the effect of food on absorption of EDP-788.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 80 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-Blind, Placebo-Controlled, Ascending One-Day (Single and Divided Dose) Safety, Tolerability, and Pharmacokinetic Study of EDP-788 in Healthy Adult Volunteers |
Study Start Date : | January 2014 |
Actual Primary Completion Date : | September 2014 |
Actual Study Completion Date : | September 2014 |
Arm | Intervention/treatment |
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Experimental: EDP-788
Single doses with dose escalation to continue in successive cohorts
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Drug: EDP-788
EDP-788 Capsules and matching placebo capsules. EDP-788 Liquid Suspension and matching placebo. All interventions are given as single doses |
Placebo Comparator: Placebo
Single dose with matching placebo
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Drug: Placebo
Matching placebo capsules or matching suspension |
- Incidence and severity of adverse events [ Time Frame: From time of dosing to 8 - 10 days after receiving study drug ]
- Changes from baseline in laboratory values and vital signs [ Time Frame: From time of dosing to 8 - 10 days after receiving study drug ]
- Pharmacokinetic parameters [ Time Frame: From time of dosing to 3 days after receiving study drug ]

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Ages Eligible for Study: | 18 Years to 45 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Key Inclusion Criteria:
- In good general health
- BMI between 18 - 32 kg/m2
- Women must be of non-childbearing potential (surgically sterilized)
- Normal electrocardiogram
- Willing to abstain from strenuous physical exercise starting 3 days prior to admission to the study clinic through the 8 - 10 day post-dosing visit
Key Exclusion Criteria:
- Hypersensitivity to macrolide antibiotics
- Abnormal laboratory values
- History of gastrointestinal surgery which may interfere with drug absorption
- Active Hepatitis B, Hepatitis C, or HIV infection
- Use of prescription or non-prescription drugs within 14 days of study drug administration
- Use of nicotine within 3 months of study drug administration

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01999725
United States, Texas | |
PPD Phase I Clinic | |
Austin, Texas, United States, 78744 |
Principal Investigator: | Theresa T Pham, MD | PPD Phase I Clinic |
Responsible Party: | Enanta Pharmaceuticals |
ClinicalTrials.gov Identifier: | NCT01999725 |
Other Study ID Numbers: |
EDP788-001 |
First Posted: | December 3, 2013 Key Record Dates |
Last Update Posted: | January 9, 2015 |
Last Verified: | January 2015 |
Normal Volunteers, Safety, Pharmacokinetics |