Application area · Clostridioides difficile

Recurrent C. difficile infection? There is a modern solution.

Microbiota transfer therapy (MTT) – the procedure commonly known as faecal transplantation – is one of the most effective, non-invasive ways of treating recurrent Clostridioides difficile infection. The European and American professional guidelines both recommend it when the disease recurs. You do not have to face it alone — we accompany you from the first question to recovery.

Short answer. Microbiota transfer – commonly known as faecal transplantation – is primarily considered in recurrent C. difficile (Clostridioides difficile) infection, after a second or further recurrence, on the basis of the earlier antibiotic treatments and the patient's condition, in consultation with the treating physician. The first step is the free pre-screening and a review of the earlier findings.

Before we begin

What is happening in your body?

If it has already recurred several times, you know how exhausting it can be.

The Clostridioides (Clostridium) difficile is a toxin-producing bacterium. When the balance of the gut flora is disrupted — typically after a course of antibiotics — it can multiply and cause a stubborn, often recurrent diarrhoeal infection (CDI).

The infection typically runs like this: during the antibiotic course the symptoms disappear, then return one or two weeks after the treatment has ended. This may be followed by another course and another relapse. Every cycle reduces the diversity of the gut flora, and after each recurrence the chance of the next one is greater.

MTT tries to break this cycle: it does not kill the bacterium, but restores the microbial community that keeps the pathogen from multiplying. On this page we set out who the procedure helps, what happens when, what it costs, and where its limits lie.

Six questions

Is this for my case?

This is not a diagnosis and does not replace a medical examination — but in one minute it shows whether it is worth getting in touch with us.

When home treatment is not the next step

A fulminant, life-threatening course — high fever, marked abdominal pain, circulatory instability, suspected toxic megacolon or bowel perforation — requires immediate hospital care. With severe immunosuppression, active oncological treatment or inflammatory bowel disease we assess the treatment individually, together with the treating physician. If you are uncertain, ask for a telephone consultation and in 15 minutes we will inform you about the options. If we see that we cannot help, we will say so honestly.

Realistic expectations on timing

When to expect what

So that you know when things happen and where the decision points are.

Day 0

Assessment and protocol

Getting in touch, registration. From the symptoms, the test results and the previous treatments we calculate your SIS score. This decides the starting dose with which the treatment begins. We assemble the capsules ordered within 72 hours and hand them over to the courier service ready for shipping.

Day 3

The therapy begins

The starting dose is derived from the SIS score, and we keep it unchanged during the initial phase. The exact length and the pace at which the dose is adjusted are set by a predefined protocol, but may vary according to the individual condition and consultation with the treating physician. The detailed protocol is set out in the downloadable professional document. You need to record your symptoms daily using an online questionnaire, which takes 7–8 minutes.

Day 10

First evaluation

If the symptoms have settled durably, the gradual tapering begins: the dose is reduced in steps, according to a predefined protocol. Decision mechanism: we reduce, we hold the dose, or — if there is no response beyond 48 hours — we escalate to the band maximum.

Day 15

If the symptoms do not ease

We provide an online consultation with our exposome specialist and fine-tune the protocol in consultation with the treating physician. Decision: we maintain the treatment, we modify it, or we refer you back to your treating physician. We do not build in automatic repetition.

This is how the process works

Your path, step by step

The same sequence as on the timeline above. At every stage you will know what the next step is — getting from registration to a personalised protocol can take as little as 20 minutes in all.

Contact and pre-screening

Fill in the form or ask for a call back. In a free, 15-minute conversation we clarify whether it makes sense to start in your case. If we see that it does not, we will say so.

Registration

We will send you a link in an information e-mail with which you can register as a patient. At that point you will receive a unique identifier from us in P0000000 format, which we will always refer to during the further administration.

Goals and expectations

By filling in a short questionnaire you tell us about your symptoms, your previous treatments, the number of recurrences and your expectations of MTT.

Condition assessment (SIS)

The The Symptom Importance Scale helps us assess your current condition and propose a personalised protocol. Filling it in is extremely simple: all we need is your medical history and the laboratory results already available.

Assembly and delivery

We assemble the capsules ordered within 72 hours and hand them over to the courier service ready for shipping.

Follow-up

During the therapy we track the symptoms with the online questionnaire. If they have not eased after 15 days, we provide an online consultation and fine-tune the protocol in consultation with the treating physician.

Transparent pricing

What the procedure costs, and when you have to decide

You do not have to decide about the whole process at once. After every step you have the opportunity to assess the results achieved.

StepWhat we providePriceMust you continue?
1. Call back and pre-screeningA 15-minute conversation, clarifying suitabilityfree of chargeno
2. Condition assessment (SIS)23 weighted variables, based on four validated medical models; a personalised protocol recommendationfree of chargeno
3. DiffBiome course
30 capsules, treatment at home
At the dose given by the SIS score, with gradual tapering and follow-up€1,140 / 30 capsules
+ shipping cost
4. HospBiome
5-capsule pack
For the treatment of patients cared for in hospital, by institutional order onlyby individual agreement

What the price includes, and what it does not

ItemIncluded?
Call back and pre-screening (15-minute conversation)yes — free of charge
Condition assessment (SIS score)yes — free of charge
Appearing in personis not necessary — the process is remote throughout
The capsules in the packaging unit orderedyes — at the price in the table above
Shipping costno — the delivery charge is separate
Follow-up during the courseyes
Joint closing assessment and tapering-off planyes
Examination by the treating physician, laboratory testsno — these take place at your own healthcare provider
The condition assessment is a meaningful step in itself. The SIS score shows which severity band your case falls into and whether home treatment or hospital care is the right direction. If the assessment shows that a capsule is not the next step, we will say so, and we will not recommend continuing.
The right treatment

Which capsule is for what?

The same high-quality donor microbiota, processed in a certified laboratory — in two formats, tailored to your situation.

Treatment at home

DiffBiome

30-capsule course
  • For the treatment at home of recurrent C. difficile infection that does not respond to antibiotics
  • For patients who no longer require hospital care but are still fighting the infection
  • €1,140 / 30 capsules — we assemble the capsules within 72 hours and they are ready for shipping
  • Minimum order: 1 box
DiffBiome details →
Treatment in hospital

HospBiome

5-capsule pack
  • Specifically for the C. difficile treatment of patients cared for in hospital
  • If antibiotic therapy has not produced results, or the infection has recurred several times
  • Can only be ordered by a healthcare institution — a hospital ward or clinic, under an institutional agreement (minimum order: 120 packaging units = 20 treatment units). As a patient you do not need to deal with this: if inpatient care is needed, we arrange it with the institution.
HospBiome details →
Evidence

What we know today — in brief

The C. difficile infection is the best-established indication for FMT. The first randomised trial, in 2013, was stopped earlier than planned, because the difference between the effect of donor stool and that of the antibiotic was so large in favour of FMT that further randomisation was judged unethical.29

The capsule form is equivalent to colonoscopy. In a randomised trial of 116 patients, 12 weeks after a single treatment 96.2% of patients had no recurrence of the infection — the same proportion as with the colonoscopic procedure.8 The figure refers to the method, not to a specific product.

The professional guidelines recommend it. Both the ESCMID 2021 guidance and the IDSA/SHEA 2021 update recommend FMT over standard antibiotic treatment for second and further recurrences.17, 28

The safety data are reassuring in the long term as well. A study of 609 patients with a median follow-up of 3.7 years and the ten-year follow-up of the original randomised trial both found no late event attributable to FMT.87, 30 This does not mean, however, that there is no risk: mild, transient complaints related to the procedure are common.

Scientific background →

Why the transfer helps

Colonisation resistance — the protective net of the gut flora

The Clostridioides difficile is a toxin-producing bacterium that can also be present alongside a healthy gut flora without causing trouble. The infection develops when this balance is disrupted — typically after a course of antibiotics. An intact microbial community maintains colonisation resistance in the gut: it takes away the nutrients, produces inhibitory metabolites, and creates a bile-acid pattern in which the spores of C. difficile cannot germinate.

Intact gut flora diverse bacteria nutrient competition protective bile-acid pattern antibiotic Disrupted flora reduced species richness nutrients set free C. difficile overgrows MTT Protective net restored donor microbiota diversity recovering the spore does not germinate

Schematic diagram. Colonisation resistance is the combination of several parallel mechanisms; the diagram highlights the three best documented. The details of the process and the studies cited are discussed on the scientific background page.

The Microbiota transfer therapy (MTT) — commonly known as faecal transplantation — involves delivering gut microbiota from a thoroughly screened, healthy donor in capsule form so that this protective net can be restored. For more on this, the Microbiota Guide and the Microbiota Handbook are worth reading.

What patients ask most often

Safety you can rely on

Donor screening

Every donor undergoes bacteriological, virological, parasitological and serological testing, stool testing and detailed medical-history screening under the DSQ donor screening framework.

Batch identification

Every capsule we ship carries a LOT number (a manufacturing batch identifier), so it can be traced back to the donor at any time.

SIS-based dose

We do not estimate the starting dose: the SIS score is established from 23 weighted variables on the basis of four validated medical models, and it ties the treatment intensity to a band.

Medical supervision throughout

We do not start a protocol without a treating physician. The capsule is in every case prescribed by the treating physician.

Follow-up

We track the symptoms throughout the course with an online questionnaire. If they have not eased after 15 days, we provide an online consultation and modify the protocol in consultation with the treating physician.

Known side effects

In the studies, mild, transient complaints related to the procedure are common (bloating, abdominal discomfort, transient diarrhoea, slightly raised temperature); serious events are rare.

No two cases are the same

Why not everyone receives the same dose

The success of the treatment depends on the bacterial concentration and the length of the treatment — and this differs from patient to patient. We determine the appropriate dose on the basis of the SIS (Symptom Importance Scale) score: this scoring system turns your symptoms, your laboratory results and your risk factors into a single number on a 0–100 scale.

You do not have to fill it in on your own. From the questionnaire and your test results we calculate it and show you which band your case falls into. The band decides the dose strength we start with, how long the initial phase lasts, and from when it can be reduced. The more severe the condition, the higher the starting dose and the longer the course; as your condition improves, the dose is reduced in steps.

What is worth remembering from this. The starting dose is a mandatory initial value, not a recommendation. A higher band maximum comes into question only if there is no meaningful improvement beyond 48 hours — it is not a freely chosen range. In the mildest band no capsule is needed at all.

The SIS scoring system → SIS severity scale (PDF)

Common questions

What patients usually ask us

When is MTT recommended at all in C. difficile infection?
The European (ESCMID 2021) and American (IDSA/SHEA 2021) guidelines recommend it for the treatment of second and further recurrences over standard antibiotic treatment. In a first episode fidaxomicin or vancomycin is the first choice; a 2025 randomised trial examined FMT in primary infection as well, but this is not yet a guideline recommendation.57
Do I have to stop the antibiotic?
Not at the same time. The antibiotic also acts on the gut flora, so we start the course after the antibiotic has been completed. The timing of the antibiotic and of the microbiota transfer is determined by the treating physician, and do not stop the antibiotic on your own decision. The order and the timing of the two treatments matter for the expected effect.
How long does it take to work?
In the trials the diarrhoea typically stopped within days. The initial phase and the gradual adjustment of the dose follow a predefined protocol, but may vary according to the individual condition and consultation with the treating physician. If the symptoms do not ease within the expected time, we consult and adjust. The detailed protocol is set out in the downloadable professional document.
What happens if it does not work?
It happens. In the studies, repeat treatment was successful in some of the patients who did not respond. There is a decision point on both day 10 and day 15 of the process, and you can stop at either. We do not build in automatic repetition.
Can I swallow the capsule?
The capsules can be opened if necessary and their contents mixed into cold food or drink. If taking them is not workable, we will say so in advance: we do not start a course that cannot be seen through.
Is this safe?
The largest pooled safety review processed the data of 4241 patients in 129 studies; the long-term follow-up studies, for their part, found no late event attributable to FMT.15, 87 Mild, transient complaints are nevertheless common, and in immunosuppressed patients the risk requires individual assessment.
Where does the donor material come from and how is it screened?
Every donor undergoes bacteriological, virological, parasitological and serological testing, stool testing and detailed medical-history screening under the DSQ donor screening framework that we operate. Every capsule shipped can be traced by its LOT number.
Is a treating physician required?
Yes, one is needed. If your treating physician is uncertain, send them the MTT Clinical Protocol Guide v7.1 PDF — we wrote it for colleagues, with references. On request our specialist will liaise with them directly. If you do not have one, we will suggest a treating physician for you.
What is the difference between DiffBiome and HospBiome?
The DiffBiome is for treatment at home, in a 30-capsule pack. HospBiome is of higher density, made for patients cared for in hospital, and can only be ordered by a healthcare institution. If inpatient care is needed, we arrange it with the institution.
What is the smallest quantity that can be ordered?
For the DiffBiome course, 1 box (30 capsules). For a HospBiome institutional order the minimum is 120 packaging units (20 treatment units, that is, the minimum quantity needed to treat 20 patients).
How long does the whole process take from applying?
The call back happens within 1–2 working days. We assemble the capsules ordered within 72 hours and hand them over to the courier service ready for shipping.
What is the legal and regulatory background?
Microbiota transfer therapy in recurrent C. difficile infection is a procedure recommended in international professional guidelines (ESCMID 2021, IDSA/SHEA 2021); in Hungary, however, it is not an authorised medicinal product: we provide the service within individual care directed by a treating physician. We deliver the capsules under the „to the doctor's hand” system; the decision to use them rests in every case with the treating physician. This service is not a substitute for professional medical advice, diagnosis or treatment.

More questions

Documents

Downloadable materials

SIS severity scale

The Symptom Importance Scale turns your symptoms, laboratory results and risk factors into a single number in the 0–100 range. This document describes the bands, the treatment intensity belonging to each, and the rules for reducing the dose. You can also take it with you to your treating physician.

SIS severity scale (PDF) →

For treating physicians

If you are a treating physician, or the patient asks you for an opinion: treatment follows the MTT Clinical Protocol Guide v7.1 which sets out patient selection, dose determination, the rules of escalation and gradual tapering, donor screening requirements and the follow-up steps. Referring a patient requires no separate agreement: a single message is enough and we will initiate the professional consultation.

Clinical Protocol Guide v7.1Professional consultation →

Get in touch

Let us talk about your case

Write briefly about the problem you are turning to us with and, if there is one, who referred you to us. We will review whether it makes sense to start in your case — and if we see that it does not, we will say so.

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MicroBiome Bank does not sell products; it connects donors and recipients by providing professional medical services: it organises the recruitment of donors and their screening in a certified laboratory, the stool tests, and the processing of the screened donation into capsule form. The contents of the capsules remain the property of the donor until the recipient has paid in full. The brand names of the services serve to make them easier to remember. We deliver the capsules “to the doctor’s hand”, and they are to be used under the guidance of a treating physician. For detailed information, please contact us. The MicroBiome Bank service is not a substitute for professional medical advice, diagnosis or treatment. The decision to use it rests in every case with the treating physician.