Study With Oral Ferric Maltol for the Treatment of Iron Deficiency Anemia in Subjects With Chronic Kidney Disease
Condition: Renal Insufficiency, Chronic; Iron-Deficiency Anemia
MeSH terms: Kidney Diseases; Renal Insufficiency, Chronic; Renal Insufficiency; Anemia; Anemia, Iron-Deficiency; Iron Deficiencies; Deficiency Diseases
Intervention: Ferric maltol; Placebo
Intervention MeSH terms: Ferric maltol
Phase: Phase 3
Study type: Interventional
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Enrollment: 167.0
Sex: All
Minimum age: 18 Years
Healthy volunteers: No

Summary:

      To evaluate the efficacy of oral ferric maltol compared with placebo in the treatment of IDA
      in subjects with CKD
    

Eligibility criteria:

        Inclusion Criteria:

          1. Ability to understand the information given in the Independent Ethics Committee (IEC)
             or Institutional Review Board (IRB) approved information sheet and consent form. Must
             sign and date the informed consent and authorization to use protected health
             information (PHI) in accordance with national and local subject privacy regulations
             prior to any study mandated procedure.

          2. Willing and able to comply with study requirements.

          3. Age ≥ 18 years at the time of informed consent.

          4. A current diagnosis of CKD with an estimated glomerular filtration rate (eGFR) of <60
             mL/min/1.73m2 and ≥15 mL/min/1.73m2, as calculated using the abbreviated version of
             the Modified Diet in Renal Disease equation (MDRD) assessed via screening laboratory
             results.

          5. Iron deficiency anemia defined by the following criteria assessed via screening
             laboratory results:

               1. Hb <11.0g/dL and ≥8.0g/dL

               2. AND ferritin <250ng/mL with a Transferrin saturation (TSAT) <25% OR ferritin
                  <500ng/mL with a TSAT of <15%

          6. Female subjects of childbearing potential (including perimenopausal females who have
             had a menstrual period within 1 year prior to screening) must agree to use a reliable
             method of contraception until study completion and for at least 4 weeks following
             their final study visit. Reliable contraception is defined as a method which results
             in a low failure rate, i.e., less than 1% per year when used consistently and
             correctly, such as implants, injectables, some intrauterine contraceptive devices
             (IUDs), complete sexual abstinence, a vasectomized partner and oral contraceptive
             medications. Female subjects who are surgically sterile (bilateral tubal ligation,
             bilateral oophorectomy or hysterectomy) or postmenopausal (defined as no menstrual
             period within 1 year of screening) are also allowed to participate.

        Exclusion Criteria:

          1. Anemia due to any cause other than iron deficiency, including, but not limited to:

               1. Untreated or untreatable severe malabsorption syndrome.

               2. Myelosuppression use (permitted if taken at a stable dose and frequency for at
                  least 12 weeks prior to randomization and are expected to stay stable throughout
                  the double-blind treatment period so long as there is no clinical evidence of the
                  myelosuppression contributing to the subject's anemia).

          2. Administration with any of the following prior to randomization:

               1. IV iron injection within the previous 4 weeks or administration of intramuscular
                  or depot iron preparation within the previous 12 weeks.

               2. Single agent oral iron supplementation, taken specifically to treat anemia (e.g.
                  ferrous sulfate, fumarate and gluconate) within the previous 2 weeks.
                  Multivitamins are permitted.

               3. Use if ferric citrate and sucroferric oxyhydroxide within the previous 1 week.

               4. ESAs within the previous 4 weeks

               5. Blood transfusion or donation within the previous 12 weeks.

               6. Dimercaprol or cloramphenicol within the previous 7 days.

               7. Current use of methyldopa.

          3. Currently receiving dialysis or initiation of dialysis is considered likely during the
             study.

          4. Renal transplant within 12 months prior to randomization or is considered likely
             during the study.

          5. Known hypersensitivity or allergy to the active substance or excipients of ferric
             maltol or placebo capsules.

          6. Contraindication for treatment with iron preparations, e.g. hemochromatosis, chronic
             hemolytic disease, sideroblastic anemia, thalassemia, or lead intoxication induced
             anemia.

          7. Impaired liver function as indicated by alanine aminotransferase (ALT) or aspartate
             transaminase (AST) > 3 times the upper limit of normal as assessed via screening
             laboratory results.

          8. Clinically significant vitamin B12 or folic acid deficiency as determined by the
             screening laboratory results (retest following at least 2 weeks of starting treatment
             with vitamin B12 or folate replacement is permitted).

          9. Pregnant or breast feeding.

         10. Concomitant medical conditions with significant active bleeding likely to initiate or
             prolong anemia; for example coagulation disorders or recurrent GI bleeding.

         11. Scheduled or expected major surgery during the course of the study. (Minor surgeries
             not associated with significant blood loss, in the Investigator's judgement, are
             permitted e.g. surgery related to fistulae or vascular access, minor dental
             extractions, incision and drainage of abscess or simple excisions).

         12. Participation in any other interventional clinical study within 30 days prior to
             screening.

         13. Cardiovascular, liver, renal, hematologic, psychiatric, neurologic, gastrointestinal,
             immunologic, endocrine, metabolic, or central nervous system disease that, in the
             opinion of the Investigator, may adversely affect the safety of the subject and/or
             efficacy of the study drug or severely limit the lifespan of the subject.

         14. Any other unspecified reason that, in the opinion of the Investigator or the Sponsor
             make the subject unsuitable for enrolment.