Fish Oils and Adipose Inflammation Reduction

We propose to conduct a parallel arm, double blind, placebo-controlled trial to understand
the anti-inflammatory and metabolic effects of marine derived omega-3 fatty acids (EPA + DHA)
on obesity-related inflammation and chemokine signaling in humans. Obese (BMI>30 kg/m2) but
non-diabetic young males and females (n~44; 25 to 50 years of age) taking no omega-3 fatty
acid (EPA + DHA) supplements and consuming a low fish diet (defined as usual intake of high
omega-3 fish (tuna and other non-fried fish) < 3 to 4 servings per month) will be included. A
low habitual fish intake is important to control EPA + DHA intake during the supplement
period (see exclusion criteria below). Subjects also will be required to maintain their
current fish intake throughout the treatment period.

There will be two treatment groups; (1) placebo and (2) omega-3 fatty acids 4 grams/day. The
trial will be randomized, double blind, placebo-controlled, with parallel treatment groups;
treatment with omega-3 fatty acids 8 weeks. We will enroll participants until at least 22
subjects per study-arm complete all study visits (i.e., at least 44 participants).

Prescription Lovaza (omega-3-acid ethyl esters) from GlaxoSmithKline at 4 grams day (2 1-gram
capsules twice daily, with food) will be used. We expect this dose to be safe because it is a
dose that is recommended, and routinely used, for management of moderate or worse
hypertriglyceridemia (levels > 400 mg/dL). We will use matching placebo capsules so that all
participants are taking 2 capsules twice daily - with food as recommended in clinical
practice.

The study duration was chosen in order to provide adequate time for potential
anti-inflammatory effects of treatments without requiring maximum lipid modifying effects
while also reducing the potential for drop-out and loss to follow up that is associated with
longer study durations.

Participants will be recruited from the Preventive Cardiology Research databases, comprised
of healthy subjects who have participated in previous research studies and who have asked to
be contacted for future studies. Potential participants will also be recruited via local
IRB-approved flyers, internet, and newspaper advertisements (see flyer and advertisement
attached) targeting the Delaware Valley region.

STUDY PROCEDURES

Informed Consent Before study initiation, the clinical protocol, the Informed Consent Form
(ICF), and any advertisements for subject recruitment will be submitted for review and
approval to the Institutional Review Board (IRB). The investigator, or his designated
research staff, will obtain written informed consent from each subject enrolled in the study,
in accordance with the U.S. Food and Drug Administration (FDA) regulations 21 CFR parts
50.20-50.27. It is the responsibility of the investigator to ensure that informed consent is
obtained from the subject or his/her guardian or legal representative before any activity or
treatment is undertaken which is not part of routine care.

Safety Assessments Safety will be evaluated by the incidence, severity, and relationship to
treatment agent of adverse events.

Monitoring for Adverse Events: Details of all AEs that occur after the first dose of study
drug will be collected as indicated in Section 12. Any illness or injury that occurs before
the first dose of a study drug will be recorded under Medical History and evaluated to
determine if the occurrence affects the patient's eligibility to participate in the study.
Subjects will be asked the following standard questions by the designated clinical evaluator:
At clinic check-ins:

1. "Have you had any medical problems since your last visit?"

2. "Have any medical problems present at your last visit changed, i.e., stopped, worsened,
or improved?"

3. "Have you taken any medicines, other than study drug, since your last visit?" Any
spontaneous AE information provided by the patient will be recorded. NOTE: An AE may be
a new disease(s), any untoward event(s), or an exacerbation of a pre existing condition.
See Section 12.0 for complete details.

Adipose biopsy: Approximately 500-1000 mg of subcutaneous adipose tissue will be biopsied
from the gluteal region, processed, weighed and frozen until analyzed. Adipose tissue will be
obtained through a small (~5mm) incision under local anesthesia (2% Lidocaine without
epinephrine), as has been previously described13-15. A portion (200 mg) of the samples will
be flash frozen and analyzed for gene expression and protein assays. Another portion (500-800
mg) will be placed in sterile media and undergo digestion with collagenase, filtration, and
centrifugation for separation of the stromal vascular fraction (SVF). SVF cells will be
stained with antibodies for flow cytometer analysis. Finally, remaining tissue will be fixed
in paraffin for immunohistochemistry.

6.5 Subgingival analysis

Saliva samples will be collected using the OMNIgene DISCOVER (OM-505) kit (DNA Genotek), an
all-in-one kit which collects and stabilizes both microbial DNA and RNA in saliva. Samples
will be stored at -80C prior to extraction. Nucleic acids will be extracted using the QIAGEN
QIAamp MinElute Virus Spin Kit (Qiagen). Subgingival plaque samples will be obtained from 3
oral cavity regions in each subject (2 samples per region) using a soft-bristled microbrush
(DenTek). Specimens will be collected from the same anatomical location in all subjects. DNA
will be isolated using the PSP Spin Stool DNA kit (Invitec). DNA samples will be amplified
using V1-V2 region primers targeting bacterial 16S genes and sequenced using IlluminaHiSeq or
454 Pyrosequencing technology.

Specific Study Procedures (by visit)

Screening (Visit 1) Potential participants will be screened first by a telephone or e-mail
interview with the research coordinator (see Appendix B for email interview form; for
telephone interviews this information will be verbally exchanged). Participants who meet
initial study requirements will be invited for a screening visit (visit 1) at the CTRC. Prior
to this visit, participants will receive a detailed health questionnaire (see Appendix C)
that has been used in numerous previous studies that addresses questions regarding past
medical history, current use of medications and dietary supplements, exercise and social
habits. In addition, participants will be asked about fish consumption in order to ensure
recruitment of subjects with lower EPA + DHA intake during the study period. Participants
will be asked to complete these questionnaires at home and bring the completed forms with
them to their screening visit. During the screening visit, they will meet with research staff
to review and sign an IRB-approved consent form. Research staff will review the health
questionnaire with the participant as well as measure weight, height, waist and hip
circumference, sitting blood pressure and heart rate. A brief physical exam will be performed
as well as an electrocardiogram (ECG). In addition, participants will have blood drawn (after
a 12 hour fast) for evaluating fasting lipids, glucose, serum chemistries and liver function
and a complete blood count. Female participants will also be asked to provide a urine sample
for a pregnancy test. These laboratory parameters are included to assure the participant
meets eligibility criteria and that he/she is generally in good health. Once all clinical
data has been reviewed, study personnel will contact each study volunteer to let them know if
they are eligible.

Randomization visit (Visit 2) One to four weeks after the screening Visit 1, eligible
participants will return to the CTRC after a 12 hour fast for a 2 hour visit. Participants
will be asked to brush their teeth after their last meal the day before the visit, or at the
start of the 12-hour fasting period, and to refrain from additional brushing or use of
mouthwash until after the study visit. Participants will meet with a research nurse /
coordinator who will assess any change in medical history and medication use, as well as
review any adverse events. Blood pressure, heart rate, height and weight will be measured,
blood and urine will be collected for pre-randomization baseline efficacy measures and a
urine pregnancy test performed for all females. The simple fish consumption questionnaire
will be administered to assess any changes to the level of omega-3 intake in the diet.

They will also be asked to record all food and beverages consumed on dietary records on 3
days prior to the visit, as well as completing a digestive health questionnaire and diet
history questionnaire. All nutrient data collected from 3-day dietary records will be
analyzed by Food Processor 8.1 (06/03, Escha). Participants will be asked to complete these
questionnaires at home and bring the completed forms with them to their study visit. If a
subject is unable to print out or complete the forms at home, they will be completed at the
visit.

Saliva and subgingival plaque samples will be taken for assessment of oral microbiome. Saliva
samples will be collected using a standardized kit. Under the supervision of study personnel,
subjects will be given the kit, which consists of a funnel attached to a tube, and instructed
to spit into the funnel until the amount of liquid reaches a fill line located on the outside
of the attached tube. Once the proper amount has been collected, the lid of the funnel will
be closed and the funnel removed from the tube. The tube is then capped and shaken for about
10 seconds. Subgingival plaque samples will be collected by swabbing several regions of the
buccal mucosa using microbrushes. A separate brush will be used for each swab and two samples
will be collected from each region.

In order to establish effects of treatments on adipose inflammatory parameters, we will
obtain gluteal region subcutaneous adipose tissue biopsies under local anesthesia (2%
Lidocaine). A detailed description of the adipose collection procedures is given in Section
6.4. Participants will then be randomized to drug or placebo group. Supplies of study drug
will be provided to last 8 weeks (4 pills/day of either Lovaza or placebo).

Participants will be provided verbal and written instruction to take the study drugs as
follows; 2 fish oil/placebo with food in the morning, 2 fish oil/placebo with food in the
evening. A pill diary will be given to all subjects.

Telephone / E-mail Follow up (Visit 3) Participants will be contacted by telephone or e-mail
approximately four weeks (visit 3) post-randomization to review medication compliance and
pill diary, adverse events and any changes in fish consumption. Participants with <80%
apparent adherence to study medication will be counseled to increase compliance so that their
adherence at 8 weeks will be ≥80%.

Completion Visit (Visit 4) Participants will come to the CTRC after a 12 hour fast.
Participants will meet with a study coordinator who will assess changes to the medical
history and medication use. They will also be asked to record all food and beverages consumed
on dietary records on 3 days prior to the visit. Any adverse events will be recorded, pill
diary reviewed, and study medications will be counted (pill count) Weight and height will be
recorded and BMI calculated. ECG will be performed. Blood will be drawn for post-drug
screening of liver functions and chemistries as well as for all outcome-related measures
(lipids, insulin/glucose, inflammatory markers). Urine for efficacy measures will also be
collected. Urine pregnancy test will be performed in all females. Saliva and subgingival
plaque samples will be taken to assess for any change in oral microbiome by the treatment. An
adipose biopsy will be performed as above.

Inclusion Criteria:

1. Men and non-pregnant/lactating women between the ages of 25 and 50.

2. Body Mass Index (BMI) ≥30 kg/m2

3. Participants who are able to give written informed consent and willing to comply with
all study-related procedures.

Exclusion Criteria:

1. Diabetes Mellitus (glucose fasting >126, or random >200, Hemoglobin A1C>6.5 %, or use
of any anti-diabetic agent)

2. Self-reported fish or shellfish allergy

3. Planned usage of any prescription or non-prescription medication (other than
contraceptive pills or devices) during the study period.

4. Recent (within 6 months) use of fish oil supplements or self- reported dietary intake
of >3 servings of fish/month

5. Blood pressure >140/90

6. Recent (within 6 months) use of statins, niacin, or fenofibrates

7. Current or planned pregnancy/lactation. Pre-menopausal women unwilling to prevent
pregnancy by use of the following approved contraceptive strategies: diaphragm,
cervical cap, condom with spermicide, surgical sterility, birth control pills,
Depo-Provera injection, Intra-uterine device, progestin implant, or abstinence.

8. History of liver disease or abnormal liver function tests (aspartate aminotransferase,
Alanine transaminase, Alkaline Phosphatase, gamma-glutamyl transpeptidase > 1.5x Upper
Limit normal; bilirubin > 2x upper limit normal) at Screening Visit

9. Men who are unwilling to limit alcohol consumption to < 14 alcoholic drinks per week
or < 4 alcoholic drinks per occasion while participating in the study

10. Women who are unwilling to limit alcohol consumption to < 7 alcoholic drinks per week
or < 3 alcoholic drinks per occasion while participating in the study.

11. Hemoglobin less than 11.0 g/dL

12. Any reported arrhythmia, usage of anti-arrhythmic therapy, or abnormal screening
electrocardiogram

13. Known bleeding disorder or coagulopathy

14. Any major active rheumatologic, pulmonary, hematologic or dermatologic disease or
inflammatory condition or minor active infection

15. Self-reported history of HIV positive

16. Patients who have undergone any organ transplant

17. Individuals who currently use tobacco products or have done so in the previous 30 days

18. Treatment with aspirin, non steroidal anti-inflammatories, COX-2 inhibitors, steroids
or any immunomodulatory therapy 2 weeks prior to the Screening Visit

19. Participants who are unwilling to eliminate omega-3 fatty acid (EPA + DHA) supplements
and/or fortified food, or have their usual intake of high omega-3 fish (tuna and other
non-fried fish) be > 3 to 4 servings per month as assessed by a simple screening
questionnaire

20. Recent (within 6 months) treatment with coumarin-type anticoagulants

21. Positive urine pregnancy test result.

22. Self-reported history of injected recreational drug use.

23. Any medical condition or abnormal laboratory value that is judged clinically
significant by an investigator