Bisht B, Darling WG, White EC, White KA, Shivapour ET, Zimmerman MB, Wahls TL Effects of a multimodal intervention on gait and balance of subjects with progressive multiple sclerosis: a prospective longitudinal pilot study. Degener Neurol Neuromuscul Dis. 2017 Jun 26;7:79-93. doi: 10.2147/DNND.S128872. eCollection 2017.
Chenard CA, Rubenstein LM, Snetselaar LG, Wahls TL Nutrient Composition Comparison between a Modified Paleolithic Diet for Multiple Sclerosis and the Recommended Healthy U.S.-Style Eating Pattern. Nutrients. 2019 Mar 1;11(3):537. doi: 10.3390/nu11030537.
Irish AK, Erickson CM, Wahls TL, Snetselaar LG, Darling WG Randomized control trial evaluation of a modified Paleolithic dietary intervention in the treatment of relapsing-remitting multiple sclerosis: a pilot study. Degener Neurol Neuromuscul Dis. 2017 Jan 4;7:1-18. doi: 10.2147/DNND.S116949. eCollection 2017.
Lee JE, Titcomb TJ, Bisht B, Rubenstein LM, Louison R, Wahls TL A Modified MCT-Based Ketogenic Diet Increases Plasma beta-Hydroxybutyrate but Has Less Effect on Fatigue and Quality of Life in People with Multiple Sclerosis Compared to a Modified Paleolithic Diet: A Waitlist-Controlled, Randomized Pilot Study. J Am Coll Nutr. 2021 Jan;40(1):13-25. doi: 10.1080/07315724.2020.1734988. Epub 2020 Mar 26.
Wahls T, Scott MO, Alshare Z, Rubenstein L, Darling W, Carr L, Smith K, Chenard CA, LaRocca N, Snetselaar L Dietary approaches to treat MS-related fatigue: comparing the modified Paleolithic (Wahls Elimination) and low saturated fat (Swank) diets on perceived fatigue in persons with relapsing-remitting multiple sclerosis: study protocol for a randomized controlled trial. Trials. 2018 Jun 4;19(1):309. doi: 10.1186/s13063-018-2680-x.
Wahls TL, Chenard CA, Snetselaar LG Review of Two Popular Eating Plans within the Multiple Sclerosis Community: Low Saturated Fat and Modified Paleolithic. Nutrients. 2019 Feb 7;11(2):352. doi: 10.3390/nu11020352.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
