Kidney DiseasesPhase 2NCT00234702
Efficacy and Safety of Lanthanum Carbonate in Reducing Serum Phosphorus Levels in Subjects With Stage 3 and 4 Chronic Kidney Disease
A Phase 2 study testing Lanthanum carbonate in people with Kidney Diseases, run by Shire at 10 sites in United States.
Trial summary
Chronic kidney disease (CKD) can result in a loss of ability to filter and excrete phosphate. The body's attempt to adjust to an increased level of phosphate in the blood can result in elevated levels of hormones and minerals resulting in serious clinical consequences. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Kidney Diseases
- What is being tested?
- Lanthanum carbonate
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 84 participants
- Where
- 10 sitesUnited States
- Study dates
- 11 Jan 2006to 1 Jun 2007
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Under a physician's care for CKD for > 2 months and are not expected to begin dialysis for 4 months
- Screening estimated GFR of 15-59 mL/1.73 m2
- Serum phosphorus >= 4.7 mg/d following washout
Who cannot join
- Requiring treatment with cinacalcet HCI or compounds containing phosphate, aluminum, calcium or magnesium
- Rapidly progressing glomerulonephritis
- Cirrhosis or other clinically significant liver diseases
- Past or present uncontrolled peptic ulcer, Crohn's disease, malignancy or recent GI bleed
Trial locations and contacts
10 sites in 1 country.
10 sites in 1 country
United States10 sites
Twin Cities Clinical Research
Brooklyn Center, Minnesota, 55430
University of North Carolina
Chapel Hill, North Carolina, 27599
Kidney Associates
Houston, Texas, 77030
Outcomes Research International, Inc.
Hudson, Florida, 34667
VA Greater Los Angeles Health Care System
Los Angeles, California, 90073
Nephrology Associates
Nashville, Tennessee
Northwest Renal Clinic
Portland, Oregon, 97210
St. Louis University/Nephrology
St Louis, Missouri, 63110
Western Nephrology & Metabolic Bone Disease, PC
Thornton, Colorado, 80260
Barnett Research & Communications Medical Corporation
Torrance, California, 90503
About this study
Official title: A Phase II, Double-blind, Randomized, Placebo-controlled Study to Assess the Efficacy and Safety of Lanthanum Carbonate for the Reduction of Serum Phosphorus in Subjects With Stage 3 and 4 Chronic Kidney Disease Who Have Elevated Serum Phosphorus Levels
Chronic kidney disease (CKD) can result in a loss of ability to filter and excrete phosphate. The body's attempt to adjust to an increased level of phosphate in the blood can result in elevated levels of hormones and minerals resulting in serious clinical consequences. This study is being conducted to evaluate the safety and efficacy of lanthanum carbonate in lowering high levels of phosphorus in the blood in subjects with CKD Stages 3 and 4 compared to placebo.
- Conditions
- Kidney Diseases
- Being tested
- Lanthanum carbonate, Placebo
- Medical subject headings
- Kidney Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Lanthanum carbonateDrug
Also called FOSRENOL
Lanthanum carbonate 750mg/day, T.I.D. for 2 weeks; titrated at the next 3 weekly visits in order to achieve target serum phosphorus levels, up to a maximum dose of 3000mg/day; 4-week maintenance period where subject receives the final titrated daily dose established during the titration period.
PlaceboDrug
Placebo
| Study group | Role | What they receive |
|---|---|---|
| 1 | Experimental | Not described Receives: Drug: Lanthanum carbonate |
| 2 | Placebo comparator | Not described Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Serum phosphorus levels at 8 weeks.
Measured: 8 weeks
Secondary outcomes (1)
PTH levels, calcium-phosphorus product.
Measured: 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Oct 2005 (estimated)
- Study start11 Jan 2006
- Primary completion1 Jun 2007
- Study completion1 Jun 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Kidney DiseasesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 84 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Shire
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Study Director, Study director, Takeda
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00234702
- Sponsor's protocol ID
- SPD405-206
- Status last verified
- Jun 2021
- First submitted
- 5 Oct 2005
- Last updated
- 8 Jun 2021
- Results posted
- No
Publications
Sprague SM, Abboud H, Qiu P, Dauphin M, Zhang P, Finn W. Lanthanum carbonate reduces phosphorus burden in patients with CKD stages 3 and 4: a randomized trial. Clin J Am Soc Nephrol. 2009 Jan;4(1):178-85. doi: 10.2215/CJN.02830608. Epub 2008 Dec 3.
PubMed 19056618Natale P, Green SC, Ruospo M, Craig JC, Vecchio M, Elder GJ, Strippoli GF. Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD). Cochrane Database Syst Rev. 2025 Jun 27;6(6):CD006023. doi: 10.1002/14651858.CD006023.pub4.
PubMed 40576086
Study at a glance
From the registry record, last updated by the sponsor on 8 Jun 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II, Double-blind, Randomized, Placebo-controlled Study to Assess the Efficacy and Safety of Lanthanum Carbonate for the Reduction of Serum Phosphorus in Subjects With Stage 3 and 4 Chronic Kidney Disease Who Have Elevated Serum Phosphorus Levels
- ClinicalTrials.gov ID
- NCT00234702
- Acronym / sponsor ID
- SPD405-206
- Conditions
- Kidney Diseases
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 84 participants (estimated)
- Lead sponsor
- ShireIndustry (pharma, biotech, devices)
- Study start
- 11 Jan 2006 (actual)
- Primary completion
- 1 Jun 2007 (actual)
- Study completion
- 1 Jun 2007 (actual)
- First posted
- 7 Oct 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Chronic kidney disease (CKD) can result in a loss of ability to filter and excrete phosphate. The body's attempt to adjust to an increased level of phosphate in the blood can result in elevated levels of hormones and minerals resulting in serious clinical consequences. This study is being conducted to evaluate the safety and efficacy of lanthanum carbonate in lowering high levels of phosphorus in the blood in subjects with CKD Stages 3 and 4 compared to placebo.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Experimental | Drug: Lanthanum carbonate |
| 2 | Placebo comparator | Drug: Placebo |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Under a physician's care for CKD for > 2 months and are not expected to begin dialysis for 4 months
- Screening estimated GFR of 15-59 mL/1.73 m2
- Serum phosphorus >= 4.7 mg/d following washout
Key exclusion criteria (4 listed)
- Requiring treatment with cinacalcet HCI or compounds containing phosphate, aluminum, calcium or magnesium
- Rapidly progressing glomerulonephritis
- Cirrhosis or other clinically significant liver diseases
- Past or present uncontrolled peptic ulcer, Crohn's disease, malignancy or recent GI bleed
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Lanthanum carbonateAlso: FOSRENOLLanthanum carbonate 750mg/day, T.I.D. for 2 weeks; titrated at the next 3 weekly visits in order to achieve target serum phosphorus levels, up to a maximum dose of 3000mg/day; 4-week maintenance period where subject receives the final titrated daily dose established during the titration period. | Drug | 1 |
| PlaceboPlacebo | Drug | 2 |
Primary outcome
Serum phosphorus levels at 8 weeks.
Time frame: 8 weeks
1 secondary outcome
PTH levels, calcium-phosphorus product.
Time frame: 8 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jun 2021.
- Results publication: PubMed 19056618Sprague SM, Abboud H, Qiu P, Dauphin M, Zhang P, Finn W. Lanthanum carbonate reduces phosphorus burden in patients with CKD stages 3 and 4: a randomized trial. Clin J Am Soc Nephrol. 2009 Jan;4(1):178-85. doi: 10.2215/CJN.02830608. Epub 2008 Dec 3.
- Derived from this study: PubMed 40576086Natale P, Green SC, Ruospo M, Craig JC, Vecchio M, Elder GJ, Strippoli GF. Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD). Cochrane Database Syst Rev. 2025 Jun 27;6(6):CD006023. doi: 10.1002/14651858.CD006023.pub4.
- FDA Recall InformationLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Study Director study director
Takeda
10 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Lanthanum carbonate in people with Kidney Diseases, run by Shire at 10 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 8 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 10 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Serum phosphorus levels at 8 weeks. (time frame: 8 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00234702, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2021.