ClinicalTrials.gg
Not yet recruitingNCT07722988Updated Jul 23, 2026

A Study to Investigate the Efficacy and Safety of Roxadustat (FG-4592) for Treating Anemia in Participants With Myelodysplastic Syndromes (MDS)

A Phase 3 interventional study of Roxadustat and Placebo in Myelodysplastic Syndromes, sponsored by Kyntra Bio. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-23.

Sponsored by Kyntra Bio · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
201
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The study is designed to determine the efficacy and safety of roxadustat for the treatment of anemia due to very low, low, or intermediate risk MDS in participants with high transfusion burden (HTB).

02

Conditions studied

  • Myelodysplastic Syndromes

Keywords

  • Roxadustat
  • FG-4592
  • LR-MDS
  • MDS
  • Myelodysplastic syndromes
  • Oral
  • Transfusion
  • High transfusion burden
  • Anemia
  • Red blood cell
  • Transfusion independence
  • Hemoglobin
  • Kyntra Bio
  • Kyntra
  • FibroGen
  • KYNB
  • ESA
03

In context

Myelodysplastic Syndromes

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

This study's planned enrollment of 201 is above the median of 40 across 1,611 interventional studies indexed under Myelodysplastic Syndromes.

Browse Myelodysplastic Syndromes studies →

Lead sponsor

Kyntra Bio is the lead sponsor of 2 studies on the registry; 2 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

Eligibility criteria

Key Inclusion Criteria:

  • Diagnosis of MDS according to World Health Organization (WHO) criteria confirmed by bone marrow aspirate and within 12 weeks before randomization.
  • Revised International Prognostic Scoring System (IPSS-R) very low, low, or intermediate risk MDS
  • HTB: Participants requiring ≥ 4 units of packed red blood cell (pRBC) in two consecutive 8-week periods prior to randomization
  • to, intolerant to, or ineligible for prior erythropoiesis-stimulating agents (ESAs).
  • (ECOG) performance status 0, 1 or 2

Key Exclusion Criteria:

  • Pregnant or breastfeeding females
  • Participant has any significant medical illness or is considered vulnerable by local regulations
  • Prior or autologous stem cell transplant
  • Major surgery within 8 weeks prior to randomization.

Note: Other protocol-defined inclusion and exclusion criteria may apply.

Terms in these criteria, in plain language(4)

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.

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
201 participants (estimated)

Study arms

  • Experimental
    Roxadustat

    Participants will receive roxadustat, administered orally 3 times per week (TIW).

    Drug: Roxadustat

  • Placebo comparator
    Placebo

    Participants will receive placebo matching to roxadustat, administered orally TIW.

    Drug: Placebo

Interventions

  • Roxadustat will be administered per schedule specified in the arm description.

    Also known as: FG-4592

  • DrugPlacebo

    Placebo matching to roxadustat will be administered per schedule specified in the arm description.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Red Blood Cell-transfusion Independence (RBC-TI) Over Any Consecutive 56-day Period

    Time frame: Week 1 through Week 24

Secondary outcomes

  1. Percentage of Participants With RBC-TI Over Any Consecutive 84-day Period

    Time frame: Week 1 through Week 48 or end of treatment (EOT; up to 5 years)

  2. Percentage of Participants With RBC-TI Over Any Consecutive 112-day Period

    Time frame: Week 1 through Week 48 or EOT (up to 5 years)

  3. Percentage of Participants With ≥50% Reduction in Rate of Total Red Blood Cell (RBC) Units Transfused During a 16-week Period

    Time frame: Week 1 through Week 48 or EOT (up to 5 years)

  4. Percentage of Participants With RBC-TI Over Any Consecutive 168-day Period

    Time frame: Week 1 through Week 48 or EOT (up to 5 years)

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

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

Start is estimated for Apr 2027; primary completion for Sep 2030, 41 months later.

Of 26 industry-sponsored phase 3 interventional studies under Myelodysplastic Syndromes, half reached primary completion within 42 months of starting (the median), counting those still running; a quarter within 33 and three quarters within 52. This study's planned 41 months is close to that.

Counting every sponsor, half of 45 studies reached it within 50 months; a quarter within 38 and three quarters within 95.

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

Registered
Jul 20, 2026
First posted
Jul 23, 2026
StartEst.
Apr 2027
Primary completionEst.
Sep 2030
CompletionEst.
Dec 2032
Last update
Jul 23, 2026
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 Jul 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07722988
Lead sponsor
Kyntra Bio
Responsible party
Sponsor
First posted
Jul 23, 2026
Start date
Apr 2027 (estimated)
Primary completion
Sep 2030 (estimated)
Completion
Dec 2032 (estimated)
Last update
Jul 23, 2026

Study contacts

Mairead Carney
Contact
mcarney@kyntrabio.com
415-978-1337
Javier Moreno
Contact
jmoreno@kyntrabio.com
415-978-1466

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Roxadustat

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