AzTrials
AzTrials

Hematologic NeoplasmsNCT07845669

Effects of Synbiotic Supplementation on Gastrointestinal Symptoms, Appetite, and Nutritional Recovery in Patients After Autologous Bone Marrow Transplant

A study testing Tri-component Synbiotic Supplement in people with Hematologic Neoplasms and Gastrointestinal Symptoms, run by Alexandria University at 1 site in Egypt.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
Search all trials

Trial summary

Patients undergoing autologous bone marrow transplantation (ABMT) receive high-dose chemotherapy and routine prophylactic antibiotics, which often disrupt the gut microbiome (dysbiosis). Read more about this study

Who is it for?
Ages 20 to 65 years
What is being tested?
Tri-component Synbiotic Supplement
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteEgypt
Study dates
1 Oct 2026to 1 Mar 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult patients aged 20 to 65 years with hematological malignancies.
  • Having undergone successful autologous bone marrow transplantation with confirmed neutrophil and platelet engraftment on day 30 post-transplant.
  • Hematologically stable, clinically defined and laboratory-confirmed on day 30 post-transplant by:
  • Neutrophil engraftment: Absolute Neutrophil Count (ANC) >= 1,500/mcL (or >= 1.5 x 10^9/L) maintained for at least 3 consecutive days without hematopoietic growth factor support.
  • Platelet engraftment: Platelet count >= 20,000/mcL (or >= 50,000/mcL according to institutional safety protocols) sustained without platelet transfusion for at least 7 consecutive days.
  • Hemoglobin stability: Hemoglobin level >= 8.0 g/dL without active bleeding or acute transfusion requirement.
  • Discharged from the hospital and capable of oral intake and adherence to the daily supplement regimen.
  • Capable of providing written informed consent.

Who cannot join

  • Pre-existing severe gastrointestinal disorders (e.g., inflammatory bowel disease, active enteritis, or history of colorectal surgery/resection).
  • Severe renal or hepatic impairment (e.g., pre-existing documented history or established clinical diagnosis of advanced renal failure, active requirement for renal replacement therapy, or decompensated liver disease, verified directly from institutional medical records).
  • Active, prolonged high-dose systemic corticosteroid therapy or uncontrolled diabetes mellitus that may independently alter gastrointestinal motility, mucosal integrity, or appetite regulation.
  • Known allergies or hypersensitivity to any component of the synbiotic formulation.
  • Current or regular use of other commercial probiotic, prebiotic, or synbiotic supplements within 30 days prior to enrollment.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Mohamed Khalil Sharaf, Candidate for Master's Degree contact

+20 15 5715 1211

mohamedsharaf860@gmail.com

Egypt1 site
  • Armed Forces Medical Complex in Alexandria

    Alexandria, Alexandria Governorate, 21500

Other trials in Egypt

About this study

Official title: Efficacy of Synbiotic Supplementation on Gastrointestinal Symptoms, Appetite, and Nutritional Status Following Autologous Bone Marrow Transplantation: A Randomized Controlled Trial

Patients undergoing autologous bone marrow transplantation (ABMT) receive high-dose chemotherapy and routine prophylactic antibiotics, which often disrupt the gut microbiome (dysbiosis). This imbalance can lead to debilitating gastrointestinal complications, loss of appetite, decreased dietary intake, and malnutrition, impairing recovery.

The purpose of this randomized controlled trial is to evaluate whether daily supplementation with a tri-component synbiotic (combining multispecies probiotics, xylo-oligosaccharide prebiotics, and a tributyrin postbiotic) can improve gastrointestinal symptoms, appetite, and nutritional status in adult hematological cancer patients following autologous bone marrow transplantation.

Read more

Participants will be randomly assigned (1:1 ratio) to either:

  1. Control Group: Receiving standard post-transplant nutritional care based on clinical guidelines.
  2. Intervention Group: Receiving the same standard nutritional care plus a daily oral synbiotic capsule for 3 months.

Participants will be followed during the 3-month intervention period and for an additional 1-month post-intervention follow-up phase to assess the sustainability of benefits. The study will evaluate digestive symptoms, self-reported appetite, dietary intake, body weight, inflammatory markers (fecal calprotectin), and protein status (serum albumin), while closely monitoring participant safety.

Read the detailed description

High-dose conditioning chemotherapy and routine prophylactic antibiotic administration in patients undergoing autologous bone marrow transplantation (ABMT) severely compromise the gastrointestinal microenvironment, resulting in acute dysbiosis, gut mucosal disruption, decreased appetite, and acute weight loss. This single-center, open-label, randomized, parallel-group trial evaluates the clinical efficacy and mechanistic impact of a tri-component synbiotic formulation designed to counteract post-transplant dysbiosis.

The active supplement combines three synergistic elements:

  1. Multispecies Probiotics (10 billion CFU per daily capsule): Lactobacillus acidophilus, Lactobacillus rhamnosus, Bacillus subtilis, Bifidobacterium animalis subsp. lactis, Bifidobacterium bifidum, Bifidobacterium longum, and Saccharomyces boulardii.
  2. Prebiotic: Xylo-oligosaccharides (XOS, 100 mg) to selectively nourish Bifidobacterium and Lactobacillus genera.
  3. Postbiotic: Tributyrin (210 mg), a stable butyrate precursor supporting intestinal mucosal epithelial barrier integrity and reducing inflammatory signaling.

All supplement units are sourced from a single uniform manufacturing batch produced under Good Manufacturing Practice (GMP) standards, with microbiological purity and strain viability validated through independent accredited laboratory testing prior to administration. Participants are instructed to ingest the capsule daily, maintaining an interval of at least 2 to 3 hours apart from broad-spectrum antibiotics to preserve live strain viability.

Study Timeline and Procedures:

  1. Baseline (Day 30 post-ABMT): Following confirmation of successful engraftment (Absolute Neutrophil Count >= 1,500/uL, sustained platelet count >= 20,000/uL, and hemoglobin >= 8.0 g/dL), patients complete baseline assessments and provide fasting blood and stool specimens.
  2. Intervention Phase (Day 30 to Day 120 post-transplant): Participants undergo weekly clinical and safety follow-up evaluations. Questionnaires, 24-hour dietary recalls (3 non-consecutive days), and anthropometric measurements are repeated at Month 1 (Day 60), Month 2 (Day 90), and Month 3 (Day 120 / End of Intervention). Fasting blood (serum albumin) and stool samples (routine examination and fecal calprotectin) are recollected at Day 120.
  3. Follow-up Phase (Day 120 to Day 150 post-transplant): A 30-day post-supplementation observational window to assess sustained clinical effects without supplement administration, concluding with a comprehensive evaluation at Day 150.

Safety Oversight:

Weekly monitoring tracks adverse events, febrile episodes (>= 38.0°C), gastrointestinal tolerance, and late-onset cytopenias. Any suspected microbial translocation or serious adverse event mandates immediate supplement cessation and clinical investigation.

Being tested
Tri-component Synbiotic Supplement
Keywords
Synbiotics, Autologous Bone Marrow Transplantation, Autologous Stem Cell Transplantation, Gut Microbiome, Probiotics, Prebiotics, Postbiotics, Tributyrin, Gastrointestinal Symptoms, Nutritional Recovery, Appetite, Fecal Calprotectin
Medical subject headings
Hematologic Neoplasms, Malnutrition, Anorexia, Dysbiosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tri-component Synbiotic SupplementDietary supplement

    Also called Synbiotic (Probiotic + Prebiotic + Postbiotic)

    Daily oral capsule containing: 1) Multispecies Probiotics (10 billion CFU: Lactobacillus acidophilus, Lactobacillus rhamnosus, Bacillus subtilis, Bifidobacterium animalis subsp. lactis, Bifidobacterium bifidum, Bifidobacterium longum, Saccharomyces boulardii); 2) Prebiotic: Xylo-oligosaccharides (XOS, 100 mg); 3) Postbiotic: Tributyrin (210 mg). Administered once daily for 3 months (from Day 30 to Day 120 post-transplant), timed at least 2 to 3 hours apart from routine prophylactic antibiotics.

Study groups in NCT07845669
Study groupRoleWhat they receive
Intervention Group (Synbiotic)ExperimentalParticipants receive standard post-transplant nutritional care plus daily oral supplementation with a tri-component synbiotic capsule (containing 10 billion CFU multispecies probiotics, 100 mg xylo-oligosaccharides prebiotic, and 210 mg tributyrin postbiotic) for 3 months (from Day 30 to Day 120 post-ABMT), followed by a 1-month observational follow-up period.
Receives: Dietary Supplement: Tri-component Synbiotic Supplement
Control Group (Standard Care)No interventionParticipants receive standard post-transplant nutritional care alone based on clinical practice guidelines without any synbiotic or placebo supplementation for 3 months (from Day 30 to Day 120 post-ABMT), followed by a 1-month observational follow-up period.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Gastrointestinal Symptoms Score using Gastrointestinal Symptom Rating Scale (GSRS)

    Evaluated using the validated Arabic version of the Gastrointestinal Symptom Rating Scale (GSRS). The instrument comprises 15 items categorized into five symptom clusters: reflux, abdominal pain, indigestion, diarrhea, and constipation. Each item is rated on a 7-point Likert scale ranging from 1 (no discomfort) to 7 (very severe discomfort). Total scores range from 15 to 105, where lower scores represent fewer symptoms and better gastrointestinal tolerance.

    Measured: Assessed at Baseline (Day 30 post-transplant), Month 1 (Day 60), Month 2 (Day 90), Month 3 (Day 120 / end of intervention), and Month 4 (Day 150 / post-intervention follow-up).

  2. Change in Patient-Reported Appetite Score using the Council on Nutrition Appetite Questionnaire (CNAQ)

    Evaluated using the validated Arabic version of the Council on Nutrition Appetite Questionnaire (CNAQ). The questionnaire consists of 8 items assessing appetite perception, taste of food, meal frequency, mood, and satiety. Each item is rated on a 5-point scale, generating a total score ranging from 8 to 40. Higher scores indicate improved appetite, while a score of 28 or lower indicates poor appetite and significant risk of weight loss.

    Measured: Assessed at Baseline (Day 30 post-transplant), Month 1 (Day 60), Month 2 (Day 90), Month 3 (Day 120 / end of intervention), and Month 4 (Day 150 / post-intervention follow-up).

Secondary outcomes (5)
  1. Change in Daily Dietary Energy and Protein Intake

    Assessed quantitatively using 3-day 24-hour dietary recalls (conducted on three non-consecutive days) and analyzed using the Egyptian Food Composition Tables to determine actual daily caloric intake (kcal/day) and protein intake (grams/day and g/kg/day).

    Measured: Assessed at Baseline (Day 30 post-transplant), Month 1 (Day 60), Month 2 (Day 90), Month 3 (Day 120 / end of intervention), and Month 4 (Day 150 / post-intervention follow-up).

  2. Change in Body Weight and Body Mass Index (BMI)

    Body weight (kg) is measured using a calibrated digital scale according to standardized anthropometric procedures. Body Mass Index (BMI) is calculated as weight in kilograms divided by height in meters squared (kg/m²).

    Measured: Assessed at Baseline (Day 30 post-transplant), Month 1 (Day 60), Month 2 (Day 90), Month 3 (Day 120 / end of intervention), and Month 4 (Day 150 / post-intervention follow-up).

  3. Change in Fecal Calprotectin Concentration

    Stool samples are quantitatively analyzed for fecal calprotectin concentration (expressed in mcg/g) using enzyme-linked immunosorbent assay (ELISA) as an objective laboratory biomarker to assess intestinal mucosal inflammation and gut barrier integrity.

    Measured: Assessed at Baseline (Day 30 post-transplant) and Month 3 (Day 120 / end of intervention).

  4. Change in Serum Albumin Level

    Venous blood samples are quantitatively analyzed for serum albumin concentration (expressed in g/dL) using standardized automated laboratory colorimetric assays as an objective biochemical marker reflecting nutritional and inflammatory status.

    Measured: Assessed at Baseline (Day 30 post-transplant) and Month 3 (Day 120 / end of intervention).

  5. Incidence of Treatment-Emergent Adverse Events and Supplement Tolerability

    Continuous monitoring, recording, and assessment of all reported adverse events, gastrointestinal intolerances, infectious complications, and safety issues potentially related to synbiotic supplementation throughout the study duration.

    Measured: From Baseline (Day 30 post-transplant) through post-intervention follow-up at Month 4 (Day 150).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Sep 2026
  2. Study start1 Oct 2026 (estimated)
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion1 Mar 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Model description
A single-center, open-label, randomized, parallel-group controlled trial with a 1:1 allocation ratio. Eligible patients following autologous bone marrow transplantation will be randomly allocated to either the intervention group (tri-component synbiotic plus standard nutritional care) or the control group (standard nutritional care alone) for a 3-month intervention period, followed by a 1-month post-intervention observational follow-up period.
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07845669
Sponsor's protocol ID
AU09264281250
Status last verified
Sep 2026
First submitted
23 Sep 2026
Last updated
1 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: De-identified individual participant data underlying the results reported in published articles will be shared with qualified academic researchers upon reasonable request, after publication of the primary trial results, subject to institutional ethical review and a data access agreement.

Questions about this trial

What is this clinical trial studying?

A study testing Tri-component Synbiotic Supplement in people with Hematologic Neoplasms and Gastrointestinal Symptoms, run by Alexandria University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 1 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Mohamed Khalil Sharaf, Candidate for Master's Degree (+20 15 5715 1211, mohamedsharaf860@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Gastrointestinal Symptoms Score using Gastrointestinal Symptom Rating Scale (GSRS) (time frame: Assessed at Baseline (Day 30 post-transplant), Month 1 (Day 60), Month 2 (Day 90), Month 3 (Day 120 / end of intervention), and Month 4 (Day 150 / post-intervention follow-up).). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Oct 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in