Improving Lives Through Research

St. Charles Clinical Research is an independently owned company with over 40 years of combined experience in clinical trials. Our Friendly staff and personal approach provide the attention and professionalism crucial for the best patient experience.

Available Studies

We are now accepting volunteers for the following Clinical Research Studies:

Shot of a young woman experiencing stomach pain while lying on the sofa at home

IBS-D (diarrhea) 12 week treatment and relief of symptoms associated with irritable bowel syndrome (IBS) with predominant diarrhea (IBS-D)

Learn More

Female doctor with a stethoscope is holding mock stomach in the hands. Help and care concept

Diabetic Gastroparesis-12 week treatment and relief of symptoms associated with diabetic gastroparesis.

Learn More

Acute Treatment for Migraines

Learn More

Migraine Headache Preventative Treatment

Learn More

C-Diff 1st Diagnosis or 1st Recurrence Treatment Study

Have you been diagnosed with C. difficile diarrhea? You may qualify if you are 18 years of age or older and have a first or second episode of C-diff infection (CDI.)

Study participants will be provided study medications, laboratory analyses, and follow up visits with our providers at no cost. A small stipend and help with transportation to and from the clinical research site may also be available.

Learn More

C. Diff Treatment For Adults with Recurrent Infections

In a recent study, participants with recurrent C. diff who received CP101 after completing a round of antibiotics were significantly less likely to experience another episode of C. diff, compared to participants who received antibiotics alone. In the study, 74.5% of participants who received CP101 achieved a clinical cure, meaning they did not experience a recurrence of C. diff within 8 weeks of taking CP101.

CP101 is a microbiome therapy. The microbiome is the community of organisms that live in the intestinal tract.

Learn More