A Phase III, randomized, double-blind, placebo-controlled clinical trial has been conducted to evaluate the efficacy and safety of Trĩ Thiên Dược capsules in people with grade II internal hemorrhoids with bleeding. This study aims to further assess the therapeutic effects and potential adverse effects of Trĩ Thiên Dược, a herbal formulation containing Portulaca Oleracea L. (purslane) and Amaranthus Spinosus L. (spiny amaranth), in comparison to Diosmin (Daflon).Participants will undergo a 5-week study period and will be randomly assigned (1:1 ratio) into one of two groups:Research Group: Participants receiving Trĩ Thiên Dược tablets.Control Group: Participants receiving Daflon (Diosmin).The treatment regimen will last for 28 days, followed by an additional follow-up period extending to day 35 after the initial treatment.
Study Design: This study is a randomized, open-label, placebo-controlled trial evaluating the efficacy of Diosmin (Daflon) in people with grade II internal hemorrhoids with bleeding. Participants are randomly assigned in a 1:1 ratio to receive either Tri Thien Duoc pills or Diosmin (Daflon). Participants: A total of 172 participants with grade II internal hemorrhoids with bleeding were enrolled in the study and allocated as follows: Intervention Group: 86 participants received Tri Thien Duoc pills at a dosage of 8 capsules per day for 28 days, with follow-up conducted for 35 days from the initiation of treatment. Control Group: 86 participants received Diosmin (Daflon) at a dosage of 4 pills per day for 28 days, with follow-up conducted for 35 days from the initiation of treatment. Study Procedures: All participants in this Phase III study adhered to the dietary and lifestyle recommendations outlined by the American Gastroenterological Association for hemorrhoid management, including: Maintaining a high-fiber diet rich in vegetables and soft foods. Ensuring adequate hydration (1.5-2 litres of water per day). Engaging in regular physical activity. Avoiding prolonged sitting. Assessments and Monitoring: Participants underwent clinical evaluations and monitoring throughout the study. Key clinical parameters were assessed at four-time points: Baseline (Day 0, D0) Mid-treatment (Day 14, D14) End of treatment (Day 28, D28) Post-treatment follow-up (Day 35, D35) Laboratory tests, including liver and kidney function assessments, complete blood count, urinalysis, and colonoscopy, were conducted at baseline (D0) and treatment's end (D28).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
172
Intervention Group: 86 participants received Tri Thien Duoc pills at a dosage of 8 capsules per day for 28 days, with follow-up conducted for 35 days from the initiation of treatment.
Control group: 86 patients took Daflon, 4 tablets/day for 28 days, monitored for 35 days from the start of treatment.
Hanoi Medical University Hospital
Hanoi, Vietnam
Mean duration of rectal bleeding
Mean duration of fresh rectal bleeding episodes: Defined as the mean number of days the patient experiences fresh rectal bleeding.
Time frame: Baseline (Day 0, start of treatment) End of treatment (Day 28, after 28 days of treatment) Follow-up (Day 35, 7 days post-treatment)
Rate of cessation of rectal bleeding
Defined as the proportion of patients who achieve complete cessation of fresh rectal bleeding out of the total number of patients
Time frame: Baseline (Day 0, start of treatment) End of treatment (Day 28, after 28 days of treatment) Follow-up (Day 35, 7 days post-treatment)
Severity of hemorrhoidal symptoms
the mean symptom score of participants according to the Sodergren scale.
Time frame: Baseline (Day 0, start of treatment) End of treatment (Day 28, after 28 days of treatment) Follow-up (Day 35, 7 days post-treatment)
Pain score during defecation
The average pain level score reported by patients during defecation, measured using the Visual Analog Scale (VAS).
Time frame: Baseline (Day 0, start of treatment) End of treatment (Day 28, after 28 days of treatment) Follow-up (Day 35, 7 days post-treatment)
Rate of recurrent bleeding
The number of patients experiencing rebleeding out of the total number of patients in each group.
Time frame: During 35 days of follow up
Degree of defecation disorder
The average Wexner Defecation Disorder Score, which quantifies the severity of defecation dysfunction.
Time frame: Baseline (Day 0, start of treatment) End of treatment (Day 28, after 28 days of treatment) Follow-up (Day 35, 7 days post-treatment)
Degree of hemorrhoid prolapse
the proportion of patients classified according to each degree of hemorrhoid severity, as determined by clinical examination and rigid sigmoidoscopy.
Time frame: Baseline (Day 0, start of treatment); End of treatment (Day 28, after 28 days of treatment)
Anal mucosal condition
The percentage of patients classified according to the degree of hemorrhoidal engorgement, as assessed by rigid sigmoidoscopy.
Time frame: Baseline (Day 0, start of treatment); End of treatment (Day 28, after 28 days of treatment)
Adverse Events
the proportion of patients who experienced a drug-related adverse event during the study period in each group.
Time frame: During 28 days of treatment
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