ClinicalTrials.gg
Approved for marketingNCT05937568Updated Jun 24, 2024

Expanded Access for Treatment With Imetelstat

An expanded access record providing Imetelstat in Myelodysplastic Syndromes, sponsored by Geron Corporation. Approved for marketing. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-06-24.

Sponsored by Geron Corporation · Expanded access

Study type
Expanded access
Access type
Intermediate-size population
Ages
18 Years and older
Sex
All
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Study summary

The objective of this expanded access protocol (EAP) is to provide access to treatment with imetelstat, the Investigational Product (IP), for eligible adult participants diagnosed with very low, low, intermediate risk (by Revised International Prognostic Scoring System, IPSS-R) myelodysplastic syndromes (MDS) who are red blood cell (RBC) transfusion-dependent, have failed to respond or have lost response or are ineligible for ESAs, had not received prior treatment with either a hypomethylating agent or lenalidomide and were non-del(5q), until such time that imetelstat becomes commercially available.

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Conditions studied

  • Myelodysplastic Syndromes
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In context

Myelodysplastic Syndromes

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

Browse Myelodysplastic Syndromes studies →

Lead sponsor

Geron Corporation is the lead sponsor of 16 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All

Eligibility criteria

Key Inclusion Criteria:

  • Documented diagnosis of MDS according to World Health Organization (WHO) criteria confirmed by bone marrow aspirate and/or preferably within 24 but no more than 52 weeks prior to EAP start.
  • Very Low, Low, or Intermediate risk MDS (≤3.5) per IPSS-R.
  • Red blood cell (RBC) transfusion dependent, defined as requiring at least 4 RBC units over an 8-week period during the 16 weeks prior to EAP entry; pre-transfusion (Hb) should be less than or equal to 9.0 grams per deciliter (g/dL) to count towards the 4 units total.
  • Has MDS that has failed to respond or has lost response or are ineligible for ESAs.
  • To ensure participants have adequate iron stores they must have transferrin saturation greater than 20% and serum ferritin greater than 400 nanograms per milliliter (ng/mL).
  • (ECOG) performance status score of 0, 1 or 2.
  • Hematology and biochemical laboratory test values within the protocol defined limits.
  • Have no approved alternative treatment available.
  • Inability to participate in a current imetelstat clinical study for the disease or conditions.
  • Have a treating physician who has appropriately evaluated the benefit/risk profile for potential imetelstat treatment.

Key Exclusion Criteria:

  • Have previously assessed as having IPSS-R high or very high risk MDS.
  • Participant with del(5q) karyotype.
  • Participant with MDS/myeloproliferative neoplasm Overlap Syndromes.
  • Participant has known allergies, , or intolerance to imetelstat or its .
  • Participant has received an experimental or product or used an invasive investigational medical device within 30 days prior to EAP entry or is currently enrolled in an investigational study.
  • Prior treatment with imetelstat; or eligible for enrollment in an ongoing imetelstat clinical trial.
  • Prior treatment with lenalidomide or a hypomethylating agent (example, azacitidine, decitabine, or decitabine/cedazuridine).
  • Has received an ESA or any anti-MDS therapy, chemotherapy, immunomodulatory, or therapy within 4 weeks prior to EAP entry.
  • Prior history of hematopoietic stem cell transplant.

Note: Other protocol specified inclusion/exclusion criteria may apply.

Terms in these criteria, in plain language(7)

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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Access details

Study type
Expanded access
Access type
Intermediate-size population

Available treatment

  • Participants will receive imetelstat, intravenously (IV) by infusion every 4 weeks.

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Where to request access

No study locations are listed for this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 24, 2024, 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
NCT05937568
Lead sponsor
Geron Corporation
Responsible party
Sponsor
First posted
Jul 10, 2023
Last update
Jun 24, 2024
View the source record on ClinicalTrials.gov ↗

Requesting access

Expanded access is arranged between your doctor and the company. Ask your care team to contact the provider listed on this record.

No contact was published for this record. The registry link below has the sponsor’s details.

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Discussion

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