Evidence map›Paper›PMID 19371314›Full record

Trial reportBritish journal of clinical pharmacology2009

Influence of food intake on the bioavailability and efficacy of oral calcitonin.

Morten A Karsdal, Inger Byrjalsen, Möise Azria, Michel Arnold, Les Choi, Bente J Riis, Claus Christiansen

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Review
  7. Article
  8. Lessons learned from the clinical development of oral peptides.British journal of clinical pharmacology · 2015
    Review
  9. The future of blood-based biomarkers for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2014
    Review
  10. Article
  11. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Morten A KarsdalNordic Bioscience A/S, Herlev, Denmark. mk@nordicbioscience.com
Inger Byrjalsen
Möise Azria
Michel Arnold
Les Choi
Bente J Riis
Claus Christiansen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo investigate the influence of food intake on the bioavailability and pharmacodynamic effects of salmon calcitonin (sCT).

methodsA single-blind, randomized, partly placebo-controlled study was conducted in 36 healthy postmenopausal female volunteers aged 62-74 years. The influence of food intake on oral dosing with 0.8 mg of sCT at 22.00 h was evaluated for a (i) predose meal at 18.00 h, (ii) predose meal at 20.00 h, (iii) predose meal at 21.00 h, (iv) postdose meal at 22.10 h, (v) no meal, and (vi) meal at 20.00 h and placebo at 22.00 h. Study biomarkers were plasma sCT levels and changes in the bone resorption marker CTX-I (C-terminal telopeptide of collagen type I).

resultsThe predose meal at 18.00 and 21.00 h significantly decreased relative oral bioavailability of sCT to 26% [95% confidence interval (CI) 0.09, 0.73 and 0.09, 0.75, P= 0.009 and P= 0.01]. The meal consumed 10 min after dosing decreased the oral bioavailability of sCT to 59% (95% CI 0.21, 1.68), although nonsignificant (P= 0.48). This decreased bioavailability led to lower relative suppression of serum CTX-I, with an AUC of the 4-h efficacy response of -91%-x-hours for those receiving a meal at 18.00 h, compared with -238%-x-hours for fasting subjects. The Dunnett-adjusted difference between these two treatment sequences was 147%-x-hours (95% CI 68, 225) (P= 0.0003). The AUC was comparable among fasting subjects and those consuming a meal 10 min after dosing.

conclusionsPostprandial dosing may limit the bioavailability of orally administered sCT. Maximal benefit can be achieved by dosing at least 10 min prior to meal time.

Indexed as

Administration, OralAgedArea Under CurveBiological AvailabilityBiomarkersBone DensityBone Density Conservation AgentsBone ResorptionCalcitoninCollagen Type IEatingFastingFemaleHumansMiddle AgedSingle-Blind MethodBiomarkersBone Density Conservation AgentsCalcitoninCollagen Type Isalmon calcitonin

Identifiers

PMID19371314
PMCPMC2679104

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.