Fecal Microbial Transplant- A New Hope of Treatment for Ulcerative Colitis

Hena, Akshay, Anupam, Raman, Vidyut, and Leena: Fecal Microbial Transplant-A New Hope of Treatment for Ulcerative Colitis

Authors

INTRODUCTION

Ulcerative colitis (UC) is a chronic idiopathic inflammatory bowel disease (IBD) of intestines in genetically predisposed individuals associated with well-defined extra-intestinal complications. The disease course is characterized by spontaneous remission and relapses. The pathophysiology involves an aberrant immune response to the gut microbiota.1 Incidence rates of IBD are increasing in areas of the world previously unaffected by the disease. In the first half of twentieth century the annual incidence for ulcerative colitis was reported to be 6.0/100,000 for the period 1934-1944 and 1.9/100,000 for the period 1935-1954 from Rochester Minnesota.2,3 Also, Jewish ethnicity and high socioeconomic status was found to be a risk factor for the development of IBD.4 At the end of the 20th century an epidemic of IBD was noticed mainly affecting Western Europe and Northern America. In the twenty-first century, the increase in incidence of IBD was reported from various regions of the world including Asia, Africa, Middle East and an increase in trend was reported from other areas of Europe and America.5 Ulcerative colitis was first reported from India in the late 1930s.6 Later on the existence of the disease was reported in the northern and western parts of the country. Amongst Asian countries, India has the highest incidence and prevalence of ulcerative colitis followed by Japan and Korea.6 With the changing epidemiology of IBD, it is predicted that there will be an increase in IBD patients in Asia, Southern America as well as East Europe.5 The high cost of second line drugs along with the need for life long therapy are the most distressing factors demanding the new innovative therapy for the treatment of the disease. Garg et al have evaluated the efficacy and safety of helminth treatment for induction of remission in inflammatory bowel disease.7 However, currently, there is insufficient evidence to allow any firm conclusions regarding this unconventional modality of treatment and this warrants further studies. Hence, there is need for diverse and innovative strategies to find out the etiology, prevention and treatment of this disease.

Fecal microbial transplantation (FMT) is a new hope for the treatment of ulcerative colitis patients.8 It involves the delivery of stool from a healthy pre-screened donor to an individual with disease. FMT is being recognized as a treatment modality for the various gastrointestinal diseases associated with intestinal dysbiosis. The first use of FMT in humans was reported in 1958 in a case series of 4 patients with pseudomembranous enterocolitis.9 There are various studies showing the usefulness of FMT for the treatment of recurrent Clostridium difficile infections (CDI).10,11,12 FMT restores the healthy commensal bacteria in the intestines thereby correcting intestinal dysbiosis associated with Clostridium difficile infection. The exact etiology of ulcerative colitis is unknown. The etiologic factors potentially found to be contributing to ulcerative colitis include genetic factors, immune system reactions, environmental factors, nonsteroidal anti-inflammatory drug (NSAID) use, low levels of antioxidants, psychological stress factors, a smoking history, and consumption of milk products. The environmental factor playing a major role in the disease etiology is the altered bacterial flora.13 So, the restoration of bacterial flora can be an approach for the treatment of patients with ulcerative colitis. There are certain safety and ethical issues associated with FMT. The issues associated with FMT are adequate screening of donor fecal matter, cleanliness and worsening of ulcerative colitis. FMT may be administered to the proximal colon via colonoscope, the distal lower gastrointestinal tract via enema, rectal catheter, and the upper GI tract through a nasogastric tube, a nasoduodenal tube or a gastroscope.14

We are hereby reporting our findings in a child with ulcerative colitis who was treated with fecal microbial transplantation at our institute. To the best of our knowledge, the use of FMT for the treatment of ulcerative colitis is being reported for the first time in India.

MATERIAL AND METHODS

Case Selection

This six year old child was diagnosed as case of ulcerative colitis on the basis of history, examination, serology, colonoscopy and histopathology. He was initially admitted at our institute in February 2012 with history of loose, watery stools with mucus and blood for one year associated with periumbilical pain. Repeated microscopic examination of stool sample showed 20-25 pus cells per high power field and visible blood. No cyst or ova of parasites were detected in any of the stool samples. Special stains for parasites also did not reveal any abnormal findings. The culture examination of stool showed no growth of enteropathogenic bacteria. Testing for Clostridium difficile toxin was negative on three separate stool specimens. He was given trial of antimicrobials like cefixime, metronidazole and ofloxacin with no response. He underwent colonoscopy which was suggestive of pancolitis. Laboratory investigations including complete blood count, liver enzymes, albumin, erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) were within normal limits. Other investigations also did not reveal any immunodeficiency disorder. Prednisolone and Mesalamine was started. He improved significantly after this but relapsed on tapering steroids. In April 2013, patient was started on specific carbohydrate diet (no dairy, no grains and restricted carbohydrate) in addition to conventional therapy to which he responded favourably and remained symptom free till October 2013. He subsequently had two more relapses on tapering steroids. He was again started on steroids, 5-ASA derivatives and specific carbohydrate diet. The response to treatment was intermittent with relapses interspersed between periods of symptomatic remission. In view of inadequate response to treatment and parents opting against the use of immunosuppressive they contacted our institute for FMT. The disease severity of the child was ascertained by Paediatric Ulcerative Colitis Activity Index(PUCAI).15 The various components of PUCAI with their grading are abdominal pain (0,5,10), rectal bleeding (0,10,20,30), stool consistency of most stools (0,5,10), number of stools per 24 h (0,5,10,15), nocturnal stools (any episode causing wakening- 0, 10) and activity level (0,5,10).The sum of each of the component is done to calculate PUCAI (Total sum 0-85). On the basis of PUCAI, the disease severity in our patient was defined as moderate (PUCAI= 35). Hence, the procedure for FMT was planned in June 2014.

Donor selection and screening tests

In our case, the parents of the patient approached us for FMT procedure. Institutional ethics committee clearance was obtained prior to the procedure. Appropriate consent form was signed by the parents stating the investigational nature of the FMT treatment, its possible side-effects and the procedure being conducted for the first time by our hospital.

Apparently healthy, immunocompetent adult donor from the family (patient’s biological father) with no previous history of C.difficile infection/inflammatory bowel disease was screened for various infections. The other exclusion criteria for the donor were any history of Irritable Bowel Syndrome (IBS), abdominal pain, gastrointestinal malignancy, prolonged diarrhea or blood in stool, antibiotic/antimicrobial use within one month before FMT. The donor was screened for Hepatitis A, B and C (Anti HAV IgM, HBsAg, AntiHBs, AntiHBc, Anti HCV), Epstein Barr Virus (viral capsid antigen IgM), Cytomegalovirus (AntiCMVIgM), Syphilis (VDRL and TPHA), HIV (Anti HIV 1 and 2). The various stool tests performed were routine and microscopic examination for ova and cyst, occult blood, Modified Zeihl Neelsen staining for Cryptosporidium, stool culture for Salmonella, Shigella, Vibrio, diarrheagenic Escherichia coli, Listeria, Campylobacter, Real Time PCR for Yersinia, Campylobacter, Clostridium difficile, Salmonella, Shigella/Enteroinvasive Escherichia coli, Enterohaemorrhagic/verotoxin producing Escherichia coli and Clostridium difficile toxin detection. All the tests done on the donor were found to be satisfactory.

Donor fecal sample preparation

The donor was counselled properly regarding sample collection. The donor had to produce about 100 g of fecal specimen daily for five consecutive days. The sample preparation was done in biosafety cabinet in a designated laboratory which was properly cleaned and disinfected with three cycles of ecoshield. Fecal sample was blended with 250 ml sterile warm (37.8ºC) normal saline for one min. This blended mixture was filtered through two sterile gauze pieces to remove larger sediments. Filtered fecal preparation was aliquoted in presterilized empty enema pouches of 60 ml each and these enema pouches were kept in warm water bath (37.8ºC) until FMT was administered. FMT was administered within 6 h of production of stool sample.

FMT procedure

No bowel preparation (clean out or antibiotic pre-treatment) was done before FMT. Patient received FMT as retention enema for 1 h (60 ml enema every 15 min) daily for 5 days. Each 60 ml enema was infused slowly over a time period of 5 min. The patient was then turned 180 degrees from left lateral to right lateral position and then back to left lateral position slowly during a 10 min period. Patient was monitored for 30 min after FMT for any immediate adverse events and discharged.

RESULTS

Our patient tolerated the enema well. There was no immediate leaking of enema during administration and the patient was able to retain enema for at least one h after administration. On the first day, only three enemas could be given because the child was apprehensive. Enema was given under sedation for next four days after taking informed consent from the patient attendants. The Paediatric Ulcerative Colitis Activity Index (PUCAI) at the time of FMT was 35 and it was reduced to 15 after five days of completion of treatment. Continuous follow-up of the child is being done. Presently, the child is on normal diet and his medication is being tapered. The child is showing improvement in symptoms and has not had any relapse since then.

DISCUSSION

In case of recurrent Clostridium difficile infections, FMT has demonstrated a rapid response and cure rate exceeding 90% with a negligible significant adverse event rate, regardless of route.16 The published studies showing benefits of FMT are mainly limited for recurrent Clostridium difficile infections. There are not much published studies showing benefits of FMT for the treatment of ulcerative colitis. Angelberger S et al., in their study on temporal bacterial community dynamics among ulcerative colitis patients post FMT found clinical response in one out of five patients with moderate to severe ulcerative colitis.17 Kunde S et al., in their study on FMT on ten children, 7 to 21 years of age, with mild-to-moderate ulcerative colitis found fecal enemas to be efficacious, feasible and tolerated by children. They reported 78% clinical response within 1 week; clinical remission in 33% of patients; and only mild and self-limiting adverse events.18 Dr. Paul Moayyedi and his colleagues from McMaster University in Hamilton, Ontario, Canada evaluated ambulatory patients with active ulcerative colitis with FMT and presented results for the first 61 of an anticipated 130 patients to complete the trial at Digestive Disease Week 2014. They did not found significant improvement in patients with ulcerative colitis treated with fecal microbiota therapy after 6 weeks of treatment. Patients who received FMT reported some improvement after treatment, but they were not in remission at 7 weeks. However, in a later study conducted on 70 patients, Moayyedi et al observed that FMT induces remission in a significantly greater percentage of patients with active ulcerative colitis than placebo, with no difference in adverse events.19 Rossen et al in their study to assess the efficacy and safety of FMT for patients with ulcerative colitis, observed that there was no statistically significant difference in clinical and endoscopic remission between patients with ulcerative colitis who received fecal transplants from healthy donors and those who received their own fecal microbiota. However, the microbiota of responders had distinct features from that of non-responders.20

In India, Ulcerative colitis is now being diagnosed more frequently. In North India, it has been found to be responsible for a hospital admission rate of 12/10,000.21 The proportion of IBD have been reported to be 0.03% per year (33 per 100,000) of all new pediatric patients attending a South Indian hospital with pediatric patients accounting for approximately 7% of all new cases of IBD seen annually.22 Environmental factors such as diet and urbanization play an important role in the development of ulcerative colitis. So, the disease is being increasingly reported in parts of world where these diseases used to be rare. The goals of IBD treatment are to induce and maintain remission of both clinical symptoms and mucosal inflammation, and to re-establish the intestinal barrier, so as to reduce relapse and complication, and to improve quality of life. In cases of failure of remission or maintenance, new biological or surgery should be considered.23 FMT can be considered for such cases. There is no consensus on the optimal protocol of FMT but the overall success rate of FMT has been reported to be 90% irrespective of the methodology used. We have used the retention enema technique in our case and it was found to be feasible and acceptable.

FMT has successfully been used for the decolonization of the gut of a young girl who persistently harboured multidrug-resistant Klebsiella pneumoniae bacteria causing recurrent infections. Post FMT carbapenem-resistant Klebsiella was not detectable in a stool sample and remained undetectable in 4 stools over the next 8 months and also there was no further clinical evidence of bacterial infection in the patient.24

CONCLUSION

Our study is a step towards the usage of FMT for patient with ulcerative colitis and is an encouraging step for the future use of this therapy for the patients with poorly controlled ulcerative colitis. Further studies are required for the use of FMT in children with ulcerative colitis and also to establish its emerging role in replacement of gut flora as a therapy for managing chronic multidrug resistant organisms in the patients.

Notes

[1] Conflicts of interest CONFLICT OF INTEREST The authors declare no conflict of interest.

ABBREVIATIONS USED

Anti CMV

Antibodies against Cytomegalovirus

Anti HAV

Antibodies against Hepatitis A Virus

Anti HBc

Antibodies against Hepatitis B core antigen

Anti HBs

Antibodies against Hepatitis B surface antigen

Anti HCV

Antibodies against Hepatitis C Virus

5-ASA

5-Aminosalicylic acid

C

Celsius

g

gram

h

hour

HBsAg

Hepatitis B surface antigen

HIV

Human Immunodeficiency Virus

IgM

Immunoglobulin M

ml

milliliter

min

minute

PCR

Polymerase Chain Reaction

VDRL

Venereal Disease Research Institute

TPHA

Treponema Pallidum Haemagglutination

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