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Sargramostim for Down Syndrome

NR
Overseen ByNeurology Research Partners, CU Department of Neurology
Age: 18 - 65
Sex: Any
Trial Phase: Phase 2
Sponsor: University of Colorado, Denver
Must be taking: Hypothyroidism treatments
Prior Safety DataThis treatment has passed at least one previous human trial
Approved in 2 JurisdictionsThis treatment is already approved in other countries

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial protocol is designed to evaluate primarily whether the use of sargramostim (recombinant human GM-CSF), administered five days per week for four consecutive weeks (20 treatment days), will be well tolerated by and safe for use in young adult participants with Down syndrome.

Do I need to stop taking my current medications for the trial?

You need to be stable on all your current medications for at least 30 days before the trial starts, and you must continue your hypothyroidism treatment if applicable. Chronic use of certain medications like NSAIDs and anti-cholinergic drugs is not allowed.

Is sargramostim generally safe for humans?

Sargramostim, also known as rhu GM-CSF, has been used to help recover bone marrow after chemotherapy and has been studied for other uses. Some people have had allergic reactions to it, but these are not well understood. Overall, it has been used in various medical settings, suggesting it is generally considered safe, though specific reactions can occur.12345

How is the drug sargramostim unique for treating Down Syndrome?

Sargramostim is unique because it activates a broader range of immune cells compared to other similar drugs, potentially offering a more comprehensive immune response. This broader activation could be beneficial in conditions like Down Syndrome, where immune system support might be needed.12356

What data supports the effectiveness of the drug Sargramostim for Down Syndrome?

Sargramostim, also known as GM-CSF, is known to boost the immune system and help recover blood cells after chemotherapy, which suggests it might help improve immune function in other conditions as well.13467

Who Is on the Research Team?

PP

Peter Pressman, MD

Principal Investigator

CU Alzheimer's and Cognition Center

Are You a Good Fit for This Trial?

Adults with Down syndrome aged 18-35, who have a caregiver available for support, can participate in this trial. They must be healthy enough to join, not pregnant or planning pregnancy, and live close to the study site. Participants need recent thyroid checks and stable medication use.

Inclusion Criteria

My medications have been the same for the last 30 days.
I have been diagnosed with Down syndrome.
I can give my consent or have someone legally authorized to do so on my behalf.
See 5 more

Exclusion Criteria

I have had seizures, not including fever-related ones as a baby.
My liver isn't working well, or my ALT levels are three times higher than normal.
Your blood pressure is higher than 160 over 95 when checked before the study.
See 21 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive sargramostim or placebo subcutaneously 5 days per week for 4 consecutive weeks

4 weeks
20 visits (in-person)

Follow-up

Participants are monitored for safety and effectiveness after treatment

16 weeks
Regular follow-up visits

What Are the Treatments Tested in This Trial?

Interventions

  • Saline Placebo
  • Sargramostim
Trial Overview The trial is testing Sargramostim (GM-CSF), given five days a week for four weeks, against a saline placebo to see if it's safe and tolerable for young adults with Down syndrome.
How Is the Trial Designed?
2Treatment groups
Experimental Treatment
Placebo Group
Group I: SargramostimExperimental Treatment1 Intervention
Sargramostim 250 μg/m2/day subcutaneously (5 days per week)
Group II: Placebo Control - SalinePlacebo Group1 Intervention
Placebo equivalent volume subcutaneously (5 days per week)

Sargramostim is already approved in United States, European Union for the following indications:

🇺🇸
Approved in United States as Leukine for:
  • Bone Marrow Stimulation
  • Neutropenia
  • Acute Myeloid Leukemia
  • Fungal Infections
  • Radiation Exposure
🇪🇺
Approved in European Union as Leukine for:
  • Bone Marrow Stimulation
  • Neutropenia
  • Acute Myeloid Leukemia

Find a Clinic Near You

Who Is Running the Clinical Trial?

University of Colorado, Denver

Lead Sponsor

Trials
1,842
Recruited
3,028,000+

National Institute on Aging (NIA)

Collaborator

Trials
1,841
Recruited
28,150,000+

Published Research Related to This Trial

Filgrastim and sargramostim are effective treatments for neutropenia, but their comparative efficacy and safety require further investigation due to insufficient data from randomized trials.
Tolerability of GM-CSF, like sargramostim, may vary based on protein glycosylation, with evidence suggesting that a nonglycosylated version, molgramostim, could have higher toxicity, highlighting the need for more comprehensive studies.
Clinical applications of colony-stimulating factors: a historical perspective.Sylvester, RK.[2019]
In a study involving 137 cancer patients undergoing chemotherapy, both sargramostim and filgrastim were found to be well tolerated for preventing chemotherapy-induced neutropenia, with only a slightly higher incidence of mild fever associated with sargramostim.
There were no significant differences in adverse events, hospitalization days, or the need for intravenous antibiotics between the two treatments, indicating that both growth factors are comparably effective in this context.
Randomized trial comparing the tolerability of sargramostim (yeast-derived RhuGM-CSF) and filgrastim (bacteria-derived RhuG-CSF) in cancer patients receiving myelosuppressive chemotherapy.Beveridge, RA., Miller, JA., Kales, AN., et al.[2019]
In a study involving 35 patients (18 receiving GM-CSF and 17 controls), GM-CSF did not enhance T cell or natural killer cell recovery after allogeneic stem cell transplantation, contrary to expectations.
However, GM-CSF administration improved dendritic cell reconstitution in patients undergoing autologous stem cell transplantation, suggesting its benefits may vary based on the type of transplant.
Granulocyte-macrophage colony-stimulating factor increases the proportion of circulating dendritic cells after autologous but not after allogeneic hematopoietic stem cell transplantation.Eksioglu, EA., Kielbasa, J., Eisen, S., et al.[2018]

Citations

Clinical applications of colony-stimulating factors: a historical perspective. [2019]
Randomized trial comparing the tolerability of sargramostim (yeast-derived RhuGM-CSF) and filgrastim (bacteria-derived RhuG-CSF) in cancer patients receiving myelosuppressive chemotherapy. [2019]
Granulocyte-macrophage colony-stimulating factor increases the proportion of circulating dendritic cells after autologous but not after allogeneic hematopoietic stem cell transplantation. [2018]
Recombinant Human Granulocyte-Macrophage Colony-Stimulating Factor (rhu GM-CSF) as Adjuvant Therapy for Invasive Fungal Diseases. [2022]
Immediate hypersensitivity to human recombinant granulocyte-macrophage colony-stimulating factor associated with a positive prick skin test reaction. [2017]
Sargramostim (rhu GM-CSF) as Cancer Therapy (Systematic Review) and An Immunomodulator. A Drug Before Its Time? [2022]
Comparison of hospitalization risk and associated costs among patients receiving sargramostim, filgrastim, and pegfilgrastim for chemotherapy-induced neutropenia. [2022]
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