ATLAS trial

2024-517233-40-00 Protocol 80-86600-98-19047 Therapeutic use (Phase IV) Authorised, recruitment pending

Status Authorised, recruitment pending · 1 EU/EEA countries · 11 sites · Protocol 80-86600-98-19047

Overview

Sponsor-declared trial summary

Phase Therapeutic use (Phase IV)
Status Authorised, recruitment pending
Participants planned 298
Countries 1
Sites 11

Perianal abscess

The main objective of this trial is to establish if adding antibiotic treatment to surgical drainage of perianal abscess results in less perianal fistulas.

Key facts

Sponsor
Amsterdam UMC Stichting, Proctos kliniek
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Digestive System Diseases [C06]
Decision date (initial)
2024-11-11
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
ZonMw

External identifiers

EU CT number
2024-517233-40-00
EudraCT number
2020-004449-35
ClinicalTrials.gov
NCT05385887

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Prophylaxis, Therapy

The main objective of this trial is to establish if adding antibiotic treatment to surgical drainage of perianal abscess results in less perianal fistulas.

Secondary objectives 7

  1. Quality of life
  2. Costs and cost-effectiveness
  3. Recurrent abscesses
  4. Repeated drainage
  5. Patient reported outcome measures
  6. Complications
  7. Clinical outcomes

Conditions and MedDRA coding

Perianal abscess

VersionLevelCodeTermSystem organ class
20.1 LLT 10002645 Anorectal fistula 10017947
20.0 PT 10002156 Anal fistula 100000004856
20.0 LLT 10048428 Abscess perianal 10021881
20.0 LLT 10013623 Drainage of perianal abscess 10042613
20.1 LLT 10034447 Perianal abscess 10021881
20.1 LLT 10002645 Anorectal fistula 10017947
20.0 LLT 10034448 Perianal abscess drainage 10042613
20.0 PT 10002156 Anal fistula 100000004856
20.1 LLT 10068659 Perianal fistula 10017947

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 4

  1. Adults >18 years old
  2. Eligible for email questionnaires
  3. Sufficient understanding of the Dutch written language (reading and writing)
  4. Obtained written informed consent

Exclusion criteria 16

  1. A coexistent anorectal/anal fistula
  2. Recurrent anorectal abscess
  3. Any additional surgical procedure performed during the same session
  4. Previous (peri)anal surgery
  5. Inflmmatory bowel disease
  6. History of radiation of the pelvic area
  7. (previous) anorectal malignancy
  8. Immunodeficiency
  9. Valvular heart disease
  10. Kidney failure (eGFR <30 ml/min)
  11. Pregnancy or lactation
  12. Postoperative antibiotic prophylaxis indicated for another reason
  13. Immunosuppressive medication at the time of surgery
  14. Allergy to ciprofloxacin or metronidazole
  15. Not able or trouble with swallowing pills
  16. Concomitant use of:Tizanidine, theophylline, clozapine, olanzapine, pirfenidone, carbamazepine, agomelatine (these are all CYP1A2 substrates, ciprofloxacin is an inhibitor) o Amiodarone, erythromycin, sotalol, azithromycin, citalopram, escitalopram, flecainide, fluconazole, haloperidol >5mg/day, methadone, ondansetron (concerning prolonged QT interval in combination with ciprofloxacin), Lithium (can cause toxic levels with metronidazole), Lopinavir/ritonavir, ritonavir capsules, temsirolimus, disulfiram (antabuse), mebendazole (can cause serious side effects, confusion and psychosis in combination with metronidazole), corticosteroids (in combination with ciprofloxacin higher risk of tendinitis and tendon rupture).

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Development of a perianal fistula within one year.

Secondary endpoints 9

  1. Quality of life at 12 months
  2. Costs and cost-effectiveness
  3. Need of repeated drainage
  4. Recurrent abscess
  5. Complications
  6. Patient reported outcomes measures
  7. Length of hospital stay
  8. Readmissions
  9. Time till return to work

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

Metronidazol Aurobindo 500 mg, filmomhulde tabletten

PRD1780559 · Product

Active substance
Metronidazole
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
2400 mg milligram(s)
Max total dose
16800 mg milligram(s)
Max treatment duration
7 Day(s)
Authorisation status
Authorised
ATC code
J01XD01 — METRONIDAZOLE
Marketing authorisation
RVG 08652
MA holder
AUROBINDO PHARMA B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Ciprofloxacine Teva 500 mg filmomhulde tabletten

PRD3791646 · Product

Active substance
Ciprofloxacin
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Max daily dose
1500 mg milligram(s)
Max total dose
10500 mg milligram(s)
Max treatment duration
7 Day(s)
Authorisation status
Authorised
ATC code
J01MA02 — CIPROFLOXACIN
Marketing authorisation
BE291453
MA holder
TEVA PHARMA BELGIUM N.V./S.A
MA country
Belgium
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Placebo 1

Placebo tablets, Tiofarma B.V.,

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Amsterdam UMC Stichting

Sponsor organisation
Amsterdam UMC Stichting
Address
De Boelelaan 1117
City
Amsterdam
Postcode
1081 HV
Country
Netherlands

Scientific contact point

Organisation
Proctos kliniek
Contact name
Principal Investigator

Public contact point

Organisation
Proctos kliniek
Contact name
Principal Investigator

Proctos kliniek

Sponsor organisation
Proctos kliniek
Address
Professor Bronkhorstlaan 10, Building 60-62 Building 60-62
City
Bilthoven
Postcode
3723 MB
Country
Netherlands

Scientific contact point

Organisation
Proctos kliniek
Contact name
Ingrid Han-Geurts

Public contact point

Organisation
Proctos kliniek
Contact name
Ingrid Han-Geurts

Locations

1 EU/EEA country · 11 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Authorised, recruitment pending 298 11
Rest of world 0

Investigational sites

Netherlands

11 sites · Authorised, recruitment pending
Rode Kruis Ziekenhuis B.V.
Surgery, Vondellaan 13, 1942 LE, Beverwijk
Amphia Hospital
Surgery, Molengracht 21, 4818 CK, Breda
Stichting Elisabeth-Tweesteden Ziekenhuis
Surgery, Hilvarenbeekseweg 60, 5022 GC, Tilburg
Proctos kliniek
Surgery, Professor Bronkhorstlaan 10, Building 60-62, Bilthoven
IJsselland Ziekenhuis
Surgery, Prins Constantijnweg 2, 2906 ZC, Capelle Aan Den Ijssel
Amsterdam UMC Stichting
Surgery, Meibergdreef 9, 1105 AZ, Amsterdam
Stichting OLVG
Surgery, Oosterpark 9, 1091 AC, Amsterdam
Flevoziekenhuis Stichting
Surgery, Hospitaalweg 1, 1315 RA, Almere
Stichting OLVG
Surgery, Jan Tooropstraat 164, 1061 AE, Amsterdam
Dijklander Ziekenhuis
Surgery, Maelsonstraat 3, 1624 NP, Hoorn Nh
Diakonessenhuis Stichting
Surgery, Bosboomstraat 1, 3582 KE, Utrecht

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 5 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Procotol_2024-517233-40-00 5.0
Recruitment arrangements (for publication) 2024-517233-40-00_blank document 1
Subject information and informed consent form (for publication) L1_ SIS and ICF_2024-517233-40-00 3
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Ciprofloxacine 500mg Aurobindo 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Metronidazol 500mg Aurobindo 1

Application history

1 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-10-09 Netherlands Acceptable
2024-11-11
2024-11-11