ClinicalTrials.gg
WithdrawnNCT02658162Updated May 25, 2018

A Study on SANGUINATE™ for the Reduction of Delayed Graft Function in Kidney Transplant Patients

A Phase 2 interventional study of SANGUINATE and Normal Saline in Delayed Function of Renal Transplant, sponsored by Prolong Pharmaceuticals. Withdrawn. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-05-25.

Sponsored by Prolong Pharmaceuticals · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Safety and efficacy study of SANGUINATE on reduction of delayed graft function (DGF) in patients who will be recipients of a donation after brain death (DBD) donor kidney.

Read the detailed description

Sixty (60) adult subjects who will be recipients of a donation after brain death (DBD) donor kidney and who meet all eligibility criteria will be randomized 1:1 within 48 hours prior to transplant surgery to receive: two infusions of SANGUINATE at a dose of 320 mg/kg or placebo on the day of surgery and approximately 24 hours after surgery. Patients will be hospitalized for up to 5 days and the study duration will be 30 days.

02

Conditions studied

  • Delayed Function of Renal Transplant
03

In context

Lead sponsor

Prolong Pharmaceuticals is the lead sponsor of 15 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
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

  1. Able to understand and provide written .
  2. Male or female subject at least 18 years of age.
  3. Dialysis-dependent renal failure initiated at least 3 months prior to transplantation.
  4. Subject is to be the recipient of a first kidney transplant from a deceased donor (brain death criteria).
  5. Is able to receive intravenous infusions of study drug.
  6. Anticipated donor organ cold ischemia time \< 30 hours.
  7. A calculated prediction of DGF risk of least 25%.
  8. Females of must agree to use 2 forms of effective regimen (at least one-barrier method) during the initial 30-day study period.
  9. Male subjects must agree to use condoms or other suitable means of pregnancy prevention.

Exclusion criteria

Exclusion Criteria:

  1. Has received a blood transfusion of packed red blood cells (PRBC), other than with leukocyte-poor blood, within the 90-day period prior to screening.
  2. Recipient of a live donor kidney or a kidney from a donation after cardiac death (DCD) donor.
  3. Recipient of donor kidney preserved with normothermic machine perfusion.
  4. Is scheduled to undergo multi-organ transplantation.
  5. Has planned transplant of kidney(s) from a donor \< 6 years of age.
  6. Has planned transplant of kidneys that are implanted en bloc (dual kidney transplant).
  7. Has planned transplant of dual kidneys (from the same donor) transplanted not en bloc.
  8. (BMI) > 38 kg/m2
  9. Machine perfused preservation donor kidney.
  10. Is scheduled for transplantation of a kidney from a donor who is known to have received an therapy (under another Investigational New Drug) for ischemic/reperfusion injury immediately prior to organ recovery.
  11. Is scheduled to receive an blood type-incompatible donor kidney.
  12. Has undergone desensitization to remove antibodies prior to transplantation.
  13. Total > 1.5 mg per dL, transaminase more than twice the or evidence of hepatic insufficiency
  14. Has participated in an investigational study within the last 30 days or received an investigational product within 5 half-lives of the study drug administration, whichever is longest. Potential subjects participating in a strictly observational study or a study involving approved treatments should be discussed with the Medical Monitor.
  15. Has a history of (HIV)
  16. History or presence of active substance abuse (illicit drugs or alcohol) in the previous 6 months, as believed by the Investigator
  17. Presence of -based evidence of acute myocardial infarction, unstable angina, decompensated heart failure, third degree heart block or cardiac arrhythmia associated with hemodynamic instability
  18. History or presence of any disease or psychiatric condition that in the Investigator's assessment that would increase the risk to subjects associated with study participation, drug administration or interpretation of results
  19. History of -confirmed within 5 years of randomization, with the exception of adequately treated basal cell or squamous cell carcinoma in situ skin lesions, carcinoma of the cervix in situ, or early detected prostate cancer.
  20. Female subject who is pregnant or breast feeding.
  21. Has a positive T- or B-cell cross-match by NIH anti-globulin lymphocytotoxicity method, if performed.
  22. Has a positive T- or B-cell cross-match AND donor specific anti-human leukocyte antigen (anti-HLA) antibody (DSA) detected by flow cytometry/Luminex based antigen-specific anti-HLA antibody testing, if performed.
Terms in these criteria, in plain language(11)

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.

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

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.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    SANGUINATE

    Two (2) infusions of SANGUINATE

    Drug: SANGUINATE

  • Placebo comparator
    Normal Saline

    Two (2) infusions of Normal Saline

    Drug: Normal Saline

Interventions

  • Two (2) infusions of 320 mg/kg of SANGUINATE at Baseline and Day 1

    Also known as: pegylated carboxyhemoglobin bovine

  • DrugNormal Saline

    Two (2) infusions of Normal Saline at an equal volume to SANGUINATE at Baseline and Day 1.

06

What researchers measure

Primary outcomes

  1. Reduction of delayed graft function (DGF)

    Reduction of delayed draft function will be measured by the number of dialysis sessions.

    Time frame: 30 Days

  2. Participants With at Least One Occurrence of Safety Composite Endpoint by Treatment Group.

    Composite endpoint defined by changes in vital signs, electrocardiographic, biochemical, hematological, and urinalysis, graft loss, death and other reported adverse events and Graft Survival - 30 Days

    Time frame: 30 Days

Secondary outcomes

  1. Proportion of subjects requiring dialysis for any reason in the first 7 days post-transplant

    Time frame: 7 Days

  2. Proportion of subjects requiring dialysis only in the first 5 days post-transplant

    Time frame: 5 Days

  3. Number of days of dialysis therapy.

    Time frame: 30 Days

  4. Proportion of subjects with a fall in serum creatinine.

    Time frame: 7 Days

  5. Proportion of subjects with a serum creatinine greater than 3 mg/dL, but who did not require dialysis by Day 5 post-transplant

    Time frame: 5 Days

  6. Change in estimated creatinine clearance before and after kidney transplantation.

    Time frame: 30 Days

  7. Change in estimated glomerular filtration rate before and after kidney transplantation.

    Time frame: 30 Days

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Feb 2016; primary completion for Oct 2018, 32 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 12, 2016
First posted
Jan 18, 2016
StartEst.
Feb 2016
Primary completionEst.
Oct 2018
CompletionEst.
Dec 2018
Last update
May 25, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 25, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02658162
Lead sponsor
Prolong Pharmaceuticals
Responsible party
Sponsor
First posted
Jan 18, 2016
Start date
Feb 2016 (estimated)
Primary completion
Oct 2018 (estimated)
Completion
Dec 2018 (estimated)
Last update
May 25, 2018

Study contacts

Hemant Misra, PhD
study director · Prolong Pharmaceuticals

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in May 2018. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: PEGylated carboxyhemoglobin bovine

Start the discussion