NCT05298891

Brief Summary

Since protein and AAs are master regulator of GH and IGF-I secretion, we hypothesized that a low protein diet could reduce GH and IGF-I levels in acromegalic patients in addition to conventional therapy. Furthermore, we aim to explore metabolomic, microbiota, and micro-vesicle fingerprints of GH hypersecretion during conventional therapy and after a low protein diet

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
12

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2024

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

March 18, 2022

Completed
10 days until next milestone

First Posted

Study publicly available on registry

March 28, 2022

Completed
2.4 years until next milestone

Study Start

First participant enrolled

September 1, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

September 28, 2023

Status Verified

September 1, 2023

Enrollment Period

1.2 years

First QC Date

March 18, 2022

Last Update Submit

September 27, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in disease related hormones

    Variation of GH, IGF-1, IGFBP1, IGFBP3 hormones

    Change from Baseline GH, IGF-1, IGFBP1, IGFBP3 blood levels at 15 days, 30 days, 45 days, 60 days

Secondary Outcomes (16)

  • Change in weight

    Change from Baseline BMI at 15 days, 30 days, 45 days, 60 days

  • Change in body circumferences

    Change from Baseline circumferences at 15 days, 30 days, 45 dyas, 60 days

  • Change in metabolic control

    Change from Baseline lipid profile at 15 days, 30 days, 45 days, 60 days

  • Change in metabolic control

    Change from Baseline lipid profile at 60 days

  • Change in kidney profile

    Change from Baseline Serum Creatinin at 15 days, 30 days, 45 days, 60 days

  • +11 more secondary outcomes

Study Arms (1)

Acromegalic adult in therapy with somatostatin analogues

EXPERIMENTAL

Patients will continue the usual medical outpatient visits cadency and will keep the same pharmacological therapy throughout the whole duration of the study. Drugs have to include somatostatin analogues. At the same time, patients will be trained by an expert dietician in the habit of an isocaloric and hypoproteic diet and will come back at 2,4,6 and 8 weeks after T0 for all the necessary study assessments and compliance checking.

Other: Usual clinical practice + hypoproteic diet

Interventions

Diet will be composed by: * energy equal to daily energy expenditure (estimated by indirect calorimetry \* physical activity factor) * fats 28-35% * carbohydrates 50-60% * proteins 0,7-0,8g/kg of body weight 10-13% Diet will be given to the patient after the first visit and the study will start once the patient begins the diet.

Acromegalic adult in therapy with somatostatin analogues

Eligibility Criteria

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

You may qualify if:

  • Age 18/65
  • Diagnosis of Acromegaly
  • In therapy with somatostatin analogues

You may not qualify if:

  • pregnancy or lactation
  • alchool or drugs abuse
  • cancer
  • Hematological diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

: Italy Pediatric Endocrine Service of AOU Maggiore della Carità of Novara; SCDU of Pediatrics, Department of Health Sciences, University of Eastern Piedmont

Novara, 28100, Italy

Location

Related Publications (11)

  • Caputo M, Pigni S, Agosti E, Daffara T, Ferrero A, Filigheddu N, Prodam F. Regulation of GH and GH Signaling by Nutrients. Cells. 2021 Jun 2;10(6):1376. doi: 10.3390/cells10061376.

    PMID: 34199514BACKGROUND
  • Suminski RR, Robertson RJ, Goss FL, Arslanian S, Kang J, DaSilva S, Utter AC, Metz KF. Acute effect of amino acid ingestion and resistance exercise on plasma growth hormone concentration in young men. Int J Sport Nutr. 1997 Mar;7(1):48-60. doi: 10.1123/ijsn.7.1.48.

    PMID: 9063764BACKGROUND
  • van Vught AJ, Nieuwenhuizen AG, Brummer RJ, Westerterp-Plantenga MS. Effects of oral ingestion of amino acids and proteins on the somatotropic axis. J Clin Endocrinol Metab. 2008 Feb;93(2):584-90. doi: 10.1210/jc.2007-1784. Epub 2007 Nov 20.

    PMID: 18029456BACKGROUND
  • Sellini M, Fierro A, Marchesi L, Manzo G, Giovannini C. [Behavior of basal values and circadian rhythm of ACTH, cortisol, PRL and GH in a high-protein diet]. Boll Soc Ital Biol Sper. 1981 May 15;57(9):963-9. Italian.

    PMID: 6269563BACKGROUND
  • Levine ME, Suarez JA, Brandhorst S, Balasubramanian P, Cheng CW, Madia F, Fontana L, Mirisola MG, Guevara-Aguirre J, Wan J, Passarino G, Kennedy BK, Wei M, Cohen P, Crimmins EM, Longo VD. Low protein intake is associated with a major reduction in IGF-1, cancer, and overall mortality in the 65 and younger but not older population. Cell Metab. 2014 Mar 4;19(3):407-17. doi: 10.1016/j.cmet.2014.02.006.

    PMID: 24606898BACKGROUND
  • Allen NE, Appleby PN, Davey GK, Kaaks R, Rinaldi S, Key TJ. The associations of diet with serum insulin-like growth factor I and its main binding proteins in 292 women meat-eaters, vegetarians, and vegans. Cancer Epidemiol Biomarkers Prev. 2002 Nov;11(11):1441-8.

    PMID: 12433724BACKGROUND
  • Hoppe C, Udam TR, Lauritzen L, Molgaard C, Juul A, Michaelsen KF. Animal protein intake, serum insulin-like growth factor I, and growth in healthy 2.5-y-old Danish children. Am J Clin Nutr. 2004 Aug;80(2):447-52. doi: 10.1093/ajcn/80.2.447.

    PMID: 15277169BACKGROUND
  • Romo Ventura E, Konigorski S, Rohrmann S, Schneider H, Stalla GK, Pischon T, Linseisen J, Nimptsch K. Association of dietary intake of milk and dairy products with blood concentrations of insulin-like growth factor 1 (IGF-1) in Bavarian adults. Eur J Nutr. 2020 Jun;59(4):1413-1420. doi: 10.1007/s00394-019-01994-7. Epub 2019 May 14.

    PMID: 31089868BACKGROUND
  • Beasley JM, Gunter MJ, LaCroix AZ, Prentice RL, Neuhouser ML, Tinker LF, Vitolins MZ, Strickler HD. Associations of serum insulin-like growth factor-I and insulin-like growth factor-binding protein 3 levels with biomarker-calibrated protein, dairy product and milk intake in the Women's Health Initiative. Br J Nutr. 2014 Mar 14;111(5):847-53. doi: 10.1017/S000711451300319X. Epub 2013 Oct 7.

    PMID: 24094144BACKGROUND
  • Li R, Ferreira MP, Cooke MB, La Bounty P, Campbell B, Greenwood M, Willoughby DS, Kreider RB. Co-ingestion of carbohydrate with branched-chain amino acids or L-leucine does not preferentially increase serum IGF-1 and expression of myogenic-related genes in response to a single bout of resistance exercise. Amino Acids. 2015 Jun;47(6):1203-13. doi: 10.1007/s00726-015-1947-8. Epub 2015 Mar 5.

    PMID: 25740607BACKGROUND
  • Coopmans EC, Berk KAC, El-Sayed N, Neggers SJCMM, van der Lely AJ. Eucaloric Very-Low-Carbohydrate Ketogenic Diet in Acromegaly Treatment. N Engl J Med. 2020 May 28;382(22):2161-2162. doi: 10.1056/NEJMc1915808. No abstract available.

    PMID: 32459928BACKGROUND

MeSH Terms

Conditions

Acromegaly

Condition Hierarchy (Ancestors)

Bone Diseases, EndocrineBone DiseasesMusculoskeletal DiseasesHyperpituitarismPituitary DiseasesHypothalamic DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesEndocrine System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associated Prof. in Clinical Nutrition and MD

Study Record Dates

First Submitted

March 18, 2022

First Posted

March 28, 2022

Study Start

September 1, 2024

Primary Completion

December 1, 2025

Study Completion

March 1, 2026

Last Updated

September 28, 2023

Record last verified: 2023-09

Locations