Using human lysozyme goat milk to prevent graft versus host disease in blood cancer patients receiving stem cell transplants

A Randomized Pilot Study of Human Lysozyme Goat Milk in Recipients of Standard Myeloablative Allogeneic Hematopoietic Stem Cell Transplantation

Phase 1 Interventional City of Hope Medical Center · NCT04177004

This study is testing if drinking human lysozyme goat milk can help prevent graft versus host disease in blood cancer patients who are getting stem cell transplants.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment36 (estimated)
Ages12 Years and up
SexAll
SponsorCity of Hope Medical Center Academic / other
Drugs / interventionsradiation, cyclophosphamide
Locations1 site (Duarte, California)
Trial IDNCT04177004 on ClinicalTrials.gov

What this trial studies

This phase I trial investigates the safety and feasibility of human lysozyme goat milk in preventing graft versus host disease (GVHD) in patients with blood cancer undergoing donor stem cell transplants. The study aims to evaluate the side effects of this treatment, including its impact on gut microbiome diversity and the incidence of infections. Participants will consume 250 ml of the goat milk three times a day during the treatment period, and the trial will compare outcomes between those receiving the milk and those who do not. The research will also assess various biomarkers related to GVHD and gut health.

Who should consider this trial

Good fit: Ideal candidates are patients with hematologic malignancies undergoing allogeneic hematopoietic stem cell transplantation from matched donors.

Not a fit: Patients who are not undergoing stem cell transplantation or those with incompatible donor matches may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the incidence of graft versus host disease in patients undergoing stem cell transplants.

How similar studies have performed: While the use of human lysozyme in this context is novel, similar approaches targeting gut health in transplant patients have shown promise in other studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Documented informed consent of the participant and/or legally authorized representative
* Willingness to be followed for the planned duration of the trial (2 years)
* All subjects must have the ability to understand and the willingness to sign a written informed consent
* Karnofsky performance status \>= 60 per COH SOP
* Patients must be undergoing allogeneic hematopoietic stem cell transplantation (alloHCT) for hematologic malignancies from matched related or matched unrelated donors with 8/8 (A, B, C, DRB 1) high resolution human leukocyte antigen (HLA) donor allele matching
* Patients must be receiving a fractionated total body radiation (FTBI) based- myeloablative conditioning regimen; (acceptable conditioning regimens include total body irradiation \[TBI\] + cyclophosphamide or TBI + etoposide)
* Ejection fraction measured by echocardiogram or multi gated acquisition scan (MUGA) \> 50%
* Diffusing capacity for carbon monoxide (DLCO) adjusted for hemoglobin or forced vital capacity (FVC) \> 50% predicted
* Total serum bilirubin \< 2 times upper limit of normal
* Alanine aminotransferase (ALT)/aspartate aminotransferase (AST) =\< 2.5 x the upper normal limit
* Alkaline phosphatase =\< 2.5 x the upper normal limit
* Measured creatinine clearance more than 60 mL/min
* Agreement by females and males of childbearing potential to use an effective method of birth control or abstain from heterosexual activity for the course of the study through 90 days after the last dose of protocol therapy

  * Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for \> 1 year (women only)

Exclusion Criteria:

* Failure of research participant to understand the basic elements of the protocol and/or the risks/benefits of participating in this pilot study. A legal guardian may substitute for the research participant
* Research participants receiving any other investigational agents
* Research participants with presence of other active malignancy within 2 years of study entry. Participants with history of prior malignancy treated with curative intent who achieved complete remission (CR) more than 2 years before study entry are eligible. This exclusion rule does not apply to non-melanoma skin tumors and in-situ cervical cancer
* Research participants having any uncontrolled illness including ongoing or active infection. Research participants with known active hepatitis B or C infection; research participants who are human immunodeficiency virus (HIV) seropositive based on testing performed within 4 weeks of enrollment; research participants with any signs or symptoms of active infection, positive blood cultures, or radiological evidence of infections
* Refusing to use contraception up to 90 days post-HCT
* Pregnant and/or breast feeding if a female recipient
* Lactose intolerance or intolerance to milk products
* In the opinion of the principal investigator (PI), the participant has a condition that will preclude them from complying with study treatment

Where this trial is running

Duarte, California

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Allogeneic Hematopoietic Stem Cell Transplant RecipientHematopoietic and Lymphoid Cell Neoplasm
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.