Assessing the Effectiveness of an N-of-1 Platform Using Study of Cognitive Enhancers
![]() |
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: NCT04056650 |
Recruitment Status :
Terminated
(Low enrollment)
First Posted : August 14, 2019
Last Update Posted : March 12, 2021
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
The growing consumer-grade molecular and digital wellness market is generating unprecedented volumes of information to support decision-making around individual health. Current trends suggest the demand for personalized health information, tools, and services will continue to rise in the next decade. What is missing is a reliable, individualized way to turn this data into action. Dialogue around consumer health often ignores the disconnect between measurements and goals. For example, monitoring one's weight is not the same as losing weight, and counting steps is not the same as lowering blood pressure. If individuals are to benefit from data, they must be able to relate changes in their personal data to targeted changes in actions and outcomes. There is a great need and opportunity to adapt the tools and capabilities of modern computer science, statistics, and clinical trial design to the needs of individual patients and consumers. The team at the Institute for Next Generation Healthcare (INGH) has created a smartphone-based app ("N1 app") and study platform that together allow individuals to design, implement, and analyze methodologically sound, statistically robust studies of their personal health data. The focus of the platform will be the creation of single-participant randomized crossover studies, known as n-of-1 trials. The platform employs informatics-based intelligence that automates study design and analysis while simultaneously maintaining high standards of statistical rigor and reproducibility.
These novel methods and tools are designed to empower individuals to make rational, data-driven choices about their own health, maximizing the benefit all will receive from new and existing sources of personal health data.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Cognitive Performance | Drug: L-theanine Dietary Supplement: Caffeine supplement Device: N1 app | Phase 4 |

Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 57 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Device Feasibility |
Official Title: | Data Driven Health Decisions in the Wild: A Platform for Actionable N-of-1 Studies |
Actual Study Start Date : | October 18, 2019 |
Actual Primary Completion Date : | December 22, 2020 |
Actual Study Completion Date : | December 22, 2020 |
Arm | Intervention/treatment |
---|---|
Active Comparator: Single caffeinated beverage/supplement |
Dietary Supplement: Caffeine supplement
50-400mg Device: N1 app N1 App on mobile device |
Active Comparator: Combination caffeine and L-theanine |
Drug: L-theanine
up to 250 mg Dietary Supplement: Caffeine supplement 50-400mg Device: N1 app N1 App on mobile device |
- Percent of individuals who reach study completion [ Time Frame: Up to 27 days ]Percent of individuals that complete their n-of-1 trial after study initiation
- Percent of completed n-of-1 trials that yield statistically meaningful results. [ Time Frame: Up to 27 days ]Percent of individual n-of-1 studies that yield statistically conclusive results, for the comparisons (a) caffeine vs. baseline, (b) L-theanine + caffeine vs. baseline.
- Study adherence. [ Time Frame: Up to 27 days ]Percent of total actions required for the study (e.g. taking assigned treatments and completing daily cognitive assessment) completed by individual and in aggregate.

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 and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- US resident
- 18 years old or over
- Has an iPhone
- Regular caffeine drinker
Exclusion Criteria:
- Pregnant/breastfeeding
- Any contraindication/health issue in which risk is added by consumption of caffeine

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): NCT04056650
United States, New York | |
Icahn School of Medicine at Mount Sinai | |
New York, New York, United States, 10029 |
Principal Investigator: | Jason Bobe | Icahn School of Medicine at Mount Sinai |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Jason Bobe, Associate Professor, Icahn School of Medicine at Mount Sinai |
ClinicalTrials.gov Identifier: | NCT04056650 |
Other Study ID Numbers: |
GCO 18-0756 |
First Posted: | August 14, 2019 Key Record Dates |
Last Update Posted: | March 12, 2021 |
Last Verified: | March 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
N-of-1 Caffeine L-theanine |
Nootropic Cognition Individualized |
Caffeine Central Nervous System Stimulants Physiological Effects of Drugs Phosphodiesterase Inhibitors Enzyme Inhibitors |
Molecular Mechanisms of Pharmacological Action Purinergic P1 Receptor Antagonists Purinergic Antagonists Purinergic Agents Neurotransmitter Agents |