CD62L-depleted versus CD45RA-depleted donor lymphocyte infusions after haploidentical HSCT in children
Official title: Randomised Controlled Trial Comparing CD62L and CD45RA Depleted Donor Lymphocyte Infusion With T-cell Depleted Haploidentical Hematopoietic Stem Cell Transplantation
Run by Hong Kong Children's Hospital · NCT07867769 · Data updated 2026-11-12
This trial tests whether using CD62L-depleted donor lymphocytes after a haploidentical HSCT works better or worse than CD45RA-depleted lymphocytes in children.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | Any age to 18 Years |
| Sex | All |
| Enrollment | 46 (estimated) |
| Sponsor | Hong Kong Children's Hospital Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Hong Kong) |
| Status | Recruiting |
| Started | October 2, 2026 |
| Main results expected | October 1, 2029 |
| Study ends | October 1, 2029 |
| Registry record updated | October 9, 2026 |
| Trial ID | NCT07867769 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Children aged 0-18 requiring allogeneic HSCT with no HLA-matched donor but an HLA-haploidentical donor, adequate organ function, and performance status 50 or higher.
✕Probably not a fit
Patients with contraindications to haploidentical HSCT, significant comorbidities, or those unlikely to benefit from this transplant setting may not receive benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized Phase 2 trial compares two donor lymphocyte infusion strategies given after T-cell depleted haploidentical hematopoietic stem cell transplantation in pediatric patients. The study looks at safety and efficacy, including infection rates, graft-versus-host disease, relapse, and survival within the first year after transplant. All participants receive the same HSCT approach with either CD62L-depleted DLI or CD45RA-depleted DLI, allowing direct comparison of outcomes. The trial is conducted at Hong Kong Children's Hospital and targets children aged 0-18 who lack an HLA-matched donor but have a haploidentical family donor. Primary endpoints include viral infections within 100 days post-transplant and rates of acute and chronic GVHD, with secondary endpoints covering disease-free survival, overall survival, relapse, and graft rejection.
Why it matters
Potential benefit: If successful, this approach could reduce infections and GVHD while preserving anti-tumor effects, improving outcomes after haploidentical HSCT in children.
How similar studies have gone: Previous approaches using CD45RA-depleted DLI have shown reduced GVHD with retained immune memory; the CD62L depletion strategy is newer and its efficacy remains to be established in this setting.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Aged 0-18 years who requires allogeneic hematopoietic stem cell transplant, has no HLA-matched sibling donor but has an HLA-haploidentical donor. * Adequate organ function to tolerate the conditioning chemotherapy and radiotherapy. * Karnofsky or Lansky performance status score ≥50 Exclusion Criteria: * Pregnant or lactating woman * HIV infection * Patients for whom alternative treatment is deemed more appropriate * Patients who are unlikely to benefit from haploidentical HSCT, e.g., terminal malignancy with multiorgan failure
Where it's running
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Hong Kong Children's Hospital
Hong Kong, Hong Kong Recruiting
Study contacts
- Principal investigator: Daniel KL Cheuk, MBBS — Hong Kong Children's Hospital
- Study coordinator: Daniel KL Cheuk, MBBS
- Email: cheukkld@hku.hk
- Phone: 852-35136049
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.