L-Theanine for Cancer

This trial explores how L-theanine, a compound in green tea, can help cancer patients feel more relaxed and improve their mood after treatment. Researchers aim to determine the best dose and assess its effectiveness in reducing stress and enhancing mental well-being. Participants will take L-theanine once or twice daily for six weeks. Those who have been cancer-free and under medical surveillance for at least six months and often feel anxious might find this trial suitable. As an Early Phase 1 trial, this research focuses on understanding how L-theanine works in people, offering participants the chance to be among the first to benefit from this treatment.

The trial does not specify that you need to stop taking your current medications, but you must not have changed your psychiatric medications in the past 60 days. You also cannot use other alternative medicines, herbs, or high-dose vitamins unless correcting a deficiency.

Research shows that L-theanine, a natural substance in green tea, is generally safe. Studies have found that L-theanine neither causes cancer nor affects reproduction. People have consumed it in tea for a long time without known safety issues. Further research suggests it can reduce stress and improve mood without serious side effects. Although this trial is in the early stages, existing evidence supports the safety of L-theanine in humans.¹²³⁴⁵

Researchers are excited about L-Theanine as a cancer treatment because it offers a unique approach compared to traditional therapies like chemotherapy and radiation. L-Theanine is derived from tea leaves and is known for its calming properties, but its potential in cancer treatment lies in its ability to enhance the effectiveness of existing treatments while potentially reducing side effects. Unlike conventional treatments that often come with a host of severe side effects, L-Theanine's natural origin might offer a more gentle alternative. Additionally, it can be administered orally, making it an accessible option for patients seeking less invasive treatment methods.

Research has shown that L-theanine, a substance in green tea leaves, may help cancer patients feel more relaxed and improve their mood. L-theanine increases certain chemicals in the body that reduce stress and stabilize mood. Early studies suggest it can positively impact mental health and well-being. In lab tests, L-theanine also slowed the spread of cancer cells, particularly in prostate cancer. Although more research is needed, these early findings offer hope for its use in supporting the mental health of cancer patients. Participants in this trial will receive L-theanine either once or twice daily to evaluate its effects.²³⁵⁶⁷