Recruiting
Early Phase 1

Hyperbaric Oxygen Therapy & PBSC Transplant

Sponsor:

Omar Aljitawi

Code:

NCT03964506

Conditions

Acute Myeloid Leukemia

Myelodysplastic Syndromes

Chronic Myelomonocytic Leukemia

Atypical Chronic Myeloid Leukemia

Chronic Monocytic Leukemia

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Interventions

Hyperbaric oxygen

Study Details

Brief summary:

The purpose of this study is to determine if hyperbaric oxygen therapy is safe in the setting of stem cell transplantation. This study will also determine if hyperbaric oxygen therapy improves engraftment, graft versus host disease, neutrophil count, and incidence and severity of mucositis (inflammation of the mouth or gut) and infection. This study has two cohorts. The first cohort is subjects with acute myeloid leukemia (AML) or Myelodysplastic Syndrome (MDS). The second cohort is subjects with chronic myelomonocytic leukemia (CMML), atypical chronic myeloid leukemia (aCML), chronic monocytic leukemia, chronic neutrophilic leukemia (CNL), myelofibrosis, and myelodysplastic/myeloproliferative (MDS/MPN) overlap syndrome. The first cohort has completed the recruitment so only the second cohort will be recruited.

Conditions

Acute Myeloid Leukemia

Myelodysplastic Syndromes

Chronic Myelomonocytic Leukemia

Atypical Chronic Myeloid Leukemia

Chronic Monocytic Leukemia

Study ID

NCT03964506

Start date

Jul 1, 2020

Status verified date

Jun, 2026

Completion date

Mar 1, 2028

Anticipated

Primary completion date

Mar 1, 2027

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Voluntary written informed consent
  • Men or women, age ≥ 18 years of age, with upper limit of 75 years old.
  • Subjects with acute myeloid leukemia (AML) or Myelodysplastic Syndrome (MDS) for cohort 1.
  • Subjects with chronic myelomonocytic leukemia (CMML), atypical chronic myeloid leukemia (aCML), CML, chronic neutrophilic leukemia (CNL), myelofibrosis, and myelodysplastic/myeloproliferative (MDS/MPN) overlap syndrome for cohort 2.
  • Karnofsky performance status (KPS) of ≥ 70%
  • Patients should have New York Heart Association (NYHA) Functional Classification, Class I (ordinary physical activity does not cause undue fatigue, palpitation, dyspnea, or anginal pain) or Class II (ordinary physical activity results in fatigue, palpitation, dyspnea, or anginal pain).
  • Adequate hepatic, renal, cardiac and pulmonary function to be eligible for transplant. Minimum criteria include: Hepatic: ALT, AST < 4x IULN and serum total bilirubin ≤ 2.0 mg/dL; Renal: serum creatinine: ≤ 2.0 mg/dL; Left ventricular ejection fraction ≥ 45% measured by 2D-ECHO or MUGA scan; EKG with no clinically significant arrhythmia; FEV1, FVC and DLCO ≥ 50% of predicted value (corrected to serum hemoglobin)
  • Women of child-bearing potential and men with partners of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 30 days following completion of therapy. Should a woman or partner become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician and the investigator immediately.
  • A woman of child-bearing potential is any female (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria: Has not undergone a hysterectomy or bilateral oophorectomy; or Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months)
  • Women of child-bearing potential should have a negative urine or serum pregnancy test within 4 weeks of starting preparative regimen

Exclusion Criteria:

  • Pregnant or breastfeeding
  • Severe chronic obstructive pulmonary disease requiring oxygen supplementation
  • History of spontaneous pneumothorax, prior chest surgery requiring thoracotomy or direct chest irradiation to the lungs
  • Evidence of pneumothorax or significant pulmonary fibrosis on chest imaging within 60 days of transplant.
  • Active malignancy excluding AML, MDS, CMML, aCML CML, CNL, MF and MDS/MPN overlap syndrome.
  • Active ear/sinus infection. Patients with chronic sinusitis or sinus headaches are excluded unless cleared by ear, nose, and throat specialist.
  • Recent sinus surgery (within the last 5 years).
  • Ear surgery excluding myringotomy or ear tubes
  • Subjects must agree to refrain from active tobacco or e-cigarette use 72 hours prior to transplant until complete transplant recovery. Nicotine replacement therapy is allowed.
  • Claustrophobia
  • History of recurrent seizures within 5 years of study enrollment.
  • Uncontrolled asthma
  • Uncontrolled viral or bacterial infection at the time of study enrollment
  • Active or recent (prior 6 months) invasive fungal infection without interdisciplinary (ID) consult and approval
  • Patients who had intrathecal chemotherapy within 2 weeks of starting preparative regimen or cranial irradiation within 4 weeks of starting preparative regimen

Study Design

Enrollment

24 participants

Anticipated

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Cohort 1- AML or MDS

Patients with will receive HBO therapy one time on day 0 of the transplant. The treatment consists of exposure to hyperbaric oxygen at 2.5 atmospheric absolutes (ATA) for a total of 90 minutes after compression to 2.5 atmosphere absolutes (ATA) in a monoplace hyperbaric chamber (Model 3200/3200R, Sechrist Industries, Inc., USA), breathing 100% oxygen. The subjects will be in the chamber for a total of 120 minutes as approximately 10-15 minutes were spent during the compression and decompression phases and subjects had 10 minute room air breaks every 30 minutes of hyperbaric oxygen treatment.

experimental: Cohort 2- CMML, aCML, CML, CNL, MDS/MPN

Patients with will receive HBO therapy one time on day 0 of the transplant. The treatment consists of exposure to hyperbaric oxygen at 2.5 atmospheric absolutes (ATA) for a total of 90 minutes after compression to 2.5 atmosphere absolutes (ATA) in a monoplace hyperbaric chamber (Model 3200/3200R, Sechrist Industries, Inc., USA), breathing 100% oxygen. The subjects will be in the chamber for a total of 120 minutes as approximately 10-15 minutes were spent during the compression and decompression phases and subjects had 10 minute room air breaks every 30 minutes of hyperbaric oxygen treatment.

Interventions

Hyperbaric oxygen

Reduced intensity conditioning Fludarabine and Melphalan with Hyperbaric Oxygen and Allogeneic Hematopoietic Stem Cell Transplant

Primary outcome measure

  • Immediate safety of hyperbaric oxygen therapy prior to allogeneic stem cell transplantation in Cohort 1 [ Time Frame: 24 hours ]
  • Immediate safety of hyperbaric oxygen therapy prior to allogeneic stem cell transplantation in cohort 2 [ Time Frame: 24 hours ]
  • Long term safety of hyperbaric oxygen therapy prior to allogeneic stem cell transplant in Cohort 1 [ Time Frame: 100 days ]
  • Long term safety of hyperbaric oxygen therapy prior to allogeneic stem cell transplant in Cohort 2 [ Time Frame: 100 days ]

Central Contacts and Locations

Central contacts

Regulatory Coordinator

(585) 276-7078Lisa_Metzger@URMC.Rochester.edu

Locations

Wilmot Cancer Institute, University of Rochester

Recruiting

Rochester, New York, United States, 14642

More Information

Sponsor

Omar Aljitawi

Last update posted

Jun 3, 2026

Last verified

Jun, 2026

Keywords

  • Allogeneic transplant
  • Hyperbaric Oxygen

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-25. This information was provided to ClinicalTrials.gov by Omar Aljitawi on 2026-06-03. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.