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Phase II Study of Resistant Potato Starch Plus Deferasirox to Improve Outcomes in Patients Undergoing Allogeneic Stem Cell Transplantation

Phase II Multi-center Study of Resistant Potato Starch Plus Deferasirox to Improve Outcomes in Patients Undergoing Allogeneic Stem Cell Transplantation

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06784336
Enrollment
50
Registered
2025-01-20
Start date
2025-10-15
Completion date
2029-10-01
Last updated
2026-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Allogeneic Stem Cell Transplant

Brief summary

The study will evaluate the safety and early efficacy of administering the combination of a commercially available potato-based resistant starch along with iron chelation therapy to subjects undergoing alloHCT.

Detailed description

The deferasirox intervention will begin one week prior to the RPS (Resistant Potato Starch) conditioning phase and both will continue through day +100. The study hypothesis is that a short-term administration of a resistant starch and iron chelation therapy will be capable of both increasing levels of butyrate within the intestine and restoring physiological hypoxia in the intestines, which together will reduce rates of acute GVHD (Graft versus Host Disease) and improve the clinically meaningful outcome of GRFS (Graft versus Host Disease / Relapse-Free Survival) at 12 months post-transplant. 21NOV2025- The grant previously listed on this trial is associated with the conduct of a preliminary study NCT02763033. Therefore, it was removed from this clinical trial as it is not being used for the conduct of this study.

Interventions

Patients will receive Iron chelation with deferasirox (Jadenu 7 mg/kg/day preferred versus Exjade 10 mg/kg/day) beginning on day -14 and continuing through day +100

DRUGPotato Resistant Starch

Patients will receive PRS beginning on day -6 and continuing through day +100. Patients will take 20g packet twice daily

Sponsors

University of Michigan Rogel Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with hematologic disorders undergoing allo-HCT from fully HLA-matched unrelated or related donors after full-intensity conditioning regimen * Age ≥18 years * Karnofsky performance status \>70%, see Appendix A * Patients must be able to swallow capsules/tablets * Ability to understand and the willingness to sign a written informed consent * Availability of a full-HLA matched related or unrelated donor who is medically eligible to donate cells according to the National Marrow Donor Program criteria

Exclusion criteria

* Patients with active inflammatory bowel disease requiring treatment per treating investigator * Patients with a history of gastric bypass surgery * Patients with active Clostridium difficile infection at the time of study enrollment. Active infection is defined as a stool sample positive for Clostridium difficile toxin via enzyme immunoassay (EIA) and either symptoms (frequent loose stools) OR imaging findings consistent with toxic megacolon * Patients with active iron deficiency anemia requiring treatment * Patients with iron overload receiving active treatment with deferasirox * Known hypersensitivity to deferasirox or any component of Jadenu or Exjade * Patients actively enrolled on treatment or in follow up phase on any other GVHD prevention trial * Any physical or psychological condition that, in the opinion of the investigator, would pose an unacceptable risk to the patient or raise concern that the patient would not comply with protocol procedures

Design outcomes

Primary

MeasureTime frameDescription
GVHD-free and relapse-free survivalup to 1 year post- transplantationAssessed in a time-to-event analysis, with GRFS defined as the first occurrence of grade III or IV acute GVHD, chronic GVHD warranting systemic immunosuppression, disease relapse or progression, or death from any cause.

Secondary

MeasureTime frameDescription
Rates of grade II, III and IV acute GVHDup to 1 year post- transplantationCumulative incidence of grades II to IV GVHD and of grades III to IV acute GVHD
Rates of chronic GVHD requiring systemic immunosuppressionup to 1 year post- transplantationCumulative incidence of chronic GVHD warranting systemic immunosuppression
Length of event-free survivalup to 1 year post- transplantationtime to relapse/progression or death as first event

Countries

United States

Contacts

CONTACTMary Riwes
mmriwes@umich.edu734-936-8785
PRINCIPAL_INVESTIGATORMary Riwes

University of Michigan Rogel Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 22, 2026