scholarly journals Preventive effect of oral magnesium in postmastectomy pain: protocol for a randomised, double-blind, controlled clinical trial

BMJ Open ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. e017986 ◽  
Author(s):  
Véronique Morel ◽  
Dominique Joly ◽  
Christine Villatte ◽  
Bruno Pereira ◽  
Gisèle Pickering

IntroductionBreast cancer affects 1 in 10 women worldwide, and mastectomy is a cause of chronic pain with neuropathic characteristics.N-methyl-D-aspartate receptor (NMDAR) antagonists such as ketamine, memantine, dextromethorphan or magnesium are used to treat refractory pain by blocking NMDAR. Oral memantine has been shown to prevent postmastectomy pain and cognitive impact and to maintain quality of life. Likewise, the present study is intended to assess the preventive effect of oral magnesium, administered ahead of mastectomy, on the development of neuropathic pain. As a physiological blocker of NMDAR, magnesium could be an interesting candidate to prevent postoperative pain and associated comorbidities, including cognitive and emotional disorders, multiple analgesic consumption and impaired quality of life.Methods and analysisA randomised double-blind controlled clinical trial (NCT03063931) will include 100 women with breast cancer undergoing mastectomy at the Oncology Hospital, Clermont-Ferrand, France. Magnesium (100 mg/day; n=50) or placebo (n=50) will be administered for 6 weeks, starting 2 weeks before surgery. Intensity of pain, cognitive and emotional function and quality of life will be assessed by questionnaires. The primary endpoint is pain intensity on a 0–10 numerical rating scale at 1 month postmastectomy. Data analysis will use mixed models; all tests will be two-tailed, with type-I error set at α=0.05.Ethics and disseminationThe study protocol and informed consent form were approved in December 2016 by the French Research Ethics Committee (South East VI Committee). Results will be communicated in various congresses and published in international publications.Trial registration numberNCT03063931.

2021 ◽  
pp. 1-9
Author(s):  
Seyed Hossein Davoodi ◽  
Vahid Yousefinejad ◽  
Bayazid Ghaderi ◽  
Mohammad Esmail Akbari ◽  
Shoaleh Darvishi ◽  
...  

2019 ◽  
Author(s):  
Jie-shu You ◽  
Li Guo ◽  
Mei Huang ◽  
Xin-lei Shi ◽  
Man-di Lin ◽  
...  

Abstract Background: Hair loss is one of the most common side effects of chemotherapy, which can cause persistent negative emotions, further affecting therapeutic effects and reducing the quality of life. However, there is no clinically safe and effective methods to solve the problem at present. Our previous clinical and animal studies showed that a medicinal and edible decoction YH0618 could significantly promote hair growth in cancer patients after chemotherapy, without interfering with the anti-tumor effect of chemotherapy. Besides, the theory of Chinese Medicine believes “Essence of the kidney is reflected on the hair”. Therefore, this study will further explore the efficacy of YH0618 granule on chemotherapy-induced hair loss in patients with breast cancer by a randomized, double-blind, multi-center clinical trial and elucidate the potential mechanism from the aspect of kidney deficiency or renal dysfunction. Methods/Design: Eligible breast cancer patients who will start chemotherapy will be randomly divided into group A (YH0618 granule) and group B (placebo). The chemotherapeutic agents contains Taxanes or/and Anthracyclines, and chemotherapy regimen will last at least 6 cycles with every three weeks a cycle. Subjects assigned to group A will receive YH0618 granules two times a day (6 g each time), 6 days a week, mixing with 300 ml warm water from the first to the fourth chemotherapy cycle. Subjects in group B will receive the placebo granule in the same manner. The primary outcome is the time point of occurrence of hair loss reaching grade II assessed by WHO Toxicity Grading Scale, and objective indexes of hair quality and hair follicle recorded by a hair and scalp detector before the fifth chemotherapy. Secondary outcomes include changes of facial color and thumbnails color, grading of thumbnails ridging, assessment of quality life, fatigue, routine blood test, hepatic and renal function, and some medical indicators which can reflect kidney deficiency in Chinese Medicine. Discussion: This research is of great significance for the treatment of cancer and improving the quality of life of patients. The study may provide the most direct evidence for meeting clinical needs and lay a solid scientific foundation for later product development. Trial registration: The trial was registered on 14 December 2018 at Chinese Clinical Trial Registry: ChiCTR1800020107.


Pain Medicine ◽  
2020 ◽  
Vol 21 (10) ◽  
pp. 2212-2218
Author(s):  
Carolina Chaves ◽  
Paulo Cesar T Bittencourt ◽  
Andreia Pelegrini

Abstract Objective To determine the benefit of a tetrahydrocannabinol (THC)-rich cannabis oil on symptoms and quality of life of fibromyalgia patients. Methods A double-blind, randomized, placebo-controlled clinical trial was conducted for eight weeks to determine the benefit of a THC-rich cannabis oil (24.44 mg/mL of THC and 0.51 mg/mL of cannabidiol [CBD]) on symptoms and quality of life of 17 women with fibromyalgia, residents of a neighborhood with a low socioeconomic profile and a high incidence of violence in the city of Florianopolis, Brazil. The initial dose was one drop (∼1.22 mg of THC and 0.02 mg of CBD) a day with subsequent increases according to symptoms. The Fibromyalgia Impact Questionnaire (FIQ) was applied at pre- and postintervention moments and in five visits over eight weeks. Results There were no significant differences on baseline FIQ score between groups. However, after the intervention, the cannabis group presented a significant decrease in FIQ score in comparison with the placebo group (P = 0.005) and in comparison with cannabis group baseline score. (P < 0.001). Analyzing isolated items on the FIQ, the cannabis group presented significant improvement on the “feel good,” “pain,” “do work,” and “fatigue” scores. The placebo group presented significant improvement on the “depression” score after intervention. There were no intolerable adverse effects. Conclusions Phytocannabinoids can be a low-cost and well-tolerated therapy to reduce symptoms and increase the quality of life of patients with fibromyalgia. Future studies are still needed to assess long-term benefits, and studies with different varieties of cannabinoids associated with a washout period must be done to enhance our knowledge of cannabis action in this health condition.


Trials ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Jie-shu You ◽  
Li Guo ◽  
Mei Huang ◽  
Xin-lei Shi ◽  
Man-di Lin ◽  
...  

Abstract Background Hair loss is one of the most common side effects of chemotherapy, and can cause persistent negative emotions, further affecting therapeutic effects and reducing the quality of life. However, there are no clinically safe and effective methods to solve the problem at present. Our previous clinical and animal studies showed that a medicinal and edible decoction, YH0618, could significantly promote hair growth in cancer patients after chemotherapy, without interfering with the anti-tumor effects of chemotherapy. Besides, the theory of Chinese Medicine believes that the “Essence of the kidney is reflected on the hair”. Therefore, this study will further explore the efficacy of YH0618 granule on chemotherapy-induced hair loss in patients with breast cancer by a randomized, double-blind, multi-center clinical trial and elucidate the potential mechanism from the aspect of kidney deficiency or renal dysfunction. Methods/design Eligible breast cancer patients who will start chemotherapy will be randomly divided into group A (YH0618 granule) and group B (placebo). The chemotherapeutic agents contain taxanes or/and anthracyclines, and the chemotherapy regimen will be for at least six cycles with a cycle every 3 weeks. Subjects assigned to group A will receive YH0618 granules twice a day (6 g each time), 6 days a week, mixed with 300 ml warm water from the first to the fourth chemotherapy cycle. Subjects in group B will receive the placebo granule in the same manner. The primary outcome is the time point of occurrence of hair loss reaching grade II as assessed by the WHO Toxicity Grading Scale, and objective indices of hair quality and hair-follicle growth recorded by a hair and scalp detector before the fifth chemotherapy cycle. Secondary outcomes include changes of facial color and thumbnail color, grading of thumbnails ridging, assessment of quality life, level of fatigue, routine blood test results, hepatic and renal function, and certain medical indicators which can reflect kidney deficiency in Chinese Medicine. Discussion This research is of great significance for the treatment of cancer and improving the quality of life of cancer patients. The study may provide the most direct evidence for meeting clinical needs and lay a solid scientific foundation for later product development. Trial registration Chinese Clinical Trial Registry, ID: ChiCTR1800020107. Registered on 14 December 2018.


Sign in / Sign up

Export Citation Format

Share Document