TOUR006 for Chronic Kidney Disease

(TRANQUILITY Trial)

Recruiting at 48 trial locations

Overseen By Tourmaline Bio

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Phase 2

Waitlist Available

Sponsor: Tourmaline Bio, Inc.

Prior Safety Data

Trial Summary

What is the purpose of this trial?

This study will evaluate the safety, tolerability, pharmacokinetics, and CRP-lowering effect of quarterly and monthly subcutaneous administration of TOUR006 (also known as pacibekitug) in participants with chronic kidney disease and elevated hs-CRP.

Do I have to stop taking my current medications for the trial?

The trial protocol does not specify whether you need to stop taking your current medications.

What data supports the idea that TOUR006 for Chronic Kidney Disease is an effective treatment?

The available research does not provide specific data on the effectiveness of TOUR006 for treating Chronic Kidney Disease. The articles focus on other aspects of kidney disease management, such as economic evaluations, surrogate endpoints in clinical trials, and the benefits of early nephrological care. Without direct evidence from these studies, we cannot conclude the effectiveness of TOUR006 for this condition. ^{1 2 3 4 5}

What safety data exists for TOUR006 (PF-04236921) in treating chronic kidney disease?

The provided research does not contain safety data for TOUR006 or PF-04236921. The studies focus on leflunomide and its effects in various nephropathy treatments, but do not mention TOUR006 or PF-04236921. ^{6 7 8 9 10}

Is the drug TOUR006 (PF-04236921) a promising treatment for Chronic Kidney Disease?

The information provided does not directly address the effectiveness or promise of the drug TOUR006 (PF-04236921) for treating Chronic Kidney Disease. The articles focus on screening, management, and the public health impact of CKD, but do not mention TOUR006 specifically. Therefore, based on the given information, we cannot determine if TOUR006 is a promising treatment. ^{11 12 13 14 15}

Research Team

Clinical Trials

Principal Investigator

Tourmaline Bio

Eligibility Criteria

This trial is for adults over 18 with chronic kidney disease who have an eGFR between ≥15 and <60 mL/min/1.73 m2 and elevated hs-CRP levels (≥2.0 mg/L but <15 mg/L). Participants must have received a COVID-19 vaccine at least 30 days prior to screening and agree to follow contraception guidelines.

Inclusion Criteria

I received my COVID-19 vaccine over 30 days ago.

Agreement to comply with contraception and reproduction restrictions

My kidney function is reduced but not severely.

Exclusion Criteria

I have had stomach ulcers or tears in my stomach/intestines.

I have severe heart failure or was hospitalized for it in the last 6 months.

I haven't had diverticulitis, inflammatory bowel disease, or a GI abscess in the last year.

Treatment Details

Interventions

• TOUR006 (Anti-inflammatory)

Trial Overview The study tests TOUR006 at different doses (25 MG, 50 MG, and 15 MG) versus a placebo in patients with chronic kidney disease. It aims to assess the drug's safety, how well it's tolerated, its pharmacokinetics (how it moves through the body), and its ability to lower CRP when given quarterly or monthly by injection.

Participant Groups

Group I: TOUR006 - 50 MG Experimental Treatment 1 Intervention

50 mg administered subcutaneously at Day 1 and Day 90 (Placebo administered at 30, 60, 120, and 150 Day timepoints)

Group II: TOUR006 - 25 MG Experimental Treatment 1 Intervention

25 mg administered subcutaneously at Day 1 and Day 90 (Placebo administered at 30, 60, 120, and 150 Day timepoints)

Group III: TOUR006 - 15 MG Experimental Treatment 1 Intervention

15 mg administered subcutaneously at Days 1, 30, 60, 90, 120, and 150

Group IV: Placebo Placebo Group 1 Intervention

Administered subcutaneously at Days 1, 30, 60, 90, 120, and 150

Who Is Running the Clinical Trial?

Tourmaline Bio, Inc.

Lead Sponsor

Trials

2

Recruited

220+

Findings from Research

Patients with advanced chronic kidney disease (CKD) enrolled in Taiwan's pay-for-performance (P4P) program had a significantly lower risk of starting dialysis (subdistribution hazard ratio of 0.845) and reduced all-cause mortality (subdistribution hazard ratio of 0.792) compared to those not enrolled.

The P4P program was found to be cost-effective, providing long-term savings and better resource utilization for advanced CKD patients, with lower CKD-related costs for those who initiated dialysis.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Economic evaluation of a pre-ESRD pay-for-performance programme in advanced chronic kidney disease patients. Hsieh, HM., Lin, MY., Chiu, YW., et al.[2022]

Recent research suggests that declines in estimated glomerular filtration rate (eGFR) of 30% or 40% and levels of albuminuria could serve as surrogate endpoints for assessing chronic kidney disease progression, but their validity may vary depending on the context.

Integrating multiple renal risk markers into risk algorithms may provide a more accurate prediction of drug effects on kidney health, as these algorithms account for the complex interactions between different markers, though they require further validation before use.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Surrogate endpoints in clinical trials of chronic kidney disease progression: moving from single to multiple risk marker response scores. Schievink, B., Mol, PG., Lambers Heerspink, HJ.[2015]

Among over 1 million adults with end-stage kidney disease, only 31.1% received at least 12 months of predialysis nephrology care, highlighting a significant gap in care.

Racial and ethnic disparities in receiving predialysis nephrology care persisted from 2005 to 2015, with Black and Hispanic adults consistently having lower odds of receiving this care compared to White adults, indicating a need for national strategies to address these disparities.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

National Trends in the Association of Race and Ethnicity With Predialysis Nephrology Care in the United States From 2005 to 2015. Purnell, TS., Bae, S., Luo, X., et al.[2022]

Early nephrological referral for chronic renal failure (CRF) patients significantly improves their condition at the start of maintenance dialysis, leading to better clinical outcomes, as evidenced by a shorter average hospital stay (4.8 days vs. 29.7 days for late referrals).

Patients referred late to nephrology had worse health indicators, including higher blood pressure and elevated serum levels of waste products, and experienced higher early mortality rates (7.1% vs. 1.6% within 3 months), highlighting the importance of timely nephrological management.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

[Benefits of early nephrological management in chronic renal failure]. Jungers, P., Skhiri, H., Zingraff, J., et al.[2016]

Early nephrological referral for chronic renal failure (CRF) patients significantly improves their condition at the start of maintenance dialysis, leading to better clinical outcomes, as seen in a study of 900 patients over 8 years.

Patients referred late to nephrologists had worse health indicators, longer hospital stays (29.7 days vs. 4.8 days), and higher early mortality rates (7.1% vs. 1.6%), highlighting the importance of timely referrals for better patient management and reduced healthcare costs.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

[Benefits of early nephrological management of chronic renal failure]. Jungers, P., Skhiri, H., Zingraff, J., et al.[2016]

A combination therapy of leflunomide (LEF) and prednisone showed a total efficacy rate of 60% in treating IgA nephropathy with nephrotic syndrome, which is comparable to the 65% efficacy rate of the control group receiving prednisone and MMF.

Both treatment regimens were well tolerated by patients, indicating that LEF is a safe option for managing this condition.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Comparison of the therapeutic effects of leflunomide and mycophenolate mofetil in the treatment of immunoglobulin A nephropathy manifesting with nephrotic syndrome. Liu, XW., Li, DM., Xu, GS., et al.[2019]

In a review of seven cases of Leflunomide (LEF)-induced interstitial lung disease (ILD) in nephropathy patients, it was found that ILD typically developed after about 2 months of treatment and an average accumulated dose of 1192.5 mg.

The study highlighted a concerning mortality rate of 57.1% among patients, particularly noting that factors such as male sex, younger age, and the presence of fever were associated with increased risk of death.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Interstitial lung diseases after leflunomide use in nephropathy: an analysis of reported cases in Chinese literature. Zhang, WX., Zhou, W., Zhang, ZQ., et al.[2021]

In a study of 21 patients with BK nephropathy, leflunomide treatment did not show a significant difference in BK viral clearance between low-level (<40 microg/ml) and high-level (>40 microg/ml) groups, indicating similar efficacy in this aspect.

However, higher leflunomide levels were associated with new toxic effects, including hemolysis and thrombotic microangiopathy, which could lead to graft loss, suggesting that careful monitoring of drug levels is crucial for patient safety.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Higher levels of leflunomide are associated with hemolysis and are not superior to lower levels for BK virus clearance in renal transplant patients. Leca, N., Muczynski, KA., Jefferson, JA., et al.[2021]

In a study of 52 patients with refractory nephrotic syndrome treated for 24 weeks, leflunomide combined with prednisone showed a total efficacy rate of 65.30%, which is comparable to the 57% efficacy rate of cyclophosphamide combined with prednisone.

Both treatment groups experienced significant improvements in urinary protein excretion and serum levels of albumin and cholesterol, with leflunomide showing a favorable safety profile and few adverse reactions.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Efficacy of leflunomide combined with prednisone in the treatment of refractory nephrotic syndrome. Liu, Y., Qu, X., Chen, W., et al.[2018]

This study will evaluate the efficacy and safety of Tripterygium wilfordii multiglycosides in 20 patients with idiopathic membranous nephropathy over a 6-month period, focusing on its ability to reduce proteinuria and improve kidney function alongside standard treatments.

The primary outcome will measure the decrease in urinary protein levels, while safety will be assessed by monitoring adverse events, ensuring a comprehensive evaluation of both effectiveness and safety in this patient population.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Efficacy and safety of tripterygium wilfordii multiglycosides in idiopathic membranous nephropathy: Protocol for an open-label randomized controlled clinical trial. Geng, C., Li, Q., Pu, L., et al.[2022]

The National Kidney Foundation's Kidney Early Evaluation Program (KEEP) effectively identifies chronic kidney disease (CKD) in high-risk populations, with 28.7% of the 100,000 participants screened found to have CKD, compared to a lower prevalence of 13.1% reported in the general population.

KEEP's structured screening approach not only detects CKD early but also enhances understanding of kidney disease, supporting public health initiatives aimed at improving outcomes for individuals with diabetes, hypertension, or a family history of these conditions.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Screening populations at increased risk of CKD: the Kidney Early Evaluation Program (KEEP) and the public health problem. Vassalotti, JA., Li, S., Chen, SC., et al.[2022]

Chronic kidney disease (CKD) affects about 25% of patients with type 2 diabetes, but many common diabetes medications, like metformin and sulfonylureas, have safety concerns or require dose adjustments due to renal impairment.

Newer antidiabetic agents, such as DPP-4 inhibitors and SGLT2 inhibitors, may be better tolerated in CKD, but their efficacy and safety still need further clinical evaluation, especially for those with severe kidney issues.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Pharmacokinetic considerations for the treatment of diabetes in patients with chronic kidney disease. Scheen, AJ.[2015]

Chronic kidney disease (CKD) is a significant global health issue that can be detected early through simple blood and urine tests, which is essential for effective management and treatment.

The review highlights various management strategies for CKD, including blood pressure control, glucose management, and novel kidney protective agents, which can significantly improve patient outcomes and reduce the risk of kidney failure.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Advances in the management of chronic kidney disease. Chen, TK., Hoenig, MP., Nitsch, D., et al.[2023]

Chronic kidney disease (CKD) affected 4.5% of hospitalized patients in China from 2010 to 2015, showing an increase from 3.7% to 4.7% over this period, indicating a growing public health concern.

The study identified rising trends in diabetic kidney disease and hypertensive nephropathy, particularly among urban residents in northern China, suggesting a need for targeted prevention strategies in these populations.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Spectrum of chronic kidney disease in China: A national study based on hospitalized patients from 2010 to 2015. Huang, YM., Xu, D., Long, J., et al.[2019]

In a study of 90,897 patients starting dialysis in the U.S. from 1995 to 1997, the average serum creatinine level was 8.5 mg/dl, indicating significant renal impairment, with a mean predicted GFR of only 7.1 ml/min/1.73 m2.

A notable 23% of patients began dialysis with a predicted GFR of less than 5 ml/min/1.73 m2, highlighting a concerning trend of late initiation of dialysis, which may affect treatment outcomes and costs.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Level of renal function at the initiation of dialysis in the U.S. end-stage renal disease population. Obrador, GT., Arora, P., Kausz, AT., et al.[2013]

References

1. England pubmed.ncbi.nlm.nih.gov

Economic evaluation of a pre-ESRD pay-for-performance programme in advanced chronic kidney disease patients. [2022]

2. England pubmed.ncbi.nlm.nih.gov

Surrogate endpoints in clinical trials of chronic kidney disease progression: moving from single to multiple risk marker response scores. [2015]

3. United States pubmed.ncbi.nlm.nih.gov

National Trends in the Association of Race and Ethnicity With Predialysis Nephrology Care in the United States From 2005 to 2015. [2022]

4. France pubmed.ncbi.nlm.nih.gov

[Benefits of early nephrological management in chronic renal failure]. [2016]

5. France pubmed.ncbi.nlm.nih.gov

[Benefits of early nephrological management of chronic renal failure]. [2016]

6. Germany pubmed.ncbi.nlm.nih.gov

Comparison of the therapeutic effects of leflunomide and mycophenolate mofetil in the treatment of immunoglobulin A nephropathy manifesting with nephrotic syndrome. [2019]

7. England pubmed.ncbi.nlm.nih.gov

Interstitial lung diseases after leflunomide use in nephropathy: an analysis of reported cases in Chinese literature. [2021]

8. United States pubmed.ncbi.nlm.nih.gov

Higher levels of leflunomide are associated with hemolysis and are not superior to lower levels for BK virus clearance in renal transplant patients. [2021]

9. England pubmed.ncbi.nlm.nih.gov

Efficacy of leflunomide combined with prednisone in the treatment of refractory nephrotic syndrome. [2018]

10. United States pubmed.ncbi.nlm.nih.gov

Efficacy and safety of tripterygium wilfordii multiglycosides in idiopathic membranous nephropathy: Protocol for an open-label randomized controlled clinical trial. [2022]

11. United States pubmed.ncbi.nlm.nih.gov

Screening populations at increased risk of CKD: the Kidney Early Evaluation Program (KEEP) and the public health problem. [2022]

12. England pubmed.ncbi.nlm.nih.gov

Pharmacokinetic considerations for the treatment of diabetes in patients with chronic kidney disease. [2015]

13. England pubmed.ncbi.nlm.nih.gov

Advances in the management of chronic kidney disease. [2023]

14. Australia pubmed.ncbi.nlm.nih.gov

Spectrum of chronic kidney disease in China: A national study based on hospitalized patients from 2010 to 2015. [2019]

15. United States pubmed.ncbi.nlm.nih.gov

Level of renal function at the initiation of dialysis in the U.S. end-stage renal disease population. [2013]