TheraRadar
Data updated: May 26, 2026

RAYALDEE (calcifediol)

Renal Approved 2016-06-17

Rayaldee helps adults with stage 3 or 4 chronic kidney disease manage secondary hyperparathyroidism. It is specifically used for patients whose serum total 25-hydroxyvitamin D levels have fallen below 30 ng/mL. This medication is not intended for patients with end-stage renal disease or those currently receiving dialysis.

Source: FDA Label • EIRGEN

How RAYALDEE Works

This medication works by providing a prohormone that the kidneys convert into calcitriol, the active form of vitamin D3. Once activated, it binds to vitamin D receptors to increase the absorption of calcium and phosphorus while simultaneously reducing the production of parathyroid hormone.

1
Indication
--
Phase 3 Trials
9
Years on Market

Details

Status
Prescription
First Approved
2016-06-17
Patent Cliff
2034

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Patent cliff and revenue data

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Routes
ORAL
Dosage Forms
CAPSULE, EXTENDED RELEASE

Companies

Active Ingredient: CALCIFEDIOL

RAYALDEE Approval History

2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
4 FDA actions from 2016 to 2024
Jan 2024 SUPPL
Mfg · Manufacturing (CMC)
Dec 2019 SUPPL
Label · Labeling
Dec 2016 SUPPL
Mfg · Manufacturing (CMC)

What RAYALDEE Treats

2 indications

RAYALDEE is approved for 2 conditions since its original approval in 2016. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Secondary Hyperparathyroidism
  • Chronic Kidney Disease
Source: FDA Label

RAYALDEE Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to RAYALDEE

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FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

DOXERCALCIFEROL
DOXERCALCIFEROL
2 shared
Lupin
Shared indications:
Secondary HyperparathyroidismChronic Kidney Disease
PARSABIV
ETELCALCETIDE
2 shared
KAI PHARMS INC
Shared indications:
Secondary HyperparathyroidismChronic Kidney Disease
ZEMPLAR
PARICALCITOL
2 shared
AbbVie
Shared indications:
Secondary HyperparathyroidismChronic Kidney Disease
📋

Clinical Trial Registry

5 trials
Trial Sponsor ID Phase Status Title
NCT02962102 ACTIVATE-AKI results posted 2016P002527 5K23DK106448 Ph 2 completed Activated Vitamin D for the Prevention and Treatment of Acute Kidney Injury
NCT04551911 results posted CTAP101-CL-2014 Ph 2 completed Safety and Efficacy of Rayaldee for Treating Mild to Moderate COVID-19
NCT02548364 VITDAMI FJD-VITDAMI-14-01 Ph 3 completed Effect of Vitamin D on Ventricular Remodeling in Patients With Acute Myocardial Infarction (VITDAMI)
NCT01939977 PARIDOINAL results posted ACA-SPAI-11-24 2013-001326-25 Ph 4 completed Efficacy and Safety of Paricalcitol in the Reduction of Secondary Hyperparathyroidism After Kidney Transplantation.
NCT02805907 ACViD results posted 300681 Ph 4 completed Efficacy of Calcifediol Supplementation in Asthma Control in Asthmatic Patients With Vitamin D Deficiency (ACViD)
🔬

Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

RAYALDEE FDA Label Details

Indications & Usage

FDA Label (PDF)

RAYALDEE is indicated for the treatment of Secondary Hyperparathyroidism; Chronic Kidney Disease.

View full patent landscape →
16 OB patents · 4 families · 265 international docs across 39 countries

RAYALDEE Patents & Exclusivity

Latest Patent: Mar 2034

Patents (16 active)

US9861644 Expires Mar 14, 2034
US10300078 Expires Mar 14, 2034
US10357502 Expires Mar 14, 2034
US11253528 Expires Mar 14, 2034
US11801253 Expires Sep 7, 2030
US8426391 Expires Aug 27, 2028
US8361488 Expires Jul 19, 2028
US8778373 Expires Apr 25, 2028
US9408858 Expires Apr 25, 2028
US9925147 Expires Apr 25, 2028
US8207149 Expires Apr 25, 2028
US9498486 Expires Apr 25, 2028
US11154509 Expires Apr 25, 2028
US9943530 Expires Feb 2, 2027
US10213442 Expires Feb 2, 2027
US8906410 Expires Feb 2, 2027
Source: FDA Orange Book

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Patent Timeline

  • Cliff: 2034
  • 22 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 20 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.