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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00907803
Other study ID # SIGA-246-004
Secondary ID DMID 08-0055
Status Completed
Phase Phase 2
First received May 21, 2009
Last updated September 15, 2010
Start date June 2009
Est. completion date January 2010

Study information

Verified date September 2010
Source SIGA Technologies
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The purpose of this study was to assess the safety, tolerability, and pharmacokinetics of two clinical doses of the anti-orthopoxvirus drug, ST-246, administered as a single daily oral dose for 14 days to healthy, fed volunteers. The results of this trial determine which dose will be used in expanded pivotal safety trials.


Description:

This study is a Phase II, double-blind, randomized, placebo-controlled, multi-center (3 sites) trial to assess the safety, tolerability, and pharmacokinetics of 400 mg and 600 mg Form I ST-246 when administered as a single daily oral dose for 14 days to 107 healthy, fed volunteers between 18 and 74 years of age. Safety parameters included adverse events, vital signs, physical examinations, laboratory tests (hematology, blood chemistry, and urinalysis) and electrocardiograms.


Recruitment information / eligibility

Status Completed
Enrollment 107
Est. completion date January 2010
Est. primary completion date January 2010
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria:

1. 18 - 75 yrs

2. Healthy volunteer

3. Ability to consent

4. Available for clinical follow-up for study

5. Not taking other medications

6. Adequate venous access

7. Using adequate birth control; negative pregnancy test

8. Able and willing to avoid alcohol for screening and study duration

Exclusion Criteria:

1. Inability to swallow study medication

2. Pregnant or breast-feeding

3. Medical condition, e.g., asthma, hypertension, angioedema, traumatic brain injury other than concussion, bleeding disorder, blood dyscrasia, idiopathic seizures, cardiac disease that limits activity, diabetes, active malignancy, Hepatitis B or C, HIV or AIDS, chronic microbial infection,

4. History of drug allergy that contraindicates study participation

5. Medical, psychiatric, social, occupational or other reason that jeopardizes the safety/rights of participant or renders he/she unable to comply with the protocol (including drug or alcohol abuse, or homelessness)

6. Clinically abnormal ECG

7. Has or will participate in a clinical trial or experimental treatment within 30 days of, or during, the study

8. Cannot or will not do physical exercise 24 hrs before and after PK days

9. Will not consume grapefruit/grapefruit juice during study

10. Vaccination within 2 wks of screening, or planned before Day 42 of study

11. Treatment with prednisone or equivalent immunosuppressant/modulatory drug <3 mths before screening

12. Clinically significant physical exam and lab results <2weeks from 1st study drug dose

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator)


Related Conditions & MeSH terms


Intervention

Drug:
ST-246 400 mg
Capsules, 400 mg daily for 14 days
ST-246 600 mg
Capsules, 600 mg daily for 14 days
Placebo
Capsules, once daily for 14 days

Locations

Country Name City State
United States Hawaii Clinical Research Center Honolulu Hawaii
United States Orlando Clinical Research Center Orlando Florida
United States Apex Research Institute Santa Ana California

Sponsors (2)

Lead Sponsor Collaborator
SIGA Technologies National Institutes of Health (NIH)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Study Participants Who Tolerated a Single Daily Oral ST-246 Dose as Determined by Safety Parameter Changes According to the DAIDS (Division of Acquired Immunodeficiency Syndrome) Adverse Events (AE) Grading Table. Subjects were administered a single, daily oral dose of ST-246 (400 or 600 mg)and changes in safety parameteres were monitored. Safety parameters included adverse events, vital signs, physical examinations, laboratory tests (hematology, blood chemistry, and urinalysis) and electrocardiograms. The DAIDS AE grading table is a list of common terms and severity (intensity) of parameters used to describe adverse events occurring in NIAID-sponsored clinical studies/trials. Days 1 to 14; then 24, 48, 72, 96 and 120 hours and 4 weeks after final dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: Cmax Cmax: Maximum drug concentration in plasma determined directly from individual concentration-time data Day 1 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: Cmax Cmax: Maximum drug concentration in plasma determined directly from individual concentration-time data Day 14 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: Tmax Tmax: Time to reach maximum drug concentration in plasma calculated from [plasma] versus time profiles Day 1 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: Tmax Tmax: Time to reach maximum drug concentration in plasma calculated from [plasma] versus time profiles Day 14 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: AUCtau AUCtau: Area under the plasma concentration-time curve for each dosing interval (from time 0 to 24 hours sample) determined using the linear trapezoidal rule Day 1 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: AUCtau AUCtau: Area under the plasma concentration-time curve for each dosing interval (from time 0 to 24 hours sample) determined using the linear trapezoidal rule Day 14 post-dose No
Secondary Evaluation of Pharmacokinetic Parameters to Assess Interventions: t½ t½: Observed terminal elimination half-life determined after the last dose on Day 14 Day 14 post-dose No
See also
  Status Clinical Trial Phase
Completed NCT00728689 - Phase I Trial of an Investigational Small Pox Medication Phase 1