ClinicalTrials.gg
CompletedNCT02966028Updated Apr 15, 2021Results posted

Effect of SNF472 on Progression of Cardiovascular Calcification in End-Stage-Renal-Disease (ESRD) Patients on Hemodialysis (HD)

A Phase 2 interventional study of SNF472 and Placebo in Cardiovascular Diseases, Cardiovascular Abnormalities and Calcifications, Vascular, sponsored by Sanifit Therapeutics S. A.. Completed at 75 sites in 3 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-04-15.

Primary conditionCardiovascular AbnormalitiesRegistry: Cardiovascular DiseasesReclassifiedWhy we changed it
Registry
Cardiovascular Diseases — the first condition term the registry derived for this study.
ClinicalTrials.gg
Cardiovascular Abnormalities
Why
  1. The study's listed conditions name Cardiovascular Abnormalities, a narrower term within Cardiovascular Diseases.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Sanifit Therapeutics S. A. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
274
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The primary objective is to assess the effect of 2 dose levels of SNF472 (300 mg and 600 mg) compared to placebo on the progression of coronary artery calcium volume score over a 12-month (52 weeks) period in ESRD patients on HD

Read the detailed description

Reducing the progression of cardiovascular calcification (CVC) in HD patients may improve the severe burden of CV disease related to the underlying ESRD. As no therapy is currently indicated to target CVC, there is a need to investigate the ability of SNF472 to reduce CVC progression and, ultimately, to improve CV outcomes in HD patients. This phase 2b double-blind, randomised, placebo-controlled study is designed to assess the effect of SNF472 on the progression of CVC as measured by calcium volume and CAC/Agatston scores in ESRD patients receiving HD. The study hypothesis is that administration of SNF472 over 52 weeks can slow the progression of CVC in this patient population compared to placebo.

02

Conditions studied

  • Cardiovascular Diseases
  • Cardiovascular Abnormalities
  • Calcifications, Vascular
  • Endstage Renal Disease
  • ESRD
  • Coronary Artery Calcification

Keywords

  • CAC
  • calcium
  • ESRD
  • calcification
  • cardiovascular
  • heart
  • kidney
  • hemodialysis
  • Agatston
03

In context

Cardiovascular Abnormalities Reclassified

64 studies on the registry are indexed under Cardiovascular Abnormalities; 15 are open to participants now.

This study's enrollment of 274 is above the median of 66 across 36 interventional studies indexed under Cardiovascular Abnormalities.

Browse Cardiovascular Abnormalities studies →

Lead sponsor

Sanifit Therapeutics S. A. is the lead sponsor of 4 studies on the registry; none are open to participants now.

Compared within Cardiovascular Abnormalities, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Cardiovascular Diseases. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female or male patients, 18 to 80 years (inclusive) of age at randomisation
  • CAC score of 100 to 3500 AU (Agatston Units) inclusive within a 3-week period prior to randomisation as measured by a multi-detector CT scanner
  • Patients who are EITHER ≥ 55 years OR have a history of diabetes mellitus at randomisation
  • Patients on HD for ≥ 6 months prior to randomisation
  • Willing and able to understand and sign the

Exclusion criteria

Exclusion Criteria:

  • Scheduled date for kidney transplant from a known living donor
  • Weight above 300 lbs (136 kg)
  • Hospitalisation in the previous 3 months prior to randomisation for unstable angina, MI, stroke, , amputation or peripheral or coronary bypass surgery
  • History of unstable heart failure in the previous 3 months, defined as an unplanned presentation to a hospital or dialysis treatment facility with signs/symptoms of acute pulmonary edema and requiring ultrafiltration therapy
  • History of cancer that has been in remission for \< 5 years prior to randomisation. A history of basal cell carcinoma or Stage 1 squamous cell carcinoma of the skin is allowed
  • Pregnant or trying to become pregnant, currently breast-feeding, or of (including peri-menopausal women who have had a menstrual period within one year) and not willing to practice using a double barrier method (criteria apply to women only) at least 30 days post last dose of study medication
  • Hypocalcaemia defined as a serum calcium below 8.0 mg/dL (or 2.0 mmol/L) for the serum calcium most proximal to screening per patient's medical records
  • Extreme elevation in serum phosphorous, defined as a serum phosphorous above 10 mg/dL (or 3.23 mmol/L) within the last 2 months proximal to screening per patient's medical records
  • Uncontrolled hypertension defined as any 2 or more consecutive post-dialysis diastolic blood pressure (DBP) > 100 mmHg within the last 2 months proximal to screening expected survival \< 2 years in the Investigator's medical opinion
  • Known active drug or alcohol abuse within 1 year of randomisation
  • Use of other drugs within 30 days of randomisation
  • Non-compliance with dialysis treatment which, in the opinion of the Investigator, evidenced by either repeated missed dialysis treatments or significant non-compliance with the patient's medication regimen
  • Inability to comply with all required study procedures and schedule, inability to speak and read in the protocol-derived language of that patient's clinical site, or unwillingness or inability to give written
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
274 participants (actual)

Study arms

  • Experimental
    SNF472 300 mg

    Dose 1 arm (300 mg): 1 vial of physiological saline and 1 vial of active (10 mL SNF472 at 30 mg/mL)

    Drug: SNF472

  • Experimental
    SNF 472 600 mg

    Dose 2 arm (600 mg): 2 vials of active (10 mL SNF472 at 30 mg/mL)

    Drug: SNF472

  • Placebo comparator
    Matching Placebo

    Placebo arm: 2 vials of physiological saline

    Drug: Placebo

Interventions

  • DrugSNF472

    Administered 3 times weekly by intravenous infusion through the dialysis machine in conjunction with the patient's dialysis sessions.

  • DrugPlacebo

    Administered 3 times weekly by intravenous infusion through the dialysis machine in conjunction with the patient's dialysis sessions.

06

What researchers measure

Primary outcomes

  1. Change in Log CAC Volume Score From Baseline to Week 52 for the Combined Dose Groups vs Placebo

    Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups vs placebo. The primary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

Secondary outcomes

  1. Change in Log CAC Volume Score From Baseline to Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo

    Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups vs placebo. This secondary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for each dose group vs placebo. The analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for each of the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  2. Change in Log CAC Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and for the Combined Dose Groups vs the Placebo Group

    Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in Log CAC Agatston Score from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  3. Number of Subjects With <15% Progression in CAC Agatston Score From Baseline to Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo

    Agatston score is a semi-automated tool to calculate a score that reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. Change in Agatston Score values from baseline to Week 52 were calculated as a percentage of change (progression or worsening of calcification). The number of subjects with \<15% progression were counted.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  4. Number of Subjects With >=15% Progression in CAC Agatston Score at Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo

    Agatston score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. Change in Agatston Score values from baseline to Week 52 was calculated as a percentage of change (progression or worsening of calcification). The number of subjects with \>=15% progression were counted for each treatment group, the combined treatments groups and placebo.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  5. Change in Log Thoracic Aorta Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

    Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC volume score observed in the thoracic aorta was used for this analysis. The CAC volume Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups and each dose group vs placebo. The secondary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  6. Change in Log Thoracic Aorta Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

    Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score that reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in CAC Agatston Score in the thoracic aorta from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  7. Change in Log Aortic Valve Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

    Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC volume score observed in the aortic valve was used for this analysis. The CAC volume Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups and each dose group vs placebo. The secondary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  8. Change in Log Aortic Valve Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

    Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in Log CAC Agatston Score or the aortic valve from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

    Time frame: Baseline (Week 1, Day 1) and Week 52

  9. Number of Participants With the Composite Safety Endpoint (Cardiovascular Death, Nonfatal Myocardial Infarction, Non-fatal Stroke, Heart Failure or Non-fatal Cardiac Arrest.

    The number of subjects meeting this composite safety endpoint were counted and expressed by the randomized arm as a % of patients for the safety population.terms resulting in death from cardiovascular causes, myocardial infarction, stroke, or heart failure for each dose group and placebo were summarized .

    Time frame: Baseline (Week 1, Day 1) and Week 52

  10. Mortality Rate (All-cause) for Each Dose Group and Placebo

    The number of deaths were counted and expressed by the randomized arm as a % of patients for the safety population.

    Time frame: Baseline (Week 1, Day 1) and Week 52

07

Results

Posted Mar 16, 2021

Participant flow

Participant flow — Overall Study
MilestoneSNF472 300 mgSNF 472 600 mgMatching Placebo
Started929191
Completed685760
Not completed243431
Withdrew: Adverse event71310
Withdrew: Physician decision102
Withdrew: Withdrawal by subject755
Withdrew: Kidney transplant changed dialysis units91614

Outcome measures

PrimaryChange in Log CAC Volume Score From Baseline to Week 52 for the Combined Dose Groups vs Placebo

Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups vs placebo. The primary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log CAC Volume Score From Baseline to Week 52 for the Combined Dose Groups vs Placebo
ratioSNF472 300 mg & 600 mg CombinedMatching Placebo
Change in Log CAC Volume Score From Baseline to Week 52 for the Combined Dose Groups vs Placebo1.11 (1.067 to 1.153)1.20 (1.138 to 1.262)
SecondaryChange in Log CAC Volume Score From Baseline to Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo

Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups vs placebo. This secondary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for each dose group vs placebo. The analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for each of the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log CAC Volume Score From Baseline to Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo
ratioSNF472 300 mgSNF 472 600 mgMatching Placebo
Change in Log CAC Volume Score From Baseline to Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo1.12 (1.060 to 1.175)1.10 (1.042 to 1.165)1.20 (1.138 to 1.262)
SecondaryChange in Log CAC Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and for the Combined Dose Groups vs the Placebo Group

Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in Log CAC Agatston Score from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log CAC Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and for the Combined Dose Groups vs the Placebo Group
ratioSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Change in Log CAC Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and for the Combined Dose Groups vs the Placebo Group1.10 (1.027 to 1.170)1.13 (1.055 to 1.215)1.11 (1.060 to 1.170)1.20 (1.122 to 1.278)
SecondaryNumber of Subjects With <15% Progression in CAC Agatston Score From Baseline to Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo

Agatston score is a semi-automated tool to calculate a score that reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. Change in Agatston Score values from baseline to Week 52 were calculated as a percentage of change (progression or worsening of calcification). The number of subjects with \<15% progression were counted.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Count of participants · Participants
Number of Subjects With <15% Progression in CAC Agatston Score From Baseline to Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo
ParticipantsSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Number of Subjects With <15% Progression in CAC Agatston Score From Baseline to Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo46418737
SecondaryNumber of Subjects With >=15% Progression in CAC Agatston Score at Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo

Agatston score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. Change in Agatston Score values from baseline to Week 52 was calculated as a percentage of change (progression or worsening of calcification). The number of subjects with \>=15% progression were counted for each treatment group, the combined treatments groups and placebo.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Count of participants · Participants
Number of Subjects With >=15% Progression in CAC Agatston Score at Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo
ParticipantsSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Number of Subjects With >=15% Progression in CAC Agatston Score at Week 52 for Each Dose Group and the Combined Dose Groups vs Placebo31245540
SecondaryChange in Log Thoracic Aorta Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC volume score observed in the thoracic aorta was used for this analysis. The CAC volume Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups and each dose group vs placebo. The secondary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log Thoracic Aorta Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo
ratioSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Change in Log Thoracic Aorta Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo1.25 (1.156 to 1.346)1.21 (1.113 to 1.318)1.23 (1.161 to 1.302)1.28 (1.187 to 1.381)
SecondaryChange in Log Thoracic Aorta Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score that reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in CAC Agatston Score in the thoracic aorta from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log Thoracic Aorta Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo
ratioSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Change in Log Thoracic Aorta Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo1.30 (1.186 to 1.432)1.28 (1.149 to 1.416)1.29 (1.201 to 1.384)1.32 (1.205 to 1.452)
SecondaryChange in Log Aortic Valve Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

Coronary Artery Calcification (CAC) Volume Score is a calculation to quantify the calcification of coronary artery calcium without factoring in the calcium density as measured by the CAC Agatston Score. The CAC volume score observed in the aortic valve was used for this analysis. The CAC volume Score was log-transformed and the primary outcome measure was the change in Log CAC Volume Score from Baseline to Week 52 for the combined dose groups and each dose group vs placebo. The secondary analysis used an ANCOVA model with the change in log volume score (log 52-week volume score - log baseline volume score) as the dependent variable and with a fixed effect term for the combined randomized treatment groups and log CAC volume score at baseline as a covariate. The least squares means for the treatment groups was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log Aortic Valve Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo
ratioSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Change in Log Aortic Valve Calcification Volume Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo1.28 (1.143 to 1.426)1.01 (0.899 to 1.144)1.14 (1.048 to 1.235)1.98 (1.768 to 2.226)
SecondaryChange in Log Aortic Valve Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo

Coronary Artery Calcification (CAC) Agatston Score is a semi-automated tool to calculate a score the reflects the extent of coronary artery calcification as detected by an unenhanced CT scan. Scores range from 0 to \>1000 Agatston units where higher scores indicate an increased amount of calcification and an increased risk for a major adverse cardiac event. This secondary outcome measure was the change in Log CAC Agatston Score or the aortic valve from Baseline to Week 52 for each dose group and the treated arms combined vs placebo. The analysis used an ANCOVA model with the change in log score (log 52-week score - log baseline score) as the dependent variable and with a fixed effect term for each randomized treatment groups and log CAC score at baseline as a covariate. The least squares means for each of the treatment groups separately and combined was estimated and back transformed. A smaller change from baseline to follow up is a better outcome.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Geometric least squares mean · ratio
Change in Log Aortic Valve Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo
ratioSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Change in Log Aortic Valve Calcification Agatston Score Between Baseline and Week 52 for Each Dose Group (300 mg and 600 mg) vs Placebo and the Combined Dose Groups vs Placebo1.33 (1.141 to 1.541)0.98 (0.836 to 1.160)1.14 (1.022 to 1.277)2.86 (2.449 to 3.349)
SecondaryNumber of Participants With the Composite Safety Endpoint (Cardiovascular Death, Nonfatal Myocardial Infarction, Non-fatal Stroke, Heart Failure or Non-fatal Cardiac Arrest.

The number of subjects meeting this composite safety endpoint were counted and expressed by the randomized arm as a % of patients for the safety population.terms resulting in death from cardiovascular causes, myocardial infarction, stroke, or heart failure for each dose group and placebo were summarized .

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Count of participants · Participants
Number of Participants With the Composite Safety Endpoint (Cardiovascular Death, Nonfatal Myocardial Infarction, Non-fatal Stroke, Heart Failure or Non-fatal Cardiac Arrest.
ParticipantsSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Number of Participants With the Composite Safety Endpoint (Cardiovascular Death, Nonfatal Myocardial Infarction, Non-fatal Stroke, Heart Failure or Non-fatal Cardiac Arrest.761310
SecondaryMortality Rate (All-cause) for Each Dose Group and Placebo

The number of deaths were counted and expressed by the randomized arm as a % of patients for the safety population.

Time frame:
Baseline (Week 1, Day 1) and Week 52
Reported as:
Count of participants · Participants
Mortality Rate (All-cause) for Each Dose Group and Placebo
ParticipantsSNF472 300 mgSNF 472 600 mgSNF 472 Combined Dose GroupsMatching Placebo
Mortality Rate (All-cause) for Each Dose Group and Placebo1675

Adverse events

Collected over Collected over one year. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
SNF472 300 mg1/92 (1.1%)38/92 (41.3%)62/92 (67.4%)
SNF 472 600 mg6/91 (6.6%)55/91 (60.4%)64/91 (70.3%)
Matching Placebo5/90 (5.6%)49/90 (54.4%)67/90 (74.4%)
Most frequent serious events
Showing 10 of 167
Most frequent serious events
EventSNF472 300 mgSNF 472 600 mgMatching Placebo
Renal TransplantSurgical and medical procedures6/9214/9111/90
PneumoniaInfections and infestations4/923/917/90
Acute myocardial infarctionCardiac disorders1/921/914/90
Gastrointestinal haemorrhageGastrointestinal disorders0/924/910/90
Fluid overloadMetabolism and nutrition disorders1/921/913/90
Chest painGeneral disorders1/920/913/90
Arteriovenous fistula site complicationInjury, poisoning and procedural complications1/923/911/90
Atrial fibrillationCardiac disorders3/923/912/90
Cardiac arrestCardiac disorders1/923/910/90
Atrial flutterCardiac disorders0/923/910/90
Most frequent other events
Showing 10 of 12
Most frequent other events
EventSNF472 300 mgSNF 472 600 mgMatching Placebo
DiarrhoeaGastrointestinal disorders7/9211/9110/90
Abdominal pain upperGastrointestinal disorders11/922/912/90
CoughRespiratory, thoracic and mediastinal disorders10/929/918/90
VomitingGastrointestinal disorders1/928/914/90
Pain in extremityMusculoskeletal and connective tissue disorders7/927/917/90
DyspnoeaRespiratory, thoracic and mediastinal disorders5/927/917/90
Upper respiratory tract infectionInfections and infestations2/924/916/90
NasopharyngitisInfections and infestations3/921/916/90
Musculoskeletal painMusculoskeletal and connective tissue disorders3/926/915/90
Back painMusculoskeletal and connective tissue disorders6/922/914/90

Baseline characteristics

One subject randomized to placebo discontinued from the trial prior to the initiation of the study drug. The number of subjects treated and analyzed was 273 and the number of subjects randomized was 274.

Age, Categorical
Age, Categorical(Participants)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
<=18 years0000
Between 18 and 65 years545140145
>=65 years384050128
Age, Continuous
Age, Continuous(years)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
Mean63 ± 9.564 ± 8.964. ± 8.263.5 ± 8.9
Sex: Female, Male
Sex: Female, Male(Participants)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
Female383633107
Male545557166
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
Hispanic or Latino31363299
Not Hispanic or Latino605156167
Unknown or Not Reported1427
Race (NIH/OMB)
Race (NIH/OMB)(Participants)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
American Indian or Alaska Native2002
Asian24410
Native Hawaiian or Other Pacific Islander0101
Black or African American27151961
White596762188
More than one race1001
Unknown or Not Reported14510
Region of Enrollment
Region of Enrollment(participants)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
United States585354165
United Kingdom63514
Spain28353194
CAC Agatston Score
CAC Agatston Score(units on a scale)SNF472 300 mgSNF 472 600 mgMatching PlaceboTotal
Mean917 ± 697963 ± 702965 ± 762948 ± 744
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Study locations

75 sites
  • Bakersfield, California 93308, United States
  • Chula Vista, California 91910, United States
  • Escondido, California 92025, United States
  • Granada Hills, California 91344, United States
  • La Palma, California 90623, United States
  • Long Beach, California 90807, United States
  • Los Angeles, California 90048, United States
  • Lynwood, California 90262, United States
  • Northridge, California 91324, United States
  • Riverside, California 92505, United States
  • San Diego, California 92111, United States
  • San Dimas, California 91773, United States
  • Simi Valley, California 93065, United States
  • Tarzana, California 91356, United States
  • Whittier, California 90603, United States
  • Arvada, Colorado 80002, United States
  • Westminster, Colorado 80031, United States
  • Middlebury, Connecticut 06762, United States
  • Orange, Connecticut 06477, United States
  • Hollywood, Florida 33024, United States
  • Lauderdale Lakes, Florida 33313-1638, United States
  • Miami Gardens, Florida 33169, United States
  • Miami, Florida 33133, United States
  • Ocala, Florida 34471, United States
  • Tampa, Florida 33614, United States
  • Evanston, Illinois 60201, United States
  • Shreveport, Louisiana 71101, United States
  • Pontiac, Michigan 48341, United States
  • Roseville, Michigan 48066, United States
  • Brookhaven, Mississippi 39601, United States
  • Las Vegas, Nevada 89106, United States
  • Reno, Nevada 89511, United States
  • North Brunswick, New Jersey 08902, United States
  • Bronx, New York 10461, United States
  • College Point, New York 11356, United States
  • Asheville, North Carolina 28801, United States
  • Cincinnati, Ohio 45267, United States
  • Bethlehem, Pennsylvania 18017, United States
  • Knoxville, Tennessee 37923, United States
  • Arlington, Texas 76015, United States
  • Houston, Texas 77024, United States
  • Houston, Texas 77099, United States
  • Richardson, Texas 75080, United States
  • San Antonio, Texas 78207, United States
  • Chesapeake, Virginia 23320, United States
  • Wauwatosa, Wisconsin 53226, United States
  • Palma de Mallorca, Balearic Islands 07198, Spain
  • Barcelona, Catalonia 08025, Spain
  • Palma, Illes Balears 07011, Spain
  • Palma, Islas Baleares 07120, Spain
  • Galdakao, Vizcaya 48960, Spain
  • Barcelona, 08003, Spain
  • Barcelona, 08035, Spain
  • Barcelona, 08036, Spain
  • Barcelona, 08208, Spain
  • Barcelona, 08970, Spain
  • Córdoba, 14004, Spain
  • Lleida, 25008, Spain
  • Lleida, 25198, Spain
  • Lugo, 27003, Spain
  • Madrid, 28040, Spain
  • Navarro, 31008, Spain
  • Oviedo, 33011, Spain
  • Palma, 07300, Spain
  • Santander, 39008, Spain
  • Sevilla, 41007, Spain
  • Valencia, 46010, Spain
  • Valencia, 46017, Spain
  • Zaragoza, 50009, Spain
  • Bradford, BD5 0NA, United Kingdom
  • Manchester, M13 9WL, United Kingdom
  • Salford, M6 8HD, United Kingdom
  • Shrewsbury, SY3 8XQ, United Kingdom
  • Swansea, SA6 6NL, United Kingdom
  • Westcliff-on-Sea, SS0 0RY, United Kingdom
09

References and documents

Publications

  • Bushinsky DA, Raggi P, Bover J, Ketteler M, Bellasi A, Rodriguez M, Sinha S, Garg R, Perello J, Gold A, Chertow GM; CaLIPSO Investigators*; CaLIPSO Study Group and Clinipace GmbH, Intrinsic Imaging, LLC. Effects of Myo-inositol Hexaphosphate (SNF472) on Bone Mineral Density in Patients Receiving Hemodialysis: An Analysis of the Randomized, Placebo-Controlled CaLIPSO Study. Clin J Am Soc Nephrol. 2021 May 8;16(5):736-745. doi: 10.2215/CJN.16931020. Epub 2021 Apr 7. PubMed 33835939 ↗
  • Raggi P, Bellasi A, Bushinsky D, Bover J, Rodriguez M, Ketteler M, Sinha S, Salcedo C, Gillotti K, Padgett C, Garg R, Gold A, Perello J, Chertow GM. Slowing Progression of Cardiovascular Calcification With SNF472 in Patients on Hemodialysis: Results of a Randomized Phase 2b Study. Circulation. 2020 Mar 3;141(9):728-739. doi: 10.1161/CIRCULATIONAHA.119.044195. Epub 2019 Nov 11. PubMed 31707860 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02966028
Lead sponsor
Sanifit Therapeutics S. A.
Collaborators
Clinipace Worldwide
Responsible party
Sponsor
First posted
Nov 17, 2016
Start date
Nov 2016
Primary completion
Aug 2019
Completion
Sep 2019
Results posted
Mar 16, 2021
Last update
Apr 15, 2021

Study contacts

Alex Gold, MD
study director · Sanifit Chief Medical Officer

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: SNF472

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