Treatment Effects of Chinese Medicine (Yi-Qi-Qing-Jie Herbal Compound) Combined With Immunosuppression Therapies in IgA Nephropathy Patients With High-risk of ESRD

Phase 3Active Not RecruitingNCT03418779

Guang'anmen Hospital of China Academy of Chinese Medical Sciences60 enrolled

Overview

The TCM-WINE study is a single-center, prospective, double-blind randomized placebo-controlled trial. Based on optimal supportive care, the trial is aiming to assess superiority with regard to renal protection and reduction of severe treatment-related adverse events of Yi-Qi-Qing-Jie formula (YQF) combined therapy compared with immunosuppression monotherapy in high-risk IgAN.

The investigators plan to randomize 60 participants with biopsy-proven IgAN to a YQF combined group (YQF compound combined with prednisolone, and cyclophosphamide if necessary) or an immunosuppression group (placebo-YQF combined with prednisolone, and cyclophosphamide if necessary). The two groups will enter a 48-week in-trial treatment phase and receive post-trial follow-up until 50% (30/60) have a composite endpoint or have been followed for 3 years (study completion). All patients will receive optimal supportive care.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Enrollment

Conditions

IgA Nephropathy at High Risk of Developing ESRD

Interventions

The compounds are blends of individual herbal extracts from YQF (consisting of Astragalus membranaceus, Saposhnikovia divaricata (turcz.) Schischk, Flos lonicerae, Angelica sinensis, Dioscorea nipponica, Hedyotis diffusa Willd, rhubarb, Spatholobus suberectus, with the effect of reinforcing Qi and activating blood, clearing away heat and poison, dissolving dampness and downbearing turbid) dissolved in 150 ml boiled water and taken orally twice a day for the duration of the treatment and follow-up phases.

ImmunosuppressantsDRUG

Immunosuppression therapy comprises oral prednisolone (0.5-0.8 mg/kg/day; exact dose decided by the investigator, maximum dose not exceeding 60 mg/day) for 8 weeks, then tapered by 5-10 mg/day every 4 weeks, with a total treatment period of 24-32 weeks. Participants with persistent proteinuria ≥ 1 g/day after 8 weeks of corticosteroid monotherapy will receive 0.8-1.0 g of intravenous cyclophosphamide (CTX) every 4 weeks, total dose of not exceeding 8 g (exact dose decided by the site investigator). If severe CTX-related adverse events occur, such as alanine transaminase (ALT) exceeding the upper limit of two times, infections requiring hospitalization, granulocytes \< 3.0 × 109/L and platelets \< 50.0 × 109/L, CTX will stop being administered, symptoms will be treated, and adverse events recorded. Also, the frequency of detection will be increased to once every 2 weeks and the affected participant will be withdrawn if persistent infection or myelosuppression occurs.

Optimized Supportive CareOTHER

The optimized supportive care included: 1. Lifestyle: low-salt, restricted protein dietary with sufficient calorie supply, smoking cessation, moderate alcohol consumption and keeping a healthy weight 2. The use of renin-angiotensin system blockade: lowering blood pressure to a target below 135/85 mmHg, during which treatment was adjusted to ensure that patients were receiving the maximum labelled or tolerated dose of RAS blockade 3. Patients with Diabetes Mellitus received insulin or oral hypoglycemic agents to achieve HbA1c≤ 7.0% 4. Received uricosuric agents or xanthine oxidase inhibitors as necessary to achieve serum uric acid \<6 mg/dL in female, \<7 mg/dL in male

Yi-Qi-Qing-Jie herbal compound placeboOTHER

Patients will receive Yi-Qi-Qing-Jie herbal compound placebo instead for the duration of the treatment and follow-up phases. The major component of the placebo is malt dextrin which looks, smells and tastes like YQF compound, and it comes in packaging with a similar appearance to YQF compound; it is also dissolved in 150 ml boiled water and taken orally twice a day.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. patients who maintain regular follow-ups at Guang'anmen Hospital, agree to participate, and provide informed consent; 2. biopsy-proven IgA nephropathy, with recent progression to high-risk IgAN\*; 3. eGFR 15 to 60 ml/min/1.73 m2, calculated with the use of CKD-EPI Creatinine Equation 2009. * High-risk IgAN: persistent proteinuria ≥ 1 g/d despite at least 8 weeks of optimal supportive care \[maximally tolerated RAS blocker which refers to no symptomatic hypotension, no hyperkalemia, and serum creatinine increased by not more than 30% of baseline, blood pressure control meeting targets (135/85 mmHg or lower), and dietary management (sodium intake less than 6 g/d, protein intake of 0.6-0.8 g/kg/day, and low-fat diet)\], the mean annual eGFR decline rate (eGFR-slope) \>10 ml/min per 1.73 m2 per year, while needing to restart immunosuppressive therapy; or eGFR\<60 ml/min/1.73 m2 at the first diagnosis. Exclusion Criteria: 1. secondary IgAN; 2. comorbidity of other primary or secondary glomerular diseases; 3. comorbidity of severe primary diseases such as cardiovascular, hepatic, cerebral, and hematopoietic system diseases or mental disorders; 4. allergy or intolerance to the experimental medication (e.g., RAS blockers, prednisolone, cyclophosphamide, YQF compound and its placebo compound); 5. contraindications to immunosuppression therapy-acute and chronic infectious diseases, malignancies, leukopenia, thrombocytopenia, gastrointestinal hemorrhage, ulcers of stomach or duodenum, post-transplantation; 6. pregnant or lactating women; 7. unwilling to participate in this study, failure to accept or tolerate Chinese medicine compound; 8. history of alcohol or drug abuse; 9. poor compliance, loss to follow-up; 10. participation in another clinical investigation.

Outcomes

Primary Outcomes

First occurrence of 40% decrease in eGFR from baseline

Time frame: Baseline, until the first occurrence or 3 years

First occurrence of progression to continuous renal replacement

Time frame: Until occurrence or 3 years

Death due to renal disease

Time frame: Until occurrence or 3 years

Secondary Outcomes

Mean annual reduction in eGFR based on SCr

eGFR slope

Time frame: 48 weeks

Proteinuria remission

Prescribed as proteinuria \< 0.5 g/day

Time frame: Week 24, 36, and 48 in the treatment period, and month 6, 12, 24, or 36 if possible

The remission rate of symptoms and inflammation status

The subjective symptoms and inflammation status will be scored on a four-point scale ranging from 0 (absent) to 3 (severe).

Time frame: Week 48