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Adverse event reporting can be found at the bottom of the page

HomeMy Ngenla Plan

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Prescribing Information for NGENLA(somatrogon) can be found here. Prescribing Information for Genotropin (somatropin) can be found here. Adverse event reporting information can be found at the bottom of the page.

Welcome to NGENLA!Use this page to find information to support you with your prescribing of NGENLA.
My Ngenla Plan
Login to My Ngenla Plan here to use the resource to help you, and your patients, manage split dosing between pens.
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Indications1

NGENLA is indicated for the treatment of children and adolescents from 3 years of age with growth disturbance due to insufficient secretion of growth hormone (GH).

Safety1

Safety data are derived from the phase 2, multi-centre safety and dose-finding study, and the pivotal phase 3, multi-centre non-inferiority study in paediatric patients with Growth Hormone Deficiency. The data reflect exposure of 265 patients to NGENLA administered once weekly (0.66mg/kg/week).

In the phase 2, multi-centre safety and dose-finding study, 31 patients received up to 0.66mg/kg/week of NGENLA for up to 7.7 years.

The commonly reported adverse reactions after treatment with NGENLA are injection site reactions (ISRs) (25.1%), headache (10.7%) and pyrexia (10.2%).

For full information and description of selected adverse reactions refer to the Summary of Product Characteristics for NGENLA.

Very common (≥ 1/10); Common (≥ 1/100 to < 1/10), Uncommon (≥ 1/1,000 to < 1/100), Rare (≥ 1/10,000 to < 1/1,000), Very Rare (< 1/10,000) or frequency not known (cannot be estimated from the available data).

There are no reactions reported to date in the Rare, Very Rare and Frequency not known categories.

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System Organ Class Very Common Common Uncommon
Blood and Lymphatic System Disorders   Anaemia
Eosinophilia
 
Endocrine Disorders   Hypothyroidism Adrenal Insufficiency
Nervous system disorders Headache    
Eye Disorders   Conjunctivitis allergic  
Skin and subcutaneous tissue disorders     Rash generalised
General Disorders and Administration site conditions Injection site reactionsa
Pyrexia
   
Musculoskeletal and connective tissue disorders    Arthralgia
Pain in extremity
 
 

a - Injection site reactions include the following: injection site pain, erythema, pruritus, swelling, induration, bruising, haemorrhage, warmth, hypertrophy, inflammation, deformation, urticaria.

Efficacy

NGENLA is a long-acting GH with once-weekly dosing and may deliver a preferred treatment experience vs daily Genotropin. NGENLA is available with Pfizer-funded patient support and has a comparable cost to other daily GH options.1,2,3

NGENLA administered once-weekly demonstrated significant reduction in treatment burden, greater patient convenience, greater intent to comply, and greater patient preference compared with daily Genotropin (somatropin).1,2


Efficacy demonstrated non-inferiority to daily Genotropin at 1 year (N=224) 95% CI [-0.24 to 0.89]


Study Design: Open-label, multicentre, randomised, active-controlled, noninferiority study in prepubertal children with GH deficiency to assess efficacy and safety of NGENLA once weekly versus GENOTROPIN once daily after 12 months of treatment.1

Once-weekly NGENLA delivered sustained growth and maintained a consistent safety profile over 8 years 4,5,6

Key findings over 8 years:
 

  • 91% of patients (N=48) chose to continue in the Phase 2 open label extension when given the choice to continue with somatrogon 4
  • Following up to 8 years of somatrogon treatment, including 7 years of open label extension, subjects demonstrated continued growth, 4 achieved final height, and somatrogon maintained a consistent safety profile 4
  • Progressive gains in height velocity SDS were achieved 4

Data above: Year 1 is the main Phase 2 study (duration 12 months). Year 2 onwards is the Phase 2 extension study. Data adapted from Pfizer data on file: PP-NGE-GBR-0851 and PP-NGE-GBR-0421.
SDS: standard deviation scores


Data limitations

The first three years of this trial were the dose trialling portion so used unlicensed doses. Therefore, the full data from these years cannot be presented. Data are shown only for the cohort taking the approved dose of NGENLA 0.66 mg/kg/week.

  • In Year 1 there was 3 different NGENLA doses and 1 dose of Genotropin. 
  • In Year 2, those patients taking NGENLA remained on their original dose, and Genotropin recipients were randomised to one of the three NGENLA doses. 
  • From Year 3, all patients received 0.66 mg/kg/week of NGENLA. 
  • Graph does not include Year 5 data as most patients switched from single-use vials to a multi-dose pen during this year. Only 1 patient completed the whole of Year 5 using single-use vials. 
Summary of Treatment Emergent Adverse Events (TEAEs)5:
  • In Year 8, incidence of TEAEs was lower than in Years 1-7 (range: 41.9-71.4%).
  • No serious TEAEs or TEAEs leading to somatrogon withdrawal occurred. 
  • Treatment - related TEAEs occurred in 2 subjects: keeled chest acquired and scoliosis (n=1) and arthalgia (n=1). 
  • Following up to 8 years of treatment with NGENLA, patients demonstrated continued growth. 
NGENLA maintained a favourable safety profile at the end of Year 8, similar to earlier timepoints.
System Organ Class Very Common Common Uncommon
Blood and Lymphatic System Disorders   Anaemia
Eosinophilia
 
Endocrine Disorders   Hypothyroidism Adrenal Insufficiency
Nervous system disorders Headache    
Eye Disorders   Conjunctivitis allergic  
Skin and subcutaneous tissue disorders     Rash generalised
General Disorders and Administration site conditions Injection site reactionsa
Pyrexia
   
Musculoskeletal and connective tissue disorders    Arthralgia
Pain in extremity
 
 
Dosing1
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The recommended dose is 0.66 mg/kg bodyweight administered once weekly by subcutaneous injection.
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24mg Pen (20mg/ml) 60 mg Pen (50mg/ml) 
Suggested for doses less than 12mg
(bodyweight < 18kg)

Dose increments of 0.2mg
Suggested for doses 12mg and above
(bodyweight 18kg and over)

Doses > 30mg (ie. bodyweight > 45kg),
two injections are needed.

Dose increments of 0.5mg
Each prefilled pen is capable of setting and delivering the dose prescribed by the physician. Dose may be rounded up or down based on the physician's expert knowledge of the individual patient needs.

How to titrate the dose of NGENLA

Somatrogon dose may be adjusted as necessary, based on growth velocity, adverse reactions, body weight and serum insulin-like growth factor 1 (IGF-1) concentrations. Note: When monitoring IGF-1, samples should always be drawn 4 days after prior dose.

For full dosing details, refer to the Summary of Product Characteristics for NGENLA.
Storage1
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Before first use After first use
Prior to the first use, NGENLA may be stored for 3 years at 2–8°C in a refrigerator.

The unopened pre-filled pen may temporarily be held for up to 4 hours at temperatures up to 32 °C.
After first use, NGENLA may be stored for 28 days in a refrigerator (2 °C – 8 °C).

NGENLA may be held at room temperature (up to 32°C) for up to 4 hours with each injection for a maximum of 5 times. Return NGENLA to the refrigerator again after each use.

It should not be frozen and should be stored with the pen cap attached in order to protect from light.

Refer to the Summary of Product Characteristics for NGENLA for full storage information.

Starting Ngenla 

Homecare:
We offer an at home medication delivery service and face to face nursing support through a range of providers.

  • Free and flexible home delivery service of NGENLA
  • Standard Homecare service: up to 2 face-to-face or virtual home nurse visits

Starter Kit:
Each NGENLA starter kit contains*:

  • Box of swabs
  • Sharps bin
  • Box of needles 

*subject to availability

Please note that Pfizer is no longer able to provide cool bags for patients travelling with their medication. 

Ngenla Device Demonstration
Watch how to use the Ngenla pen
Welcome to NGENLA!

References:

NGENLA Summary of Product Characteristics: Click here.
Maniatis AK, Carakushansky M, Galcheva S, et al. Perception of treatment burden with once weekly Somatrogon vs once daily Genotropin in pediatric patients with growth hormone deficiency: results from a randomized phase 3 study. Poster 6895 presented at: Annual Meeting of the Endocrine Society [virtual]; March 20-23, 2021.3.
NICE. Somatropin Medicinal Forms. Available at https://www.nice.org.uk/bnf-uk-only. Accessed February 2025.
Zadik Z, Zalinska N, Iotova V, et al. An open-label extension of the phase 2 dose-finding study of once-weekly Somatrogon vs once-daily Genotropin in children with growth hormone deficiency: results following 5 years of treatment. Journal of Pediatric Endocrinology and Metabolism, vol. 36, no. 3, 2023, pp. 261-269.​​​​
Pfizer Data on File: PP-NGE-GBR-0851.​​​​
Pfizer Data on File: PP-NGE-GBR-0421​​​​
PP-NGE-GBR-1019. April 2025

Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk or search 

for MHRA Yellow Card in Google Play or Apple App Store

 

Adverse events should also be reported to Pfizer Medical Information on 01304 616161

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