ClinicalTrials.gg
CompletedNCT03433781Updated Mar 27, 2024Results posted

A Phase Ib Study Evaluating the Safety and Tolerability of Vitamin C in Patients With Intermediate or High Risk Myelodysplastic Syndrome With TET2 Mutations

A Phase 1/2 interventional study of Vitamin C in Myelodysplastic Syndromes, sponsored by NYU Langone Health. Completed at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-03-27.

Sponsored by NYU Langone Health · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
4
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 10 studies testing Ascorbic Acid in Myelodysplastic Syndromes — 1 open to participants now, 2 under way, none of them phase 3. Ascorbic Acid · Myelodysplastic Syndromes.

Enrollment
10th of 10
4 · median 23
Started
2018
with 1 other
Phase 1/2
Only one
of the 10
Registered
7th of 10
by date
Lead sponsor
1 of 10
NYU Langone Health

Among the 10 studies testing Ascorbic Acid in Myelodysplastic Syndromes, this one is the 10th largest by enrollment, is one of 2 that started in 2018, is the only one in phase 1/2, and was the 7th registered.

Myelodysplastic Syndromes

1,997 studies on the registry are indexed under Myelodysplastic Syndromes; 324 are open to participants now.

Browse Myelodysplastic Syndromes studies →

Open to participants now

1 of the 10 studies testing Ascorbic Acid in Myelodysplastic Syndromes is open now, in 2 countries. Recruiting first, the newest first:

By country, each count listing its studies:

About Ascorbic Acid

Ascorbic Acid: first FDA approval 1947 (BEROCCA PN). What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 262 Myelodysplastic Syndromes studies recruiting now, 165 (63%) set no upper age limit and 70 (27%) stop at 75 or younger; 57 take children under 18; 17 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 10 studies testing Ascorbic Acid in Myelodysplastic Syndromes, or all of them as a file.
02

Study summary

This is an open label, Phase Ib study designed to evaluate the safety, toxicity and biological activity of high dose Vitamin C in bone marrow and peripheral blood when administered as therapy to patients with intermediate or high risk myelodysplastic syndrome according to the revised IPSS (international prognostic scoring system) criteria whose disease has a Ten-eleven translocation-2, (TET2) mutation. The primary objectives phase 1 study is to establish safety and confirm a steady level of Vitamin C on ≥1 mM in > 75% of the patients is achieved. All patients will receive at least 1 cycle of treatment (4 weeks). Patients with clinical benefit (CR,PR, or SD) then will undergo a second 4-week cycle of treatment.

03

Conditions studied

  • Myelodysplastic Syndromes

Keywords

  • ASCORBIC ACID
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

  • Age ≥18 years
  • confirmed Myelodysplastic Syndrome with positive TET2 mutations (We will test all MDS patients for TET2 mutations using next generation sequencing and only patients with TET2 mutations will be included in our study)
  • Myeloblasts account for less than 20% of leukocytes on peripheral blood and bone marrow aspirate
  • (ECOG) performance status ≤2 (Appendix 1)
  • Adequate organ function

    1. ≥20,000/μL
    2. ≥ 500/μL
    3. \< 1.5 x institutional (ULN) or \< 3 x ULN in patients with Gilbert's disease or liver involvement
    4. Serum albumin ≥ 2.0 g/dL
    5. (AST)/Alanine aminotransferase (ALT) ≤2.5 institutional ULN or, in the case of liver involvement by the primary disease AST/ALT ≤ 5 x ULN
    6. Creatinine≤1.5 x institutional ULN or estimated of ≥45 mL/min by the Cockcroft-Gault equation or measured creatinine clearance >45 mL/min
  • Females of child bearing potential must have a negative serum pregnancy test with 7 days prior to first dose of treatment and use 2 methods of while on treatment
  • Ability to understand and the willingness to sign a written document
  • Patients currently receiving or who previously received Hydroxyurea, Erythrocyte stimulating agents (ESA), or granulocyte colony stimulating factors (G-CSF) are allowed to participate in the study.

Exclusion criteria

Exclusion Criteria:

  • Concurrent hypomethylation agent usage; the last dose of treatment must be ≥4 weeks before the start of the Vitamin C infusion
  • Myeloblast count ≥20% in peripheral blood or bone marrow aspirate
  • Major surgery within 2 weeks prior to first dose of study drug
  • stem cell transplant
  • Any previous chemotherapy agent other than hypomethylating agents (e.g., Venetoclax)
  • Uncontrolled concurrent serious illness
  • Concurrent or history of a previous malignancy within 1 year prior to first dose of the current study, unless curatively resected basal, squamous cell carcinoma of the skin, breast ductal/lobular carcinoma in situ or cervical carcinoma in situ.
  • Active infections including carrier status, virus (HCV) infection (patients must have a negative Hep B and Hep C viral load at screening)
  • Known -positive status
  • Any significant medical conditions, laboratory abnormality, or psychiatric illness that would exclude the subject from participation or interfere with study treatment, monitoring and compliance such as:

    1. Unstable angina pectoris, symptomatic congestive heart failure ( III or IV), myocardial infarction ≤ 6 months prior to first study drug, and uncontrolled cardiac arrhythmia (e.g. atrial fibrillation/flutter ventricular cardiovascular physiology is allowed), cerebrovascular accidents ≤ 6 months before study drug start
    2. Severely impaired lung function
  • Serious, systemic infection requiring treatment ≤7 days before the first dose of study drug
  • Any severe, uncontrolled disease or condition which in the investigator's opinion, may put the subject at significant risk, may confound the study results, or impact the subject's participation in the study
  • History of any renal calculi or hyperoxaluria or any other preexisting renal disorder
  • History of G6PD deficiency, hereditary spherocytosis or hemochromatosis
  • Patients on therapeutic or prophylactic anticoagulation will be excluded from enrollment on the protocol. However, patients can remain on the study if they develop a thrombosis that requires therapeutic anticoagulation during the course of protocol therapy
  • Uncontrolled hyponatremia, SIADH, hypokalemia, hyerpkalemia, hypomagnesemia or hypermagnesemia
Terms in these criteria, in plain language(17)

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

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.

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.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

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.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
4 participants (actual)

Study arms

  • Experimental
    Vitamin C 50 g

    Patients will receive Vitamin C as a continuous intravenous infusion (CIVI) of 50 grams (g) daily over 24 hours for 5 days for total of 250 grams over 5 days up.

    Drug: Vitamin C

  • Experimental
    Vitamin C 75 g

    Patients will receive Vitamin C as a continuous intravenous infusion (CIVI) of 75 grams (g) daily over 24 hours for 5 days for total of 375 grams over 5 days.

    Drug: Vitamin C

  • Experimental
    Vitamin C 100 g

    Patients will receive Vitamin C as a continuous intravenous infusion (CIVI) of 100 grams (g) daily over 24 hours for 5 days for total of 500 grams over 5 days.

    Drug: Vitamin C

Interventions

  • All patients will receive at least 1 cycle of treatment (4 weeks) of Vitamin C as a continuous intravenous infusion (CIVI). Patients with clinical benefit (CR, PR, or SD) then will undergo a second 4-week cycle of treatment. Patients to receive a maximum of 16 weeks of treatment (4 cycles). If a patient progress after receiving a cycle of treatment then the patient will be withdrawn from the study. Patients will be maintained on 1 gram oral Vitamin C daily from the end of the CIVI until the beginning of the next cycle (from day 6 till 28).

    Also known as: ascorbic acid, ascorbate

06

What researchers measure

Primary outcomes

  1. Number of Patients Who Experienced a Dose Limiting Toxicity (DLT)

    DLT is defined as grade 3 or higher of any duration or as a Grade ≥2 adverse event (AE) that persists for ≥96 hours with the exception of Grade ≥ 2 AEs clearly related to the underlying MDS

    Time frame: Week 16

07

Results

Posted Mar 27, 2024

Participant flow

Participant flow — Overall Study
MilestoneVitamin C 50 gVitamin C 75 gVitamin C 100 g
Started130
Completed020
Not completed110
Withdrew: Progression of disease100
Withdrew: Physician decision010

Outcome measures

PrimaryNumber of Patients Who Experienced a Dose Limiting Toxicity (DLT)

DLT is defined as grade 3 or higher of any duration or as a Grade ≥2 adverse event (AE) that persists for ≥96 hours with the exception of Grade ≥ 2 AEs clearly related to the underlying MDS

Time frame:
Week 16
Reported as:
Count of participants · Participants
Number of Patients Who Experienced a Dose Limiting Toxicity (DLT)
ParticipantsVitamin C 50 gVitamin C 75 gVitamin C 100 g
Number of Patients Who Experienced a Dose Limiting Toxicity (DLT)000

Adverse events

Collected over 4 years. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Vitamin C 50 g0/1 (0%)1/1 (100%)1/1 (100%)
Vitamin C 75 g0/3 (0%)0/3 (0%)3/3 (100%)
Vitamin C 100 g———
Most frequent serious events
Most frequent serious events
EventVitamin C 50 gVitamin C 75 gVitamin C 100 g
PancytopeniaBlood and lymphatic system disorders1/10/3—
Pain in ExtremityMusculoskeletal and connective tissue disorders1/10/3—
Catheter Related InfectionInfections and infestations1/10/3—
Most frequent other events
Most frequent other events
EventVitamin C 50 gVitamin C 75 gVitamin C 100 g
AnemiaBlood and lymphatic system disorders1/11/3—
LeukopeniaBlood and lymphatic system disorders1/11/3—
NeutropeniaBlood and lymphatic system disorders1/11/3—

Baseline characteristics

No patients were enrolled into the Vitamin C 100g arm.

Age, Continuous
Age, Continuous(years)Vitamin C 50 gVitamin C 75 gVitamin C 100 gTotal
Median73 ± 076 ± 2.49—74 ± 2.49
Sex: Female, Male
Sex: Female, Male(Participants)Vitamin C 50 gVitamin C 75 gVitamin C 100 gTotal
Female0202
Male1102
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Vitamin C 50 gVitamin C 75 gVitamin C 100 gTotal
Hispanic or Latino00—0
Not Hispanic or Latino13—4
Unknown or Not Reported00—0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Vitamin C 50 gVitamin C 75 gVitamin C 100 gTotal
American Indian or Alaska Native00—0
Asian00—0
Native Hawaiian or Other Pacific Islander00—0
Black or African American01—1
White12—3
More than one race00—0
Unknown or Not Reported00—0
Region of Enrollment
Region of Enrollment(participants)Vitamin C 50 gVitamin C 75 gVitamin C 100 gTotal
United States13—4
08

Study locations

2 sites
  • University of Miami Miller School of Medicine -Sylvester Cancer Center
    Miami, Florida 33136, United States
  • New York University School of Medicine
    New York, New York 10016, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2018 to primary completion in Nov 2022, 54 months.

Results were first posted in Mar 2024, 1 year 4 months after primary completion.

Of 68 non-industry phase 1/2 interventional studies under Myelodysplastic Syndromes, half reached primary completion within 72 months of starting (the median), counting those still running; a quarter within 49 and three quarters within 142. This study's 54 months is below that.

Counting every sponsor, half of 109 studies reached it within 78 months; a quarter within 49 and three quarters within 110.

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

Registered
Feb 8, 2018
First posted
Feb 15, 2018
StartActual
May 1, 2018
Primary completionActual
Nov 6, 2022
CompletionActual
May 16, 2023
Results first posted
Mar 27, 2024
Last update
Mar 27, 2024
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 Mar 27, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03433781
Lead sponsor
NYU Langone Health
Collaborators
Perlmutter New York University Cancer Center
Responsible party
Sponsor
First posted
Feb 15, 2018
Start date
May 1, 2018
Primary completion
Nov 6, 2022
Completion
May 16, 2023
Results posted
Mar 27, 2024
Last update
Mar 27, 2024

Study contacts

Mohammad M Abdul Hay, MD
principal investigator · NYU Langone Health

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Ascorbic Acid

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