264 Participants Needed

AP301 for High Phosphate Levels

(RESPOND-2 Trial)

Recruiting at 41 trial locations
WZ
BZ
Overseen ByBobby Zang
Age: Any Age
Sex: Any
Trial Phase: Phase 3
Sponsor: Alebund Pharmaceuticals
Must be taking: Phosphate binders
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)
Pivotal Trial (Near Approval)This treatment is in the last trial phase before FDA approval
Prior Safety DataThis treatment has passed at least one previous human trial

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial tests whether a new treatment, AP301, can lower high blood phosphate levels in people on dialysis. Researchers aim to determine if AP301 improves the balance of phosphate, calcium, and certain hormones, and how it affects patients' quality of life. Participants will stop other phosphate-lowering drugs and take AP301 or a low-dose version three times daily in different phases. This trial suits individuals who have been on dialysis for at least three months and have high blood phosphate levels despite other treatments. As a Phase 3 trial, this study represents the final step before FDA approval, offering participants a chance to contribute to a potentially groundbreaking treatment.

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

Yes, you will need to stop taking all blood phosphate-lowering drugs before starting the trial.

Is there any evidence suggesting that AP301 is likely to be safe for humans?

Studies have shown that AP301 is generally safe and well-tolerated for treating high phosphate levels in patients. In a previous study, the most common mild side effects included changes in stool color and diarrhea. These side effects typically appeared early in the treatment and did not persist.

Overall, research indicates that AP301 is safe to use, although some individuals might experience these mild issues. Prospective trial participants should know that the treatment has been tested in humans before with these results.12345

Why do researchers think this study treatment might be promising?

Unlike standard treatments for high phosphate levels, which often include phosphate binders like calcium acetate or sevelamer, AP301 introduces a new approach by using an iron-based compound. Researchers are excited about AP301 because it potentially offers a dual benefit: lowering phosphate levels while also addressing iron deficiency, a common issue in patients with high phosphate levels. The potential for improved patient outcomes with a single medication is what makes AP301 particularly promising.

What evidence suggests that AP301 could be an effective treatment for high phosphate levels?

Research shows that AP301, a treatment under study in this trial, effectively lowers blood phosphate levels in dialysis patients. Studies have found that AP301, which contains iron, reduces these levels more than treatments lacking active ingredients. High phosphate levels can be harmful, particularly for individuals with kidney problems. AP301 also positively affects related factors such as calcium and parathyroid hormone levels, which are crucial for bone health. Although more research is needed, early findings suggest that AP301 could enhance overall health in individuals with high phosphate levels.

Are You a Good Fit for This Trial?

This trial is for adults on dialysis for at least 3 months with high blood phosphate levels, specifically between 6.0 and 10.0 mg/dL after stopping other phosphate-lowering drugs. They must have signed consent forms and meet specific dialysis efficiency criteria (spKt/V ≥ 1.2 for hemodialysis or total Kt/V ≥ 1.7/week for peritoneal dialysis).

Inclusion Criteria

My dialysis is effectively cleaning my blood.
I have signed the informed consent form.
I am an adult.
See 3 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Washout

Participants stop all blood phosphate-lowering drugs

1-2 weeks

Initial Treatment

Participants take AP301 or the comparator three times a day

8 weeks

Extended Treatment

Participants take AP301 three times a day with dose adjustments

24 weeks

Final Treatment

Participants take AP301 or the comparator three times a day

3 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • AP301
Trial Overview The study tests if AP301 can lower blood phosphate in patients undergoing maintenance dialysis compared to a low dose version of the same drug, which serves as an ineffective comparator. It will also assess effects on serum calcium, calcium-phosphate product, parathyroid hormone levels, potential discomforts from taking AP301, and any improvements in quality of life.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Group I: AP301 Low DoseExperimental Treatment1 Intervention
Group II: AP301Experimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Alebund Pharmaceuticals

Lead Sponsor

Trials
4
Recruited
240+

Fortrea

Industry Sponsor

Trials
22
Recruited
5,800+

Citations

Study Details | NCT07030595 | AP301 Efficacy and Safety ...This Phase 3 clinical trial is the pivotal study of AP301 aiming to evaluate the efficacy and safety of AP301 for controlling serum phosphorus in chronic kidney ...
2.pubmed.ncbi.nlm.nih.govpubmed.ncbi.nlm.nih.gov/38453435/
Tolerability, safety and efficacy of a novel phosphate binder ...Tolerability, safety and efficacy of a novel phosphate binder VS-505 (AP301): a Phase 2 dose-escalation and dose-ranging study in patients ...
Alebund Presents Phase 3 Trial Results of AP301 at the ...Overall, AP301 was safe and well-tolerated. The most common AEs were discolored feces and diarrhea. Diarrhea generally occurred early and ...
Tolerability, safety and efficacy of a novel phosphate binder ...Tolerability, safety and efficacy of a novel phosphate binder VS-505 (AP301): a Phase 2 dose-escalation and dose-ranging study in patients ...
AP301 for High Phosphate Levels (RESPOND-2 Trial)This trial is for adults on dialysis for at least 3 months with high blood phosphate levels, specifically between 6.0 and 10.0 mg/dL after stopping other ...
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