ClinicalTrials.gg
RecruitingNCT06519786Updated Jul 25, 2024

Safety and Efficacy of Metformin for Treatment of Cytopenia in Children and Adolescents With Fanconi Anemia

A Phase 3 interventional study of Metformin in Fanconi Anemia, sponsored by Ain Shams University. Recruiting at 2 sites in Egypt. Open to participants aged 5 Years to 18 Years. Per ClinicalTrials.gov, last updated 2024-07-25.

Sponsored by Ain Shams University · Phase 3, Interventional, and Supportive care

From the registry’s dates

  • Primary completion was expected by Oct 2024, 2 years 1 month ago, but the record still lists the study as recruiting.
  • Registered 1 year 2 months after the study started (first participant enrolled Oct 2022, registered Dec 2023).
  • Started Oct 2022; still recruiting 4 years 1 month later.
Phase
Phase 3
Study type
Interventional
Enrollment
30
Allocation
Non-randomized
Ages
5 Years to 18 Years
Sex
All
01

Study summary

Prospective interventional open-label non-randomized controlled trial to assess safety and efficacy of metformin in treating cytopenia in children and adolescents with Fanconi Anemia.

Read the detailed description

Fanconi anemia (FA) is a genetic disease characterized by bone marrow failure, cancer susceptibility, and developmental abnormalities. Allogeneic hematopoietic stem cell transplantation offers curative therapy for hematologic complications of FA.

Oxymetholone is commonly used in the management of FA as it improves blood counts, red cells, and platelets. However, its use is limited by its high toxicity profile.

Metformin is a potential agent that reduces levels of both chromosomal radials and breaks in FA cells and increases the size of the hematopoietic stem cell compartment thus reducing cytopenia in patients with FA.

02

Conditions studied

  • Fanconi Anemia

Browse trials for

03

In context

Fanconi Anemia

95 studies on the registry are indexed under Fanconi Anemia; 20 are open to participants now.

This study's planned enrollment of 30 is above the median of 21 across 61 interventional studies indexed under Fanconi Anemia.

Browse Fanconi Anemia studies →

Lead sponsor

Ain Shams University is the lead sponsor of 1,953 studies on the registry; 430 are open to participants now.

Of its 35 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

04

Who can participate

Ages eligible
5 Years to 18 Years
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: 5 to 18 years
  • Patients who are diagnosed with Fanconi anemia based on clinical features and confirmed by increased chromosomal breakage on diepoxybutane (DEB) stress testing.
  • Presence of cytopenia (at least one of the following: (Hb) \< 10 g/dL, count \< 100 x 109/L, or an (ANC) \< 1.0 x 109/L
  • Patients receiving other therapies e.g., androgens are eligible for enrollment after a one-month before the start of metformin.

Exclusion criteria

Exclusion Criteria:

  • Patients who underwent bone marrow transplantation.
  • Patients with evidence of myelodysplasia, leukemia, or other concurrent .
  • Patients who have a history of allergic reactions to metformin or similar compounds.
  • Patients with a history of symptomatic hypoglycemia over the past year or hypoglycemia \< 50 mg/dL on screening and baseline laboratory assessments.
  • Patients with type 1 diabetes mellitus.
  • Patients with vitamin B12 deficiency.
  • Patients with Glucose-6-Phosphate Dehydrogenase deficiency.
  • Patients with abnormal Kidney function tests including serum creatinine, elevated liver function tests including live enzymes ( or AST > 135 U/L, total > 1.5 x for age, and/or patients with metabolic acidosis (bicarbonate \< 17 meq/L on venous blood gases).
Terms in these criteria, in plain language(8)

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.

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).

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.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

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.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Supportive care
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Metformin group

    Patients will receive metformin immediate-release tablets orally for 24 weeks. Starting dose will be 500 mg once daily for all patients and the dose will be increased by 500 mg weekly until the goal dose is achieved (500 mg twice daily for patients \< 10 years of age, and 1000 mg twice daily for patients 10 years or older).

    Drug: Metformin

  • No intervention
    Other treatment group

    Patients will receive supportive treatment as indicated

Interventions

  • Patients will receive metformin immediate-release tablets orally for 24 weeks. Starting dose will be 500 mg once daily for all patients and the dose will be increased by 500 mg weekly until the goal dose is achieved (500 mg twice daily for patients \< 10 years of age, and 1000 mg twice daily for patients 10 years or older)

    Also known as: Glucophage

06

What researchers measure

Primary outcomes

  1. Hematologic response (erythroid)

    Erythroid response (pretreatment, \< 11 g/dL): Hgb increase by \> 1.5 g/dL or Relevant reduction of units of RBC transfusions by an absolute number of at least 4 RBC transfusions/8 wk compared with the pretreatment transfusion number in the previous 8 wk.

    Time frame: 24 weeks

  2. Hematologic response (platelets)

    Platelet response (pretreatment, \< 100x10e9/L): Absolute increase of \> 30 x 10e9/L for patients starting with \> 20 x 10e9/L platelets or Increase from \< 20 x 10e9/L to \> 20 x10e9/L and by at least 100%

    Time frame: 24 weeks

  3. Hematologic response (Neutrophil count)

    Neutrophil response (pretreatment, \< 1.0 x 10e9/L): At least 100% increase and an absolute increase \> 0.5 x 10e9/L

    Time frame: 24 weeks

07

Study locations

2 of 2 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Oct 2022 (actual). Primary completion is estimated for Oct 2024, 24 months after the start.

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

Registered
Dec 27, 2023
First posted
Jul 25, 2024
StartActual
Oct 5, 2022
Primary completionEst.
Oct 2024
CompletionEst.
Mar 2025
Last update
Jul 25, 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 Jul 25, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06519786
Responsible party
Sponsor
First posted
Jul 25, 2024
Start date
Oct 5, 2022
Primary completion
Oct 2024 (estimated)
Completion
Mar 2025 (estimated)
Last update
Jul 25, 2024

Study contacts

Sara M Makkeyah, MD
Contact
smakkeyah@med.asu.edu.eg
+201140105222

Oversight

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

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