ClinicalTrials.gg
CompletedNCT07804641Updated Sep 4, 2026

Safety and Efficacy of the Combination Therapy of Fucoidan / Fucoxanthin / L-carnitine in Patients With Diabetic Nephropathy.

A Phase 2 interventional study of Oligo-fucoidan, Fucoxanthin, L-carnitine Formula, Zinc yeast (FFL) in Diabetic Kidney Disease (DKD), sponsored by Taipei Medical University WanFang Hospital. Completed at 1 site in Taiwan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2026-09-04.

Sponsored by Taipei Medical University WanFang Hospital · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 9 months after the study started (first participant enrolled Nov 2024, registered Aug 2026).
Phase
Phase 2
Study type
Interventional
Enrollment
63
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 21 studies in Diabetic Nephropathies with a site in Taiwan — 3 open to participants now, 3 under way, none of them phase 3. Diabetic Nephropathies · Taiwan.

Enrollment
14th of 17
63 · median 281
Started
2024
the only one that year
Phase 2
7 of 21
none open now
Registered
21st of 21
by date

Among the 21 studies in Diabetic Nephropathies with a site in Taiwan, this one is the 14th largest by enrollment of the 17 interventional ones, is the only one that started in 2024, is one of 7 in phase 2, and was the 21st registered.

By phase

21 studies; the count open now beside each. This study's row is marked.

Phase 2this study7 · 0 open
No phase5 · 1 open
Observational4 · 2 open
Phase 33 · 0 open
Phase 42 · 0 open

By the year they started

First in 2003; this study’s year is marked. 1 started in 2024.

Size and results

Median enrollment 281 across the 17 interventional studies, 669 across the 4 observational. Of the 14 that completed or were terminated, 7 (50%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 21 studies in Diabetic Nephropathies with a site in Taiwan, or all of them as a file.
02

Study summary

The purpose of this open-label, preliminary, proof-of-concept clinical trial is to evaluate the efficacy and safety of The purpose of this open-label, preliminary, proof-of-concept clinical trial is to evaluate the efficacy and safety of The purpose of this open-label, preliminary, proof-of-concept clinical trial is to evaluate the efficacy and safety of fucoidan/fucoxanthin/L-carnitine combinaed therapy in patients with diabetic kidney disease.

Participants were randomly assigned in a 1:1 ratio to either the Treatment Group or the Control Group. The primary objective is to investigate whether fucoidan/fucoxanthin/L-carnitine/Zinc yeast combinaed therapy can significantly improve albuminuria or renal function after a treatment period of 12 weeks. Secondary outcomes include evaluating the safety profile and potential side effects of the intervention.

It is hypothesized that the intervention will show a beneficial effect on albuminuria compared to the control group. in patients withdiabetic kidney disease.

03

Conditions studied

  • Diabetic Kidney Disease (DKD)

Keywords

  • Diabetic kidney disease
  • Oligo-fucoidan
  • Fucoxanthin
  • eGFR
  • Albuminuria
04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Documented (HbA1c) > 6.5% with current use of anti-diabetic medication.
  • A urine albumin-to-creatinine ratio (UACR) greater than 30 mcg/mg.

Exclusion criteria

Exclusion Criteria:

  • Age younger than 20 years.
  • Inability to understand or provide written .
  • Absence of regular treatment for diabetes mellitus.
  • Medication non-compliance, defined as completing less than 50% of the prescribed formula (FFL) treatment.
  • Newly diagnosed glomerulonephritis during the study period.
  • Loss to follow-up, defined as failure to complete all laboratory tests required for outcome assessment.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
63 participants (actual)

Study arms

  • Experimental
    FFL group

    Participants received the marine-derived formula FFL (a combination of low-molecular-weight oligo-fucoidan, fucoxanthin-containing extract, and L-carnitine) as an adjunctive therapy to their existing standard-of-care for diabetic kidney disease. The daily dose consisted of 4 capsules per day, delivering a total of 740 mg of oligo-fucoidan, 1200 mg of fucoxanthin, and 120 mg of L-carnitine. The intervention was maintained for a total duration of 12 weeks while keeping their baseline anti-diabetic and renoprotective medications unchanged.

    Dietary Supplement: Oligo-fucoidan, Fucoxanthin, L-carnitine Formula, Zinc yeast (FFL)

  • No intervention
    Control group

    Participants continued their optimized standard-of-care treatment for diabetic kidney disease (including SGLT2 inhibitors and ACEIs/ARBs) for 12 weeks. No active capsules or placebos were administered to this group. All baseline anti-diabetic and blood pressure medications were required to remain stable and unchanged throughout the study period.

Interventions

  • Dietary supplementOligo-fucoidan, Fucoxanthin, L-carnitine Formula, Zinc yeast (FFL)

    Combined marine-derived formulation administered orally in capsule form. Each day, participants took 4 capsules, providing a total daily dose of 740 mg of low-molecular-weight oligo-fucoidan, 1200 mg of fucoxanthin-containing extract, and 120 mg of L-carnitine. The intervention was used as an add-on therapy to standard diabetic kidney disease care for a total duration of 12 weeks.

06

What researchers measure

Primary outcomes

  1. Percentage Change From Baseline in Urine Albumin-to-Creatinine Ratio (UACR)

    The UACR was assessed via random spot urine collection. The primary outcome was expressed as the ratio of the difference (end-of-trial value minus baseline value) to the baseline value, calculated using the formula: \\((12-weekUACR-BaselineUACR)/BaselineUACR\\) \* 100%. A negative percentage indicates a reduction in albuminuria (improvement).

    Time frame: Baseline and Week 12

  2. Percentage Change From Baseline in Estimated Glomerular Filtration Rate (eGFR)

    Serum creatinine was measured and eGFR was calculated using the 2021 CKD-EPI creatinine equation. The outcome was expressed as the ratio of the difference (end-of-trial value minus baseline value) to the baseline value, calculated using the formula: \\((12-weekeGFR-BaselineeGFR)/BaselineeGFR\\) \* 100%. This parameter was evaluated to monitor for any acute hemodynamically-induced decline (eGFR dip) upon treatment initiation.

    Time frame: Baseline and Week 12

Secondary outcomes

  1. Percentage Change From Baseline in Glycated Hemoglobin (HbA1c)

    Blood samples were collected to analyze HbA1c levels for evaluating glycemic control. The outcome was expressed as the ratio of the difference (end-of-trial value minus baseline value) to the baseline value, calculated using the formula: \\((12-weekHbA1c-BaselineHbA1c)/BaselineHbA1c\\) \* 100%.

    Time frame: Baseline and Week 12

  2. Percentage Change From Baseline in Low-Density Lipoprotein Cholesterol (LDL-C)

    Fasting lipid profiles were analyzed to evaluate lipid metabolism. The outcome was expressed as the ratio of the difference (end-of-trial value minus baseline value) to the baseline value, calculated using the formula: \\((12-weekLDL-C-BaselineLDL-C)/BaselineLDL-C\\) \* 100%.

    Time frame: Baseline and Week 12

07

Study locations

1 site
  • Wanfang Hospital, Taipei Medical Univeristy
    Taipei, 116, Taiwan
08

References and documents

Publications

  • Chen HH, Sue YM, Chen CH, Hsu YH, Hou CC, Cheng CY, Lin SL, Tsai WL, Chen TW, Chen TH. Peroxisome proliferator-activated receptor alpha plays a crucial role in L-carnitine anti-apoptosis effect in renal tubular cells. Nephrol Dial Transplant. 2009 Oct;24(10):3042-9. doi: 10.1093/ndt/gfp258. Epub 2009 Jun 2. PubMed 19491382 ↗
  • Chen YC, Cheng CY, Liu CT, Sue YM, Chen TH, Hsu YH, Hwang PA, Chen CH. Alleviative effect of fucoxanthin-containing extract from brown seaweed Laminaria japonica on renal tubular cell apoptosis through upregulating Na+/H+ exchanger NHE1 in chronic kidney disease mice. J Ethnopharmacol. 2018 Oct 5;224:391-399. doi: 10.1016/j.jep.2018.06.023. Epub 2018 Jun 18. PubMed 29920359 ↗
  • Chen TH, Liu CT, Cheng CY, Sue YM, Huang NJ, Chen CH. Oligosaccharides Ameliorate Acute Kidney Injury by Alleviating Cluster of Differentiation 44-Mediated Immune Responses in Renal Tubular Cells. Nutrients. 2022 Feb 11;14(4):760. doi: 10.3390/nu14040760. PubMed 35215410 ↗
  • Chen CH, Sue YM, Cheng CY, Chen YC, Liu CT, Hsu YH, Hwang PA, Huang NJ, Chen TH. Oligo-fucoidan prevents renal tubulointerstitial fibrosis by inhibiting the CD44 signal pathway. Sci Rep. 2017 Jan 18;7:40183. doi: 10.1038/srep40183. PubMed 28098144 ↗

Individual participant data

Plan to share: No — Individual participant data from this preliminary proof-of-concept trial will not be made publicly available to protect patient privacy and intellectual property confidentiality.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2024 to primary completion in Nov 2025, 11 months.

Of 52 phase 2 interventional studies under Diabetic Nephropathies, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 31. This study's 11 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 31, 2026
First posted
Sep 4, 2026
StartActual
Nov 6, 2024
Primary completionActual
Nov 5, 2025
CompletionActual
Mar 11, 2026
Last update
Sep 4, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07804641
Responsible party
Chung-te Liu (Associate Professor and Chief Physician, Taipei Medical University WanFang Hospital) — Principal investigator
First posted
Sep 4, 2026
Start date
Nov 6, 2024
Primary completion
Nov 5, 2025
Completion
Mar 11, 2026
Last update
Sep 4, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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