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The purpose of this study is to understand the effects of fish oil supplement (containing parts of omega-3 fatty acids) on inflammation. The investigators are aiming to identify which dose of the fish oil supplement is the most effective. The name of the fish oil supplement is "SPM Emulsion."
The OMEGA-SPM-DOSE trial and the OMEGA-SPM-PAD trial are two parts of a pilot study which aims to investigate the effect of a novel formulation of a nutritional supplement containing highly concentrated n-3 PUFA metabolites (SPM Emulsion) on the metabolo-lipidomic profile of healthy volunteers and patients with Peripheral Arterial Disease(PAD). Ten healthy volunteers and ten patients with PAD will participate in Part 1a, the "OMEGA-SPM-DOSE Study". A follow-up, placebo controlled, prospective study on the best dosing modality determined in Phase 1a will then take place in a PAD and OA population (n=12), Phase 1b - the "OMEGA-SPM-PAD Study". Specific measurements will include targeted metabolo-lipidomic profiling, established markers of inflammation, and functional monocyte and macrophage assays. The proposed studies have the potential to provide important new insights on the role of nutritional interventions in PAD.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Phase 1a (OMEGA-SPM-DOSE) | Experimental | PAD patients and healthy volunteers in study for SPM Emulsion, dose-modality. |
|
| SPM - Phase 1b (OMEGA-SPM-DOSE) | Active Comparator | PAD and Osteoarthritis (OA) patients using softgel, dose-modality. |
|
| Placebo - Phase 1b (OMEGA-SPM-PLACEBO) | Placebo Comparator | PAD and Osteoarthritis (OA) patients using softgel, dose-modality. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| SPM Emulsion, Dose-modality | Dietary Supplement | Phase 1a Dose-Finding oral SPM administration of increasing dose (15ml, 30ml, and 60ml) by the following schedule: Days 1 to 5: 15 ml; Days 6 to 14: Washout, no SPM administration; Days 15 to 19: 30 ml; Days 20-28: Washout, no SPM administration; Days 29-33: 60 ml |
| Measure | Description | Time Frame |
|---|---|---|
| Optimal Phase 1b Dose | The smallest dose administered in Phase 1a participants which results in an increase in Resolution Index at least 3 times that of baseline, or the subsequent larger dose resulting in a Resolution Index greater than 2 times that of the preceding does with no increase in side effects at the larger dose. | Baseline, Day 33 |
| Change in the Resolution Index | Integrated metabolo-lipidomics assessment of SPM pathways: Average concentration of 15-HEPE, 18-HEPE, 4-HDHA, and 17-HDHA in plasma. | Baseline, Day 5 |
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Inclusion Criteria:
Healthy Volunteers:
-Age 20-80
PAD Patients:
OA Patients:
-Lower extremity (hip or knee) OA
Exclusion Criteria:
PAD, OA Patients and Healthy Volunteers:
Healthy Volunteers:
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| Name | Affiliation | Role |
|---|---|---|
| Michael Conte, M.D. | University of California, San Francisco | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of California San Francisco | San Francisco | California | 94143 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26296857 | Background | Grenon SM, Owens CD, Nosova EV, Hughes-Fulford M, Alley HF, Chong K, Perez S, Yen PK, Boscardin J, Hellmann J, Spite M, Conte MS. Short-Term, High-Dose Fish Oil Supplementation Increases the Production of Omega-3 Fatty Acid-Derived Mediators in Patients With Peripheral Artery Disease (the OMEGA-PAD I Trial). J Am Heart Assoc. 2015 Aug 21;4(8):e002034. doi: 10.1161/JAHA.115.002034. | |
| 24052491 |
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| SPM Softgel, Dose-Modality | Dietary Supplement | Phase 1b Dose-Finding oral softtel SPM administration of two different doses (2 softgel vs 4 softgel) Days 0 to 5: 2 SPM softgel; Days 6 to 21: Washout, no SPM administration; Days 22 to 26: 4 SPM softgel; Days 27-42: Washout, no SPM administration |
|
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| Placebo Softgel | Dietary Supplement | Days 43-47: 4 Placebo softgel; Day 48-64 Washout |
|
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| Background |
| Grenon SM, Owens CD, Alley H, Chong K, Yen PK, Harris W, Hughes-Fulford M, Conte MS. n-3 Polyunsaturated fatty acids supplementation in peripheral artery disease: the OMEGA-PAD trial. Vasc Med. 2013 Oct;18(5):263-74. doi: 10.1177/1358863X13503695. Epub 2013 Sep 19. |
| 25777995 | Background | Akagi D, Chen M, Toy R, Chatterjee A, Conte MS. Systemic delivery of proresolving lipid mediators resolvin D2 and maresin 1 attenuates intimal hyperplasia in mice. FASEB J. 2015 Jun;29(6):2504-13. doi: 10.1096/fj.14-265363. Epub 2015 Mar 16. |
| 25409514 | Background | Chatterjee A, Sharma A, Chen M, Toy R, Mottola G, Conte MS. The pro-resolving lipid mediator maresin 1 (MaR1) attenuates inflammatory signaling pathways in vascular smooth muscle and endothelial cells. PLoS One. 2014 Nov 19;9(11):e113480. doi: 10.1371/journal.pone.0113480. eCollection 2014. |
| 23407709 | Background | Miyahara T, Runge S, Chatterjee A, Chen M, Mottola G, Fitzgerald JM, Serhan CN, Conte MS. D-series resolvin attenuates vascular smooth muscle cell activation and neointimal hyperplasia following vascular injury. FASEB J. 2013 Jun;27(6):2220-32. doi: 10.1096/fj.12-225615. Epub 2013 Feb 13. |
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| 32696697 | Derived | Schaller MS, Chen M, Colas RA, Sorrentino TA, Lazar AA, Grenon SM, Dalli J, Conte MS. Treatment With a Marine Oil Supplement Alters Lipid Mediators and Leukocyte Phenotype in Healthy Patients and Those With Peripheral Artery Disease. J Am Heart Assoc. 2020 Aug 4;9(15):e016113. doi: 10.1161/JAHA.120.016113. Epub 2020 Jul 22. |
| ID | Term |
|---|---|
| D058729 | Peripheral Arterial Disease |
| D007383 | Intermittent Claudication |
| D061205 | Vascular Calcification |
| D014652 | Vascular Diseases |
| D010003 | Osteoarthritis |
| ID | Term |
|---|---|
| D050197 | Atherosclerosis |
| D001161 | Arteriosclerosis |
| D001157 | Arterial Occlusive Diseases |
| D002318 | Cardiovascular Diseases |
| D016491 | Peripheral Vascular Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D002114 | Calcinosis |
| D002128 | Calcium Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
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