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Telomerase Inhibitor

Imetelstat + Ruxolitinib for Myelofibrosis

Phase 1
Recruiting
Research Sponsored by Geron Corporation
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Candidate for ruxolitinib treatment: Part 1 participants only must be on ruxolitinib treatment for at least 12 weeks with at least 4 consecutive weeks immediately prior to enrollment at a stable dose. Part 2 participants only must be a candidate for ruxolitinib treatment as assessed by the investigator and has not previously been treated with a JAK inhibitor
Eastern Cooperative Oncology Group Performance Status score of 0, 1, or 2
Timeline
Screening 3 weeks
Treatment Varies
Follow Up from first dose of imetelstat treatment up to approximately 5 years
Awards & highlights

Study Summary

This trial is studying the recommended dosage of a combination of imetelstat and ruxolitinib to treat myelofibrosis, as well as the safety and effectiveness of this dosage.

Who is the study for?
This trial is for adults with a condition called myelofibrosis, who are either already on ruxolitinib treatment or haven't been treated with JAK inhibitors. They should have symptoms like an enlarged spleen or other related issues and must not be candidates for stem cell transplant. Participants need to meet certain blood and biochemical test criteria, have a performance status score of 0-2, and agree to use contraception.Check my eligibility
What is being tested?
The study tests the combination of two drugs: Imetelstat and Ruxolitinib in people with myelofibrosis. The first part determines the best dose of Imetelstat when used with Ruxolitinib, while the second part assesses safety and how well this combined dose works.See study design
What are the potential side effects?
Possible side effects include reactions at the injection site, changes in blood counts leading to increased risk of infections or bleeding, liver problems, fatigue, shortness of breath, gastrointestinal issues such as nausea or diarrhea.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I can take care of myself and am up and about more than half of my waking hours.
Select...
I have been diagnosed with a type of myelofibrosis according to specific health criteria.
Select...
My myelofibrosis is classified as intermediate-1, intermediate-2, or high-risk.
Select...
I have symptoms or an enlarged spleen due to myelofibrosis.
Select...
I cannot or do not want to have a stem cell transplant.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~from first dose of imetelstat treatment up to approximately 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and from first dose of imetelstat treatment up to approximately 5 years for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Part 1: Incidence, Type, and Severity of Adverse Events, Including Dose-limiting Toxicity (DLT) During the DLT Observation Period and/or Study Treatment
Part 2: Number of Participants With Treatment-emergent Adverse Event (AE)
Part 2: Symptom Response Rate at Week 24
Secondary outcome measures
Part 1 and 2: Duration of Response (DOR) Per IWG-MRT Criteria
Part 1 and 2: Imetelstat and Ruxolitinib Exposure From Time Zero to Last Measurable Concentration (AUC0-t)
Part 1 and 2: Percentage of Participants With Complete Remission (CR), Partial Remission (PR), Clinical Improvement (CI) Per the Modified 2013 International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria
+10 more

Side effects data

From 2018 Phase 2 trial • 80 Patients • NCT01731951
100%
Neutrophil count decreased
100%
Platelet count decreased
100%
White blood cell count decreased
89%
Fatigue
89%
Diarrhoea
89%
Anaemia
78%
Hyperglycaemia
78%
Dyspnoea
67%
Nausea
67%
Oedema peripheral
67%
Abdominal pain
56%
Activated partial thromboplastin time prolonged
44%
Pyrexia
44%
Aspartate aminotransferase increased
44%
Hypocalcaemia
44%
Cough
44%
Blood creatinine increased
44%
Alanine aminotransferase increased
44%
Anorexia
33%
Pain
33%
Sepsis
33%
Blood alkaline phosphatase increased
33%
Pain in extremity
33%
Hypotension
33%
Lung infection
33%
Early satiety
33%
Lipase increased
33%
Hyponatraemia
33%
Dizziness
33%
Hypoglycaemia
22%
Blood amylase increased
22%
Sinus tachycardia
22%
Chills
22%
Hyperkalaemia
22%
Hyperuricaemia
22%
Hypokalaemia
22%
Arthralgia
22%
Insomnia
22%
Atrial fibrillation
22%
Myalgia
22%
Alopecia
22%
Sinusitis
22%
Hypernatraemia
11%
Epistaxis
11%
Blood bilirubin increased
11%
Neck pain
11%
Peripheral sensory neuropathy
11%
Vomiting
11%
Non-cardiac chest pain
11%
Contusion
11%
Night sweats
11%
Abdominal distension
11%
Back pain
11%
Anxiety
11%
Haematoma
11%
Eye disorders
11%
Constipation
11%
Cardiac failure
100%
80%
60%
40%
20%
0%
Study treatment Arm
Arm D: Imetelstat 9.4 mg/kg (Blast-phase MF/Acute Myeloid Leukemia
Arm E: Imetelstat 7.5 - 9.4 mg/kg (MF [With Spliceosome Mutation or Ring Sideroblasts])
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)
Arm A: Imetelstat 9.4 mg/kg (MF)

Trial Design

1Treatment groups
Experimental Treatment
Group I: Imetelstat + RuxolitinibExperimental Treatment2 Interventions
Part 1: Participants who have received ruxolitinib orally (PO) as part of standard of care (SOC) for at least 12 weeks prior to Screening will be enrolled. After enrollment, participants will initiate imetelstat therapy. Dose levels of imetelstat may include 4.7, 6, 7.5, 9.4mg, until a RP2D is established. Part 2: Janus kinase (JAK) inhibitor naïve participants will receive initial treatment with ruxolitinib for at least 12 weeks, including 4 weeks at a stable dose, followed by imetelstat treatment at the RP2D in combination with ruxolitinib.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Ruxolitinib
2018
Completed Phase 3
~1140
Imetelstat
2012
Completed Phase 2
~100

Find a Location

Who is running the clinical trial?

Geron CorporationLead Sponsor
18 Previous Clinical Trials
1,411 Total Patients Enrolled
Tymara Berry, MDStudy DirectorGeron Corporation

Media Library

Imetelstat (Telomerase Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT05371964 — Phase 1
Myelofibrosis Research Study Groups: Imetelstat + Ruxolitinib
Myelofibrosis Clinical Trial 2023: Imetelstat Highlights & Side Effects. Trial Name: NCT05371964 — Phase 1
Imetelstat (Telomerase Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05371964 — Phase 1

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

How many people are partaking in this trial's treatments?

"Affirmative. The clinical trial data available on clinicaltrials.gov indicates that this medical experiment, first launched on May 4th 2022, is actively looking for participants to join its ranks. This study requires 41 people and 3 separate sites in total."

Answered by AI

Are any recruitment opportunities available for this clinical trial currently?

"Affirmative. Per the information accessible on clinicaltrials.gov, this medical study is presently looking for participants and was initially posted on May 4th 2022. The trial has since been updated to accept up to 41 patients from three different sites."

Answered by AI

Is Imetelstat a viable solution in terms of patient safety?

"Imetelstat has only been tested in a Phase 1 trial, so its safety is rated as a score of one. This indicates that there is limited evidence to support the drug's efficacy and security profile."

Answered by AI
~13 spots leftby Jun 2025