COffee and Metabolites Modulating the Gut MicrobiomE in Colorectal caNCER
Launched by MASSACHUSETTS GENERAL HOSPITAL · Jan 19, 2023
Trial Information
Current as of June 26, 2025
Recruiting
Keywords
ClinConnect Summary
This clinical trial is exploring how drinking 6 grams of freeze-dried instant coffee each day may affect liver health and the gut bacteria in patients who have finished treatment for colorectal cancer. The study aims to understand if coffee can help improve liver fat and fibrosis, which is the thickening or scarring of liver tissue, as well as how it influences the gut microbiome—the community of bacteria living in our intestines that play a crucial role in digestion and overall health.
To participate in this trial, you need to be at least 18 years old and have been diagnosed with stage I, II, or III colorectal cancer, having completed your standard treatment at least two months ago. Importantly, you should not have been drinking more than two cups of coffee a day recently and must not be taking other cancer treatments. If eligible, you will follow specific study guidelines and receive coffee to consume daily. This research will help us learn more about the potential benefits of coffee for colorectal cancer survivors, but please remember that if you are pregnant, breastfeeding, or have certain health conditions, you may not be able to join.
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- Participants must meet the following criteria on screening examination to be eligible to participate in the study:
- • Participants must have histologically confirmed stage I, II, or III colon or rectal adenocarcinoma and have completed standard treatment (including surgery, chemotherapy and radiotherapy) at least 2 months ago.
- • Age 18 years or older.
- • This study will only include adult participants because colorectal carcinogenesis in children is more likely to be related to a cancer predisposition syndrome with distinct biological mechanisms compared with sporadic colorectal cancer in adults.
- • The effects of coffee on the developing human fetus are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
- • Subjects must be able and willing to follow study procedures and instructions.
- • Ability to understand and the willingness to sign a written informed consent document.
- Exclusion Criteria:
- • Participants who exhibit any of the following conditions at screening will not be eligible for admission into the study.
- • Participants who are receiving any other investigational agents.
- • Concurrent use of other anti-cancer therapy, including chemotherapy agents, targeted agents, biological agents, immunotherapy, or investigational agents not otherwise specified in this protocol.
- • Regularly consuming more than 2 cups of coffee ( 8 oz) per day for at least 3 days a week in the past month.
- • Current or recent use (within 1 month) of any coffee supplements (e.g., green coffee extracts).
- • History of diagnosed conditions that may be worsen by coffee, including arrhythmias, insomnia, tremors, tics, generalized anxiety disorder, bipolar disease, panic attacks, Tourette's, epilepsy or overactive bladder.
- • History of adverse reactions to coffee or intolerance of coffee consumption.
- • Inability or unwillingness to swallow capsules.
- • History of malabsorption or uncontrolled vomiting or diarrhea, or any other disease that could interfere with absorption of oral medications.
- • Any uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or psychiatric illness/social situations that, in the opinion of the investigator, may increase the risks associated with study participation or study treatment, limit compliance with study requirements, or interfere with the interpretation of study results.
- • Pregnant or breastfeeding. The effects of coffee on the developing human fetus are unknown. For this reason, women of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation.
- • Should a woman become pregnant or suspect she is pregnant while she is participating in this study, she should inform her treating physician immediately. Similarly, lactating women are excluded from this study because there is an unknown but potential risk of adverse events in nursing infants secondary to treatment of the mother with coffee. Consequently, breastfeeding should be discontinued if the mother is enrolled on the study.
- • Presence of synchronous (at the same time) malignancy for which the patient is currently receiving active treatment.
- • Known positive test for human immunodeficiency virus (HIV), hepatitis C virus, or acute or chronic hepatitis B infection.
About Massachusetts General Hospital
Massachusetts General Hospital (MGH) is a leading academic medical center located in Boston, Massachusetts, renowned for its commitment to advancing medical research and patient care. As a prominent teaching hospital affiliated with Harvard Medical School, MGH plays a pivotal role in clinical trials across a wide range of disciplines, including cardiology, oncology, neurology, and more. The institution is dedicated to fostering innovative research that translates into effective therapies and improved health outcomes. MGH's Clinical Trials Office provides comprehensive support to facilitate the design, implementation, and management of clinical studies, ensuring adherence to the highest ethical standards and regulatory compliance. With a focus on collaboration and patient-centered care, MGH strives to enhance medical knowledge and contribute to the future of healthcare.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Boston, Massachusetts, United States
Boston, Massachusetts, United States
Patients applied
Trial Officials
Aparna R Parikh, MD, MS
Principal Investigator
Massachusetts General Hospital
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
Similar Trials