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NCT Number: NCT07753031

Non-Interventional Study of Ferretab® Comp. (Ferrous Fumarate + Folic Acid Prolonged-Release Capsules) Effects in Adult Patients With Iron Deficiency Anemia and Cardiovascular Disease

The goal of this observational study is to learn how well Ferretab® comp. works and how safe it is for adults with iron deficiency anemia and cardiovascular disease who are receiving treatment as part of their usual medical care. The main questions it aims to answer are:

* Does treatment with Ferretab® comp. improve anemia? * Does treatment with Ferretab® comp. improve heart-related symptoms, exercise tolerance, and overall well-being? * What side effects do participants have while taking Ferretab® comp.?

This is a non-interventional study. Participants will receive Ferretab® comp. because their doctor has already decided to prescribe it as part of routine medical care. Ferretab® comp. is an oral medicine that contains iron (as iron fumarate) and folic acid. The study will not change their treatment.

Participants will:

* Take Ferretab® comp. for 12 weeks as prescribed by their doctor. * Attend study visits at the start of treatment, after about 4 weeks, and after about 12 weeks. * Have routine blood tests and health assessments during the study. * Report any side effects and record information in a patient diary. * Answer questions about their symptoms, exercise tolerance, and how easy the treatment is to use.

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Key information

About this study

Iron deficiency anemia (IDA) is a common condition that may worsen symptoms and outcomes in people with cardiovascular diseases (CVDs). Adequate treatment of iron deficiency may improve hematologic parameters and reduce symptoms associated with anemia. This post-authorization, non-interventional study is designed to evaluate the effectiveness and safety of Ferretab® comp. in adults with IDA and concomitant cardiovascular disease treated under routine clinical practice conditions.

As this is a non-interventional study, all diagnostic and therapeutic procedures will be performed in accordance with routine clinical practice and the approved Summary of Product Characteristics. No additional diagnostic or therapeutic procedures will be performed solely for study purposes.

The study is intended to provide real-world evidence on the effectiveness, safety, and use of Ferretab® comp. in adults with iron deficiency anemia and concomitant cardiovascular disease treated in routine clinical practice.

Composition of Ferretab® comp.

Active ingredients: iron fumarate and folic acid. Each prolonged-release capsule contains 3 mini-tablets with iron fumarate and 1 mini-tablet with folic acid, which contain: iron fumarate equivalent to 50 mg of iron, folic acid - 500 mcg.

Indications:

Treatment of latent iron deficiency and iron deficiency anemia, combined with folic acid deficiency, including during pregnancy.

Ferretab® comp. is registered in:

Russia, Belarus, Kazakhstan, Kyrgyzstan, Armenia, Latvia, Lithuania, Romania, Austria, Uzbekistan

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female patients aged 18 years or older.
  • Diagnosis of mild to moderate iron deficiency anemia (IDA), defined as hemoglobin 70-129 g/L in men or 70-119 g/L in women and ferritin <30 ng/mL, with laboratory results obtained within 14 days before Visit 0.
  • Presence of at least 1 chronic CVD, defined as coronary artery disease or congestive heart failure with preserved ejection fraction (left ventricular ejection fraction ≥50%; NYHA Functional Class I-II).
  • Ability to understand the study requirements and provide written informed consent to participate in the study, including consent for the use and transfer of health information relevant to the study.
  • The physician has decided to prescribe Ferretab® comp. as IDA treatment of IDA at a dose of 2 capsules per day.
  • Signed Informed Consent Form.

Exclusion criteria

  • Hypersensitivity to any component of Ferretab® comp.
  • Any contraindication to the use of Ferretab® comp. as specified in the Summary of Product Characteristics.
  • Use of any other iron-containing medicinal products within 3 months prior to study enrollment (including oral iron preparations, intravenous iron formulations, or mineral/supplement products containing a therapeutic dose of iron).
  • Severe anemia (hemoglobin concentration <70 g/L).
  • Confirmed or suspected diagnosis of anemia of chronic disease.
  • Pregnancy or breastfeeding.
  • Surgery planned to be performed during the study period.
  • CVD or any other chronic disease in the stage of decompensation.
  • Congestive heart failure with reduced ejection fraction (NYHA Functional Class III-IV (see Appendix 2) and/or ejection fraction <50%).
  • Severe chronic kidney disease (Stage IV-V chronic kidney disease, or patients receiving hemodialysis or peritoneal dialysis).
  • Severe chronic liver disease (Child-Pugh Class B or C liver cirrhosis, active hepatitis, or ALT/AST >3 × the upper limit of normal).
  • Active malignancy (patients receiving chemotherapy, radiotherapy, or immunotherapy).
  • Anemias unrelated to iron deficiency, as well as other chronic hematologic disorders (thalassemia, aplastic anemia, myelodysplastic syndrome, and autoimmune hemolytic anemia).
  • Evidence of anemia of inflamation.
  • Gastrointestinal malabsorption disorders (active celiac disease, small bowel resection, short bowel syndrome, or severe flare of Crohn's disease or ulcerative colitis).
  • Recent bleeding, including gastrointestinal bleeding within 3 months before the study entry, surgery associated with blood loss within 8 weeks before the study entry, hemorrhagic stroke within 3 months before the study entry.
  • Blood transfusion within 3 months before the study entry.
  • Severe psychiatric disorders that impair the patient's ability to comply with the Protocol requirements and/or to provide valid informed consent.
  • Planned use, at the time of the study entry, of any medication or procedure listed as prohibited therapy.

Treatment and study plan

Primary outcomes

  1. Absolute change in hemoglobin level at Week 12

    Time frame: From baseline (before treatment with Ferretab® comp.) to 12 weeks after treatment initiation (Visit 2)

    Absolute change in hemoglobin level (g/L) from baseline (Visit 0) to Week 12 (Visit 2)

Secondary outcomes

  1. Absolute change in hemoglobin level at Week 4

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks after treatment initiation (Visit 1)

    Absolute change in hemoglobin level (g/L) from baseline (Visit 0) to Week 4 (Visit 1)

  2. Proportion of patients achieving the target hemoglobin level

    Time frame: Week 4 (Visit 1) and Week 12 (Visit 2) after treatment initiation

    Proportion of patients achieving the target hemoglobin level (120-140 g/L in women or 130-160 g/L in men) at Week 4 (Visit 1) and Week 12 (Visit 2)

  3. Proportion of patients achieving treatment response

    Time frame: At Week 4 (Visit 1) and Week 12 (Visit 2) after treatment initiation

    Proportion of patients achieving treatment response (an increase in hemoglobin level by 10 g/L or more at Week 4 (Visit 1) and 20 g/L or more at Week 12 (Visit 2))

  4. Proportion of patients achieving the target ferritin level

    Time frame: At Week 4 (Visit 1) and Week 12 (Visit 2) after treatment initiation

    Proportion of patients achieving the target ferritin level (40 ng/mL or more) at Week 4 (Visit 1) and Week 12 (Visit 2).

  5. Change in ferritin level

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in ferritin level from baseline (Visit 0) at Week 4 (Visit 1) and Week 12 (Visit 2).

  6. Proportion of patients with an increase in hematocrit

    Time frame: At Week 4 (Visit 1) and Week 12 (Visit 2) after treatment initiation

    Proportion of patients with a 3% increase in hematocrit level (Hct) from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  7. Change in RBC count

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in red blood cell (RBC) count from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  8. Change in MCV

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in mean corpuscular volume (MCV) from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  9. Change in MCH

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in mean corpuscular hemoglobin (MCH) from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  10. Change in MCHC

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in mean corpuscular hemoglobin concentration (MCHC) from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  11. Proportion of patients with a reduction in the syndrome severity

    Time frame: At Week 4 (Visit 1) and Week 12 (Visit 2) after treatment initiation

    Change in sideropenic syndrome assessed by the doctor at Week 4 (Visit 1) and Week 12 (Visit 2), expressed as the proportion of patients with a reduction in the syndrome severity.

  12. Change in resting HR

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in resting HR from baseline (Visit 0) at Week 4 (Visit 1) and Week 12 (Visit 2).

  13. Change in the VAS score for dizziness

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in the VAS score for dizziness from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2).

  14. Change in the VAS score for edema severity

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in the VAS score for edema severity from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  15. Change in the VAS score for dyspnea

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in the VAS score for dyspnea from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  16. Change in the VAS score for fatigue

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in the VAS score for fatigue from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  17. Change in the VAS score for exercise tolerance

    Time frame: From baseline (before treatment with Ferretab® comp.) to 4 weeks (Visit 1) and 12 weeks after treatment initiation (Visit 2)

    Change in the VAS score for exercise tolerance from baseline (Visit 0) to Week 4 (Visit 1) and Week 12 (Visit 2)

  18. Adherence to Ferretab® comp.

    Time frame: During the 12-week treatment period, assessed at Weeks 4, 8, and 12

    Adherence to Ferretab® comp., assessed using Patient Diary data and an ordinal categorical scale during the course of treatment at Weeks 4, 8, and 12

  19. Total adherence to treatment with Ferretab® comp.

    Time frame: During the 12-week treatment period (overall assessment at Week 12)

    Total adherence to treatment with Ferretab® comp., assessed using Patient Diary data and an ordinal categorical scale

Other outcomes

  1. Convenience of use of Ferretab® comp.

    Time frame: At Week 12 (Visit 2) after treatment initiation

    Subjective assessment of the convenience of use of Ferretab® comp. at Visit 2

Study contacts

Contact information is provided by the study sponsor or research team.

Kirill Sokolov

CONTACT

[email protected]

+7 985 610-44-61

Sponsors and collaborators

Lead sponsor

Alcea

Other

Registry information

Official study title

A Multicenter, Non-Interventional, Prospective Study of Ferretab® Comp. (Ferrous Fumarate + Folic Acid Prolonged-Release Capsules) Effects in Adult Patients With Iron Deficiency Anemia and Cardiovascular Diseases in Real-World Clinical Practice

Acronym: PROMETHEUS

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Aug 7, 2026
Registry last updated
Aug 7, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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