NCT05042700

Brief Summary

The primary objective of the study is to investigate whether treatment with melatonin has an alleviating effect on Low Anterior Resection Syndrome (LARS) symptoms. Secondarily, the effect of the treatment on bowel movements, other patient reported symptoms, quality of life, depression, anxiety, sleep disturbances, motilin levels, and microscopic changes in rectal mucosa will be investigated.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
21

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 30, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

September 13, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

October 13, 2021

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

April 25, 2023

Status Verified

April 1, 2023

Enrollment Period

2.1 years

First QC Date

August 30, 2021

Last Update Submit

April 24, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Low Anterior Resection Syndrome Score

    The LARS Score questionnaire is filled out by the participants before and after each treatment period.

    4 weeks

Secondary Outcomes (14)

  • Daily bowel function

    4 weeks

  • Self-reported quality of life

    4 weeks

  • Other patient reported symptoms

    4 weeks

  • Anxiety

    4 weeks

  • Depression

    4 weeks

  • +9 more secondary outcomes

Study Arms (2)

Melatonin-Placebo sequence

EXPERIMENTAL

50% of the included patients will receive 4 weeks of treatment with melatonin, followed by a 4 week wash out period, and then 4 weeks of treatment with placebo. The treatments are blinded.

Drug: MelatoninDrug: Placebo

Placebo-Melatonin sequence

EXPERIMENTAL

50% of the included patients will receive 4 weeks of treatment with placebo, followed by a 4 week wash out period, and then 4 weeks of treatment with melatonin. The treatments are blinded.

Drug: MelatoninDrug: Placebo

Interventions

Enema with 25 mg melatonin

Melatonin-Placebo sequencePlacebo-Melatonin sequence

Enema without melatonin

Melatonin-Placebo sequencePlacebo-Melatonin sequence

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients should have major LARS (LARS score \>29).
  • Patients should have undergone bowel continuity restoring surgery between the last 3 to 24 months.
  • Participants should be 18 years or older.
  • Participants must sign an informed consent form.

You may not qualify if:

  • Known allergic reaction to melatonin.
  • Dementia as determined by mini mental state examination score (MMSE) \< 24.
  • Completed any adjuvant oncological treatment within the last three months.
  • Ongoing oncological treatment.
  • Rotor or Dubin-Johnson syndrome, epilepsy, systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), Parkinson's disease, spinal cord injury and multiple sclerosis.
  • Severe liver disease defined as transaminases above 3 times the normal levels, and severe kidney disease defined as eGFR below 40 ml/min.
  • Daily ongoing hypnotic treatment.
  • Pre-existing medical sleep disorder diagnosed before the diagnosis of rectal cancer (i.e sleep apnea, restless legs, narcolepsy.)
  • Work involving nightshifts.
  • Daily alcohol consumption above 5 units of alcohol (1 unit = 12 g alcohol)
  • Predictable poor compliance (due to pre-existing psychiatric disease, dementia or not able to read or speak sufficient Danish)
  • Pregnant or breastfeeding.
  • Severe, life-threatening medical condition, that implies that the patient cannot participate in the study course. (e.g. metastatic disease, local recurrence, stroke, AMI).
  • Females not in menopause (defined as no menstruation during the last 12 months) should not be pregnant. Furthermore, reproductive females should use a secure birth control (intrauterine devices, hormonal contraceptives including - oral pills, patches, vaginal rings and injections) during the entire period of the trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zealand University Hospital

Køge, Region Sjælland, 4600, Denmark

Location

Related Publications (1)

  • Zahid JA, Madsen MT, Bulut O, Christensen P, Gogenur I. Effect of melatonin in patients with low anterior resection syndrome (MELLARS): a study protocol for a randomised, placebo-controlled, crossover trial. BMJ Open. 2023 Sep 11;13(9):e067763. doi: 10.1136/bmjopen-2022-067763.

MeSH Terms

Conditions

Low Anterior Resection Syndrome

Interventions

Melatonin

Condition Hierarchy (Ancestors)

Colonic DiseasesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesRectal DiseasesPostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

TryptaminesIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsHormonesHormones, Hormone Substitutes, and Hormone Antagonists

Study Officials

  • Ismail Gögenur, DMSc

    Zealand University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 30, 2021

First Posted

September 13, 2021

Study Start

October 13, 2021

Primary Completion

December 1, 2023

Study Completion

December 1, 2023

Last Updated

April 25, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations