Fibromyalgia Outcome Research Trial Evaluating Synergistic Suppression of HSV-1 (FORTRESS)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04748705 |
Recruitment Status :
Completed
First Posted : February 10, 2021
Last Update Posted : September 27, 2022
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Condition or disease | Intervention/treatment | Phase |
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Fibromyalgia | Drug: IMC-1 Drug: Placebo BID Tablet | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 422 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Double-Blinded, Randomized, Placebo-Controlled, Phase 2B Trial of IMC-1 for the Treatment of Fibromyalgia |
Actual Study Start Date : | June 3, 2021 |
Actual Primary Completion Date : | August 5, 2022 |
Actual Study Completion Date : | August 5, 2022 |

Arm | Intervention/treatment |
---|---|
Experimental: IMC-1 Oral Tablet
2X IMC-1 Tablet taken orally, each morning and evening.
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Drug: IMC-1
Patients will take 1 tablet twice daily, each morning and evening, of randomly assigned study drug orally starting on Day 1 through study duration. |
Placebo Comparator: Placebo
2X Placebo Tablet taken orally, each morning and evening.
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Drug: Placebo BID Tablet
Patients will take 1 tablet twice daily, each morning and evening, of randomly assigned study drug orally starting on Day 1 through study duration. |
- Mean Pain Score [ Time Frame: 16 Week ]Change from Baseline to Week 16 endpoint in the diary Numerical Rating Scale (NRS) weekly average of daily self-reported average pain severity scores. Scores range from 0 to 10 where a higher score means worse outcome.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | Female |
Gender Based Eligibility: | Yes |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- The patient is female, 18 to 65 years of age, inclusive.
- The patient has a diagnosis of primary FM as defined by the 2016 Revisions to the 2010/2011 fibromyalgia diagnostic criteria (American College of Rheumatology Preliminary Diagnostic Criteria)
- The in clinic 7-day recall VAS scale average daily pain intensity score at Screening visit within protocol defined range.
Exclusion Criteria:
- Any underlying medical or psychiatric condition that could impact their safe participation per protocol.

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): NCT04748705
United States, Alabama | |
IMC Study Site | |
Birmingham, Alabama, United States, 35216 | |
United States, Arkansas | |
IMC Study Site | |
Rogers, Arkansas, United States, 72758 | |
United States, California | |
IMC Study Site | |
Oceanside, California, United States, 92056 | |
IMC Study Site | |
Riverside, California, United States, 92503 | |
IMC Study Site | |
Sacramento, California, United States, 95831 | |
IMC Study Site | |
San Diego, California, United States, 92103 | |
IMC Study Site | |
Santa Ana, California, United States, 92705 | |
IMC Study Site | |
Temecula, California, United States, 92591 | |
United States, Florida | |
IMC Study Site | |
Jacksonville, Florida, United States, 32256 | |
IMC Study Site | |
Ocala, Florida, United States, 34470 | |
IMC Study Site | |
Oldsmar, Florida, United States, 34677 | |
IMC Study Site | |
Orlando, Florida, United States, 32801 | |
IMC Study Site | |
Tampa, Florida, United States, 33614 | |
United States, Georgia | |
IMC Study Site | |
Alpharetta, Georgia, United States, 30022 | |
United States, Illinois | |
IMC Study Site | |
Gurnee, Illinois, United States, 60031 | |
United States, Indiana | |
IMC Study Site | |
Evansville, Indiana, United States, 47714 | |
United States, Iowa | |
IMC Study Site | |
Des Moines, Iowa, United States, 50265 | |
United States, Kansas | |
IMC Study SIte | |
Prairie Village, Kansas, United States, 66208 | |
United States, Louisiana | |
IMC Study Site | |
Covington, Louisiana, United States, 70433 | |
IMC Study Site | |
New Orleans, Louisiana, United States, 70124 | |
IMC Study Site | |
Prairieville, Louisiana, United States, 70769 | |
United States, Massachusetts | |
IMC Study Site | |
Boston, Massachusetts, United States, 02131 | |
IMC Study Site | |
North Dartmouth, Massachusetts, United States, 02747 | |
United States, Mississippi | |
IMC Study Site | |
Jackson, Mississippi, United States, 39202 | |
United States, Nevada | |
IMC Study Site | |
Las Vegas, Nevada, United States, 89102 | |
United States, New Mexico | |
IMC Study Site | |
Albuquerque, New Mexico, United States, 87109 | |
United States, New York | |
IMC Study Site | |
Cedarhurst, New York, United States, 11516 | |
IMC Study Site | |
Williamsville, New York, United States, 14221 | |
United States, Ohio | |
IMC Study Site | |
Cincinnati, Ohio, United States, 45219 | |
IMC Study Site | |
North Canton, Ohio, United States, 44720 | |
United States, Oklahoma | |
IMC Study Site | |
Oklahoma City, Oklahoma, United States, 73106 | |
IMC Study Site | |
Tulsa, Oklahoma, United States, 74133 | |
United States, Oregon | |
IMC Study Site | |
Portland, Oregon, United States, 97210 | |
United States, Pennsylvania | |
IMC Study Site | |
Allentown, Pennsylvania, United States, 18104 | |
United States, Rhode Island | |
IMC Study Site | |
Warwick, Rhode Island, United States, 02886 | |
United States, Tennessee | |
IMC Study Site | |
Chattanooga, Tennessee, United States, 37421 | |
IMC Study Site | |
Knoxville, Tennessee, United States, 37912 | |
United States, Texas | |
IMC Study Site | |
Austin, Texas, United States, 78737 | |
IMC Study Site | |
Dallas, Texas, United States, 75231 | |
United States, Utah | |
IMC Study Site | |
Salt Lake City, Utah, United States, 84102 | |
United States, Virginia | |
IMC Study Site | |
Charlottesville, Virginia, United States, 22911 | |
United States, Washington | |
IMC Study Site | |
Everett, Washington, United States, 98201 |
Responsible Party: | Virios Therapeutics, Inc. |
ClinicalTrials.gov Identifier: | NCT04748705 |
Other Study ID Numbers: |
PRID-202 |
First Posted: | February 10, 2021 Key Record Dates |
Last Update Posted: | September 27, 2022 |
Last Verified: | September 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | No: There is not a plan to make IPD available. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Pain |
Fibromyalgia Myofascial Pain Syndromes Muscular Diseases Musculoskeletal Diseases |
Rheumatic Diseases Neuromuscular Diseases Nervous System Diseases |